Carrier 50JS - Manuals

5. Tighten the tension buckle until it is taut. Lifting brackets must be secure in the handholds. 6. Attach field-supplied clevis or hook of sufficient strength to hole in the lifting bracket (See Fig. 8). 7. Attach the 2 safety straps directly to the clevis or hook at the 4 rigging brackets. DO NOT...

Table 1A—Physical Data UNIT SIZE 50JS018 50JS024 50JS030 50JS036 50JS042 50JS048 50JS060 NOMINAL CAPACITY (ton) 1-1/2 2 2-1/2 2-1/2 3-1/2 4 5 OPERATING WEIGHT (lb) 283 289 287 291 323 353 418 COMPRESSOR QUANTITY 1 TYPE RECIPROCATING COMPRESSOR SCROLL COMPRESSOR REFRIGERANT R-22 REFRIGERANT METERING ...

The units dispose of condensate through a 3/4 in. NPT femalefitting that exits on the compressor end of the unit. Condensatewater can be drained directly onto the roof in rooftop installations(where permitted) or onto a gravel apron in ground level installa-tions. Install a field-supplied condensate...

Fig. 12—Wiring Schematics A00073 FIELD SPLICETERMINAL (MARKED)TERMINAL (UNMARKED)SPLICESPLICE (MARKED)FACTORY WIRINGFIELD CONTROL WIRINGFIELD POWER WIRINGACCESSORY OR OPTIONALWIRINGTO INDICATE COMMONPOTENTIAL ONLY:NOT TO REPRESENT WIRING AHA ADJUSTABLE HEAT ANTICIPATOR C CONTACTOR CAP CAPACITOR CB C...

Fig. 14—Wiring Schematics A00075 FIELD SPLICETERMINAL (MARKED)TERMINAL (UNMARKED)SPLICESPLICE (MARKED)FACTORY WIRINGFIELD CONTROL WIRINGFIELD POWER WIRINGACCESSORY OR OPTIONALWIRINGTO INDICATE COMMONPOTENTIAL ONLY:NOT TO REPRESENT WIRING AHA ADJUSTABLE HEAT ANTICIPATOR C CONTACTOR CAP CAPACITOR CB C...

Table 3A—Electrical Data—50JS UNIT 50JS SIZE V-PH-HZ VOLTAGE RANGE COMPRESSOR ODFM IDFM ELECTRIC HEAT POWER SUPPLY Min Max RLA LRA FLA FLA Nominal KW* FLA MCA Max Fuse or CRCT Breaker MOCP 018 208/230-1-60 187 253 9 48 0.9 1.8 -/- 3.8/5 7.5/10 -/- 18.1/20.836.1/41.7 14.0/14.024.8/28.347.4/54.3 20/20...

→ Table 3B—Electrical Data—50JX UNIT 50JX SIZE V-PH-HZ VOLTAGE RANGE COMPRESSOR ODFM IDFM ELECTRIC HEAT POWER SUPPLY Min Max RLA LRA FLA FLA Nominal KW* FLA MCA Max Fuse or CRCT Breaker MOCP 024 208/230-1-60 187 253.00 10.8 56 0.90 2 -/- 3.75/5.0 7.5/10 -/- 18.1/20.836.1/41.7 16.4/16.425.1/28.547.6/...

be in a conduit until they enter the duct panel; conduit terminationat the duct panel must be watertight. Run the high-voltage leadsthrough the power entry knockout on the power entry side panel(See Fig. 2 and 3 for location and size). When the leads are insidethe unit, run leads up the high-voltage...

SPECIAL PROCEDURES FOR 208-V OPERATION 1. Disconnect the yellow primary lead (w110) from the trans- former. See unit wiring label (See Fig. 12 through 14). 2. Connect the yellow primary lead (w110) to the transformer terminal labeled 200v. Indoor blower-motor speeds may need to be changed for 208-vo...

Fig. 22—Typical Heat Pump Operation, Cooling Mode 1. Hot gas from compressor flows through the 4-way valve and is directed to the outdoor coil. It is then condensed and subcooled through the coil circuits. Refrigerant leaves the outdoor coil by way of the OD Accurater in the bypass position to the l...

2. Place SYSTEM switch in COOL position and FAN switch in AUTO position. Set control below room temperature. Observethat cooling cycle shuts down when control setting is satisfied. 3. Place system switch in HEAT position. Set control above room temperature. Observe that compressor, outdoor fan, andi...

The charging label and the tables shown refer to system tempera-tures and pressures in cooling mode only. A refrigerant charginglabel is attached to the outside of the service access door. If chargelevel is suspect in Heating mode, reclaim all refrigerant and chargeto nameplate amount. (This informa...

To change the speed of the blower motor (BM), remove the fanmotor speed leg lead from the blower relay (BR). This wire isattached to IGC terminal BM for single-phase and 3-phase units.To change the speed, remove and replace with lead for desiredblower motor speed. Insulate the removed lead to avoid ...

exists, be sure that all supply- and return-air grilles are open andfree from obstructions, and that the air filter is clean. Whennecessary, refer to Indoor Airflow and Airflow Adjustmentssection to check the system airflow. METERING DEVICES — Refrigerant metering devices are fixedorifices and are l...

Table 5—Cooling and Heating 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 thermostat, contactor, transformer, con-trol relay or defrost board ...

Cooling and Heating Troubleshooting Chart (cont’d) SYMPTOM CAUSE REMEDY Suction pressure too low (Cool) Dirty air filter Replace filter (Heat) Outdoor coil frosted Move timer on control board to 30 min. betweendefrost cycles Low refrigerant charge Check for leaks, repair and recharge Metering device...