Installation, Start-up And Service Instructions

Transcript

50TJ008-014 Single-Package Rooftop Cooling Units Installation, Start-Up and Service Instructions CONTENTS INSTALLATION Page SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26 Step 1 — Provide Unit Support . . . . . . . . . . . . . . . 1 • ROOF CURB • SLAB MOUNT Step 2 — Field Fabricate Ductwork . . . . . . . . . . . 1 Step 3 — Install External Trap for Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Step 4 — Rig and Place Unit . . . . . . . . . . . . . . . . . 2 • POSITIONING Step 5 — Make Electrical Connections . . . . . . . 7 • FIELD POWER SUPPLY • FIELD CONTROL WIRING Step 6 — Adjust Factory-Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 • APOLLO CONTROL • MANUAL OUTDOOR-AIR DAMPER • OPTIONAL DURABLADE ECONOMIZER • OPTIONAL PARABLADE ECONOMIZER Step 7 — Adjust Evaporator-Fan Speed . . . . . 16 START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26,27 SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-31 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . 32-34 START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . CL-1 Unit is shipped in the vertical discharge configuration. To convert to horizontal configuration, remove screws from horizontal duct opening covers and remove covers. Using the same screws, install covers on duct openings in basepan of unit with the insulation-side down. Seals around duct openings must be tight. See Fig. 1. SAFETY CONSIDERATIONS Installation and servicing air-conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should install, repair, or service air-conditioning equipment. Untrained personnel can perform basic maintenance functions of cleaning coils and filters and replacing filters. All other operations should be performed by trained service personnel. When working on air-conditioning equipment, observe precautions in the literature, tags and labels attached to the unit, and other safety precautions that may apply. Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for unbrazing operations. Have fire extinguishers available for all brazing operations. Before performing service or maintenance operations on unit, turn off main power switch to unit. Electrical shock could cause personal injury. Step 1 — Provide Unit Support ROOF CURB — Assemble and install accessory roof curb in accordance with instructions shipped with curb. See Fig. 2. Install insulation, cant strips, roofing felt, and counter flashing as shown. Ductwork must be attached to curb, not to unit. If electric or control power is to be routed through the basepan, attach the accessory thru-the-bottom service connection sockets to the roof curb in accordance with the accessory installation instructions. Connection sockets must be installed before unit is set on roof curb. IMPORTANT: The gasketing of the unit to the roof curb is critical for a watertight seal. Install gasket supplied with the roof curb as shown in Fig. 2. Improperly applied gasket can also result in air leaks and poor unit performance. Curb should be level. This is necessary for unit drain to function properly. Unit leveling tolerances are shown in Fig. 3. Refer to Accessory Roof Curb Installation Instructions for additional information as required. SLAB MOUNT (Horizontal Units Only) — Provide a level concrete slab that extends a minimum of 6 in. beyond unit cabinet. Install a gravel apron in front of outdoor-coil air inlet to prevent grass and foliage from obstructing airflow. NOTE: Horizontal units may be installed on a roof curb if required. Step 2 — Field Fabricate Ductwork — On vertical discharge units, secure all ducts to roof curb and building structure. Do not connect ductwork to unit. For horizontal applications, field-supplied flanges should be attached to horizontal discharge openings and all ductwork attached to the flanges. Insulate and weatherproof all external ductwork, joints, and roof openings with counter flashing and mastic in accordance with applicable codes. Ducts passing through an unconditioned space must be insulated and covered with a vapor barrier. If plenum return is used on a vertical unit, the return should be ducted through the roof deck to comply with applicable fire codes. Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 4 Catalog No. 565-003 Printed in U.S.A. Form 50TJ-11SI Pg 1 11-96 Replaces: 50TJ-4SI Tab 1b 6b Fig. 1 — Horizontal Conversion Panels A minimum clearance to combustibles is not required around ductwork on vertical discharge units. On horizontal discharge units, a minimum clearance of 1 in. is required for the first 12 in. of ductwork. Cabinet return-air static shall not exceed –.35 in. wg with Durablade or PARABLADE economizer or –.45 in. wg without economizer. Step 4 — Rig and Place Unit — Inspect unit for transportation damage. File any claim with transportation agency. Keep unit upright and do not drop. Spreader bars are not required if top crating is left on unit. Rollers may be used to move unit across a roof. Level by using unit frame as a reference. See Table 1 and Fig. 6 for additional information. Operating weight is shown in Table 1 and Fig. 6. Lifting holes are provided in base rails as shown in Fig. 6 and 7. Refer to rigging instructions on unit. Step 3 — Install External Trap for Condensate Drain — The unit’s 3⁄4-in. condensate drain connections are located at the bottom and side of the unit. Unit discharge connections do not determine the use of drain connections; either drain connection can be used with vertical or horizontal applications. When using the standard side drain connection, make sure the plug in the alternate bottom connection is tight before installing the unit. To use the bottom drain connection for a roof curb installation, relocate the factory-installed plug from the bottom connection to the side connection. See Fig. 4. The piping for the condensate drain and external trap can be completed after the unit is in place. All units must have an external trap for condensate drainage. Install a trap at least 4 in. deep and protect against freezeup. See Fig. 5. If drain line is installed downstream from the external trap, pitch the line away from the unit at 1 in. per 10 ft of run. Do not use a pipe size smaller than the unit connection. All panels must be in place when rigging. POSITIONING — Maintain clearance around and above unit to provide proper airflow and service access. See Fig. 7. Position unit on roof curb so that the following clearances are maintained: 1⁄4-in. clearance between roof curb and base rails on each side and front of unit; 15⁄32-in. clearance between roof curb and rear of unit (see Fig. 2, section C-C). Do not install unit in an indoor location. Do not locate unit air inlet near exhaust vents or other sources of contaminated air. Although unit is weatherproof, guard against water from higher level runoff and overhangs. After unit is in position, remove shipping materials and rigging skid. 2 CONNECTION SIZES UNIT SIZE 50TJ (B( (C( (D( ALT DRAIN HOLE 008-014 28-87⁄169 [827] 18-1015⁄169 [583] 13⁄49 [45] POWER CONNECTION CONTROL CONNECTION ⁄ 9 NPT ⁄ 9 NPT 34 12 11⁄49 NPT ⁄ 9 NPT 12 UNIT SIZE 50TJ (A( 008-014 18-29 [356] 28-09 [610] CONNECTOR ACCESSORY PACKAGE CRBTMPWR00A100 (Thru-the-Bottom) CRBTMPWR00A200 (Thru-the-Bottom) ROOF CURB ACCESSORY CRRFCURB003A00 CRRFCURB004A00 NOTES: 1. Roof curb accessory is shipped unassembled. 2. Insulated panels. 3. Dimensions in [ ] are in millimeters. 4. Roof curb: galvanized steel. 5. Attach ductwork to curb (flanges of duct rest on curb). 6. Service clearance 4 ft on each side. 7. Direction of airflow. 8. Either accessory connector package can be used with either accessory roof curb. Fig. 2 — Roof Curb Details 3 MAXIMUM ALLOWABLE DIFFERENCE (in.) A-B 0.5 B-C 1.0 A-C 1.0 Fig. 3 — Unit Leveling Tolerance NOTE: Trap should be deep enough to offset maximum unit static difference. A 4-in. trap is recommended. Fig. 4 — Condensate Drain Pan Fig. 5 — External Trap Condensate Drain NOTES: 1. Dimension in ( ) is in millimeters. 2. Hook rigging shackles through holes in base rail, as shown in detail ‘‘A.’’ Holes in base rails are centered around the unit center of gravity. Use wooden top skid when rigging to prevent rigging straps from damaging unit. 3. Unit weights do not include economizer. See Table 1 for unit weight of economizer. UNIT 50TJ 008 009 012 014 MAX WEIGHT lb 755 760 915 930 All panels must be in place when rigging. Fig. 6 — Rigging Details 4 kg 342 345 415 422 ‘‘A’’ in. 77.42 77.42 77.42 77.42 mm 1967 1967 1967 1967 DIMENSIONS ‘‘B’’ in. mm 40.25 1022 40.25 1022 40.25 1022 40.25 1022 ‘‘C’’ in. mm 41.31 1050 41.31 1050 49.31 1253 49.31 1253 Table 1 — Physical Data BASE UNIT 50TJ NOMINAL CAPACITY (tons) OPERATING WEIGHT (lb) Unit Durablade Economizer PARABLADE Economizer Roof Curb* COMPRESSOR TYPE Quantity Oil (oz) REFRIGERANT TYPE Operating Charge (lb-oz) Circuit 1 Circuit 2 CONDENSER COIL Rows...Fins/in. Total Face Area (sq ft) CONDENSER FAN Nominal Cfm Quantity...Diameter (in.) Motor Hp...Rpm Watts Input (total) EVAPORATOR COIL Rows...Fins/in. Total Face Area (sq ft) EVAPORATOR FAN Quantity...Size (in.) Type Drive Nominal Cfm Maximum Continuous Bhp Motor Frame Size Fan Rpm Range Motor Bearing Type Maximum Allowable Rpm Motor Pulley Pitch Diameter Min/Max (in.) Fan Pulley Pitch Diameter (in.) Belt, Quantity...Type...Length (in.) Pulley Center Line Distance (in.) Speed Change per Full Turn of Movable Pulley Flange (rpm) Movable Pulley Maximum Full Turns From Closed Position Factory Setting Factory Speed Setting (rpm) 009 81⁄2 012 10 014 121⁄2 755 44 62 143 Reciprocating 2 54 ea 760 44 62 143 Reciprocating 2 54 ea 915 44 62 143 Reciprocating 2 54 ea 930 44 62 143 Scroll 2 54 ea R-22 4-13 4-14 Std Alt Std Alt Std Alt Std Alt Std Alt Std Alt Std Alt Std Alt Std Alt Std Alt Std Alt Std Alt Std Alt Std Alt Fan Shaft Diameter at Pulley (in.) HIGH-PRESSURE SWITCH (psig)† Standard Compressor Internal Relief (Differential) Cutout Reset (Auto.) LOW-PRESSURE/LOSS-OF-CHARGE SWITCH (psig)† Cutout Reset (Auto.) FREEZE-PROTECTION THERMOSTAT (F)† Opens Closes OUTDOOR-AIR INLET SCREENS Quantity...Size (in.) RETURN-AIR FILTERS Quantity...Size (in.) 008 71⁄2 6-14 5-13 8-10 6- 3 5-14 8- 6 Enhanced Copper Tubes, Aluminum Lanced Fins 1...17 2...17 2...17 2...17 20.50 18.00 17.42 25.06 Propeller Type 6400 6400 7000 7000 2...22 2...22 2...22 2...22 1⁄4...1100 1⁄4...1100 1⁄4...1100 1⁄4...1100 600 600 600 600 Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Acutrol™ Feed Device 3...15 3...15 3...15 4...15 8.0 8.0 10.0 11.1 Centrifugal Type 1...15 x 15 1...15 x 15 1...15 x 15 1...15 x 15 1...15 x 15 — 1...15 x 15 1...15 x 15 Belt Belt Belt Belt Belt — Belt Belt 3000 3400 4000 5000 3000 — 4000 5000 2.40 2.40 2.40 4.20 — — 2.90 5.25 56 56 56 56 — — 56 56 590-840 685-935 685- 935 860-1080 685-935 — 835-1085 900-1260 Ball Ball Ball Ball 2100 2100 2100 2100 2.4/3.4 2.8/3.8 2.8/3.8 4.0/5.0 2.8/3.8 — 3.4/4.4 3.1/4.1 7.0 7.0 7.0 8.0 7.0 — 7.0 5.9 1...A...48 1...A...48 1...A...51 1...A...51 1...A...51 — 1...A...57 1...BX...46 16.75-19.25 16.75-19.25 15.85-17.50 15.85-17.50 16.75-19.25 — 15.85-17.50 15.85-17.50 50 50 50 45 50 — 50 60 5 5 5 5 5 — 5 6 5 5 5 5 5 — 5 5 590 685 685 860 685 — 835 960 1 1 1 1 450 ± 50 428 320 500 ± 50 428 320 763 22 6 7 4...16 x 20 x 2 LEGEND Bhp — Brake Horsepower *Weight of 14-in. roof curb. †Requires an optional or accessory controls upgrade kit. 5 30 6 5 45 6 5 Cleanable 1...20 x 25 x 1 1...16 x 25 x 1 Throwaway 4...16 x 20 x 2 4...20 x 20 x 2 4...20 x 20 x 2 UNIT 50TJ 008 009 012 014 STD UNIT WEIGHT lb kg 755 342 760 345 915 415 930 422 CORNER WEIGHT (A) lb kg 164 74 165 75 199 90 202 92 CORNER WEIGHT (B) lb kg 140 64 141 64 170 77 172 78 CORNER WEIGHT (C) lb kg 208 94 209 94 252 114 256 116 CORNER WEIGHT (D) lb kg 243 110 245 111 294 134 300 136 ‘‘H’’ ft-in. 1-27⁄8 3-37⁄8 2-57⁄8 1-27⁄8 ‘‘J’’ mm 378 1013 759 378 A B C D E F ft-in. 3-55⁄16 3-55⁄16 4-15⁄16 4-15⁄16 ‘‘K’’ mm 1050 1050 1253 1253 ft-in. 2-911⁄16 2-911⁄16 3-03⁄8 3-03⁄8 mm 856 856 924 924 CONNECTION SIZES 13⁄89 dia [35] field power supply hole 21⁄29 dia [64] power supply knockout 13⁄49 dia [44] charging port hole 7⁄89 [22] field control wiring hole 3⁄49-14 NPT condensate drain 29 dia [51] power supply knockout BOTTOM POWER CHART: THESE HOLES REQUIRED FOR USE WITH ACCESSORY PACKAGES — CRBTMPWR001A00 (1⁄2(, 3⁄4(); CRBTMPWR002A00 (1⁄2(, 11⁄4() THREADED CONDUIT SIZE 1⁄2( 3⁄4( 11⁄4( WIRE USE 24 v POWER* POWER* REQ’D HOLE SIZES (MAX.) 7⁄89 [22.2] 11⁄89 [28.4] 13⁄49 [44.4] *Select either 3⁄49 or 11⁄49 for power, depending on wire size. NOTES: 1. Dimensions in [ 2. ] are in millimeters. Center of gravity. 