Huawei NetCol5000-A - Replacing the Differential Pressure 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.
162
Figure 5-7 Performance maintenance
Step 6 Tap Startup on the home screen. Ensure that the air conditioner is running normally without
any alarms.
----End
5.4.3 Replacing the Differential Pressure Switch
Prerequisites

The differential pressure switch needs to be replaced.

A spare differential pressure switch of the same model is available and functional.

Tool: Phillips screwdriver
Context
The differential pressure switch 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 Remove the pressure inlet tube, as shown by (1) in Figure 5-8.