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50TFQ008-012
Single-Package Rooftop
Heat Pump Units
Installation, Start-Up and
Service Instructions
CONTENTS Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloth for unbrazing operations. Have
Page
fire extinguisher available for all brazing operations.
SAFETY CONSIDERATIONS .........................1
INSTALLATION ...................................1-43
Step 1— Provide Unit Support.......................1
ROOF CURB
Before performing service or maintenance operation
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Fig. 1 — Roof Curb Details 2
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1 pitch the line away from the unit at / -in. per ft of run. Do not 4 use a pipe size smaller than the unit connection. See Fig. 4. Step 4 — Rig and Place Unit — Inspect the unit for transportation damage. File any claim with the transportation agency. Keep the unit upright and do not drop it. Spreader bars are not required if top crating is left on the unit. Rollers may be used to move the unit across a roof. Level by using the unit MAXIMUM ALLOWABLE frame as a reference. See Table 1 and Fig. 5
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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. WEIGHT A B C 50TFQ 3. Unit weights do not include economizer. See Table 1 for economizer Lb Kg in. mm in. mm in. mm weights. 008 940 426 77.42 1966.5 41.5 1054 42.12 1070 009 965 438 77.42 1966.5 41.5 1054 42.12 1070 012 1015 460
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Table 1 — Physical Data UNIT SIZE 50TFQ 008 009 012 1 1 NOMINAL CAPACITY (tons) 7 / 8 / 10 2 2 OPERATING WEIGHT (lb) Unit 940 965 1015 Economizer EconoMi$er IV 75 75 75 Roof Curb* 143 143 143 COMPRESSOR (Hermetic) Reciprocating Scroll Quantity 222 Oil (oz) 45 ea 54 ea 54 ea REFRIGERANT TYPE R-22 Operating Charge (lb-oz) Circuit 1 5-14 8- 6 7-14 Circuit 2 5-13 8-13 8- 3 OUTDOOR COIL Enhanced Copper Tubes, Aluminum Lanced Fins, Acutrol™ Feed Device Rows...Fins/in. 1...17 2...17 2...17 Total Face A
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6 Fig. 6 — Base Unit Dimensions
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When installing units, provide a disconnect per the NEC. Step 5 — Make Electrical Connections All field wiring must comply with the NEC and local re- quirements. In Canada, electrical connections must be made in accordance with CSA (Canadian Standards Association) C22.1 Unit cabinet must have an uninterrupted, unbroken electri- Canadian Electrical Code Part One. cal ground to minimize the possibility of personal injury if Install field wiring as follows: an electrical fault should occur. This gr
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Table 2 — Electric Heating Capacities ELECTRIC HEATER SINGLE POINT BOX 50TFQ UNIT VOLTAGE ACCESSORY PART NUMBER PACKAGE NO. UNIT SIZE (60 Hz) kW CRHEATER---A00 CRSINGLE---A00 7.8/ 9.6/10.4 017 007 12.0/14.7/16.0 010 007 208/230/240 18.6/22.8/24.8 011 009 (3 phase) 24.0/29.4/32.0 012 009 31.8/39.0/42.4* 012 and 017 013 12.8/13.9 016 006 008, 009 15.2/16.5 013 006 460/480 25.6/27.8 014 008 (3 phase) 30.4/33.0 015 008 38.4/41.7* 014 and 016 010 575 17.0 018 006 (3 phase) 34.0 019 006† 7.8/ 9.6/10.4