3. Direction of airflow. 4. Ductwork to be attached to accessory roof curb only. 5. Minimum clearance (local codes or jurisdiction may prevail): a. Bottom to combustible surfaces (when not using curb) 0 inches. On horizontal discharge units with electric heat 1 in. clearance to ductwork for 1 ft. b. Condenser coil, for proper airflow, 36 in. one side, 12 in. the other. The side getting the greater clearance is optional. c. Overhead, 60 in. to assure proper condenser fan operation. d. Between units, control box side, 42 in. per NEC (National Electrical Code). e. Between unit and ungrounded surfaces, control box side, 36 in. per NEC. f. Between unit and block or concrete walls and other grounded surfaces, control box side, 42 in. per NEC. g. Horizontal supply and return end, 0 inches. 6. With the exception of the clearance for the condenser coil or combustibles as stated in Notes 5a, b, and c, a removable fence or barricade requires no clearance. 7. Units may be installed on combustible floors made from wood or class A, B, or C roof covering material. 8. The vertical center of gravity is 18-71⁄29 [495] for 008 and 009, 28-09 [610] for 012 and 014 up from the bottom of the base rail. Horizontal center of gravity is shown. Fig. 7 — Base Unit Dimensions 6 2. Pass control wires through the hole provided on unit (see connection D, Connection Sizes Table, Fig. 7). 3. Feed wire through the raceway built into the corner post to the 24-v barrier located on the left side of the control box. See Fig. 12. The raceway provides the UL-required (Underwriters’ Laboratories) clearance between the highand low-voltage wiring. 4. Connect thermostat wires to screw terminals of lowvoltage connector. Step 5 — Make Electrical Connections Unit cabinet must have an uninterrupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur. This ground may consist of electrical wire connected to unit ground lug in control compartment, or conduit approved for electrical ground when installed in accordance with NEC (National Electrical Code), ANSI /NFPA (American National Standards Institute/National Fire Protection Association), latest edition, and local electrical codes. Failure to follow this warning could result in the installer being liable for personal injury of others. FIELD POWER SUPPLY — All units except 208/230-v units are factory wired for the voltage shown on the nameplate. If the 208/230-v unit is to be connected to a 208-v power supply, the transformer must be rewired by moving the black wire from the 230-v red wire on the transformer and connecting it to the 200-v blue wire from the transformer. The end of the red wire then must be insulated. Refer to unit label diagram for additional information. Pigtails are provided for field wire connections. When installing units, provide a disconnect per NEC. Use copper conductors only when splice connectors are used. NOTE: When accessory thru-the-bottom connections are used, refer to accessory installation instructions for information on power wiring. Refer to Fig. 7 for drilling locations. All field wiring must comply with NEC and local requirements. In Canada, electrical connections must be in accordance with CSA (Canadian Standards Association) C22.1 Canadian Electrical Code Part One. Install field wiring as follows (see Fig. 8, 9, and 10): 1. Install conduit through side panel openings between disconnect and single point box (see Fig. 9 and 10). 2. Install power lines to terminal connections as shown in Fig. 8. Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate (see Table 2). On 3-phase units, voltages between phases must be balanced within 2% and the current within 10%. Use the formula shown in the legend for Table 2, Note 2 to determine the percentage of voltage imbalance. Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components. (Such operation would invalidate any applicable Carrier warranty.) FIELD CONTROL WIRING — Install a Carrier-approved accessory thermostat assembly according to installation instructions included with the accessory. Locate thermostat assembly on a solid wall in the conditioned space to sense average temperature in accordance with thermostat installation instructions. Route thermostat cable or equivalent single leads of colored wire from subbase terminals to low-voltage connections on unit (shown in Fig. 11) as described in Steps 1-4 below. NOTE: For wire runs up to 50 ft, use no. 18 AWG (American Wire Gage) insulated wire (35 C minimum). For 50 to 75 ft, use no. 16 AWG insulated wire (35 C minimum). For over 75 ft, use no. 14 AWG insulated wire (35 C minimum). All wire larger than no. 18 AWG cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat. 1. If unit is mounted on roof curb and accessory thru-thebottom connection is used, route wire through hole in basepan. LEGEND C — Contactor COMP(S) — Compressor(s) IFC — Indoor (Evaporator) Fan Contactor NEC — National Electrical Code TB — Terminal Block Terminal Block Connection Splice Connection Field Wiring Factory Wiring Fig. 8 — Power Wiring Connections 7 Table 2 — Electrical Data UNIT 50TJ NOMINAL VOLTAGE IFM Min 208/230-3-60 Std 008 (71⁄2 Tons) 009 (81⁄2 Tons) VOLTAGE RANGE 187 460-3-60 Std 414 575-3-60 Std 518 208/230-3-60 Std 187 460-3-60 Std 414 575-3-60 Std 518 Std 208/230-3-60 187 Alt Std 012 (10 Tons) 460-3-60 414 Alt Std 575-3-60 518 Alt COMPR (ea) OFM (ea) ELECTRIC HEAT* Nom Max RLA LRA Qty Hp FLA FLA FLA kW** — — 7.8/10.4 21.7/ 25.0 12.0/16.0 33.4/ 38.5 254 13.6 73.4 2 1⁄4 1.4 5.8 18.6/24.8 51.7/ 59.7 24.0/32.0 66.7/ 74.2 31.9/42.4 88.4/102.0 — — 13.9 16.7 16.5 19.8 508 6.2 37.7 2 1⁄4 0.8 2.6 27.8 33.4 33.0 39.7 41.7 50.2 — — 632 4.9 31.0 2 1⁄4 0.8 2.6 18.0 17.0 36.0 34.0 — — 7.8/10.4 21.7/ 25.0 12.0/16.0 33.4/ 38.5 254 15.8 92.0 2 1⁄4 1.4 5.8 18.6/24.8 51.7/ 59.7 24.0/32.0 66.7/ 77.0 31.8/42.4 88.4/102.0 — — 13.9 16.7 16.5 19.8 508 7.4 46.0 2 1⁄4 0.8 2.6 27.8 33.4 33.0 39.7 41.7 50.2 — — 632 5.9 44.0 2 1⁄4 0.8 2.6 18.0 17.0 36.0 34.0 — — 7.8/10.4 21.7/ 25.0 12.0/16.0 33.4/ 38.5 5.8 24.0/32.0 66.7/ 77.0 31.8/42.4 88.4/102.0 37.5/50.0 104.2/120.3 1 ⁄4 1.4 254 17.9 110 2 — — 7.8/10.4 21.7/ 25.0 33.4/ 38.5 7.5 12.0/16.0 24.0/32.0 66.7/ 77.0 31.8/42.4 88.4/102.0 37.5/50.0 104.2/120.3 — — 16.5 19.8 27.8 33.4 2.6 33.0 39.7 41.7 50.2 60.0 60.1 508 8.6 55.0 2 1⁄4 0.8 — — 16.5 19.8 27.8 33.4 3.4 33.0 39.7 41.7 50.2 50.0 60.1 — — 18.0 17.0 2.6 36.0 34.0 54.0 51.0 1 632 6.4 44.0 2 ⁄4 0.8 — — 18.0 17.0 3.4 36.0 34.0 54.0 51.0 IFM 8 POWER SUPPLY DISCONNECT SIZE† MCA MOCP†† FLA 39.2/ 39.2 39.2/ 39.2 48.9/ 55.4 71.9/ 81.8 90.6/103.5 117.8/134.8 18.0 24.1 28.1 45.0 52.9 65.9 14.2 23.8 45.1 44.2/ 44.2 44.2/ 44.2 48.9/ 55.4 71.9/ 81.8 90.6/103.5 117.7/134.8 20.7 24.1 28.1 45.0 52.9 65.9 16.5 23.8 45.1 48.9/ 48.9 48.9/ 48.9 48.9/ 55.4 90.6/103.5 117.7/134.8 137.5/127.5 50.6/ 50.6 50.6/ 50.6 51.0/ 57.5 92.8/105.6 119.9/136.9 139.7/129.7 23.4 28.1 45.0 52.9 65.9 63.4 24.2 29.1 46.0 53.9 66.9 64.4 17.6 23.8 45.1 53.6 18.2 24.6 45.9 54.4 45/ 45 45/ 45 50/ 60 80/ 90\ 100/110\ 125/150\ 25 25 30 50 60 70\ 20 25 50 50/ 50 50/ 50 50/ 60 80/ 90\ 100/110\ 125/150\ 25 25 30 50 60 70\ 20 25 50 60/ 60 60/ 60 60/ 60 100/110\ 125/150\ 150/150\ 60/ 60 60/ 60 60/ 60 100/110\ 125/150\ 150/150\ 30 30 50 60 70\ 70\ 30 30 50 60 70\ 70\ 20 25 50 60 20 25 50 60 41/ 41 41/ 41 45/ 51 66/ 75 83/ 95 108/124 19 22 26 41 49 61 15 22 41 46/ 46 46/ 46 46/ 51 66/ 75 83/ 95 108/124 22 22 26 41 49 61 17 22 41 51/ 51 51/ 51 51/ 51 83/ 95 108/124 127/145 53/ 53 53/ 53 53/ 53 85/ 97 110/126 129/147 24 26 41 49 61 72 25 27 42 50 62 73 18 22 42 61 19 23 42 62 LRA 194/194 99 81 231/231 116 107 267/267 286/286 134 173 107 139 Table 2 — Electrical Data (cont) UNIT 50TJ NOMINAL VOLTAGE IFM VOLTAGE RANGE COMPR (ea) Min Max RLA OFM (ea) IFM LRA Qty Hp FLA FLA 10.6 Std 208/230-3-60 014 (121⁄2 Tons) 187 254 23.0 146.0 2 ⁄ 14 1.4 Alt 15.0 Std 4.8 460-3-60 414 508 10.4 73.0 2 ⁄ 14 0.8 Alt 7.4 Std 4.8 575-3-60 518 632 8.3 58.4 2 ⁄ 14 0.8 Alt 7.4 LEGEND FLA — Full Load Amps HACR — Heating, Air Conditioning and Refrigeration IFM — Indoor (Evaporator) Fan Motor LRA — Locked Rotor Amps MCA — Minimum Circuit Amps MOCP — Maximum Overcurrent Protection NEC — National Electrical Code OFM — Outdoor (Condenser) Fan Motor RLA — Rated Load Amps ELECTRIC HEAT* Nom FLA kW** — — 7.8/10.4 21.7/ 25.0 12.0/16.0 33.4/ 38.1 24.0/32.0 66.7/ 74.2 31.8/42.4 88.4/102.0 37.5/50.0 104.2/120.3 — — 7.8/10.4 21.7/ 25.0 12.0/16.0 33.4/ 38.1 24.0/32.0 66.7/ 74.2 31.8/42.4 88.4/102.0 37.5/50.0 104.2/120.3 — — 16.5 19.8 27.8 33.4 33.0 39.7 41.7 50.2 50.0 60.1 — — 16.5 19.8 27.8 33.4 33.0 39.7 41.7 50.2 50.0 60.1 — — 18.0 17.0 36.0 34.0 54.0 51.0 — — 18.0 17.0 36.0 34.0 54.0 51.0 POWER SUPPLY MCA MOCP†† 65.2/ 65.2 65.2/ 65.2 65.2/ 65.2 96.5/109.5 123.6/140.8 143.7/133.5 69.6/ 69.6 69.6/ 69.6 69.6/ 69.6 102.0/115.0 129.1/146.3 149.0/139.0 29.6 30.8 47.8 55.6 68.7 66.1 32.2 34.1 51.0 58.9 71.9 69.4 23.6 26.1 47.3 56.0 25.7 28.7 50.1 58.6 80/ 80\ 80/ 80\ 80/ 80\ 100/125\ 125/150\ 150/150\ 80/ 80\ 80/ 80\ 80/ 80\ 110/125\ 150/150\ 150/175\ 35 35 50 60 70\ 80\ 35 40 60 60 80\ 80\ 30 30 50 60 35 35 60 70\ DISCONNECT SIZE† FLA LRA 68/ 68 68/ 68 68/ 68 89/101 383/383 114/130 132/151 73/ 73 73/ 73 73/ 73 94/106 406/406 119/135 137/156 31 31 44 192 51 63 75 34 34 47 203 54 66 78 25 25 154 44 63 27 27 163 46 66 EXAMPLE: Supply voltage is 460-3-60. AB = 452 v BC = 464 v AC = 455 v 452 + 464 + 455 Average Voltage = 3 1371 = 3 = 457 Determine maximum deviation from average voltage. (AB) 457 − 452 = 5 v (BC) 464 − 457 = 7 v (AC) 457 − 455 = 2 v Maximum deviation is 7 v. *Heater capacity (kW) is based on heater voltage of 208 v, 240 v, 480 v, and 575 v. If power distribution voltage to unit varies from rated heater voltage, heater kW will vary accordingly. †Used to determine minimum disconnect size per NEC. **Heaters are field installed only. ††Fuse or HACR circuit breaker. \Fusing in single point box provides the required branch circuit protection. Determine percent of voltage imbalance. 