50vl-07pd

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50VL---A Performancet t 14 SEER Single ---Packaged Air Conditioner System with PuronR (R ---410A) Refrigerant Single and Three Phase 2 to 5 Nominal Tons (Sizes 24---60) Product Data A09033 Fig. 1 -- Unit 50VL--A Single--Packaged Products with Energy--Saving Features and PuronR refrigerant. S 14.2--14.5 SEER / 12.0 EER S Factory--Installed TXV S ECM Motor--Standard S Low Sound Levels FEATURES/BENEFITS One--piece cooling unit with optional electric heater, low sound levels, easy installation, low maintenance, and dependable performance. Puron Environmentally Sound Refrigerant is Carrier’s unique refrigerant designed to help protect the environment. Puron is an HFC refrigerant which does not contain chlorine that can harm the ozone layer. The most important advantage of Puron refrigerant is that it has not been banned in future air conditioning systems as the traditional refrigerant R--22 has been. Puron refrigerant is in service in over 100,000 systems proving highly reliable, environmentally sound performance. Easy Installation Factory--assembled package is a compact, fully self--contained, electric cooling unit that is prewired, pre--piped, and pre--charged for minimum installation expense. These units are available in a variety of standard cooling sizes with voltage options to meet residential and light commercial requirements. Units are lightweight and install easily on a rooftop or at ground level. The high tech composite base eliminates rust problems associated with ground level applications. Innovative Unit Base Design On the inside a high--tech composite material will not rust and incorporates a sloped drain pan which improves drainage and helps inhibit mold, algae and bacterial growth. On the outside metal base rails provide added stability as well as easier handling and rigging. Convertible duct configuration Unit is designed for use in either downflow or horizontal applications. Each unit is converted from horizontal to downflow and includes horizontal duct covers. Downflow operation is provided in the field to allow vertical ductwork connections. The basepan seals on the bottom openings to ensure a positive seal in the vertical airflow mode. Efficient operation High--efficiency design offers SEER (Seasonal Energy Efficiency Ratios) of 14.2 to 14.5. (See page 4.) Durable, dependable components Scroll Compressors are designed for high efficiency. Each compressor is hermetically sealed against contamination to help promote longer life and dependable operation. Each compressor also has vibration isolation to provide quieter operation. All compressors have internal high pressure and overcurrent protection. ECM Motor is standard on all 50VL--A models. Direct--drive PSC (Permanent Split Capacitor) condenser--fan motors are designed to help reduce energy consumption and provide for cooing operation down to 40_F (4.4_C) outdoor temperature. Motormasterr II low ambient kit is available as a field--installed accessory. Thermostatic Expansion Valve -- A hard shutoff, balance port TXV maintains a constant superheat at the evaporator exit (cooling cycle) resulting in higher overall system efficiency. Refrigerant system is designed to provide dependability. Liquid filter driers are used to promote clean, unrestricted operation. Each unit leaves the factory with a full refrigerant charge. Refrigerant service connections make checking operating pressures easier. High and Low Pressure Switches provide added reliability for the compressor. Indoor and Outdoor coils are computer--designed for optimum heat transfer and efficiency. The indoor coil is fabricated from copper tube and aluminum fins and is located inside the unit for protection against damage. The outdoor coil is internally mounted on the top tier of the unit. Low sound ratings ensure a quiet indoor and outdoor environment with sound ratings as low as 73dBA. (See Page 4.) Easy to service cabinets provide easy 3 panel accessibility to serviceable components during maintenance and installation. The basepan with integrated drain pan provides easy ground level installation with a mounting pad. A nesting feature ensures a positive basepan to roof curb seal when the unit is roof mounted. A convenient 3/4--in. (19.05 mm) wide perimeter flange makes frame mounting on a rooftop easy. 1 Standard horizontal metal duct covers with insulation come with the unit and cover the horizontal duct openings. These can be left in place if the units are converted to downflow. Cabinets are constructed of heavyduty, phosphated, zinc--coated prepainted steel capable of withstanding 500 hours in salt spray. Interior surfaces of the evaporator/heat exchanger compartment are insulated with cleanable semi--rigid insulation board, which keeps the conditioned air from being affected by the outdoor ambient temperature and provides improved indoor air quality. (Conforms to American Society of Heating, Refrigeration and Air Conditioning Engineers No. 62P.) The sloped drain pan minimizes standing water in the drain. An external drain is provided. TABLE OF CONTENTS FEATURES/BENEFITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--2 MODEL NUMBER NOMENCLATURE . . . . . . . . . . . . . . . . . 3 AHRI CAPACITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 OPTIONS AND ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . 6 BASE UNIT DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . 8--9 ROOF CURB ACCESSORY . . . . . . . . . . . . . . . . . . . . . . . . . . 10 SELECTION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . 11 PERFORMANCE DATA . . . . . . . . . . . . . . . . . . . . . . . . . . 12--20 TYPICAL PIPING AND WIRING . . . . . . . . . . . . . . . . . . . . . 21 50VL-- A APPLICATION DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23--24 TYPICAL WIRING SCHEMATICS . . . . . . . . . . . . . . . . . 25--30 CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . 32--33 2 MODEL NUMBER NOMENCLATURE --- A 24 --- --- --- 3 0 Type of Unit 50VL --- Single Packaged Air Conditioner System --- --- Options FE --- Economizer (3 Phase Only) TP --- Base unit with tin plated indoor coil hairpins (Single Phase Only) N/A See Price Page for full list of factory options. Only used if ordering an option Major Series Nominal Cooling Capacity 24 --- 2.0 Tons 30 --- 2.5 Tons 36 --- 3.0 Tons 42 --- 3.5 Tons 48 --- 4.0 Tons 60 --- 5.0 Tons Minor Series Electrical Supply 3 --- 208/230--- 1--- 60 5 --- 208/230--- 3--- 60 6 --- 460--- 3--- 60 N/A Use of the AHRI Certified TM Mark indicates a manufacturer’s participation in the program For verification of certification for individual products, go to www.ahridirectory.org. 3 50VL-- A 50VL AHRI* CAPACITIES 50VL-- A Cooling Capacities and Efficiencies 50VL-A NOMINAL TONS STANDARD CFM 24 30 36 42 48 60 2 2.5 3 3.5 4 5 800 1000 1200 1400 1600 1750 LEGEND dB--- Sound Levels (decibels) db—Dry Bulb SEER—Seasonal Energy Efficiency Ratio wb—Wet Bulb COP---Coefficient of Performance * Air Conditioning, Heating & Refrigeration Institute. **At “A” conditions---80_F (26.7_C) indoor db/67_F (19.4_C) indoor wb & 95_F (35_C) outdoor db. { Rated in accordance with U.S. Government DOE Department of Energy) test procedures and/or AHRI Standards 210/240. COOLING CAPACITY 23600 28600 34200 41000 47000 57000 EER SEER 12.0 12.0 12.0 12.0 12.0 12.0 14.5 14.5 14.5 14.5 14.2 14.2 Notes: 1. Ratings are net values, reflecting the effects of circulating fan heat. Ratings are based on: Cooling Standard: 80qF (26.7_C) db, 67qF wb (19.4_C) indoor entering---air temperature and 95qF db (35_C) outdoor entering---air temperature. 