Transcript
CEILAiR
®
Engineering Manual
Precision Air Conditioning 1 to 10 Tons (60 Hz Data)
Ceiling Mounted Full line of DX & CW Systems Air Technology Systems, Inc.
Air Technology Systems, Inc.
Stulz Air Technology Systems, Inc.
SATS is dedicated to providing innovative solutions for critical temperature and humidity control needs. SATS designs and manufactures specialized environmental control equipment for commercial, industrial and custom military applications. SATS serves a diverse marketplace - including telecommunications, information technology, medical, financial, educational, industrial process and government contracts - utilizing world-class “island” manufacturing processes in a modern, 150,000 ft2 facility. The addition of SATS to the STULZ family of companies solidifies STULZ as a global leader in the precision air conditioning marketplace. SATS combines a global network of sales and service companies with an extensive factory engineering staff and highly flexible manufacturing resources dedicated to providing world-class quality, innovation and customer service.
CeilAiR
ceiling mounted air conditioning units provide temperature and/or humidity control for those hot spot areas in the building which exceed the central system capacity. They are an economical solution to such demands which may, in fact, be temporary until the next offices are carved out of an existing plant area, another laboratory added to a school or new medical equipment installed at a hospital. No floor space is required by the CeilAiR ceiling mounted units. The units are designed with a wide range of options to handle both comfort and precision cooling applications. Typical applications include:
Air Technology Systems, Inc COMFORT
ISO-9001:2001Quality Registered Stulz-ATS is committed to satisfying customer expectations by meeting and exceeding requirements. Our Quality Policy ensures that every Employee is committed to Customer Satisfaction, Teamwork and utilizing Continuous Process Improvement methods in order to deliver an exceptional product. We will continually measure our performance to improve the effectiveness of our quality management system
Precision A/C Applications Stulz-ATS is dedicated to the manufacturing of supplemental and precision air conditioning products. With an extensive installation base, SATS has earned a solid reputation as a quality supplier and leader in its field.
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Air Technology Systems, Inc.
■ Conference Rooms ■ General Office Spaces ■ Modular Offices
CRITICAL / PRECISION
■ Telecommunications Rooms ■ Telephone Switch-Gear Rooms ■ Computer / LAN Rooms ■ Copier / Fax Rooms ■ ATM Bank Centers ■ Elevator Equipment Rooms ■ CAT SCAN / MRI Facilities ■ Hospital Operating & Isolation Rooms ■ Clean Rooms ■ Laboratories
PERFECT FOR TENANT RENOVATIONS!
Table of Contents Table of Contents SECTION - 5
SECTION - 1 Introduction to Stulz-ATS...................................................... 1-1 Table of Contents................................................................. 1-2
SECTION - 2
ELECTRICAL DATA: (FLA / MCA / MFS) Electrical Data Index............................................................. 5-1 DX - Compressorized Systems:
CeilAiR SYSTEMS: Outstanding Advantages...................................................... 2-1 User Oriented Features & Options......................................... 2-2 Available Configurations................................................... 2-3/4
Air Cooled, Self-Contained Systems...................................... 5-2 Air Cooled, Split Systems................................................... 5-2/4 Water Cooled Systems...................................................... 5-2/4 Glycol Cooled Systems...................................................... 5-2/4
MODEL NOMENCLATURE: Nomenclature Chart............................................................. 2-5 Model Nomenclature Specifications...................................... 2-6
SECTION - 3 GUIDE SPECIFICATIONS: Standard Features Index....................................................... 3-1 Standard Guide Specifications........................................... 3-2/4
DX - Air Handling & Remote Condensing Units: DX - Air Handling Units..................................................... 5-5/6 Free-Cooling & Alternate Water Source: DX with Free-Cooling........................................................ 5-7/8 DX with Alternate Water Source........................................ 5-7/8 Chilled Water Air Handling Systems:
Optional Features Index........................................................ 3-5 Optional Features Guide Specifications............................ 3-6/14
Chilled Water Systems.......................................................... 5-9
SECTION - 4
SECTION - 6
PERFORMANCE / CAPACITY SPECIFICATIONS:
DIMENSIONAL / INSTALLATION DRAWINGS:
Performance Data Index....................................................... 4-1
Dimensional Drawing "Quick Find" Index............................. 6-1
DX - Air Cooled Systems.................................................... 4-2/6
Physical Data - Unit Weights (lbs).......................................... 6-2 Connection Sizes - DX Refrigerant........................................ 6-3
DX - Water Cooled Systems............................................... 4-7/8 DX - Glycol Cooled Systems............................................. 4-9/10
Air Cooled Systems........................................................... 6-4/9 Water / Glycol Cooled Systems...................................... 6-10/13 Chilled Water Systems................................................... 6-14/15
Chilled Water Systems................................................... 4-11/16 Free-Cooling & Alternate Water Source Systems............ 4-17/28
Air Technology Systems, Inc.
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CeilAiR Systems CeilAiR ceiling A/C's are designed as the ultimate space saver. They easily mount in a standard 2' x 4' grid of a dropped ceiling plenum and are available with high static blowers (up to 2.0" e.s.p. available) for connection to ceiling plenum ducts. CeilAiR units are especially useful where there is no floor or wall space available for cooling units or where aesthetics demand out-of-sight installation.
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CeilAiR Systems Offer Outstanding Advantages Flexibility
Microprocessor Controls
A wide variety of types are available to meet your unique requirements.
Precision temperature and/or humidity control with unrivaled, user-friendly controls, offer a wide range of functions and alarms.
• DX - Air Cooled • DX - Water Cooled • DX - Glycol Cooled (w/ Remote Drycoolers & Pump Packages • DX - Air Handling Units • Chilled Water Air Handling Units
Air Technology Systems, Inc Versatility • Spot Cooling & Ducted systems • Self-Contained & Split systems
A-Tech-1.1/.2
Space Saving Design
Complete Temperature & Humidity Control
Compact, in-the-ceiling design saves valuable floor space.
Wide Size Range 1 to 10 tons capacity in eleven incremental sizes meets any supplemental cooling requirement.
C-Tech-10
A-Tech-20
• Steam Canister Humidification (Optional) • Dehumidification Mode (Optional) with - Electric Reheat/Heat - Hot Gas Reheat (Energy $aver) - Hot Water & Steam Reheat/Heat
Capacity Modulation Options
Non-Proprietary Parts All CeilAiR systems incorporate non-proprietary components where possible. Most major HVAC, refrigeration and electrical distributors stock an exact model cross reference or an alternate to most factory provided components.
• Single & Dual Compressor Systems • Hot Gas Bypass Systems • Multistage Reheat/Heat
Code Conformance Complies With
L LISTED NRT
UL 1995 C
Listing E112043
R
CSA C22.2 No. 236� Heating & Cooling Equipment
- NYC MEA Approved (MEA-163-88-E) - Chicago Code Approved - MET-C recognized by Standards Council of Canada
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Air Technology Systems, Inc.
User Oriented Features & Options Scroll Compressors
Variety of Air Patterns
CeilAiR DX air conditioners incorporate Scroll Compressor Technology (unless specified otherwise). Scroll Compressors provide higher efficiency, higher reliability and lower sound power than other compressor technologies.
Spot Cooler
EVAPORATOR AIR IN
Year Round Operation
Option offerings available with CeilAiR air conditioners allow for year-round, 24/7 continuous on-line system operation in any environment in the world:
EVAPORATOR AIR OUT
Ducted
Low Ambient Control (DX - Air Cooled) • 0°F Fan Cycling / Fan Speed • -20°F Variable Fan Speed • -30°F Flooded Head Pressure
EVAPORATOR AIR IN EVAPORATOR AIR IN
Quiet Operation
EVAPORATOR AIR OUT
Low sound power Scroll compressors coupled with low RPM blowers, acoustically lined cabinets and low velocity grilles provide the optimum in quiet operation.
Fast Delivery • Stock units complete and ready for shipment • "Rapid-Fire", 5 day Ship Program
Warranty
- 2 Year Parts Standard - Optional 5 Year Compressor
EVAPORATOR AIR OUT
Straight-Thru
90° / Right-Angle
Other Available Options
- Condensate Pumps - Electrical Service Switches - Firestats - Smoke Detectors - Water Leak Detectors - Special High Efficiency Filtration (2" & 4" Filters up-to 60% Dust Spot) - High Pressure DX - Water/Glycol Cooled Condenser Regulating Valves - Free-Cooling & Alternate Water Source Units - Many more options available (see page 3-5)!
Light weight ALL ALUMINUM cabinet and chassis prevents rust & corrosion
Selected Standard Features:
• Acoustical / Thermal Insulation • Aluminum Fin / Copper Tube Coils • Thermal Expansion Valve • Refrigerant Sight Glass • Filter / Drier Strainer • Liquid Refrigerant Reclaim Valves • Insulated SS or Polymer Drain Pans • Condensate Overflow Safety Switch • High / Low Pressure Switches
CeilAiR Ceiling AC Systems (Model OHS-( )-AS Shown)
Air Technology Systems, Inc.
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Space Saving Configuration Choices AIR COOLED SYSTEMS SELF-CONTAINED AIR COOLED - with INTEGRAL Air Cooled Condenser
OHS-012/040-AS
OHS-012/040-AS
(Self-Contained, Ducted Evaporator)
(Self-Contained, "Ductless" Spot Cooler)
SPLIT AIR COOLED -
with REMOTE OUTDOOR or INDOOR Air Cooled Condenser (compressor located with Evaporator Section)
Please refer to the SATS Heat Rejection Engineering Manual for specification and performance data on SATS Remote Condensers & Condensing Units
SATS Remote Outdoor Propeller Condenser
SATS Remote Outdoor Propeller Condenser
SATS Remote Indoor Centrifugal Condenser
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{ SATS Remote Indoor Centrifugal Condenser
OHS-012/040-HAR & OHS-048/060-AR (Single Compressor - Split Evaporator) (Ducted Only)
OHS-012/040-AR
SATS Remote Outdoor Propeller Condenser
(Split Evaporator, "Ductless" Spot Cooler)
Air Technology Systems, Inc SATS Remote Outdoor Propeller Condenser
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SATS Remote Indoor Centrifugal Condenser
OHS-040/120-(D)AR
OHS-012/032-AR
(Dual Compressors - Split Evaporator) (Ducted Only)
(Split Evaporator, Ducted Evaporator)
SPLIT AIR COOLED -
AIR HANDLING UNIT w/ INDOOR or OUTDOOR REMOTE CONDENSING UNIT (compressor located with Condensing Section)
SATS Outdoor Propeller Remote Condensing Unit
SATS Outdoor Propeller Remote Condensing Unit
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SATS Indoor Centrifugal Remote Condensing Unit SATS Indoor Centrifugal Remote Condensing Unit
OHS-012/040-AHU
(Split , DX - Air Handling Unit) ("Ductless" Spot Cooler)
OHS-048/060-AHU
(Split , DX - Air Handling Unit) (Ducted Only)
SATS Outdoor Propeller Remote Condensing Unit
OHS-048/120-DAHU
{ SATS Indoor Centrifugal Remote Condensing Unit
(Split , DX - Air Handling Unit) (Ducted Evaporator)
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SATS Outdoor Propeller Remote Condensing Unit
(Dual Circuit, Split, DX - Air Handling Unit) (Ducted Only)
{ OHS-012/040-AHU & HAHU
SATS Remote Indoor Centrifugal Condenser
Air Technology Systems, Inc.
SATS Indoor Centrifugal Remote Condensing Unit
More Space Saving Configuration Choices WATER COOLED SYSTEMS
SELF-CONTAINED WATER COOLED SYSTEMS
Remote Water Source (supplied by others)
Remote Water Source (supplied by others)
OHS-012/040-W
OHS-012/032-W
(Self-Contained, "Ductless" Spot Cooler)
(Self-Contained, Ducted Evaporator) Remote Water Source (supplied by others)
OHS-012/040-HW & OHS-048/060-W
Remote Water Source (supplied by others)
OHS-048/120-DW
(Single Compressor, Self-Contained, Ducted Only)
(Dual Compressors, Self-Contained, Ducted Only)
GLYCOL COOLED SYSTEMS SELF-CONTAINED GLYCOL COOLED SYSTEMS Please refer to the SATS Glycol Systems Engineering Manual for specification and performance data on SATS Glycol Pump Packages and Drycoolers
OHS-012/040-HG & OHS-048/060-G with SATS DRYCOOLER & PUMP PACKAGE
(Single Compressor, Self-Contained, Ducted Only with Outdoor Propeller Drycooler & Pump Package)
OHS-012/040-G with SATS DRYCOOLER & PUMP PACKAGE (Self-Contained, "Ductless" Spot Cooler with Outdoor Propeller Drycooler & Pump Package)
OHS-048/120-DG with SATS DRYCOOLER & PUMP PACKAGE
OHS-012/040-G with SATS DRYCOOLER & PUMP PACKAGE
(Dual Compressors, Self-Contained, Ducted Only with Outdoor Propeller Drycooler & Pump Package)
(Self-Contained, Ducted Evaporator with Outdoor Propeller Drycooler & Pump Package)
CHILLED WATER SYSTEMS Remote Liquid Chiller (supplied by others)
Remote Liquid Chiller (supplied by others)
OHS-012/040-C
(Self-Contained Air Handler) ("Ductless" Spot Cooler Evaporator)
Remote Liquid Chiller (supplied by others)
OHS-012/040-C
(Self-Contained Air Handler) (Ducted Evaporator)
Air Technology Systems, Inc.
OHS-048/120-C
(Self-Contained Air Handler) (Ducted Only)
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Model Nomenclature - "OHS" Systems Nomenclature
CeilAiR® - Ceiling Mounted A/C's OHS-040-G-FC AWS FC LP OA SF SP
OHS = OverHead System COS = CyberONE System MCS = Modular Cyber System VFS = Vertical Floor System FCS = Floor Console System SCS = STULZ Condensing Section* GPS = Glycol Pump System*
- CeilAiR® Systems
AHU AR AS C CAA D( ) G H( ) ( )AA ( )SA ( )AA EC RCU-I RCU-O W
Nominal Capacity in 1,000's of BTU/H
= = = = = = = = = = = = = = =
= = = = = =
"Alternate Water Source" "Free-Cooling" "Low Profile Configuration" "Outside Air"* "Same-Face" Air Pattern "Special Configuration"
Air Handling Unit Remote (Split) Air Cooled Self-Contained Air Cooled Chilled Water System Indoor Centrifugal Condenser* Dual (Two) Circuit System Glycol Cooled Horizontal Discharge, "H- Series" Configuration (e.g.: HAHU, HAR, HW, HG, & HC) Outdoor Prop Fan Condenser for 0° F* Outdoor Prop Fan Condenser for -20° F* Outdoor Prop Fan Condenser for -30° F* Outdoor Prop Fan Condenser for -20° F* w/ EC Fans Indoor Centrifugal Remote Condensing Unit* Outdoor Remote Condensing Unit* Water Cooled
Air Technology Systems, Inc * SATS Condensers & Condensing Units can be found in our "Heat Rejection" engineering manual. * SATS OHS Oustide Air Units can be found in our "CeilAiR® Outide Air" engineering manual. * SATS Pump Packages and Drycoolers can be found in our "Glycol Systems" engineering manual.
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Air Technology Systems, Inc.
Model Nomenclature Specifications
AIR COOLED SELF-CONTAINED
Integral Self-Contained (Models OHS-012/040-AS)
The system shall be a self-contained, ceiling mounted supplemental air conditioner with factory mounted integral air cooled condenser with centrifugal blower.
The system shall require only single point supply power connection and the system shall ship from the SATS factory with a full operating refrigerant charge. DX - EVAPORATOR SECTIONS
Air Cooled Remote Evaporator (Models OHS-( )-()AR)
The system shall be a remote (split) air cooled, ceiling mounted supplemental air conditioner evaporator. The evaporator section shall house, as a minimum, the evaporator coil, expansion valve, compressor, evaporator blower/motor and associated electrical and refrigeration components. The OHS-( )-()AR evaporator section shall be located at some distance from its corresponding CeilAiR model HES-( )-()CAA indoor or WCS-( ) outdoor air cooled condenser.
(Note: SATS Condensers & Condensing Units can be found in our "Heat Rejection" engineering manual.)
DX - WATER COOLED SYSTEMS
Integral Self-Contained (Models OHS-( )-W / DW)
The system shall be a self-contained, ceiling mounted supplemental air conditioner to include integral water cooled, coaxial condenser with factory installed head pressure water regulating control valve(s). Condenser (source) water shall be provided by a cooling tower or some other remote water source. The system shall require only single point supply power connection and shall ship from the SATS factory with a full operating refrigerant charge. Water Regulating Valves:
Head pressure shall be automatically controlled by a factory installed 2-way water regulating valve rated for 150 psig w.w.p. (Note: 3-way and high pressure 300 to 400 psig rated valves are available as options, page 3-9.)
DX - GLYCOL COOLED SYSTEMS
Integral Self-Contained (Models OHS-( )-G / DG)
mental air conditioner to include integral glycol cooled, coaxial condenser with factory installed head pressure glycol regulating control valve(s). Condenser (source) glycol solution shall be provided via a CeilAiR model GPS-( )-( ) / HES-( )-LGA remote glycol pump package and drycooler system. The system shall require only single point supply power connection and shall ship from the SATS factory with a full operating refrigerant charge. Glycol Regulating Valves: Head pressure shall be automatically controlled by a factory installed 2-way glycol regulating valve rated for 150 psig w.w.p. (Note: 3-way and high pressure 300 to 450 psig rated valves are available as options, page 3-9.)
CHILLED WATER AIR HANDLERS
CHILLED WATER SYSTEM (Models OHS-( )-C)
- CeilAiR® Systems
The condenser shall be sized to provide the total heat of rejection of the system at a 95°F DB ambient temperature.
The evaporator system shall require only single point main power supply connection and the ystem shall ship from the SATS factory with a dry nitrogen holding charge ready for field refrigerant (R-22) charging.
Nomenclature
"CeilAiR" Model Nomenclature Guide Specifications
The system shall be a ceiling mounted chilled water supplemental air conditioner to include chilled water cooling coil, evaporator blower and motor and chilled water control valve. Chilled water shall be provided by a remote liquid chiller system. Chilled Water Control Valve:
Cooling capacity shall be controlled with a slowly opening and slowly closing 2-way motorized control valve rated for 300 psig w.w.p. (Note: 3-way 300 psig motorized valves and 2 or 3-way modulating valves are available as options .)
The system shall be a self-contained, ceiling mounted supple-
Air Technology Systems, Inc.
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Selected Standard Features Guide Spec's
"OHS" Model
012/040-( )
"OHS" Series
012/040-H( )
048/060-( )
048/120-D( )
Std Opt
Std Opt
Std Opt
Std Opt
Opt Opt
Opt Opt
Opt Opt
Opt Opt
Std Opt Opt
Std Opt Opt
Std Opt Opt
N/A Std Opt
Std Std Std Std
Std Std Std Std
Std Std Std Std
Std Std Std Std
Std Opt
N/A Std
N/A Std
N/A Std
Std Opt Std Std Std Std Std
Std Opt Std Std Std Std Std
Std Opt Std Std Std Std Std
Std Opt Std Std Std Std Std
Std N/A
N/A Std
N/A Std
N/A Std
SELECTED STANDARD FEATURES: TEMPERATURE CONTROL • Cooling Only • Heating / Reheating Control
HUMIDITY CONTROL • Electrode Canister Steam Humidifier • Dehumidification Mode with Reheat
CONTROLS • A-Tech-1.1 single stage controls • A-Tech-1.2 two stage controls • C-Tech-10, A-Tech-20, C6000 T/H Microprocessor Controls
CABINET
• • • •
All Aluminum Construction Insulated SS or Polymer Condensate Drain Pan 1/2", 2 lb Density Thermal & Sound Insulation Rubber Hanging Vibration Isolators
- Standard Features "Quick-Reference" Table
FILTERS / GRILLES • Spot Coolers with bottom supply / return filter grille • Ducted Units with flanged ducted connections
DX-REFRIGERATION CIRCUIT
• • • • • • •
R22 Refrigerant R407C Refrigerant Scroll Type Compressor(s), (unless otherwise noted) High Efficiency, Aluminum Fin / Copper Tube Coils Thermal Expansion Valve Refrigerant Sight Glass & Filter/Drier Strainer Refrigerant Service Valves
Air Technology Systems, Inc BLOWERS / MOTORS
• Direct-Drive Evaporator Motors • Belt-Drive Evaporator Motors
ELECTRICAL • Power Supply • Multi-Voltage Control Transformer (24V Class II) • Individual Motor Starter(s) / Contactor(s)
------------------------- See Electrical Tables Section 5 ------------------------Std Std Std Std Std Std Std Std
SAFETY FEATURES • Condensate Pan Overflow Safety Switch(es) • High / Low Refrigerant Pressure Switches (DX units) • Motor Overcurrent and Overload Protection Per UL 1995
Std Std Std
Std Std Std
Std Std Std
Std Std Std
SPECIFIC MODEL STANDARD FEATURES: AIR COOLED • Low Ambient Head Pressure Control • Integral (model OHS-()-AS) or Remote Air Cooled Condenser
------------------- Three types available 0°F, -20°F or -30°F ------------------Std Std Std Std
WATER / GLYCOL COOLED • 2-way, 150 psig Water/Glycol Regulating Valves • High Pressure & 3-way Valves • Coaxial, Tube-in-Tube Heat Exchanger
Std Opt Std
Std Opt Std
Std Opt Std
Std Opt Std
Std
Std
Std
Std
N/A N/A N/A
N/A N/A N/A
N/A N/A N/A
Std Std Std
Std Opt
Std Opt
Std Opt
Std Opt
Std Std
Std Std
Std Std
Std Std
ALL SPLIT DX SYSTEMS • Liquid Line Solenoid Valve to Prevent Liquid Slugging
DUAL CIRCUIT DX SYSTEMS • Two(2) Independent Refrigerant Circuits • Two(2) Equal Horsepower Scroll Compressors (1 per circuit) • A-Tech-1.2 two stage controls
CHILLED WATER SYSTEMS • 2-way, 300 psig Motorized Valve • Modulating, High Pressure & 3-way Valves
CODE CONFORMANCE
• NRTL Conformance Compliance to UL 1995 Standard • NYC MEA-163-88-E / Chicago Code Approval
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Air Technology Systems, Inc.
Guide Specifications (ISO-9001:2001 Registered)
Electrical System
SATS operates in an ISO-9001:2001 registered quality control environment. Each SATS employee is committed to satisfying his or her customer expectations with the highest level of consistent, measurable and continuous quality improvement.
GENERAL GUIDE SPECIFICATION General Description
The system shall be manufactured by ISO-9001 Quality Registered Stulz Air Technology Systems, Inc. in Frederick, Maryland, USA.
Component Access The air conditioner shall be fully accessible in-place through easily removable side access panels.
Cabinet Construction The cabinet and access panels shall be fabricated from aluminum for corrosion protection and to minimize the system’s weight. The panels shall be lined with 2 lb/ft2 high density sound and thermal insulation and sealed with self-extinguishing gasketing conforming to NFPA 90A and 90B.
The evaporator coil shall be mounted in an insulated stainless steel condensate pan.
DX- Refrigeration System Thermal Expansion Valves
The system shall incorporate overcurrent and overload protection in accordance with UL 1995 requirements. Each blower motor, compressor, electric heater stage and humidifier (if applicable) shall be provided with a factory mounted and wired starter / contactor. The control circuit shall be a 24 VAC Class 2 low voltage circuit including a circuit breaker for protection. Low voltage, high voltage and grounding wires shall be color coded and shall be individually numbered at each end for ease of service tracing. All wiring shall be in accordance with the National Electric Code (NEC).
Overflow Safety Float Switch
A condensate pan water level switch shall be incorporated to shut the system down if a condensate overflow condition is sensed.
Filter Drier/ Strainers Sight Glasses
All refrigeration piping shall be refrigerant grade tubing. Each refrigerant circuit shall include, as a minimum, refrigerant drier/strainer, sight glass with moisture detector, thermal expansion valve with rapid bleed port feature and external equalizer, evaporator coil, compressor, high pressure switch with manual reset and a low pressure switch with automatic reset. Split / Remote systems shall have a liquid line solenoid for refrigerant isolation to prevent liquid slugging. All high pressure joints shall be brazed, and the entire system shall be pressure tested at the factory with dry nitrogen, evacuated to at least 50 microns and fully charged with refrigerant.
- Standard Equipment
The system shall be a ceiling mounted supplemental air conditioner designed and built to the highest of industry standards. The system shall be complete and factory run-tested before shipment. The system shall be listed and labeled in compliance with UL 1995 (# SATS-1995) by an approved Nationally Recognized Testing Laboratory (NRTL). The system shall be MEA NYC (MEA-163-88-E) and Chicago Code approved.
pered aluminum fins with a raisedlanced fin design for maximum heat transfer. Coil end plates shall be hot dipped galvanized.
Guide Spec's
QUALITY ASSURANCE
Standard Equipment
Note: All split / remote DX systems ship with a dry nitrogen holding charge. All self-contained DX systems ship with a full refrigerant (R-22) operating charge.
Remote Stop / Start
Included in the system's electrical control circuit shall be a 2-pin terminal connection for remote stop / start of the CeilAiR air conditioner by a remote source.
Scroll Compressors
Coils Evaporator systems shall be configured for a draw-thru air pattern to provide uniform air distribution over the evaporator coil face. The coils shall be seamless drawn copper tubes, mechanically bonded to tem-
Air Technology Systems, Inc.
Each compressor shall be a high efficiency, high reliability and low sound Scroll Compressor, unless specifically noted otherwise.
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Guide Specifications Guide Spec's
The compressor shall be complete with charging and service schraeder ports, internal vibration isolation, internal thermal overloads, internal pressure relief valve, internal discharge gas vibration eliminator and external vibration mounting isolation.
Chilled Water Systems (Models OHS-()-C)
Standard Equipment
motor shall be factory wired for the correct speed to produce the specified air quantity. The motor(s) shall have internal overload protection. (277V & 460V direct-drive motors shall be 2-speed.)
Belt Driven Systems
Cooling Coil: The chilled water coil shall be constructed of seamless drawn copper tubes, mechanically bonded to tempered aluminum fins for maximum heat transfer. Coil end plates shall be hot dipped galvanized.
- Standard Equipment
The cooling coil shall be mounted in an insulated stainless steel condensate drain pan. Control Valve:
Temp & Humid Control The standard CeilAiR system is configured as a "cooling only" system. Heating, reheating and/or humidity control can be optionally added to provide total space temperature and humidity control. (Please see pages 3-5 thru 3-7 for more details.)
A-Tech-1.1 The blower(s) shall be belt driven with double width, double inlet housing and forward curved blades and permanently lubricated ball bearings sized for an average 100,000 hours of service life. The blowers shall be dynamically and statically balanced to minimize vibration and operate in the Class I range.
Standard single stage DX and nonproportional CW Heat/Cool programmable digital thermostat.
A-Tech-1.2
Standard dual stage DX Heat/ Cool programmable digital thermostat.
Air Technology Systems, Inc Cooling capacity shall be controlled by a factory installed slowly opening and slowly closing 2-way motorized control valve rated for a maximum 300 psig w.w.p.
The blower(s) shall have an adjustable base for belt tensioning and a locking system to prevent the motors from moving. The motors’ drive sheaves shall have an adjustable pitch to change the speed of the blowers. The motor(s) shall be 1725 RPM and shall have overload protection and a minimum NEMA service factor of 1.15.
(Note: Please refer to page 3-10 for additional chilled water valve options.)
Optional single or dual stage DX or non-proportional CW Temperature and Humidity Microprocessor Controller with alarms.
Blowers / Motors
A-Tech-20 & C6000
Optional all purpose Advanced Temperature and Humidity Microprocessor Controllers with alarms and optional remote BMS communications connections.
Direct Drive Systems
The blower(s) shall be direct driven with double width, double inlet housing and forward curved blades. The blower(s) shall be dynamically and statically balanced to minimize vibration and operate in the Class I range. The blower(s) shall be corrosion protected with a painted housing and impeller wheel.
(NOTE: Please refer to pages 3-6 & 3-7 for additional specification details on all CeilAiR ceiling AC control options.)
The three speed (208V) evaporator
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C-Tech-10
Air Technology Systems, Inc.
Guide Specifications -
Standard Equipment
DX - Heat Rejection
"Ductless" Spot Cooler
AIR COOLED
(Models OHS-012 thru 040-( ) only.) The air conditioner shall be designed for installation in a standard 2' x 4' ceiling grid for ductless supply and return evaporator air through a factory provided bottom supply & return filter grille.
Please refer to the SATS Heat Rejection Engineering Manual for specification details of air cooled condensers and condensing units.
WATER / GLYCOL COOLED
Guide Spec's
Evaporator Air Patterns & Filtration
Water/Glycol Cooled Condensers Coaxial Tube-In-Tube:
(Available on all model sizes) The air conditioner shall be provided with evaporator supply and return air duct connections. EVAPORATOR AIR IN EVAPORATOR AIR IN
EVAPORATOR AIR OUT
EVAPORATOR AIR OUT
The unit shall have slide out, 1" deep Class 2 (per U.L. Standard 900) filter(s) easily accessed through a side access panel. The filter shall have a rating of at least 80% average arrestance as measured by ASHRAE Standard 52-76 test method.
Each evaporator refrigerant circuit shall be provided with a factory installed single pass, counterflow configured, tube-in-tube coaxial condenser; designed and tested for a 450 psig. w.w.p. 2-Way, 150 psig Regulating Valve (Standard on all OHS-( )-()W/G) Each refrigerant circuit's head pressure shall be controlled by a factory installed 2-way water / glycol regulating valve rated for 150 psig. w.w.p. (Note: 3-way and high pressure water/ glycol regulating valves are optionally available, page 3-9.)
Standard Equipment
Ducted Evaporator
(Models OHS-012/120-()W/G)
-
The air conditioning unit shall have a drop out, 1" deep, class 2 (per U.L. Standard 900) filter easily accessed through the hinged return grille. The filter shall have a rating of at least 80% average arrestance as measured by ASHRAE Standard 52-76 test method.
(Note: Please refer to Section 6 for standard CeilAiR cabinet configurations. Consult your local SATS sales representative for special applications.)
Air Technology Systems, Inc.
3-4
Optional Features -
Guide Specifications
Optional Features
Optional Features Index
OPTION . ............................................. page Microprocessor Controls • A-Tech-1.1 • A-Tech-1.2 • C-Tech-10 • A-Tech-20 • A-Tech-20 • C6000 • C6000
(Digital Thermostat, 1-stage)................. 3-6 (Digital Thermostat, 2-stage)................. 3-6 (Micro Temp/Humid w/ Alarms)............. 3-6 Advanced Microprocessor..................... 3-7 Remote Communications...................... 3-7 Advanced Microprocessor..................... 3-8 Remote Communications...................... 3-9
Humidity Control Options
Free Cooling - Valve Combinations • 150 psig Rated System: (standard)....................... 3-11 - 3-way, 150 psig, DX Condenser Valve(s) - 3-way, 300/400 psig, FC Coil Valve • 300 psig Rated System: (optional)........................ 3-11 - 3-way, 350 psig, DX Condenser Valve(s) - 3-way, 300/400 psig, FC Coil Valve • 400 psig Rated System: (optional)........................ 3-11 - 3-way, 450 psig, DX Condenser Valves - 3-way, 400 psig, FC Coil Valve
• Steam Humidifier.................................................... 3-10
Capacity Modulation Options
-
• Dehumidification Cycle
Index
- Electric Reheat / Heat....................................... 3-10 - Hot Gas Reheat................................................ 3-10 - Hot Water Reheat / Heat.................................. 3-10 - Steam Reheat / Heat........................................ 3-10 - SCR Fired (0-10 Vdc) Electric Reheat................. 3-10
• Snap-Acting, Hot Gas Bypass.................................. 3-11 • Full-Floating, Hot Gas Bypass.................................. 3-12 • Dual Compressor / 2-Stage Systems........................ 3-12 • Modulating Chilled Water Control Valves................ 3-12
Air Technology Systems, Inc ACCESSORIES
High Static Pressure Blowers
• High Static Belt-Drive Blower Upgrade............... 3-10/11 (Up to 2.0" ext. static pressure)
• 3-Phase Power Supply............................................ 3-12 • 277/1/60 Power Supply.......................................... 3-12 • Condensate Pump............................................. 3-12/13
High Efficiency Filtration (IAQ)
• Smoke Detector...................................................... 3-13
• IAQ High Efficiency Filters...................................... 3-11
. ......................................................... 3-13
• Remote Water / Leak Detector................................ 3-13 • Acoustical Compressor Sound Jackets..................... 3-13
Head Pressure Control Options Air Cooled - Low Ambient Control • 0°F Ambient..................................................... 3-11 • -20°F Ambient................................................. 3-11 • -30°F Ambient................................................. 3-11 Water/Glycol Cooled - Regulating Valves • 2-way, 150 psig (Standard)............................... 3-11 • 2-way, 350 psig................................................ 3-11 • 2-way, 450 psig................................................ 3-11 • 3-way, 150 psig................................................ 3-11 • 3-way, 350 psig................................................ 3-11 • 3-way, 450 psig................................................ 3-11
3-5
• Firestat
• Low Entering Condenser Water.............................. 3-14 • Main Power - Non-Fused Service Switch.................. 3-14 • Refrigerant Lines with Quick Disconnect Couplings................................... 3-14
Energy $aving Cooling Options • Free-Cooling Cycle.................................................. 3-14 • Alternate Water Source Cycle................................. 3-14
Air Technology Systems, Inc.
Optional Features -
A-Tech-1.1
5-Levels of microprocessor control offerings allow you the flexibility of selecting the best control scheme for their unique requirements:
A-Tech-1.1
Standard single stage DX and non-proportional CW Heat/Cool programmable digital thermostat.
Standard dual stage DX Heat/ Cool programmable digital thermostat.
C-Tech-10 The CeilAiR ceiling air conditioner shall be provided with SATS' "slimline", ultra-thin profile, 1stage cool / 1-stage heat, remote wall mounted programmable digital microprocessor based controller. Note: The A-Tech-1.1 thermostat is standard on all single stage DX and non-proportional chilled water systems.
A-Tech-1.2
C-Tech-10
Optional single or dual stage DX or non-proportional CW Temperature and Humidity Microprocessor Controller with alarms.
A-Tech-20
Optional all purpose Advanced Temperature and Humidity Microprocessor Controller with alarms and optional remote BMS communications connections.
C6000
Optional all purpose Advanced Temperature and Humidity Microprocessor Controller with alarms and optional remote BMS communications connections.