7 % Voltage Imbalance = 100 x 457 = 1.53% NOTES: 1. In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker. The Canadian units may be fuse or circuit breaker. 2. Unbalanced 3-Phase Supply Voltage Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine the percent of voltage imbalance. % Voltage Imbalance: max voltage deviation from average voltage = 100 x average voltage This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%. IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric utility company immediately. 9 RACEWAY HOLE IN END PANEL (HIDDEN) Fig. 9 — Conduit Installation Fig. 12 — Field Control Wiring Raceway DISCHARGE MOUNTING LOCATION MAIN CONTROL BOX EMT OR RIGID CONDUIT (FIELD SUPPLIED) SINGLE POINT BOX BRACKET AND CONDUIT DRIP BOOT CENTER POST Step 6 — Adjust Factory-Installed Options APOLLO CONTROL — The optional Apollo control is used to actively monitor all modes of operation as well as indoor (evaporator) fan status, filter status, and indoor-air quality. The Apollo control is designed to work with Carrier TEMP and VVTt systems. The thermostat must be wired to the Apollo control before starting the unit. Refer to the Apollo control installation instructions for information on installing the thermostat. See Fig. 13 for Apollo location. MANUAL OUTDOOR-AIR DAMPER — The outdoor-air hood and screen are attached to the basepan at the bottom of the unit for shipping. SINGLE POINT BOX MOUNTING SCREWS EMT — Electro-Metallic Tubing Fig. 10 — Typical Component Location CONTROL WIRING APOLLO CONTROL WIRING TO THERMOSTAT LEGEND AHA CC TC TH — — — — Adjustable Heat Anticipator Cooling Compensator Thermostat-Cooling Thermostat-Heating Field Wiring Fig. 13 — Apollo Control Factory-Installed in Typical Unit Factory Wiring NOTE: Connect W2 when 2-stage accessory electric heaters are used. Fig. 11 — Low-Voltage Connections 10 Assembly: 1. Determine quantity of ventilation required for building. Record amount for use in Step 8. 2. Remove filter access panel by raising panel and swinging panel outward. Panel is now disengaged from track and can be removed. No tools are required to remove the filter access panel. Remove outdoor-air opening panel. Save panels and screws. See Fig. 14. 3. Separate hood and screen from basepan by removing the screws and brackets securing them. Save all screws and discard brackets. 4. Replace outdoor air opening panel. 5. Place hood on front of outdoor air opening panel. See Fig. 15 for hood details. Secure top of hood with the 6 screws removed in Step 3. See Fig. 16. 6. Remove and save 8 screws (4 on each side) from sides of the manual outdoor-air damper. 7. Align screw holes on hood with screw holes on side of manual outdoor-air damper. See Fig. 15 and 16. Secure hood with 8 screws from Step 6. 8. Adjust minimum position setting of the damper blade by adjusting the manual outdoor-air adjustment screws on the front of the damper blade. See Fig. 14. Slide blade vertically until it is in the appropriate position determined by Fig. 17. Tighten screws. 9. Remove and save screws currently on sides of hood. Insert screen. Secure screen to hood using the screws. See Fig. 16. 10. Replace filter access panel. Ensure filter access panel slides along the tracks and is securely engaged. OPTIONAL DURABLADE ECONOMIZER — The optional economizer hood assembly is packaged and shipped in the filter section. Damper blades and control boards are installed at the factory and the economizer is shipped in the vertical discharge position. FILTER ACCESS PANEL OUTDOOR AIR OPENING PANEL SCREWS (SIDE) MANUAL OUTDOOR-AIR ADJUSTMENT SCREWS DAMPER BLADE Fig. 14 — Damper Panel with Manual Outdoor-Air Damper Installed NOTE: Horizontal discharge block-off plate is shipped with the air hood package. If unit is to be used for vertical discharge application, discard this plate. Assembly 1. Determine if ventilation air is required in building. If so, determine the minimum amount to be supplied by each unit and record quantity of ventilation air needed for use in Step 8. 2. Remove filter access panel by raising panel and swinging panel outward. Panel is now disengaged from track and can be removed. No tools are required to remove filter access panel. Remove outdoor-air opening panel. Save panels and screws. See Fig. 18. Remove optional economizer to allow outdoor-air damper hood package to be removed from filter section. 3. Assemble outdoor-air hood top and side plates as shown in Fig. 19. Install seal strips on hood top and sides. Put aside screen retainer and retainer screw for later assembly. Do not attach hood to unit at this time. 4. On 012 and 014 units, install vertical discharge blockoff plate over duct openings. See Fig. 20. 5. Slide economizer into unit and secure with screws. See Fig. 21. NOTE: Be sure to engage rear economizer flange under tabs in vertical return-air opening. 6. To convert to horizontal discharge application: a. Rotate the economizer 90 degrees until the economizer motor faces the condenser section (see Fig. 22). Fig. 15 — Outdoor-Air Hood Details b. Rotate the barometric relief damper hinge 90 degrees. Barometric relief damper must open vertically to operate properly. c. Install horizontal discharge block-off plate over the opening on the access panel. (Block-off plate MUST be installed before installing hood assembly.) See Fig. 23. 7. Insert economizer plug into economizer harness. Remove tape from barometric relief damper. See Fig. 21. 8. If ventilation air is not required, proceed to Step 9. If ventilation air is required, determine the minimum position setting for required airflow. See Fig. 24. Adjust minimum position setting by adjusting the screws on the position setting bracket. See Fig. 25. Slide bracket until the top screw is in the position determined by Fig. 24. Tighten screws. 11 SCREW HOLES (TOP) HOOD HOOD SCREEN LOCATION (SCREEN NOT SHOWN) Fig. 16 — Damper with Hood Attached Fig. 19 — Outdoor-Air Hood Details Fig. 17 — Position Setting Fig. 20 — Vertical Discharge Block-Off Plate (Sizes 012, 014 only) FILTER ACCESS PANEL 10. Replace outdoor-air opening panel using screws from Step 2. Replace filter access panel. Ensure the filter access panel slides along the tracks and is securely engaged. 11. Fasten hood top and side plate assembly to outdoor-air opening panel with screws provided. 12. Place knob supplied with economizer on OAT. See Fig. 26. Set for 3° F below indoor room thermostat setting. If accessory enthalpy control (EC) is used in place of OAT, see instructions shipped with EC for installation and adjustment. See Fig. 26. 13. Connect OAT per Fig. 27. 14. Slide outdoor-air inlet screen into screen track on hood side plate. While holding screen in place, fasten screen retainer to hood using screws provided. NOTE: Refer to Fig. 28 for Durablade economizer barometric relief damper characteristics. BLOCK-OFF PANEL EVAPORATOR COIL ACCESS PANEL Fig. 18 — Access Panel Location 9. Remove tape from outdoor-air thermostat (OAT). Fasten OAT to inside of hood using screws and speed clips provided. See Fig. 26. Make sure OAT terminals are positioned up. 12 EXAMPLE: Given — Negative Pressure . . . . . . . . . . . . . . . . . . . . . . . . 0.1 in. wg Outdoor Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . 1100 cfm Determine — Setting = 6 in. Fig. 21 — Durablade Economizer Installed in Unit Fig. 24 — Durablade Economizer Damper Minimum Position Setting ECONOMIZER CONTROL BOARD BAROMETRIC RELIEF DAMPER ECONOMIZER MOTOR ECONOMIZER MOUNTING SCREWS 9 8 7 6 Fig. 22 — Horizontal Durablade Economizer Installation (90-Degree Rotation) 5 4 3 2 1 0 Fig. 25 — Minimum Position Damper Setting BLOCK-OFF PLATE Fig. 23 — Horizontal Discharge Block-Off Plate 13 Fig. 27 — Wiring Connections for Outdoor-Air Thermostat Fig. 28 — Durablade Economizer Barometric Relief Damper Characteristics OPTIONAL PARABLADE ECONOMIZER — The optional PARABLADE economizer hood assembly is packaged and shipped in the filter section. Damper blades and control boards are installed at the factory and the economizer is shipped in the vertical discharge position. C SO D TR REV. B 1 9 8 8 1 8 A B S 1 P T MINIMUM 3 POSITION OPEN 5 4 2 P1 T1 TR C 24VAC 2 TR1 1 3 mA MIN. AT 11 VDC B A ENTHALPY CONTROL 3 D CW–SETPOINTS–CCW RUSH AT 24VAC CONTACT RATINGS: 1.5A RUN, 3.5A IN °F CONTACTS SHOWN IN HIGH ENTHALPY OR UNPOWERED STATE OUTDOOR TEMP. % 90 H DAMPER U 70 CLOSED M I 60 DAMPER D OPEN I 30 T Y 10 50 55 60 65 70 75 80 85 REV. NOTE: Horizontal discharge block-off plate is shipped with the air hood package. The PARABLADE economizer can only be used for vertical discharge applications. Discard this plate. Assembly 1. Determine if ventilation air is required in building. If so, determine the minimum amount to be supplied by each unit and record quantity of ventilation air needed for use in Step 7. 2. Remove filter access panel by raising panel and swinging panel outward. Panel is now disengaged from track and can be removed. No tools are required to remove filter access panel. Remove outdoor-air opening panel. See Fig. 18. Save panels and screws. Remove optional economizer so the outdoor-air damper hood package can be removed from the filter section. 3. Assemble outdoor-air hood top and side plates as shown in Fig. 19. Install seal strips on hood top and sides. Put aside screen retainer and retainer screw for later assembly. Do not attach hood to unit at this time. 4. On 012 and 014 units, install vertical discharge blockoff plate over duct openings. See Fig. 20. 5. Slide economizer into unit and secure with screws. See Fig. 29. NOTE: Be sure to engage rear economizer flange under tabs in vertical return-air opening. 97-3672 NOTE: Outdoor-Air Thermostat or Enthalpy Control can be attached to either side inside hood. Fig. 26 — Outdoor-Air Thermostat/ Enthalpy Control Installation 14 6. Insert economizer plug into economizer harness. Remove tape from barometric relief damper. See Fig. 29. 7. If ventilation air is not required, proceed to Step 8. If ventilation air is required, perform the following: a. Make sure the factory-installed jumper is in place across terminals P and P1 on the economizer logic module. T and T1 should be disconnected during adjustment. b. The 2 potentiometers with slots for adjustment are located on the face of the economizer logic module. Turn the lower potentiometer fully clockwise. The dampers should be fully closed. Turn the potentiometer gradually counterclockwise until the desired position is reached. c. Connect T and T1 to the 24 v power supply. d. After installation is complete, calculate the minimum airflow across the economizer. To calculate the minimum airflow, the following data is needed: total cfm (cfm3), temperature of the total cfm (T3), temperature of the return air (T1), and temperature of the entering outside air (T2). Cfm1 is the return air cfm, which will be the minimum airflow. Insert the data into the following equations: T1 (cfm1) + T2 (cfm2) = T3 cfm3 cfm2 = (cfm3 – cfm1) Therefore: T1 (cfm1) + T2 (cfm3 – cfm1) = T3 cfm3 ECONOMIZER CONTROL MODULE/DAMPER ACTUATOR WIRING HARNESS ENTHALPY SENSOR BAROMETRIC RELIEF DAMPER Fig. 29 — PARABLADE Economizer Installed in Unit POINT CONTROL CONTROL F (C) APPROX. CURVE AT 50% RH A 73 [23] B 70 [21] C 57 [19] D 53 [17] Use this equation to determine cfm1, which is the minimum airflow across the economizer. (T3 – T2) cfm3 cfm1 = (T1 – T2) If cfm1 does not match the desired minimum airflow from Step 1, readjust the minimum position setting screw. 