HP Performance Optimized Datacenter 20c Maintenance And Service Manual page 54

Removing the humidifier
Hold the drain button on the humidifier exterior until the humidifier cylinder drains completely.
1.
Press the power button on the outside of the humidifier to power down the humidifier.
2.
Close the water supply isolation valve on the HP POD 20c exterior.
3.
Disconnect the water supply line to the humidifier on the HP POD 20c exterior to relieve the water
4.
pressure.
Open and danger tag the associated circuit breaker in the ECS cabinet. The circuit breakers are
5.
identified on the panel schedule.
Remove the four screws on the corners of the humidifier cover (1), and then remove the cover (2).
6.
Locate the power board and disconnect the two internal electrical wires.
7.
Disconnect the drain (1).
8.
Disconnect the humidifier from the water supply line (2).
9.
Disconnect and remove the external electrical wiring from the housing (3).
10.
Removal and replacement procedures 54