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Table 3A — Electrical Data (Units Without Electrical Convenience Outlet) (cont) VOLTAGE COMPRESSOR DISCONNECT ELECTRIC HEAT* POWER SUPPLY RANGE (each) SIZE† 50TFQ NOMINAL IFM OFM IFM UNIT SIZE V-PH-Hz TYPE FLA FLA Nominal Min Max RLA LRA FLA MCA MOCP FLA LRA kW** — — 44.6/ 44.6 45/ 45†† 47/ 47 321/321 7.8/10.4 21.7/ 25.0 71.7/ 75.9 80/ 80 72/ 75 343/346 12.0/16.0 33.3/ 38.5 86.2/ 92.7 90/100 85/ 91 354/360*** STD 187 254 16.0 137.0 1.4 5.8 18.6/24.8 51.6/ 59.7 109.1/119.2 110/125 106/115 373/381
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Table 3B — Electrical Data (Units With Electrical Convenience Outlet) VOLTAGE COMPRESSOR ELECTRIC DISCONNECT POWER SUPPLY RANGE (each) HEAT* SIZE† 50TFQ NOMINAL IFM OFM IFM UNIT SIZE V-PH-Hz TYPE FLA FLA Nominal Min Max RLA LRA FLA MCA MOCP FLA LRA kW** — — 43.6/ 43.6 45/ 45†† 46/ 46 234/234 7.8/10.4 21.7/ 25.0 70.7/ 74.8 80/ 80 71/ 75 256/259 12.0/16.0 33.3/ 38.5 85.2/ 91.7 90/100 85/ 91 267/272*** STD 187 254 13.4 91.0 1.4 5.8 18.6/24.8 51.6/ 59.7 108.1/118.2 110/125 106/115 285/294*** 24.0/32
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Table 3B — Electrical Data (Units With Electrical Convenience Outlet) (cont) VOLTAGE COMPRESSOR ELECTRIC DISCONNECT POWER SUPPLY RANGE (each) HEAT* SIZE† 50TFQ NOMINAL IFM OFM IFM UNIT SIZE V-PH-Hz TYPE FLA FLA Nominal Min Max RLA LRA FLA MCA MOCP FLA LRA kW** — — 52.1/ 52.1 60/ 60†† 55/ 55 300/300 7.8/10.4 21.7/ 25.0 79.2/ 83.4 80/ 90 80/ 84 322/325*** 12.0/16.0 33.3/ 38.5 93.7/100.2 100/110 93/ 99 333/338*** STD 187 254 17.2 124.0 1.4 5.8 24.0/32.0 66.6/ 77.0 135.4/148.4 150/150 132/144 366/37
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FIELD CONTROL WIRING — Install a Carrier-approved DEFROST BOARD — The defrost board timer cycle is set to accessory thermostat assembly according to the installation 30 minutes. To change the cycle time, turn off power to the instructions included with the accessory. Locate the thermostat unit and install lockout tag. Remove the wire from defrost assembly on a solid wall in the conditioned space to sense aver- board connected to the 30 minute quick-connect. See Fig. 10. age temperature in accord
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Table 4 — Heat Anticipator Settings UNIT VOLTAGE 208/230 460 575 UNIT Configuration Configuration Configuration Heater Heater Heater 2-Stage 2-Stage 2-Stage kW* kW* kW* 1-Stage 1-Stage 1-Stage Stage 1 Stage 2 Stage 1 Stage 2 Stage 1 Stage 2 10.4, 16.0 0.3 NA NA 13.9, 16.5 0.3 NA NA 17.0, 34.0 0.3 NA NA 27.8, 33.0 50TFQ 24.8, 32.0 0.6 0.3 0.3 42.4, 50.0 0.9 0.6 0.3 41.7, 50.0 0.6 0.3 0.3 51.0 0.6 0.3 0.3 *kW is based on 240, 480, or 575 v. CONVENIENCE OUTLET — An optional convenience out- let pro
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PREMIERLINK™ CONTROL — The PremierLink control- ler is compatible with Carrier Comfort Network® (CCN) devices. This control is designed to allow users the access and ability to change factory-defined settings, thus expanding the function of the standard unit control board. Carrier’s diag- nostic standard tier display tools such as Navigator™ module or Scrolling Marquee can be used with the PremierLink controller. The PremierLink controller (see Fig. 15A and 15B) requires a Carrier electronic the