8. Determine the enthalpy changeover set point from Fig. 30. The enthalpy changeover set point should be set to return the outdoor air damper to the minimum position when enthalpy rises above the set point. The settings are A, B, C, and D. Set the enthalpy changeover per the setting in Fig. 30. 9. Replace outdoor-air opening panel using screws from Step 2. Replace filter access panel. Ensure the filter access panel slides along the tracks and is securely engaged. See Fig. 31. 10. Fasten hood top and side plate assembly (Fig. 32) to outdoor-air opening panel with screws provided. 11. Slide outdoor-air inlet screen into screen track on hood side plate. While holding screen in place, fasten screen retainer to hood using screws provided. See Fig. 33. 12. See Fig. 34 for barometric relief damper characteristics. Fig. 30 — Enthalpy Settings for PARABLADE Economizer 15 Fig. 31 — Panels Reinstalled On Unit Fig. 34 — PARABLADE Economizer Barometric Relief Damper Characteristics To change fan speed: 1. Shut off unit power supply. 2. Loosen belt by loosening fan motor mounting plate nuts (see Fig. 35 and 36). 3. Loosen movable pulley flange setscrew (see Fig. 37). 4. Screw movable flange toward fixed flange to increase speed and away from fixed flange to decrease speed. Increasing fan speed increases load on motor. Do not exceed maximum speed specified in Table 1. 5. Set movable flange at nearest keyway of pulley hub and tighten setscrew (see Table 1 for speed change for each full turn of pulley flange). Fig. 32 — Outdoor-Air Hood Installed On Unit To align fan and motor pulleys: 1. Loosen fan pulley setscrews. 2. Slide fan pulley along fan shaft. 3. Make angular alignment by loosening motor from mounting plate. To adjust belt tension (see Fig. 35 and 36). 1. Loosen fan motor mounting nuts. 2. Units 008, 009 — Slide motor mounting plate away from fan scroll for proper belt tension (1⁄2-in. deflection with one finger) and tighten mounting nuts. See Fig. 35. Units 012, 014 — Slide motor mounting plate downward to tighten belt tension. See Fig. 36. 3. Adjust bolt and nut on mounting plate to secure motor in fixed position. Fig. 33 — Filter Installed On Outdoor Air Hood Step 7 — Adjust Evaporator-Fan Speed — Adjust evaporator-fan speed to meet jobsite conditions. Table 3 shows fan rpm motor pulley settings, Table 4 shows motor efficiencies, and Table 5 gives accessory static pressure drops. See Table 6 for additional information on motor performance. Refer to Tables, 7-14 to determine fan speed settings. Fan motor pulleys are factory set for speed shown in Table 1. 16 Table 3 — Fan Rpm at Motor Pulley Settings* UNIT 50TJ 0 840 935 935 935 1085 1080 1260 008† 008** 009† 012† 012†† 014† 014†† ⁄ 815 910 910 910 1060 1060 1220 12 1 790 885 885 885 1035 1035 1185 MOTOR PULLEY TURNS 2 21⁄2 3 740 715 690 835 810 785 835 810 785 835 810 785 985 960 935 990 970 950 1130 1100 1075 1 1 ⁄2 765 860 860 860 1010 1015 1155 OPEN 3 1 ⁄2 665 760 760 760 910 925 1045 4 640 735 735 735 885 905 1015 4 1 ⁄2 615 710 710 710 860 880 990 5 590 685 685 685 835 860 960 51⁄2 — — — — — — 930 6 — — — — — — 900 *Approximate rpm shown. †Indicates standard motor and drive. **Indicates alternate drive. ††Indicates alternate motor and drive. Table 4 — Evaporator-Fan Motor Efficiency MOTOR 50TJ008-012 50TJ014 EFFICIENCY (%) 80 87 NOTE: Convert bhp to watts using the following formula: bhp (746) watts = motor efficiency Table 5 — Accessory Static Pressure Drop (in. wg) 50TJ008-014 COMPONENT 1 Heater Module 2 Heater Modules Durablade Economizer PARABLADE Economizer 2200 .020 .030 .020 .21 2500 .030 .050 .020 .25 3000 .050 .070 .030 .35 3500 .065 .090 .040 .49 CFM 4000 .080 .120 .050 .61 4500 .100 .140 .060 — 5000 .120 .160 .070 — 5500 .140 .190 .080 — 6000 .155 .210 .090 — Table 6 — Motor Data UNIT 50TJ EVAPORATORFAN MOTOR MAXIMUM CONTINUOUS BHP* MAXIMUM OPERATING WATTS* 008 Std 2.40 2120 009 Std 2.40 2120 Std 2.40 2120 Alt 2.90 2615 Std 4.20 3775 Alt 5.25 4400 012 014 UNIT VOLTAGE MAXIMUM AMP DRAW 208/230 460 575 208/230 460 575 208/230 460 575 208/230 460 575 208/230 460 575 208/230 460 575 6.1 2.7 2.7 6.1 2.7 2.7 6.1 2.7 2.7 7.9 3.6 3.6 11.1 5.0 5.0 15.0 7.4 7.4 LEGEND Bhp — Brake Horsepower *Extensive motor and electrical testing on these units ensures that the full horsepower and watts range of the motors can be utilized with confidence. Using your fan motors up to the ratings shown in this table will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. 17 Table 7 — Fan Performance, 50TJ008 — Vertical Discharge Units AIRFLOW (Cfm) 0.2 Rpm 511 518 534 549 557 565 581 597 613 629 646 662 679 696 712 729 746 755 2250 2300 2400 2500 2550 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750 AIRFLOW (Cfm) 2250 2300 2400 2500 2550 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750 Bhp 0.52 0.55 0.61 0.67 0.71 0.74 0.81 0.89 0.97 1.06 1.15 1.25 1.35 1.46 1.57 1.69 1.85 1.89 1.4 Rpm 884 885 892 902 908 913 924 935 946 957 968 980 991 1003 1014 — — — EXTERNAL STATIC PRESSURE (in. wg) 0.6 0.8 0.4 Bhp 1.97 2.00 2.08 2.18 2.24 2.29 2.40 2.52 2.65 2.78 2.91 3.04 3.18 3.32 3.48 — — — Rpm 592 599 613 627 633 639 652 665 679 694 709 724 740 756 771 787 803 811 Bhp 0.74 0.77 0.84 0.90 0.94 0.97 1.04 1.12 1.20 1.29 1.39 1.50 1.61 1.73 1.85 1.98 2.12 2.20 Rpm 659 665 677 690 697 703 717 733 745 759 772 785 798 811 824 839 854 862 Bhp 0.95 0.98 1.06 1.14 1.18 1.22 1.31 1.40 1.50 1.59 1.70 1.80 1.91 2.02 2.14 2.21 2.42 2.49 EXTERNAL STATIC PRESSURE (in. wg) 1.6 1.8 Rpm Bhp Rpm Bhp Rpm 937 2.33 947 2.66 1022 939 2.36 979 2.69 1025 944 2.40 987 2.76 1039 949 2.48 1002 2.84 1041 953 2.53 1003 2.87 1045 957 2.58 1004 2.91 1050 967 2.70 1010 3.01 1056 978 2.62 1019 3.13 1061 989 2.96 1030 3.27 — 1000 3.09 1040 3.41 — 1011 3.24 — — — 1022 3.38 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — LEGEND Bhp — Brake Horsepower Input to Fan NOTES: 1. Boldface indicates a field-supplied drive is required. (See Note 7.) 2. indicates alternate drive is required. 3. indicates field-supplied motor and drive are required. 5. 6. 7. 8. 4. Maximum continuous bhp is 2.40. Extensive motor and electrical testing on these units ensures that the full range of the motor can 18 Rpm 722 727 738 750 756 761 773 786 799 812 825 840 854 868 881 894 907 914 Bhp 1.19 1.22 1.30 1.38 1.42 1.46 1.55 1.66 1.76 1.88 1.99 2.11 2.24 2.37 2.50 2.64 2.78 2.85 2.0 Bhp 3.10 3.12 3.20 3.25 3.28 3.31 3.37 3.47 — — — — — — — — — — Watts 2710 2727 2791 2831 2854 2878 2925 3002 — — — — — — — — — — 1.0 Rpm 778 783 794 805 811 816 827 839 850 862 875 887 900 914 928 942 956 963 1.2 Bhp 1.43 1.47 1.55 1.64 1.69 1.74 1.83 1.93 2.04 2.15 2.28 2.41 2.54 2.69 2.84 2.99 3.15 3.23 Rpm 829 834 844 855 861 866 878 889 900 911 923 934 946 959 971 984 997 — Bhp 1.68 1.72 1.81 1.91 1.96 2.01 2.12 2.23 2.34 2.46 2.58 2.71 2.85 3.00 3.16 3.22 3.49 — be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. Values include losses for filters, unit casing, and wet coils. Use of a field-supplied motor may affect wire sizing. Contact Carrier representative to verify. Standard motor drive range: 590 to 840 rpm. Alternate motor drive range: 685 to 935 rpm. All other rpms require field-supplied drive. Interpolation is permissible. Do not extrapolate. Table 8 — Fan Performance, 50TJ009 — Vertical Discharge Units AIRFLOW (Cfm) 0.2 Rpm 557 565 581 597 613 629 646 662 679 696 712 729 746 755 763 780 796 813 830 839 2550 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750 3800 3900 4000 4100 4200 4250 AIRFLOW (Cfm) 2550 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750 3800 3900 4000 4100 4200 4250 Bhp 0.71 0.74 0.81 0.89 0.97 1.06 1.15 1.25 1.35 1.46 1.57 1.69 1.82 1.89 1.95 2.09 2.23 2.39 2.55 2.63 Rpm 633 639 652 665 679 694 709 724 740 756 771 787 803 811 819 835 851 867 883 892 Bhp 2.24 2.29 2.40 2.52 2.65 2.78 2.91 3.04 3.18 3.52 3.48 — — — — — — — — — EXTERNAL 1.6 Rpm 953 957 967 978 989 1000 1011 1022 — — — — — — — — — — — — 1.4 Rpm 908 913 924 935 946 957 968 980 991 1003 1014 — — — — — — — — — EXTERNAL STATIC PRESSURE (in. wg) 0.6 0.8 0.4 Bhp 0.94 0.97 1.04 1.12 1.20 1.29 1.39 1.50 1.61 1.73 1.85 1.98 2.12 2.20 2.27 2.42 2.56 2.74 2.91 3.00 Rpm 697 703 717 733 745 759 772 785 798 811 824 839 854 862 869 884 900 915 931 939 Bhp 1.18 1.22 1.31 1.40 1.50 1.59 1.70 1.80 1.91 2.02 2.14 2.27 2.42 2.49 2.56 2.72 2.89 3.06 3.24 3.34 STATIC PRESSURE 1.8 Bhp Rpm 2.53 1003 2.58 1004 2.70 1010 2.62 1019 2.96 1030 3.09 1040 3.24 — 3.38 — — — — — — — — — — — — — — — — — — — — — — — — — Bhp 1.42 1.46 1.55 1.66 1.76 1.88 1.99 2.11 2.24 2.37 2.50 2.64 2.78 2.85 2.92 3.07 3.23 3.40 — — 1.0 Rpm 811 816 827 839 850 862 875 887 900 914 928 942 956 963 970 983 — — — — 1.2 Bhp 1.69 1.74 1.83 1.93 2.04 2.15 2.28 2.41 2.54 2.69 2.84 2.99 3.15 3.23 3.31 3.48 — — — — Rpm 861 866 878 889 900 911 923 934 946 959 971 984 997 — — — — — — — Bhp 1.96 2.01 2.12 2.23 2.34 2.46 2.58 2.71 2.85 3.00 3.16 3.32 3.49 — — — — — — — (in. wg) 2.0 Bhp 2.87 2.91 3.01 3.13 3.27 3.41 — — — — — — — — — — — — — — LEGEND Bhp — Brake Horsepower Input to Fan NOTES: 1. Boldface indicates a field-supplied drive is required. (See Note 6.) 2. Rpm 756 761 773 786 799 812 825 840 854 868 881 894 907 914 920 933 946 960 — — 4. 5. 6. indicates field-supplied motor and drive are required. 7. 3. Maximum continuous bhp is 2.40. Extensive motor and electrical testing on these units ensures that the full range of the motor can 19 Rpm 1045 1050 1056 1061 — — — — — — — — — — — — — — — — Bhp 3.28 3.31 3.37 3.41 — — — — — — — — — — — — — — — — be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. Values include losses for filters, unit casing, and wet coils. Use of a field-supplied motor may affect wire sizing. Contact Carrier representative to verify. Standard motor drive range: 685 to 935 rpm. All other rpms require field-supplied drive. Interpolation is permissible. Do not extrapolate. Table 9 — Fan Performance, 50TJ012 — Vertical Discharge Units AIRFLOW (Cfm) 0.2 Rpm 532 544 557 570 583 596 609 622 635 649 662 675 689 702 715 729 742 756 770 783 797 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 AIRFLOW (Cfm) 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 Bhp 0.64 0.70 0.75 0.81 0.88 0.94 1.01 1.09 1.16 1.25 1.33 1.42 1.52 1.61 1.72 1.83 1.94 2.06 2.18 2.31 2.44 Rpm 605 616 628 639 651 663 674 686 698 713 722 734 746 759 772 785 797 810 823 836 849 Bhp 1.60 1.68 1.77 1.86 1.97 2.07 2.18 2.28 2.41 2.51 2.63 2.77 2.91 3.05 3.19 3.33 3.48 3.58 3.75 3.92 4.11 EXTERNAL 1.6 Rpm 926 933 934 940 947 956 966 976 985 994 1003 1011 1021 1031 1042 1051 1060 1070 1080 1089 1099 1.4 Rpm 874 880 888 897 907 916 926 934 943 952 962 973 983 994 1004 1015 1025 1037 1048 1060 1072 EXTERNAL STATIC PRESSURE (in. wg) 0.6 0.8 0.4 Bhp 0.81 0.86 0.93 0.99 1.06 1.14 1.22 1.30 1.39 1.48 1.57 1.67 1.77 1.88 1.99 2.10 2.22 2.34 2.46 2.60 2.73 Rpm 670 680 690 700 711 721 732 744 755 767 778 790 801 813 825 837 848 860 872 884 897 Bhp 0.97 1.03 1.10 1.18 1.25 1.33 1.42 1.50 1.59 1.68 1.78 1.89 1.99 2.11 2.22 2.35 2.48 2.61 2.75 2.89 3.04 STATIC PRESSURE 1.8 Bhp Rpm 1.82 974 1.87 983 1.94 988 2.03 989 2.14 991 2.25 997 2.41 1004 2.48 1013 2.60 1023 2.72 1032 2.84 1042 2.97 1051 3.11 1060 3.25 1068 3.41 1080 3.45 1090 3.61 1100 3.84 1111 3.95 1121 4.13 1132 4.32 1144 Rpm 725 735 746 757 767 777 787 797 808 818 829 839 851 862 873 885 896 908 919 931 943 Bhp 1.12 1.20 1.28 1.36 1.44 1.52 1.61 1.70 1.80 1.90 2.01 2.12 2.23 2.34 2.46 2.59 2.72 2.86 3.00 3.14 3.30 1.0 Rpm 778 787 796 805 815 826 836 847 857 867 878 888 898 908 919 929 940 951 963 974 984 1.2 Bhp 1.28 1.36 1.44 1.52 1.61 1.71 1.80 1.91 2.01 2.11 2.22 2.33 2.45 2.58 2.71 2.85 2.98 3.12 3.27 3.41 3.44 Rpm 825 835 844 854 863 871 880 890 901 912 922 933 943 953 963 973 984 994 1003 1013 1023 Bhp 1.43 1.52 1.61 1.70 1.79 1.88 1.98 2.09 2.20 2.32 2.44 2.56 2.69 2.81 2.94 3.08 3.22 3.38 3.43 3.59 3.75 (in. wg) 2.0 Bhp 2.11 2.16 2.18 2.24 2.32 2.43 2.54 2.66 2.79 2.92 3.06 3.20 3.34 3.48 3.63 3.75 3.92 4.10 4.28 4.48 4.67 LEGEND Bhp — Brake Horsepower Input to Fan NOTES: 1. Boldface indicates a field-supplied or alternate (as appropriate) drive is required. (See Note 7.) 