Temperature & Humidity Microprocessor Controller
The CeilAiR ceiling mounted air conditioner shall be provided with SATS' C-Tech-10 Microprocessor based Temperature and Humidity controller with Alarms. The controller shall incorporate a userfriendly operating environment with backlit graphic LCD display. Standard Features:
The CeilAiR ceiling air conditioner shall be provided with SATS' "slimline", ultra-thin profile, 2-stage cool / 2-stage heat, remote wall mounted programmable digital microprocessor based controller. Note: The A-Tech-1.2 thermostat is standard on all dual stage DX systems.
Common A-Tech-1.1/1.2 Features: • Auto changeover for Heat/Cool Modes • Selectable °F or degrees C display • Fan selector for continuous fan operation • Built-in short cycle protection • Internal switch to lock-out the keypad to prevent unauthorized tampering • Electronic calibration • 45 second fan purge after heating and cooling call • Day/Night button for user selectable alternate setpoint manual setback
Air Technology Systems, Inc.
Display / Keypad: • Backlit LCD graphic display with characters to show the operating mode, time, set points and actual readings • Internal Temperature and Humidity Sensor • 3 Set Point Programmable (Normal, Temporary, Night) per day, 7 days per week • Summary Alarm Contact
- Microprocessor Control Options
A-Tech-1.2
• 12 hour or 24 hour clock • Daylight Savings Time button to adjust the clock +/- 1 hour • Copy button to allow one program to be copied to subsequent days • Override feature • Does not require a battery • Solid state electronic output
Optional Features
CeilAiR Control Options
Microprocessor Control Options
Visual/Audible Alarm Indication: ■ High Temp (HI T) ■ Low Temp (LO T) ■ High Humid (HI H) ■ Low Humid (LO H)
■ Dirty Filter (E FL) ■ Sensor Failure ■ Comm. Failure ■ Summary (E ID)
• Summary Alarm (E ID): condensate overflow/water detection; smoke detec- tion; firestat (if applicable) •
Maintenace Alarms: based on user defined component run-times schedules (compressor 1 (HR 1) & 2 (HR 2); evap blower (HR F).
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Optional Features Optional Features
System Operation: • Fan Continuous or on Demand • Auto-Restart Upon Power Loss • Remote Stop/Start Connection • Short Cycle Protection • Cold Start Time Delay • Pump-Down Cycle Optional Features:
Remote Temp/Humid Sensor: • Optional remote wall mounted temperature and humidity sensor Remote Sensor Cable Options: • 75 ft. cable length (standard option) • 150 ft. cable length
A-Tech-20
• • • • • • • • • • •
Microprocessor Control Options
Remote Stop / Start Connection Selectable Automatic or Manual Restart Upon Power Loss Sequential Load Activation Upon Power Loss Restart Alarm Delay for Space T/H Recovery Upon Power Loss Restart Multi-Level Password Security Protection Short Cycle Protection Cold Start Time Delay Pump-Down Cycle Service Mode Time-Clock with Override Night-Setback with Override
three methods: 1) 2) 3)
Manual ChangeOver Automatic Timed (1-30 days) Automatic ChangeOver on Unit Failure (if applicable):
Interconnect Cable Options: • 75 ft. cable length (standard option) • 150 ft. cable length
Capacity Assist-Mode: (Additionally Optional)
- Microprocessor Control Options
• 30 ft. cable length (standard) • 75 ft. cable length • 150 ft. cable length
In addition to switchover via manual, automatic timed or failure, the CyberLAN Multi-Unit Sequencing “Capacity AssistMode” can initiate switchover to standby unit operation to assist in the temperature and/or humidity control of the space.
Remote Sensor Cable Options:
Capacity Assist Sensor Cable Opts:
• 75 ft. cable length (standard option) • 150 ft. cable length
• 75 ft. cable length (standard option) • 150 ft. cable length
Display/Sensor Options: Remote Display Cable Options:
Air Technology Systems, Inc ALARM CONDITIONS:
Advanced Microprocessor Temperature & Humidity Controller with Alarms
The CeilAiR ceiling mounted air conditioner shall be provided with SATS' A-Tech-20 Advanced Microprocessor based Temperature and Humidity controller with Alarms. The controller shall incorporate a "user-friendly" operating environment, to allow easy system setup and operation. Standard Features: • • • • • • • • •
3-7
4 x 20 character liquid-crystal alpha-numerical display Field Configurable 30 Ft. Remote Display Cable Unit Mounted T/H Sensor Current Unit Status Component Run-Time History Visual & Audible Alarm Indication Summary Alarm Contacts Alarm History
The A-Tech-20 alerts to the following alarm conditions (if applicable): ■ High Temperature ■ Low Temperature ■ High Humidity ■ Low Humidity ■ High Head Press ■ Low Suction Press ■ Loss of Air Flow ■ Loss of Power
■ Dirty Filter ■ Smoke Detection ■ Firestat ■ Leak Detection ■ GC Pump Failure ■ Sensor Failure ■ Comm. Failure
CyberLAN w/ A-Tech 20 Remote Communications (Optional)
REMOTE BMS CONNECTION (ModBus Gateway)
The operator may select which alarms are active or inactive. CyberLAN Networking Options: Multi-Unit Sequencing:
Multiple CyberAiR air conditioners incorporating A-Tech-20 controls can be configured in groups of up to 6 (six) units to allow for "N+1" redundancy/backup critical application operation. The A-Tech-20 is programmed to automatically change from current primary unit operation to secondary standby unit operation via
Air Technology Systems, Inc.
A-Tech-20 Inputs & Outputs can be remotely monitored (address readable) and remotely controlled (address writable) via any building management system (BMS) / local area network (LAN) control system that can communicate via a ModBus protocol. 16 Units Per CyberLAN ModBus: Each ModBus Gateway can accommodate up to 16 (sixteen) A/C units in a group.
Optional Features The CeilAiR ceiling-mounted air conditioner shall be provided with SATS’ C6000 Microprocessor based Temperature and Humidity controller with Alarms. The controller shall incorporate a “user-friendly” operating environment, to allow easy system setup and operation. The C6000 is a complete microprocessor based control system designed for operating, controlling and monitoring the precision air conditioning unit.
The controller shall be mounted in an indoor rated steel box. The box shall be powder coated to match the environmental control unit. The box shall contain the controller board, the IO board, and all necessary transformers and internal wiring. The control box shall be wall mounted and field wired to the environmental control unit. Display Key Pad
The Display Key Pad shall feature an easy to read, liquid-crystal alpha-numerical display. The keypad/display allows the operator to visually monitor and customize unit functions and settings. The self-explanatory, keypad nomenclature shall aid in the ease of location of system programming features.
Sensor Location Options As a standard, the C6000 temperature and humidity sensor shall be factory unit mounted in the return air stream of the Precision AC unit, after the return air filter(s). System Setup & Adjustments The C6000 shall be completely factory preprogrammed, and therefore, most applications will require no field setup. However, the “default” set points and their ranges are easily adjusted from C6000 keypad/display. Unit Status Display The C6000 keypad displays current unit functions and room status: • Current Dry Bulb Temp Set Point • Current Relative Humidity Set Point Current Unit Status • System ON/OFF • Cooling • Heating • Humidifying • Dehumidifying • Standby Mode • Reheating • Manual Mode • Actual Room DB Temperature • Actual Room Relative Humidity Run Times The historical run-time in hours of the following major components shall be available directly from the C6000 keypad/display: (if applicable) • Blower Motor(s) • Humidifier
Air Technology Systems, Inc.
• Chilled Water Valve Alarm Conditions Alarm conditions activate an audible and visual indicator. An alarm shall be acknowledged through a Reset button located on the keypad display. The C6000 alerts to the following alarm conditions (if applicable): • High Temperature • Low Temperature • High Humidity • Low Humidity • Smoke Detection • Firestat • Leak Detection • Sensor Failure • Dirty Filter • Loss of Air Flow Summary Alarm Contact A summary alarm dry-contact (n/o) connection shall be available for remote annunciation of an alarm condition. An additional user-defined custom alarm dry-contact shall also be available on most system configurations. Alarm History The C6000 controller provides users with a recorded history of the last 80 alarms, including the time and date of the alarm occurance. Control Inputs/Outputs The C6000 is capable of both digital (on/off) and analog input and output device control. Prior to shipment, each Precision AC unit’s C6000 is factory program configured to match the unit’s system operational requirements.
- Microprocessor Control Options
The C 6000 controller shall include a full-featured LED display for visual indication of the units operating conditions.
Field Configurable The C6000 controller is field program configurable and capable of matching the unique needs of any data center, telecommunication or other critical area.
Optional Features
C6000
Microprocessor Control Options
Temperature Anticipation The C6000 shall incorporate a self-calibrating and self-adjusting control logic that adjusts the re-
3-8
Optional Features Optional Features
sponse of the SATS air conditioner to changes in temperature and humidity. The system shall provide premium setpoint accuracy while controlling the room condition’s rate of change, minimizing the equipment energy consumption and maximizing the system’s operating life and reliability.
- Microprocessor Control Options
Power Loss Restart In the event of a loss of power to the system, the C6000 can be configured for Automatic or Manual Restart. The C6000’s non-volatile memory enables the system to restart when power is restored, without the loss of the “last” stored set points and other system configuration settings. Sequential Load Activation To minimize the total in rush current loads during system startup/restart, the C6000 controller shall be configured for time-delay sequence startup. The user can designate specific unit restart time-delays, as well as, each unit’s respective electric heater and/or humidifier. Unit restart delay can be adjusted from 0 to 10 minutes.
Microprocessor Control Options
Diagnostic & Service Mode The C6000 shall incorporate a unique self-diagnostics algorithm that continually tests systems functions and hardware operation. In the event of such a failure, the user will be alerted to the condition via a visual and audible alarm. Control Board The Control Board shall initiate a self-test of the control system. Input Diagnostics All system inputs and output devices shall be continuously monitored for proper operation. Night Set-back The C6000 shall include Night SetBack occupied/non-occupied energy saving modes. This feature enables the user to customize each unit’s daily 5-day/weekly and 2-day/weekend operational schedule.
MIB GATEWAY (Optional) C-6000 Inputs & Outputs shall be remotely monitored (address readable) and remotely controlled (address writable) via any building management system (BMS)/local area network (LAN) control system that can communicate via a ModBus protocol. Each C-6000 configured for BMS communication shall incorporate an RS-485 Serial Communication Port that is field connected to a factory provided wall mounted MIB Gateway.
MIB-FS GATEWAY (Optional) C-6000 Inputs & Outputs shall be remotely monitored (address readable) and remotely controlled (address writable) via a building management system (BMS)/local area network (LAN) control system. Available Protocols, Modbus RTU, Modbus TCP/IP, Bacnet IP, Bacnet MSTP, Bacnet Ethernet, Metasys N-2, and Lonworks.
Air Technology Systems, Inc Each C-6000 configured for BMS communication shall incorporate an RS485 Serial Communication Port that is field connected to a factory provided wall mounted MIB Gateway. The MIB-FS requires field configuration. Number of units, type of protocol employed, and individual data-points monitored must be configured in the MIB-FS prior to use.
Recovery Delay After a power loss, the C6000’s Recovery Delay feature allows the system to operate without initiating any high or low temperature or humidity alarms for a delayed period. This feature allows time (15 to 60 minutes adj.) to “pull-down” the conditioned space’s load without nuisance alarms during initial startup or power loss restart. Security Multiple security levels prevent unauthorized adjustment of critical system control parameters.
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Remote BMS Connection
Air Technology Systems, Inc.
Optional Features -
Hot Water Reheat/Heat
Electric Reheat/Heat
A factory installed copper tube, aluminum fin heat/reheat coil and 2-way control valve shall be provided to control the flow of hot water for automatic sensible reheating mode during the dehumidification cycle and automatic heating mode as required.
Humidity Control
Dehumidification Cycle The ceiling air conditioner shall be provided with a refrigeration based dehumidification mode. Moisture shall be condensed on the cooling coil and discharged through the condensate drain. Reheat (electric, hot gas, hot water or steam) shall be provided to offset sensible cooling during the dehumidification cycle.
Hot Gas Reheat: (Models OHS-()-AS, AR, W & G only)
Scroll Compressor
Hot Gas Reheat Valve Flooded Head Pressure Control Valve Relief Valve
Refrigerant Reclaim Port Liquid Refrigerant Receiver
Equalizer Line
Remote Air Cooled Condenser
LP
HP
Sight Glass
Hot Gas Evaporator Cooling Coil Reheat Coil
Feeler Bulb
Air Flow
Steam Reheat/Heat A factory installed copper tube, aluminum fin heat/reheat coil and 2-way control valve shall be provided to control the flow of steam for automatic sensible reheating mode during the dehumidification cycle and automatic heating mode as required. (Note: Steam trap and steam piping specialities shall be provided by others not SATS.)
SCR Fired Reheat/Heat The electric heat/reheat shall be controlled through a “Zero Firing” Silicon Controlled Rectifier (SCR) with an extruded aluminum heat sink and solid state logic system to provide close dry bulb temperature control of the conditioned air. A-Tech-20 proportional (0-10 Vdc) microprocessor controls shall be provided with the SCR Fired Electric Reheat option.
High Static Pressure Belt-Drive Blowers
- Guide Specifications
The humidifier shall be an electrode steam canister type and shall have an adjustable humidity output setting from 25 to 100% of the full rated humidifier capacity, an automatic flush cycle that senses the current consumption of the humidifier and controls mineral concentration of the water. A “Change Cylinder” light shall notify service personnel when the humidification output is below rated requirements and when maintenance is due.
Heaters shall use fast reacting nichrome wire heater elements which cool quickly when turned off eliminating residual heat problems.
Equalizer Line
Canister Steam Humidification
A factory mounted and wired electric resistance heater shall be included to provide automatic sensible reheating mode during the dehumidification cycle and automatic heating mode as required. Electric heaters shall be provided with thermal / magnetic circuit breakers which shall protect each conductor. The heater elements shall be housed within a stainless steel frame with mounted supports. Included shall be one automatic resetting over-temperature safety device (pilot duty), and a non-resettable over-temperature safety device (located in main power line).
Optional Features
SELECTED OPTIONS
Guide Specifications
Solenoid Valve Refrigerant Drier / Strainer Thermal Expansion Valve
A factory installed copper tube, alumninum fin hot gas reheat coil and valve shall be provided for automatic sensible reheating mode during dehumidification cycle. Hot compressor discharge gas shall be diverted from the condenser to the hot gas reheat coil providing energy free sensible reheating. (Note: Hot Gas Reheat is not available on systems incorporating Free-Cooling or Alternate Water Source, because no method of reheat would be available during non-compressorized FC or AWS operation.)
Air Technology Systems, Inc.
The CeilAiR ceiling air conditioner shall be provided with a high static pressure belt-driven evaporator blower to provide standard unit CFM @ ____ " e.s.p. (Note: Due to the probable change in standard unit blower motor horsepower for the High Static Belt-Drive Blower
3-10
Optional Features Optional Features
option, please consult your local SATS sales representative for the following unit specification changes: • • • •
Blower Motor Horsepower Net Cooling Capacity Electrical Data Discharge Blower Data
Unit AIr Flow Rate (CFM) will match the standard data as shown in Section 4 of this manual for each respective unit model.)
Filtration
Guide Specifications
fan speed head pressure control for year-round air conditioning system operation down to 0°F DB minimum ambient air temperature. (Note: 0°F fan cycling head pressure control is a standard feature for all CeilAiR air cooled condensers and condensing units incorporating direct drive condenser fans.)
FREE-COOLING SYSTEMS
-20°F, Variable Speed Control (Model WCS-( ) Condensers) The air cooled system shall incorporate a low ambient variable speed fan head pressure control for year-round system operation down to -20°F DB minimum ambient air temperature. -30°F, Flooded Control Remote Air Cooled Condenser (Optional)
Flooded Head Pressure Control Valve
Relief Valve
Liquid Refrigerant Receiver
HP
Evaporator Cooling Coil
LP
Sight Glass Refrigerant Reclaim Port
Low Pressure Switch
Liquid Line Solenoid Valve Refrigerant Drier / Strainer
Feeler Bulb
Equalizer Line
- Guide Specifications
High Pressure Switch
DX Water/Glycol Cooled systems with Free-Cooling are available with the following standard and optional DX head pressure and Free-Cooling valve combinations: 150 psig Rated System: (standard)
Scroll Compressor
CeilAiR ceiling A/C's are available with the following standard (F1) and optional (F2, F3 & F4) high efficiency IAQ conscious filtration:
Each refrigerant circuit's head pressure shall be controlled by a factory (or field) installed ____-way water / glycol regulating valve rated for ____ psig. w.w.p.
Thermal Expansion Valve
• DX Valves = 3-way, 150 psig • FC Valve = 3-way, 300/400 psig 300 psig Rated System: (optional) • DX Valves = 3-way, 350 psig • FC Valve = 3-way, 300/400 psig
Air Technology Systems, Inc F1: F2: F3: F4:
1", 20% Eff. Filters (standard) 2", 30% Eff. Filters 4", 60% Eff. Filters 2", 30% Pre / 4", 60% Eff. Final Filters
Air Pattern Type
Filters Avail.
Direct Drive 012/040: w/ Spot Cooler: w/ Ducted Return:
F1 F1, F2 (n/a 024)
Belt-Drive Units: w/ Ducted Return:
F1, F2, F3 & F4
The air cooled system shall incorporate a low ambient flooded head pressure control for year-round system operation down to -30°F DB minimum ambient air temperature.
This option shall include a factory installed crankcase heater, cold-start relay, liquid refrigerant receiver with receiver liquid level sight glass and head pressure regulating valve for flooded condenser operation.
Filter ratings are based on dust spot efficiency ratings per ASHRAE Test Standard 52-76. (Note: F2, F3 & F4 optional filters create additional static pressure and may require the High Static Pressure Belt-Drive Option. Please consult your local Sales Representative for details.)
Head Pressure Control AIR COOLED - Low Ambient 0°F, Fan Cycling / Fan Speed The air cooled system shall incorporate a low ambient fan cycling /
3-11
400 psig Rated System: (optional) • DX Valves = 3-way, 450 psig • FC Valve = 3-way, 400 psig
Each refrigerant circuit's head pressure shall be controlled by a field installed 3-way water / glycol regulating valve rated for ____ psig w.w.p. Free-Cooling mode cooling shall be controlled by a factory installed 3-way motorized (on/off) control valve rated for ____ psig. w.w.p. Note: Modulating (0-10 Vdc) Free-Cooling mode cooling control is optionally available via A-Tech-20 controls and modulating 3-way FC control valve.
DX Water Cooled and Glycol Cooled systems are available with following standard (V1) and optional (V2-V6) head pressure regulating control valves: V1: 2-way, 150 psig (standard) V2: 2-way, 350 psig V3: 2-way, 450 psig V4: 3-way, 150 psig V5: 3-way, 350 psig V6: 3-way, 450 psig
}
Air Technology Systems, Inc.
3-way valves ship loose for field installation.
DX - Capacity Modulation / Freeze-Protection SNAP-ACTING, Hot Gas Bypass (Models OHS-()-AS, AR, W & G only) The CeilAiR ceiling A/C shall incorporate a snap acting hot gas bypass system to provide modulation of the unit’s cooling capacity and evaporator coil freeze protection under low load conditions.
Optional Features -
Guide Specifications
Scroll Compressor
HP LP
Low Pressure Switch
Flooded Head Pressure Control Valve
Feeler Bulb
Equalizer Line
High Pressure Switch
Evaporator Cooling Coil
Hot Gas Regulator Valve (Optional) Relief Valve
Liquid Line Solenoid Valve
Sight Glass
Refrigerant Liquid Refrigerant Reclaim Port Receiver
Refrigerant Drier / Strainer
Thermal Expansion Valve
FULL-FLOATING, Hot Gas Bypass (Models OHS-( )-()AHU/SCO only)
DUAL COMPRESSOR SYSTEMS (Models OHS-( )-D())
V6: 3-way, 400 psig Standard (On/Off) Valve Control : A ____-way motorized (On/Off) CW or AWS cooling control valve rated for a maximum ____ psig w.w.p. shall be factory unit installed. Precision cooling control shall be accomplished via a spring return slow open and close valve design. Optional (0-10 Vdc) Valve Control: A ____-way modulating CW or AWS cooling control valve rated for a maximum ____ psig w.w.p. shall be factory installed. Precision cooling control shall be accomplished via a 0-10 Vdc A-Tech-20 analog control signal to the proportional actuating control valve.
ACCESSORIES
The air conditioner shall be provided with a 2-Stage temperature controller with microprocessor based control logic for automatic staging.
Chilled Water & AWS Control Valves
Chilled Water and Alternate Water Source cooling shall be controlled by the following standard and optional control valves:
Remote Air Cooled Condenser (Optional) Scroll Compressor
High Pressure Switch Flooded Head Pressure Control Valve
Relief Valve
Liquid Refrigerant Receiver
HP
Evaporator Cooling Coil
LP
Sight Glass Refrigerant Reclaim Port
Low Pressure Switch
Liquid Line Solenoid Valve Refrigerant Drier / Strainer
Thermal Expansion Valve
Three phase power supply is available, as an option, on OHS-024, 032 & 040-() units. Compressor, (belt-drive blower motor(s) and electric heat/reheat if applicable) shall be three phase in lieu of standard single phase. All other components (5/10 lb humidifier and direct drive motor(s)) shall be single phase, with each leg of power supply balanced as closely as possible. (Note: Three phase power supply is a standard feature on models OHS-048 and larger units.)
Models OHS-012/060-C / AWS: V1: V2: V3: V4:
Feeler Bulb
Equalizer Line
The air conditioner shall be a dual scroll compressor system with two independent refrigeration circuits to provide 50% capacity unloading, as well as component redundancy.
Note-1: Fast delivery orders sometimes require that the OHS system be shipped from stock as 208/1/60. In those cases, 277/1/60 applications are provided with a field installed 277 to 208 step-down transformer.
Condensate Pump
3 Phase Power Supply
A main power distribution block shall be located in the air conditioner's electric box for single point power connection to a 277/1/60 power supply source. All system components (motor, heater & humidifier, if applicable) shall be rated for operation with a 277/1/60 power supply. 277V to 208V main power step-down transformers shall not be required.
2-way, 300 psig (standard) 2-way, 400 psig 3-way, 300 psig 3-way, 400 psig Air Technology Systems, Inc.
A Low-Profile condensate pump designed for limited height ceiling plenum installation shall be factory provided for automatic removal of condensate and humidifier flush water (if applicable). The condensate pump shall be field installed as a standard.
- Guide Specifications
The CeilAiR ceiling A/C shall incorporate a full floating hot gas bypass system to provide modulation of the unit’s cooling capacity and evaporator coil freeze protection under low load conditions.
(Models OHS-012 thru-040)
V5: 2-way, 400 psig (standard)
Optional Features
277/1/60 Power Supply
Models OHS-072/120-C / AWS:
Remote Air Cooled Condenser (Optional)
A heavy duty All-Metal condensate pump shall be provided for automatic removal of condensate and humidifier flush water (if applicable). The pump shall be constructed with a cast aluminum reservoir and impeller; aluminum reservoir cover and impeller chamber cover; stainless steel fasteners and a stainless steel motor shaft. The condensate pump meets most local codes for certification as a "plenum rated" pump. The condensate pump shall be field installed only.
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Optional Features Optional Features
The condensate pump shall be specifically designed to operate with the higher condensate temperatures caused by the flush and drain cycle of the electrode canister humidifiers. Dual Overflow Safety Switches: In addition to the standard condensate pan overflow safety float(s), the condensate pump shall include an internal overflow safety float switch which, when wired to the A/C's remote stop/start terminals, shall open the A/C's control circuit, thereby shutting the A/C down in the event of a condensate overflow.
Guide Specifications
1 to 3 Ton Models: OHS-012/040-HAS, HAR, HAHU, HW, HG & HC 4 to 10 Ton Models: OHS-048/120-()AR, AHU, W, G & C
Factory Installed In-Pan Condensate Pump (Not Available w/ Humidifier)
Smoke Detector
water/leak detector per CeilAiR A/C unit shall be factory provided for remote field installation. Upon sensing a water leak, the normally closed water detector control circuit shall open, thereby shutting down the air conditioner's water producing operations.
- Guide Specifications
Dual (two) - Spot Type Detectors: Quantity 2(two) remote spot type water/leak detectors per CeilAiR A/C unit shall be factory provided for remote field installation. Upon sensing a water leak, the normally closed water detector control circuit shall open, thereby shutting down the air conditioner's water producing operations. 20 Ft. - Strip/Cable Type Detector:
Air Technology Systems, Inc Factory Installed - Optional
A photo-electric smoke detector shall be factory installed in the CeilAiR evaporator section on the suction side of the evaporator blower.
Low-Profile Condensate Pump The CeilAiR Low-Profile condensate pump can be factory installed as an option on the following models:
The smoke detector shall be rated for high air velocity applications, and shall shut down the air conditioner upon sensing smoke in the return air stream.
OHS-012/040-AS, AHU, AR, W, G & C
Firestat
Factory Installed Low-Profile Condensate Pump In-Pan Condensate Pump The CeilAiR In-Pan condensate pump can be factory installed as an option in the following models:
The air conditioner shall be provided with a factory wired and mounted firestat. The firestat shall shut down the air conditioner upon sensing a high return air temperature.
Compressor Sound Jackets (Air Cooled 0°F OHS-()-AS, and Water/Glycol Cooled Only!)
Remote Water Detectors Single (one) - Spot Type Detector:
Quantity 1(one) remote spot type
3-13
A 20 Ft. in length remote strip/cable type water/leak detector shall be factory provided for remote field installation. In addition to the 20 ft. cable, a 24V power water detector power module shall require field mounting and wiring to factory provided terminal connection. Upon sensing a water leak, the normally closed water detector control circuit shall open, thereby shutting down the air conditioner's water producing operations.
Air Technology Systems, Inc.
Each compressor shall be provided with a factory installed acoustical sound jacket. Each sound jacket shall have a snap closure system for ease of removing and reinstallation during
Optional Features -
Main Power - Electric Non-Fused Service Switch The main power service switch shall be the NEMA 3R or NEMA-12 nonfused type, depending on the OHS model selected. The disconnect switch shall have a lockable handle. (Note: Field installed main power service switches shall be the standard option, however, switches can be optionally factory mounted on select CeilAiR systems. Factory mounting of disconnect switches is not available on models OHS-012, 018, 024 & 032-AS incorporating the "Ducted" Evaporator Connection option.)
Refrigerant Lines w/ Quick Disconnects (AHU/RCU-O Systems Only!)
Each refrigerant circuit shall be supplied with factory assembled, soft-copper refrigerant line set 50 ft. in length complete with quick disconnect couplings and schraeder service ports. The quick disconnect couples shall be industrial grade, self-sealing, reusable type couplings. Suction lines shall be insulated, liquid lines shall be uninsulated.
2) A backup DX compressorized refrigerant circuit. Remote Liquid Chiller (by others)
A Free-Cooling cycle shall be provided to take advantage of low ambient air temperature conditions to provide compressor-less cooling.
Alternate Water Source Cooling Coil
Pump (by others) Flow Switch
AWS Control Valve
FS
Alternate Water Source Aqua-Stat T
Remote Air Cooled Condenser Scroll Compressor
Flooded Head Pressure Control Valve Relief Valve
Refrigerant Reclaim Port Receiver
When outdoor temperatures are sufficiently low (setpoint adjustable), source coolant shall be diverted from the DX - Water or Glycol Cooled refrigerant condenser to a chilled water/glycol coil (free-cooling coil & control valve). The drycooler capacity shall be increased by reversing the typical drycooler fan(s) cycling sequence of operation to provide the maximum cooling effect for the coolant solution. The free-cooling coil shall be closely sized to match the refrigerant cooling capacity to increase the number of hours that the system can operate in the free-cooling mode, thereby increasing the operating savings of the installation.
LP
HP
Sight Glass
DX - Cooling Coil Feeler Bulb
Solenoid Valve Refrigerant Drier / Strainer
Expansion Valve
When chilled water is available, the system shall operate as a chilled water unit, without the compressor operating. When the water temperature is too high, or the water flow rate is not sufficient, the air conditioner shall automatically switch to the DX compressorized refrigerant operation.
- Guide Specifications
For Water/Glycol systems that require entering condenser water temperatures from 65°F to 45°F, the system shall be provided with a factory installed in-line liquid refrigerant receiver to help reduce the negative effect the low condenser source can have on the evaporator. A compressor crankcase heater shall also be provided standard with this option. (Compressor Sound Jackets are not available with this option due to the crankcase heater).
Free-Cooling Option (Water/Glycol Economizer Coil)
1) A chilled water / glycol circuit (AWS coil & control valve);
Equalizer Line
Low Entering Condenser Water Kit
ENERGY $AVING COOLING OPTIONS
Optional Features
maintenance. Each sound jacket shall have a Noise Reduction Coefficient NRC of 85 per ASTM C-423 and a Sound Transmission Loss STC of 11 per ASTM E-90.
Guide Specifications
Alternate Water Source (Chilled Water by "Day" and DX-Backup by "Night")
An Alternate Water Source cooling cycle shall be provided to utilize building chilled water supply when available as the primary cooling cycle with DX - Air Cooled refrigerant cooling as a backup. The air conditioner shall have two cooling systems:
Air Technology Systems, Inc.
3-14
Performance Data -
Equipment Schedule Data
Performance Data
Performance Data Index MODEL TYPE ........................................... page
DX - Air Cooled
DX with Free-Cooling
Self-Contained Air Cooled:
Self-Contained Glycol Cooled w/ FC:
• 1-3 Ton, models OHS-012/040-AS.................................... 4-2/3
• 1-5 Ton, models OHS-012/060-G-FC............................ 4-17/19 • 4-10 Ton, models OHS-048/120-DG-FC........................ 4-20/21
Split Air Cooled Remote w/ Condenser:
-
• 1-5 Ton, models OHS-012/060-AR.................................... 4-2/3 • 4-10 Ton, models OHS-048/120-DAR.................................. 4-4
Self-Contained Water Cooled w/ FC: • 1-5 Ton, models OHS-012/060-W-FC............................ 4-22/23 • 4-10 Ton, models OHS-048/120-DW-FC....................... 4-24/25
Index
Split Air Cooled Air Handling w/ Condensing Unit: • 1-5 Ton, models OHS-012/060-AHU.................................... 4-5 • 4-10 Ton, models OHS-048/120-DAHU................................ 4-6
DX with Alternate Water Source
Air Technology Systems, Inc DX - Water Cooled
Alternate Water Source:
Self-Contained Water Cooled:
• 1-5 Ton, models OHS-012/060-W........................................ 4-7 • 4-10 Ton, models OHS-048/120-DW................................... 4-8
• 1-5 Ton, models OHS-012/060-( )-AWS............................. 4-26 • 4-10 Ton, models OHS-048/120-D()-AWS.......................... 4-27 • 42°F / 50°F EWT Performance Data................................... 4-28
DX - Glycol Cooled Self-Contained Glycol Cooled: • 1-5 Ton, models OHS-012/060-G......................................... 4-9 • 4-10 Ton, models OHS-048/120-DG.................................. 4-10
Chilled Water Chilled Water Air Handlers: • 1-3 Ton, models OHS-012/040-C.................................. 4-11/12 • 4-10 Ton, models OHS-048/120-C................................ 4-13/14 • 42°F EWT Performance Data............................................. 4-15 • 50°F EWT Performance Data............................................. 4-16
4-1
Air Technology Systems, Inc.
Air Cooled -
012-AS/AR
018-AS/AR
024-AS/AR
032-AS/AR
040-AS/AR
048-AR
060-AR
NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH 13,985
19,465
25,740
32,770
35,800
59,970
65,975
10,585
15,235
19,470
23,430
27,950
47,685
52,435
Total
12,710
18,000
23,600
30,000
32,650
55,010
60,470
Sensible
10,645
15,400
19,025
22,920
27,430
46,960
51,630
Total
12,000
17,160
22,465
28,500
31,050
52,400
57,580
Sensible
10,405
15,100
18,580
22,400
26,690
46,020
50,590
Total
13,425
18,860
24,600
31,320
34,700
57,680
63,350
Sensible
11,840
16,990
20,900
24,905
30,900
52,080
57,325
Total
12,270
17,490
23,030
28,895
32,080
53,415
58,620
Sensible
11,385
16,400
20,500
23,940
29,650
50,250
55,285
Total
11,585
16,665
22,000
27,400
30,530
50,875
55,790
Sensible
11,110
16,065
20,060
23,600
28,990
49,180
54,080
75°FDB/62.5°FWB, 50% RH
72°FDB/60°FWB, 50% RH
80°FDB/65°FWB, 45% RH
75°FDB/61°FWB, 45% RH
72°FDB/58.5°FWB, 45% RH
Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V
17,135 (5.0)
17,135 (5.0)
17,135 (5.0)
17,425 (5.1)
17,955 (5.3)
37,350 (10.9)
38,900 (11.4)
@ 230V
18,840 (5.5)
18,840 (5.5)
18,840 (5.5)
19,130 (5.6)
19,660 (5.8)
43,140 (12.6)
44,690 (13.1)
@ 460V
17,355 (5.1)
17,355 (5.1)
17,355 (5.1)
17,645 (5.2)
18,175 (5.3)
37,350 (10.9)
38,900 (11.4)
@ 277/480V
18,065 (5.3)
18,065 (5.3)
18,065 (5.3)
18,355 (5.4)
18,885 (5.5)
38,835 (11.4)
40,385 (11.8)
11,390
17,030
21,190
25,650
30,920
49,310
54,210
HOT GAS REHEAT BTU/H
HOT WATER REHEAT / HEAT - Reheat rated @ 180°F Entering Water Temperature, EAT = 72°F DB BTU/H
20,690
32,420
34,880
50,360
55,320
97,140
111,220
GPM
1
2
2
3
3
4
5
Pressure Drop, ft. wg Control
0.1
0.3
0.3
0.3
0.3
0.4
0.6
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized 60,000
STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72°F DB BTU/H (nominal) Condensate (lb/hr) Control
12,000
18,000
24,000
32,000
40,000
48,000
13
19
25
34
42
50
63
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized
Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) Std Control
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
4-10, (3.4)
4-10, (3.4)
Cycling
Cycling
Cycling
Cycling
Cycling
Cycling
Cycling
1/4 Hp
1/4 Hp
1/3 Hp
1/2 Hp
1 Hp
1-1/2 Hp
- Air Cooled (1 to 5 ton Systems)
Total Sensible
Performance Data
OHS Model
1 to 5 Ton "OHS" (Single Compressor), Self-Contained & Split
Evaporator Blower / Motor - DWDI Centrifugal Horsepower
1/4 Hp
CFM @ ext. st. press.