2. Before purchasing this appliance, read important energy cost and efficiency information available from your retailer. A--WEIGHTED SOUND POWER LEVEL (dBA) MODEL 50VL-A SOUND RATING 24 30 36 42 48 60 76 73 76 77 77 77 125 58.0 62.0 64.5 70.5 71.5 73.5 TYPICAL OCTAVE BAND SPECTRUM (without tone adjustment) 250 500 1000 2000 4000 65.5 71.5 71.0 65.5 60.5 64.0 67.5 67.5 65.0 60.0 66.5 70.0 70.0 67.5 61.0 68.0 70.5 70.5 68.0 62.5 65.0 71.0 67.5 67.5 63.0 65.5 68.5 67.5 66.5 62.0 NOTE: Tested in accordance with AHRI Standard 270 (not listed in AHRI). 4 8000 53.0 54.5 54.0 58.0 57.5 58.0 PHYSICAL DATA Physical Data--Unit 50VL--A UNIT SIZE NOMINAL CAPACITY (ton) SHIPPING WEIGHT* lb. SHIPPING WEIGHT* (kg) 24 2 295 134 INDOOR BLOWER Nominal Cooling Airflow (Cfm) Size in. Size (mm.) Motor HP (RPM) HIGH --- PRESSURE SWITCH (psig) Cut--- out Reset (Auto) LOSS--- OF--- CHARGE / LOW --- PRESSURE SWITCH (Liquid Line) (psig) cut--- out Reset (auto) RETURN--- AIR FILTERS†} Throwaway Size in. Throwaway Size (mm) 36 3 365 166 42 3 ---1/2 421 191 48 4 439 199 60 5 467 212 8.8 4.0 9.5 4.3 12.3 5.6 Scroll 1 6.0 2.7 5.6 2.5 9.5 4.3 TXV 1...21 11.9 1...21 13.6 2...21 15.4 2...21 13.6 2...21 17.5 2...21 21.4 2500 24 609.6 1/10 (810) 2700 24 609.6 1/10 (810) 2800 24 609.6 1/5 (810) 3000 26 660.4 1/5 (810) 3200 26 660.4 1/5 (810) 3600 26 660.4 1/5 (810) 3...17 3.7 3...17 3.7 3...17 3.7 3...17 4.7 3...17 4.7 3...17 5.7 800 10x10 254x254 1/2 (1050) 1000 10x10 254x254 1/2 (1050) 1600 11x10 279.4x254 1.0 (1075) 1750 11x10 279.4x254 1.0 (1040) 1200 1400 11x10 11x10 279.4x254 279.4x254 3/4 (1000) 3/4 (1075) 650 +/ --- 15 420 +/ --- 25 50VL-- A COMPRESSORS Quantity REFRIGERANT (R --- 410A) Quantity lb Quantity (kg) REFRIGERANT METERING DEVICE OUTDOOR COIL Rows...Fins/in. Face Area (sq ft) OUTDOOR FAN Nominal Cfm Diameter in. Diameter (mm) Motor Hp (Rpm) INDOOR COIL Rows...Fins/in. Face Area (sq ft) 30 2 ---1/2 307 139 20 +/ --- 5 45 +/ --- 10 20x20x1 508x508x25 20x24x1 508x610x25 24x30x1 610x762x25 24x36x1 610x914x25 *For 460 volt units add 14 lb (6.35 kg) to the shipping weight. { Required filter sizes shown are based on the larger of the AHRI (Air Conditioning, Heating and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 ft/minute for throwaway type or 450 ft/minute for high ---capacity type. Air filter pressure drop for non ---standard filters must not exceed 0.08 in. W.C. } If using accessory filter rack refer to the filter rack installation instructions for correct filter sizes and quantity. Electric Heat Pressure Drop Tables (IN. W.C.) Small Cabinet: 24--36 STATIC 5 kW 10 kW 15 kW 20 kW CFM 500 0.00 0.00 0.00 0.00 600 0.00 0.00 0.00 0.00 700 0.00 0.00 0.00 0.02 800 0.00 0.00 0.02 0.04 900 0.00 0.00 0.04 0.06 1000 0.00 0.02 0.06 0.08 1100 0.00 0.04 0.08 0.09 1200 0.00 0.06 0.10 0.11 1300 0.02 0.07 0.12 0.13 1400 0.04 0.09 0.14 0.15 1500 0.06 0.10 0.16 0.17 1600 0.07 0.11 0.18 0.19 Large Cabinet: 42--60 STATIC 5 kW 10 kW 15 kW 20 kW 1100 0.00 0.00 0.00 0.02 1200 0.00 0.00 0.02 0.03 1300 0.00 0.01 0.03 0.04 1400 0.01 0.02 0.04 0.05 1500 0.02 0.03 0.05 0.06 1600 0.03 0.04 0.06 0.07 CFM 1800 0.05 0.06 0.08 0.09 1700 0.04 0.05 0.07 0.08 5 1900 0.06 0.07 0.09 0.10 2000 0.07 0.08 0.10 0.11 2100 0.08 0.09 0.11 0.12 2200 0.09 0.10 0.12 0.13 2300 0.10 0.11 0.13 0.14 2400 0.11 0.12 0.14 0.15 2500 0.12 0.13 0.15 0.16 OPTIONS AND ACCESSORIES ITEM DESCRIPTION Coil Options Compressor Start Kit Corporate Thermostats Crankcase Heater Economizer Electric Heaters 50VL-- A Filter Rack Flat Roof Curbs Low Ambient Kit Manual Outside Air Damper Square--- to--- Round Duct Transition Kit Time Guard II Dual Point Electric Heaters Base unit with tin plated indoor coil hairpins Compressor Start Kit assists compressor start--- up by providing additional starting torque on sing phase units only. Thermostats provide control for the system heating and cooling functions. Crankcase Heater provides anti--- floodback protection for low--- load cooling applications. Horizontal Economizer with solid state controls and barometric relief dampers includes filter racks and provide outdoor air during cooling and reduce compressor operation. Vertical Economizer with solid state controls and barometric relief dampers includes filter racks and provide outdoor air during cooling and reduce compressor operation. Electric Heat Supplement Filter Rack features easy installation, serviceability, and high--- filtering performance for vertical applications. Includes 1--- in. filter. Flat Roof Curbs in both 11--- in (279 mm) and 14--- in. (356 mm) sizes are available for roof mounted applications. Low Ambient Kit (Motormaster II Control) allows the use of mechanical cooling down to outdoor temperatures as low as 0°F (--- 18° C) when properly installed. Manual Outside Air Damper includes hood and filter rack with adjustable damper blade for up to 25% outdoor air. Square--- to--- Round Duct Transition Kit enable 24--- 48 size units to be fitted to 14 in (356 mm). round ductwork. Automatically prevents the compressor from restarting for at least 4 minutes and 45 seconds after shutdown of the compressor. Not required when a corporate programmable thermostat is applied or with a RTU--MP control. Allows you to power the electric heater and unit contactor separately by having two individual field power supply circuits connected respectively. FACTORY INSTALLED OPTION X FIELD INSTALLED ACCESSORY X X X* X X X X X X X X X X *Refer to Price Page for application detail. Electric Heaters CATALOG ORDERING NO. NOMINAL CAPACITY (kW) USED WITH SIZES FUSE QTY 24 30 36 42 48 60 ELECTRIC HEATERS (208/230 — SINGLE PHASE — 60 Hz) CPHEATER052A00 5.0 --- X X X X X X CPHEATER064A00 5.0 4 X X X X X X CPHEATER069A00 7.2 --- X X X X X X CPHEATER070A00 7.2 4 X X X X X X CPHEATER065A00 10.0 --- X X X X CPHEATER050A00 10.0 4 X X X X X X CPHEATER051A00 15.0 4 X X X CPHEATER066A00 15.0 6 X X X X X CPHEATER053A00 20.0 6 X X X CPHEATER054A00 20.0 6 X X X ELECTRIC HEATERS (208/230 — THREE PHASE — 60 Hz) CPHEATER055A00 5.0 --- X X X X X CPHEATER056A00 10.0 --- X X X X X CPHEATER068A00 10.0 6 X X X X X CPHEATER057A00 15.0 --- X X X X X CPHEATER058A00 20.0 6 X X X X X CPHEATER059A01 20.0 6 X X X X ELECTRIC HEATERS (460 — THREE PHASE — 60 Hz) CPHEATER060A00 5.0 --- X X X CPHEATER061A00 10.0 --- X X X X CPHEATER062A00 15.0 --- X X X X CPHEATER063A00 20.0 --- X X X NOTE: Electric heaters are rated at 240v. Refer to Multiplication Factors table for other voltages. X = Approved combinations. Minimum Airflow for Safe Electric Heater Operation (CFM) SIZE Cfm 24 800 30 1000 36 1200 42 1400 6 48 1600 60 1750 ECONOMIZER COIL FILTER 50VL-- A ECONOMIZER Vertical Economizer CAULK BOTTOM CORNER OF ECONOMIZER ON EACH SIDE SIDE VIEW FI LTER COIL ECONOMIZER BASE FLANGE ON BASE DETAIL FILTER RACK BEND FLANGE AT 90° -SCREW TO DIVIDER WITH 1-IN. (25 mm) SCREW TOP FILTER RACK Horizontal Economizer EV APORATOR COIL MANUAL OUTSIDE AIR DAMPER REPLACEMENT PANEL MANUAL OUTSIDE AIR HOOD DAMPER BLADE BOTTOM FILTER RACK A09376 7 50VL-- A UNIT DIMENSIONS -- 50VL--A24--36 A09462 8 50VL-- A UNIT DIMENSIONS -- 50VL--A42--60 A09463 9 ROOF CURB ACCESSORY -- 50VL--A24--60 Dashed lines show cross support location for large basepan units. B G HVAC unit basepan HVAC unit base rails C Sealing Gasket Roofcurb A Anchor screw H F Wood nailer* Flashing field supplied Roofcurb* Insulation (field supplied) Roofing material field supplied 50VL-- A E D Cant strip field supplied SMALL/COMMON CURB A09413 *Provided with roofcurb A09090 ROOF CURB DETAIL B C G SUPPLY AIR SMALL BASE UNIT RETURN AIR LARGE BASE UNIT H F A E D UNIT PLACEMENT ON COMMON CURB SMALL OR LARGE BASE UNIT A09415 LARGE CURB A09094 A09414 UNIT SIZE CATALOG NUMBER Small or Large CPRFCURB010A00 CPRFCURB011A00 CPRFCURB012A00 Large CPRFCURB013A00 A IN. (mm) 11 (279) 14 (356) 11 (279) 14 (356) B (small/common base) IN. (mm)* B (large base) IN. (mm)* C IN. (mm) D IN. (mm) E IN. (mm) F IN. (mm) 32.4 (822) 10 (254) 16 (406) 14 (356) 47.8 (1214) H IN. (mm) 30.6 (778) 2.7 (69) 43.9 (1116) 14 (356) G IN. (mm) 46.1 (1170) 42.2 (1072) * Part Numbers CPRCURB010A00 and CPRCURB011A00 can be used on both small and large basepan units. The cross supports must be located based on whether the unit is a small basepan or a large basepan. NOTES: 1. Roof curb must be set up for unit being installed. 