Carrier SINGLE PACKAGED ELECTRIC COOLING UNITS 50GX- Manuals

INSTALLATION 1. Position the lifting bracket assembly around the base of the unit. Leave the top shipping skid on the unit to act as aspreader bar. Be sure the strap does not twist. 2. Place each of the four (4) metal lifting brackets into the handholds in the composite pan. 3. Tighten the ratchet s...

slope of at least one in. for every 10 ft of horizontal run. Be sureto check the drain tube for leaks. Prime trap at the beginning of thecooling season start-up. Step 7—Install Duct Connections The unit has duct flanges on the supply- and return-air openings onthe side and bottom of the unit. For do...

CONFIGURING UNITS FOR DOWNFLOW (VERTICAL) DIS-CHARGE Before performing service or maintenance operations on thesystem, turn off main power to unit or electrical shock couldresult. 1. Open all electrical disconnects before starting any service work. 2. Remove return duct cover located on duct panel b...

Step 8—Install Electrical Connections The unit cabinet must have an uninterrupted, unbrokenelectrical ground to minimize the possibility of personalinjury if an electrical fault should occur. This ground mayconsist of an electrical wire connected to the unit ground lugin the control compartment, or ...

Table 4—Electrical Data—50GS UNIT 50GS SIZE V-PH-HZ VOLTAGE RANGE COMPRESSOR OFM IFM ELECTRIC HEAT POWER SUPPLY Min Max RLA LRA FLA FLA Nominal kW* FLA MCA MOCP* 018 208/230-1-60 187 253.00 9 45 0.80 2 -/- 3.8/5.0 7.5/10 -/- 18.1/20.836.1/41.7 13.9/13.924.8/28.347.4/54.3 20/2025/3050/60 024 208/230-...

Table 5—Electrical Data—50GX UNIT 50GX SIZE V-PH-HZ VOLTAGE RANGE COMPRESSOR OFM IFM ELECTRIC HEAT POWER SUPPLY Min Max RLA LRA FLA FLA Nominal kW* FLA MCA MOCP* 024 208/230-1-60 187 253 10.30 56.00 0.80 2.00 -/- 3.8/5.0 7.5/10 -/- 18.1/20.836.1/41.7 15.7/15.725.1/28.547.6/54.6 20/20 47.6/54.6 50/60...

PRE-START-UP Failure to observe the following warnings could result inserious personal injury:1. Follow recognized safety practices and wear protective goggles when checking or servicing refrigerant system. 2. Do not operate compressor or provide any electric power to unit unless compressor terminal...

NOTE: Adjustment of the refrigerant charge is not required unless the unit is suspected of not having the proper R-22 charge. A superheat charging chart is attached to the outside of the serviceaccess panel. The chart includes the required suction line tempera-ture at given suction line pressures an...

Table 6—Wet Coil Air Delivery (Deduct 10% for 208v)* Horizontal and Downflow Discharge Unit 50GS018-060 230 AND 460 VOLT Unit Motor Speed External Static Pressure (in. wg) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 018 Low Watts 227 212 196 177 165 153 - - - - - Cfm 1000 915 825 710 530 340 - - - -...

Fig. 19 — Cooling Charging Chart, 50GS042 Units C99041 Fig. 20—Cooling Charging Chart, 50GS048 Units C99042 ° OUTDOOR TEMP ° F ° C 115 46 45 7 55 13 65 18 75 24 95 35 105 41 85 29 Fig. 21—Cooling Charging Chart, 50GS060 Units C99043 ° OUTDOOR TEMP ° F ° C 115 46 45 7 55 13 65 18 75 24 95 35 105 41 8...

Table 8—Troubleshooting—Cooling SYMPTOM CAUSE REMEDY Compressor and condenser 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, or control relay Replace component. Insuffici...

START-UP CHECKLIST (REMOVE AND STORE IN JOB FILE) I. PRELIMINARY INFORMATION Model No. .............................................................................................................................................................................................................. Serial...