P7 Tests - High Pressure Tests: Unit is run at full capacity without condenser fan running to make sure that the HPS opens and closes properly.
| P7-1 High Pressure Switch (HPS) Closing Test |
| If return temperature greater than -2.4 C, set setpoint to -5.0 C, else set setpoint to - 30 C. Restart unit according to normal startup logic. Run unit normally for 120 seconds. The test passes if the high pressure switch closes within 75 seconds after end of Test 7-0, else the test fails. Test P7-0 must pass for this test to execute. |
