NetCol5000-A 42 kW Air Cooled In-row Precision Air
Conditioner
User Manual
5 Operation and Maintenance
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Figure 5-64 Installing an SPD
Step 7 Reinstall the strong-current box, as shown by Step 6 and Step 7 in 5.4.12 Replacing a
Strong-current Box.
Step 8 Power on the device, and ensure that the air conditioner works properly without alarms.
Step 9 Install the air filter and close the rear door.
----End
5.4.19 Replacing the Relay
Prerequisites
The relay, as shown in A Electric Control Box Layout, needs to be replaced.
A spare relay of the same model is available and functional.
Tool: Phillips screwdriver
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 Remove the relay cable, open the buckle on the relay mounting base, and pull out the relay.
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