2. Seal strip must be applied, as required, to unit being installed. 3. Roof curb is made of 16--gauge steel. 4. Attach ductwork to curb (flanges of duct rest on curb). 5. Insulated panels: 1--in. (25.4 mm) thick fiberglass 1 lb. density. 10 SELECTION PROCEDURE (WITH EXAMPLE) Given: Required Cooling Capacity (TC) . . . . . . . . . . 34,000 Btuh Sensible Heat Capacity (SHC) . . . . . . . . . . . . 24,000 Btuh Required Heating Capacity . . . . . . . . . . . . . . . 12,500 Btuh Condenser Entering Air Temperature . . . . . . . . 95qF(35qC) Indoor--Air Temperature . . . . . . . . . . . . . 80qF (26qC) edb 67qF (19qC) ewb Evaporator Air Quantity . . . . . . . . . . . . . . . . . . 1200 CFM External Static Pressure . . . . . . . . . . . . . . . . . 0.20 IN. W.C. Electrical Characteristics . . . . . . . . . . . . . . . . . . . 230--1--60 2. Select unit based on required cooling capacity. Enter Net Cooling Capacities table at condenser entering temperature of 95qF (35qC), indoor air entering at 1200 cfm and 67qF (19qC) ewb (entering wet bulb). The unit will provide a total capacity of 34,200 Btuh and a SHC of 24,500 Btuh. 3. Select electric heat. The required heating capacity is 15,000 Btuh. Determine additional electric heat capacity in kW. 15,000 Btuh = 4.4kW of heat required 3,414 Btuh/kW Enter the electric Heater Packages table for 208/240, single--phase, 50VL--A36 unit. The 5 kW heater at 240v most closely satisfies the heating required. To calculate kW at the 208v, multiply the heater kW by multiplication factor 0.75 found in the Wattage Multiplication Factors table. 5 kW x 0.75 = 3.75 kW 3.75 kW x 3414 = 12802.50 Btuh 4. Determine fan speed and power requirements at design conditions. Before entering the air delivery tables, calculate the total static pressure required. From the given example, the Wet Coil Pressure Drop Table, and the Filter Pressure Drop Table: External Static Pressure 0.200 IN. W.C. Filter 0.000 IN. W.C. Wet Coil Pressure Drop 0.130 IN. W.C. Total Static Pressure 0.330 IN. W.C. Enter the table for Wet Coil Air Delivery—horizontal discharge, 230. At 0.33 IN. W.C. ESP (external static pressure) and medium speed, the fan will deliver 1293 cfm. Adjusting for 208v, the motor delivers 114 cfm (deduct 10%). 5. Select unit that corresponds to power source available. The Electrical Data Table shows that the unit is designed to operate at 208--1--60. 11 50VL-- A 1. Determine cooling and heating requirements at design conditions: 12 Total Sens Capacity MBtuh 75 (23.9) 57 22.98 22.98 (13.8) 62 23.82 21.37 (16.6) 63* 24.35 17.47 700/0.02 (17.2) 67 26.42 18.21 (19.4) 72 28.85 14.79 (22.2) 57 24.12 24.12 (13.8) 62 24.50 23.07 (16.6) 63* 25.00 18.69 800/0.03 (17.2) 67 27.05 19.46 (19.4) 72 29.34 15.47 (22.2) 57 25.11 25.11 (13.8) 62 25.16 25.16 (16.6) 63* 25.49 19.84 900/0.04 (17.2) 67 27.52 20.63 (19.4) 72 29.68 16.09 (22.2) See Legend and Notes on Page 18. EVAPORATOR AIR EWB CFM/BF _F (_C) 50VL--A24 PERFORMANCE DATA 21.68 22.23 22.73 24.76 27.32 22.76 22.90 23.32 25.38 27.83 23.69 23.73 23.79 25.83 28.19 1.48 1.49 1.49 1.50 1.50 1.50 1.50 1.51 1.53 1.52 1.52 1.52 1.53 1.55 Total 15.62 19.96 19.07 23.73 23.69 14.96 18.76 17.92 22.19 22.76 14.23 17.49 16.72 20.56 21.68 Sens Capacity MBtuh 1.47 Total Sys KW 85 (29.4) 1.76 1.74 1.74 1.74 1.74 1.74 1.72 1.72 1.71 1.71 1.72 1.71 1.69 1.68 1.68 26.50 24.04 22.01 22.26 22.22 26.14 23.60 21.58 21.38 21.34 25.63 23.03 21.04 20.58 20.31 15.05 19.20 18.25 22.26 22.22 14.36 18.00 17.12 21.38 21.34 13.61 16.75 15.94 19.70 20.31 2.00 1.98 1.97 1.97 1.97 1.98 1.97 1.94 1.94 1.94 1.96 1.95 1.91 1.91 1.90 24.67 22.07 20.08 20.68 20.65 24.31 21.66 19.66 19.84 19.80 23.80 21.14 19.13 18.81 18.78 14.41 18.37 17.36 20.68 20.65 13.70 17.17 16.24 19.84 19.80 12.93 15.93 15.07 18.81 18.78 2.27 2.25 2.21 2.22 2.22 2.25 2.23 2.18 2.18 2.18 2.23 2.20 2.15 2.14 2.14 CONDENSER ENTERING AIR TEMPERATURES _F (_C) 95 (35) 105 (40.6) Total Total Total Capacity MBtuh Capacity MBtuh Sys Sys Sys Total Sens Total Sens KW KW KW VL-A24 Outdoor Section With NONE Indoor Section 115 (46.1) 22.61 19.75 17.74 18.81 18.78 22.19 19.36 17.37 18.02 17.99 21.65 18.89 16.92 17.11 17.08 Total 13.70 17.37 16.30 18.81 18.78 12.94 16.20 15.21 18.02 17.99 12.14 14.98 14.08 17.11 17.08 Sens Capacity MBtuh 50VL-- A 2.57 2.50 2.45 2.47 2.47 2.54 2.47 2.42 2.44 2.43 2.52 2.44 2.39 2.40 2.40 Total Sys KW 125 (51.7) 20.03 17.35 15.43 16.93 16.90 19.67 17.00 15.09 16.22 16.19 19.22 16.58 14.70 15.39 15.36 Total 12.76 16.33 15.18 16.93 16.90 12.02 15.20 14.18 16.22 16.19 11.24 14.01 13.09 15.39 15.36 Sens Capacity MBtuh 2.86 2.77 2.72 2.76 2.76 2.83 2.74 2.69 2.72 2.72 2.79 2.71 2.66 2.68 2.68 Total Sys KW 13 1.92 1.92 1.92 1.94 24.01 24.91 19.27 1.89 22.65 29.36 1.89 27.98 1.92 1.89 28.26 29.32 1.87 17.78 1.90 1.86 22.07 18.56 1.87 21.21 1.89 1.87 26.01 23.54 1.86 Total Sys KW 26.99 75 (23.9) Capacity MBtuh Total Sens 57 26.99 (13.8) 62 27.80 (16.6) 63* 28.37 875/0.03 (17.2) 67 30.73 (19.4) 72 33.46 (22.2) 57 28.26 (13.8) 62 28.57 (16.6) 63* 29.05 1000/0.04 (17.2) 67 31.37 (19.4) 72 33.95 (22.2) 57 29.32 (13.8) 62 29.36 (16.6) 63* 29.55 1125/0.05 (17.2) 67 31.84 (19.4) 72 34.29 (22.2) See Legend and Notes on Page 18. CFM/BF EWB _F (_C) EVAPORATOR AIR 50VL--A30 PERFORMANCE DATA (CONT) 33.28 30.59 28.22 28.35 28.31 32.92 30.12 27.73 27.32 27.27 32.40 29.48 27.09 26.54 26.03 18.91 24.37 23.33 28.35 28.31 18.14 22.95 21.95 27.32 27.27 17.30 21.44 20.50 25.26 26.03 85 (29.4) Capacity MBtuh Total Sens 2.17 2.15 2.15 2.15 2.15 2.14 2.12 2.13 2.13 2.12 2.10 2.10 2.09 2.08 2.08 31.97 29.08 26.63 27.14 27.10 31.61 28.60 26.16 26.13 26.09 31.09 27.98 25.54 25.04 24.84 18.40 23.70 22.53 27.14 27.10 17.60 22.25 21.15 26.13 26.09 16.72 20.72 19.70 24.35 24.84 2.43 2.41 2.40 2.41 2.41 2.39 2.38 2.36 2.36 2.36 2.36 2.35 2.32 2.31 2.31 30.44 27.00 24.43 25.49 25.45 30.05 26.53 23.97 24.49 24.45 29.42 25.91 23.41 23.33 23.28 17.85 22.80 21.47 25.49 25.45 16.99 21.33 20.11 24.49 24.45 16.04 19.78 18.68 23.33 23.28 28.11 24.60 22.07 23.68 23.65 27.65 24.15 21.65 22.76 22.72 27.07 23.61 21.13 21.67 21.63 17.06 21.73 20.33 23.68 23.65 16.09 20.29 19.03 22.76 22.72 15.10 18.78 17.63 21.67 21.63 3.01 2.93 2.88 2.92 2.91 2.98 2.89 2.85 2.87 2.87 2.93 2.85 2.81 2.82 2.82 115 (46.1) Capacity Total MBtuh Sys KW Total Sens 50VL-- A 2.71 2.68 2.62 2.64 2.64 2.68 2.63 2.59 2.60 2.59 2.64 2.59 2.55 2.55 2.55 CONDENSER ENTERING AIR TEMPERATURES _F (_C) 95 (35) 105 (40.6) Total Capacity Total Capacity Total