On |
Select this option to enable the SFC Control Module and prepare it for operation. The back-pressure regulator (BPR) controls to setpoint, the booster pump is operational, and the chiller and BPR temperature zones are also operational. |
Off |
Select this option to turn off all control. The booster pump stops, the BPR stops controlling, and the chiller and BPR temperature zones are turned off. |
Standby |
Select this option to maintain thermal control of the chiller and BPR temperature zones and keep them in a Ready state while the pressure control is turned off. This allows for a rapid start of operation when re-enabled. After 4 hours of inactivity in the Standby state, the SFC Control Module automatically turns off all control. |
DePressurize |
This check box is enabled only when Off or Standby are selected, If this check box is marked, the BPR opens to allow the system to depressurize through the BPR and its vent. If the check box is cleared, the BPR does not control, but remains in its last operational state. |