9.3.11 - Symptom 3: Shuts Off On High Pressure Control

Automatically Resets When Discharge Pressure Falls To A Safe Level - Control Located Inside Chiller Unit.

Water Cooled Condenser

Cause

Remedy

9.3.11

Water regulation valve

1.

Adjust condenser water regulating valve to maintain 190 to 210 PSIG refrigerant head pressure. If valve is defective have valve repaired or replaced by a refrigeration serviceman.

9.3.12

Insufficient condenser water flow.

2.

Check condenser water pumping system.

9.3.13

Condenser water temperature too high.

3.

Check cooling tower for proper operation (i.e.; tower fans, fan belts and spray nozzles.

9.3.14

Condenser water tube scaled

4.

Clean with brushes and chemicals approved by Budget Chillers.

9.3.15

Excess refrigerant.

5.

Have refrigeration serviceman purge system while operating until bubbles first appear in sight glass. Then have unit recharged until glass just clears.

9.3.16

Air in system

6.

Have refrigeration serviceman purge the system.

9.3.17

Improperly set high pressure control.

7.

Have refrigeration serviceman reset or replace the control if defective.

9.0 | 9.1 | 9.2 | 9.3 | 9.36 | 9.3.11 | 9.4 | 9.5 | 9.6 | 9.7 | 9.8