5. 6. 2. indicates alternate motor and drive are required. 7. 3. indicates field-supplied motor and drive are required. 8. 4. Maximum continuous bhp is 2.40 with standard motor and 2.90 with alternate motor. Extensive motor and electrical testing on 20 Rpm 1012 1017 1025 1032 1038 1043 1045 1051 1059 1068 1078 1087 1090 1097 1105 1112 1119 1126 1133 1140 1147 Bhp 2.41 2.44 2.47 2.53 2.57 2.64 2.74 2.85 2.98 3.12 3.26 3.41 3.51 3.70 3.91 4.12 4.35 4.59 4.85 5.12 5.40 these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. Values include losses for filters, unit casing, and wet coils. Use of a field-supplied motor may affect wire sizing. Contact Carrier representative to verify. Standard motor drive range: 685 to 935 rpm. Alternate motor drive range: 835 to 1085 rpm. All other rpms require field-supplied drive. Interpolation is permissible. Do not extrapolate. Table 10 — Fan Performance, 50TJ014 — Vertical Discharge Units AIRFLOW (Cfm) 0.2 Rpm 654 668 683 697 711 726 741 755 770 784 799 814 829 843 858 873 888 903 918 933 948 963 978 993 1008 1023 1038 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 6100 6200 6300 AIRFLOW (Cfm) 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 6100 6200 6300 Bhp 1.12 1.20 1.28 1.37 1.46 1.56 1.66 1.77 1.89 2.00 2.13 2.25 2.39 2.52 2.67 2.82 2.97 3.13 3.30 3.47 3.65 3.83 4.00 4.22 4.42 4.63 4.85 Rpm 714 727 741 754 767 780 794 808 821 835 849 863 877 892 906 920 934 949 963 978 992 1006 1021 1035 1050 1065 1079 Bhp 2.27 2.38 2.50 2.62 2.74 2.86 2.97 3.10 3.23 3.37 3.52 3.69 3.87 4.05 4.23 4.42 4.62 4.82 5.03 5.24 5.46 — — — — — — EXTERNAL 1.6 Rpm 991 1001 1010 1020 1029 1039 1049 1059 1070 1081 1092 1103 1114 1126 1137 1149 1161 1173 1185 1197 1209 — — — — — — 1.4 Rpm 950 959 969 979 989 1000 1011 1022 1033 1044 1056 1057 1079 1091 1103 1115 1127 1139 1152 1165 1178 — — — — — — EXTERNAL STATIC PRESSURE (in. wg) 0.6 0.8 0.4 Bhp 1.31 1.40 1.49 1.59 1.69 1.80 1.91 2.03 2.15 2.27 2.40 2.53 2.67 2.81 2.95 3.10 3.26 3.43 3.59 3.77 3.95 4.14 4.34 4.54 4.75 4.96 5.19 Rpm 767 780 793 806 819 832 845 858 871 884 897 910 923 937 950 963 977 991 1004 1018 1032 1046 1060 1074 1089 1103 1079 Bhp 1.50 1.60 1.70 1.80 1.90 2.01 2.12 2.24 2.37 2.49 2.63 2.77 2.92 3.08 3.24 3.40 3.57 3.75 3.92 4.11 4.30 4.50 4.69 4.91 5.10 5.32 5.54 STATIC PRESSURE 1.8 Bhp Rpm 2.47 1030 2.58 1040 2.70 1049 2.83 1059 2.96 1068 3.10 1077 3.23 1087 3.37 1097 3.51 1107 3.64 1117 3.78 1127 3.93 1138 4.09 1149 4.25 1160 4.45 1171 4.65 1182 4.85 1194 5.06 1205 5.27 1217 5.49 1229 5.72 — — — — — — — — — — — — — Rpm 815 827 839 851 864 877 889 902 915 928 941 954 967 980 993 1006 1019 1032 1045 1058 1072 1085 1098 1112 1125 1139 — Bhp 1.67 1.77 1.88 1.99 2.10 2.22 2.35 2.48 2.61 2.75 2.88 3.02 3.17 3.32 3.48 3.65 3.82 4.00 4.18 4.38 4.58 4.79 5.01 5.23 5.45 5.68 — 1.0 Rpm 861 873 884 895 907 919 931 943 955 968 981 993 1006 1019 1032 1045 1058 1071 1084 1097 1110 1123 1136 1149 1162 — — 1.2 Bhp 1.85 1.95 2.05 2.16 2.28 2.41 2.54 2.68 2.82 2.96 3.11 3.27 3.43 3.60 3.76 3.93 4.11 4.29 4.47 4.66 4.86 5.07 5.28 5.50 5.73 — — Rpm 906 916 927 938 949 960 971 983 995 1006 1018 1030 1043 1055 1068 1081 1094 1106 1119 1132 1145 1158 1171 — — — — Bhp 2.08 2.18 2.28 2.38 2.49 2.60 2.72 2.86 3.01 3.17 3.32 3.48 3.65 3.82 4.00 4.19 4.38 4.57 4.77 4.97 5.18 5.39 5.60 — — — — (in. wg) 2.0 Bhp 2.65 2.78 2.91 3.04 3.18 3.31 3.46 3.61 3.76 3.92 4.07 4.23 4.37 4.53 4.70 4.91 5.07 5.29 5.51 5.74 — — — — — — — LEGEND Bhp — Brake Horsepower Input to Fan NOTES: 1. Boldface indicates a field-supplied or alternate (as appropriate) drive is required. (See Note 7.) 5. 6. 2. indicates alternate motor and drive are required. 7. 3 indicates field-supplied motor and drive are required. 8. 4. Maximum continuous bhp is 4.20 with standard motor and 5.25 with alternate motor. Extensive motor and electrical testing on 21 Rpm 1064 1075 1085 1095 1105 1114 1124 1133 1143 1152 1162 1172 1182 1193 1204 1215 1226 1237 1248 — — — — — — — — Bhp 2.82 2.96 3.11 3.25 3.39 3.54 3.69 3.84 4.00 4.17 4.33 4.50 4.68 4.85 5.01 5.18 5.36 5.55 5.75 — — — — — — — — these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. Values include losses for filters, unit casing, and wet coils. Use of a field-supplied motor may affect wire sizing. Contact Carrier representative to verify. Standard motor drive range: 860 to 1080 rpm. Alternate motor drive range: 900 to 1260 rpm. All other rpms require field-supplied drive. Interpolation is permissible. Do not extrapolate. Table 11 — Fan Performance, 50TJ008 — Horizontal Discharge Units AIRFLOW (Cfm) 0.2 Rpm 465 471 482 494 501 507 520 533 546 559 572 585 598 610 623 636 649 655 2250 2300 2400 2500 2550 2660 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750 AIRFLOW (Cfm) 2250 2300 2400 2500 2550 2660 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750 0.4 Bhp 0.43 0.45 0.50 0.54 0.57 0.59 0.65 0.71 0.77 0.83 0.90 0.96 1.03 1.10 1.17 1.25 1.33 1.37 Rpm 554 559 569 581 587 592 604 615 626 637 648 660 671 682 694 707 720 727 1.2 Rpm 810 816 824 832 836 839 846 855 863 872 882 892 902 912 921 930 940 945 Bhp 0.64 0.66 0.71 0.76 0.79 0.82 0.89 0.95 1.02 1.09 1.17 1.24 1.32 1.41 1.50 1.60 1.71 1.77 1.4 Bhp 1.62 1.65 1.72 1.79 1.83 1.87 1.95 2.04 2.13 2.22 2.33 2.45 2.57 2.69 2.82 2.95 3.07 3.14 Rpm 850 859 872 882 887 891 898 906 913 921 930 939 948 958 968 978 — — EXTERNAL STATIC PRESSURE (in. wg) 0.6 Rpm 630 635 645 654 659 663 672 683 693 704 715 727 739 750 761 772 783 789 Bhp 0.86 0.89 0.95 1.01 1.05 1.08 1.14 1.20 1.27 1.35 1.43 1.52 1.62 1.72 1.82 1.93 2.03 2.09 0.8 Rpm 695 699 708 717 722 727 737 747 756 765 775 785 795 806 817 828 840 846 EXTERNAL STATIC PRESSURE (in. wg) 1.6 1.8 Bhp Rpm Bhp Rpm 1.91 873 2.20 883 1.94 888 2.24 903 2.01 909 2.32 931 2.09 925 2.40 955 2.13 931 2.45 964 2.17 936 2.49 973 2.26 946 2.58 987 2.35 954 2.67 997 2.44 961 2.77 1006 2.54 969 2.88 1014 2.65 976 2.99 1021 2.76 984 3.10 — 2.88 993 3.21 — 3.01 1002 3.34 — 3.15 — — — 3.29 — — — — — — — — — — — LEGEND Bhp — Brake Horsepower Input to Fan NOTES: 1. Boldface indicates a field-supplied drive is required. (See Note 7.) 2. indicates alternate drive is required. 3. indicates field-supplied motor and drive are required. 5. 6. 7. 8. 4. Maximum continuous bhp is 2.40. Extensive motor and electrical testing on these units ensures that the full range of the motor can 22 1.0 Bhp 1.09 1.12 1.18 1.25 1.29 1.32 1.40 1.49 1.57 1.66 1.74 1.83 1.91 2.01 2.11 2.23 2.35 2.42 Rpm 757 760 768 776 780 784 793 802 813 823 832 841 851 860 870 880 890 896 Bhp 2.50 2.55 2.64 2.72 2.77 2.82 2.91 3.01 3.12 3.22 3.34 — — — — — — — Rpm 895 911 935 972 986 999 1019 1034 — — — — — — — — — — Bhp 1.34 1.37 1.44 1.51 1.55 1.58 1.66 1.75 1.84 1.94 2.05 2.15 2.26 2.36 2.47 2.57 2.69 2.75 2.0 Bhp 2.78 2.85 2.96 3.06 3.11 3.16 3.26 3.36 — — — — — — — — — — be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. Values include losses for filters, unit casing, and wet coils. Use of a field-supplied motor may affect wire sizing. Contact Carrier representative to verify. Standard motor drive range: 590 to 840 rpm. Alternate motor drive range: 685 to 935 rpm. All other rpms require field-supplied drive. Interpolation is permissible. Do not extrapolate. Table 12 — Fan Performance, 50TJ009 — Horizontal Discharge Units AIRFLOW (Cfm) 0.2 Rpm 501 507 520 533 546 559 572 585 598 610 623 636 649 655 661 674 687 699 712 719 2550 2660 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750 3800 3900 4000 4100 4200 4250 AIRFLOW (Cfm) 2550 2660 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750 3800 3900 4000 4100 4200 4250 0.4 Bhp 0.57 0.59 0.65 0.71 0.77 0.83 0.90 0.96 1.03 1.10 1.17 1.25 1.33 1.37 1.41 1.49 1.57 1.60 1.75 1.80 Rpm 587 592 604 615 626 637 648 660 671 682 694 707 720 727 733 746 759 772 785 792 1.2 Rpm 836 839 846 855 863 872 882 892 902 912 921 930 940 945 949 959 — — — — Bhp 0.79 0.82 0.89 0.95 1.02 1.09 1.17 1.24 1.32 1.41 1.50 1.60 1.71 1.77 1.82 1.93 2.05 2.17 2.30 2.37 1.4 Bhp 1.83 1.87 1.95 2.04 2.13 2.22 2.33 2.45 2.57 2.69 2.82 2.95 3.07 3.14 3.20 3.33 — — — — Rpm 887 891 898 906 913 921 930 939 948 958 968 978 — — — — — — — — EXTERNAL STATIC PRESSURE (in. wg) 0.6 Rpm 659 663 672 683 693 704 715 727 739 750 761 772 783 789 795 806 817 828 840 846 0.8 Rpm 722 727 737 747 756 765 775 785 795 806 817 828 840 846 852 863 874 885 897 903 EXTERNAL STATIC PRESSURE (in. wg) 1.6 1.8 Bhp Rpm Bhp Rpm 2.13 931 2.45 964 2.17 936 2.49 973 2.26 946 2.58 987 2.35 954 2.67 997 2.44 961 2.77 1006 2.54 969 2.88 1014 2.65 976 2.99 1021 2.76 984 3.10 — 2.88 993 3.21 — 3.01 1002 3.34 — 3.15 — — — 3.29 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — LEGEND Bhp — Brake Horsepower Input to Fan NOTES: 1. Boldface indicates a field-supplied drive is required. (See Note 6.) 2. Bhp 1.05 1.08 1.14 1.20 1.27 1.35 1.43 1.52 1.62 1.72 1.82 1.93 2.03 2.09 2.15 2.26 2.38 2.50 2.64 2.71 4. 5. 6. indicates field-supplied motor and drive are required. 7. 