Sys MBtuh Sys MBtuh Sys KW KW KW Total Sens Total Sens VL-A30 Outdoor Section With NONE Indoor Section 25.43 22.02 19.66 21.73 21.70 25.04 21.60 19.13 20.87 20.84 24.52 21.10 18.66 19.87 19.83 16.05 20.55 19.66 21.73 21.70 15.12 19.20 17.84 20.87 20.84 14.14 17.72 16.51 19.87 19.83 3.31 3.22 3.17 3.21 3.21 3.26 3.18 3.12 3.16 3.16 3.21 3.13 3.08 3.11 3.11 125 (51.7) Capacity Total MBtuh Sys KW Total Sens 14 75 (23.9) Capacity MBtuh Total Sens 57 32.04 32.04 (13.8) 62 32.91 27.48 (16.6) 63* 33.62 22.38 1050/0.04 (17.2) 67 36.45 23.33 (19.4) 72 39.67 18.74 (22.2) 57 33.50 33.50 (13.8) 62 33.79 29.49 (16.6) 63* 34.36 23.89 1200/0.05 (17.2) 67 37.19 24.89 (19.4) 72 40.13 19.52 (22.2) 57 34.72 34.72 (13.8) 62 34.77 34.77 (16.6) 63* 34.95 25.34 1350/0.06 (17.2) 67 37.71 26.36 (19.4) 72 40.41 20.21 (22.2) See Legend and Notes on Page 18. CFM/BF EWB _F (_C) EVAPORATOR AIR 50VL--A36 31.05 31.59 32.24 35.13 38.63 32.48 32.53 32.96 35.85 39.14 33.67 33.72 33.50 36.39 39.47 2.20 2.21 2.21 2.22 2.25 2.25 2.25 2.25 2.27 2.30 2.30 2.30 2.30 2.32 20.28 26.30 25.12 33.72 33.67 19.50 24.76 23.65 32.53 32.48 18.63 23.14 22.10 27.24 31.05 85 (29.4) Capacity MBtuh Total Sens 2.19 Total Sys KW PERFORMANCE DATA (CONT) 2.60 2.58 2.58 2.58 2.58 2.55 2.54 2.53 2.53 2.53 2.50 2.49 2.47 2.46 2.46 38.09 34.73 31.73 32.42 32.38 37.77 34.20 31.14 31.22 31.16 37.24 33.48 30.40 29.83 29.67 20.14 26.08 24.75 32.42 32.38 19.31 24.50 23.23 31.22 31.16 18.38 22.83 21.63 29.66 29.67 2.91 2.90 2.88 2.89 2.89 2.86 2.85 2.81 2.82 2.81 2.81 2.80 2.75 2.74 2.74 36.46 32.19 29.03 30.47 30.42 35.97 31.64 28.52 29.30 29.25 35.25 30.96 27.88 27.93 27.89 20.02 25.52 23.98 30.47 30.42 19.03 23.89 22.48 29.30 29.25 17.95 22.18 20.90 27.93 27.89 3.26 3.22 3.16 3.19 3.18 3.21 3.16 3.10 3.11 3.11 3.16 3.09 3.04 3.04 3.04 CONDENSER ENTERING AIR TEMPERATURES _F (_C) 95 (35) 105 (40.6) Total Capacity Total Capacity Total Sys MBtuh Sys MBtuh Sys KW KW KW Total Sens Total Sens VL-A36 Outdoor Section With NONE Indoor Section 33.65 29.33 26.24 28.36 28.32 33.15 28.84 25.75 27.28 27.24 32.48 28.22 25.18 26.01 25.97 19.42 24.77 23.10 28.36 28.32 18.34 23.16 21.66 27.28 27.24 17.21 21.45 20.09 26.01 25.97 3.64 3.55 3.49 3.53 3.53 3.58 3.49 3.43 3.46 3.46 3.51 3.42 3.37 3.38 3.38 115 (46.1) Capacity Total MBtuh Sys KW Total Sens 50VL-- A 30.47 26.31 23.49 26.07 26.03 30.03 25.80 22.79 25.08 25.04 29.45 25.24 22.23 23.90 23.86 18.63 23.80 23.49 26.07 26.03 17.54 22.30 20.63 25.08 25.04 16.41 20.62 19.16 23.90 23.86 4.02 3.92 3.85 3.91 3.91 3.95 3.85 3.79 3.84 3.83 3.88 3.78 3.72 3.76 3.76 125 (51.7) Capacity Total MBtuh Sys KW Total Sens 15 2.68 2.67 2.56 2.47 35.51 36.77 28.53 2.65 33.53 43.17 2.67 41.36 2.68 2.69 41.50 43.07 2.42 26.39 2.44 2.53 32.67 27.51 2.64 31.44 2.54 2.67 38.45 34.80 2.72 Total Sys KW 39.61 75 (23.9) Capacity MBtuh Total Sens 57 39.61 (13.8) 62 41.07 (16.6) 63* 41.95 1225/0.03 (17.2) 67 45.37 (19.4) 72 49.27 (22.2) 57 41.50 (13.8) 62 42.21 (16.6) 63* 42.97 1400/0.04 (17.2) 67 46.35 (19.4) 72 50.00 (22.2) 57 43.07 (13.8) 62 43.17 (16.6) 63* 43.75 1575/0.05 (17.2) 67 47.03 (19.4) 72 50.51 (22.2) See Legend and Notes on Page 18. CFM/BF EWB _F (_C) EVAPORATOR AIR 50VL--A42 PERFORMANCE DATA (CONT) 48.10 44.64 41.32 41.17 41.12 47.63 43.98 40.58 39.89 39.58 46.93 43.06 39.60 38.75 37.75 27.01 34.95 33.62 41.17 41.12 26.00 33.00 31.68 39.13 39.58 24.87 30.92 29.62 36.39 37.75 85 (29.4) Capacity MBtuh Total Sens 2.90 2.99 3.10 3.10 3.10 2.87 2.97 3.08 3.10 3.11 2.85 2.96 3.07 3.09 3.11 45.48 41.77 37.99 38.57 38.51 45.07 41.00 37.25 37.03 36.97 44.47 39.97 36.33 35.55 35.18 25.44 33.12 31.40 38.57 38.51 24.46 31.10 29.48 37.03 36.97 23.37 28.94 27.46 33.89 35.18 3.37 3.44 3.52 3.52 3.52 3.33 3.42 3.49 3.49 3.49 3.31 3.40 3.45 3.46 3.47 42.80 38.00 34.37 35.73 35.67 42.19 37.31 33.72 34.31 34.25 41.33 36.45 32.90 32.66 32.60 24.21 30.88 29.08 35.73 35.67 23.04 28.90 27.26 34.31 34.25 21.77 26.82 25.32 32.66 32.60 39.02 34.12 30.58 32.75 32.70 38.40 33.50 29.98 31.45 31.39 37.56 32.72 29.27 29.92 29.87 22.42 28.58 26.74 32.75 32.70 21.21 26.70 25.02 31.45 31.39 19.92 24.71 23.19 29.92 29.87 4.27 4.35 4.37 4.36 4.36 4.25 4.31 4.34 4.32 4.32 4.23 4.27 4.30 4.29 4.29 115 (46.1) Capacity Total MBtuh Sys KW Total Sens 50VL-- A 3.79 3.90 3.94 3.92 3.92 3.76 3.87 3.90 3.89 3.90 3.74 3.83 3.87 3.87 3.87 CONDENSER ENTERING AIR TEMPERATURES _F (_C) 95 (35) 105 (40.6) Total Capacity Total Capacity Total Sys MBtuh Sys MBtuh Sys KW KW KW Total Sens Total Sens VL-A42 Outdoor Section With NONE Indoor Section 34.83 30.10 26.77 29.63 29.59 34.25 29.50 26.10 28.45 28.40 33.52 28.81 25.42 27.06 27.01 20.52 26.23 26.77 29.63 29.59 19.32 24.50 22.75 28.45 28.40 18.06 22.62 21.06 27.06 27.01 4.79 4.80 4.81 4.80 4.80 4.76 4.76 4.77 4.76 4.76 4.71 4.72 4.73 4.72 4.72 125 (51.7) Capacity Total MBtuh Sys KW Total Sens 16 2.98 3.00 3.00 2.99 2.99 3.06 3.06 3.06 3.05 3.05 3.12 3.11 3.11 3.10 3.11 42.40 34.72 36.12 29.34 47.96 45.54 37.01 38.48 30.60 49.74 49.61 39.21 40.72 31.74 Total Sys KW 45.84 75 (23.9) Capacity MBtuh Total Sens 57 45.84 (13.8) 62 47.63 (16.6) 63* 48.63 1400/0.04 (17.2) 67 52.66 (19.4) 72 57.51 (22.2) 57 47.96 (13.8) 62 48.90 (16.6) 63* 49.79 1600/0.05 (17.2) 67 53.81 (19.4) 72 58.37 (22.2) 57 49.74 (13.8) 62 50.02 (16.6) 63* 50.68 1800/0.06 (17.2) 67 54.66 (19.4) 72 58.98 (22.2) See Legend and Notes on Page 18. CFM/BF EWB _F (_C) EVAPORATOR AIR 50VL--A48 PERFORMANCE DATA (CONT) 55.61 51.27 47.38 47.06 47.00 55.05 50.48 46.56 45.80 45.32 54.21 49.43 45.52 44.58 43.32 30.01 38.58 37.03 47.06 47.00 28.87 36.40 34.90 43.03 45.32 27.62 34.10 32.68 40.08 43.32 3.53 3.52 3.53 3.53 3.53 3.47 3.46 3.47 3.47 3.47 3.41 3.41 3.41 3.40 3.39 51.97 47.75 43.79 44.13 44.06 51.47 47.00 42.93 42.41 42.32 50.75 46.02 41.85 40.96 40.27 28.16 36.43 34.77 44.13 44.06 27.05 34.30 32.66 42.41 42.32 25.85 32.06 30.46 37.50 40.27 3.99 3.97 3.98 3.98 3.98 3.93 3.92 3.90 3.89 3.89 3.86 3.86 3.82 3.80 3.79 48.35 43.18 39.13 40.35 40.29 47.81 42.43 38.42 38.82 38.76 46.93 41.50 37.52 36.99 36.93 26.51 34.03 32.09 40.35 40.29 25.40 31.88 30.10 38.82 38.76 24.09 29.66 28.03 36.99 36.93 4.48 4.47 4.38 4.41 4.41 4.41 4.39 4.31 4.32 4.32 4.35 4.31 4.23 4.23 4.23 CONDENSER ENTERING AIR TEMPERATURES _F (_C) 85 (29.4) 95 (35) 105 (40.6) Capacity Total Capacity Total Capacity Total MBtuh Sys MBtuh Sys MBtuh Sys KW KW KW Total Sens Total Sens Total Sens VL-A48 Outdoor Section With NONE Indoor Section 43.87 38.53 34.61 36.69 36.64 43.22 37.88 33.97 35.30 35.24 42.34 37.03 33.20 33.63 33.57 24.71 31.47 29.48 36.69 36.64 23.43 29.44 27.62 35.30 35.24 22.07 27.31 25.66 33.63 33.57 4.99 4.93 4.84 4.89 4.89 4.94 4.86 4.77 4.80 4.80 4.88 4.77 4.69 4.70 4.70 115 (46.1) Capacity Total MBtuh Sys KW Total Sens 50VL-- A 38.98 33.83 30.08 32.97 32.92 38.39 33.20 29.47 31.72 31.66 37.63 32.47 28.77 30.21 30.16 22.66 28.88 26.75 32.97 32.92 21.38 27.00 25.14 31.72 31.66 20.03 24.99 23.31 30.21 30.16 5.56 5.44 5.33 5.41 5.41 5.50 5.35 5.26 5.32 5.31 5.42 5.27 5.18 5.21 5.21 125 (51.7) Capacity Total MBtuh Sys KW Total Sens 17 2250/0.27 2000/0.23 1750/0.19 CFM/BF 57 (13.8) 62 (16.6) 63* (17.2) 67 (19.4) 72 (22.2) 57 (13.8) 62 (16.6) 63* (17.2) 67 (19.4) 72 (22.2) 57 (13.8) 62 (16.6) 63* (17.2) 67 (19.4) 72 (22.2) EWB _F (_C) EVAPORATOR AIR 50VL--A60 51.74 40.84 67.13 73.55 48.72 66.24 49.60 46.80 61.65 62.51 57.92 60.82 62.44 60.36 60.36 62.44 36.96 71.36 62.35 45.58 65.05 62.35 43.88 60.48 38.94 53.94 59.45 72.62 57.97 57.97 75 (23.9) Capacity MBtuh Total Sens 