Huawei NetCol5000-A - Replacing the Switch

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.
208
Step 6 Power on the device and tap Startup on the home screen. Ensure that the air conditioner is
running normally without any alarms.
----End
5.4.16 Replacing the Switch
Prerequisites

The switch QF3 that controls the outdoor unit and compressor or the QF4 that controls
the electric heater, as shown in A Electric Control Box Layout, needs to be replaced.

A spare switch QF3 that controls the outdoor unit and compressor or the QF4 that
controls the electric heater 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 Open the front cover of the switch, as shown by (1) in Figure 5-59.