3. Maximum continuous bhp is 2.40. Extensive motor and electrical testing on these units ensures that the full range of the motor can 23 1.0 Bhp 1.29 1.32 1.40 1.49 1.57 1.66 1.74 1.83 1.91 2.01 2.11 2.23 2.35 2.42 2.48 2.61 2.75 2.88 3.03 3.10 Rpm 780 784 793 802 813 823 832 841 851 860 870 880 890 896 901 912 923 935 947 — Bhp 2.77 2.82 2.91 3.01 3.12 3.22 3.34 — — — — — — — — — — — — — Rpm 986 999 1019 1034 — — — — — — — — — — — — — — — — Bhp 1.55 1.58 1.66 1.75 1.84 1.94 2.05 2.15 2.26 2.36 2.47 2.57 2.69 2.75 2.80 2.93 3.08 3.23 3.39 — 2.0 Bhp 3.11 3.16 3.26 3.36 — — — — — — — — — — — — — — — — be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. Values include losses for filters, unit casing, and wet coils. Use of a field-supplied motor may affect wire sizing. Contact Carrier representative to verify. Standard motor drive range: 685 to 935 rpm. All other rpms require field-supplied drive. Interpolation is permissible. Do not extrapolate. Table 13 — Fan Performance, 50TJ012 — Horizontal Discharge Units AIRFLOW (Cfm) 0.2 Rpm 484 495 505 516 527 537 548 560 571 582 593 605 616 628 639 651 662 674 686 698 710 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 AIRFLOW (Cfm) 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 0.4 Bhp 0.55 0.61 0.66 0.72 0.78 0.85 0.92 1.00 1.08 1.16 1.25 1.35 1.45 1.56 1.67 1.78 1.91 2.03 2.17 2.31 2.45 Rpm 560 570 579 589 599 609 619 629 639 649 659 670 680 690 701 712 722 733 744 755 766 1.2 Rpm 800 805 812 819 827 833 840 847 856 865 875 883 889 896 903 912 921 930 938 946 954 Bhp 0.70 0.76 0.81 0.87 0.93 0.99 1.05 1.12 1.19 1.27 1.35 1.44 1.53 1.63 1.73 1.84 1.95 2.07 2.20 2.33 2.47 1.4 Bhp 1.38 1.44 1.51 1.59 1.67 1.75 1.83 1.92 2.02 2.12 2.22 2.32 2.41 2.51 2.62 2.74 2.87 3.00 3.14 3.27 3.39 Rpm 850 857 862 867 873 880 888 895 901 908 915 924 934 943 951 958 965 972 980 990 998 EXTERNAL STATIC PRESSURE (in. wg) 0.6 Rpm 631 638 646 655 664 672 680 688 698 708 717 727 737 747 757 767 777 787 797 808 818 Bhp 0.87 0.92 0.98 1.05 1.11 1.18 1.24 1.31 1.39 1.47 1.56 1.65 1.74 1.83 1.92 2.02 2.13 2.24 2.36 2.48 2.61 0.8 Rpm 690 699 708 717 724 731 738 747 756 764 773 781 789 798 807 817 827 836 846 856 866 EXTERNAL STATIC PRESSURE (in. wg) 1.6 1.8 Bhp Rpm Bhp Rpm 1.52 879 1.38 925 1.63 896 1.66 935 1.71 908 1.85 944 1.78 915 1.98 952 1.85 920 2.07 963 1.94 926 2.15 970 2.04 931 2.23 976 2.13 938 2.33 981 2.23 945 2.44 986 2.32 953 2.55 993 2.42 960 2.65 1000 2.54 966 2.76 1008 2.65 972 2.87 1015 2.77 980 2.99 1021 2.89 990 3.12 1028 3.00 999 3.26 1035 3.11 1008 3.39 1041 3.23 1017 3.45 1048 3.37 1025 3.55 1055 3.51 1034 3.71 1062 3.62 1042 3.85 1068 LEGEND Bhp — Brake Horsepower Input to Fan NOTES: 1. Boldface indicates a field-supplied or alternate (as appropriate) drive is required. (See Note 7.) 5. 6. 2. indicates an alternate motor and drive are required. 7. 3. indicates field-supplied motor and drive are required. 8. 4. Maximum continuous bhp is 2.40 with standard motor and 2.90 with alternate motor. Extensive motor and electrical testing on 24 1.0 Bhp 1.03 1.10 1.16 1.23 1.30 1.36 1.43 1.51 1.60 1.69 1.78 1.86 1.95 2.05 2.16 2.27 2.38 2.50 2.62 2.73 2.86 Rpm 747 755 761 767 775 784 794 802 810 816 823 832 841 849 858 866 874 882 891 900 910 Bhp 1.81 1.93 2.01 2.11 2.21 2.41 2.47 2.56 2.65 2.75 2.87 2.99 3.12 3.23 3.36 3.51 3.68 3.80 3.85 3.98 4.08 Rpm 964 975 984 993 1001 1007 1017 1024 1029 1034 1039 1046 1053 1061 1068 1074 1081 1088 1095 1101 1108 Bhp 1.20 1.27 1.34 1.40 1.48 1.56 1.64 1.73 1.81 1.89 1.98 2.08 2.18 2.30 2.41 2.51 2.62 2.73 2.85 2.99 3.12 2.0 Bhp 1.92 1.98 2.09 2.22 2.31 2.46 2.62 2.77 2.89 3.00 3.10 3.21 3.34 3.48 3.61 3.74 3.90 4.13 4.30 4.45 4.59 these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. Values include losses for filters, unit casing, and wet coils. Use of a field-supplied motor may affect wire sizing. Contact Carrier representative to verify. Standard motor drive range: 685 to 935 rpm. Alternate motor drive range: 835 to 1085 rpm. All other rpms require field-supplied drive. Interpolation is permissible. Do not extrapolate. Table 14 — Fan Performance, 50TJ014 — Horizontal Discharge Units AIRFLOW (Cfm) 0.2 Rpm 607 621 636 650 665 680 696 711 727 742 758 773 789 805 821 837 853 869 885 901 917 933 949 965 981 997 1014 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 6100 6200 6300 AIRFLOW (Cfm) 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 6100 6200 6300 0.4 Bhp 0.97 1.05 1.13 1.21 1.30 1.39 1.49 1.60 1.70 1.82 1.94 2.06 2.19 2.32 2.47 2.61 2.76 2.92 3.09 3.26 3.44 3.62 3.81 4.01 4.21 4.42 4.64 Rpm 670 681 693 705 717 728 739 750 762 774 786 799 812 826 840 854 868 882 897 911 926 941 956 972 987 1002 1018 1.2 Rpm 879 889 898 908 917 925 935 945 955 967 980 992 1003 1014 1024 1033 1042 1051 1061 1071 1081 1092 1103 1114 1125 1136 — Bhp 1.18 1.25 1.32 1.40 1.48 1.57 1.66 1.75 1.85 1.96 2.07 2.18 2.30 2.43 2.57 2.71 2.85 3.01 3.17 3.33 3.50 3.68 3.87 4.06 4.26 4.46 4.68 1.4 Bhp 1.95 2.03 2.12 2.21 2.32 2.44 2.56 2.68 2.82 2.96 3.11 3.26 3.41 3.56 3.71 3.84 3.98 4.14 4.30 4.46 4.64 4.84 5.04 5.24 5.45 5.66 — Rpm 927 934 942 950 960 969 979 988 996 1005 1015 1025 1036 1049 1061 1073 1084 1095 1105 1114 1123 1132 1142 1152 1162 — — EXTERNAL STATIC PRESSURE (in. wg) 0.6 Rpm 732 742 751 761 772 783 794 805 817 828 840 852 863 875 887 898 909 920 932 943 956 968 981 995 1008 1022 1036 Bhp 1.37 1.45 1.53 1.61 1.71 1.81 1.91 2.02 2.12 2.23 2.34 2.46 2.57 2.70 2.83 2.96 3.09 3.24 3.38 3.54 3.70 3.87 4.05 4.23 4.42 4.62 4.83 0.8 Rpm 782 795 808 819 830 839 848 857 867 877 888 899 910 921 932 943 955 967 978 990 1002 1013 1025 1037 1042 1058 1070 EXTERNAL STATIC PRESSURE (in. wg) 1.6 1.8 Bhp Rpm Bhp Rpm 2.17 973 2.38 1013 2.26 980 2.48 1022 2.36 987 2.59 1030 2.46 994 2.70 1037 2.55 1001 2.81 1045 2.65 1009 2.92 1051 2.77 1018 3.03 1058 2.89 1028 3.14 1066 3.02 1037 3.25 1074 3.16 1046 3.38 1084 3.30 1056 3.52 1093 3.45 1064 3.67 1103 3.61 1073 3.83 1112 3.79 1083 4.00 1121 3.96 1093 4.17 1129 4.14 1103 4.34 1138 4.31 1115 4.53 1148 4.49 1128 4.74 1158 4.66 1140 4.94 1168 4.81 1152 5.14 1180 4.98 1163 5.34 1193 5.15 1174 5.54 — 5.34 1183 5.72 — 5.53 — — — 5.73 — — — — — — — — — — — LEGEND Bhp — Brake Horsepower Input ot Fan NOTES: 1. Boldface indicates a field-supplied or alternate (as appropriate) drive is required. (See Note 7.) 5. 6. 2. indicates alternate motor and drive are required. 7. 3. indicates field-supplied motor and drive are required. 8. 4. Maximum continuous bhp is 4.20 with standard motor and 5.25 with alternate motor. Extensive motor and electrical testing on 25 1.0 Bhp 1.56 1.66 1.76 1.86 1.96 2.05 2.14 2.24 2.35 2.46 2.59 2.72 2.86 2.99 3.13 3.28 3.42 3.57 3.72 3.87 4.03 4.20 4.37 4.55 4.73 4.91 5.11 Rpm 833 842 851 861 871 883 896 908 919 929 938 947 957 966 976 987 998 1009 1029 1031 1042 1053 1065 1076 1088 1100 1112 Bhp 2.57 2.69 2.81 2.92 3.04 3.17 3.29 3.41 3.54 3.66 3.79 3.92 4.07 4.23 4.40 4.58 4.76 4.95 5.15 5.36 5.59 — — — — — — Rpm 1046 1058 1068 1077 1085 1092 1100 1106 1113 1121 1129 1137 1147 1157 1166 1175 1184 1193 1202 1211 — — — — — — — Bhp 1.73 1.82 1.92 2.02 2.13 2.25 2.38 2.51 2.63 2.75 2.87 2.98 3.11 3.24 3.38 3.53 3.69 3.86 4.03 4.20 4.38 4.56 4.74 4.92 5.10 5.29 5.49 2.0 Bhp 2.73 2.87 3.01 3.14 3.21 3.40 3.53 3.67 3.81 3.95 4.09 4.22 4.36 4.50 4.66 4.82 5.01 5.20 5.40 5.60 — — — — — — — these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. Values include losses for filters, unit casing, and wet coils. Use of a field-supplied motor may affect wire sizing. Contact Carrier representative to verify. Standard motor drive range: 860 to 1080 rpm. Alternate motor drive range: 900 to 1260 rpm. All other rpms require field-supplied drive. Interpolation is permissible. Do not extrapolate. START-UP Unit Preparation — Make sure that unit has been installed in accordance with these installation instructions and applicable codes. Return-Air Filters — Make sure correct filters are installed in unit (see Table 1). Do not operate unit without returnair filters. Outdoor-Air Inlet Screens — Outdoor-air inlet screen(s) must be in place before operating unit. MOTOR MOUNTING PLATE NUTS Compressor Mounting — Compressors are internally spring mounted. Do not loosen or remove compressor holddown bolts. Remove the tie-down bands that hold the compressors together on 50TJ014 units. Internal Wiring — Check all electrical connections in unit control boxes; tighten as required. Fig. 35 — Typical Belt-Drive Motor Mounting for Sizes 008,009 Refrigerant Service Ports — Each refrigerant system has 4 Schrader-type service gage ports: one on the suction line, one on the liquid line, and two on the compressor discharge line. Be sure that caps on the ports are tight. When a controls upgrade package is used, one Schrader valve is located under both the high-pressure switch and the lowpressure switch. Compressor Rotation — On 3-phase scroll compressor units, it is important to be certain compressor is rotating in the proper direction. To determine whether or not compressor is rotating in the proper direction: 1. Connect service gages to suction and discharge pressure fittings. 2. Energize the compressor. 3. The suction pressure should drop and the discharge pressure should rise, as is normal on any start-up. If the suction pressure does not drop and the discharge pressure does not rise to normal levels: 1. Note that the evaporator fan is probably also rotating in the wrong direction. 2. Turn off power to the unit. 3. Reverse any two of the unit power leads. 4. Turn on power to the compressor. Fig. 36 — Typical Belt-Drive Motor Mounting for Sizes 012,014 The suction and discharge pressure levels should now move to their normal start-up levels. NOTE: When the compressor is rotating in the wrong direction, the unit makes an elevated level of noise and does not provide cooling. Cooling — To start unit, turn on main power supply. Set system selector switch at COOL position and fan switch at AUTO. position. Adjust thermostat to a setting below room temperature. Compressor starts on closure of contactor. Check unit charge. Refer to Refrigerant Charge section on page 29. Reset thermostat at a position above room temperature. Compressor will shut off. TO SHUT OFF UNIT — Set system selector switch at OFF position. Resetting thermostat at a position above room temperature shuts unit off temporarily until space temperature exceeds thermostat setting. Fig. 37 — Evaporator-Fan Pulley Adjustment 26 determined by the supply-air temperature. Compressor no. 2 is locked out. When the second stage of cooling is satisfied, the compressor and condenser-fan motor will be deenergized. The damper position will be determined by the supply-air temperature. When the first stage of cooling is satisfied and the indoor (evaporator) fan motor is deenergized, the damper will move to fully closed position. Heating (If Accessory Electric Heater is Installed) — To start unit, turn on main power supply. Set thermostat at HEAT position and a setting above room temperature, and set fan at AUTO. position. First stage of thermostat energizes the first-stage electric heater; second stage energizes second-stage electric heater elements, if installed. Check air supply grille(s) to ensure proper heat supply. If unit does not energize, reset limit switch (located on evaporator-fan scroll) by pressing button located between terminals on the switch. TO SHUT OFF UNIT — Set system selector switch at OFF position. Resetting heating selector lever below room temperature will shut unit off temporarily until space temperature falls below thermostat setting. COOLING, UNITS WITH PARABLADE ECONOMIZER — When the outdoor air is above the enthalpy control setting, and the room thermostat calls for cooling, the compressor contactor no. 1 is energized to start compressor no. 1 and the outdoor (condenser) fan motor. The indoor (evaporator) fan motor is energized and the economizer damper moves to the minimum position. Upon further call for cooling, compressor contactor no. 2 is energized, starting compressor no. 2. After the room thermostat is satisfied the damper will spring return to the fully closed position. When the outdoor air is below the enthalpy control setting and the thermostat calls for cooling, the economizer outdoor air damper is opened proportionally to maintain between 