500 @ 0.3"
750 @ 0.3"
900 @ 0.3"
1,000 @ 0.3"
1,415 @ 0.3"
2,200 @ 0.5"
2,500 @ 0.5"
Std. Drive Method
Direct Driven
Direct Driven
Direct Driven
Direct Driven
Direct Driven
Belt Driven
Belt Driven
Continued on next page
Air Technology Systems, Inc.
4-2
Air Cooled Performance Data
OHS Model
1 to 5 Ton "OHS" (Single Compressor), Self-Contained & Split
012-AS/AR
018-AS/AR
024-AS/AR
032-AS/AR
040-AS/AR
048-AR
060-AR
NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) Evaporator Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2)
3/ 2.1
3/ 2.1
3/ 2.1
3/ 2.8
3/ 2.8
4/ 5.0
4/ 5.0 Scroll, (1)
Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Recip., (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Watts - Input
Type, (Qty.)
1,405
1,614
2,092
2,711
2,842
4,415
4,959
Tot. Heat of Rej. (BTU/H)
17,595
24,260
31,480
40,500
43,830
70,080
77,395
20x20, (1)
20x20, (1)
20x20, (1)
20x20, (1)
20x20, (1)
20x16, (2)
20x16, (2)
Filters - 1" deep throwaway Nom. Size (in.), (Qty.)
Connection Sizes - Copper, (Please refer to CeilAiR IOM Manual for proper interconnecting refrigerant line sizing.) Refrigerant: (OHS-012/060-()AR only)
- Air Cooled (1 to 5 ton Systems)
Liquid Line, (Qty.)
3/8" OD, (1)
3/8" OD, (1)
3/8" OD, (1)
1/2" OD (1)
1/2" OD (1)
1/2" OD (1)
1/2" OD (1)
Hot Gas Line, (Qty.)
1/2" OD, (1)
1/2" OD, (1)
5/8" OD, (1)
5/8" OD (1)
7/8" OD (1)
7/8" OD (1)
7/8" OD (1)
Condensate Drain
7/8" OD
7/8" OD
7/8" OD
7/8" OD
7/8" OD
3/4" FPT
3/4" FPT
Humidifier Inlet
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Wt. (OHS-()-AS)
210 lbs
215 lbs
220 lbs
255 lbs
265 lbs
N/A
N/A
Approx. Wt. (OHS-()-AR)
160 lbs
165 lbs
170 lbs
205 lbs
215 lbs
370 lbs
380 lbs
Air Cooled Condenser Data - (Self Contained)
Air Technology Systems, Inc OHS Model @ 95°F Amb.
012-AS
018-AS
024-AS
032-AS
040-AS
048
060
Integral Centrifugal Blower, Air Cooled Condenser Data for Self-Contained Model OHS-( )-AS Condenser Blower Data
750 @ 0.3"
1,400 @ 0.3"
1,400 @ 0.3"
2,000 @ 0.3"
2,000 @ 0.3"
N/A
N/A
Motor Horsepower
CFM @ e.s.p
1/3 Hp.
1/2 Hp.
1/2 Hp.
1/2 Hp.
1/2 Hp.
N/A
N/A
Drive Method
Direct
Direct
Direct
Direct
Direct
N/A
N/A
4 / 2.1
4 / 2.1
4 / 2.1
4 / 2.8
4 / 2.8
N/A
N/A
0°F
0°F
0°F
0°F
0°F
N/A
N/A
MotorSpeed
MotorSpeed
MotorSpeed
MotorSpeed
MotorSpeed
N/A
N/A
Condenser Coil Rows/Face Area (ft2) Low Ambient Control Std. Minimum Op. Amb. Head Pressure Method
Note: Compressor is integral to the OHS-( )-AS Self-Contained Unit. Please refer to the SATS Heat Rejection Engineering Manual for specification and performance data on Remote Outdoor and Indoor Air Cooled Condensers used with OHS-( )-()AR Split Systems.
4-3
Air Technology Systems, Inc.
Air Cooled -
4 to 10 Ton "OHS" (Dual Compressors) ( )-048-DAR
( )-072-DAR
( )-084-DAR
( )-120-DAR
NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH Total
53,740
73,870
92,065
130,435
Sensible
40,860
62,110
71,070
98,030
75°FDB/62.5°FWB, 50% RH Total
49,250
67,550
83,980
119,590
Sensible
40,290
61,525
70,840
96,230
72°FDB/60°FWB, 50% RH Total
46,950
64,275
79,760
113,380
Sensible
39,480
60,215
69,565
94,580
80°FDB/65°FWB, 45% RH Total
51,610
70,730
87,660
124,890
Sensible
44,310
68,085
79,060
106,480
75°FDB/61°FWB, 45% RH Total
47,860
65,590
80,770
115,540
Sensible
42,830
64,070
76,215
102,850
Total
45,620
62,750
76,660
109,955
Sensible
42,040
61,910
73,710
100,920
72°FDB/58.5°FWB, 45% RH
ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V/460V
36,810 (10.9)
38,900 (11.4)
40,510 (11.9)
43,580 (12.8)
@ 230V
42,600 (12.5)
44,690 (13.1)
46,300 (13.6)
49,370 (14.5)
@ 480V
38,295 (11.2)
40,385 (11.8)
41,995 (12.3)
45,065 (13.2)
21,150
32,300
37,190
50,520 130,500
HOT GAS REHEAT BTU/H
HOT WATER REHEAT / HEAT - Reheat rated @ 180°F Entering Water Temperature, EAT = 72°F DB BTU/H
50,360
97,880
99,830
GPM
3
3
3
10
0.3
0.3
0.3
2.2
Motorized
Motorized
Motorized
Motorized
48,000
72,000
90,000
120,000
50
75
94
125
Motorized
Motorized
Motorized
Motorized
Pressure Drop, ft. wg Control
STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72°F DB BTU/H (nominal) Condensate (lbs/hr) Control
Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) Std Control
4-10, (3.4)
4-15, (5.1)
4-15, (5.1)
4-15, (5.1)
Cycling
Cycling
Cycling
Cycling
Evaporator Blower / Motor - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower CFM @ ext. st. press. Drive Method
3/4 Hp
1-1/2 Hp
2 Hp
3 Hp
1,800 @ 0.5"
3,000 @ 0.5"
3,350 @ 0.5"
4,400 @ 0.5"
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Evaporator Coil - Aluminum Fin, Copper Tube Rows Face Area (Ft2)
3
4
4
4
4.1
6.7
6.7
10 Scroll, (2)
Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Scroll, (2)
Scroll, (2)
Scroll, (2)
Watts Input (per compressor)
Type, (Qty.)
2,054
2,797
3,848
4,959
Total Heat of Rejection, (BTU/H)
63,270
86,645
110,250
153,440
16x20, (2)
20x20, (2)
20x20, (2)
24x24, (2)
1/2" OD, (2)
Filters - 1" deep throwaway Nominal Size (in.), (Qty.)
Connection Sizes - Copper, (Please refer to CeilAiR IOM Manual for proper interconnecting refrigerant line sizing.) Refrigerant: Liquid Line, (Qty.)
3/8" OD, (2)
1/2" OD, (2)
1/2" OD, (2)
Hot Gas Line, (Qty.)
5/8" OD, (2)
5/8" OD, (2)
7/8" OD, (2)
7/8" OD, (2)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
1/4" OD
1/4" OD
1/4" OD
1/4" OD
450 lbs
510 lbs
580 lbs
Condensate Drain, (w/ In-Pan Pump) Humidifier Inlet
- Air Cooled (4 to 10 Ton, DUAL Compressor)
Reheat/Heat - Performance Capacities Include Motor Heat, (Optional)
Performance Data
OHS Model
Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight
420 lbs
Air Technology Systems, Inc.
4-4
Air Cooled AHU/RCU Performance Data
OHS Model
012-AHU
018-AHU
1 to 5 Ton "OHS"
024-AHU
032-AHU
040-AHU
048-AHU
060-AHU
NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH Total
13,985
19,465
25,740
32,940
36,505
59,970
65,975
Sensible
10,585
15,235
19,470
24,595
30,065
47,685
52,435
Total
12,710
18,000
23,600
30,355
33,750
55,010
60,470
Sensible
10,645
15,400
19,025
24,235
29,300
46,960
51,630
Total
12,000
17,160
22,465
29,035
32,320
52,400
57,580
Sensible
10,405
15,100
18,580
23,680
28,500
46,020
50,590
Total
13,425
18,860
24,600
31,670
35,120
57,680
63,350
Sensible
11,840
16,990
20,900
27,560
33,385
52,080
57,325
Total
12,270
17,490
23,030
29,500
32,790
53,415
58,620
Sensible
11,385
16,400
20,500
26,251
31,530
50,250
55,285
Total
11,585
16,665
22,000
28,220
31,410
50,875
55,790
Sensible
11,110
16,065
20,060
25,570
30,525
49,180
54,080
75°FDB/62.5°FWB, 50% RH
72°FDB/60°FWB, 50% RH
80°FDB/65°FWB, 45% RH
75°FDB/61°FWB, 45% RH
72°FDB/58.5°FWB, 45% RH
Air Cooled AHU/RCU (1 to 5 ton Systems)
Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V
17,135 (5.0)
17,135 (5.0)
17,135 (5.0)
17,425 (5.1)
17,955 (5.3)
37,350 (10.9)
38,900 (11.4)
@ 230V
18,840 (5.5)
18,840 (5.5)
18,840 (5.5)
19,130 (5.6)
19,660 (5.8)
43,140 (12.6)
44,690 (13.1)
Air Technology Systems, Inc @ 460V
17,355 (5.1)
17,355 (5.1)
17,355 (5.1)
17,645 (5.2)
18,175 (5.3)
37,350 (10.9)
38,900 (11.4)
@ 277/480V
18,065 (5.3)
18,065 (5.3)
18,065 (5.3)
18,355 (5.4)
18,885 (5.5)
38,835 (11.4)
40,385 (11.8) 111,220
HOT WATER REHEAT / HEAT - Reheat rated @ 180°F Entering Water Temperature, EAT = 72°F DB BTU/H
20,690
32,420
34,880
50,360
55,320
97,140
GPM
1
2
2
3
3
4
5
0.1
0.3
0.3
0.3
0.3
0.4
0.6
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized 60,000
Pressure Drop, ft. wg Control
STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72°F DB BTU/H (nominal) Condensate (lb/hr) Control
12,000
18,000
24,000
32,000
40,000
48,000
13
19
25
34
42
50
63
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized
Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) Std Control
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
4-10, (3.4)
4-10, (3.4)
Cycling
Cycling
Cycling
Cycling
Cycling
Cycling
Cycling
Evaporator Blower / Motor - DWDI Centrifugal 1/4 Hp
1/4 Hp
1/4 Hp
1/3 Hp
1/2 Hp
1 Hp
1-1/2 Hp
CFM @ ext. st. press.
Horsepower
500 @ 0.3"
750 @ 0.3"
900 @ 0.3"
1,000 @ 0.3"
1,415 @ 0.3"
2,200 @ 0.5"
2,500 @ 0.5"
Std. Drive Method
Direct Driven
Direct Driven
Direct Driven
Direct Driven
Direct Driven
Belt Driven
Belt Driven
Opt. Drive Method
Belt-Driven
Belt-Driven
Belt-Driven
Belt-Driven
Belt-Driven
N/A
N/A
3/ 2.1
3/ 2.1
3/ 2.1
3/ 2.8
3/ 2.8
4/ 5.0
4/ 5.0
20x20, (1)
20x20, (1)
20x20, (1)
20x20, (1)
20x20, (1)
20x16, (2)
20x16, (2)
Evaporator Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2) Filters - 1" deep throwaway Nom. Size (in.), (Qty.)
Connection Sizes - Copper, (Please refer to CeilAiR IOM Manual for proper interconnecting refrigerant line sizing.) Refrigerant: Suction, (Qty.)
5/8" OD, (1)
3/4" OD, (1)
3/4" OD, (1)
3/4" OD (1)
7/8" OD (1)
7/8" OD (1)
7/8" OD (1)
Liquid Line, (Qty.)
3/8" OD, (1)
3/8" OD, (1)
3/8" OD, (1)
1/2" OD (1)
1/2" OD (1)
1/2" OD (1)
1/2" OD (1)
Condensate Drain
7/8" OD
7/8" OD
7/8" OD
7/8" OD
7/8" OD
3/4" FPT
3/4" FPT
Humidifier Inlet
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
120 lbs
155 lbs
165 lbs
270 lbs
280 lbs
Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Wt.
120 lbs
120 lbs
Please refer to the SATS Heat Rejection Engineering Manual for specification and performance data on Remote Outdoor and Indoor Air Cooled Condensers
4-5
Air Technology Systems, Inc.
Air Cooled DAHU/DRCU - 4 to 10 Ton "OHS" (Dual) ( )-048-DAHU
( )-072-DAHU
( )-084-DAHU
( )-120-DAHU
NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH Total
53,740
73,870
92,065
130,435
Sensible
40,860
62,110
71,070
98,030
75°FDB/62.5°FWB, 50% RH Total
49,250
67,550
83,980
119,590
Sensible
40,290
61,525
70,840
96,230
Total
46,950
64,275
79,760
113,380
Sensible
39,480
60,215
69,565
94,580
72°FDB/60°FWB, 50% RH
80°FDB/65°FWB, 45% RH 51,610
70,730
87,660
124,890
44,310
68,085
79,060
106,480
Total
47,860
65,590
80,770
115,540
Sensible
42,830
64,070
76,215
102,850
Total
45,620
62,750
76,660
109,955
Sensible
42,040
61,910
73,710
100,920
75°FDB/61°FWB, 45% RH
72°FDB/58.5°FWB, 45% RH
Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V/460V
36,810 (10.9)
38,900 (11.4)
40,510 (11.9)
43,580 (12.8)
@ 230V
42,600 (12.5)
44,690 (13.1)
46,300 (13.6)
49,370 (14.5)
@ 480V
38,295 (11.2)
40,385 (11.8)
41,995 (12.3)
45,065 (13.2) 130,500
HOT WATER REHEAT / HEAT - Reheat rated @ 180°F Entering Water Temperature, EAT = 72°F DB BTU/H
50,360
97,880
99,830
GPM
3
3
3
10
0.3
0.3
0.3
2.2
Motorized
Motorized
Motorized
Motorized 120,000
Pressure Drop, ft. wg Control
STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72°F DB BTU/H (nominal)
48,000
72,000
90,000
50
75
94
125
Motorized
Motorized
Motorized
Motorized
Condensate (lbs/hr) Control
Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) Std Control
4-10, (3.4)
4-15, (5.1)
4-15, (5.1)
4-15, (5.1)
Cycling
Cycling
Cycling
Cycling
Evaporator Blower / Motor - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower CFM @ ext. st. press. Drive Method
3/4 Hp
1-1/2 Hp
2 Hp
3 Hp
1,800 @ 0.5"
3,000 @ 0.5"
3,350 @ 0.5"
4,400 @ 0.5"
Belt Driven
Belt Driven
Belt Driven
Belt Driven
3/ 4.1
4/ 6.7
4/ 6.7
4/ 10.0
16x20, (2)
20x20, (2)
20x20, (2)
24x24, (2)
Evaporator Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2) Filters - 1" deep throwaway Nominal Size (in.), (Qty.)
Connection Sizes - Copper, (Please refer to CeilAiR IOM Manual for proper interconnecting refrigerant line sizing.) Refrigerant: Suction Line, (Qty.)
3/4" OD, (2)
7/8" OD, (2)
7/8" OD, (2)
7/8" OD, (2)
Liquid Line, (Qty.)
3/8" OD, (2)
1/2" OD, (2)
1/2" OD, (2)
1/2" OD, (2)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
1/4" OD
1/4" OD
1/4" OD
1/4" OD
350 lbs
410 lbs
480 lbs
Condensate Drain, (w/ In-Pan Pump) Humidifier Inlet
Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight
320 lbs
- Air Cooled DAHU/DRCU (4-10 Ton, DUAL Compressor)
Total Sensible
Performance Data
OHS Model
Please refer to the SATS Heat Rejection Engineering Manual for specification and performance data on Remote Outdoor and Indoor Air Cooled Condensing Units
Air Technology Systems, Inc.
4-6
Water Cooled Performance Data
OHS Model
( )-012-W
1 to 5 Ton "OHS"
( )-018-W
( )-024-W
( )-032-W
( )-040-W
( )-048-W
( )-060-W
NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH Total
16,394
21,125
27,990
35,550
39,115
64,250
70,665
Sensible
11,675
16,000
20,455
24,575
29,500
49,240
54,100
Total
14,850
19,345
25,750
32,700
35,830
58,820
64,690
Sensible
11,340
15,625
20,100
24,265
28,800
48,580
53,445
Total
14,000
18,380
24,560
31,150
34,109
56,070
61,650
Sensible
11,050
16,400
19,680
23,775
28,093
47,600
52,345
Total
15,570
20,430
26,840
34,170
37,355
61,635
67,730
Sensible
12,440
17,645
21,825
26,300
31,600
53,560
58,955
Total
14,380
18,950
24,920
31,600
35,120
57,130
62,760
Sensible
12,250
17,040
21,075
25,360
30,560
51,780
56,975
Total
13,620
18,065
23,685
30,060
33,460
54,460
59,795
Sensible
12,010
16,710
20,700
24,820
30,470
50,820
55,910
75°FDB/62.5°FWB, 50% RH
72°FDB/60°FWB, 50% RH
80°FDB/65°FWB, 45% RH
75°FDB/61°FWB, 45% RH
72°FDB/58.5°FWB, 45% RH
Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw)
- Water Cooled (1 to 5 Ton Systems)
@ 208V
17,135 (5.0)
17,135 (5.0)
17,135 (5.0)
17,425 (5.1)
17,955 (5.3)
37,350 (10.9)
38,900 (11.4)
@ 230V
18,840 (5.5)
18,840 (5.5)
18,840 (5.5)
19,130 (5.6)
19,660 (5.8)
43,140 (12.6)
44,690 (13.1)
@ 460V
17,355 (5.1)
17,355 (5.1)
17,355 (5.1)
17,645 (5.2)
18,175 (5.3)
37,350 (10.9)
38,900 (11.4)
@ 277/480V
18,065 (5.3)
18,065 (5.3)
18,065 (5.3)
18,355 (5.4)
18,885 (5.5)
38,835 (11.4)
40,385 (11.8)
12,440
17,690
22,150
27,045
32,425
51,010
56,120
HOT GAS REHEAT BTU/H
HOT WATER REHEAT / HEAT - Reheat rated @ 180°F Entering Water Temperature, EAT = 72°F DB
Air Technology Systems, Inc BTU/H
20,690
32,420
34,880
50,360
55,320
97,140
GPM
1
2
2
3
3
4
5
0.1
0.3
0.3
0.3
0.3
0.4
0.6
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized 60,000
Pressure Drop, ft. wg Control
111,220
STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72°F DB BTU/H (nominal)
Condensate (lb/hr) Control
12,000
18,000
24,000
32,000
40,000
48,000
13
19
25
34
42
50
63
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized
Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) Std Control
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
4-10, (3.4)
4-10, (3.4)
Cycling
Cycling
Cycling
Cycling
Cycling
Cycling
Cycling
Evaporator Blower / Motor - DWDI Centrifugal 1/4 Hp
1/4 Hp
1/4 Hp
1/3 Hp
1/2 Hp
1 Hp
1-1/2 Hp
CFM @ ext. st. press.
Horsepower
500 @ 0.3"
750 @ 0.3"
900 @ 0.3"
1,000 @ 0.3"
1,415 @ 0.3"
2,200 @ 0.5"
2,500 @ 0.5"
Std. Drive Method
Direct Driven
Direct Driven
Direct Driven
Direct Driven
Direct Driven
Belt Driven
Belt Driven
Opt. Drive Method
Belt-Driven
Belt-Driven
Belt-Driven
Belt-Driven
Belt-Driven
N/A
N/A
3/ 2.1
3/ 2.1
3/ 2.8
3/ 2.8
4/ 5.0
4/ 5.0
Evaporator Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2)
3/ 2.1
Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.)
Recip., (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Watts Input
1,245
1,239
1,633
2,118
2,222
3,451
3,867
Water Cooled Condenser Data - Based on 0% glycol solution Tot Heat of Reject.
18,900 Btu/h
24,350 Btu/h
32,145 Btu/h
41,325 Btu/h
44,865 Btu/h
70,600 Btu/h
77,890 Btu/h
GPM @ 85°F EWT
3.8 GPM
4.9 GPM
6.4 GPM
8.3 GPM
9.0 GPM
14.1 GPM
15.6 GPM
Total Unit PD (Ft. of H2O)
10.0 Ft.
6.5 Ft.
11.0 Ft.
11.7 Ft.
13.9 Ft.
16.5 Ft.
22.7 Ft.
Type
Coaxial
Coaxial
Coaxial
Coaxial
Coaxial
Coaxial
Coaxial
3/4" FPT
Head Pressure Control Standard Control - 2-way, 150 psig Water Regulating Valve, (factory installed) Optional Control - Refer to the Optional Guide Specifications Section for High Pressure and 3-way Valve Options! Connection Sizes - Copper Condensate Drain
7/8" OD
7/8" OD
7/8" OD
7/8" OD
7/8" OD
3/4" FPT
Humidifier Inlet
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
Source Water In/Out
5/8" OD
7/8" OD
7/8" OD
7/8" OD
7/8" OD
1-1/8" OD
1-1/8" OD
20x20 (1)
20x20, (1)
20x20, (1)
20x20, (1)
20x20, (1)
20x16, (2)
20x16, (2)
210 lbs
245 lbs
260 lbs
395 lbs
405 lbs
Filters - 1" deep throwaway Nom. Size (in.), (Qty.)
Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight
180 lbs
200 lbs
Please refer to the SATS Heat Rejection Engineering Manual for specification and performance data on Remote Outdoor and Indoor Air Cooled Condensing Units
4-7
Air Technology Systems, Inc.
Water Cooled -
OHS-048-DW
OHS-072-DW
OHS-084-DW
OHS-120-DW
NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH Total
57,200
79,165
98,760
139,210
Sensible
42,320
63,770
73,735
101,715
Total
52,580
72,510
90,475
127,660
Sensible
41,620
63,225
72,760
100,040
75°FDB/62.5°FWB, 50% RH
72°FDB/60°FWB, 50% RH Total
50,100
69,035
86,090
121,610
Sensible
40,820
62,045
71,400
98,010
80°FDB/65°FWB, 45% RH Total
54,890
75,840
94,300
133,265
Sensible
45,740
70,425
81,160
110,080
Total
50,960
70,200
87,050
123,460
Sensible
44,180
67,685
78,670
106,285
75°FDB/61°FWB, 45% RH
72°FDB/58.5°FWB, 45% RH Total
48,620
66,785
82,760
117,645
Sensible
43,390
65,220
77,320
104,340
Performance Data
OHS Model
4 to 10 Ton "OHS" (Dual)
Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) @ 208V/460V
36,810 (10.9)
38,900 (11.4)
40,510 (11.9)
43,580 (12.8)
@ 230V
42,600 (12.5)
44,690 (13.1)
46,300 (13.6)
49,370 (14.5)
@ 480V
38,295 (11.2)
40,385 (11.8)
41,995 (12.3)
45,065 (13.2)
21,850
33,195
38,200
52,520 130,500
HOT GAS REHEAT BTU/H
HOT WATER REHEAT / HEAT - Reheat rated @ 180°F Entering Water Temperature, EAT = 72°F DB BTU/H
50,360
97,880
99,830
GPM
3
3
3
10
0.3
0.3
0.3
2.2
Motorized
Motorized
Motorized
Motorized
48,000
72,000
90,000
120,000
50
75
94
125
Motorized
Motorized
Motorized
Motorized
4-10, (3.4)
4-15, (5.1)
4-15, (5.1)
4-15, (5.1)
Cycling
Cycling
Cycling
Cycling
Pressure Drop, ft. wg Control
STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72°F DB BTU/H (nominal) Condensate (lbs/hr) Control
Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) Std Control
Evaporator Blower / Motor - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower
3/4 Hp
1-1/2 Hp
2 Hp
3 Hp
1,800 @ 0.5"
3,000 @ 0.5"
3,350 @ 0.5"
4,400 @ 0.5"
Belt Driven
Belt Driven
Belt Driven
Belt Driven
3/ 4.1
4/ 6.7
4/ 6.7
4/ 10.0
Scroll, (2)
Scroll, (2)
Scroll, (2)
Scroll, (2)
1,603
2,182
2,973
3,867
63,525 Btu/h
87,405 Btu/h
110,770 Btu/h
154,060 Btu/h
12.7 GPM
17.5 GPM
22.2 GPM
30.8 GPM
Total Unit Pressure Drop (Ft. of H2O)
12.4 Ft.
17.9 Ft.
12.4 Ft.
25.7 Ft.
Type
Coaxial
Coaxial
Coaxial
Coaxial
3/4" FPT, (1/2"OD)
CFM @ ext. st. press. Drive Method Evaporator Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2)
Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.) Watt Input (per compressor)
Water Cooled Condenser Data - Based on 0% glycol solution Total Heat of Reject. GPM @ 85°F EWT
- Water Cooled (4 to 10 Ton Systems)
ELECTRIC REHEAT / HEAT - BTU/H (Kw)
Head Pressure Control Standard Control - 2-way, 150 psig Water Regulating Valve, (factory installed) Optional Control - Refer to the Optional Guide Specifications Section for High Pressure and 3-way Valve Options! Connection Sizes - Copper Condensate Drain, (w/ In-Pan Pump) Humidifier Inlet Source Water Inlet/Outlet
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1-1/8" OD
1-1/8" OD
1-3/8" OD
1-3/8" OD
16x20, (2)
20x20, (2)
20x20, (2)
24x24, (2)
470 lbs
550 lbs
625 lbs
Filters - 1" deep throwaway Nominal Size (in.), (Qty.)
Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight
440 lbs
Air Technology Systems, Inc.
4-8
Glycol Cooled Performance Data
OHS Model
( )-012-G
1 to 5 Ton "OHS"
( )-018-G
( )-024-G
( )-032-G
( )-040-G
( )-048-G
( )-060-G
NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH Total
13,390
18,960
25,090
32,000
34,910
57,150
62,670
Sensible
10,435
15,060
19,160
23,085
27,500
46,565
51,120
Total
12,200
17,541
22,975
28,175
31,855
52,325
57,335
Sensible
10,450
15,194
18,710
23,700
26,975
45,920
50,410
Total
11,510
16,720
21,900
27,800
30,540
49,770
54,525
Sensible
10,210
14,880
18,275
22,045
26,455
44,970
49,370
Total
12,900
18,375
23,990
30,580
33,840
54,920
60,120
Sensible
11,650
16,800
20,535
24,540
30,475
51,075
56,140
Total
11,780
17,035
22,430
28,175
31,290
50,785
55,550
Sensible
11,171
16,200
20,195
23,700
29,270
49,080
53,900
Total
11,120
16,235
21,355
27,065
29,770
48,360
52,680
Sensible
10,875
15,855
19,760
23,375
28,610
47,710
51,930
75°FDB/62.5°FWB, 50% RH
72°FDB/60°FWB, 50% RH
80°FDB/65°FWB, 45% RH
75°FDB/61°FWB, 45% RH
72°FDB/58.5°FWB, 45% RH
Reheat/Heat - Performance Capacities Include Motor Heat, (Optional)
- Glycol Cooled (1 to 5 Ton Systems)
ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V
17,135 (5.0)
17,135 (5.0)
17,135 (5.0)
17,425 (5.1)
17,955 (5.3)
37,350 (10.9)
38,900 (11.4)
@ 230V
18,840 (5.5)
18,840 (5.5)
18,840 (5.5)
19,130 (5.6)
19,660 (5.8)
43,140 (12.6)
44,690 (13.1)
@ 460V
17,355 (5.1)
17,355 (5.1)
17,355 (5.1)
17,645 (5.2)
18,175 (5.3)
37,350 (10.9)
38,900 (11.4)
@ 277/480V
18,065 (5.3)
18,065 (5.3)
18,065 (5.3)
18,355 (5.4)
18,885 (5.5)
38,835 (11.4)
40,385 (11.8)
11,290
16,845
20,895
25,295
30,555
48,220
52,930
HOT GAS REHEAT BTU/H
Air Technology Systems, Inc HOT WATER REHEAT / HEAT - Reheat rated @ 180°F Entering Water Temperature, EAT = 72°F DB BTU/H
20,690
32,420
34,880
50,360
55,320
97,140
GPM
1
2
2
3
3
4
5
0.1
0.3
0.3
0.3
0.3
0.4
0.6
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized 60,000
Pressure Drop, ft. wg
Control
111,220
STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72°F DB BTU/H (nominal) Condensate (lb/hr) Control
12,000
18,000
24,000
32,000
40,000
48,000
13
19
25
34
42
50
63
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized
Motorized
Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) Std Control
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
4-10, (3.4)
4-10, (3.4)
Cycling
Cycling
Cycling
Cycling
Cycling
Cycling
Cycling
Evaporator Blower / Motor - DWDI Centrifugal 1/4 Hp
1/4 Hp
1/4 Hp
1/3 Hp
1/2 Hp
1 Hp
1-1/2 Hp
CFM @ ext. st. press.
Horsepower
500 @ 0.3"
750 @ 0.3"
900 @ 0.3"
1,000 @ 0.3"
1,415 @ 0.3"
2,200 @ 0.5"
2,500 @ 0.5"
Std. Drive Method
Direct Driven
Direct Driven
Direct Driven
Direct Driven
Direct Driven
Belt Driven
Belt Driven
Opt. Drive Method
Belt-Driven
Belt-Driven
Belt-Driven
Belt-Driven
Belt-Driven
N/A
N/A
3/ 2.1
3/ 2.1
3/ 2.8
3/ 2.8
4/ 5.0
4/ 5.0
Evaporator Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2)
3/ 2.1
Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.)
Recip., (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Watts Input
1,442
1,729
2,227
2,882
3,027
4,699
5,290
Glycol Condenser Data - Based on 40% ethylene glycol solution Tot. Heat of Reject.
17,270 Btu/h
23,990 Btu/h
31,305 Btu/h
40,340 Btu/h
43,625 Btu/h
68,360 Btu/h
75,390 Btu/h
GPM @ 110°F EGT
3.8 GPM
5.3 GPM
6.9 GPM
8.9 GPM
9.7 GPM
15.1 GPM
16.7 GPM
Total Unit PD (Ft. of H2O)
10.1 Ft.
7.0 Ft.
11.8 Ft.
12.8 Ft.
15.2 Ft.
18.0 Ft.
24.5 Ft.
Type
Coaxial
Coaxial
Coaxial
Coaxial
Coaxial
Coaxial
Coaxial
3/4" FPT
Head Pressure Control Standard Control - 2-way, 150 psig Glycol Regulating Valve, (factory installed) Optional Control - Refer to the Optional Guide Specifications Section for High Pressure and 3-way Valve Options! Connection Sizes - Copper Condensate Drain
7/8" OD
7/8" OD
7/8" OD
7/8" OD
7/8" OD
3/4" FPT
Humidifier Inlet
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
Source Glycol In/Out
5/8" OD
7/8" OD
7/8" OD
7/8" OD
7/8" OD
1-1/8" OD
1-1/8" OD
20x20, (1)
20x20, (1)
20x20, (1)
20x20, (1)
20x20, (1)
20x16, (2)
20x16, (2)
210 lbs
245 lbs
260 lbs
395 lbs
405 lbs
Filters - 1" deep throwaway Nom. Size (in.), (Qty.)
Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight
4-9
180 lbs
200 lbs
Air Technology Systems, Inc.
Glycol Cooled OHS-048-DG
OHS-072-DG
OHS-084-DG
OHS-120-DG
NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH Total
51,260
70,230
87,445
123,970
Sensible
39,730
61,010
69,465
95,280
75°FDB/62.5°FWB, 50% RH Total
46,840
64,090
79,565
113,045
Sensible
39,230
60,180
69,420
93,920
72°FDB/60°FWB, 50% RH Total
44,600
60,990
75,580
107,490
Sensible
38,400
58,520
68,115
91,925
80°FDB/65°FWB, 45% RH Total
49,150
67,340
83,055
118,680
Sensible
43,340
65,360
77,390
104,065
75°FDB/61°FWB, 45% RH Total
45,500
62,635
76,640
109,590
Sensible
41,840
61,750
73,350
100,420
Total
43,320
59,880
73,150
104,185
Sensible
41,000
59,635
71,130
98,400
72°FDB/58.5°FWB, 45% RH
Performance Data
OHS Model
4 to 10 Ton "OHS" (Dual)
Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) @ 208V/460V
36,810 (10.9)
38,900 (11.4)
40,510 (11.9)
43,580 (12.8)
@ 230V
42,600 (12.5)
44,690 (13.1)
46,300 (13.6)
49,370 (14.5)
@ 480V
38,295 (11.2)
40,385 (11.8)
41,995 (12.3)
45,065 (13.2)
20,595
31,595
36,445
49,310 130,500
HOT GAS REHEAT BTU/H
HOT WATER REHEAT / HEAT - Reheat rated @ 180°F Entering Water Temperature, EAT = 72°F DB BTU/H
50,360
97,880
99,830
GPM
3
3
3
10
0.3
0.3
0.3
2.2
Motorized
Motorized
Motorized
Motorized
48,000
72,000
90,000
120,000
50
75
94
125
Motorized
Motorized
Motorized
Motorized
Pressure Drop, ft. wg Control
STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72°F DB BTU/H (nominal) Condensate (lbs/hr) Control
Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) Std Control
4-10, (3.4)
4-15, (5.1)
4-15, (5.1)
4-15, (5.1)
Cycling
Cycling
Cycling
Cycling
Evaporator Blower / Motor - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower
3/4 Hp
1-1/2 Hp
2 Hp
3 Hp
1,800 @ 0.5"
3,000 @ 0.5"
3,350 @ 0.5"
4,400 @ 0.5"
Belt Driven
Belt Driven
Belt Driven
Belt Driven
3/ 4.1
4/ 6.7
4/ 6.7
4/ 10.0
Scroll, (2)
Scroll, (2)
Scroll, (2)
Scroll, (2)
2,188
2,973
4,103
5,290
61,775 Btu/h
84,385 Btu/h
107,570 Btu/h
149,155 Btu/h
13.7 GPM
18.7 GPM
23.8 GPM
33.0 GPM
Total Unit Pressure Drop (Ft. of H2O)
13.6 Ft.
20.0 Ft.
13.9 Ft.
28.1 Ft.
Type
Coaxial
Coaxial
Coaxial
Coaxial
3/4" FPT, (1/2"OD)
CFM @ ext. st. press. Drive Method Evaporator Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2)
Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.) Watt Input (per compressor)
Glycol Condenser Data - Based on 40% ethylene glycol solution Total Heat of Rejection GPM @ 110°F EGT
- Glycol Cooled (4 to 10 Ton Systems)
ELECTRIC REHEAT / HEAT - BTU/H (Kw)
Head Pressure Control Standard Control - 2-way, 150 psig Glycol Regulating Valves, (factory installed) Optional Control - Refer to the Optional Guide Specifications Section for High Pressure and 3-way Valve Options! Connection Sizes - Copper Condensate Drain, (w/ In-Pan Pump) Humidifier Inlet Source Glycol Inlet/Outlet
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1-1/8" OD
1-1/8" OD
1-3/8" OD
1-3/8" OD
16x20, (2)
20x20, (2)
20x20, (2)
24x24, (2)
470 lbs
550 lbs
625 lbs
Filters - 1" deep throwaway Nominal Size (in.), (Qty.)
Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight
440 lbs
Air Technology Systems, Inc.
4-10
Chilled Water Performance Data
OHS Model
- 1 to 3 Tons "OHS"
OHS-012-C
OHS-018-C
OHS-024-C
OHS-032-C
OHS-040-C
51,990
COOLING CAPACITY - BTU/H @ 45°F EWT, 0% Glycol Solution (@ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH High Flow
Total
22,970
31,090
35,410
40,800
(8°F ∆Tw)
Sens.
15,340
21,440
24,820
28,730
37,670
5.8 / (19.6)
7.8 / (34.0)
8.8 / (43.1)
10.2 / (23.3)
13.0 / (36.8) 48,680
GPM / (pd. Ft.) Med. Flow
Total
21,200
29,050
33,090
38,030
(10°F ∆Tw)
Sens.
14,560
20,520
23,770
27,430
36,100
4.3 / (11.2)
5.8 / (19.8)
6.6 / (25.1)
7.6 / (13.6)
9.7 / (21.5) 45,440
GPM / (pd. Ft.) Low Flow
Total
19,390
26,830
30,910
34,950
(12°F ∆Tw)
Sens.
13,760
19,530
22,770
25,990
34,520
3.3 / (6.8)
4.5 / (12.2)
5.2 / (15.8)
5.8 / (8.3)
7.6 / (13.4) 38,890
GPM / (pd. Ft.) 75°FDB/62.5°FWB, 50% RH High Flow
Total
16,460
22,840
26,110
30,170
(8°F ∆Tw)
Sens.
13,000
18,510
21,500
24,720
32,720
4.2 / (10.7)
5.7 / (19.4)
6.5 / (24.6)
7.6 / (13.4)
9.7 / (21.5) 36,190
GPM / (pd. Ft.) Med. Flow
Total
15,110
21,080
24,380
27,720
(10°F ∆Tw)
Sens.
12,340
17,610
20,590
23,420
31,210
3.1 / (6.0)
4.2 / (11.1)
4.9 / (14.5)
5.6 / (7.6)
7.3 / (12.5) 33,310
GPM / (pd. Ft.)
- Chilled Water (1-3 ton) Systems
Low Flow
Total
13,840
19,420
22,490
25,470
(12°F ∆Tw)
Sens.
11,690
16,700
19,510
22,170
29,510
2.3 / (3.7)
3.3 / (6.8)
3.8 / (8.9)
4.3 / (4.7)
5.6 / (7.6) 32,490
GPM / (pd. Ft.) 72°FDB/60°FWB, 50% RH High Flow
Total
13,510
18,810
21,750
24,930
(8°F ∆Tw)
Sens.
11,700
16,680
19,500
22,240
29,600
3.4 / (7.5)
4.7 / (13.6)
5.5 / (17.8)
6.3 / (9.5)
8.1 / (15.4) 29,590
GPM / (pd. Ft.) Med. Flow
Total
12,390
17,240
19,910
22,830
(10°F ∆Tw)
Sens.
11,080
15,740
18,360
20,970
27,750
2.5 / (4.2)
3.5 / (7.7)
4.0 / (10.0)
4.6 / (5.4)
6.0 / (8.6) 25,970
Air Technology Systems, Inc GPM / (pd. Ft.)
Low Flow
Total
11,120
15,380
17,680
20,240
(12°F ∆Tw)
Sens.
10,300
14,520
16,850
19,280
25,270
1.9 / (2.2)
2.6 / (4.5)
3.0 / (5.7)
3.4 / (3.1)
4.4 / (4.9)
47,370
GPM / (pd. Ft.)
80°FDB/65°FWB, 45% RH High Flow
Total
20,300
27,780
31,800
36,940
(8°F ∆Tw)
Sens.
15,640
22,090
25,710
29,660
39,180
5.1 / (15.7)
6.9 / (27.5)
8.0 / (35.4)
9.2 / (19.5)
11.8 / (30.8) 44,850
GPM / (pd. Ft.) Med. Flow
Total
18,880
26,180
30,070
34,620
(10°F ∆Tw)
Sens.
14,970
21,310
24,830
28,480
37,830
3.8 / (9.1)
5.2 / (16.3)
6.0 / (21.1)
6.9 / (11.5)
9.0 / (18.5) 42,110
GPM / (pd. Ft.) Low Flow
Total
17,570
24,520
28,250
32,270
(12°F ∆Tw)
Sens.
14,340
20,460
23,870
27,250
36,300
2.9 / (5.7)
4.1 / (10.4)
4.7 / (13.4)
5.4 / (7.2)
7.0 / (11.7) 36,630
GPM / (pd. Ft.) 75°FDB/61°FWB, 45% RH High Flow
Total
15,230
21,220
24,400
28,210
(8°F ∆Tw)
Sens.
13,420
19,160
22,330
25,550
33,970
3.8 / (9.3)
5.4 / (17.0)
6.1 / (21.9)
7.0 / (11.8)
9.2 / (19.3) 33,910
GPM / (pd. Ft.) Med. Flow
Total
14,210
19,750
22,720
26,220
(10°F ∆Tw)
Sens.
12,850
18,270
21,260
24,340
32,200
2.9 / (5.4)
4.0 / (9.9)
4.6 / (12.7)
5.3 / (6.9)
6.8 / (11.0) 27,460
GPM / (pd. Ft.) Low Flow
Total
13,040
17,980
20,610
23,830
(12°F ∆Tw)
Sens.
12,130
17,110
19,850
22,790
27,460
2.2 / (3.2)
3.0 / (5.9)
3.5 / (7.6)
4.0 / (4.2)
4.6 / (5.4) 28,360
GPM / (pd. Ft.) 72°FDB/58.5°FWB, 45% RH High Flow
Total
12,650
17,360
19,380
23,310
(8°F ∆Tw)
Sens.
12,140
17,120
19,380
22,900
28,360
3.2 / (6.6)
4.4 / (11.8)
4.9 / (14.4)
5.9 / (8.5)
7.1 / (12.1) 25,700
GPM / (pd. Ft.) Med. Flow
Total
10,780
15,310
17,820
19,440
(10°F ∆Tw)
Sens.
10,780
15,310
17,820
19,440
25,700
2.2 / (3.1)
3.1 / (6.2)
3.6 / (8.1)
3.9 / (4.0)
5.2 / (6.7) 22,870
GPM / (pd. Ft.) Low Flow
Total
9,740
13,810
16,080
17,240
(12°F ∆Tw)
Sens.
9,740
13,810
16,080
17,240
22,870
1.7 / (1.6)
2.3 / (3.7)
2.7 / (4.8)
2.9 / (2.1)
3.9 / (3.9)
GPM / (pd. Ft.)
4-11
Air Technology Systems, Inc.
Chilled Water
OHS-012-C
OHS-018-C
OHS-024-C
OHS-032-C
OHS-040-C
Chilled Water Control Valve - Sized for Medium Flow @ 75°FDB/62.5°FWB EAT Conditions 2-way (standard) - Spring Actuated (Open/Close) Size / (Cv) Valve Pressure Rating Total Unit Pressure Drop
1/2" / (3.5 Cv)
3/4" / (3.5 Cv)
3/4" / (3.7 Cv)
3/4" / (3.7 Cv)
3/4" / (3.7 Cv)
300 psig
300 psig
300 psig
300 psig
300 psig
8.0 Ft.
14.6 Ft.
19.4 Ft.
14.2 Ft.
22.6 Ft.
1/2" / (5.0 Cv)
3/4" / (5.0 Cv)
3/4" / (5.0 Cv)
3/4" / (5.0 Cv)
3/4" / (5.0 Cv)
300 psig
300 psig
300 psig
300 psig
300 psig
7.1 Ft.
12.9 Ft.
17.0 Ft.
11.2 Ft.
17.5 Ft.
4 / 2.1
4 / 2.1
4 / 2.8
4 / 2.8
3-way (optional) - Spring Actuated (Open/Close) Size / (Cv) Valve Pressure Rating Total Unit Pressure Drop
Chilled Water Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2)
4 / 2.1
Evaporator Blower / Motor - DWDI Centrifugal Horsepower
1/4 Hp
1/4 Hp
1/3 Hp
1/2 Hp
500 @ 0.3"
750 @ 0.3"
900 @ 0.3"
1,000 @ 0.3"
1,415 @ 0.3"
Std. Drive Method
Direct Driven
Direct Driven
Direct Driven
Direct Driven
Direct Driven
Opt. Drive Method
Belt-Driven
Belt-Driven
Belt-Driven
Belt-Driven
Belt-Driven
Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V
17,135 (5.0)
17,135 (5.0)
17,135 (5.0)
17,425 (5.1)
17,955 (5.3)
@ 230V
18,840 (5.5)
18,840 (5.5)
18,840 (5.5)
19,130 (5.6)
19,660 (5.8)
@ 460V
17,355 (5.1)
17,355 (5.1)
17,355 (5.1)
17,645 (5.2)
18,175 (5.3)
@ 277/480V
18,065 (5.3)
18,065 (5.3)
18,065 (5.3)
18,355 (5.4)
18,885 (5.5)
50,360
55,320
HOT WATER REHEAT / HEAT - Reheat rated @ 180°F Entering Water Temperature, EAT = 72°F DB BTU/H GPM Pressure Drop, ft. wg Control
20,690
32,420
34,880
1
2
2
3
3
0.1
0.3
0.3
0.3
0.3
Motorized
Motorized
Motorized
Motorized
Motorized
STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72°F DB BTU/H (nominal) Condensate (lb/hr) Control
12,000
18,000
24,000
32,000
40,000
13
19
25
34
42
Motorized
Motorized
Motorized
Motorized
Motorized
Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) Std Control
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
Cycling
Cycling
Cycling
Cycling
Cycling
20x20, (1)
20x20, (1)
20x20, (1)
20x20, (1)
20x20, (1)
7/8" OD
7/8" OD
7/8" OD
7/8" OD
7/8" OD
Filters - 1" deep throwaway Nom. Size (in.), (Qty.)
- Chilled Water (1-3 ton) Systems
1/4 Hp
CFM @ ext. st. press.
Performance Data
OHS Model
- 1 to 3 Tons "OHS"
Connection Sizes - Copper Condensate Drain Humidifier Inlet
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
Chilled Water In/Out
5/8" OD
7/8" OD
7/8" OD
7/8" OD
7/8" OD
125 lbs
160 lbs
170 lbs
Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Wt.
120 lbs
125 lbs
Air Technology Systems, Inc.
4-12
Chilled Water Performance Data
OHS Model
OHS-048-C
4 to 10 Ton "OHS" OHS-060-C
OHS-072-C
OHS-084-C
OHS-120-C
166,850
COOLING CAPACITY - BTU/H @ 45°F EWT, 0% Glycol Solution (@ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH High Flow
Total
83,770
91,130
134,100
144,440
(8°F ∆Tw)
Sensible
59,280
65,250
90,760
98,710
117,880
20.9 / (18.6)
22.8 / (21.9)
33.5 / (46.3)
36.1 / (53.2)
41.8 / (18.6) 154,030
GPM / (pd. Ft.) Med. Flow
Total
77,350
84,830
125,560
135,080
(10°F ∆Tw)
Sensible
56,410
62,390
87,010
94,600
112,150
15.5 / (10.7)
17.1 / (12.7)
25.2 / (27.5)
27.1 / (31.5)
31.0 / (10.7) 139,290
GPM / (pd. Ft.) Low Flow
Total
69,980
77,170
117,370
126,560
(12°F ∆Tw)
Sensible
53,070
58,870
83,420
90,820
105,460
11.7 / (6.4)
13.0 / (7.7)
19.6 / (17.4)
21.2 / (20.1)
23.4 / (6.4) 121,940
GPM / (pd. Ft.) 75°FDB/62.5°FWB, 50% RH High Flow
Total
61,310
67,460
99,080
106,720
(8°F ∆Tw)
Sensible
51,210
56,760
78,510
85,490
101,740
15.4 / (10.6)
17.0 / (12.7)
24.8 / (26.9)
26.8 / (30.8)
30.8 / (10.6) 109,650
GPM / (pd. Ft.) Med. Flow
Total
55,160
61,100
93,260
100,560
(10°F ∆Tw)
Sensible
47,960
53,340
75,670
82,420
95,250
11.1 / (5.8)
12.4 / (7.1)
18.8 / (16.1)
20.3 / (18.5)
22.2 / (5.8) 97,640
GPM / (pd. Ft.)
- Chilled Water (4-10 ton) Systems
Low Flow
Total
49,160
54,360
87,270
94,830
(12°F ∆Tw)
Sensible
44,430
49,290
72,610
79,360
88,190
8.3 / (3.4)
9.2 / (4.1)
14.6 / (10.2)
15.9 / (11.9)
16.6 / (3.4) 99,540
GPM / (pd. Ft.) 72°FDB/60°FWB, 50% RH High Flow
Total
50,110
55,070
83,050
89,560
(8°F ∆Tw)
Sensible
45,920
50,810
71,570
77,990
91,150
12.6 / (7.4)
13.9 / (8.8)
20.9 / (19.6)
22.5 / (22.6)
25.2 / (7.4) 85,960
GPM / (pd. Ft.) Med. Flow
Total
43,320
47,530
78,610
84,870
(10°F ∆Tw)
Sensible
41,670
46,000
69,090
75,240
82,660
8.7 / (3.7)
9.6 / (4.5)
15.8 / (11.9)
17.2 / (13.7)
17.4 / (3.7) 67,580
Air Technology Systems, Inc GPM / (pd. Ft.)
Low Flow
Total
34,130
37,920
71,630
77,770
(12°F ∆Tw)
Sensible
34,130
37,920
64,930
70,840
67,580
5.8 / (1.6)
6.4 / (2.1)
12.0 / (7.2)
13.1 / (8.4)
11.6 / (1.6)
150,470
GPM / (pd. Ft.)
80°FDB/65°FWB, 45% RH High Flow
Total
75,570
82,490
120,390
130,020
(8°F ∆Tw)
Sens.
61,670
68,110
93,640
102,180
122,660
18.9 / (15.5)
20.7 / (18.3)
30.2 / (38.4)
32.6 / (44.1)
37.8 / (15.5) 139,440
GPM / (pd. Ft.) Med. Flow
Total
70,060
77,190
114,230
123,240
(10°F ∆Tw)
Sens.
58,910
65,370
90,740
98,940
117,150
14.1 / (8.9)
15.5 / (10.7)
23.0 / (23.3)
24.8 / (26.7)
28.2 / (8.9) 128,090
GPM / (pd. Ft.) Low Flow
Total
64,380
76,080
108,620
117,210
(12°F ∆Tw)
Sens.
55,910
62,060
88,020
95,950
111,140
10.8 / (5.5)
11.9 / (6.6)
18.2 / (15.1)
19.6 / (17.4)
21.6 / (5.5) 113,800
GPM / (pd. Ft.) 75°FDB/61°FWB, 45% RH High Flow
Total
57,240
62,820
93,130
100,510
(8°F ∆Tw)
Sens.
53,140
58,810
81,850
89,260
105,610
14.4 / (9.4)
15.9 / (11.2)
23.4 / (24.1)
25.3 / (27.8)
28.8 / (9.4) 101,000
GPM / (pd. Ft.) Med. Flow
Total
50,840
55,860
89,310
96,130
(10°F ∆Tw)
Sens.
49,150
54,370
79,650
86,670
97,630
10.2 / (5.0)
11.3 / (6.0)
18.0 / (14.9)
19.4 / (17.2)
20.4 / (5.0) 83,850
GPM / (pd. Ft.) Low Flow
Total
42,260
46,900
84,180
91,060
(12°F ∆Tw)
Sens.
42,260
46,900
76,530
83,390
83,850
7.1 / (2.6)
7.9 / (3.1)
14.1 / (9.6)
15.3 / (11.1)
14.2 / (2.6) 89,130
GPM / (pd. Ft.) 72°FDB/58.5°FWB, 45% RH High Flow
Total
44,900
49,650
79,680
85,280
(8°F ∆Tw)
Sens.
44,900
49,650
75,350
81,670
89,130
11.3 / (6.0)
12.5 / (7.3)
20.0 / (18.2)
21.4 / (20.6)
22.6 / (6.0) 79,120
GPM / (pd. Ft.) Med. Flow
Total
39,900
44,230
66,750
72,960
(10°F ∆Tw)
Sens.
39,900
44,230
66,750
72,960
79,120
8.1 / (3.2)
9.0 / (3.9)
13.4 / (8.8)
14.8 / (10.5)
16.2 / (3.2) 67,330
GPM / (pd. Ft.) Low Flow
Total
34,000
37,780
60,390
65,910
(12°F ∆Tw)
Sens.
34,000
37,780
60,390
65,910
67,330
5.7 / (1.6)
6.4 / (2.0)
10.2 / (5.3)
11.1 / (6.3)
11.4 / (1.6)
GPM / (pd. Ft.)
4-13
Air Technology Systems, Inc.
Chilled Water OHS-048-C
OHS-060-C
OHS-072-C
OHS-084-C
OHS-120-C
Chilled Water Control Valve - Sized for Medium Flow @ 75°FDB/62.5°FWB EAT Conditions 2-way (standard) - Spring Actuated (Open/Close) 1" / (8.0 Cv)
1" / (8.0 Cv)
1" / (14.0 Cv)
1" / (14.0 Cv)
1" / (14.0 Cv)
Valve Pressure Rating
Size / (Cv)
300 psig
300 psig
400 psig
400 psig
400 psig
Total Unit Pressure Drop
10.4 Ft.
12.7 Ft.
20.7 Ft.
24.1 Ft.
12.5 Ft.
3-way (optional) - Spring Actuated (Open/Close) 1" / (7.0 Cv)
1" / (7.0 Cv)
1" / (14.0 Cv)
1" / (14.0 Cv)
1" / (14.0 Cv)
Valve Pressure Rating
Size / (Cv)
300 psig
300 psig
400 psig
400 psig
400 psig
Total Unit Pressure Drop
11.8 Ft.
14.4 Ft.
20.7 Ft.
24.1 Ft.
12.5 Ft.
4/ 5.0
4/ 6.7
4/ 6.7
4/ 10.0
Chilled Water Coil - Aluminum Fin, Copper Tube Rows/Face Area (Ft2)
4/ 5.0
Evaporator Blower / Motor - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower CFM @ ext. st. press. Drive Method
1-1/2 Hp
1-1/2 Hp
2 Hp
3 Hp
2,500 @ 0.5"
3,000 @ 0.5"
3,350 @ 0.5"
4,400 @ 0.5"
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Belt Driven
38,900 (11.4)
40,510 (11.9)
43,580 (12.8)
Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V/460V
37,350 (10.9)
38,900 (11.4)
@ 230V
43,140 (12.6)
44,690 (13.1)
44,690 (13.1)
46,300 (13.6)
49,370 (14.5)
@ 480V
38,835 (11.4)
40,385 (11.8)
40,385 (11.8)
41,995 (12.3)
45,065 (13.2)
99,830
130,500
HOT WATER REHEAT / HEAT - Reheat rated @ 180°F Entering Water Temperature, EAT = 72°F DB BTU/H
97,140
111,220
97,880
GPM / Press. Drop (ft.wg)
4.0 / (0.4)
5.0 / (0.6)
3.0 / (0.3)
3.0 / (0.3)
10.0 / (2.2)
Control
Motorized
Motorized
Motorized
Motorized
Motorized
90,000
120,000
STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72°F DB BTU/H (nominal) Condensate (lb/hr) Control
48,000
60,000
72,000
50
63
75
94
125
Motorized
Motorized
Motorized
Motorized
Motorized
Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) Std Control
4-10, (3.4)
4-10, (3.4)
4-15, (5.1)
4-15, (5.1)
4-15, (5.1)
Cycling
Cycling
Cycling
Cycling
Cycling
20x16, (2)
20x16, (2)
20x20, (2)
20x20, (2)
24x24, (2)
Filters - 1" deep throwaway Nominal Size (in.), (Qty)
Connection Sizes - Copper, (Water In/Out connections are sized for flow rates at 75°FDB/62.5°FWB EAT conditions.) Cond. Drain, (w/ In-Pan Pump) Humidifier Inlet Chilled Water In/Out
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1-1/8" OD
1-1/8" OD
1-1/8" OD
1-1/8" OD
1-3/8" OD
365 lbs
415 lbs
495 lbs
- Chilled Water (4-10 ton) Systems
1 Hp 2,200 @ 0.5"
Performance Data
OHS Model
4 to 10 Ton "OHS"
Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight
280 lbs
290 lbs
Air Technology Systems, Inc.
4-14
Chilled Water -
42°F Entering Water Temperature
Cooling Capacities (BTU/H) for 42°F Chilled Water Entering the Cooling Coil 80°FDB/67°FWB
OHS-012C
OHS-018C
OHS-024C
OHS-032C
OHS-040C
OHS-048C
OHS-060C
OHS-072C
OHS-084C
OHS-120C
High Flow
Total
26,260
35,660
40,630
46,540
59,330
96,270
104,840
153,410
165,430
191,860
(8°F ∆Tw)
Sensible
16,820
23,440
27,080
31,360
40,970
64,660
71,110
99,310
107,930
128,640
GPM/(Ft.)
6.6/(25.0)
8.9/(43.9)
10.1/(55.8)
11.6/(29.8)
14.8/(47.2)
24.0/(24.2)
26.2/(28.4)
38.3/(59.6)
41.3/(68.6)
42.0/(24.2)
Med Flow
Total
24,550
33,500
38,180
43,710
55,750
89,650
97,830
144,620
155,710
178,610
(10°F ∆Tw)
Sensible
16,030
22,450
25,960
30,010
39,270
61,650
67,920
95,310
103,520
122,630
GPM/(Ft.)
4.9/(14.8)
6.7/(25.8)
7.6/(32.9)
8.7/(17.6)
11.1/(27.7)
17.9/(14.1)
19.6/(16.6)
28.9/(35.7)
31.2/(41.0)
35.8/(14.1)
Low Flow
Total
22,660
31,170
35,790
40,430
52,300
81,320
59,560
135,610
146,250
161,960
(12°F ∆Tw)
Sensible
15,180
21,390
24,860
28,450
37,600
57,910
64,180
91,260
99,260
115,150
GPM/(Ft.)
3.8/(9.1)
5.2/(16.1)
6.0/(20.8)
6.7/(10.9)
8.7/(17.6)
13.6/(8.4)
15.0/(10.1)
22.6/(22.7)
24.5/(26.3)
27.2/(8.4)
OHS-012C
OHS-018C
OHS-024C
OHS-032C
OHS-040C
OHS-048C
OHS-060C
OHS-072C
OHS-084C
OHS-120C
75°FDB/62.5°FWB High Flow
Total
19,450
26,760
30,590
35,200
45,190
72,100
79,070
115,660
124,650
143,530
(8°F ∆Tw)
Sensible
14,380
20,310
23,570
27,140
35,750
56,180
62,130
86,120
93,710
111,680
Air Technology Systems, Inc GPM/(Ft.)
4.9/(14.5)
6.7/(25.9)
7.6/(33.2)
8.8/(17.9)
11.3/(28.4)
18.1/(14.3)
19.9/(17.1)
28.9/(35.8)
31.2/(41.1)
36.2/(14.3)
Med Flow
Total
17,880
24,830
28,560
32,460
42,280
65,300
72,010
108,750
117,090
129,920
(10°F ∆Tw)
Sensible
13,620
19,360
22,540
25,730
34,220
52,790
58,560
82,780
90,030
104,910
GPM/(Ft.)
3.6/(8.2)
5.0/(15.1)
5.7/(19.3)
6.5/(10.2)
8.5/(16.7)
13.1/(7.9)
14.5/(9.6)
21.8/(21.4)
23.5/(24.5)
26.2/(7.9)
Low Flow
Total
16,370
22,860
26,690
29,890
39,060
58,870
65,240
101,470
110,240
117,060
(12°F ∆Tw)
Sensible
12,880
18,360
21,440
24,390
32,470
49,420
54,950
79,230
86,610
98,170
GPM/(Ft.)
2.8/(5.0)
3.8/(9.2)
4.4/(11.9)
5.0/(6.3)
6.5/(10.2)
9.9/(4.7)
11.0/(5.7)
17.0/(13.6)
18.5/(15.8)
19.8/(4.7)
OHS-012C
OHS-018C
OHS-024C
OHS-032C
OHS-040C
OHS-048C
OHS-060C
OHS-072C
OHS-084C
OHS-120C
72°FDB/60°FWB High Flow
Total
16,130
22,430
25,760
29,550
38,380
59,940
65,890
97,760
105,340
119,190
(8°F ∆Tw)
Sensible
12,960
18,450
21,470
24,590
32,650
50,840
56,300
78,590
85,540
100,990
GPM/(Ft.)
4.1/(10.4)
5.7/(19.0)
6.4/(24.0)
7.4/(13.0)
9.6/(21.0)
15.1/(10.2)
16.6/(12.3)
24.5/(26.4)
26.4/(30.3)
30.2/(10.2)
Med Flow
Total
14,790
20,650
23,870
27,110
35,430
53,890
59,500
91,990
99,230
107,110
(10°F ∆Tw)
Sensible
12,270
17,500
20,430
23,230
30,950
47,500
52,690
75,630
82,350
94,310
GPM/(Ft.)
3.0/(5.9)
4.2/(10.8)
4.8/(14.0)
5.4/(7.4)
7.1/(12.1)
10.8/(5.6)
12.0/(6.8)
18.5/(15.8)
20.0/(18.2)
21.6/(5.6)
Low Flow
Total
13,530
18,980
21,970
24,850
32,490
47,370
52,240
84,910
92,170
94,070
(12°F ∆Tw)
Sensible
11,590
16,540
19,310
21,920
29,140
43,510
48,160
71,880
78,490
86,340
GPM/(Ft.)
2.3/(3.4)
3.2/(6.6)
3.7/(8.6)
4.2/(4.5)
5.4/(7.3)
8.0/(3.2)
8.8/(3.8)
14.2/(9.9)
15.5/(11.4)
16.0/(3.2)
(Note: The above Cooling capacities @ standard CFM/e.s.p. as shown on page 4-19 & 4-21, Evaporator Blower/Motor.)
4-19 4-15
Air Technology Systems, Inc.
Chilled Water -
50°F Entering Water Temperature
Cooling Capacities (BTU/H) for 50°F Chilled Water Entering the Cooling Coil 80°FDB/67°FWB
OHS-012C
OHS-018C
OHS-024C
OHS-032C
OHS-040C
OHS-048C
OHS-060C
OHS-072C
OHS-084C
OHS-120C
High Flow
Total
17,340
23,720
27,070
31,550
40,300
64,160
69,840
102,640
110,880
127,640
(8°F ∆Tw)
Sensible
12,970
18,360
21,350
24,670
32,580
51,150
56,420
77,640
84,770
101,610
GPM/(Ft.)
4.4/(11.6)
6.0/(20.6)
6.8/(26.0)
7.9/(14.5)
10.1/(22.7)
16.1/(11.4)
17.6/(13.4)
25.7/(28.3)
27.9/(32.7)
32.2/(11.4)
Med Flow
Total
15,870
22,110
25,390
29,130
36,840
58,670
64,760
96,430
103,990
116,670
(10°F ∆Tw)
Sensible
12,330
17,620
20,530
23,520
31,310
48,530
53,880
74,920
81,700
96,380
GPM/(Ft.)
3.2/(6.5)
4.5/(12.0)
5.1/(15.3)
5.8/(8.2)
7.6/(13.4)
11.8/(6.4)
13.1/(7.8)
19.4/(16.9)
21.0/(19.5)
23.6/(6.4)
Low Flow
Total
14,570
20,410
23,660
26,770
35,130
52,860
58,460
91,030
97,870
105,040
(12°F ∆Tw)
Sensible
11,730
16,780
19,640
22,320
29,840
45,480
50,480
72,410
78,760
90,280
GPM/(Ft.)
2.5/(4.0)
3.4/(7.4)
4.0/(9.7)
4.5/(5.1)
5.9/(8.3)
8.9/(3.8)
9.9/(4.6)
15.3/(10.9)
16.4/(12.5)
17.8/(3.8)
OHS-012C
OHS-018C
OHS-024C
OHS-032C
OHS-040C
OHS-048C
OHS-060C
OHS-072C
OHS-084C
OHS-120C
75°FDB/62.5°FWB High Flow
Total
12,100
16,730
19,200
22,380
28,770
43,580
45,430
75,480
80,860
86,480
(8°F ∆Tw)
Sensible
10,990
15,610
18,170
20,880
27,580
42,410
45,430
67,760
73,570
84,150
GPM/(Ft.)
3.1/(6.1)
4.2/(10.9)
4.8/(14.0)
5.7/(7.8)
7.2/(12.3)
11.0/(5.6)
11.5/(6.1)
19.0/(16.3)
20.4/(18.6)
22.0/(5.6)
Med Flow
Total
10,900
14,880
16,960
19,860
23,400
36,050
39,970
71,720
76,250
71,430
(10°F ∆Tw)
Sensible
10,270
14,430
16,690
19,290
23,400
36,050
39,970
65,350
70,550
71,430
GPM/(Ft.)
2.2/(3.3)
3.0/(5.8)
3.4/(7.4)
4.0/(4.2)
4.8/(5.7)
7.3/(2.7)
8.2/(3.3)
14.4/(9.9)
15.4/(11.2)
14.6/(2.7)
Low Flow
Total
8,710
12,380
14,420
15,370
20,380
30,000
33,350
54,330
59,290
59,330
(12°F ∆Tw)
Sensible
8,710
12,380
14,420
15,370
20,380
30,000
33,350
54,330
59,290
59,330
GPM/(Ft.)
1.5/(1.3)
2.1/(2.9)
2.4/(3.9)
2.6/(1.7)
3.5/(3.1)
5.1/(1.2)
5.7/(1.6)
9.2/(4.4)
10.0/(5.1)
10.2/(1.2)
OHS-012C
OHS-018C
OHS-024C
OHS-032C
OHS-040C
OHS-048C
OHS-060C
OHS-072C
OHS-084C
OHS-120C
72°FDB/60°FWB High Flow
Total
8,950
12,720
14,820
16,220
21,520
33,560
37,150
55,560
60,470
66,440
(8°F ∆Tw)
Sensible
8,950
12,720
14,820
16,220
21,520
33,560
37,150
55,560
60,470
66,440
GPM/(Ft.)
2.3/(3.5)
3.2/(6.6)
3.7/(8.7)
4.1/(4.3)
5.5/(7.3)
8.5/(3.5)
9.5/(4.3)
14.1/(9.5)
15.4/(11.1)
17.0/(3.5)
Med Flow
Total
7,930
11,260
13,120
14,070
18,640
27,890
30,910
49,330
53,790
55,100
(10°F ∆Tw)
Sensible
7,930
11,260
13,120
14,070
18,640
27,890
30,910
49,330
53,790
55,100
GPM/(Ft.)
1.6/(1.6)
2.3/(3.5)
2.7/(4.6)
2.9/(2.1)
3.8/(3.7)
5.7/(1.6)
6.4/(2.0)
10.0/(5.1)
11.0/(6.0)
11.4/(1.6)
Low Flow
Total
6,690
9,550
11,140
11,500
15,340
20,870
23,350
41,390
45,320
41,060
(12°F ∆Tw)
Sensible
6,690
9,550
11,140
11,500
15,340
20,870
23,350
41,390
45,320
41,060
GPM/(Ft.)
1.1/(0.7)
1.6/(1.6)
1.9/(2.3)
2.0/(0.8)
2.6/(1.7)
3.6/(0.5)
4.1/(0.7)
7.0/(2.7)
7.7/(3.2)
7.2/(0.5)
(Note: The above Cooling capacities @ standard CFM/e.s.p. as shown on page 4-19 & 4-21, Evaporator Blower/Motor.)
Air Technology Systems, Inc.
4-16
Free-Cooling & Alternate Water Source
Free-Cooling
MODEL TYPE ........................................... page
DX with Free-Cooling Self-Contained Glycol Cooled w/ FC: • 1-5 Ton, models OHS-012/060-G-FC............................ 4-17/19 • 4-10 Ton, models OHS-048/120-DG-FC........................ 4-20/21
Self-Contained Water Cooled w/ FC:
- Free-Cooling & Alternate Water Source Systems
• 1-5 Ton, models OHS-012/060-W-FC............................ 4-22/23 • 4-10 Ton, models OHS-048/120-DW-FC....................... 4-24/25
DX with Alternate Water Source
Air Technology Systems, Inc Alternate Water Source:
• 1-5 Ton, models OHS-012/060-( )-AWS............................. 4-26 • 4-10 Ton, models OHS-048/120-D()-AWS.......................... 4-27 • 42°F / 50°F EWT Performance Data................................... 4-28
Alternate Water Source
Remote Liquid Chiller (by others)
Alternate Water Source Cooling Coil
Pump (by others) Flow Switch
Alternate Water Source Aqua-Stat T
Remote Air Cooled Condenser Scroll Compressor
Flooded Head Pressure Control Valve Relief Valve
Receiver
Air Technology Systems, Inc.
