HP Performance Optimized Datacenter 20c Maintenance And Service Manual page 59

Removing the heat exchanger condensate drain pan sensor
If you are removing a heat exchanger condensate drain pan sensor, do the following:
1.
Inspect the area by removing the center, bottom fan from the center fan bank in the associated zone.
a.
For more information, see "Removing the cooling fan
on page 28)."
To gain additional working space, you might need to remove the cooling fan bank in the associated
b.
zone. For more information, see "Removing the fan bank assembly
assembly" on page 30)."
Follow the sensor wire to the associated satellite box. Disconnect the wire from the satellite box terminal
2.
and note the wire location.
Pull the wire through from the relay to the sensor location, and then remove the sensor.
3.
Replacing the heat exchanger condensate drain pan sensor
Position the heat exchanger condensate sensor in the drain pan.
1.
Route the wire to the associated zone satellite box.
2.
Connect the condensate sensor wire to the appropriate port on the satellite box terminal.
3.
If you are replacing a heat exchanger drain pan sensor, do the following:
4.
("Removing the variable speed IT cooling
("Removing the cooling fan bank
Removal and replacement procedures 59
fan"