Huawei NetCol5000-A050 User Manual page 228

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual
(4) Hold hoop
Procedure
Step 1 Tap Shutdown on the home screen of the display module.
Exercise caution because the device is still energized after it is shut down on the
home screen of the display module.
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 Reclaim the refrigerant and ensure that the system has no pressure.
1.
2.
Step 5 Remove the filter dryer, as shown in
● Filter dryer replacement requires the collaboration of two persons.
● After removal, immediately seal the pipe opening to keep the system clean,
and prevent moisture from entering the system.
Issue 13 (2023-08-20)
NO TICE
NO TE
If a refrigerant reclaiming pump is used, the requirements for using the pump must be met.
Connect the refrigerant reclaiming pump to the outdoor unit needle valve and
(if a low temperature component is deployed) the needle valve at the outdoor
unit liquid pipe port of the low temperature component. When the pressure
decreases to the atmospheric pressure and becomes stable, shut down the
refrigerant reclaiming pump.
Connect the refrigerant reclaiming pump to the low-pressure needle valve of
the indoor unit. When the pressure decreases to the atmospheric pressure and
becomes stable, shut down the refrigerant reclaiming pump. Ensure that there
is no pressure in the system and the refrigerant is completely reclaimed.
NO TICE
Copyright © Huawei Digital Power Technologies Co., Ltd.
(5) Filter dryer
Figure 11-25.
11 Parts Replacement
217