DX - Cooling Coil
LP
HP
Sight Glass
Refrigerant Reclaim Port
4-17
AWS Control Valve
FS
Equalizer Line
Performance Data
Free-Cooling / Alternate Water Source
Feeler Bulb
Solenoid Valve Refrigerant Drier / Strainer
Expansion Valve
DX Glycol Cooled w/ Free-Cooling - 1 to 5 Ton "OHS" 012-HG-FC
018-HG-FC
024-HG-FC
032-HG-FC
040-HG-FC
048-G-FC
060-G-FC
NET DX COOLING CAPACITY - BTU/H, (includes standard DX w/ FC evaporator motor heat @ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH 13,390
18,960
25,090
32,000
34,910
57,150
62,670
Sensible
10,435
15,060
19,160
23,085
27,500
46,565
51,120
Total
12,200
17,541
22,975
28,175
31,855
52,325
57,335
Sensible
10,450
15,194
18,710
23,700
26,975
45,920
50,410
Total
11,510
16,720
21,900
27,800
30,540
49,770
54,525
Sensible
10,210
14,880
18,275
22,045
26,455
44,970
49,370
Total
12,900
18,375
23,990
30,580
33,840
54,920
60,120
Sensible
11,650
16,800
20,535
24,540
30,475
51,075
56,140
Total
11,780
17,035
22,430
28,175
31,290
50,785
55,550
Sensible
11,171
16,200
20,195
23,700
29,270
49,080
53,900
Total
11,120
16,235
21,355
27,065
29,770
48,360
52,680
Sensible
10,875
15,855
19,760
23,375
28,610
47,710
51,930
75°FDB/62.5°FWB, 50% RH
72°FDB/60°FWB, 50% RH
80°FDB/65°FWB, 45% RH
75°FDB/61°FWB, 45% RH
72°FDB/58.5°FWB, 45% RH
FREE-COOLING CAPACITY - BTU/H @ 45°F Entering Glycol Temperature, 40% Ethylene Glycol Solution 80°FDB/67°FWB, 50% RH Total
16,040
22,685
27,755
32,355
39,420
57,050
63,700
Sensible
12,500
17,960
21,670
25,080
32,180
48,450
54,265
Total
12,880
18,190
22,170
25,910
31,670
45,395
50,560
Sensible
11,460
16,440
19,800
22,795
29,290
44,130
49,325
Total
11,160
15,670
19,125
22,455
27,265
39,955
44,570
Sensible
10,665
15,235
18,370
21,150
27,025
39,955
44,570
Total
15,110
21,330
25,990
30,380
37,140
53,235
59,270
Sensible
13,400
19,225
23,140
26,640
34,270
51,680
57,765
Total
12,200
16,815
20,840
24,630
29,405
44,500
49,635
Sensible
12,000
16,815
20,630
23,820
29,405
44,500
49,635
Total
10,740
15,260
18,465
21,010
26,380
39,890
44,490
Sensible
10,740
15,260
18,465
21,010
26,380
39,890
44,490
5.3 GPM
6.9 GPM
8.9 GPM
9.7 GPM
15.1 GPM
16.7 GPM
75°FDB/62.5°FWB, 50% RH
72°FDB/60°FWB, 50% RH
80°FDB/65°FWB, 45% RH
75°FDB/61°FWB, 45% RH
72°FDB/58.5°FWB, 45% RH
Flow Rates, Free-Cooling Coil Flow Rate
3.8 GPM
Evaporator Blower / Motor, DX w/ Free-Cooling - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys 1/4 Hp
1/3 Hp
1/2 Hp
1/2 Hp
3/4 Hp
1-1/2 Hp
2 Hp
CFM @ ext. st. press.
Horsepower
500 @ 0.5"
750 @ 0.5"
900 @ 0.5"
1,000 @ 0.5"
1,415 @ 0.5"
2,200 @ 0.5"
2,500 @ 0.5"
Drive Method
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Evaporator Coils, (Both DX & Free-Cooling Respectively) - Aluminum Fin, Copper Tube
- DX Glycol Cooled w/ FC (1 to 5 Ton Systems)
Total
Performance Data
OHS Model
DX Coil: Rows/ Face Area (Ft2)
3/ 2.1
3/ 2.1
3/ 2.1
3/ 2.8
3/ 2.8
4/ 5.0
4/ 5.0
4/ 2.1
4/ 2.1
4/ 2.1
4/ 2.8
4/ 2.8
4/ 5.0
4/ 5.0
FC Coil: Rows/Face Area (Ft2)
Air Technology Systems, Inc.
4-18
DX Glycol Cooled w/ Free-Cooling - 1 to 5 Ton "OHS"
Performance Data
OHS Model
012-HG-FC
018-HG-FC
024-HG-FC
032-HG-FC
040-HG-FC
048-G-FC
060-G-FC
Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V
17,135 (5.0)
17,135 (5.0)
17,135 (5.0)
17,425 (5.1)
17,955 (5.3)
37,350 (10.9)
38,900 (11.4)
@ 230V
18,840 (5.5)
18,840 (5.5)
18,840 (5.5)
19,130 (5.6)
19,660 (5.8)
43,140 (12.6)
44,690 (13.1)
@ 460V
17,355 (5.1)
17,355 (5.1)
17,355 (5.1)
17,645 (5.2)
18,175 (5.3)
37,350 (10.9)
38,900 (11.4)
@ 277/480V
18,065 (5.3)
18,065 (5.3)
18,065 (5.3)
18,355 (5.4)
18,885 (5.5)
38,835 (11.4)
40,385 (11.8)
Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
4-10, (3.4)
4-10, (3.4)
Cycling
Cycling
Cycling
Cycling
Cycling
Cycling
Cycling
Std Control
Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.)
Recip., (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Watts Input
1,442
1,729
2,227
2,882
3,027
4,699
5,290
DX Glycol Condenser Data - Based on 40% ethylene glycol solution Tot. Heat of Reject.
17,270 Btu/h
23,990 Btu/h
31,305 Btu/h
40,340 Btu/h
43,625 Btu/h
68,360 Btu/h
75,390 Btu/h
- DX Glycol Cooled w/ FC (1 to 5 Ton Systems)
GPM @ 110°F EGT
3.8 GPM
5.3 GPM
6.9 GPM
8.9 GPM
9.7 GPM
15.1 GPM
16.7 GPM
Total Unit PD (Ft. of H2O)
11.8 Ft.
21.1 Ft.
38.4 Ft.
28.1 Ft.
34.3 Ft.
20.1 Ft.
24.9 Ft.
Type
Coaxial
Coaxial
Coaxial
Coaxial
Coaxial
Coaxial
Coaxial
DX-Head Pressure & Free-Cooling Coil Control Valve Combinations DX Hd Pr. Valve Type - - - - - - - - 3-way, 150 psig DX Condenser Source Regulating Valve - field installed - - - - - - - Free-Cooling Valve - 3-way, Spring Actuated (Open/Close):
Air Technology Systems, Inc
4-19
FC Valve Size / (Cv)
1/2" / (5.0 Cv)
3/4" / (5.0 Cv)
3/4" / (5.0 Cv)
3/4" / (5.0 Cv)
3/4" / (5.0 Cv)
1" / (7.0 Cv)
1" / (7.0 Cv)
300 psig
300 psig
300 psig
300 psig
300 psig
300 psig
300 psig
Valve Pressure Rating
Optional Valve Combinations - Please refer to page 3-9 for Higher Pressure Rated and Modulating (0-10 Vdc) Valve Combination Options! Connection Sizes - Copper Condensate Drain
3/4" FPT
3/4" FPT
3/4" FPT
3/4" FPT
3/4" FPT
3/4" FPT
3/4" FPT
Humidifier Inlet
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
Source Glycol In/Out
5/8" OD
7/8" OD
7/8" OD
7/8" OD
7/8" OD
1-1/8" OD
1-1/8" OD
20x20, (1)
20x20, (1)
20x20, (1)
20x20, (1)
20x16, (2)
20x16, (2)
300 lbs
310 lbs
500 lbs
510 lbs
Filters - 1" deep throwaway Nom. Size (in.), (Qty.)
20x20, (1)
Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight 245 lbs
265 lbs
275 lbs
DRYCOOLER DATA - Please refer to Glycol Pump / Drycooler Engineering Manual 105°F Amb. Selections - Optional - Please refer to Glycol Pump / Drycooler Engineering Manual Glycol Pump Packages - Optional - Please refer to Glycol Pump / Drycooler Engineering Manual
Air Technology Systems, Inc.
DX Glycol Cooled w/ Free-Cooling - 4 to 10 Ton "OHS" (Dual) 048-DG-FC
072-DG-FC
084-DG-FC
120-DG-FC
NET DX COOLING CAPACITY - BTU/H, (includes standard DX w/ FC evaporator motor heat @ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH 51,260
70,230
87,445
123,970
Sensible
39,730
61,010
69,465
95,280
Total
46,840
64,090
79,565
113,045
Sensible
39,230
60,180
69,420
93,920
Total
44,600
60,990
75,580
107,490
Sensible
38,400
58,520
68,115
91,925
Total
49,150
67,340
83,055
118,680
Sensible
43,340
65,360
77,390
104,065
Total
45,500
62,635
76,640
109,590
Sensible
41,840
61,750
73,350
100,420
Total
43,320
59,880
73,150
104,185
Sensible
41,000
59,635
71,130
98,400
75°FDB/62.5°FWB, 50% RH
72°FDB/60°FWB, 50% RH
80°FDB/65°FWB, 45% RH
75°FDB/61°FWB, 45% RH
72°FDB/58.5°FWB, 45% RH
FREE-COOLING CAPACITY - BTU/H @ 45°F Entering Glycol Temperature, 40% Ethylene Glycol Solution 80°FDB/67°FWB, 50% RH Total
54,105
89,015
105,970
119,730
Sensible
42,715
72,360
83,255
99,390
Total
43,290
72,275
85,820
95,730
Sensible
39,055
66,680
76,665
90,850
Total
37,290
62,365
74,595
82,130
Sensible
36,180
61,770
71,425
82,130
Total
50,780
84,960
100,770
112,260
Sensible
45,670
78,090
89,680
106,340
Total
39,925
68,360
81,685
92,370
Sensible
39,925
68,360
81,685
92,370
Total
36,260
61,260
71,495
82,820
Sensible
36,260
61,260
71,495
82,820
13.7 GPM
18.7 GPM
23.8 GPM
33.0 GPM
75°FDB/62.5°FWB, 50% RH
72°FDB/60°FWB, 50% RH
80°FDB/65°FWB, 45% RH
75°FDB/61°FWB, 45% RH
72°FDB/58.5°FWB, 45% RH
Flow Rates, Free-Cooling Coil Flow Rate
Evaporator Blower / Motor, DX w/ Free-Cooling - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower CFM @ ext. st. press. Drive Method
1 Hp
1-1/2 Hp
2 Hp
3 Hp
1,800 @ 0.5"
3,000 @ 0.5"
3,350 @ 0.5"
4,400 @ 0.5"
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Evaporator Coils, (Both DX & Free-Cooling Respectively) - Aluminum Fin, Copper Tube
- DX Glycol Cooled w/ FC (4 to 10 Ton Dual Systems)
Total
Performance Data
OHS Model
DX Coil: Rows/ Face Area (ft2)
4/ 4.1 ft2
4/ 6.7 ft2
4/ 6.7 ft2
4/ 10.0 ft2
Rows/Face Area (ft2)
4/ 4.1 ft2
4/ 6.7 ft2
4/ 6.7 ft2
4/ 10.0 ft2
FC Coil:
Air Technology Systems, Inc.
4-20
DX Glycol Cooled w/ Free-Cooling - 4 to 10 Ton "OHS" (Dual)
Performance Data
OHS Model
048-DG-FC
072-DG-FC
084-DG-FC
120-DG-FC
Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V/460V
36,810 (10.9)
38,900 (11.4)
40,510 (11.9)
43,580 (12.8)
@ 230V
42,600 (12.5)
44,690 (13.1)
46,300 (13.6)
49,370 (14.5)
@ 480V
38,295 (11.2)
40,385 (11.8)
41,995 (12.3)
45,065 (13.2)
Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input)
- DX Glycol Cooled w/ FC (4 to 10 Ton Dual Systems)
4-10, (3.4)
4-15, (5.1)
4-15, (5.1)
4-15, (5.1)
Cycling
Cycling
Cycling
Cycling
Scroll, (2)
Scroll, (2)
Scroll, (2)
Scroll, (2)
2,188
2,973
4,103
5,290
61,775 Btu/h
84,385 Btu/h
107,570 Btu/h
149,155 Btu/h
13.7 GPM
18.7 GPM
23.8 GPM
33.0 GPM
Total Unit Pressure Drop (Ft. of H2O)
37.8 Ft.
34.8 Ft.
41.0 Ft.
29.5 Ft.
Type
Coaxial
Coaxial
Coaxial
Coaxial
Std Control
Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.) Watt Input (per compressor)
DX Glycol Condenser Data - Based on 40% ethylene glycol solution Total Heat of Rejection GPM @ 110°F EGT
DX-Head Pressure & Free-Cooling Coil Control Valve Combinations DX Head Pressure Regulating Valves: DX Hd Pr. Valve Type - - - - - - - - - - -3-way, 150 psig DX Condenser Source Regulating Valve - factory installed - - - - - - - - - - - Free-Cooling Valve - 3-way, Spring Actuated (Open/Close):
Air Technology Systems, Inc
4-21
FC Valve Size / (Cv)
Valve Pressure Rating
1" / (7.0 Cv)
1" / (14.0 Cv)
1" / (14.0 Cv)
1" / (14.0 Cv)
300 psig
400 psig
400 psig
400 psig
Optional Valve Combos - Please refer to page 3-9 for Higher Pressure Rated and Modulating (0-10 Vdc) Valve Combination Options!
Connection Sizes - Copper
Condensate Drain, (w/ In-Pan Pump) Humidifier Inlet Source Glycol In/Out
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1-1/8" OD
1-1/8" OD
1-3/8" OD
1-3/8" OD
16x20, (2)
20x20, (2)
20x20, (2)
24x24, (2)
660 lbs
745 lbs
Filters - 1" deep throwaway Nominal Size (in.), (Qty.)
Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight
550 lbs
570 lbs
DRYCOOLER DATA - Please refer to Glycol Pump / Drycooler Engineering Manual 105°F Amb. Selections - Optional - Please refer to Glycol Pump / Drycooler Engineering Manual Glycol Pump Packages - Optional - Please refer to Glycol Pump / Drycooler Engineering Manual
Air Technology Systems, Inc.
DX Water Cooled w/ Free-Cooling - 1 to 5 Ton "OHS" 012-HW-FC
018-HW-FC
024-HW-FC
032-HW-FC
040-HW-FC
048-W-FC
060-W-FC
DX COOLING CAPACITY - BTU/H, (includes standard DX w/ FC evaporator motor heat @ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH 16,394
21,125
27,990
35,550
39,115
64,250
70,665
Sensible
11,675
16,000
20,455
24,575
29,500
49,240
54,100
Total
14,850
19,345
25,750
32,700
35,830
58,820
64,690
Sensible
11,340
15,625
20,100
24,265
28,800
48,580
53,445
Total
14,000
18,380
24,560
31,150
34,109
56,070
61,650
Sensible
11,050
16,400
19,680
23,775
28,093
47,600
52,345
Total
15,570
20,430
26,840
34,170
37,355
61,635
67,730
Sensible
12,440
17,645
21,825
26,300
31,600
53,560
58,955
Total
14,380
18,950
24,920
31,600
35,120
57,130
62,760
Sensible
12,250
17,040
21,075
25,360
30,560
51,780
56,975
Total
13,620
18,065
23,685
30,060
33,460
54,460
59,795
Sensible
12,010
16,710
20,700
24,820
30,470
50,820
55,910
75°FDB/62.5°FWB, 50% RH
72°FDB/60°FWB, 50% RH
80°FDB/65°FWB, 45% RH
75°FDB/61°FWB, 45% RH
72°FDB/58.5°FWB, 45% RH
FREE-COOLING CAPACITY - BTU/H @ 45°F Entering Water Temperature, 0% Glycol Solution 80°FDB/67°FWB, 50% RH Total
20,595
27,790
32,980
39,210
48,040
75,585
83,475
Sensible
14,380
20,050
23,810
28,095
35,960
55,990
62,325
Total
16,240
22,100
26,160
31,060
38,605
60,370
66,790
Sensible
12,975
18,215
21,605
25,280
32,710
51,050
56,895
Total
14,010
19,125
22,600
26,820
33,565
52,360
57,970
Sensible
12,040
16,935
20,075
23,400
30,390
47,520
52,960
Total
19,030
25,895
30,615
36,395
45,190
70,785
78,305
Sensible
15,130
21,250
25,190
29,490
38,160
59,610
66,435
Total
15,350
20,985
24,750
29,390
36,840
57,550
63,570
Sensible
13,565
19,090
22,605
26,325
34,220
53,600
59,650
Total
13,295
18,050
21,240
25,440
30,250
48,250
53,590
Sensible
12,620
17,640
20,880
24,400
30,250
48,250
53,590
4.9 GPM
6.4 GPM
8.3 GPM
9.0 GPM
14.1 GPM
15.6 GPM
75°FDB/62.5°FWB, 50% RH
72°FDB/60°FWB, 50% RH
80°FDB/65°FWB, 45% RH
75°FDB/61°FWB, 45% RH
72°FDB/58.5°FWB, 45% RH
Flow Rates, Free-Cooling Coil Flow Rate
3.8 GPM
Evaporator Blower / Motor, DX w/ Free-Cooling - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys 1/4 Hp
1/3 Hp
1/2 Hp
1/2 Hp
3/4 Hp
1-1/2 Hp
2 Hp
CFM @ ext. st. press.
Horsepower
500 @ 0.5"
750 @ 0.5"
900 @ 0.5"
1,000 @ 0.5"
1,415 @ 0.5"
2,200 @ 0.5"
2,500 @ 0.5"
Drive Method
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Belt Driven
- DX Water Cooled w/ FC (1 to 5 Ton Systems)
Total
Performance Data
OHS Model
Evaporator Coils, (Both DX & Free-Cooling Respectively) - Aluminum Fin, Copper Tube DX Coil: Rows/ Face Area (ft2)
3/ 2.1
3/ 2.1
3/ 2.1
3/ 2.8
3/ 2.8
4/ 5.0
4/ 5.0
4/ 2.1
4/ 2.1
4/ 2.1
4/ 2.8
4/ 2.8
4/ 5.0
4/ 5.0
FC Coil: Rows/Face Area (ft2)
Air Technology Systems, Inc.
4-22
DX Water Cooled w/ Free-Cooling - 1 to 5 Ton "OHS"
Performance Data
OHS Model
012-HW-FC
018-HW-FC
024-HW-FC
032-HW-FC
040-HW-FC
048-W-FC
060-W-FC
Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V
17,135 (5.0)
17,135 (5.0)
17,135 (5.0)
17,425 (5.1)
17,955 (5.3)
37,350 (10.9)
38,900 (11.4)
@ 230V
18,840 (5.5)
18,840 (5.5)
18,840 (5.5)
19,130 (5.6)
19,660 (5.8)
43,140 (12.6)
44,690 (13.1)
@ 460V
17,355 (5.1)
17,355 (5.1)
17,355 (5.1)
17,645 (5.2)
18,175 (5.3)
37,350 (10.9)
38,900 (11.4)
@ 277/480V
18,065 (5.3)
18,065 (5.3)
18,065 (5.3)
18,355 (5.4)
18,885 (5.5)
38,835 (11.4)
40,385 (11.8)
Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input) Std Control
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
2-5, (1.7)
4-10, (3.4)
4-10, (3.4)
Cycling
Cycling
Cycling
Cycling
Cycling
Cycling
Cycling
Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.)
Recip., (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Scroll, (1)
Watts Input
1,245
1,239
1,633
2,118
2,222
3,451
3,867
DX Water Cooled Condenser Data - Based on 0% glycol solution
- DX Water Cooled w/ FC (1 to 5 Ton Systems)
Tot Heat of Reject.
18,900 Btu/h
24,350 Btu/h
32,145 Btu/h
41,325 Btu/h
44,865 Btu/h
70,600 Btu/h
77,890 Btu/h
GPM @ 85°F EWT
3.8 GPM
4.9 GPM
6.4 GPM
8.3 GPM
9.0 GPM
14.1 GPM
15.6 GPM
Total Unit PD (Ft. of H2O)
12.1 Ft.
16.3 Ft.
26.9 Ft.
21.6 Ft.
25.1 Ft.
16.5 Ft.
22.7 Ft.
Type
Coaxial
Coaxial
Coaxial
Coaxial
Coaxial
Coaxial
Coaxial
DX-Head Pressure & Free-Cooling Coil Control Valve Combinations DX Head Pressure Control Valve Type - - - - - - - - 3-way, 150 psig DX Condenser Source Regulating Valve - field installed - - - - - - - Free-Cooling Valve - 3-way, Spring Actuated (Open/Close): FC Valve Size / (Cv)
1/2" / (5.0 Cv)
3/4" / (5.0 Cv)
3/4" / (5.0 Cv)
3/4" / (5.0 Cv)
3/4" / (5.0 Cv)
1" / (7.0 Cv)
1" / (7.0 Cv)
Air Technology Systems, Inc
4-23
Valve Pressure Rating
300 psig
300 psig
300 psig
300 psig
300 psig
300 psig
300 psig
Optional Valve Combinations - Please refer to page 3-9 for Higher Pressure Rated and Modulating (0-10 Vdc) Valve Combination Options!
Connection Sizes - Copper Condensate Drain
3/4" FPT
3/4" FPT
3/4" FPT
3/4" FPT
3/4" FPT
3/4" FPT
3/4" FPT
Humidifier Inlet
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1/4" OD
Source Water In/Out
5/8" OD
7/8" OD
7/8" OD
7/8" OD
7/8" OD
1-1/8" OD
1-1/8" OD
20x20, (1)
20x20, (1)
20x20, (1)
20x20, (1)
20x20, (1)
20x16, (2)
20x16, (2)
300 lbs
310 lbs
500 lbs
510 lbs
Filters - 1" deep throwaway Nom. Size (in.), (Qty.)
Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight
245 lbs
265 lbs
275 lbs
Air Technology Systems, Inc.
DX Water Cooled w/ Free-Cooling - 4 to 10 Ton (Dual) "OHS" 048-DW-FC
072-DW-FC
084-DW-FC
120-DW-FC
NET DX COOLING CAPACITY - BTU/H, (includes standard DX w/ FC evaporator motor heat @ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH 57,200
79,165
98,760
139,210
Sensible
42,320
63,770
73,735
101,715
Total
52,580
72,510
90,475
127,660
Sensible
41,620
63,225
72,760
100,040
Total
50,100
69,035
86,090
121,610
Sensible
40,820
62,045
71,400
98,010
Total
54,890
75,840
94,300
133,265
Sensible
45,740
70,425
81,160
110,080
Total
50,960
70,200
87,050
123,460
Sensible
44,180
67,685
78,670
106,285
Total
48,620
66,785
82,760
117,645
Sensible
43,390
65,220
77,320
104,340
75°FDB/62.5°FWB, 50% RH
72°FDB/60°FWB, 50% RH
80°FDB/65°FWB, 45% RH
75°FDB/61°FWB, 45% RH
72°FDB/58.5°FWB, 45% RH
FREE-COOLING CAPACITY - BTU/H @ 45°F Entering Water Temperature, 0% Glycol Solution 80°FDB/67°FWB, 50% RH Total
65,040
114,520
129,450
155,760
Sensible
47,200
82,710
92,855
114,040
Total
51,715
92,810
103,815
124,035
Sensible
42,900
75,940
84,740
103,790
Total
44,720
81,270
90,630
107,260
Sensible
39,870
71,045
79,175
96,470
Total
60,530
108,660
121,700
145,395
Sensible
50,020
88,545
98,880
121,150
Total
49,015
89,840
99,690
117,850
Sensible
44,910
80,380
89,360
108,830
Total
42,040
78,890
87,155
100,940
Sensible
41,440
75,090
83,385
100,300
12.7 GPM
17.5 GPM
22.2 GPM
30.8 GPM
75°FDB/62.5°FWB, 50% RH
72°FDB/60°FWB, 50% RH
80°FDB/65°FWB, 45% RH
75°FDB/61°FWB, 45% RH
72°FDB/58.5°FWB, 45% RH
Flow Rates, Free-Cooling Coil Flow Rate
Evaporator Blower / Motor, DX w/ Free-Cooling - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower CFM @ ext. st. press. Drive Method
1 Hp
1-1/2 Hp
2 Hp
3 Hp
1,800 @ 0.5"
3,000 @ 0.5"
3,350 @ 0.5"
4,400 @ 0.5"
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Evaporator Coils, (Both DX & Free-Cooling Respectively) - Aluminum Fin, Copper Tube
- DX Water Cooled w/ FC (4 to 10 Ton Dual Systems)
Total
Performance Data
OHS Model
DX Coil: Rows/ Face Area (ft2)
4/ 4.1
4/ 6.7
4/ 6.7
4/ 10.0
Rows/Face Area (ft2)
4/ 4.1
4/ 6.7
4/ 6.7
4/ 10.0
FC Coil:
Air Technology Systems, Inc.
4-24
DX Water Cooled w/ Free-Cooling - 4 to 10 Ton (Dual) "OHS"
Performance Data
OHS Model
048-DW-FC
072-DW-FC
084-DW-FC
120-DW-FC
Reheat/Heat - Performance Capacities Include Motor Heat, (Optional) ELECTRIC REHEAT / HEAT - BTU/H (Kw) @ 208V/460V
36,810 (10.9)
38,900 (11.4)
40,510 (11.9)
43,580 (12.8)
@ 230V
42,600 (12.5)
44,690 (13.1)
46,300 (13.6)
49,370 (14.5)
@ 480V
38,295 (11.2)
40,385 (11.8)
41,995 (12.3)
45,065 (13.2)
Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional) Lbs/Hr, (Kw Input)
- DX Water Cooled w/ FC (4 to 10 Ton Dual Systems)
4-10, (3.4)
4-15, (5.1)
4-15, (5.1)
4-15, (5.1)
Cycling
Cycling
Cycling
Cycling
Scroll, (2)
Scroll, (2)
Scroll, (2)
Scroll, (2)
2,188
2,973
4,103
5,290
63,525 Btu/h
87,405 Btu/h
110,770 Btu/h
154,060 Btu/h
12.7 GPM
17.5 GPM
22.2 GPM
30.8 GPM
Press. Drop (Ft. of H2O)
26.8 Ft.
25.2 Ft.
28.3 Ft.
25.7 Ft.
Type
Coaxial
Coaxial
Coaxial
Coaxial
Std Control
Compressor - Heat pump duty rated, HCFC Ozone Safe R-22 Type, (Qty.) Watt Input (per compressor)
DX Water Cooled Condenser Data - Based on 0% glycol solution Total Heat of Reject. GPM @ 85°F EWT
DX-Head Pressure & Free-Cooling Coil Control Valve Combinations DX Hd Pr. Valve Type - - - - - - - - - - 3-way, 150 psig DX Condenser Source Regulating Valve - factory installed - - - - - - - - - Free-Cooling Valve - 3-way, Spring Actuated (Open/Close): FC Valve Size / (Cv)
1" / (7.0 Cv)
1" / (14.0 Cv)
1" / (14.0 Cv)
1" / (14.0 Cv)
300 psig
400 psig
400 psig
400 psig
Air Technology Systems, Inc Valve Pressure Rating
Optional Valve Combos - Please refer to page 3-9 for Higher Pressure Rated and Modulating (0-10 Vdc) Valve Combination Options!
Connection Sizes - Copper
Condensate Drain, (w/ In-Pan Pump)
Humidifier Inlet Source Water In/Out
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
3/4" FPT, (1/2"OD)
1/4" OD
1/4" OD
1/4" OD
1/4" OD
1-1/8" OD
1-1/8" OD
1-3/8" OD
1-3/8" OD
16x20, (2)
20x20, (2)
20x20, (2)
24x24, (2)
660 lbs
745 lbs
Filters - 1" deep throwaway Nominal Size (in.), (Qty.)
Physical Size - (Please refer to Section 6 for detailed dimensional data.) Approx. Weight
4-25
550 lbs
570 lbs
Air Technology Systems, Inc.
Alternate Water Source 012-AWS
018-AWS
024-AWS
032-AWS
040-AWS
(45°F EWT)
048-AWS
060-AWS
83,430
90,800
COOLING CAPACITY - BTU/H @ 45°F EWT, 0% Glycol Solution (includes motor heat @ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH High Flow (8°F ∆Tw)
Total Sens. GPM / (pd. Ft.)
22,970
31,040
35,250
40,690
51,820
15,340
21,380
24,650
28,610
37,500
58,940
64,920
5.8 / (19.6)
7.8 / (34.0)
8.8 / (43.1)
10.2 / (23.3)
13.0 / (36.8)
20.9 / (18.6)
22.8 / (21.9) 84,490
Med. Flow
Total
21,200
29,000
32,920
37,920
48,510
77,020
(10°F ∆Tw)
Sens.
14,560
20,470
23,600
27,310
35,930
56,080
62,060
4.3 / (11.2)
5.8 / (19.8)
6.6 / (25.1)
7.6 / (13.6)
9.7 / (21.5)
15.5 / (10.7)
17.1 / (12.7)
GPM / (pd. Ft.) Low Flow
Total
19,390
26,780
30,740
34,840
45,270
69,650
76,840
(12°F ∆Tw)
Sens.
13,760
19,470
22,600
25,870
34,360
52,730
58,530
3.3 / (6.8)
4.5 / (12.2)
5.2 / (15.8)
5.8 / (8.3)
7.6 / (13.4)
11.7 / (6.4)
13.0 / (7.7)
16,460
22,790
25,940
30,060
38,720
60,970
67,120
GPM / (pd. Ft.) 75°FDB/62.5°FWB, 50% RH High Flow (8°F ∆Tw)
Total Sens. GPM / (pd. Ft.)
18,450
21,330
24,610
32,550
50,870
56,430
5.7 / (19.4)
6.5 / (24.6)
7.6 / (13.4)
9.7 / (21.5)
15.4 / (10.6)
17.0 / (12.7) 60,770
Med. Flow
Total
15,110
21,030
24,210
27,600
36,030
54,830
(10°F ∆Tw)
Sens.
12,340
17,550
20,420
23,310
31,050
47,630
53,000
3.1 / (6.0)
4.2 / (11.1)
4.9 / (14.5)
5.6 / (7.6)
7.3 / (12.5)
11.1 / (5.8)
12.4 / (7.1)
GPM / (pd. Ft.) Low Flow
Total
13,840
19,360
22,320
25,360
33,140
48,820
54,020
(12°F ∆Tw)
Sens.
11,690
16,640
19,340
22,060
29,340
44,100
48,950
2.3 / (3.7)
3.3 / (6.8)
3.8 / (8.9)
4.3 / (4.7)
5.6 / (7.6)
8.3 / (3.4)
9.2 / (4.1)
13,510
18,750
21,580
24,820
32,320
49,770
54,740
GPM / (pd. Ft.) 72°FDB/60°FWB, 50% RH High Flow (8°F ∆Tw)
Total Sens. GPM / (pd. Ft.)
11,700
16,630
19,340
22,120
29,440
45,580
50,480
3.4 / (7.5)
4.7 / (13.6)
5.5 / (17.8)
6.3 / (9.5)
8.1 / (15.4)
12.6 / (7.4)
13.9 / (8.8)
Med. Flow
Total
12,390
17,180
19,740
22,710
29,420
42,980
47,200
(10°F ∆Tw)
Sens.
11,080
15,690
18,190
20,860
27,580
41,330
45,670
2.5 / (4.2)
3.5 / (7.7)
4.0 / (10.0)
4.6 / (5.4)
6.0 / (8.6)
8.7 / (3.7)
9.6 / (4.5)
Low Flow
GPM / (pd. Ft.) Total
11,120
15,320
17,510
20,120
25,810
33,790
37,580
(12°F ∆Tw)
Sens.
10,300
14,460
16,680
19,170
25,100
33,790
37,580
1.9 / (2.2)
2.6 / (4.5)
3.0 / (5.7)
3.4 / (3.1)
4.4 / (4.9)
5.8 / (1.6)
6.4 / (2.1)
GPM / (pd. Ft.)
Alternate Water Source Control Valve - Sized for Medium Flow @ 75°FDB/62.5°FWB EAT Conditions 2-way (standard) - Spring Actuated (Open/Close) Size / (Cv) Pressure Rating Total Unit PD
1/2" / (3.5)
3/4" / (3.5)
3/4" / (3.7)
3/4" / (3.7)
3/4" / (3.7)
1.0" / (8.0)
1.0" / (8.0)
300 psig
300 psig
300 psig
300 psig
300 psig
300 psig
300 psig
8.0 Ft.
14.6 Ft.
19.4 Ft.
14.2 Ft.
22.6 Ft.
10.4 Ft.
12.7 Ft.
1/2" / (5.0)
3/4" / (5.0)
3/4" / (5.0)
3/4" / (5.0)
3/4" / (5.0)
1.0" / (7.0)
1.0" / (7.0)
300 psig
300 psig
300 psig
300 psig
300 psig
300 psig
300 psig
7.1 Ft.
12.9 Ft.
17.0 Ft.
11.2 Ft.
17.5 Ft.
11.8 Ft.
14.4 Ft.
4 / 2.8 ft2
4 / 2.8 ft2
4/ 5.0 ft2
4/ 5.0 ft2
3-way (optional) - Spring Actuated (Open/Close) Size / (Cv) Pressure Rating Total Unit PD
- Alternate Water Source (45°F EWT)
13,000 4.2 / (10.7)
Performance Data
OHS Model
- 1 to 5 Ton "OHS"
Evaporator Coil, Alternate Water Source - Aluminum Fin, Copper Tube Rows/Face Area (ft2)
4 / 2.1 ft2
4 / 2.1 ft2
4 / 2.1 ft2
Evaporator Blower / Motor, Alternate Water Source - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys 1/4 Hp
1/3 Hp
1/2 Hp
1/2 Hp
3/4 Hp
1-1/2 Hp
2 Hp
CFM @ ext. st. press.
Horsepower
500 @ 0.5"
750 @ 0.5"
900 @ 0.5"
1,000 @ 0.5"
1,415 @ 0.5"
2,200 @ 0.5"
2,500 @ 0.5"
Drive Method
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Belt Driven
1-1/8" OD
1-1/8" OD
Connection Sizes, Alternate Water Source - Copper, (@ 75°FDB/62.5°FWB EAT flow rate conditions.) Chilled Water In/Out
5/8" OD
7/8" OD
7/8" OD
Air Technology Systems, Inc.
7/8" OD
7/8" OD
4-26
Alternate Water Source Performance Data
OHS Model
048D()-AWS
- 4 to 10 Ton "OHS"
072D()-AWS
084D()-AWS
(45°F EWT)
120D()-AWS
NET COOLING CAPACITY - BTU/H @ 45°F EWT, 0% Glycol Solution (includes motor heat @ std CFM & e.s.p. ratings) 80°FDB/67°FWB, 50% RH High Flow
Total
(8°F ∆Tw)
Sensible GPM / (pd. Ft.)
70,490
134,100
144,440
166,850
49,290
90,760
98,710
117,880
17.6 / (43.1)
33.5 / (46.3)
36.1 / (53.2)
41.8 / (18.6)
Med. Flow
Total
65,830
125,560
135,080
154,030
(10°F ∆Tw)
Sensible
47,200
87,010
94,600
112,150
13.2 / (25.1)
25.2 / (27.5)
27.1 / (31.5)
31.0 / (10.7)
61,480
117,370
126,560
139,290
GPM / (pd. Ft.) Low Flow
Total
(12°F ∆Tw)
Sensible GPM / (pd. Ft.)
