Replacing A Pressure Switch Or Pressure Sensor - Huawei NetCol5000-A050 User Manual

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual (1350 mm Depth)

11.11 Replacing a Pressure Switch or Pressure Sensor

The procedure for replacing a high pressure sensor or low pressure sensor is
similar to that of replacing a high pressure switch. The following describes how to
replace a high pressure switch.
Prerequisites
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Procedure
Step 1 Open the rear door and remove the air filter.
Step 2 Tap Shutdown on the home screen of the display module, and turn off the active
power switch QF1 and standby power switch QF2.
Exercise caution because the device is still energized after it is shut down on the
home screen of the display module.
Step 3 Remove the cables from the high pressure switch.
Step 4 Secure the pipe nut using an adjustable wrench, and loosen the adjustable nut
using another adjustable wrench until the high pressure switch is removed.
Figure 11-11 Removing a high pressure switch
(1) Pipe nut
Exercise caution when removing the high pressure switch because a small amount
of refrigerant will be sprayed when you remove the switch.
Issue 04 (2022-12-15)
A high pressure switch needs to be replaced.
A spare high pressure switch of the same model is available and functional.
Tools: gloves, two adjustable wrenches, thread sealant
NO TICE
NO TICE
Copyright © Huawei Digital Power Technologies Co., Ltd.
11 Component Replacement
(2) Adjustable nut
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