8.Use of the adjustable low pressure control (if applicable)
Cut out = 5 psig; Cut in = 25 psig; Differential = 20 psig;
It may need to adjust the setting in the field to get the right cycle time.
Fig. 2.9 Adjustable Low Pressure Control
9. Condensing Unit Troubleshooting
Unit not running
a. | Incorrect power supply | a. | Check for proper voltage |
b. | Incorrect or loose wirings | b. | Check all wirings and connections |
c. | Failed components | c. | Check start relay, start capacitor, overload |
|
|
| protector, compressor. |
d. | Liquid refrigerant in the compressor | d. | Call service for OEM information |
e. | Low pressure switch shutting down the system | e. | Check for system restriction or low |
|
|
| refrigerant |
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