45,200
83,420
90,820
105,460
10.4 / (15.8)
19.6 / (17.4)
21.2 / (20.1)
23.4 / (6.4)
51,880
99,080
106,720
121,940
75°FDB/62.5°FWB, 50% RH High Flow
Total
(8°F ∆Tw)
Sensible GPM / (pd. Ft.)
42,660
78,510
85,490
101,740
13.0/ (24.6)
24.8 / (26.9)
26.8 / (30.8)
30.8 / (10.6)
- Alternate Water Source (45°F EWT)
Med. Flow
Total
48,420
93,260
100,560
109,650
(10°F ∆Tw)
Sensible
40,30
75,670
82,420
95,250
9.8 / (14.5)
18.8 / (16.1)
20.3 / (18.5)
22.2 / (5.8)
44,630
87,270
94,830
97,640
GPM / (pd. Ft.) Low Flow
Total
(12°F ∆Tw)
Sensible
38,670
72,610
79,360
88,190
7.6 / (8.9)
14.6 / (10.2)
15.9 / (11.9)
16.6 / (3.4)
43,150
83,050
89,560
99,540
Air Technology Systems, Inc GPM / (pd. Ft.)
72°FDB/60°FWB, 50% RH
Total
High Flow (8°F ∆Tw)
Sensible
GPM / (pd. Ft.)
38,670
71,570
77,990
91,150
11.0 / (17.8)
20.9 / (19.6)
22.5 / (22.6)
25.2 / (7.4)
Med. Flow
Total
39,480
78,610
84,870
85,960
(10°F ∆Tw)
Sensible
36,380
69,090
75,240
82,660
8.0 / (10.0)
15.8 / (11.9)
17.2 / (13.7)
17.4 / (3.7)
Low Flow
GPM / (pd. Ft.) Total
35,020
71,630
77,770
67,580
(12°F ∆Tw)
Sensible
33,360
64,930
70,840
67,580
6.0 / (5.7)
12.0 / (7.2)
13.1 / (8.4)
11.6 / (1.6)
GPM / (pd. Ft.)
Alternate Water Source Control Valve - Sized for Medium Flow @ 75°FDB/62.5°FWB EAT Conditions 2-way (standard) - Spring Actuated (Open/Close) Size / (Cv)
1" / (8.0)
1" / (14.0)
1" / (14.0)
1" / (14.0)
Pressure Rating
300 psig
400 psig
400 psig
400 psig
Total Unit Pressure Drop
19.4 Ft.
20.7 Ft.
24.1 Ft.
12.5 Ft.
3-way (optional) - Spring Actuated (Open/Close) Size / (Cv)
1" / (7.0)
1" / (14.0)
1" / (14.0)
1" / (14.0)
Valve Pressure Rating
300 psig
400 psig
400 psig
400 psig
Total Unit Pressure Drop
17.0 Ft.
20.7 Ft.
24.1 Ft.
12.5 Ft.
4/ 6.7 ft2
4/ 6.7 ft2
4/ 10.0 ft2
Evaporator Coil, Alternate Water Source - Aluminum Fin, Copper Tube Rows/Face Area (ft2)
4/ 4.1 ft2
Evaporator Blower / Motor, Alternate Water Source - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys Horsepower CFM @ ext. st. press. Drive Method
1 Hp
1-1/2 Hp
2 Hp
3 Hp
1,800 @ 0.5"
3,000 @ 0.5"
3,350 @ 0.5"
4,400 @ 0.5"
Belt Driven
Belt Driven
Belt Driven
Belt Driven
Connection Sizes, Alternate Water Source - Copper, (@ 75°FDB/62.5°FWB EAT flow rate conditions.) Chilled Water In/Out
4-27
1-1/8" OD
1-1/8" OD
Air Technology Systems, Inc.
1-1/8" OD
1-3/8" OD
Alternate Water Source -
42°F/50°F EWT
012-AWS
018-AWS
024-AWS
032-AWS
040-AWS
048-AWS
060-AWS
072-AWS
084-AWS
120-AWS
High Flow
Total
26,260
35,660
40,630
46,540
59,330
96,270
104,840
153,410
165,430
191,860
(8°F ∆Tw)
Sensible
16,820
23,440
27,080
31,360
40,970
64,660
71,110
99,310
107,930
128,640
GPM/(Ft.)
6.6/(25.0)
8.9/(43.9)
10.1/(55.8)
11.6/(29.8)
14.8/(47.2)
24.0/(24.2)
26.2/(28.4)
38.3/(59.6)
41.3/(68.6)
42.0/(24.2)
Med Flow
Total
24,550
33,500
38,180
43,710
55,750
89,650
97,830
144,620
155,710
178,610
(10°F ∆Tw)
Sensible
16,030
22,450
25,960
30,010
39,270
61,650
67,920
95,310
103,520
122,630
GPM/(Ft.)
4.9/(14.8)
6.7/(25.8)
7.6/(32.9)
8.7/(17.6)
11.1/(27.7)
17.9/(14.1)
19.6/(16.6)
28.9/(35.7)
31.2/(41.0)
35.8/(14.1)
Low Flow
Total
22,660
31,170
35,790
40,430
52,300
81,320
59,560
135,610
146,250
161,960
(12°F ∆Tw)
Sensible
15,180
21,390
24,860
28,450
37,600
57,910
64,180
91,260
99,260
115,150
GPM/(Ft.)
3.8/(9.1)
5.2/(16.1)
6.0/(20.8)
6.7/(10.9)
8.7/(17.6)
13.6/(8.4)
15.0/(10.1)
22.6/(22.7)
24.5/(26.3)
27.2/(8.4)
012-AWS
018-AWS
024-AWS
032-AWS
040-AWS
048-AWS
060-AWS
072-AWS
084-AWS
120-AWS
75°FDB/62.5°FWB Total
19,450
26,760
30,590
35,200
45,190
72,100
79,070
115,660
124,650
143,530
(8°F ∆Tw)
Sensible
14,380
20,310
23,570
27,140
35,750
56,180
62,130
86,120
93,710
111,680
GPM/(Ft.)
4.9/(14.5)
6.7/(25.9)
7.6/(33.2)
8.8/(17.9)
11.3/(28.4)
18.1/(14.3)
19.9/(17.1)
28.9/(35.8)
31.2/(41.1)
Total
17,880
24,830
28,560
32,460
42,280
65,300
72,010
108,750
117,090
129,920
Sensible
13,620
19,360
22,540
25,730
24,220
52,790
58,560
82,780
90,030
104,910
GPM/(Ft.)
3.6/(8.2)
5.0/(15.1)
5.7/(19.3)
6.5/(10.2)
8.5/(16.7)
13.1/(7.9)
14.5/(9.6)
21.8/(21.4)
23.5/(24.5)
26.2/(7.9)
Total
16,370
22,860
26,690
29,890
39,060
58,870
65,240
101,470
110,240
117,060
Sensible
12,880
18,360
21,440
24,390
32,470
49,420
54,950
79,230
86,610
98,170
GPM/(Ft.)
2.8/(5.0)
3.8/(9.2)
4.4/(11.9)
5.0/(6.3)
6.5/(10.2)
9.9/(4.7)
11.0/(5.7)
17.0/(13.6)
18.5/(15.8)
19.8/(4.7)
012-AWS
018-AWS
024-AWS
032-AWS
040-AWS
048-AWS
060-AWS
072-AWS
084-AWS
120-AWS
Med Flow (10°F ∆Tw) Low Flow (12°F ∆Tw) 72°FDB/60°FWB
36.2/(14.3)
High Flow
Total
16,130
22,430
25,760
29,550
38,380
59,940
65,890
97,760
105,340
119,190
(8°F ∆Tw)
Sensible
12,960
18,450
21,470
24,590
32,650
50,840
56,300
78,590
85,540
100,990
GPM/(Ft.)
4.1/(10.4)
5.7/(19.0)
6.4/(24.0)
7.4/(13.0)
9.6/(21.0)
15.1/(10.2)
16.6/(12.3)
24.5/(26.4)
26.4/(30.3)
30.2/(10.2)
Med Flow
Total
14,790
20,650
23,870
27,110
35,430
53,890
59,500
91,990
99,230
107,110
(10°F ∆Tw)
Sensible
12,270
17,500
20,430
23,230
30,950
47,500
52,690
75,630
82,350
94,310
GPM/(Ft.)
3.0/(5.9)
4.2/(10.8)
4.8/(14.0)
5.4/(7.4)
7.1/(12.1)
10.8/(5.6)
12.0/(6.8)
18.5/(15.8)
20.0/(18.2)
Low Flow
Total
13,530
18,980
21,970
24,850
32,490
47,370
52,240
84,910
92,170
94,070
(12°F ∆Tw)
Sensible
11,590
16,540
19,310
21,920
29,140
43,510
48,160
71,880
78,490
86,340
GPM/(Ft.)
2.3/(3.4)
3.2/(6.6)
3.7/(8.6)
4.2/(4.5)
5.4/(7.3)
8.0/(3.2)
8.8/(3.8)
14.2/(9.9)
15.5/(11.4)
16.0/(3.2)
21.6/(5.6)
Cooling Capacities (BTU/H) for 50°F Chilled Water Entering the Cooling Coil 80°FDB/67°FWB
012-AWS
018-AWS
024-AWS
032-AWS
040-AWS
048-AWS
060-AWS
072-AWS
084-AWS
120-AWS
High Flow
Total
17,340
23,720
27,070
31,550
40,300
64,160
69,840
102,640
110,880
127,640
(8°F ∆Tw)
Sensible
12,970
18,360
21,350
24,670
32,580
51,150
56,420
77,640
84,770
101,610
GPM/(Ft.)
4.4/(11.6)
6.0/(20.6)
6.8/(26.0)
7.9/(14.5)
10.1/(22.7)
16.1/(11.4)
17.6/(13.4)
25.7/(28.3)
27.9/(32.7)
32.2/(11.4)
Med Flow
Total
15,870
22,110
25,390
29,130
36,840
58,670
64,760
96,430
103,990
116,670
(10°F ∆Tw)
Sensible
12,330
17,620
20,530
23,520
31,310
48,530
53,880
74,920
81,700
96,380
GPM/(Ft.)
3.2/(6.5)
4.5/(12.0)
5.1/(15.3)
5.8/(8.2)
7.6/(13.4)
11.8/(6.4)
13.1/(7.8)
19.4/(16.9)
21.0/(19.5)
23.6/(6.4)
Low Flow
Total
14,570
20,410
23,660
26,770
35,130
52,860
58,460
91,030
97,870
105,040
(12°F ∆Tw)
Sensible
11,730
16,780
19,640
22,320
29,840
45,480
50,480
72,410
78,760
90,280
GPM/(Ft.)
2.5/(4.0)
3.4/(7.4)
4.0/(9.7)
4.5/(5.1)
5.9/(8.3)
8.9/(3.8)
9.9/(4.6)
15.3/(10.9)
16.4/(12.5)
17.8/(3.8)
012-AWS
018-AWS
024-AWS
032-AWS
040-AWS
048-AWS
060-AWS
072-AWS
084-AWS
120-AWS
75°FDB/62.5°FWB High Flow
Total
12,100
16,730
19,200
22,380
28,770
43,580
45,430
75,480
80,860
86,480
(8°F ∆Tw)
Sensible
10,990
15,610
18,170
20,880
27,580
42,410
45,430
67,760
73,570
84,150
GPM/(Ft.)
3.1/(6.1)
4.2/(10.9)
4.8/(14.0)
5.7/(7.8)
7.2/(12.3)
11.0/(5.6)
11.5/(6.1)
19.0/(16.3)
20.4/(18.6)
Med Flow
Total
10,900
14,880
16,960
19,860
23,400
36,050
39,970
71,720
76,250
71,430
(10°F ∆Tw)
Sensible
10,270
14,430
16,690
19,290
23,400
36,050
39,970
65,350
70,550
71,430
GPM/(Ft.)
2.2/(3.3)
3.0/(5.8)
3.4/(7.4)
4.0/(4.2)
4.8/(5.7)
7.3/(2.7)
8.2/(3.3)
14.4/(9.9)
15.4/(11.2)
22.0/(5.6)
14.6/(2.7)
Low Flow
Total
8,710
12,380
14,420
15,370
20,380
30,000
33,350
54,330
59,290
59,330
(12°F ∆Tw)
Sensible
8,710
12,380
14,420
15,370
20,380
30,000
33,350
54,330
59,290
59,330
GPM/(Ft.)
1.5/(1.3)
2.1/(2.9)
2.4/(3.9)
2.6/(1.7)
3.5/(3.1)
5.1/(1.2)
5.7/(1.6)
9.2/(4.4)
10.0/(5.1)
10.2/(1.2)
012-AWS
018-AWS
024-AWS
032-AWS
040-AWS
048-AWS
060-AWS
072-AWS
084-AWS
120-AWS
72°FDB/60°FWB High Flow
Total
8,950
12,720
14,820
16,220
21,520
33,560
37,150
55,560
60,470
66,440
(8°F ∆Tw)
Sensible
8,950
12,720
14,820
16,220
21,520
33,560
37,150
55,560
60,470
66,440
GPM/(Ft.)
2.3/(3.5)
3.2/(6.6)
3.7/(8.7)
4.1/(4.3)
5.5/(7.3)
8.5/(3.5)
9.5/(4.3)
14.1/(9.5)
15.4/(11.1)
17.0/(3.5)
Med Flow
Total
7,930
11,260
13,120
14,070
18,640
27,890
30,910
49,330
53,790
55,100
(10°F ∆Tw)
Sensible
7,930
11,260
13,120
14,070
18,640
27,890
30,910
49,330
53,790
55,100
GPM/(Ft.)
1.6/(1.6)
2.3/(3.5)
2.7/(4.6)
2.9/(2.1)
3.8/(3.7)
5.7/(1.6)
6.4/(2.0)
10.0/(5.1)
11.0/(6.0)
- Alternate Water Source @ 42°F / 50°F EWT
High Flow
Performance Data
Cooling Capacities (BTU/H) for 42°F Chilled Water Entering the Cooling Coil 80°FDB/67°FWB
11.4/(1.6)
Low Flow
Total
6,690
9,550
11,140
11,500
15,340
20,870
23,350
41,390
45,320
41,060
(12°F ∆Tw)
Sensible
6,690
9,550
11,140
11,500
15,340
20,870
23,350
41,390
45,320
41,060
GPM/(Ft.)
1.1/(0.7)
1.6/(1.6)
1.9/(2.3)
2.0/(0.8)
2.6/(1.7)
3.6/(0.5)
4.1/(0.7)
7.0/(2.7)
7.7/(3.2)
7.2/(0.5)
(Note: The above Net Cooling capacities include standard motor heat @ standard CFM/e.s.p. as shown on page 4-24 & 4-25, Evaporator Blower/Motor.)
Air Technology Systems, Inc.
4-28
Electrical Data - Index Electrical Data
CeilAiR Ceiling AC's FLA / MCA / MFS INDEX MODEL TYPE ...........................................page
DX - Compressorized Systems
Free-Cooling & Alternate Water Source
- Index
Single Compressor Systems:
Single Circuit Systems:
• OHS-012 thru 040-AS........................................................ 5-2
• OHS-012 thru 040-HAR, HW, HG-FC/AWS......................... 5-7 • OHS-048 thru 060-AR, W, G-FC/AWS................................. 5-7
• OHS-012 thru 024-AR, W & G............................................ 5-2 • OHS-032 thru 060-AR, W & G............................................ 5-3 Dual Compressor Systems:
Dual Circuit Systems: • OHS-048 thru 120-DAR, DW, DG-FC/AWS......................... 5-8
• OHS-048 thru 120-DAR, DW & DG.................................... 5-4
Air Technology Systems, Inc DX - Air Handling Units
Chilled Water Systems
Single Circuit Systems:
• OHS-012 thru 120-C.......................................................... 5-9
• OHS-012 thru 060-AHU..................................................... 5-5 Dual Circuit Systems: • OHS-048 thru 120-DAHU................................................... 5-6
<< Electrical Data Notes >> 1) Electrical Data is based on standard performance and component selection per Section 4 of this brochure. Please consult your local Sales Representative for "special" equipment electrical data.
2) High Static Pressure Belt-Drive Option - Electrical Data in the pages to follow are based on Standard CFM's and External Static Pressures. Please Consult your local Sales Representative for component and electrical rating data for this Option.
5-1
Air Technology Systems, Inc.
Electrical Data OHS-012-AS FLA
MCA
MFS
OHS-018-AS FLA
MCA
OHS-024-AS
MFS
FLA
MCA
OHS-032-AS
MFS
OHS-040-AS
FLA
MCA
MFS
FLA
MCA
MFS
OHS-048-AS
OHS-060-AS
FLA
FLA
MCA
MFS
MCA
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
11.7
14.4
20
13.2
17.6
25
15.4
23.0
30
19.2
27.2
35
20.0
29.5
40
N/A
N/A
277/1/60
9.8
12.2
15
11.0
14.7
20
13.7
20.2
25
16.5
24.0
30
18.0
25.2
35
N/A
N/A
208/3/60
N/A
N/A
12.5
16.8
25
15.0
20.1
30
15.8
21.4
30
N/A
N/A
460/3/60
N/A
N/A
7.4
9.5
15
8.3
10.9
15
9.9
12.6
15
N/A
N/A
COOLING and ELECTRIC REHEAT/HEAT, with or without Humidifier 208/1/60
34.4
42.8
45
35.9
46.0
50
38.1
51.4
60
41.9
55.6
60
42.7
57.9
70
N/A
N/A
277/1/60
27.8
34.8
35
29.9
38.3
40
31.8
42.7
45
34.5
46.5
50
36.1
47.7
50
N/A
N/A
208/3/60
N/A
N/A
25.6
33.2
35
28.1
36.5
40
28.9
37.8
45
N/A
N/A
460/3/60
N/A
N/A
13.6
17.3
20
14.5
18.7
20
16.1
20.5
25
N/A
N/A
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
19.9
22.6
25
21.4
25.8
35
23.6
31.2
45
27.4
35.4
50
28.2
37.7
50
N/A
N/A
277/1/60
16.0
18.4
20
17.9
21.5
25
19.9
26.4
35
22.7
30.2
40
24.2
31.4
45
N/A
N/A
208/3/60
N/A
N/A
20.7
25.0
30
23.2
28.3
35
24.0
29.6
40
N/A
N/A
460/3/60
N/A
N/A
11.1
13.2
15
12.0
14.6
20
13.6
16.3
20
N/A
N/A
208/1/60
25.4
31.8
35
25.4
31.8
35
25.4
31.8
35
26.1
32.7
35
26.5
33.2
35
N/A
N/A
277/1/60
20.6
25.7
30
21.2
26.5
30
20.6
25.7
30
20.8
25.9
30
22.0
27.4
30
N/A
N/A
208/3/60
N/A
N/A
15.8
19.8
20
16.5
20.7
20
16.9
21.4
25
N/A
N/A
460/3/60
N/A
N/A
7.9
9.8
15
8.3
10.9
15
9.9
12.6
15
N/A
N/A
Model
FLA (OEM Rated)
OHS-012-AR, W, & G AR
W
G
MCA
OHS-018-AR, W, & G MFS
FLA (OEM Rated) AR
W
G
OHS-024-AR, W, & G
MCA
MFS
FLA (OEM Rated) AR
W
G
MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
8.8
8.0
9.0
11.5
15
9.9
8.3
10.4
14.3
20
12.1
10.1
12.7
19.7
30
277/1/60
7.6
6.9
7.7
10.0
15
8.3
7.0
8.7
12.0
15
10.3
8.6
10.8
16.8
25
208/3/60
N/A
N/A
9.3
8.2
9.6
13.5
20
460/3/60
N/A
N/A
4.9
4.4
5.1
7.0
15
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
31.5
30.7
31.7
39.9
40
32.6
31.0
33.1
42.7
45
34.8
32.8
35.4
48.1
50
277/1/60
25.6
24.9
25.8
32.6
35
27.2
25.8
27.6
35.6
40
28.4
26.7
28.9
39.3
45
208/3/60
N/A
N/A
22.4
21.3
22.7
29.9
35
460/3/60
N/A
N/A
11.2
10.6
11.3
14.8
15
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
17.0
16.2
17.2
19.7
25
18.1
16.5
18.6
22.5
30
20.3
18.3
20.9
27.9
277/1/60
13.8
13.1
13.9
16.2
20
15.1
13.8
15.5
18.8
25
16.5
14.8
17.0
23.0
40 30
208/3/60
N/A
N/A
17.5
16.4
17.8
21.7
30
460/3/60
N/A
N/A
8.6
8.1
8.8
10.7
15
- DX Compressorized Systems
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier)
MFS
Electrical Data
Model
- DX Compressorized Systems
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
25.4
25.4
25.4
31.8
35
25.4
25.4
25.4
31.8
35
25.4
25.4
25.4
31.8
35
277/1/60
20.6
20.6
20.6
25.7
30
21.2
21.2
21.2
26.5
30
20.6
20.6
20.6
25.7
30
208/3/60
N/A
N/A
15.8
15.8
15.8
19.8
20
460/3/60
N/A
N/A
7.9
7.9
7.9
9.8
15
34.8
33.6
35.4
48.1
50
COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
33.6
33.6
33.6
42.0
45
33.6
33.6
33.6
42.7
45
277/1/60
26.8
26.8
26.8
33.4
35
28.0
28.0
28.0
35.6
40
28.4
26.8
28.9
39.3
45
208/3/60
N/A
N/A
24.0
24.0
24.0
30.0
35
460/3/60
N/A
N/A
11.6
11.6
11.6
14.8
15
Air Technology Systems, Inc.
(*) Current Draws are given in the following order:
FLA
MCA
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
5-2
Electrical Data Electrical Data
Model
- DX Compressorized Systems
OHS-032-AR, W, & G FLA (OEM Rated) AR
W
G
MCA
OHS-040-AR, W, & G MFS
FLA (OEM Rated) AR
W
G
OHS-048-AR, W, & G
MCA
MFS
FLA (OEM Rated) AR
W
G
MCA
OHS-060-AR, W, & G MFS
FLA (OEM Rated) AR
W
G
MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
15.9
13.4
16.6
23.9
35
16.7
14.1
17.5
26.2
40
N/A
277/1/60
13.1
11.0
13.7
20.6
30
14.6
12.4
15.3
21.8
30
N/A
N/A
208/3/60
11.7
10.5
12.1
16.8
25
12.5
11.3
12.9
18.1
25
17.1
15.0
17.8
24.4
45
19.9
17.5
20.7
31.2
45
460/3/60
5.8
5.2
6.0
8.4
15
7.4
6.8
7.6
10.1
15
8.7
7.4
9.1
12.5
15
10.2
9.0
10.6
15.4
25
N/A
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
38.6
36.1
39.3
52.3
60
39.4
36.8
40.2
54.6
60
N/A
277/1/60
31.1
29.1
31.7
43.1
50
32.7
30.5
33.3
44.3
50
N/A
N/A
208/3/60
24.8
23.6
25.2
33.2
40
25.6
24.4
26.0
34.5
40
43.3
41.2
44.0
57.2
70
46.1
43.7
46.9
64.0
70
460/3/60
12.0
11.4
12.2
16.2
20
13.6
13.0
13.8
18.0
20
21.3
20.0
21.7
28.1
30
22.8
21.6
23.2
31.1
35
N/A
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
24.1
21.6
24.8
32.1
45
24.9
22.3
25.7
34.4
50
N/A
277/1/60
19.3
17.2
19.9
26.8
40
20.8
18.6
21.5
28.0
40
N/A
N/A
208/3/60
19.9
18.7
20.3
25.0
35
20.7
19.5
21.1
26.3
35
33.5
31.4
34.2
40.8
60
36.3
33.9
37.1
47.6
60
460/3/60
9.5
8.9
9.7
12.1
15
11.1
10.5
11.3
13.8
15
16.1
14.8
16.5
19.9
25
17.6
16.4
18.0
22.8
30
N/A
- DX Compressorized Systems
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
26.1
26.1
26.1
32.7
35
26.5
26.5
26.5
33.2
35
N/A
277/1/60
20.8
20.8
20.8
25.9
30
22.0
22.0
22.0
27.4
30
N/A
N/A
208/3/60
16.5
16.5
16.5
20.7
25
16.9
16.9
16.9
21.2
25
30.1
30.1
30.1
37.7
40
31.5
31.5
31.5
39.4
40
460/3/60
7.9
7.9
7.9
9.8
15
9.3
9.3
9.3
11.6
15
14.8
14.8
14.8
18.4
20
15.5
15.5
15.5
19.3
20
N/A
COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
38.6
36.1
39.3
52.3
60
39.4
36.8
40.2
54.6
60
N/A
277/1/60
31.1
29.1
31.7
43.1
50
32.7
30.5
33.3
44.3
50
N/A
N/A
208/3/60
24.8
24.7
25.2
33.2
40
25.6
25.1
26.0
34.5
40
46.5
46.5
46.5
58.2
70
47.9
47.9
47.9
64.0
70
460/3/60
12.0
11.6
12.2
16.2
20
13.6
13.0
13.8
18.0
20
22.2
22.2
22.2
28.1
30
22.9
22.9
23.2
31.1
35
Air Technology Systems, Inc
5-3
Air Technology Systems, Inc.
N/A
Electrical Data
- DUAL DX
FLA (OEM rated) DAR
DW
DG
MCA
OHS-072-DAR, DW, & DG MFS
FLA (OEM rated) DAR
DW
DG
MCA
OHS-084-DAR, DW, & DG MFS
FLA (OEM rated) DAR
DW
DG
MCA
OHS-120-DAR, DW, & DG MFS
FLA (OEM rated) DAR
DW
DG
MCA
MFS
Electrical Data
OHS-048-DAR, DW, & DG Model
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
16.7
14.5
17.3
22.9
30
22.7
20.3
23.5
31.0
40
29.3
25.7
30.5
40.7
50
37.9
33.1
39.5
55.3
70
460/3/60
8.6
7.5
8.9
11.7
15
11.6
10.4
12.0
15.7
20
14.9
13.1
15.5
20.6
30
19.2
16.8
20.0
27.1
35
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
36.3
35.2
36.6
47.1
50
40.2
39.0
40.6
52.4
60
44.3
42.5
44.9
58.5
70
49.5
47.1
50.3
67.4
80
460/3/60
17.9
17.3
18.0
23.1
25
19.8
19.2
20.0
25.7
30
21.9
21.0
22.2
28.8
35
24.5
23.3
24.9
32.8
40
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
33.1
30.9
33.7
39.3
45
36.9
34.5
37.7
45.2
50
43.5
39.9
44.7
54.9
60
52.1
47.3
53.7
69.5
80
460/3/60
16.0
14.9
16.3
19.1
20
18.0
16.8
18.4
22.1
25
21.3
19.5
21.9
27.0
35
25.6
23.2
26.4
33.5
40
208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
29.7
29.7
29.7
37.2
40
31.5
31.5
31.5
39.4
45
33.1
33.1
33.1
41.4
45
37.9
34.9
39.5
55.3
70
460/3/60
14.6
14.6
14.6
18.2
20
15.5
15.5
15.5
19.3
25
16.3
16.3
16.3
20.6
25
19.2
17.2
20.0
27.1
35
COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
46.1
46.1
46.1
57.7
60
45.7
45.7
45.7
57.2
60
47.3
47.3
47.3
59.2
70
52.1
49.1
53.7
69.5
80
460/3/60
22.0
22.0
22.0
27.4
30
21.9
21.9
21.9
27.3
30
22.7
22.7
22.7
26.7
35
25.6
23.6
26.4
33.5
40
Dual Compressor Systems with C-Tech-10 Microprocessor (see Note-1) OHS-048-DAR, DW, & DG Model
FLA (OEM rated) DAR
DW
DG
MCA
OHS-072-DAR, DW, & DG MFS
FLA (OEM rated) DAR
DW
DG
MCA
OHS-084-DAR, DW, & DG MFS
FLA (OEM rated) DAR
DW
DG
MCA
OHS-120-DAR, DW, & DG MFS
FLA (OEM rated) DAR
DW
DG
MCA
MFS
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
42.9
40.7
43.5
55.7
60
48.9
46.5
49.7
63.8
70
55.5
51.9
56.7
73.5
80
64.1
59.3
65.7
88.1
100
460/3/60
21.2
20.1
21.5
27.4
30
24.2
23.0
24.6
31.4
35
27.5
25.7
28.1
36.3
40
31.8
29.4
32.6
42.8
45
COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
46.1
46.1
46.1
57.7
60
48.9
46.5
49.7
63.8
70
55.5
51.9
56.7
73.5
80
64.1
59.3
65.7
88.1
100
460/3/60
22.0
22.0
22.0
27.4
30
24.2
23.0
24.6
31.4
35
27.5
25.7
28.1
36.3
40
31.8
29.4
32.6
42.8
45
Note-1: Dual compressor systems incorporating C-Tech-10 controls provide 2(two) compressor stages of Cooling and 2(two) compressor stages of Dehumidification. The A-Tech-1.2 and A-Tech-20 controls provide 2(two) compressor stages of Cooling and 1(one) compressor stage of Dehumidification. Therefore, electrical data for dual compressor systems with dehumidification mode (reheat) is controller dependent as shown above.
Air Technology Systems, Inc.
(*) Current Draws are given in the following order:
FLA
MCA
- Dual DX & Remote Air Cooled Condensers
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier)
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
5-4
Electrical Data Electrical Data
Model
OHS-012-AHU FLA
MCA
- Air Cooled "AHU / RCU" OHS-018-AHU
MFS
FLA
MCA
OHS-024-AHU MFS
OHS-032-AHU
FLA
MCA
MFS
FLA
MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
2.7
3.4
15
2.7
3.4
15
2.7
3.4
15
3.4
4.3
15
277/1/60
2.5
3.1
15
2.5
3.1
15
2.5
3.1
15
2.7
3.4
15
208/3/60
2.7
3.4
15
2.7
3.4
15
2.7
3.4
15
3.4
4.3
15
460/3/60
1.6
2.0
15
1.6
2.0
15
1.6
2.0
15
1.6
2.0
15
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
25.4
31.8
35
25.4
31.8
35
25.4
31.8
35
26.1
32.7
35
277/1/60
20.6
25.7
30
20.6
25.7
30
20.6
25.7
30
20.8
25.9
30
208/3/60
15.8
19.8
20
15.8
19.8
20
15.8
19.8
20
16.5
20.7
25
460/3/60
7.9
9.8
15
7.9
9.8
15
7.9
9.8
15
7.9
9.8
15
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
10.9
13.6
15
10.9
13.6
15
10.9
13.6
15
11.6
14.5
15
277/1/60
8.7
10.9
15
8.7
10.9
15
8.7
10.9
15
8.9
11.1
15
208/3/60
10.9
13.6
15
10.9
13.6
15
10.9
13.6
15
11.6
14.5
15
460/3/60
5.3
6.6
15
5.3
6.6
15
5.3
6.6
15
5.3
6.6
15
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier)
- Air Cooled ("AHU / RCU")
208/1/60
25.4
31.8
35
25.4
31.8
35
25.4
31.8
35
26.1
32.7
35
277/1/60
20.6
35.7
30
20.6
25.7
30
20.6
25.7
30
20.8
25.9
30
208/3/60
15.8
19.8
20
15.8
19.8
20
15.8
19.8
20
16.5
20.7
25
460/3/60
7.9
9.8
15
7.9
9.8
15
7.9
9.8
15
7.9
9.8
15
COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
33.6
42.0
45
33.6
42.0
45
33.6
42.0
45
34.3
42.9
45
277/1/60
26.8
33.4
35
26.8
33.4
35
26.8
33.4
35
27.7
33.7
35
208/3/60
24.0
30.0
30
24.0
30.0
30
24.0
30.0
30
24.7
30.9
35
460/3/60
11.6
14.5
15
11.6
14.5
15
11.6
14.5
15
11.6
14.5
15
Air Technology Systems, Inc Model
OHS-040-AHU
FLA
MCA
OHS-048-AHU
MFS
FLA
MCA
OHS-060-AHU
MFS
FLA
MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
3.8
4.8
15
N/A
277/1/60
3.9
4.9
15
N/A
N/A
208/3/60
3.8
4.8
15
3.9
4.9
15
5.3
6.6
15
460/3/60
3.0
3.8
15
2.2
2.8
15
2.9
3.6
15
N/A
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
26.5
33.2
35
N/A
N/A
277/1/60
22.0
27.4
30
N/A
N/A
208/3/60
16.9
21.2
25
30.1
37.7
40
31.5
39.4
40
460/3/60
9.3
11.6
15
14.8
18.4
20
15.5
19.3
20
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
12.0
15.0
20
N/A
N/A
277/1/60
10.1
12.6
15
N/A
N/A
208/3/60
12.0
15.0
20
20.3
25.4
30
21.7
27.1
30
460/3/60
6.7
8.4
15
9.6
12.0
15
10.3
12.9
15
(*) Current Draws are given in the following order:
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) N/A
26.5
33.2
35
N/A
277/1/60
22.0
27.4
30
208/3/60
16.9
21.2
25
30.1
37.7
40
31.5
39.4
40
460/3/60
9.3
11.6
15
14.8
18.4
20
15.5
19.3
20
N/A
COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER
5-5
208/1/60
34.7
43.4
45
N/A
277/1/60
28.2
35.2
40
N/A
N/A
208/3/60
25.1
31.4
35
46.5
58.2
60
47.9
59.9
60
460/3/60
13.0
16.2
20
22.2
27.7
30
22.9
28.6
30
N/A
Air Technology Systems, Inc.
MCA
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
208/1/60
N/A
FLA
Electrical Data OHS-048-DAHU FLA
MCA
OHS-072-DAHU
MFS
FLA
MCA
OHS-084-DAHU
MFS
FLA
MCA
OHS-120-DAHU
MFS
FLA
MCA
Electrical Data
Model
- Air Cooled "DAHU / DRCU MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
208/3/60
3.5
4.4
15
5.3
6.6
15
6.9
8.6
15
8.7
10.9
15
460/3/60
2.0
2.5
15
2.9
3.6
15
3.7
4.6
15
4.6
5.8
15
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
N/A
277/1/60
N/A
N/A
N/A
N/A
N/A
N/A
N/A
208/3/60
29.7
37.2
40
31.5
39.4
45
33.1
41.4
45
34.9
43.7
45
460/3/60
14.6
18.2
20
15.5
19.3
25
16.3
20.3
25
17.2
21.4
25
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
19.9
24.9
25
19.5
24.4
30
21.1
26.4
30
22.9
28.6
30
460/3/60
9.4
11.8
15
9.3
11.6
15
10.1
12.6
15
11.0
13.8
15
- Air Cooled ("DAHU / DRCU")
208/3/60
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
N/A
277/1/60
N/A
N/A
N/A
N/A
N/A
N/A
N/A
208/3/60
29.7
37.2
40
31.5
39.4
45
33.1
41.4
45
34.9
43.7
45
460/3/60
14.6
18.2
20
15.5
19.3
25
16.3
20.3
25
17.2
21.4
25
COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
208/3/60
46.1
57.7
60
45.7
57.2
60
47.3
59.2
60
49.1
61.4
70
460/3/60
22.0
27.4
30
21.9
27.3
30
22.7
28.3
30
23.6
29.4
30
(*) Current Draws are given in the following order:
FLA
MCA
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
Air Technology Systems, Inc.