4.16 4.07 4.01 4.01 4.01 4.06 3.98 3.92 3.91 3.91 3.97 3.88 3.83 3.82 3.80 Total Sys KW 68.82 62.86 58.59 59.07 58.99 68.04 62.11 57.84 57.29 57.19 66.97 61.08 56.84 55.93 38.84 49.53 47.45 59.07 58.99 36.99 46.60 44.73 57.29 57.19 35.08 43.55 41.90 51.73 55.02 85 (29.4) Capacity MBtuh Total Sens 55.02 PERFORMANCE DATA (CONT) 4.57 4.48 4.42 4.43 4.43 4.47 4.39 4.33 4.32 4.32 4.38 4.29 4.23 4.22 4.21 Total Sys KW 63.97 58.50 54.57 55.56 55.49 63.32 57.86 53.93 53.96 53.88 62.43 57.00 53.09 52.32 51.93 36.82 47.31 45.27 55.56 55.49 35.02 44.46 42.64 53.96 53.88 33.17 41.50 39.89 49.43 51.93 5.02 4.94 4.87 4.89 4.89 4.93 4.85 4.78 4.79 4.79 4.83 4.75 4.69 4.68 4.68 58.95 53.98 50.40 51.88 51.82 58.45 53.47 49.88 50.47 50.41 57.72 52.75 49.17 48.74 48.68 34.76 45.03 43.04 51.88 51.82 33.03 42.28 40.51 50.47 50.41 31.22 39.41 37.85 48.74 48.68 5.54 5.46 5.39 5.42 5.42 5.45 5.36 5.30 5.32 5.31 5.35 5.27 5.21 5.21 5.21 53.76 49.29 46.08 47.99 47.93 53.38 48.88 45.65 46.78 46.72 52.82 48.31 45.08 45.29 45.23 32.68 42.69 40.74 47.99 47.93 30.99 40.05 38.32 46.78 46.72 29.25 37.28 35.75 45.29 45.23 6.12 6.04 5.98 6.02 6.02 6.03 5.95 5.89 5.92 5.91 5.94 5.86 5.80 5.81 5.81 115 (46.1) Capacity Total MBtuh Sys KW Total Sens 50VL-- A CONDENSER ENTERING AIR TEMPERATURES _F (_C) 95 (35) 105 (40.6) Capacity Total Capacity Total MBtuh Sys MBtuh Sys KW KW Total Sens Total Sens 48.40 44.47 41.62 43.88 43.84 48.15 44.14 41.27 42.88 42.83 47.74 43.70 40.81 41.61 41.56 30.58 40.24 38.30 43.88 43.84 28.93 37.77 36.06 42.88 42.83 27.24 35.10 33.61 41.61 41.56 6.77 6.70 6.65 6.69 6.69 6.68 6.61 6.56 6.59 6.59 6.59 6.52 6.47 6.49 6.49 125 (51.7) Capacity Total MBtuh Sys KW Total Sens 18 = 1.10 x cfm Sensible capacity (Btuh) air leaving evaporator coil (hlwb) Wet---bulb temperature corresponding to enthalpy = tedb --- hlwb = hewb --4.5 x cfm total capacity (Btuh) Where: hewb = Enthalpy of air entering evaporator coil 4. The SHC is based on 805 F (26.6_C) edb temperature of air entering evaporator coil. Below 80_F (26.6_C) edb, subtract (corr factor x cfm) from SHC. Above 80_ F (26.6_C) edb, add (corr factor x cfm) to SHC. Correction Factor = 1.10 x (1 + BF) x (edb --- 80). 5. Integrated capacity is maximum (instantaneous) capacity less the effect of frost on the outdoor coil and the heat required to defrost it. tlwb tldb COOLING NOTES: 1. Ratings are net; they account for the effects of the evaporator ---fan motor power and heat. 2. Direct interpolation is permissible. Do not extrapolate. 3. The following formulas may be used: * At 75qF (24qC) entering dry bulb---Tennessee Valley Authority (TVA) rating conditions; all others at 80qF (27qC) dry bulb. LEGEND BF— Bypass Factor edb— Entering Dry ---Bulb Ewb— Entering Wet---Bulb kW — Total Unit Power Input SHC— Sensible Heat Capacity (1000 Btuh) TC — Total Capacity (1000 Btuh) (net) rh—Relative Humidity PERFORMANCE DATA (CONT) 50VL-- A 19 VOLTAGE DISTRIBUTION V/3/60 200 208 230 240 MOTOR SPEED WIRE COLOR 0.1 0.2 0.3 Low Blue CFM 754 650 538 Med-Low Pink CFM 851 777 675 Medium1 Red CFM 941 851 774 50VL-A24 Med-High Orange CFM 1009 917 840 High Black CFM 1241 1167 1111 Low Blue CFM 741 638 547 Med-Low Pink CFM 973 887 823 Medium Red CFM 1088 1023 954 50VL-A30 Med-High1 Orange CFM 1140 1064 996 High Black CFM 1202 1140 1082 Low Blue CFM 1234 1168 1093 Med-Low Pink CFM 1290 1223 1154 Medium1 Red CFM 1354 1290 1226 50VL-A36 Med-High Orange CFM 1606 1546 1489 High Black CFM 1630 1580 1517 Low Blue CFM 1295 1234 1182 Med-Low Pink CFM 1345 1282 1235 Medium Red CFM 1505 1452 1413 50VL-A42 Med-High1 Orange CFM 1545 1492 1449 High Black CFM 1705 1643 1607 Low Blue CFM 1402 1351 1311 Med-Low Pink CFM 1457 1404 1367 Medium1 Red CFM 1736 1695 1642 50VL-A48 Med-High Orange CFM 2149 2111 2062 High Black CFM 2344 2306 2259 Med-Low Pink CFM 1678 1635 1602 Medium1 Red CFM 1962 1915 1880 50VL-A60 Med-High Orange CFM 2131 2088 2065 High Black CFM 2461 2409 2339 * Air delivery values are without air filter and are for dry coil (See 50VL ---A Wet Coil Pressure Drop table). 1 Factory ---shipped cooling speed Note: Deduct field---supplied air filter pressure drop and wet coil pressure drop to obtain external static pressure available for ducting. Shaded areas indicate speed/static combinations that are not permitted for dehumidification speed. Note: Deduct 10% for 208 volt operation. UNIT Dry Coil Air Delivery* -- Horizontal Discharge -- Unit 50VL--A24--60 240 HEATER kW RATING Multiplication Factors PERFORMANCE DATA (CONT) 50VL-- A EXTERNAL STATIC PRESSURE (IN. W.C.) 0.4 0.5 0.6 429 ----591 475 --684 576 479 759 667 577 1036 969 881 415 ----733 665 538 881 800 723 915 840 758 1015 961 881 1021 961 894 1090 1027 977 1158 1102 1046 1430 1371 1316 1463 1407 1339 1126 1075 1016 1194 1140 1095 1358 1323 1282 1411 1362 1313 1568 1518 1483 1263 1224 1172 1318 1284 1233 1601 1553 1512 2026 1980 1945 2203 2141 2070 1558 1513 1474 1843 1794 1753 2013 1982 1941 2286 2192 2140 0.7 ------447 818 --451 658 687 810 825 894 981 1258 1277 955 1027 1234 1278 1448 1136 1197 1465 1905 1991 1438 1711 1888 2062 0.8 --------731 ----563 564 732 759 828 918 1208 1210 898 974 1169 1231 1404 1080 1144 1427 1864 1902 1404 1675 1860 1968 MULTIPLICATION FACTOR 0.69 0.75 0.92 1.00 0.9 --------640 ----461 480 631 687 762 843 1140 1131 857 921 1130 1188 1360 1041 1104 1381 1793 1803 1349 1628 1785 1874 20 50VLA30 50VLA24 UNIT Pink Red Orange Black Blue MedLow Medium1 MedHigh High Low Red Orange Black Medium MedHigh1 High Pink Blue Low MedLow WIRE COLOR MOTOR SPEED Dry Coil Air Delivery -- Downflow Discharge CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP 1026 146 BHP 1264 250 BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP 0.10 809 85 0.09 875 101 0.11 939 119 0.13 1026 146 0.16 1264 250 0.27 756 84 0.09 1002 144 0.15 1110 188 0.20 1160 213 0.23 1240 254 0.27 0.20 664 82 0.09 787 111 0.12 860 124 0.13 949 151 0.16 1202 261 0.28 669 90 0.10 928 155 0.17 1025 195 0.21 1091 225 0.24 1173 266 0.29 0.30 554 87 0.09 693 115 0.12 748 134 0.14 873 161 0.17 1134 274 0.29 548 96 0.10 842 161 0.17 967 205 0.22 1004 232 0.25 1110 274 0.29 EXTERNAL STATIC PRESSURE (IN. W.C.) 0.40 0.50 0.60 0.70 447 ---------95 ---------0.10 ---------612 498 392 ---125 131 142 ---0.13 0.14 0.15 ---663 591 472 399 138 147 155 164 0.15 0.16 0.17 0.18 786 694 604 516 167 177 183 195 0.18 0.19 0.20 0.21 1070 1002 931 870 279 290 296 308 0.30 0.31 0.32 0.33 457 ---------106 ---------0.11 ---------733 660 560 450 173 185 192 203 0.19 0.20 0.21 0.22 879 814 706 611 211 223 236 243 0.23 0.24 0.25 0.26 945 866 804 699 243 249 261 273 0.26 0.27 0.28 0.29 1031 966 902 821 284 295 302 315 0.30 0.32 0.32 0.34 50VL-- A 0.80 ------------------------------------806 319 0.34 ------------------509 255 0.27 615 285 0.31 726 327 0.35 0.90 ------------------------------------699 328 0.35 ---------------------------496 291 0.31 626 331 0.35 1.0 ------------------------------------610 332 0.36 ---------------------------------------------- 21 50VLA42 50VLA36 UNIT Pink Red Orange Black Blue MedLow Medium1 MedHigh High Low Red Orange Black Medium MedHigh1 High Pink Blue Low MedLow WIRE COLOR MOTOR SPEED Dry Coil Air Delivery -- Downflow Discharge CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP 0.10 1277 285 0.31 1312 314 0.34 1381 358 0.38 1631 567 0.61 1681 618 0.66 1365 177 0.19 1425 197 0.21 1582 267 0.29 1623 285 0.31 1775 371 0.40 0.20 1215 289 0.31 1260 324 0.35 1326 365 0.39 1579 576 0.62 1633 626 0.67 1324 189 0.20 