Huawei NetCol5000-A025 - Replacing the Differential Pressure Switch

● Tool: Phillips screwdriver
Context
The
dierential pressure switch can be maintained only from the rear.
Procedure
Step 1 Tap Shutdown on the LCD home screen and turn o the smart cooling product
switch in the PDC.
NO TICE
Exercise caution because the NetCol5000-A is still energized when it is being shut
down over the LCD.
Step 2 Open the rear door and remove the air lter.
Step 3 Use a Phillips screwdriver to remove the two screws that secure the sheet metal
fastener of the dierential pressure switch, and remove the pressure tube, as
shown in Figure 6-6.
Figure 6-6 Removing a dierential pressure switch
Step 4 Remove the dierential pressure switch assembly, unscrew the cover, and
disconnect the cables.
Step 5 Remove the four screws securing the dierential pressure switch, and take out the
faulty
dierential pressure switch.
Step 6 Set the pressure to 100 Pa for the new dierential pressure switch. Install the new
dierential pressure switch and connect cables.
NetCol5000-A025 In-row Air Cooled Smart Cooling
Product
User Manual (300 mm Width) 6 System Operation and Maintenance
Issue 15 (2020-12-10) Copyright © Huawei Technologies Co., Ltd. 230