5-6
Electrical Data
- Free-Cooling & Alternate Water Source
Electrical Data
OHS-012-HAR, HW, & HG AWS or FC
Model
FLA (OEM rated) HAR
HW
HG
MCA
OHS-018-HAR, HW, & HG AWS or FC MFS
FLA (OEM rated) HAR
HW
HG
9.1
11.2
OHS-024-HAR, HW, & HG AWS or FC
MCA
MFS
15.1
20
FLA (OEM rated) HAR
HW
HG
14.1
12.1
14.7
MCA
MFS
21.7
30
COOLING ONLY, with or without Hot Water or Steam Reheat 208/1/60
9.1
8.3
9.3
11.8
15
10.7
277/1/60
N/A
N/A
N/A
208/3/60
N/A
N/A
8.7
7.6
9.0
12.9
20
460/3/60
N/A
N/A
4.6
4.1
4.8
6.7
15
36.8
34.8
37.4
50.1
60
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
31.8
31.0
32.0
40.2
45
33.4
31.8
33.9
43.5
45
277/1/60
N/A
N/A
N/A
208/3/60
N/A
N/A
21.8
20.7
22.1
29.3
30
460/3/60
N/A
N/A
10.9
10.3
11.0
14.5
15
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
17.3
16.5
17.5
20.0
25
18.9
17.3
19.4
23.3
30
22.3
20.3
- Free-Cooling & Alternate Water Source
277/1/60
N/A
N/A
208/3/60
N/A
N/A
16.9
15.8
460/3/60
N/A
N/A
8.3
7.8
27.4
27.4
22.9
29.9
40
17.2
21.1
25
8.5
10.4
15
27.4
34.3
35
N/A
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
25.7
25.7
25.7
32.2
35
26.2
26.2
26.2
32.8
35
277/1/60
N/A
N/A
N/A
208/3/60
N/A
N/A
15.2
15.2
15.2
19
20
460/3/60
N/A
N/A
7.6
7.6
7.6
9.5
15
(*) Current Draws are given in the following order:
COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER
FLA
MCA
MFS
Air Technology Systems, Inc 208/1/60
33.9
33.9
33.9
42.4
45
34.4
34.4
34.4
43.5
45
36.8
35.6
277/1/60
N/A
N/A
208/3/60
N/A
N/A
23.4
23.4
460/3/60
N/A
N/A
11.3
11.3
Model
OHS-032-HAR, HW, & HG AWS or FC
FLA (OEM rated) HAR
HW
HG
MCA
FLA (OEM rated) HAR
HW
HG
50.1
60
23.4
29.3
30
11.3
14.5
15
N/A
OHS-040-HAR, HW, & HG AWS or FC
MFS
37.4
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
OHS-048-AR, W, & G AWS or FC
MCA
MFS
28.0
45
FLA (OEM rated) AR
W
G
MCA
OHS-060 AR, W, & G AWS or FC
MFS
FLA (OEM rated) AR
W
G
MCA
MFS
COOLING ONLY, with or without Hot Water or Steam Reheat 208/1/60
17.2
14.7
277/1/60
17.9
25.2
40
18.5
15.9
N/A
19.3
N/A
N/A
N/A
N/A
N/A
208/3/60
10.4
9.2
10.8
15.5
25
12.2
11.0
12.6
17.8
25
18.5
16.4
19.2
25.8
40
21.5
19.1
22.3
32.8
50
460/3/60
5.5
4.9
5.7
8.1
15
6.4
5.8
6.6
9.1
15
9.4
8.1
9.8
13.5
20
11.0
9.8
11.4
16.2
25
42.0
56.4
60
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
39.9
37.4
277/1/60
40.6
53.6
60
41.2
38.6
N/A
N/A
N/A
N/A
N/A
N/A
208/3/60
23.5
22.3
23.9
31.9
35
25.3
24.1
25.7
34.2
40
44.7
42.6
45.4
58.6
60
47.7
45.3
48.5
65.6
70
460/3/60
11.7
11.1
11.9
15.9
20
12.6
12.0
12.8
17.0
20
22.0
20.7
22.4
28.8
30
23.6
22.4
24.0
31.9
35
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
25.4
22.9
277/1/60
26.1
33.4
45
26.7
24.1
N/A
27.5
36.2
50
N/A
N/A
N/A
N/A
N/A
208/3/60
18.6
17.4
19.0
23.7
30
20.4
19.2
20.8
26.0
35
34.9
32.8
35.6
42.2
50
37.9
35.5
38.7
49.2
60
460/3/60
9.2
8.6
9.4
11.8
15
10.1
9.5
10.3
12.8
15
16.8
15.5
17.2
20.6
25
18.4
17.2
18.8
23.6
30
35.4
45
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
27.4
27.4
277/1/60
27.4
34.3
40
28.3
28.3
N/A
28.3
N/A
N/A
N/A
N/A
N/A
208/3/60
15.2
15.2
15.2
19.0
25
16.6
16.6
16.6
20.8
25
31.5
31.5
31.5
39.4
40
33.1
33.1
33.1
41.4
50
460/3/60
7.6
7.6
7.6
9.5
15
8.3
8.3
8.3
10.3
15
15.5
15.5
15.5
19.3
20
16.3
16.3
16.3
20.3
25
38.6
42.0
56.4
60
COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
39.9
37.4
277/1/60
5-7
40.6
53.6
60
41.2
N/A
N/A
N/A
N/A
N/A
N/A
208/3/60
23.5
23.4
23.9
31.9
35
25.3
24.8
25.7
34.2
40
47.9
47.9
47.9
59.9
60
49.5
49.5
49.5
65.6
70
460/3/60
11.7
11.3
11.9
15.9
20
12.6
12.0
12.8
17.0
20
22.9
22.9
22.9
28.8
30
23.7
23.7
24.0
31.9
35
Air Technology Systems, Inc.
Electrical Data OHS-048-DAR, DW, & DG AWS or FC FLA (OEM rated) DAR
DW
DG
MCA
OHS-072-DAR, DW, & DG AWS or FC MFS
FLA (OEM rated) DAR
DW
DG
MCA
OHS-084-DAR, DW, & DG AWS or FC MFS
FLA (OEM rated) DAR
DW
DG
MCA
OHS-120-DAR, DW, & DG AWS or FC MFS
FLA (OEM rated) DAR
DW
DG
MCA
MFS
COOLING ONLY, with or without Hot Water or Steam Reheat 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
17.1
14.9
17.7
23.3
30
22.7
20.3
23.5
31.0
40
29.3
25.7
30.5
40.7
50
37.9
33.1
39.5
55.3
70
460/3/60
8.8
7.7
9.1
11.9
15
11.6
10.4
12.0
15.7
20
14.9
13.1
15.5
20.6
25
19.2
16.8
20.0
27.1
35
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
36.7
35.6
37.0
47.5
50
40.2
39.0
40.6
52.4
60
44.3
42.5
44.9
58.5
60
49.5
47.1
50.3
67.4
80
460/3/60
18.1
17.5
18.2
23.3
25
19.8
19.2
20.0
25.7
30
21.9
21.0
22.2
28.8
30
24.5
23.3
24.9
32.8
35
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
33.5
31.3
34.1
39.7
40
36.9
34.5
37.7
45.2
50
43.5
39.9
44.7
54.9
60
52.1
47.3
53.7
69.5
90
460/3/60
16.2
15.1
16.5
19.3
20
18.0
16.8
18.4
22.1
25
21.3
19.5
21.9
27.0
30
25.6
23.2
26.4
33.5
40
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
30.1
30.1
34.4
37.7
40
31.5
31.5
42.4
39.4
40
33.1
33.1
33.1
41.4
50
37.9
34.9
39.5
55.3
70
460/3/60
14.8
14.8
16.9
18.4
20
15.5
15.5
21.4
19.3
20
16.3
16.3
16.3
20.6
25
19.2
17.2
20.0
27.1
35
COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
46.5
46.5
46.5
58.2
60
45.7
45.7
57.2
57.2
60
47.3
47.3
47.3
59.2
60
52.1
49.1
53.7
69.5
90
460/3/60
22.2
22.2
22.2
27.7
30
21.9
21.9
28.3
27.3
30
22.7
22.7
22.7
28.8
30
25.6
23.6
26.4
33.5
40
Dual Compressor Systems with C-Tech-10 Microprocessor (see Note-1) Model
OHS-048-DAR, DW, & DG AWS or FC FLA (OEM rated) DAR
DW
DG
MCA
OHS-072-DAR, DW, & DG AWS or FC MFS
FLA (OEM rated) DAR
DW
DG
MCA
OHS-084-DAR, DW, & DG AWS or FC MFS
FLA (OEM rated) DAR
DW
DG
MCA
OHS-120-DAR, DW, & DG -AWS or FC
MFS
FLA (OEM rated) DAR
DW
DG
MCA
MFS
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
43.3
41.1
43.9
56.1
60
48.9
46.5
49.7
63.8
70
55.5
51.9
56.7
73.5
80
64.1
59.3
65.7
88.1
100
460/3/60
21.4
20.3
21.7
27.6
30
24.2
23.0
24.6
31.4
35
27.5
25.7
28.1
36.3
40
31.8
29.4
32.6
42.8
45
COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
208/3/60
46.5
46.5
46.5
58.2
60
48.9
46.5
68.6
63.8
70
55.5
51.9
56.7
73.5
80
64.1
59.3
65.7
88.1
100
460/3/60
22.2
22.2
22.2
27.7
30
24.2
23.0
34.0
31.4
35
27.5
25.7
58.1
36.3
40
31.8
29.4
32.6
42.8
45
Note-1: Dual compressor systems incorporating C-Tech-10 controls provide 2(two) compressor stages of Cooling and 2(two) compressor stages of Dehumidification. The A-Tech-1.2 and A-Tech-20 controls provide 2(two) compressor stages of Cooling and 1(one) compressor stage of Dehumidification. Therefore, electrical data for dual compressor systems with dehumidification mode (reheat) is controller dependent as shown above.
Air Technology Systems, Inc.
- Free-Cooling & Alternate Water Source
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
Electrical Data
Model
- Free-Cooling & Alternate Water Source
(*) Current Draws are given in the following order:
FLA
MCA
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
5-8
Electrical Data Electrical Data
Model
OHS-012-C FLA
MCA
- Chilled Water Systems
OHS-018-C MFS
FLA
MCA
OHS-024-C MFS
FLA
MCA
OHS-032-C
OHS-040-C
MFS
FLA
MCA
MFS
FLA
MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
2.7
3.4
15
2.7
3.4
15
2.7
3.4
15
3.4
4.3
15
3.8
4.8
15
277/1/60
2.5
3.1
15
2.5
3.1
15
2.5
3.1
15
2.7
3.4
15
3.9
4.9
15
208/3/60
2.7
3.4
15
2.7
3.4
15
2.7
3.4
15
3.4
4.3
15
3.8
4.8
15
460/3/60
1.6
2.0
15
1.6
2.0
15
1.6
2.0
15
1.6
2.0
15
3.0
3.8
15
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
25.4
31.8
35
25.4
31.8
35
25.4
31.8
35
26.1
32.7
35
26.5
33.2
35
277/1/60
20.6
25.7
30
20.6
25.7
30
20.6
25.7
30
20.8
25.9
30
22.0
27.4
30
208/3/60
15.8
19.8
20
15.8
19.8
20
15.8
19.8
20
16.5
20.7
25
16.9
21.2
25
460/3/60
7.9
9.8
15
7.9
9.8
15
7.9
9.8
15
7.9
9.8
15
9.3
11.6
15
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
10.9
13.6
15
10.8
13.6
15
10.9
13.6
15
11.6
14.5
15
12.0
15.0
20
277/1/60
8.7
10.9
15
8.7
10.9
15
8.7
10.9
15
8.9
11.1
15
10.1
12.6
15
208/3/60
10.9
13.6
15
10.9
13.6
15
10.9
13.6
15
11.6
14.5
15
12.0
15.0
20
460/3/60
5.3
6.6
15
5.3
6.6
15
5.3
6.6
15
5.3
6.6
15
6.7
8.4
15
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier)
- Chilled Water Sysetms
208/1/60
25.4
31.8
35
25.4
31.8
35
25.4
31.8
35
26.1
32.7
35
26.5
33.2
35
277/1/60
20.6
25.7
30
20.6
25.7
30
20.6
25.7
30
20.8
25.9
30
22.0
27.4
30
208/3/60
15.8
19.8
20
15.8
19.8
20
15.8
19.8
20
16.5
20.7
25
16.9
21.2
25
460/3/60
7.9
9.8
15
7.9
9.8
15
7.9
9.8
15
7.9
9.8
15
9.3
11.6
15
33.6
42.0
45
34.3
42.9
45
34.7
43.4
45
COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
33.6
42.0
45
33.6
42.0
45
Air Technology Systems, Inc 277/1/60
26.8
33.4
35
26.8
33.4
35
26.8
33.4
35
27.0
33.7
35
28.2
35.2
40
208/3/60
24.0
30.0
30
24.0
30.0
30
24.0
30.0
30
24.7
30.9
35
25.1
31.4
35
460/3/60
11.6
14.5
15
11.6
14.5
15
11.6
14.5
15
11.6
14.5
15
13.0
16.2
20
MFS
FLA
MFS
FLA
MFS
FLA
MFS
FLA
Model
OHS-048-C
FLA
MCA
OHS-060-C MCA
OHS-072-C MCA
OHS-084-C MCA
OHS-120-C MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
N/A N/A
208/3/60
3.9
4.9
15
5.3
6.6
15
5.3
6.6
15
6.9
8.6
15
8.7
10.9
15
460/3/60
2.2
2.8
15
2.9
3.6
15
2.9
3.6
15
3.7
4.6
15
4.6
5.8
15
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
N/A N/A
208/3/60
30.1
37.7
40
31.5
39.4
40
31.5
39.4
45
33.1
41.4
45
34.9
43.7
45
460/3/60
14.8
18.4
20
15.5
19.3
20
15.5
19.3
25
16.3
20.3
25
17.2
21.4
25
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
N/A N/A
208/3/60
20.3
25.4
30
21.7
27.1
30
19.5
24.4
30
21.1
26.4
30
22.9
28.6
30
460/3/60
9.6
12.0
15
10.3
12.9
15
9.3
11.6
15
10.1
12.6
15
11.0
13.8
15
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
N/A N/A
208/3/60
30.1
37.7
40
31.5
39.4
40
31.5
39.4
45
33.1
41.4
45
34.9
43.7
45
460/3/60
14.8
18.4
20
15.5
19.3
20
15.5
19.3
25
16.3
20.3
25
17.2
21.4
25
COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER
5-9
208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
N/A N/A
208/3/60
46.5
58.2
60
47.9
59.9
60
45.7
57.2
60
47.3
59.2
60
49.1
61.4
70
460/3/60
22.2
27.7
30
22.9
28.6
30
21.9
27.3
30
22.7
28.3
30
23.6
29.4
30
Air Technology Systems, Inc.
(*) Current Draws are given in the following order:
FLA
MCA
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
Dimensional Data -
Standard "OHS" Configurations
(Drwg. #)
MODEL TYPE .................page
Physical Data / Connection Sizes
Water / Glycol Cooled Systems
Unit Net Weights (lbs) Table ......................................... 6-2
DX - Refrigerant Connection Sizes ............................... 6-3 Source Water/Glycol Connection Sizes ......................... 6-3 Chilled Water Connection Sizes . .................................. 6-3
Air Cooled Systems OHS-012/032-AS "Spot Cooler Configuration"................................ 6-4 "Ducted Configuration"....................................... 6-4 OHS-040-AS "Spot Cooler Configuration"................................ 6-4 "Ducted Configuration"....................................... 6-5 OHS-012/032-AR "Spot Cooler Configuration"................................ 6-5 "Ducted Configuration"....................................... 6-5 OHS-040-AR "Spot Cooler Configuration"................................ 6-6 "Ducted Configuration (direct-drive)"................... 6-6
(8) (9)
OHS-012/040-HAR (Ducted, belt-drive).................... 6-6 OHS-040/060-AR ..................................................... 6-6
(10) (11)
OHS-048/084-DAR . ................................................. 6-7 OHS-120-DAR . ........................................................ 6-7
OHS-012/032-W/G "Spot Cooler Configuration"................................ 6-10 "Ducted Configuration"....................................... 6-10 OHS-040-W/G "Spot Cooler Configuration"................................ 6-10 "Ducted Configuration (direct-drive)"................... 6-11 OHS-012/040-HW/HG & FC "Ducted Configuration (belt-drive)"...................... 6-11
(22)
OHS-048/060-W/G & FC .......................................... 6-11
(23) (24)
OHS-048/084-DW/DG & FC ..................................... 6-12 OHS-120-DW/DG . ................................................... 6-12
(25)
OHS-120-DW/DG-FC ............................................... 6-13
Chilled Water Systems (26) (27) (28)
OHS-012/040-C "Spot Cooler Configuration"................................ 6-14 "Ducted Configuration"....................................... 6-14 OHS-012/040-HC "Belt-Driven Ducted Configuration"..................... 6-14
(29) (30) (31)
OHS-048/060-C ........................................................ 6-15 OHS-072/084-C ........................................................ 6-15 OHS-120-C ............................................................... 6-15
- Index
(1) (2) (3) (4) (5) (6) (7) (8)
(18) (19) (20) (21) (21)
Dimensional Data
"Index"
DX - Air Handling Units (12) (13) (14)
OHS-012/040-AHU "Spot Cooler Configuration"................................ 6-8 "Ducted Configuration"....................................... 6-8 OHS-012/040-HAHU "Belt-Driven Ducted Configuration"..................... 6-8
(15)
OHS-048/060-AHU ................................................ 6-9
(16) (17)
OHS-048/084-DAHU . .............................................. 6-9 OHS-120-DAHU . ..................................................... 6-9
Air Technology Systems, Inc.
6-1
Physical Data Dimensional Data - Physical Data (Unit Weight lbs.)
OHS-( )-( ) OHS-( )-AS OHS-( )-AR OHS-( )-HAR OHS-( )-AHU OHS-( )-HAHU OHS-( )-DAR OHS-( )-DAHU OHS-( )-W OHS-( )-HW OHS-( )-DW OHS-( )-G OHS-( )-HG OHS-( )-DG OHS-( )-C OHS-( )-HC OHS-( )-( )-FC OHS-( )-( )-AWS
Unit Weights (lbs.)
Approximate Unit Physical Weight (Cooling Only! Please see notes, given in lbs.) 012 018 024 032 040 048 060 210 215 220 255 265 160 165 170 205 215 370 380 185 190 195 230 240 120 120 120 155 165 270 280 135 140 145 180 190 420 320 180 200 210 245 260 395 405 205 225 235 265 285 440 180 200 210 245 260 395 405 205 225 235 265 285 440 120 125 125 160 170 280 290 140 145 150 185 190 245 265 275 300 310 500 510 225 230 235 270 280 460 470
072 450 350 470 470 365 570 550
084 510 410 550 550 415 660 610
120 580 480 625 625 495 745 705
Air Technology Systems, Inc
6-2
Table Legend: Note-1: ----- means unit not available in this configuration and/or size. Note-2: Model "OHS" weights shown above are for Cooling Only Evaporator units without receivers. If Humidity Options (steam humidifier; electric, hot gas, hot water or steam reheat) and/or -30°F flooded receiver(s) are applicable, please add the following approximate weights to the Cooling Only model "OHS" weights shown above:
Features/Options
Model Sizes 012/040 048/060 048/120-D( )
Adding Features:
Net Additions
Steam Humidifier
+ 20 lbs
+ 25 lbs
+ 25 lbs
Electric Reheat Hot Gas Reheat Hot Water Reheat Steam Reheat
+ 15 lbs + 30 lbs + 30 lbs + 30 lbs
+ 25 lbs + 35 lbs + 35 lbs + 35 lbs
+ 25 lbs + 45 lbs + 45 lbs + 45 lbs
-30 Flooded Condensate Pump
+ 30 lbs + 10 lbs
+ 50 lbs + 10 lbs
+ 100 lbs + 10 lbs
Air Technology Systems, Inc.
Piping Connection Sizes Model
OHS-018-( )
OHS-024-( )
OHS-032-( )
OHS-040-( )
OHS-048-( )
OHS-060-( )
"A"
"B'
"C"
"A"
"B'
"C"
"A"
"B'
"C"
"A"
"B'
"C"
"A"
"B'
"C"
"A"
"B'
"C"
"A"
"B'
"C"
OHS-( )-AR
----
3/8
1/2
----
3/8
1/2
----
3/8
5/8
----
1/2
5/8
----
1/2
7/8
----
1/2
7/8
----
1/2
7/8
OHS-( )-AHU
5/8
3/8
----
3/4
3/8
----
3/4
3/8
----
3/4
1/2
----
7/8
1/2
----
7/8
1/2
----
7/8
1/2
----
Legend:
Refrigerant Piping connection Sizes Dual Compressor / Circuit Systems Sizes giver are per circuit OD Model
OHS-048-( )
OHS-072-( )
OHS-084-( )
OHS-120-( )
"A"
"B'
"C"
"A"
"B'
"C"
"A"
"B'
"C"
"A"
"B'
"C"
OHS-( )-DAR
----
3/8
5/8
----
1/2
5/8
----
1/2
7/8
----
1/2
7/8
OHS-( )-DAHU
3/4
3/8
----
7/8
1/2
----
7/8
1/2
----
7/8
1/2
----
"A" "B" "C"
= Suction Line, inches OD Copper = Liquid Line, inches OD Copper = Hot Gas, inches OD Copper
Notes: Note-1: ----- means connection type not applicable to this unit configuration. Note-2: Dimensions shown represent the "pipe connection size" only! For information detailing the sizing of the interconnecting refrigerant and water lines, please refer to the CeilAiR Installations, Operations and Maintenance Manual.
(Single Compressor / Single Circuit Systems) 012
018
024
032
040
048
060
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
OHS-( )-W/G
5/8
7/8
7/8
7/8
7/8
1-1/8
1-1/8
OHS-( )-W/G-FC
5/8
5/8
5/8
7/8
7/8
1-1/8
1-1/8
Model
Chilled Water / Alternate Water Souce Piping Connection Sizes Model OHS-( )-C & AWS
Model OHS-( )-C & AWS
012
018
024
032
040
048
060
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
5/8
7/8
7/8
7/8
7/8
1-1/8
1-1/8
048
072
084
120
IN/OUT
IN/OUT
IN/OUT
IN/OUT
1-1/8
1-1/8
1-1/8
1-3/8
- Piping Connection Sizes
Source Water / Glycol Piping Connection Sizes
Dimensional Data
Refrigerant Piping Connection Sizes - Single Compressor / Circuit Systems OHS-012-( )
Legend: IN OUT
= Inlet Connection, inches OD Copper = Outlet Connection, inches OD Copper
Air Technology Systems, Inc.
6-3
Air Cooled -
SINGLE Compressor Systems DIMENSIONAL DATA
Dimensional Data
(1) OHS-012 thru 032-AS Self-Contained, Air Cooled ("Ductless" Spot Cooler)
- Air Cooled (SINGLE Compressor Systems)
DIMENSIONAL DATA "C"
"D"
"E"
"F"
15.5"
5.75"
18.0"
19.75"
16.13"
21.5"
10.88"
23.0"
15.63"
19.75"
MODEL
"A"
"B"
OHS-012, 018,& 024-AS
20.38"
OHS-032-AS
26.38"
MODEL
"A"
"B"
"C"
"D"
OHS-012, 018,& 024-AS
20.38"
15.5"
5.50"
18.0"
OHS-032-AS
26.38"
21.5"
10.50"
23.0"
(2) OHS-012 thru 032-AS Self-Contained, Air Cooled ("Ducted" Evap - Direct Driven)
Air Technology Systems, Inc
6-4
(3) OHS-040-AS Self-Contained, Air Cooled ("Ductless" Spot Cooler)
Air Technology Systems, Inc.
Air Cooled -
SINGLE Compressor Systems
Dimensional Data
(4) OHS-040-HAS Self-Contained, Air Cooled ("Ducted" Version - Direct Driven)
MODEL
"A"
OHS-012, 018,& 024-AR
20.38"
OHS-032-AR
26.38"
(5) OHS-012 thru 032-AR Remote Air Cooled, Evaporator ("Ductless" Spot Cooler)
(6) OHS-012 thru 032-AR
DIMENSIONAL DATA
Remote Air Cooled, Evaporator ("Ducted" Version - Direct Driven)
Air Technology Systems, Inc.
MODEL
"A"
"B"
"D"
"F"
OHS-012, 018,& 024-AR
20.38"
15.5"
19.75"
16.13"
OHS-032-AR
26.38"
21.5"
15.63"
19.75"
- Air Cooled (SINGLE Compressor Systems)
DIMENSIONAL DATA
6-5
Air Cooled -
SINGLE Compressor Systems
Dimensional Data
(7) OHS-040-AR Remote Air Cooled, Evaporator ("Ductless" Spot Cooler)
DIMENSIONAL DATA
- Air Cooled (SINGLE Compressor Systems)
MODEL
"A"
"B"
"C"
"L"
"M"
OHS-012, 018, & 024-HAR
20.0"
16.0"
see note
see note
see note
OHS-032- & 040-HAR
24.0"
20.0"
see note
see note
see note
OHS-040-HAR @ 0.3" esp (direct drive blower)
24.0"
(8) OHS-012 thru 040-HAR Remote Air Cooled, Evaporator "H-Series Ducted Version" (040 - Direct Driven) & (012/040 - Belt Driven)
Air Technology Systems, Inc
6-6
20.0"
6.62"
11.38"
10.5"
Note: Consult your local Sales Representative for blower outlet dimensional data for "High-Static Pressure Blower Option".
DIMENSIONAL DATA
(9) OHS-040 thru 060-AR
MODEL
Remote Air Cooled, Evaporator (Ducted Only!)
OHS-040 & 060-AR
Air Technology Systems, Inc.
"C"
"L"
"M"
6.62"
11.38"
13.12"
Air Cooled -
DUAL Compressor Systems DIMENSIONAL DATA
Remote Air Cooled, Evaporator (DUAL Compressors)
MODEL
"M"
11.38"
13.12"
OHS-072 & 084-DAR
7.62"
13.44"
15.62"
"C"
"L"
"M"
7.25"
13.44"
15.62"
Remote Air Cooled, Evaporator (DUAL Compressors)
Air Technology Systems, Inc.
- Air Cooled (DUAL Compressor Systems)
MODEL
"L"
6.62"
(11) OHS-120-DAR
DIMENSIONAL DATA OHS-120-DAR
"C"
OHS-048-DAR
Dimensional Data
(10) OHS-048 thru 084-DAR
6-7
DX - Air Handling Units DIMENSIONAL DATA
Dimensional Data
(12) OHS-012 thru 040-AHU
MODEL
DX - Air Handling Unit ("Ductless" Spot Cooler)
20.7"
OHS-032 & 040-AR
26.7"
- DX - Air Handling Units
(13) OHS-012 thru 040-AHU
DIMENSIONAL DATA MODEL
"A"
OHS-012, 018, & 024-AHU
"A"
"B"
"E"
"F"
OHS-012, 018, & 024-AHU
20.7"
15.5"
19.88"
15.75"
OHS-032 & 040-AHU
26.7"
21.5"
15.75"
19.88"
DX - Air Handling Unit ("Ducted Version" - Direct Driven)
Air Technology Systems, Inc
DIMENSIONAL DATA
(14) OHS-012 thru 040-HAHU DX - "H-Series", Air Handling Unit ("Ducted Version" - Belt Driven)
MODEL
"A"
"E"
"F"
"C"
"L"
"M"
OHS-012, 018, & 024-AHU
20.0"
19.75"
15.63"
see note
see note
see note
OHS-032 & 040-AHU
24.0"
19.75"
19.75"
see note
see note
see note
Note: Consult your local Sales Representative for blower outlet dimensional data for "High-Static Pressure Blower Option".
6-8
Air Technology Systems, Inc.
DX - Air Handling Units MODEL
DX - Air Handling Unit (Ducted Only!)
OHS-048 & 060-AHU
MODEL
"C"
"L"
"M"
6.62"
11.38"
13.12"
OHS-072 & 084-AHU
7.62"
13.44"
15.62"
"M"
11.38"
13.12"
(16) OHS-048 thru 084-DAHU
Std CFM @ 0.5" esp
OHS-048-DAHU
"L"
6.62"
DUAL Circuit, DX - Air Handling Unit (Ducted Only!)
- DX - Air Handling Units
DIMENSIONAL DATA
Std CFM @ 0.5" esp "C"
Dimensional Data
DIMENSIONAL DATA
(15) OHS-048 thru 060-AHU
DIMENSIONAL DATA
(17) OHS-120-DAHU
MODEL
DUAL Circuit, DX - Air Handling Unit (Ducted Only!)
OHS-120-DAHU
Air Technology Systems, Inc.
Std CFM @ 0.5" esp "C"
"L"
"M"
7.38"
13.5"
15.69"
6-9
Water / Glycol Cooled -
SINGLE Compressor Systems
Dimensional Data
DIMENSIONAL DATA
(18) OHS-012 thru 032-W / G Self-Contained, Water/Glycol Cooled ("Ductless" Spot Cooler)
- Water / Glycol Cooled (SINGLE Compressor Systems)
DIMENSIONAL DATA MODEL
"A"
"B"
"E"
"F"
OHS-012, 018, & 024-W/G
20.4"
15.5"
19.75"
16.13"
OHS-032-W/G
26.4"
21.5"
15.63"
19.75"
MODEL
"A"
OHS-012, 018, & 024 W/G
20.4"
OHS-032-W/G
26.4"
(19) OHS-012 thru 032-W / G Self-Contained, Water/Glycol Cooled ("Ducted Version" - Direct Drive)
Air Technology Systems, Inc
6-10
(20) OHS-040-W / G Self-Contained, Water/Glycol Cooled ("Ductless" Spot Cooler)
Air Technology Systems, Inc.
Water / Glycol Cooled -
SINGLE Compressor Systems
DIMENSIONAL DATA
& optional
OHS-012 thru 040-HW/HG-FC "H-Series Ducted Version" (040 - Direct Driven) & (012/040 - Belt Driven)
MODEL
"A"
"B"
"C"
"L"
"M"
OHS-012, 018, & 024-HW/HG (& HW/HG-FC)
20.0"
16.0"
see note
see note
see note
OHS-032, & 040-HW/HG (& HW/HG-FC)
24.0"
20.0"
see note
see note
see note
OHS-040-HW/G @ 0.3" esp (Direct-Drive Blower)
24.0"
20.0"
6.62"
11.38"
10.5"
Note: Consult your local Sales Representative for blower outlet dimensional data for "High-Static Pressure Blower Option".
MODEL
& optional
Std CFS @ 0.5" esp "C"
"L"
"M"
OHS-048, & 060-W/G
6.62"
11.38"
13.12"
OHS-048, & 060-W/G-FC
see note
see note
see note
OHS-048 thru 060-W/G-FC Self-Contained, Water/Glycol Cooled (Ducted Only!)
Note: Consult your local Sales Representative for blower outlet dimensional data for "High-Static Pressure Blower Option".
Air Technology Systems, Inc.
- Water / Glycol Cooled (SINGLE Compressor Systems)
(22) OHS-048 thru 060-W / G
DIMENSIONAL DATA
Dimensional Data
(21) OHS-012 thru 040-HW / HG
6-11
Water / Glycol Cooled -
DUAL Compressor Systems
Dimensional Data
(23) OHS-048 thru 084-DW / DG
DIMENSIONAL DATA
& optional OHS-048 thru 084-DW/DG-FC
MODEL
Self-Contained, Water/Glycol Cooled (DUAL Compressors)
Std CFS @ 0.5" esp "C"
"L"
"M"
OHS-048-DW/DG
6.62"
11.38"
13.19"
OHS-072-084-DW/DG
7.62"
13.5"
15.69"
OHS-048/084-DW/DG-FC
see note
see note
see note
Note: Consult your local Sales Representative for blower outlet dimensional data for "High-Static Pressure Blower Option".
- Water / Glycol Cooled (DUAL Compressor Systems)
Air Technology Systems, Inc (24) OHS-120-DW / DG
DIMENSIONAL DATA MODEL OHS-120-DW/DG
6-12
Std CFS @ 0.5" esp "C"
"L"
"M"
7.25"
13.5"
15.69"
Self-Contained, Water/Glycol Cooled (DUAL Compressors)
Air Technology Systems, Inc.
Water / Glycol Cooled -
"10-ton Free-Cooling Version"
MODEL
"FREE-COOLING Version" Self-Contained, Water/Glycol Cooled (DUAL Compressors)
OHS-120-DW/DG-FC
Std CFS @ 0.5" esp "C"
"L"
"M"
7.62"
13.5"
15.69"
Dimensional Data
DIMENSIONAL DATA
(25) OHS-120-DW / DG-FC
- Water/Glycol Cooled (Optional "Free-Cooling")
Air Technology Systems, Inc.
6-13
Chilled Water Systems -
1 thru 3 Ton Systems DIMENSIONAL DATA
Dimensional Data
(26) OHS-012 thru 040-C
MODEL
Chilled Water System ("Ductless" Spot Cooler)
DIMENSIONAL DATA
- Chilled Water Systems (1 to 3 Ton Systems)
MODEL
"A"
"B"
"E"
"F"
OHS-012, 018, & 024-C
20.4"
15.5"
19.75"
15.63"
OHS-032, & 040-C
26.4"
21.5"
15.63"
19.75"
"A"
OHS-012-, 018, & 024-C
20.7"
OHS-032 & 040-C
26.7"
(27) OHS-012 thru 040-C Chilled Water System ("Ducted Version" - Direct Driven)
Air Technology Systems, Inc
6-14
(28) OHS-012 thru 040-HC
DIMENSIONAL DATA MODEL
"H-Series", Chilled Water System ("Ducted Version" - Belt Driven)
OHS-012, 018, & 024-HC OHS-032, & 040-HC
"A"
"E"
"F"
"C"
"L"
"M"
20.0"
19.75"
15.63"
SEE NOTE
SEE NOTE
SEE NOTE
24.0"
19.75"
19.75"
SEE NOTE
SEE NOTE
SEE NOTE
Note: Consult your local Sales Representative for blower outlet dimensional data for "High-Static Pressure Blower Option".
