Huawei NetCol5000-A050 User Manual page 216

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual
Figure 11-11 Angle valve
(1) Angle valve nut
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 electric heating belt.
Step 6 Remove the cover of the connection box and disconnect the compressor power
cables.
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.
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(2) Adjustable nut
11 Parts Replacement
(3) Pipe nut
205