Removal and replacement procedures 34
5.
Route the wire from the junction box to the sensor location, and then remove the sensor.
Replacing the drain pan sensor
1.
Position the sensor in the drain pan.
2.
Route the wire to the junction box and reconnect the wire.
3.
Close the center fan bank in the cold aisle of the affected sensor.
Chilled water supply and return header drain pan sensors
The HP POD 20c includes three heat exchanger condensate drains. One drain pan sensor is located in the
drain tray below each set of heat exchangers.
Three sensors are also located in the chilled water supply and return header drain pans, one in each of the
corresponding cooling zones.
Removing the chilled water supply and return header drain pan sensor
1.
Follow the sensor wire to the associated satellite box. Disconnect the wire from the satellite box terminal
and note the wire location.
2.
Pull the wire through from the satellite box to the sensor location, and then remove the sensor.
Replacing the chilled water supply and return header drain pan sensor
1.
Position the sensor in the main header drain pan.
