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 1st Choice 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. |
| Index: 9.0 | 9.1 | 9.2 | 9.3 | 9.36 | 9.3.11 | 9.4 | 9.5 | 9.6 | 9.7 | 9.8 | ||
1st Choice Portable Chillers, 111 Esna Park Drive, Unit 7, Markham, Ontario, L3R 1H2
Toll Free: 1.877.513.8310 ~ Email: sales@1stchoicechillers.com