Huawei FusionDC1000A - Replacing the High Pressure Switch

Step 7 Install the new dierential pressure switch and the pressure tube, and connect the
cables.
Step 8 Install the air lter and close the rear door.
Step 9 Power on the device and tap Startup on the home screen. Ensure that the smart
cooling product is running normally without any alarms.
----End
4.2.2.7 Replacing the High Pressure Switch
Prerequisites
● The high pressure switch needs to be replaced.
● A spare high pressure switch of the same model is available and functional.
● Tools: gloves, Two adjustable wrenchs, thread sealant
Context
The high pressure switch can be maintained only from the rear.
NO TE
The procedure for replacing a high or low pressure sensor is similar to that for replacing the
high pressure switch.
Procedure
Step 1 On the controller home screen, tap Shutdown, and turn o the smart cooling
product switch in the upstream PDC.
NO TICE
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 lter.
Step 3 Remove the cables from the high pressure switch.
FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario) 4 Parts Replacement
Issue 01 (2021-04-20) Copyright © Huawei Technologies Co., Ltd. 81