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Table 5 — PremierLink™ Sensor Usage OUTDOOR AIR RETURN AIR OUTDOOR AIR RETURN AIR APPLICATION TEMPERATURE SENSOR TEMPERATURE SENSOR ENTHALPY SENSOR ENTHALPY SENSOR Dry Bulb Temperature with PremierLink™* Included — —— — (PremierLink HH79NZ017 requires4-20mA Actuator) Differential Dry Bulb Temperature with Required — PremierLink* Included — 33ZCT55SPT —— (PremierLink HH79NZ017 or Equivalent requires4-20mA Actuator) Single Enthalpy with PremierLink* Included — Required — (PremierLink — — Not Used
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J6 J5 J4 ANAL OG 0-20mAIN DISCRETE PREMIERLINK CONTROL HINGED DOOR PANEL PREMIERLINK COVER Fig. 15B — PremierLink™ Controller (Installed) BLK VIO RED HK50AA039 TB-2 SAT BLU PNK PNK BRN 7 7 BLK BLU 1 BRN ORN VIO VIO PNK PremierLink 6 6 2 BRN OAT BRN RED 11 11 Space Temp./ Set 3 BLK Point Adjustment BRN 10 BLU 10 BRN 4 YEL GRN 8 8 RED 5 YEL BLU 2 Indoor Air 2 BLU Quality Sensor 6 BRN 3 WHT 3 7 BLU PNK BLK Outdoor Air J7 4 J9 J8 4 J2 Quality Sensor GRA J1 PP/MP 0-20 mA Relays COMMS 8 PWR ORN RED Po
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C7400A1004 + Enthalpy Sensors and Control — The enthalpy control ENTHALPY CONTROLLER (OUTDOOR S RED (HH57AC077) is supplied as a field-installed accessory to be AIR BRN + ENTHALPY B used with the economizer damper control option. The outdoor TR TR1 BLK A C SENSOR) air enthalpy sensor is part of the enthalpy control. The separate D RED SO + field-installed accessory return air enthalpy sensor S (RETURN AIR SR + (HH57AC078) is required for differential enthalpy control. ENTHALPY + SENSOR) 3 NOTE:
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OPTIONAL ECONOMI$ER IV AND ECONOMI$ER2 — 4. Swing out indoor coil access panel and insert the hood See Fig. 19 for EconoMi$er IV component locations. See sides under the panel (hood top). Use the screws provided Fig. 20 for EconoMi$er2 component locations. to attach the hood sides to the hood top. Use screws pro- vided to attach the hood sides to the unit. See Fig. 24. NOTE: These instructions are for installing the optional 5. Remove the shipping tape holding the economizer baro- EconoMi$er IV
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6. Insert the hood divider between the hood sides. See 8. Caulk the ends of the joint between the unit top panel and Fig. 24 and 25. Secure hood divider with 2 screws on the hood top. See Fig. 23. each hood side. The hood divider is also used as the bot- 9. Replace the filter access panel. tom filter rack for the aluminum filter. 10. Install all EconoMi$er IV accessories. EconoMi$er IV 7. Open the filter clips which are located underneath the wiring is shown in Fig. 26. EconoMi$er2 wiring is sho
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BLACK 4 3 5 BLUE 2 500 OHM RESISTOR 8 VIOLET 6 NOTE 1 PINK 7 RUN RED 1 - NOTE 3 + 10 50HJ540573 ACTUATOR ASSEMBLY 11 OPTIONAL CO2 SENSOR4-20mA OUTPUT 9 WHITE DIRECT DRIVE 12 ACTUATOR ECONOMISER2 PLUG NOTES: 1. Switch on actuator must be in run position for economizer to operate. 2. PremierLink™ control requires that the standard 50HJ540569 outside-air sensor be replaced by either the CROASENR001A00 dry bulb sensor or HH57A077 enthalpy sensor. 3. 50HJ540573 actuator consists of the 50HJ540567 act
