APC ACRA100 Installation Manual download pdf (Page 59)

51Pumped Refrigerant System Operation and Maintenance

Maintenance

Leak Detector

Calibration

The leak detection feature must be calibrated before it can be used.

Note: In order for calibration to successfully complete, the RDU and CMs must be on with a

minimum system load of 5 kW.

Path: Main > RDU > Status > Measurements

From the display interface, or BMS, start calibration from the above path.

Choose Calibrating to initiate the feature.

When Calibration is complete, the leak detector will automatically start leak monitoring.

Leak monitoring will continue as long as the RDU is on, the configuration of the system has not

changed, and the total system load exceeds 3 kW.

Note: Leak detection is Suspended and a Warning alarm will come on when:

1. Refrigerant is added to the system

2. CMs are added or removed from the system

3. CMs are placed into Standby, Evacuation, Stop, or Maintenance modes

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APC ACRA100 Installation Manual Page 59