1384 210 0.23 1549 280 0.30 1586 299 0.32 1736 386 0.41 0.30 1147 299 0.32 1203 329 0.35 1269 375 0.40 1525 581 0.62 1575 636 0.68 1284 201 0.22 1339 223 0.24 1509 294 0.32 1553 312 0.33 1696 401 0.43 50VL-- A EXTERNAL STATIC PRESSURE (IN. W.C.) 0.40 0.50 0.60 0.70 1094 1045 992 932 305 314 319 328 0.33 0.34 0.34 0.35 1153 1095 1050 995 340 344 355 361 0.36 0.37 0.38 0.39 1212 1161 1121 1070 383 391 395 406 0.41 0.42 0.42 0.44 1477 1423 1372 1336 592 598 609 617 0.63 0.64 0.65 0.66 1526 1478 1415 1366 644 652 653 649 0.69 0.70 0.70 0.70 1233 1181 1127 1084 210 222 236 248 0.23 0.24 0.25 0.27 1301 1254 1199 1151 235 248 257 271 0.25 0.27 0.28 0.29 1469 1433 1392 1346 308 322 336 344 0.33 0.35 0.36 0.37 1511 1470 1433 1393 324 335 349 363 0.35 0.36 0.37 0.39 1660 1622 1588 1557 410 424 439 453 0.44 0.45 0.47 0.49 0.80 874 335 0.36 943 372 0.40 1019 418 0.45 1284 619 0.66 1312 642 0.69 1039 261 0.28 1104 284 0.30 1300 359 0.38 1350 378 0.41 1516 468 0.50 0.90 826 347 0.37 889 382 0.41 974 424 0.45 1233 613 0.66 1249 627 0.67 984 269 0.29 1065 296 0.32 1249 374 0.40 1309 393 0.42 1472 483 0.52 1.0 757 352 0.38 829 387 0.42 912 434 0.47 1166 598 0.64 1159 602 0.65 939 281 0.30 1015 305 0.33 1213 387 0.42 1261 407 0.44 1426 497 0.53 22 Black High Blue Low Orange Black High MedHigh Orange MedHigh Red Red Medium1 Medium1 Pink MedLow Pink Blue Low MedLow WIRE COLOR MOTOR SPEED CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP CFM WATTS BHP 0.10 1503 225 0.24 1556 244 0.26 1861 400 0.43 2319 758 0.81 2532 1014 1.09 1479 224 0.24 1841 425 0.46 1944 486 0.52 2178 674 0.72 2480 1029 1.10 cooling speed. 0.20 1457 233 0.25 1508 261 0.28 1822 417 0.45 2291 769 0.82 2487 1022 1.10 1436 239 0.26 1796 434 0.47 1913 501 0.54 2148 691 0.74 2432 1012 1.09 0.30 1423 246 0.26 1461 268 0.29 1786 426 0.46 2255 787 0.84 2444 1015 1.09 1387 247 0.26 1761 453 0.49 1872 511 0.55 2105 703 0.75 2375 995 1.07 EXTERNAL STATIC PRESSURE (IN. W.C.) 0.40 0.50 0.60 0.70 1374 1330 1287 1241 254 269 282 292 0.27 0.29 0.30 0.31 1432 1388 1346 1302 281 290 305 319 0.30 0.31 0.33 0.34 1758 1716 1688 1660 441 452 467 482 0.47 0.48 0.50 0.52 2230 2193 2166 2118 799 808 823 822 0.86 0.87 0.88 0.88 2391 2330 2259 2179 994 965 935 898 1.07 1.03 1.00 0.96 1346 1298 1253 1206 262 270 284 300 0.28 0.29 0.30 0.32 1724 1690 1651 1616 460 476 485 501 0.49 0.51 0.52 0.54 1838 1801 1771 1731 529 537 554 565 0.57 0.58 0.59 0.61 2073 2036 2002 1967 717 733 743 758 0.77 0.79 0.80 0.81 2322 2236 2161 2085 975 941 908 869 1.05 1.01 0.97 0.93 Shaded areas indicate speed/static combinations that are not permitted. NOTE: Deduct field--supplied air filter pressure drop and wet coil pressure drop to obtain external static pressure available for ducting. 1 Factory--shipped *Air delivery values are without air filter and are for dry coil (See 50VL Wet Coil Pressure Drop table). 50VLA60 50VLA48 UNIT Dry Coil Air Delivery -- Downflow Discharge 50VL-- A 0.80 1199 307 0.33 1256 330 0.35 1619 492 0.53 2057 805 0.86 2111 858 0.92 1160 307 0.33 1578 508 0.54 1698 578 0.62 1919 754 0.81 2006 836 0.90 0.90 1153 314 0.34 1221 345 0.37 1583 507 0.54 1992 780 0.84 2033 823 0.88 1114 319 0.34 1527 525 0.56 1655 595 0.64 1845 734 0.79 1917 796 0.85 1.0 1111 329 0.35 1168 353 0.38 1539 519 0.56 1887 737 0.79 1949 786 0.84 1061 330 0.35 1478 542 0.58 1613 603 0.65 1751 701 0.75 1808 751 0.81 23 600 0.03 700 0.04 800 0.04 900 0.05 0.05 0.06 1000 0.06 0.06 0.06 0.05 5.0 3.5, 4.0 COOLING TONS 2.0, 2.5, 3.0 -- -- -- 600 -- -- -- 700 -- -- 0.09 800 -- -- 0.14 -- -- 0.16 1000 0.08 0.10 0.06 0.04 0.07 0.09 0.05 900 1200 1100 600--1400CFM 12x20x1+12x20x1 (305x508x25+305x508x25 1200--1800 CFM 16x24x1+14x24x1 (406x610x25+356x610x25) 1500--2200 CFM 16x24x1+18x24x1 (406x610x25+457x610x25) FILTER SIZE IN. (MM) -- -- 5.0 0.03 600 3.5, 4.0 COOLING TONS 2.0, 2.5, 3.0 -- -- 0.05 700 -- -- 0.06 800 -- -- 0.08 900 -- -- 0.10 1000 Horizontal and Downflow Filter Pressure Drop Table (IN. W.C.) 600--1400CFM 12x20x1+12x20x1 (305x508x25+305x508x25) 1200--1800 CFM 16x24x1+14x24x1 (406x610x25+356x610x25) 1500--2200 CFM 16x24x1+18x24x1 (406x610x25+457x610x25) FILTER SIZE IN. (MM) Economizer with 1--in. Filter Pressure Drop (IN. W.C.) UNIT SIZE 24 30 36 42 48 60 50VL--A Wet Coil Pressure Drop (IN. W.C.) PERFORMANCE DATA (CONT) -- -- 0.11 1100 -- -- 0.18 1100 -- 0.07 0.13 1200 -- 0.10 0.25 1200 0.11 0.11 0.07 0.06 0.08 0.10 0.06 0.09 0.10 0.07 1600 0.09 0.11 0.01 1700 -- 0.12 0.3 0.15 0.13 -- 0.17 0.14 -- -- 0.08 0.14 -- 0.09 0.16 0.04 0.09 -- 0.08 0.11 -- 1700 0.18 0.16 -- 1700 0.11 0.12 0.08 1800 50VL-- A 0.06 0.10 -- STANDARD CFM (SCFM) 1300 1400 1500 1600 -- 0.11 0.28 STANDARD CFM (SCFM) 1300 1400 1500 1600 0.14 0.08 0.09 STANDARD CFM (SCFM) 1300 1400 1500 0.10 0.12 -- 1800 0.20 0.16 -- 1800 0.11 -- -- 1900 0.21 -- -- 1900 0.13 0.09 1900 0.13 -- -- 2000 0.22 -- -- 2000 0.14 0.10 2000 0.14 -- -- 2100 0.23 -- -- 2100 0.12 2100 0.15 -- -- 2200 0.23 -- -- 2200 0.13 2200 24 0.00 0.00 15 kW 20 kW 0.00 0.00 0.00 0.02 15 kW 20 kW 1100 5 kW 10 kW STATIC Large Cabinet: 42--60 0.00 0.00 500 5 kW 10 kW STATIC 0.02 0.03 0.00 0.00 1200 0.00 0.00 0.00 0.00 600 0.03 0.04 0.00 0.01 1300 0.00 0.02 0.00 0.00 700 0.04 0.05 0.01 0.02 1400 Electric Heat Pressure Drop Tables (IN. W.C.) Small Cabinet: 24--36 0.05 0.06 0.02 0.03 1500 0.02 0.04 0.00 0.00 800 0.06 0.07 0.03 0.04 1600 0.04 0.06 0.00 0.00 900 0.08 0.09 0.00 0.04 1100 0.07 0.08 0.04 0.05 1700 0.08 0.09 0.05 0.06 1800 0.09 0.10 0.06 0.07 1900 STANDARD CFM (SCFM) 0.06 0.08 0.00 0.02 1000 STANDARD CFM (SCFM) 0.10 0.11 0.07 0.08 2000 0.10 0.11 0.00 0.06 1200 0.11 0.12 0.08 0.09 2100 0.12 0.13 0.02 0.07 1300 50VL-- A 0.12 0.13 0.09 0.10 2200 0.14 0.15 0.04 0.09 1400 0.13 0.14 0.10 0.11 2300 0.16 0.17 0.06 0.10 1500 0.14 0.15 0.11 0.12 2400 0.15 0.16 0.12 0.13 2500 0.18 0.19 0.07 0.11 1600 TYPICAL PIPING AND WIRING INDOOR THERMOSTAT FROM POWER SOURCE TOP COVER DISCONNECT PER NEC* POWER ENTRY CONTROL ENTRY 25 *NEC - NATIONAL ELECTRICAL CODE 50VL-- A RETURN AIR APPLICATION DATA Maximum cooling airflow — To minimize the possibility of condensate blow--off from the evaporator, airflow through the units should not exceed 450 cfm per ton. Minimum cooling airflow — Minimum cooling airflow is 350 cfm per ton. Minimum ambient cooling operation temperature — All standard units have a minimum ambient operating temperature of 40_F (4_C). With accessory low ambient temperature kit, units can operate at temperatures down to 0_F (--17_C). 