Huawei NetCol5000-A050 User Manual page 280

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual
(4) Hold hoop
Procedure
Step 1 Tap Shutdown on the controller home screen.
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 Turn off the active power switch QF1, standby power switch QF2 (you do not need
to turn off QF2 for the model with a single power supply), and drive switch QF3.
Step 4 Recycle the refrigerant from the low-pressure needle valve and discharge pipe
needle valve to ensure that there is no pressure in the system. (If a low
temperature component is used, recycle the refrigerant from the liquid pipe needle
valve, low-pressure needle valve, and discharge pipe needle valve.)
Step 5 Remove the filter dryer, as shown in
● Filter dryer replacement requires the collaboration of two persons.
● After removing the filter dryer, immediately seal the pipe to ensure that the
system is clean and moisture does not enter the pipes.
Figure 11-26 Removing a filter dryer
Issue 08 (2021-09-17)
NO TICE
NO TICE
Copyright © Huawei Technologies Co., Ltd.
(5) Filter dryer
Figure 11-26.
11 Parts Replacement
270