Carrier 50VL---A- Manuals

7 Step 3 — Provide Clearances The required minimum service clearances are shown in Fig. 2 and3. Adequate ventilation and outdoor air must be provided. The outdoor fan draws air through the outdoor coil and discharges it through the top fan grille. Be sure that the fan discharge does notrecirculate t...

8 Step 6 — Connect Condensate Drain NOTE : When installing condensate drain connection be sure to comply with local codes and restrictions.Model 50VL--A disposes of condensate water through a 3/4 in. NPT fitting which exits through the base on the evaporator coil access side. See Fig. 2 and 3 for lo...

9 Horizontal Duct Covers A09076 BasepanDownflow(Vertical)SupplyKnockout BasepanDownflow (Vertical)ReturnKnockout A09093 Fig. 9 -- Supply and Return Duct Opening Step 8 — Install Electrical Connections ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death.The...

10 POWERSUPPLY FIELD-SUPPLIEDFUSED DISCONNECT HIGH VOLTAGEPOWER LEADS(SEE UNIT WIRINGLABEL) EQUIP GR CONTROL BOX LOW-VOLTAGEPOWER LEADS(SEE UNITWIRING LABEL) W1 Y G R C WHT(W1) YEL(Y) GRN(G) RED(R) BRN(C) THERMOSTAT(TYPICAL) 3-PHASE SHOWN1-PHASE USES TWO POWER LEADS W2 VIO (W2) SPLICE BOX DH BLU (DH...

11 Table 1 – Physical Data--Unit 50VL--A UNIT SIZE 24 30 36 42 48 60 NOMINAL CAPACITY (ton) 2 2 --- 1/2 3 3 --- 1/2 4 5 SHIPPING WEIGHT* lb. SHIPPING WEIGHT* (kg) 295 134 307 139 365 166 421 191 439 199 467 212 COMPRESSORS Quantity Scroll 1 REFRIGERANT (R --- 410A) Quantity lb Quantity (kg) 6.0 2.7 ...

12 PRE--START--UP ENVIRONMENTAL, FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death and/or property damage. 1. Follow recognized safety practices and wear protective goggles when checking or servicing refrigerant system. 2. Relieve and re...

13 Proceed as follows: 1. Remove caps from low-- and high--pressure service fittings.2. Using hoses with valve core depressors, attach low-- and high--pressure gauge hoses to low-- and high--pressure service fittings, respectively. 3. Start unit and let run until system pressures stabilize.4. Measur...

14 HIGH LOW COM QC5 QC4 QC3 KZ KL 07 09 08 0L0 ALO R13 C8 R11 Q1 Q3 D2 AL2 DCR QCR QC1 C RL 01 G1 G2 Z1 A7 R9 AB A15 C4 C9 C0 QIL Z2 06 04 U1 C3 R4 RL4 JWZ C7 D5 D3 R3 R5 R6 R2 JW5 QCB Y R W2 Y C W3 W3 W2 W2 C JW4 P2 JW3 P4 P1 W2 W3 Y2 Y1 Y DH G C R SSTZ-8 P3 SDL 24V AC/R 3AMP CDM/C F1 STD DEHUM A09...

21 DEHUM STD BLK 7 7 6 6 11 11 10 10 8 8 2 2 3 3 4 4 1 1 5 5 9 9 12 12 BLU YEL ECON PLUG YEL BLK ENERGIZED LEGEND FIELD SPLICE TERMINAL (MARKED) TERMINAL (UNMARKED) SPLICE (IF USED) SPLICE (MARKED)FACTORY WIRINGFIELD CONTROL WIRING FIELD POWER WIRING ACCESSORY OR OPTIONAL WIRINGTO INDICATE COMMON PO...

22 STD DEHUM BLK D LADDER WIRING DIAGRAM YEL 21 L1 CCH 13 COMP 460V C R S CAP 24V 23 T3 T1 T2 460V 24V BLK YEL YEL BLK YEL YEL RED L3 BLK BLK G/Y BRN BLU 13 GRN 11 BLK C,TRAN 11 11 IFM OFM IFM X N G L C G/Y BLK REDBRN YEL GRN WHT VIO P1-7 P1-5P1-6 P1-4 P1-3 P1-2 P1-1 P2-4 P2-3 P2-2 P2-1 HR1 HR4 HR2 ...

24 MAINTENANCE To ensure continuing high performance, and to minimize thepossibility of premature equipment failure, periodic maintenance must be performed on this equipment. This cooling unit should beinspected at least once each year by a qualified service person. To troubleshoot unit, refer to Ta...

25 MOTOR FAN GRILLE MOTOR SHAFT A A08505 MAX DISTANCE BETWEEN TOP OF FAN GRILLE AND BOTTOM OF FAN BLADE SIZE “A” IN. MM 24 6.3 160 30 6.3 160 36 7.3 185 42 7.6 193 48 7.6 193 60 7.6 193 Fig. 16 -- Fan Blade Position Compressor Access Panel BlowerAccessPanel ControlAccessPanel A09214 Fig. 17 -- Unit ...

27 readily. POE oils can absorb 15 times as much water as other oilsdesigned for HCFC and CFC refrigerants. Take all necessary precautions to avoid exposure of the oil to the atmosphere. Servicing Systems on Roofs with Synthetic Materials POE (polyolester) compressor lubricants are known to cause lo...

28 Table 10 – Troubleshooting Chart SYMPTOM CAUSE REMEDY Compressor and outdoor fan will not start Power failure Call power company Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker Defective contactor, transformer, control relay, or high-- pressure, loss--of--charge or low...