Cres Cor R171SUA20 Manual De Usuario
5925 Heisley Road • Mentor, OH 44060-1833
Series R-171-S
Refrigerated Cabinets
FL-2314
Rev. 3 (10/06)
Page 3 of 4
OPERATING and MAINTENANCE INSTRUCTIONS
for Cres Cor Refrigerated Cabinets,
Model R-171-S Series
Call Toll-free: 877-CRES COR (273-7267) • Fax: 800-822-0393 • www.crescor.com
MAINTENANCE:
HOW TO CHARGE AND SERVICE THE REFRIGERATION SYSTEM
Note: The refrigerator is shipped fully charged.
The high-side pressure should be approximately 175 PSI;
low pressure should be approximately 18 PSI at 75° F (24° C) room temperature.
The charge should be 18 ounces of R134a.
Service valves are located on the condenser/compressor assembly.
The charge should be 18 ounces of R134a.
Service valves are located on the condenser/compressor assembly.
Failure
Probable Cause
1. Power light off
1. Power Cord
2. Compressor off
2. Power supply down
3. Evaporator fan on, Power
light on and Compressor off
3a. Thermostat defective
3b. Defective start relay (compressor)
3b. Defective start relay (compressor)
4. Compressor on and cabinet
not cooling
4a. Low charge
4b. Frost build-up on evaporator coil
4c. Evaporator fan defective
4d. Thermostat defective
4b. Frost build-up on evaporator coil
4c. Evaporator fan defective
4d. Thermostat defective
5. Compressor starts and stops;
cabinet not cooling
5a. Low Charge
5b. Faulty start capacitor (compressor)
5c. Faulty start relay (compressor)
5b. Faulty start capacitor (compressor)
5c. Faulty start relay (compressor)
6. Noisy compressor
6a. Low charge
6b. Defective
6b. Defective
TROUBLE-SHOOTING GUIDE
Unit Condition:
Unit Condition:
Unit is plugged in. Switch is ON.
NOTES:
1. Thermostat is pre-set at approximately 38°F (3.8°C). Temperature adjustment can only be made by a Service Agency.
2 For replacement of the electrical parts, refer to our list of authorized service centers (FL-1400).
2 For replacement of the electrical parts, refer to our list of authorized service centers (FL-1400).