50 and 56 F at the mixed air sensor. If outside air alone cannot satisfy the cooling requirements, economizer cooling is integrated with mechanical cooling and the second compressor is locked out. When the room thermostat is satisfied, the damper will spring return to the fully closed position. HEATING, UNITS WITH ECONOMIZER (If Optional or Accessory Heater is Installed) — When the room thermostat calls for heat through terminal W1, the evaporator-fan contactor and heater contactor no. 1 are energized. On units equipped for 2 stages of heat, when additional heat is needed, heater contactor no. 2 is energized through W2. The evaporatorfan motor is energized 45 seconds after heating begins, and the economizer damper moves to the minimum position. When the thermostat is satisfied, the damper moves to the fully closed position. Safety Relief — A soft solder joint in the suction line at the low-pressure service port provides pressure relief under abnormal temperature and pressure conditions. Ventilation (Continuous Fan) — Set fan and system selector switches at ON and OFF positions, respectively. Evaporator fan operates continuously to provide air circulation. Operating Sequence COOLING, UNITS WITHOUT ECONOMIZER — When thermostat calls for cooling, terminals G and Y1 are energized. The indoor (evaporator) fan contactor (IFC), and compressor contactor no. 1 (C1) are energized and evaporatorfan motor, compressor no. 1, and condenser fan start. The condenser-fan motor runs continuously while unit is cooling. If the thermostat calls for a second stage of cooling by energizing Y2, compressor contactor no. 2 (C2) is energized and compressor no. 2 starts. HEATING, UNITS WITHOUT ECONOMIZER (If Optional or Accessory Heater is Installed) — Upon a call for heating through terminal W1, IFC and heater contactor no. 1 (HC1) are energized. On units equipped for 2 stages of heat, when additional heat is needed HC2 is energized through W2. SERVICE COOLING, UNITS WITH DURABLADE ECONOMIZER — When the outdoor-air temperature is above the OAT (outdoor-air thermostat) setting and the room thermostat calls for cooling, compressor contactor no. 1 is energized to start compressor no. 1 and the condenser-fan motor. The evaporatorfan motor is energized and the economizer damper moves to the minimum position. Upon a further call for cooling, compressor contactor no. 2 will be energized, starting compressor no. 2. After the thermostat is satisfied, the damper moves to the fully closed position. When the outdoor-air temperature is below the OAT setting and the thermostat calls for cooling, the economizer dampers move to the minimum position. If the supply-air temperature is above 57 F, the damper continues to open until it reaches the fully open position or until the supply-air temperature drops below 57 F. When the supply-air temperature falls to between 57 F and 52 F, the damper will remain at an intermediate open position. If the supply-air temperature falls below 52 F, the damper will modulate closed until it reaches the minimum position or until the supply-air temperature is above 52 F. If the outdoor air alone cannot satisfy the cooling requirements of the conditioned space, economizer cooling is integrated with mechanical cooling, providing second-stage cooling. Compressor no. 1 and the condenser fan will be energized and the position of the economizer damper will be When servicing unit, shut off all electrical power to unit to avoid shock hazard or injury from rotating parts. Cleaning — Inspect unit interior at the beginning of each heating and cooling season or as operating conditions require. EVAPORATOR COIL 1. Turn unit power off. Remove evaporator coil access panel. 2. If economizer is installed, remove economizer by disconnecting Molex plug and removing economizer mounting screws. Refer to Accessory Economizer Installation Instructions or Optional Economizer sections, on pages 11 and 14 for more details. 3. Slide filters out of unit. 4. Clean coil using a commercial coil cleaner or dishwasher detergent in a pressurized spray canister. Wash both sides of coil and flush with clean water. For best results, backflush toward return-air section to remove foreign material. 5. Flush condensate pan after completion. 6. Reinstall economizer and filters. 7. Reconnect wiring. 8. Replace access panels. 27 CONDENSER COIL — Inspect coil monthly. Clean condenser coil annually, and as required by location and outdoorair conditions. One-Row Coil — Wash coil with commercial coil cleaner. Clean the outer surfaces with a stiff brush in the normal manner. It is not necessary to remove top panel. Two-Row Coils — Clean coils as follows: 1. Turn off unit power. 2. Remove top panel screws on condenser end of unit. 3. Remove condenser coil corner post. See Fig. 38. To hold top panel open, place coil corner post between top panel and center post. See Fig. 39. 4. Remove screws securing coil to center post. 5. Remove fastener holding coil sections together at return end of condenser coil. Carefully separate the outer coil section 3 to 4 in. from the inner coil section. See Fig. 40. 6. Use a water hose or other suitable equipment to flush down between the 2 coil sections to remove dirt and debris. Clean the outer surfaces with a stiff brush in the normal manner. 7. Secure inner and outer coil rows together with a fieldsupplied fastener. 8. Reposition the outer coil section and remove the coil corner post between the top panel and center post. Reinstall the coil corner post and replace all screws. Fig. 38 — Cleaning Condenser Coil CONDENSATE DRAIN — Check and clean each year at start of cooling season. In winter, keep drain dry or protect against freeze-up. FILTERS — Clean or replace at start of each heating and cooling season, or more often if operating conditions require it. Replacement filters must be same dimensions as original filters. Fig. 39 — Propping Up Top Panel Lubrication COMPRESSORS — Each compressor is charged with correct amount of oil at the factory. FAN-MOTOR BEARINGS — Fan-motor bearings are of the permanently lubricated type. No further lubrication is required. No lubrication of condenser- or evaporator-fan motors is required. Condenser-Fan Adjustment (Fig. 41) 1. Shut off unit power supply. 2. Remove condenser-fan assembly (grille, motor, motor cover, and fan) and loosen fan hub setscrews. 3. Adjust fan height as shown in Fig. 41. 4. Tighten setscrews. 5. Replace condenser-fan assembly. Manual Outdoor-Air Damper — If outdoor-air damper blade adjustment is required, see Manual Outdoor-Air Damper section on page 10. Economizer Adjustment — Refer to Optional Economizer sections on pages 11 and 14. Fig. 40 — Separating Coil Sections Condenser Coil Grille — Condenser coil grille is shipped factory-installed. No adjustments are required. 28 50TJ 208/230 V 460 and 575 V appropriate chart are met. Note the charging charts are different from type normally used. Charts are based on charging the units to the correct superheat for the various operating conditions. Accurate pressure gage and temperature sensing device are required. Connect the pressure gage to the service port on the suction line. Mount the temperature sensing device on the suction line and insulate it so that outdoor ambient temperature does not affect the reading. Indoorair cfm must be within the normal operating range of the unit. TO USE COOLING CHARGING CHARTS — Take the outdoor ambient temperature and read the suction pressure gage. Refer to appropriate chart to determine what suction temperature should be. If suction temperature is high, add refrigerant. If suction temperature is low, carefully reclaim some of the charge. Recheck the suction pressure as charge is adjusted. EXAMPLE: (Fig. 45; Circuit 1) Outdoor Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 85 F Suction Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 psig Suction Temperature should be . . . . . . . . . . . . . . . . . 54 F (Suction Temperature may vary 6 5 F.) FAN HEIGHT ‘‘A’’, in. 2.75 3.50 Fig. 41 — Condenser Fan Adjustment Refrigerant Charge — Amount of refrigerant charge is listed on unit nameplate (also refer to Table 1). Refer to Carrier GTAC2-5 Charging, Recovery, Recycling, and Reclamation training manual and the following procedures. Unit panels must be in place when unit is operating during charging procedure. NO CHARGE — Use standard evacuating techniques. After evacuating system, weigh in the specified amount of refrigerant (refer to Table 1). If Chargemaster® charging device is used, temperature and pressure readings must be accomplished using the charging charts. LOW CHARGE COOLING — Use Cooling Charging Charts, Fig. 42-45. Vary refrigerant until the conditions of the Fig. 42 — Cooling Charging Chart; 50TJ008 29 Fig. 43 — Cooling Charging Chart; 50TJ009 Fig. 44 — Cooling Charging Chart; 50TJ012 30 Fig. 45 — Cooling Charging Chart; 50TJ014 31 TROUBLESHOOTING Tables 15-17 are provided for troubleshooting the unit and economizer. Table 15 — Cooling Service Analysis PROBLEM Compressor and condenser fan will not start. Compressor will not start but condenser fan runs. Compressor cycles (other than normally satisfying thermostat). Compressor operates continuously. Compressor makes excessive noise (50TJ014 scroll only). Excessive head pressure. Head pressure too low. Excessive suction pressure. Suction pressure too low. Compressor no. 2 will not run. CAUSE Power failure. Fuse blown or circuit breaker tripped. Defective thermostat, contactor, transformer, or control relay. Insufficient line voltage. Incorrect or faulty wiring. Thermostat setting too high. Faulty wiring or loose connections in compressor circuit. Compressor motor burned out, seized, or internal overload open. Defective run/start capacitor, overload, or start relay. One leg of 3-phase power dead. Refrigerant overcharge or undercharge. Defective compressor. Insufficient line voltage. Blocked condenser. Defective run/start capacitor, overload, or start relay. Defective thermostat. Faulty condenser-fan motor or capacitor. Restriction in refrigerant system. Dirty air filter. Unit undersized for load. Thermostat set too low. Low refrigerant charge. Leaking valves in compressor. Air in system. Condenser coil dirty or restricted. Compressor rotating in wrong direction Dirty air filter. Dirty condenser coil. Refrigerant overcharged. Air in system. Condenser air restricted or air short-cycling. Low refrigerant charge. Compressor valves leaking. Restriction in liquid tube. High heat load. Compressor valves leaking. Refrigerant overcharged. Dirty air filter. Low refrigerant charge. Metering device or low side restricted. Insufficient evaporator airflow. Temperature too low in conditioned area. Field-installed filter drier restricted. Unit in economizer mode. 32 REMEDY Call power company. Replace fuse or reset circuit breaker. Replace component. Determine cause and correct. Check wiring diagram and rewire correctly. Lower thermostat setting below room temperature. Check wiring and repair or replace. Determine cause. Replace compressor. Determine cause and replace. Replace fuse or reset circuit breaker. Determine cause. Recover refrigerant, evacuate system, and recharge to nameplate. Replace and