Replacing The High Pressure Switch - Huawei FusionDC1000A Maintenance Manual

FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario)
Step 7 Install the new differential pressure switch and the pressure tube, and connect the
cables.
Step 8 Install the air filter 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
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Context
The high pressure switch can be maintained only from the rear.
Procedure
Step 1 On the controller home screen, tap Shutdown, and turn off the smart cooling
product switch in the upstream 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 cables from the high pressure switch.
Issue 01 (2021-04-20)
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
NO TE
The procedure for replacing a high or low pressure sensor is similar to that for replacing the
high pressure switch.
NO TICE
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4 Parts Replacement
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