50VL-- A Condensate trap — A 2--in. (50.8 mm) condensate trap must be field supplied. Ductwork — Secure downflow discharge ductwork to roof curb. For horizontal discharge applications, attach ductwork to unit with flanges. To convert a unit to downflow discharge — Units are equipped with factory--installed inserts in the downflow openings. Removal of the inserts is similar to removing an electrical knock--out. 26 ELECTRICAL DATA NOMINAL VOLTAGE RANGE MIN MAX ELECTRIC HEAT COMPRESSOR RLA LRA OFM IFM FLA FLA 50VL-A24---30-- 208/230-1-60 197 253 13.5 58.3 0.7 4.1 50VL-A30---30-- 208/230-1-60 197 253 12.8 64 0.7 4.1 50VL-A30---50-- 208/230-3-60 197 253 8.3 77 0.7 4.1 50VL-A36---30-- 208/230-1-60 197 253 14.1 77 1.2 6.0 50VL-A36---50-- 208/230-3-60 197 253 9 77 1.2 6.0 50VL-A36---60-- 460-3-60 414 506 5.6 38 0.5 3.0 50VL-A42---30-- 208/230-1-60 197 253 17.9 112 1.2 6.0 50VL-A42---50-- 208/230-3-60 197 253 13.5 112 1.2 6.0 50VL-A42---60-- 460-3-60 414 506 6 44 0.5 3.0 50VL-A48---30-- 208/230-1-60 197 253 21.8 117 1.2 7.6 50VL-A48---50-- 208/230-3-60 197 253 13.7 117 1.2 7.6 50VL-A48---60-- 460-3-60 414 506 6.2 41 0.5 3.8 50VL-A60---30-- 208/230-1-60 197 253 26.4 134 1.2 7.6 50VL-A60---50-- 208/230-3-60 197 253 16 134 1.2 7.6 27 NOMINAL kW -/3.8/5 5.4/7.2 7.5/10 -/3.8/5 5.4/7.2 7.5/10 11.3/15 -/3.8/5 7.5/10 11.3/15 -/3.8/5 5.4/7.2 7.5/10 11.3/15 -/3.8/5 7.5/10 11.3/15 -/3.8/5 7.5/10 11.3/15 -/3.8/5 5.4/7.2 7.5/10 11.3/15 15/20 -/3.8/5 7.5/10 11.3/15 15/20 -/3.8/5 7.5/10 11.3/15 15/20 -/3.8/5 5.4/7.2 7.5/10 11.3/15 15/20 -/3.8/5 7.5/10 11.3/15 15/19.91 -/3.8/5 7.5/10 11.3/15 15/20 -/3.8/5 5.4/7.2 7.5/10 11.3/15 15/20 -/3.8/5 7.5/10 11.3/15 15/19.91 POWER SUPPLY FLA MCA MOCP -/18.1/20.8 25.9/30 36.1/41.7 -/18.1/20.8 25.9/30 36.1/41.7 54.2/62.5 -/10.4/12 20.8/24.1 31.2/36.1 -/18.1/20.8 25.9/30 36.1/41.7 54.2/62.5 -/10.4/12 20.8/24.1 31.2/36.1 -/6 12 18 -/18.1/20.8 25.9/30 36.1/41.7 54.2/62.5 72.2/83.3 -/10.4/12 20.8/24.1 31.2/36.1 41.4/47.9 -/6 12 18 24.1 -/18.1/20.8 25.9/30 36.1/41.7 54.2/62.5 72.2/83.3 -/10.4/12 20.8/24.1 31.2/36.1 41.4/47.9 -/6 12 18 24.1 -/18.1/20.8 25.9/30 36.1/41.7 54.2/62.5 72.2/83.3 -/10.4/12 20.8/24.1 31.2/36.1 41.4/47.9 21.7 27.8/31.1 37.5/42.6 50.3/57.3 20.8 27.8/31.1 37.5/42.6 50.3/57.3 72.9/83.3 15.2 18.1/20.1 31.1/35.3 44.1/50.3 24.8 30.1/33.5 39.9/45 52.6/59.6 75.3/85.6 18.5 20.5/22.5 33.5/37.6 46.5/52.6 10.5 11.3/11.3 18.8/18.8 26.3/26.3 29.6 30.1/33.5 39.9/45 52.6/59.6 75.3/85.6 97.8/111.6 24.1 24.1/24.1 33.5/37.6 46.5/52.6 59.3/67.4 11.0 11.3/11.3 18.8/18.8 26.3/26.3 33.9/33.9 36.1 36.1/36.1 41.9/47 54.6/61.6 77.3/87.6 99.8/113.6 25.9 25.9/25.9 35.5/39.6 48.5/54.6 61.3/69.4 12.1 12.3/12.3 19.8/19.8 27.3/27.3 34.9/34.9 41.8 41.8/41.8 41.9/47 54.6/61.6 77.3/87.6 99.8/113.6 28.8 28.8/28.8 35.5/39.6 48.5/54.6 61.3/69.4 30 30/35 40/45 60/60 30 30/35 40/45 60/60 80/90 20 20/25 35/40 45/60 35 35/35 40/45 60/60 80/90 25 25/25 35/40 50/60 15 15 20 30 40 40/40 40/45 60/60 80/90 100/125 35 35/35 35/40 50/60 60/70 15 15 20 30 35 50 50/50 50/50 60/70 80/90 100/125 35 35/35 40/40 50/60 70/70 15 15 20 30 35 60 60/60 60/60 60/70 80/90 100/125 40 40/40 40/40 50/60 70/70 50VL-- A UNIT ELECTRICAL DATA (CONT) UNIT NOMINAL VOLTAGE RANGE MIN 50VL-A60---60-- 460-3-60 414 MAX 506 ELECTRIC HEAT COMPRESSOR RLA 7.8 LRA 52 OFM IFM FLA FLA 0.5 3.8 NOMINAL kW -/3.8/5 7.5/10 11.3/15 15/20 POWER SUPPLY FLA MCA MOCP -/6 12 18 24.1 14.1 14.1/14.1 19.8/19.8 27.3/27.3 34.9/34.9 20 20 20 30 35 50VL-- A LEGEND FLA - Full Load Amps IDM - Inducer Motor IFM - Indoor Fan Motor LRA -Locked Rotor Amps MCA - Minimum Circuit Amps MOCP - Maximum Over Current Protection OFM - Outdoor Fan Motor RLA - Rated Load Amps A06564 28 50VL-- A CONNECTION WIRING SCHEMATIC 208/230--1--60 A11004 29 50VL-- A LADDER WIRING SCHEMATIC 208/230--1--60 A11003 30 50VL-- A CONNECTION WIRING SCHEMATIC 208/230--3--60 A11010 31 50VL-- A LADDER WIRING SCHEMATIC 208/230--3--60 A11009 32 CONNECTION WIRING SCHEMATIC 460--3--60 CONNECTION WIRING DIAGRAM DANGER: ELECTRICAL SHOCK HAZARD DISCONNECT POWER BEFORE SERVICING BLK GRN L1 UNIT ONLY MAXIMUM WIRE SIZE 2 AWG. C 1 L3 1 BLK 11 21 BLK YEL 13 23 YEL OFM YEL CAP BLK BRN COMPRESSOR PLUG T1 L2 BLU 1 EQUIP_GND FU1 5 AMP 6 T3 BLU T2 YEL YEL 8 YEL C 460V 1 2 3 L2 GND GRN-YEL L1 COM BLK BLK C COMP 230V GRN/YEL IFM BRN 4 1 2 34 5 8 AUTOTRANSFORMER GRY 2 2 3 3 4 4 1 1 5 5 9 9 SEE NOTE 5 460 460 RED & 6 BRN TRAN 24 24 BLK ORN BRN BRN BLK PNK 12 RED YEL BLU RED SEE NOTE 4 GRY HIGH 9 ACCESSSORY ELECTRIC HEAT STD DEHUM LOW BRN COM C COM RED R R SEE NOTE 7 C SEE NOTE COM Y2 TSTAT WHT YEL W2 WHT W3 VIO IFB 1 VIO 1 PNK 1 GRY P4 1 2 3 4 P2 C Y W2 R BRN HR1,2,3 PNK BRN 1 INDOOR FAN SECTION LPS CONTROL BOX AREA 21 SINGLE PT. CONNECTION FOR ELECT.HEAT HPS CAP 23 C 11 13 TRAN IFB COMP R EQUIP. GND SEE HEATER SCHEMATIC FOR WIRING S BRN BRN HR1 & 2 (10 KW) HR3 HR1,2 & 3 (15 KW) BLU BLU FIELD SPLICE TERMINAL (MARKED) ENERGIZED TERMINAL (UNMARKED) SPLICE (IF USED) SPLICE (MARKED) FACTORY WIRING FIELD CONTROL WIRING FIELD POWER WIRING ACCESSORY OR OPTIONAL WIRING TO INDICATE COMMON POTENTIAL ONLY: NOT TO REPRESENT WIRING C1 C C2 C CONTACTOR CAP CAPACITOR CCH CRANK CASE HEATER COMP COMPRESSOR MOTOR DH DEHUMIDIFICATION MODE DEHUM DEHUMIDIFICATION MODE ECON ECONOMIZER GND GROUND HPS HIGH PRESSURE SWITCH HR HEATER RELAY IFB INTERFACE FAN BOARD IFM INDOOR FAN MOTOR LPS LOW PRESSURE SWITCH OFM OUTDOOR FAN MOTOR STD STANDARD MODE TRAN TRANSFORMER NOTES: IFM HC F C 3 & 4 (20 KW) LEGEND COLOR CODE BLK BLACK BLU BLUE BRN BROWN GRY GRAY GRN GREEN ORN ORANGE PNK PINK RED RED VIO VIOLET WHT WHITE YEL YELLOW OFM HR4 LPS BLK UNIT COMPONENT ARRANGEMENT OUTDOOR FAN SECTION BRN 3 HR2 GRY 1 HPS BLK COMPRESSOR SECTION BRN HR1 BRN 1 2 3 4 5 BLU VIO C W2 W2 W3 W3 GRN HR1 (5 KW) WHT 1 1 2 3 4 5 6 7 G DH 1 Y Y1 R C Y1/Y G Y2/DH W2 W3 12 RED SAT 3A 24VAC YEL BLU 10 8 BLU BLU FUSE 10 11 PNK PNK YEL GND ECON P1 11 6 RED FU2 5 AMP BLK 7 BLK SEE NOTE BLK ECON PLUG 7 FOR WIRING WITH ELECTRIC HEATERS SEE SCHEMATIC ON HEATER ACCESSORY. RED BLK 50VL-- A FIELD SUPPLY POWER SCHEMATIC 460-3-60 IF USED CCH DISCONNECT PER NEC CCH 24V SPLICE BOX 24V POWER ENTRY 1. IF ANY OF THE ORIGINAL WIRES FURNISHED ARE REPLACED, IT MUST BE REPLACED WITH TYPE 90 DEGREE C WIRE OR IT'S EQUIVALENT. 2. SEE PRICE PAGES FOR THERMOSTAT AND SUBBASES. 3. USE 75 DEGREE COPPER CONDUCTORS FOR FIELD INSTALLATION. 4. REFER TO INSTALLATION INSTRUCTIONS FOR CORRECT SPEED SELECTION OF IFM. 5. RELOCATION OF SPEED TAPS MAY BE REQUIRED WHEN USING FIELD INSTALLED ELECTRIC HEATERS, CONSULT INSTALLATION INSTRUCTIONS TO DETERMINE CORRECT SPEED TAP SETTING. 6. "DO NOT DISCONNECT PLUG UNDER LOAD." 7. THIS FUSE IS MANUFACTURED BY LITTELFUSE, P/N 257003 8. THESE FUSES ARE MANUFACTURED BY COOPER BUSSMAN, P/N FNQ-R-5 9. DEHUM FEATURE CANNOT BE USED WHEN ECONOMIZER IS INSTALLED. UNIT FACTORY-SHIPPED IN STD MODE. A10204 33 LADDER WIRING SCHEMATIC 460--3--60 LADDER WIRING DIAGRAM DANGER: ELECTRICAL SHOCK HAZARD DISCONNECT POWER BEFORE SERVICING L1 L2 L3 G/Y BLK 11 BLK IF USED 21 11 YEL CCH RED C 23 BLK 13 GRN OFM R C S BLK YEL BRN YEL CAP 50VL-- A BLU T1 BLK T2 YEL T3 COMP BLK 11 YEL C L G NX 13 G/Y IFM 460V TRAN BLK RED SEE NOTE 7 Y1 G DH P1-1 P1-2 RED BRN YEL W2 WHT W3 VIO Y2 VIO 13 G/Y "R" "C" P1-3 P1-4 P1-5 GRN BLU YEL 24V IFB FUSE 3A R C 24V 24VAC RED 460V "Y1/Y" "G" "Y2/DH" P1-6 P1-7 "W2" "W3" P2-1 P2-2 P2-3 P2-4 LPS HPS Y BLK BLK BLU C1 BLU C C2 BRN C,TRAN ACCESSORY ELECTRIC HEAT BRN YEL P4-1 WHT WHT HR1 P4-2 VIO VIO HR4 P4-3 PNK PNK HR2 P4-4 GRY GRY HR3 P4-5 BRN BRN LOW SEE NOTE STD DEHUM HIGH C G/Y SEE NOTE 4 BRN BLK BRN BRN ECON HARNESS 2 3 4 BRN 5 9 BLU PNK RED ORN BLK 1 2 3 4 IFM C BRN COM C 6 PNK BLU 7 PNK BLU SAT 8 5 BRN RED 50VL500271 34 D CONTROLS Operating sequence NOTE: On units with a Time Guard“ II device: Once the compressor has started and then stopped, it cannot be restarted again until 5 minutes have elapsed. Heating — If accessory electric heaters are installed, on a call for heat, circuit R--W is made through the thermostat contacts. Circuit R--G is made which energizes the IFR. If the heaters are staged, then the thermostat closes a second set of contacts (W2) when second stage is required. When thermostat is satisfied, contacts open, deenergizing the heater relay and the IFR. 50VL-- A Cooling — When the system thermostat calls for cooling, 24 V is supplied to the “Y” and “G” terminals of the thermostat. This completes the circuit to the contactor coil (C) and indoor (evaporator) fan relay (IFR). The normally open contacts of energized C close and complete the circuit through compressor motor (COMP) to outdoor (condenser) fan motor (OFM). Both motors start instantly. The set of normally open contacts of energized IFR close and complete the circuit through IFM. The IFM starts instantly. On the loss of the thermostat call for cooling, 24 V is removed from both the “Y” and “G” terminals (provided the fan switch is in the “AUTO” position) de--energizing the compressor contactor and opening the contacts supplying power to compressor/OFM. After a 90--second delay, the IFM shuts off. If the thermostat fan selector switch is in the “ON” position, the IFM will run continuously. For the 460 V units there is a step down autotransformer supplying 230 V to the Indoor Fan Motor. 