determine cause. Determine cause and correct. Determine cause and correct. Determine cause and replace. Replace thermostat. Replace. Locate restriction and remove. Replace filter. Decrease load or increase unit size. Reset thermostat. Locate leak, repair, and recharge. Replace compressor. Recover refrigerant, evacuate system, and recharge. Clean coil or remove restriction. Reverse the 3-phase power leads as described in Start-Up section, page 26. Replace filter. Clean coil. Remove excess refrigerant. Recover refrigerant, evacuate system, and recharge. Determine cause and correct. Check for leaks, repair, and recharge. Replace compressor. Remove restriction. Check for source and eliminate. Replace compressor. Recover excess refrigerant. Replace filter. Check for leaks, repair, and recharge. Remove source of restriction. Increase air quantity. Check filter and replace if necessary. Reset thermostat. Replace. Proper operation; no remedy necessary. Table 16 — Durablade Economizer Service Analysis PROBLEM Damper does not open. CAUSE Indoor (evaporator) fan is off. No power to economizer motor. Economizer motor failure. Economizer operation limited to minimum position. OAT or EC set too high. Verify economizer control board is correctly wired and works properly. Check SAT. Damper does not close. Incorrect wiring of economizer. Verify economizer control board is functioning properly. Check SAT. Economizer motor failure. Economizer damper does not close on power loss. C1 EC IFC IFO — — — — Verify that close-on-powerloss and economizer control board are functioning properly. LEGEND Common Power Enthalpy Control Indoor (Evaporator) Fan Contactor Indoor (Evaporator) Fan On OAT PL SAT SW — — — — REMEDY 1. Check to ensure that 24 vac is present at terminal C1 on the IFC or that 24 vac is present at the IFO terminal. Check whether 24 vac is present at PL6-1 (red wire) and/or PL6-3 (black wire). If 24 vac is not present, check wiring (see unit label diagram). 2. Check proper thermostat connection to G on the connection board. 1. Check that SW3 is properly making contact with the damper blade. Check that SW1 is in the NC (normally closed) position. 2. Check diode D1. If diode is not functioning properly, replace D1. 3. Confirm that the economizer control board is grounded properly at PL6-4 (brown wire) and at brown terminal of the economizer control board (brown wire). The economizer motor must also be grounded properly at the negative motor terminal (brown wire). 4. Verify SW1 and SW3 are working and wired properly (see unit label diagram). 5. Check for 24 vac input at both PL6-1 (red wire) and PL6-3 (black wire). If 24 vac not present, check unit wiring (see unit label diagram). If 24 vac is found in both places, check for 24 vac at the yellow terminal of the economizer control board (yellow wire). If 24 vac power is not present, replace the economizer control board. If the indoor (evaporator) fan and economizer motor are energized, verify that there is a minimum of 18 vdc at the positive motor terminal. If the motor is not operating, replace the motor. 1. Set at correct temperature (3 F below indoor space temperature). 2. Check OAT or EC by setting above outdoor temperature or humidity level. If the OAT or EC switches do not close, replace OAT or EC. 1. Perform the following tests when OAT or EC is closed, Y1 is called for, and damper is at minimum position. Confirm 24 vac on gray terminal of the economizer control board (gray wire). If 24 vac is not present, check wiring (see unit label diagram). 2. Verify that SW1 and SW3 are wired correctly and working properly (see unit label diagram). 3. Check to ensure that 24 vac exists at PL6-2 (blue wire). If 24 vac is not present, check wiring (see unit wiring label diagram). 4. Check 24 vac output at PL6-10 (white wire). If 24 vac is not present, replace economizer control board. 1. After verifying that the OAT and EC settings and the economizer control board wiring are correct, check to ensure that the 24 vac terminal of the SAT has 24 vac (white wire). If OAT, EC, and control board are functioning and wired properly and no 24 vac exists, check wiring (see unit label diagram). 2. If supply-air temperature is greater than 57 F, 24 vac should be found at terminal T2 on the SAT (pink wire). If 24 vac is not present, replace SAT. 1. Verify that SW2 and SW4 are wired and working properly (see unit label diagram). 2. Check diode D2. If diode is not functioning properly, replace D2. 1. After verifying that the wiring is correct, modulate the damper to the minimum position. Remove the calls for G (evaporator fan). 2. If the damper does not move, check for 24 vac at PL6-1 (red wire). If 24 vac is not present, check wiring (see unit label diagram). 3. If damper still does not move, check for 24 vac at blue terminal of economizer control board (blue wire). If 24 vac is not present, replace the economizer circuit board. 1. After verifying that the wiring is correct and the economizer control board is functioning properly, place the OAT or EC switch in the closed position. Place a call for Y1 and open the damper to the fully open position. Confirm that the 24 vac terminal of the SAT has 24 vac (white wire). If 24 vac is not present, check wiring (see unit label diagram). 2. If supply-air temperature is less than 52 F, 24 vac should be found at terminal T1 on the SAT (violet wire). If 24 vac not found, replace SAT. If economizer control board and SAT are functioning properly, verify that there is a minimum of 18 vdc at the positive motor terminal. If a minimum of 18 vdc is present and the motor is still not operating, replace the motor. 1. Check voltage potential across batteries. If lower than 14 vdc, replace closeon-power-loss power supply (9-v alkaline batteries). Check this emergency power supply on a regular basis or whenever the filters are changed. 2. If the close-on-power-loss and economizer control board are functioning properly, check for 14 vdc or higher at the blue terminal of the economizer control board (blue wire) when power is disconnected from unit. If 14 vdc is not present, replace the control board. Outdoor-Air Thermostat Plug Supply-Air Thermostat Economizer Position Switch 33 Table 17 — PARABLADE Economizer Service Analysis PROBLEM Damper does not open. CAUSE Evaporator fan not on. No power to economizer motor. Economizer motor failure. Economizer operation limited Economizer control module failure. to minimum position. Damper does not close. No power to economizer. Spring return failure. Economizer motor failure. Damper does not open or close according to enthalpy readings. Sensor incorrectly wired or bad. REMEDY Check wiring between G on connection board and indoor (evaporator) fan contactor. 1. Disconnect power at TR and TR1. Disconnect jumper across P and P1. 2. Connect jumper across TR and 1. 3. Connect jumper across T1 and T. 4. If connected, remove enthalpy sensor from terminals SO and 1. Factory-installed 620 ohm resistor should be connected to terminals SR and +. 5. Apply power (24 vac) to terminals TR and TR1. The LED should be off and the damper should be in the closed position. 6. Disconnect the factory-installed 620 ohm resistor from terminals SR and 1. The LED should light up and the motor should drive towards open. If this does not happen, replace the economizer control module. If the indoor (evaporator) fan and economizer motor are energized, verify that there is a minimum of 24 vac at terminals TR and TR1. If the motor is not operating, replace the motor. 1. To simulate high or low enthalpy, reconnect the factory-installed 620 ohm resistor across terminals SR and 1. 2. Connect 1.2 Kohm checkout resistor across terminals SO and 1. Turn the enthalpy set point to ‘‘A.’’ The LED should turn on, indicating low enthalpy. The motor should drive towards open. If LED does not light, replace module. If motor does not drive open, check motor operation. 3. Turn the enthalpy set point to ‘‘D.’’ The LED should turn off, indicating high enthalpy. The motor should drive towards closed. If these actions do not occur, replace module. 4. Disconnect 1.2 Kohm checkout resistor before resuming operation. 1. Disconnect power at TR and TR1. Disconnect jumper across P and P1. 2. Connect jumper across TR and 1. 3. Connect jumper across T1 and T. 4. If connected, remove enthalpy sensor from terminals SO and 1. Factory-installed 620 ohm resistor should be connected to terminals SR and 1. 5. Apply power (24 vac) to terminals TR and TR1. The LED should be off and the damper should be in the closed position. 6. Disconnect the factory-installed 620 ohm resistor from terminals SR and 1. The LED should light up and the motor should drive towards open. If this does not happen, replace the economizer control module. If power to unit is off and damper does not close, check for a bound linkage. If linkage is not bound, then internal spring may be broken. Replace actuator. If the economizer control module is functioning properly, verify that there is a minimum of 24 vac at terminals TR and TR1. If the motor is not operating, replace the motor. To verify sensor operation, reconnect the 1 lead of the outdoor enthalpy sensor to the 1 terminal of the economizer control module. Connect a DC milliammeter between terminals SO of the economizer control module and terminal S of the enthalpy sensor. The milliammeter should indicate between 3 and 25 mA if the sensor is operating properly. If the milliammeter indicates 0, the sensor may be wired backwards. If any other readings are shown, replace the sensor. LEGEND LED — Light-Emitting Diode Copyright 1996 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 4 Catalog No. 565-003 Printed in U.S.A. Form 50TJ-11SI Pg 34 11-96 Replaces: 50TJ-4SI Tab 1b 6b MODEL NO.: SERIAL NO.: DATE: TECHNICIAN: II. PRE-START-UP (insert checkmark in box as each item is completed) M REMOVE COMPRESSOR TIE DOWN BANDS (SIZE 014 ONLY) PER INSTALLATION INSTRUCTIONS M VERIFY THAT CONDENSATE CONNECTION IS INSTALLED AS SHOWN IN THE INSTALLATION INSTRUCTIONS M CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS M CHECK THAT INDOOR AIR FILTERS ARE CLEAN AND IN PLACE M VERIFY THAT UNIT INSTALLATION IS LEVEL WITHIN TOLERANCES LISTED IN THE INSTALLATION INSTRUCTIONS M CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW TIGHTNESS M CHECK PULLEY ALIGNMENT AND BELT TENSION; REFER TO INSTALLATION INSTRUCTIONS III. START-UP ELECTRICAL SUPPLY VOLTAGE L1-L2 L2-L3 L3-L1 CIRCUIT NO. 1 COMPRESSOR AMPS L1 L2 L3 CIRCUIT NO. 2 COMPRESSOR AMPS L1 L2 L3 INDOOR FAN AMPS L1 L2 L3 TEMPERATURES OUTDOOR-AIR TEMPERATURE DB RETURN-AIR TEMPERATURE DB WB COOLING SUPPLY AIR PRESSURES CIRCUIT NO. 1 CIRCUIT NO. 2 REFRIGERANT SUCTION PSIG PSIG REFRIGERANT DISCHARGE PSIG PSIG M VERIFY REFRIGERANT CHARGE USING COOLING CHARGING CHARTS ON PAGES 29-31 M VERIFY 3-PHASE SCROLL COMPRESSOR IS ROTATING IN THE CORRECT DIRECTION (50TJ014 ONLY) Copyright 1996 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 4 Catalog No. 565-003 Printed in U.S.A. Form 50TJ-11SI CL-1 11-96 Replaces: 50TJ-4SI Tab 1b 6b CUT ALONG DOTTED LINE I. PRELIMINARY INFORMATION CUT ALONG DOTTED LINE (Remove and Store in Job File) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - START-UP CHECKLIST