Huawei NetCol5000-A - Replacing the Humidifier Pump

NetCol5000-A 42 kW Air Cooled In-row Precision Air
Conditioner
User Manual
5 Operation and Maintenance
Issue 01 (2017-07-27)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
186
5.4.9 Replacing the Humidifier Pump
Prerequisites

The humidifier pump needs to be replaced.

A spare humidifier pump of the same model is available and functional.

Tools: Phillips screwdriver, flat-head screwdriver.
Context
The humidifier pump can be maintained only from the rear door.
Procedure
Step 1 On the controller home screen, tap Shutdown, and turn off the air conditioner switch in the
PDC.
Exercise caution because the device is still energized after it is shut down on the controller
home screen.
Step 2 Open the rear door and remove the air filter.
Step 3 Cut the cable ties securing the humidifier pump cable and remove the terminals.
Step 4 Remove the screws that secure the humidifier pump fastener using a Phillips screwdriver, as
shown in Figure 5-36, and pull out the humidifier pump and the fastener.
Step 5 Remove the hose clamps at the water inlet and outlet ports of the humidifier pump and on the
humidifier pump using a flat-head screwdriver, and remove the water inlet and outlet pipes, as
shown in Figure 5-36.