35 GUIDE SPECIFICATIONS 50VL-- A Packaged Air Conditioner System Constant Volume Application HVAC Guide Specifications Size Range: 2 to 5 Tons, Nominal Cooling Model Number: 50VL--A Part 1 — General SYSTEM DESCRIPTION Outdoor rooftop mounted or ground mounted, electric cooling unit utilizing a hermetic scroll compressor for cooling duty. Unit shall discharge supply air vertically or horizontally as shown on contract drawings. Condenser fan/coil section shall have a draw--thru design with vertical discharge for minimum sound levels. QUALITY ASSURANCE A. Unit shall be rated in accordance with AHRI Standards 210/240 and 270. B. Unit shall be designed in accordance with UL Standard 1995. C. Unit shall be manufactured in a facility registered to ISO 9001 manufacturing quality standard. D. Unit shall be UL listed and c--UL certified as a total package for safety requirements. E. Roof curb shall be designed to conform to NRCA Standards. F. Insulation and adhesives shall meet NFPA 90A requirements for flame spread and smoke generation. G. Cabinet insulation shall meet ASHRAE Standard 62P. DELIVERY, STORAGE AND HANDLING Unit shall be stored and handled per manufacturer’s recommendations. Part 2 — Products EQUIPMENT A. General: Factory--assembled, single--piece, heating and cooling unit. Contained within the enclosure shall be all factory wiring, piping, controls, refrigerant charge with R--410A refrigerant, and special features required prior to field start--up. B. Unit Cabinet: 1. Unit cabinet shall be constructed of phosphated, zinc--coated, pre--painted steel capable of with--standing 500 hours in salt spray. 2. Normal service shall be through a single removable cabinet panel. 3. The unit shall be constructed on a rust proof unit base that has an externally trapped, integrated sloped drain. 4. Evaporator fan compartment top surface shall be insulated with a minimum 1/2--in. (12.7 mm) thick, flexible fiberglass insulation, coated on the air side and retained by adhesive and mechanical means. The evaporator wall sections will be insulated with a minimum semi--rigid foil-faced board capable of being wiped clean. Aluminum foil-faced fiberglass insulation shall be used in the entire indoor air cavity section. 5. Unit shall have a field--supplied condensate trap. C. Fans: 1. The evaporator fan shall be an ECM Motor. 2. Fan wheel shall be made from steel, be double--inlet type with forward curved blades with corrosion resistant finish. Fan wheel shall be dynamically balanced. D. E. F. G. H. I. J. K. L. 36 3. Condenser fan shall be direct drive propeller type with aluminum blades riveted to corrosion resistant steel spiders, be dynamically balanced, and discharge air vertically. Compressor: 1. Fully hermetic compressors with factory--installed vibration isolation. 2. Scroll compressors shall be standard on all units. Coils: Evaporator and condenser coils shall have aluminum plate fins mechanically bonded to seamless copper tubes with all joints brazed. Tube sheet openings shall be belled to prevent tube wear. Refrigerant Components: Refrigerant expansion device shall be of the TXV (thermostatic expansion valve) type. Filters: Filter section shall consist of field--installed, throwaway, 1--in. (25 mm) thick fiberglass filters of commercially available sizes. Controls and Safeties: 1. Unit controls shall be complete with a self--contained low voltage control circuit. 2. Compressors shall incorporate a solid--state compressor protector that provides reset capability. Operating Characteristics: 1. Unit shall be capable of starting and running at 125_F (51_C) ambient outdoor temperature per maximum load criteria of AHRI Standard 210. 2. Compressor with standard controls shall be capable of operation down to 40_F (4_C) ambient outdoor temperature. 3. Units shall be provided with fan time delay to prevent cold air delivery before the heat exchanger warms up. 4. Unit shall be provided with 90--second fan time delay after the thermostat is satisfied. Electrical Requirements: All unit power wiring shall enter the unit cabinet at a single location. Motors: 1. Compressor motors shall be of the refrigerant--cooled type with line--break thermal and current overload protection. 2. All fan motors shall have permanently lubricated bearings, and inherent, automatic reset, thermal overload protection. Special Features: 1. Coil Options: Base unit with tin plated indoor coil hairpins. 2. Compressor Start Kit (single phase units only): Shall provide additional starting torque for single--phase compressors. 3. Thermostat: To provide for one--stage heating and cooling in addition manual or automatic changeover and indoor fan control. 4. Crankcase Heater: Shall provide anti--floodback protection for low--load cooling applications. 5. Economizer: a. Economizer controls capable of providing free cooling using outside air. b. Equipped with low leakage dampers not to exceed 3% leakage, at 1.0 IN. W.C. pressure differential. c. Spring return motor shuts off outdoor damper on power failure. 6. Electric Heaters: a. Electric heater shall be availabel as a field--installed option. b. Heater elements shall be open wire type, adequately supported and insulated with ceramic bushings. c. Electric heater packages must provide single point power connection capability. 7. Filter Rack Kit: Shall provide filter mounting for downflow applications. 8. Flat Roof Curb: Curbs shall have seal strip and a wood nailer for flashing and shall be installed per manufacturer’s instructions. 9. Low Ambient Package: Shall consist of a solid--state control and condenser coil temperature sensor for controlling condenser--fan motor operation, which shall allow unit to operate down to 0_F (--17.7_C) outdoor ambient temperature when properly installed. 10. Manual Outdoor Air Damper: Package shall consist of damper, birdscreen, and rainhood which can be preset to admit outdoor air for year--round ventilation. 11. Square--To--Round Duct Transitions (24--48 size): Shall have the ability to convert the supply and return openings from rectangular to round. 12. Time Guard II Automatically prevents the compressor from restarting for at least 4 minutes and 45 seconds after shutdown of the compressor. Not required when a corporate programmable thermostat is applied or with a RTU--MP control. 13. Dual Point Electric Heaters Allows you to power the electric heater and unit contactor separately by having two individual field power supply circuits connected respectively. 37 50VL-- A GUIDE SPECIFICATIONS (CONT) 50VL-- A Copyright 2011 Carrier Corp. D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 07/11 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 38 Catalog No: 50VL---07PD Replaces: 50VL--- 06PD