Air Technology Systems, Inc.
Chilled Water Systems -
4 thru 10 Ton Systems MODEL
Chilled Water System ("Ducted" - Belt Driven)
OHS-048 & 060-C
MODEL OHS-072 & 084-C
"C"
"L"
"M"
13.5"
15.69"
"M"
11.38"
13.12"
(30) OHS-072 thru 084-C
Std CFS @ 0.5" esp 7.62"
"L"
6.62"
Chilled Water System ("Ducted" - Belt Driven)
DIMENSIONAL DATA
(31) OHS-120-C
MODEL
Chilled Water System ("Ducted" - Belt Driven)
OHS-120-C
Air Technology Systems, Inc.
Std CFS @ 0.5" esp "C"
"L"
"M"
7.38"
13.5"
15.7"
- Chilled Water Systems (4 to 10 Ton Systems)
DIMENSIONAL DATA
Std CFS @ 0.5" esp "C"
Dimensional Data
DIMENSIONAL DATA
(29) OHS-048 thru 060-C
6-15
www.stulz-ats.com Air Technology Systems, Inc the greener way of cooling your data center.
1572 Tilco Drive, Frederick, Maryland 21704 Phone: 301.620.2033, Fax: 301.662.5487 E-mail:
[email protected] Air Technology Systems, Inc.
Registered
ISO9001
Quality System
ISO-9001:2001 Quality Registered Copyright, September 2008 QE-OHS0023 Rev Specifications subject to change without notice.
This document was printed on recycled paper, with ecosmarttm environmentally responsible ink products. Air Technology Systems, Inc.
Technical Bulletin
Addendum to QE-OHS0023 CeilAiR (OHS) Engineering Manual
Table of Contents
Electrical Data DX Single Circuit Systems...................................................................................................2-3 DX Dual Circuit Systems.....................................................................................................4-5 Single Circuit AHU Systems................................................................................................6 Dual Circuit DAHU Systems................................................................................................7 DX Single Circuit Systems with Free Cooling or Alternate Water Source.......................8 DX Single Circuit Systems with Free Cooling or Alternate Water Source.......................9 Chilled Water Systems........................................................................................................10-11
<< Electrical Data Notes >> 1) Electrical Data is based on standard performance and component selection per QE-OHS0023. Please consult your local Sales Representative for "special" equipment electrical data. 2) High Static Pressure Belt-Drive Option - Electrical Data in the pages to follow are based on Standard CFM's and External Static Pressures. Please Consult your local Sales Representative for component and electrical rating data for this Option.
Addendum to QE-OHS0023- OHS Eng. Manual QECH013-, November, 2013
Page 1 of 11
Technical Bulletin
Electrical Data - DX Single Compressor Systems Model
OHS-012-AS FLA
MCA
MFS
OHS-018-AS FLA
MCA
OHS-024-AS
MFS
FLA
MCA
OHS-032-AS
MFS
FLA
OHS-040-AS
MCA
MFS
FLA
MCA
MFS
OHS-048-AS
OHS-060-AS
FLA
FLA
MCA
MFS
MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
11.7
17.2
25
14.8
20.3
30
17.5
25.6
40
19.9
29
45
21.2
30.3
45
N/A
N/A
277/1/60
9.2
14.7
20
11
15.8
20
12.9
19.8
30
15.8
23.1
35
16.9
24.2
35
N/A
N/A
208/3/60
N/A
N/A
14.3
18
25
15.9
22.6
30
17.2
23.9
35
N/A
N/A
460/3/60
N/A
N/A
6.5
8.8
15
7.3
11.1
15
7.9
11.7
15
N/A
N/A
COOLING and ELECTRIC REHEAT/HEAT, with or without Humidifier 208/1/60
33.1
44
45
36.2
47
50
38.9
52.4
60
41.3
55.7
60
42.6
57
60
N/A
N/A
277/1/60
27.3
37.3
40
29.1
38.5
40
31
42.5
50
33.9
45.7
50
35
46.8
50
N/A
N/A
208/3/60
N/A
N/A
26.7
33.5
35
28.3
38.1
45
29.6
39.4
45
N/A
N/A
460/3/60
N/A
N/A
12.8
16.7
20
13.6
19
20
14.2
19.6
20
N/A
N/A
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
19.9
25.4
30
23
28.5
35
277/1/60
15.3
20.8
25
17.1
21.9
30
25.7
33.8
45
28.1
37.2
50
29.4
38.5
50
N/A
N/A
19
25.9
35
21.9
29.2
40
23
30.3
40
N/A
N/A
208/3/60
N/A
N/A
22.5
26.2
35
24.1
30.8
40
25.4
32.1
40
N/A
N/A
460/3/60
N/A
N/A
10.2
12.6
15
11
14.8
20
11.6
15.4
20
N/A
N/A
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
27
33.8
35
28.3
35.4
40
28.3
35.4
40
29
36.3
40
30.3
37.9
40
N/A
N/A
277/1/60
21.7
27.1
30
22.8
28.5
30
22.8
28.5
30
23.3
29.1
30
24.4
30.5
35
N/A
N/A
208/3/60
N/A
N/A
19.3
24.1
25
20
25.0
30
21.3
26.6
30
N/A
N/A
460/3/60
N/A
N/A
9.4
11.8
15
9.4
11.8
15
10
12.5
15
N/A
N/A
Model
FLA (OEM Rated)
OHS-012-AR, W, & G AR
W
G
MCA
OHS-018-AR, W, & G MFS
FLA (OEM Rated) AR
W
G
OHS-024-AR, W, & G
MCA
MFS
FLA (OEM Rated) AR
W
G
MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
8.8
7.4
9.2
14.3
20
10.6
8.9
11.1
16.1
25
13.3
10.7
14.2
21.5
35
277/1/60
7.4
6.4
7.7
12.9
20
8.1
6.8
8.5
12.9
20
10
8.1
10.6
16.9
25
208/3/60
N/A
N/A
10.1
8.7
10.6
13.8
20
460/3/60
N/A
N/A
4.9
4.3
5.1
7.3
15
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
30.2
28.8
30.6
41.1
45
32
30.3
32.5
42.8
45
34.7
32.1
35.6
48.2
50
277/1/60
25.5
24.5
25.8
35.5
40
26.2
24.9
26.6
35.5
40
28.1
26.2
28.7
39.5
45
208/3/60
N/A
N/A
22.5
21.1
23
29.3
35
460/3/60
N/A
N/A
11.2
10.6
11.4
15.1
20
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
17
15.6
17.4
22.5
30
18.8
17.1
19.3
24.3
30
21.5
18.9
22.4
29.6
40
277/1/60
13.5
12.5
13.8
19
25
14.2
12.9
14.6
19
25
16.1
14.2
16.7
23
35
208/3/60
N/A
N/A
18.3
16.9
18.8
22
30
460/3/60
N/A
N/A
8.6
8
8.8
10.9
15
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
24.1
24.1
24.1
30.1
35
24.1
24.1
24.1
30.1
35
24.1
24.1
24.1
30.1
35
277/1/60
19.9
19.9
19.9
24.9
25
19.9
19.9
19.9
24.9
25
19.9
19.9
19.9
24.9
25
208/3/60
N/A
N/A
15.1
15.1
15.1
18.9
20
460/3/60
N/A
N/A
7.8
7.8
7.8
9.8
15
COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
30.2
28.8
30.6
41.1
45
32
30.3
32.5
42.8
45
34.7
32.1
35.6
48.2
50
277/1/60
25.5
24.5
25.8
35.5
40
26.2
24.9
26.6
35.5
40
28.1
26.2
28.7
39.5
45
208/3/60
N/A
N/A
22.5
21.1
23
29.3
35
460/3/60
N/A
N/A
11.2
10.6
11.4
15.1
20
Addendum to QE-OHS0023- OHS Eng. Manual QECH013-, November, 2013
Page 2 of 11
(*) Current Draws are given in the following order:
FLA
MCA
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
Technical Bulletin
Electrical Data - DX Single Compressor Systems Model
OHS-032-AR, W, & G FLA (OEM Rated) AR
W
G
MCA
OHS-040-AR, W, & G MFS
FLA (OEM Rated) AR
W
G
OHS-048-AR, W, & G
MCA
MFS
FLA (OEM Rated) AR
W
G
MCA
OHS-060-AR, W, & G MFS
FLA (OEM Rated) AR
W
G
MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
15.7
13
16.5
24.8
40
17
14.3
17.8
26.1
40
N/A
277/1/60
12.9
10.6
13.6
20.2
30
14
11.7
14.7
21.3
35
N/A
N/A
208/3/60
11.7
10.3
12.1
18.4
30
13
11.6
13.4
19.7
30
16.9
14.4
17.7
25.3
40
22.6
19.3
23.6
29.2
45
460/3/60
5.7
5
5.9
9.5
15
6.3
5.6
6.5
10.1
15
8.7
7.5
9.1
12.1
15
10.4
9
10.8
14.3
20
N/A
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
37.1
34.4
37.9
51.5
60
38.4
35.7
39.2
52.8
60
N/A
277/1/60
31
28.7
31.7
42.8
50
32.1
29.8
32.8
43.9
50
N/A
N/A
208/3/60
24.1
22.7
24.5
33.9
40
25.4
24
25.8
35.2
40
41.6
39.1
42.4
56.2
60
47.3
44
48.3
60.1
70
460/3/60
12
11.3
12.2
17.4
20
12.6
11.9
12.8
18
20
21.3
20.1
21.7
27.8
30
23
21.6
23.4
30
35
N/A
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
23.9
21.2
24.7
33
50
25.2
22.5
26
34.3
50
N/A
277/1/60
19
16.7
19.7
26.3
40
20.1
17.8
20.8
27.4
40
N/A
N/A
208/3/60
19.9
18.5
20.3
26.6
35
21.2
19.8
21.6
27.9
35
33.2
30.7
34
41.6
50
38.9
35.6
39.9
45.5
60
460/3/60
9.4
8.7
9.6
13.2
15
10
9.3
10.2
13.8
20
16.1
14.9
16.5
19.5
25
17.8
16.4
18.2
21.7
30
N/A
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
24.8
24.8
24.8
31.0
35
26.1
26.1
26.1
32.6
35
N/A
277/1/60
20.4
20.4
20.4
25.5
30
21.5
21.5
21.5
26.9
30
N/A
N/A
208/3/60
15.8
15.8
15.8
19.8
20
17.1
17.1
17.1
21.4
25
28.6
28.6
28.6
35.8
40
29.8
29.8
29.8
37.3
40
460/3/60
7.8
7.8
7.8
9.8
15
8.4
8.4
8.4
10.5
15
14.8
14.8
14.8
18.5
20
15.5
15.5
15.5
19.4
20
N/A
COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
37.1
34.4
37.9
51.5
60
38.4
35.7
39.2
52.8
60
N/A
277/1/60
31
28.7
31.7
42.8
50
32.1
29.8
32.8
43.9
50
N/A
N/A
208/3/60
24.1
22.7
24.5
33.9
40
25.4
24
25.8
35.2
40
41.6
39.1
42.4
56.2
60
47.3
44
48.3
60.1
70
460/3/60
12
11.3
12.2
17.4
20
12.6
11.9
12.8
18
20
21.3
20.1
21.7
27.8
30
23
21.6
23.4
30
35
N/A
(*) Current Draws are given in the following order:
FLA
MCA
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
Addendum to QE-OHS0023- OHS Eng. Manual QECH013-, November, 2013
Page 3 of 11
Technical Bulletin
Electrical Data - DX Dual Compressor Systems OHS-048-DAR, DW, & DG Model
FLA (OEM rated) DAR
DW
DG
MCA
OHS-072-DAR, DW, & DG MFS
FLA (OEM rated) DAR
DW
MCA
DG
OHS-084-DAR, DW, & DG MFS
FLA (OEM rated) DAR
DW
DG
MCA
OHS-120-DAR, DW, & DG MFS
FLA (OEM rated) DAR
DW
DG
MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
18.9
16.1
19.9
24.1
30
21.7
18.9
22.5
32.1
40
30.2
26.2
31.4
45.5
60
44.3
37.7
46.3
52.7
70
460/3/60
8.7
7.5
9.1
12.3
15
11.3
9.9
11.7
17.3
20
15.4
13.4
16
21.2
25
19.8
17
20.6
25.3
30
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
36.2
34.8
36.7
46.1
50
38.1
36.7
38.5
51
60
43.3
41.3
43.9
59.3
70
51.5
48.2
52.5
64.3
70
460/3/60
17.9
17.3
18.1
23.4
25
19.7
19
19.9
26.7
30
22
21
22.3
29
30
24.9
23.5
25.3
31.9
35
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
35.2
32.4
36.2
40.4
45
35.9
33.1
36.7
46.3
50
44.4
40.4
45.6
59.7
70
58.5
51.9
60.5
66.9
80
460/3/60
16.1
14.9
16.5
19.6
20
17.7
16.3
18.1
23.7
30
21.8
19.8
22.4
27.6
35
26.2
23.4
27
31.7
40
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
28.6
28.6
28.6
35.8
40
29.8
29.8
29.8
37.3
40
31.7
31.7
31.7
39.6
40
34
34
34
42.5
45
460/3/60
14.8
14.8
14.8
18.5
20
15.5
15.5
15.5
19.4
20
16
16
16
20
25
17.4
17.4
17.4
21.8
25
COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
36.2
34.8
36.7
46.1
50
38.1
36.7
38.5
51
60
44.4
41.3
45.6
59.7
70
58.5
51.9
60.5
66.9
80
460/3/60
17.9
17.3
18.1
23.4
25
19.7
19
19.9
26.7
30
22
21
22.4
29
35
26.2
23.5
27
31.9
40
(*) Current Draws are given in the following order:
FLA
MCA
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
Addendum to QE-OHS0023- OHS Eng. Manual QECH013-, November, 2013
Page 4 of 11
Technical Bulletin
Electrical Data - Single Circuit AHU Systems Model
OHS-012-AHU FLA
MCA
OHS-018-AHU MFS
FLA
MCA
OHS-024-AHU MFS
OHS-032-AHU
FLA
MCA
MFS
FLA
MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
2.7
3.4
15
2.7
3.4
15
2.7
3.4
15
3.4
4.3
15
277/1/60
1.8
2.3
15
1.8
2.3
15
1.8
2.3
15
2.3
2.9
15
208/3/60
2.7
3.4
15
2.7
3.4
15
2.7
3.4
15
3.4
4.3
15
460/3/60
1.5
1.9
15
1.5
1.9
15
1.5
1.9
15
1.5
1.9
15
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
24.1
30.1
35
24.1
30.1
35
24.1
30.1
35
24.8
31
35
277/1/60
19.9
24.9
25
19.9
24.9
25
19.9
24.9
25
20.4
25.5
30
208/3/60
15.1
18.9
20
15.1
18.9
20
15.1
18.9
20
15.8
19.8
20
460/3/60
7.8
9.8
15
7.8
9.8
15
7.8
9.8
15
7.8
9.8
15
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
10.9
13.6
15
10.9
13.6
15
10.9
13.6
15
11.6
14.5
15
277/1/60
7.9
9.9
15
7.9
9.9
15
7.9
9.9
15
8.4
10.5
15
208/3/60
10.9
13.6
15
10.9
13.6
15
10.9
13.6
15
11.6
14.5
15
460/3/60
5.2
6.5
15
5.2
6.5
15
5.2
6.5
15
5.2
6.5
15
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
24.1
30.1
35
24.1
30.1
35
24.1
30.1
35
24.8
31
35
277/1/60
19.9
24.9
25
19.9
24.9
25
19.9
24.9
25
20.4
25.5
30
208/3/60
15.1
18.9
20
15.1
18.9
20
15.1
18.9
20
15.8
19.8
20
460/3/60
7.8
9.8
15
7.8
9.8
15
7.8
9.8
15
7.8
9.8
15
COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
32.3
40.4
45
32.3
40.4
45
32.3
40.4
45
33
41.3
45
277/1/60
26
32.5
35
26
32.5
35
26
32.5
35
26.5
33.1
35
208/3/60
23.3
29.1
30
23.3
29.1
30
23.3
29.1
30
24
30
35
460/3/60
11.5
14.4
15
11.5
14.4
15
11.5
14.4
15
11.5
14.4
15
MFS
FLA
MFS
FLA
Model
OHS-040-AHU FLA
MCA
OHS-048-AHU MCA
OHS-060-AHU MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
4.7
5.9
15
N/A
277/1/60
3.4
4.3
15
N/A
N/A
208/3/60
4.7
5.9
15
3.9
4.9
15
5.1
6.4
15
460/3/60
2.1
2.6
15
2.2
2.8
15
2.9
3.6
15
N/A
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
26.1
32.6
35
N/A
277/1/60
21.5
26.9
30
N/A
N/A
208/3/60
17.1
21.4
25
28.6
35.8
40
29.8
37.3
40
460/3/60
8.4
10.5
15
14.8
18.5
20
15.5
19.4
20
N/A
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
12.9
16.1
20
N/A
277/1/60
9.5
11.9
15
N/A
N/A
208/3/60
12.9
16.1
20
20.2
25.2
30
21.4
26.8
30
460/3/60
5.8
7.3
15
9.6
12
15
10.3
12.9
15
N/A
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
26.1
32.6
35
N/A
277/1/60
21.5
26.9
30
N/A
N/A
208/3/60
17.1
21.4
25
28.6
35.8
40
29.8
37.3
40
460/3/60
8.4
10.5
15
14.8
18.5
20
15.5
19.4
20
N/A
COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER
FLA
208/1/60
34.3
42.9
45
N/A
N/A
277/1/60
27.6
34.5
35
N/A
N/A
208/3/60
25.3
31.6
35
44.9
56.1
60
46.1
57.6
60
460/3/60
12.1
15.1
20
22.2
27.8
30
22.9
28.6
30
Addendum to QE-OHS0023- OHS Eng. Manual QECH013-, November, 2013
Page 5 of 11
(*) Current Draws are given in the following order:
MCA
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
Technical Bulletin
Electrical Data - Dual Circuit DAHU Systems Model
OHS-048-DAHU FLA
MCA
OHS-072-DAHU
MFS
FLA
MCA
OHS-084-DAHU
MFS
FLA
MCA
OHS-120-DAHU
MFS
FLA
MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
208/3/60
4.1
5.1
15
5.1
6.4
15
7
8.8
15
9.3
11.6
20
460/3/60
1.9
2.4
15
2.9
3.6
15
3.4
4.3
15
4.8
6
15
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
N/A
277/1/60
N/A
N/A
N/A
N/A
N/A
N/A
N/A
208/3/60
28.8
36
40
29.8
37.3
40
31.7
39.6
40
34
42.5
45
460/3/60
14.5
18.1
20
15.5
19.4
20
16
20
25
17.4
21.8
25
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
208/3/60
20.4
25.5
30
19.3
24.1
25
21.2
26.5
30
23.5
29.4
30
460/3/60
9.3
11.6
15
9.3
11.6
15
9.8
12.3
15
11.2
14
15
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
N/A
277/1/60
N/A
N/A
N/A
N/A
N/A
N/A
N/A
208/3/60
28.8
36
40
29.8
37.3
40
31.7
39.6
40
34
42.5
45
460/3/60
14.5
18.1
20
15.5
19.4
20
16
20
25
17.4
21.8
25
COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
208/3/60
45.1
56.4
60
44
55
60
45.9
57.4
60
48.2
60.3
70
460/3/60
21.9
27.4
30
21.9
27.4
30
22.4
28
30
23.8
29.8
30
(*) Current Draws are given in the following order:
FLA
MCA
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
Addendum to QE-OHS0023- OHS Eng. Manual QECH013-, November, 2013
Page 6 of 11
Technical Bulletin
Electrical Data - DX Single Circuit Systems with Free Cooling or Alternate Water Source Model
OHS-012-HAR, HW, & HG AWS or FC FLA (OEM rated) HAR
HW
HG
MCA
OHS-018-HAR, HW, & HG AWS or FC MFS
FLA (OEM rated) HAR
HW
HG
OHS-024-HAR, HW, & HG AWS or FC
MCA
MFS
FLA (OEM rated) HAR
HW
HG
MCA
MFS
COOLING ONLY, with or without Hot Water or Steam Reheat 208/1/60
9.1
7.7
9.5
14.6
20
12
10.3
12.5
17.5
25
15.4
12.8
16.3
23.5
35
277/1/60
8.2
7.2
8.5
13.7
20
9.6
8.3
10
14.4
20
12.5
10.6
13.1
19.4
30
208/3/60
N/A
N/A
8.7
7.6
9.0
12.9
20
460/3/60
N/A
N/A
4.6
4.1
4.8
6.7
15
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
30.5
29.1
30.9
41.4
45
33.4
31.7
33.9
44.2
45
36.8
34.2
37.7
50.3
60
277/1/60
26.3
25.3
26.6
36.3
40
27.7
26.4
28.1
37
40
30.6
28.7
31.2
42
45
208/3/60
N/A
N/A
22.8
21.4
23.3
29.6
35
460/3/60
N/A
N/A
11.2
10.6
11.4
15.1
20
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
17.3
15.9
17.7
22.8
30
20.2
18.5
20.7
25.7
35
23.6
21
24.5
31.8
45
277/1/60
14.3
13.3
14.6
19.8
25
15.7
14.4
16.1
20.5
25
18.6
16.7
19.2
25.5
35
208/3/60
N/A
N/A
18.6
17.2
19.1
22.3
30
460/3/60
N/A
N/A
8.6
8
8.8
10.9
15
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
24.4
24.4
24.4
30.5
35
25.5
25.5
25.5
31.9
35
26.2
26.2
26.2
32.8
35
277/1/60
20.7
20.7
20.7
25.9
30
21.4
21.4
21.4
26.8
30
22.4
22.4
22.4
28
30
208/3/60
N/A
N/A
15.4
15.4
15.4
19.3
20
460/3/60
N/A
N/A
7.8
7.8
7.8
9.8
15
COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
30.5
29.1
30.9
41.4
45
33.4
31.7
33.9
44.2
45
36.8
277/1/60
26.3
25.3
26.6
36.3
40
27.7
26.4
28.1
37
40
30.6
34.2 28.7
37.7 31.2
50.3 42
60 45
208/3/60
N/A
N/A
22.8
21.4
23.3
29.6
35
460/3/60
N/A
N/A
11.2
10.6
11.4
15.1
20
(*) Current Draws are given in the following order:
FLA
MCA
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
Addendum to QE-OHS0023- OHS Eng. Manual QECH013-, November, 2013
Page 7 of 11
Technical Bulletin
Electrical Data - DX Single Circuit Systems with Free Cooling or Alternate Water Source Model
OHS-032-HAR, HW, & HG AWS or FC FLA (OEM rated) HAR
HW
HG
MCA
OHS-040-HAR, HW, & HG AWS or FC MFS
FLA (OEM rated) HAR
HW
HG
OHS-048-AR, W, & G AWS or FC
MCA
MFS
FLA (OEM rated) AR
W
G
MCA
OHS-060 AR, W, & G AWS or FC MFS
FLA (OEM rated) AR
W
G
MCA
MFS
COOLING ONLY, with or without Hot Water or Steam Reheat 208/1/60
20.2
17.5
21
29.3
45
20.2
17.5
21
29.3
45
N/A
277/1/60
16.9
14.6
17.6
24.2
35
16.9
14.6
17.6
24.2
35
N/A
N/A
208/3/60
12.2
10.8
12.6
18.9
30
12.2
10.8
12.6
18.9
30
18.1
15.6
18.9
26.5
40
24.5
21.2
25.5
31.1
50
460/3/60
6.4
5.7
6.6
10.2
15
6.4
5.7
6.6
10.2
15
9.4
8.2
9.8
12.8
20
10.9
9.5
11.3
14.8
20
N/A
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
41.6
38.9
42.4
56
60
41.6
38.9
42.4
56
60
N/A
277/1/60
35
32.7
35.7
46.8
50
35
32.7
35.7
46.8
50
N/A
N/A
208/3/60
24.6
23.2
25
34.4
40
24.6
23.2
25
34.4
40
42.8
40.3
43.6
57.4
60
49.2
45.9
50.2
62
70
460/3/60
12.7
12
12.9
18.1
20
12.7
12
12.9
18.1
20
22
20.8
22.4
28.5
30
23.5
22.1
23.9
30.5
35
N/A
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
28.4
25.7
29.2
37.5
50
28.4
25.7
29.2
37.5
50
N/A
277/1/60
23
20.7
23.7
30.3
40
23
20.7
23.7
30.3
40
N/A
N/A
208/3/60
20.4
19
20.8
27.1
35
20.4
19
20.8
27.1
35
34.4
31.9
35.2
42.8
50
40.8
37.5
41.8
47.4
60
460/3/60
10.1
9.4
10.3
13.9
20
10.1
9.4
10.3
13.9
20
16.8
15.6
17.2
20.2
25
18.3
16.9
18.7
22.2
30
N/A
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
29.3
29.3
29.3
36.6
40
29.3
29.3
29.3
36.6
40
N/A
277/1/60
24.4
24.4
24.4
30.5
35
24.4
24.4
24.4
30.5
35
N/A
N/A
208/3/60
16.3
16.3
16.3
20.4
25
16.3
16.3
16.3
20.4
25
29.8
29.8
29.8
37.3
40
31.7
31.7
31.7
39.6
40
460/3/60
8.5
8.5
8.5
10.6
15
8.5
8.5
8.5
10.6
15
15.5
15.5
15.5
19.4
20
16
16
16
20
25
N/A
COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
41.6
38.9
42.4
56
60
41.6
38.9
42.4
56
60
N/A
277/1/60
35
32.7
35.7
46.8
50
35
32.7
35.7
46.8
50
N/A
208/3/60
24.6
23.2
25
34.4
40
24.6
23.2
25
34.4
40
42.8
40.3
43.6
57.4
60
49.2
45.9
50.2
62
70
460/3/60
12.7
12
12.9
18.1
20
12.7
12
12.9
18.1
20
22
20.8
22.4
28.5
30
23.5
22.1
23.9
30.5
35
Addendum to QE-OHS0023- OHS Eng. Manual QECH013-, November, 2013
Page 8 of 11
N/A N/A
Technical Bulletin
Electrical Data - DX Dual Circuit Systems with Free Cooling or Alternate Water Source Model
OHS-048-DAR, DW, & DG AWS or FC FLA (OEM rated) DAR
DW
DG
MCA
OHS-072-DAR, DW, & DG AWS or FC MFS
FLA (OEM rated) DAR
DW
DG
MCA
OHS-084-DAR, DW, & DG AWS or FC MFS
FLA (OEM rated) DAR
DW
DG
MCA
OHS-120-DAR, DW, & DG AWS or FC MFS
FLA (OEM rated) DAR
DW
DG
MCA
MFS
COOLING ONLY, with or without Hot Water or Steam Reheat 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
18.7
15.9
19.7
23.9
30
23.6
20.8
24.4
34
45
32.5
28.5
33.7
47.8
60
49.1
42.5
51.1
57.5
70
460/3/60
9
7.8
9.4
12.6
15
11.8
10.4
12.2
17.8
20
16.8
14.8
17.4
22.6
30
21.7
18.9
22.5
27.2
35
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
36
34.6
36.5
45.9
50
40
38.6
40.4
52.9
60
45.6
43.6
46.2
61.6
70
56.3
53
57.3
69.1
80
460/3/60
18.2
17.6
18.4
23.7
25
20.2
19.5
20.4
27.2
30
23.4
22.4
23.7
30.4
35
26.8
25.4
27.2
33.8
35
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
35
32.2
36
40.2
45
37.8
35
38.6
48.2
60
46.7
42.7
47.9
62
70
63.3
56.7
65.3
71.7
90
460/3/60
16.4
15.2
16.8
20
25
18.2
16.8
18.6
24.2
30
23.2
21.2
23.8
29
35
28.1
25.3
28.9
33.6
40
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
28.6
28.6
28.6
35.8
40
31.7
31.7
31.7
39.6
40
34
34
34
42.5
45
38.8
38.8
38.8
48.5
50
460/3/60
14.8
14.8
14.8
18.5
20
16
16
16
20
25
17.4
17.4
17.4
21.8
25
19.3
19.3
19.3
24.1
25
COOLING and ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A N/A
208/3/60
36
34.6
36.5
45.9
50
40
38.6
40.4
52.9
60
46.7
43.6
47.9
62
70
63.3
56.7
65.3
71.7
90
460/3/60
18.2
17.6
18.4
23.7
25
20.2
19.5
20.4
27.2
30
23.4
22.4
23.8
30.4
35
28.1
25.4
28.9
33.8
40
(*) Current Draws are given in the following order:
FLA
MCA
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
Addendum to QE-OHS0023- OHS Eng. Manual QECH013-, November, 2013
Page 9 of 11
Technical Bulletin
Electrical Data - Chilled Water Systems Model
OHS-012-C FLA
MCA
OHS-018-C MFS
FLA
MCA
OHS-024-C MFS
FLA
MCA
OHS-032-C
OHS-040-C
MFS
FLA
MCA
MFS
FLA
MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
2.7
3.4
15
2.7
3.4
15
2.7
3.4
15
3.4
4.3
15
4.7
5.9
15
277/1/60
1.8
2.3
15
1.8
2.3
15
1.8
2.3
15
2.3
2.9
15
3.4
4.3
15
208/3/60
2.7
3.4
15
2.7
3.4
15
2.7
3.4
15
3.4
4.3
15
4.7
5.9
15
460/3/60
1.5
1.9
15
1.5
1.9
15
1.5
1.9
15
1.5
1.9
15
2.1
2.6
15
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
24.1
30.1
35
24.1
30.1
35
24.1
30.1
35
24.8
31
35
26.1
32.6
35
277/1/60
19.9
24.9
25
19.9
24.9
25
19.9
24.9
25
20.4
25.5
30
21.5
26.9
30
208/3/60
15.1
18.9
20
15.1
18.9
20
15.1
18.9
20
15.8
19.8
20
17.1
21.4
25
460/3/60
7.8
9.8
15
7.8
9.8
15
7.8
9.8
15
7.8
9.8
15
8.4
10.5
15
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
10.9
13.6
15
10.9
13.6
15
10.9
13.6
15
11.6
14.5
15
12.9
16.1
20
277/1/60
7.9
9.9
15
7.9
9.9
15
7.9
9.9
15
8.4
10.5
15
9.5
11.9
15
208/3/60
10.9
13.6
15
10.9
13.6
15
10.9
13.6
15
11.6
14.5
15
12.9
16.1
20
460/3/60
5.2
6.5
15
5.2
6.5
15
5.2
6.5
15
5.2
6.5
15
5.8
7.3
15
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
24.1
30.1
35
24.1
30.1
35
24.1
30.1
35
24.8
31
35
26.1
32.6
35
277/1/60
19.9
24.9
25
19.9
24.9
25
19.9
24.9
25
20.4
25.5
30
21.5
26.9
30
208/3/60
15.1
18.9
20
15.1
18.9
20
15.1
18.9
20
15.8
19.8
20
17.1
21.4
25
460/3/60
7.8
9.8
15
7.8
9.8
15
7.8
9.8
15
7.8
9.8
15
8.4
10.5
15
COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
32.3
40.4
45
32.3
40.4
45
32.3
40.4
45
33
41.3
45
34.3
42.9
45
277/1/60
26.0
32.5
35
26.0
32.5
35
26.0
32.5
35
26.5
33.1
35
27.6
34.5
35
208/3/60
23.3
29.1
30
23.3
29.1
30
23.3
29.1
30
24
30
35
25.3
31.6
35
460/3/60
11.5
14.4
15
11.5
14.4
15
11.5
14.4
15
11.5
14.4
15
12.1
15.1
20
(*) Current Draws are given in the following order:
FLA
MCA
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
Addendum to QE-OHS0023- OHS Eng. Manual QECH013-, November, 2013
Page 10 of 11
Technical Bulletin
Electrical Data - Chilled Water Systems Model
OHS-048-C FLA
MCA
OHS-060-C MFS
FLA
MCA
OHS-072-C MFS
FLA
MCA
OHS-084-C MFS
FLA
MCA
OHS-120-C MFS
FLA
MCA
MFS
COOLING ONLY, with or without Hot Gas, Hot Water or Steam Reheat 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
N/A N/A
208/3/60
3.9
4.9
15
5.1
6.4
15
5.1
6.4
15
7
8.8
15
9.3
11.6
20
460/3/60
2.2
2.8
15
2.9
3.6
15
2.9
3.6
15
3.4
4.3
15
4.8
6
15
COOLING and ELECTRIC REHEAT/HEAT only, (No Humidifier) 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
N/A N/A
208/3/60
28.6
35.8
40
29.8
37.3
40
29.8
37.3
40
31.7
39.6
40
34
42.5
45
460/3/60
14.8
18.5
20
15.5
19.4
20
15.5
19.4
20
16
20
25
17.4
21.8
25
COOLING and HUMIDIFIER only, with or without Hot Gas, Hot Water or Steam Reheat (No Electric Reheat/Heat) 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
N/A N/A
208/3/60
20.2
25.2
30
21.4
26.8
30
19.3
24.1
25
21.2
26.5
30
23.5
29.4
30
460/3/60
9.6
12
15
10.3
12.9
15
9.3
11.6
15
9.8
12.3
15
11.2
14
15
COOLING and ELECTRIC HEAT only, (No Electric Reheat or Humidifier) 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
N/A N/A
208/3/60
28.6
35.8
40
29.8
37.3
40
29.8
37.3
40
31.7
39.6
40
34
42.5
45
460/3/60
14.8
18.5
20
15.5
19.4
20
15.5
19.4
20
16
20
25
17.4
21.8
25
COOLING with ELECTRIC REHEAT/HEAT and HUMIDIFIER 208/1/60
N/A
N/A
N/A
N/A
277/1/60
N/A
N/A
N/A
N/A
N/A N/A
208/3/60
44.9
56.1
60
46.1
57.6
60
44
55
60
45.9
57.4
60
48.2
60.3
70
460/3/60
22.2
27.8
30
22.9
28.6
30
21.9
27.4
30
22.4
28
30
23.8
29.8
30
(*) Current Draws are given in the following order:
FLA
MCA
MFS
FLA = Full Load Amps MCA = Minimum Circuit Amps (wire size amps) MFS = Maximum Fuse Size
Addendum to QE-OHS0023- OHS Eng. Manual QECH013-, November, 2013
Page 11 of 11
