Replacing A Differential Pressure Switch - Huawei NetCol5000-A050 User Manual

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual (1350 mm Depth)
Step 5 Apply sealant on the outer side of the air valve connected to the pipe nut.
Step 6 Install the new high pressure switch and connect cables.
Step 7 Power on the device.
Step 8 Install the air filter and close the rear door.
Step 9 After startup, check that the smart cooling product is running properly and no
alarm is generated.
----End

11.12 Replacing a Differential Pressure Switch

Prerequisites
●
●
●
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 differential pressure switch.
1.
2.
3.
Figure 11-12 Removing a differential pressure switch
Step 4 Set the value of the new differential pressure switch to 250 Pa, install the new
differential pressure switch, connect cables, and install the pressure inlet tube.
Issue 04 (2022-12-15)
A differential pressure switch needs to be replaced.
A spare differential pressure switch of the same model is available and
functional.
Tool: Phillips screwdriver
NO TICE
Remove the pressure inlet tube.
Remove the screws from the top cover of the differential pressure switch and
cable screws, and disconnect the cables.
Remove the four screws and remove the differential pressure switch.
Copyright © Huawei Digital Power Technologies Co., Ltd.
11 Component Replacement
169