Carrier SUPRA 950Mt, Operation & Service Manual

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2-19 62-11863
2.7.4 Compressor Reference Data
2.7.5 Refrigeration System Data
2.7.6 Electrical Data
a. Evaporator Fan Motors
No maintenance: Lubricated for life.
b. Standby Motor: Rotation speed: 1760 rpm @ 60 hz
c. Alternator: 70 amps
d. Standby Motor Overload
The function of the motor overload is to protect the standby motor against high amperage draw. The overload provides
an adjustable knob to set the maximum amperage draw. The motor overload is also equipped with a reset button. This
overload has three positions - automatic reset, manual, and test. In the application the button should remain in the
automatic reset position.
Model 05G 37CFM
No. Cylinders 6
No. Unloaders 1
Weight 137 lbs (62 kg)
Oil Charge 5.5 pints (2.6 liters)
Approved Oil Mobil Arctic EAL 68
Defrost Timer 1.5h, 3h, 6h, or 12 hours
Defrost Thermostat
Opens at: 50°F ± 5°F (10° ± 3°C)
Closes at: 45°F ± 5°F (7° ± 3°C)
High Pressure Cutout Switch (HP1)
Opens at: 465 ± 10 psig (32.1 ± 0.7 bar)
Closes at: 350 ± 10 psig (24.1 ± 0.7 bar)
High Pressure Cutout Switch (HP2)
Opens at: 348 ± 10 psig (24.0 ± 0.7 bar)
Closes at: 312 ± 10 psig (21.5 ± 0.7 bar)
Refrigerant Charge Refer to Section 2.7.1
Compressor Pressure Regulating
Valve (CPR) in heat mode
CPR Setting − 28 ± 1 psig (1.9 bar)
Thermostatic Expansion Valve
Superheat
Setting at 0°F (-20°C) compartment temperature
Setting: 8 to 10°F (4 to 6°C)
Compressor Discharge
Temperature Sensor (CDT)
Unit shuts down at 310°F (154°C) for three min-
utes or
350°F (177°C)
Voltage 230 V
Frequency 60 HZ
Speed 2950 rpm
Power 200 W
Current .88 A
Operating Voltage FLA Rating Circuit Breaker Capacity Cable Requirement
230 V 60 Hz 3 phase 35 A 50 A 8/3 with ground (up to 50 ft)