Replacing A Compressor - Huawei NetCol5000-A050 User Manual

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual (1350 mm Depth)

11.15 Replacing a Compressor

Prerequisites
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Procedure
● Reclaim or dispose of the refrigerant in accordance with local laws and
regulations. During the reclaim process, the R410A refrigerant composition may
change. Therefore, you are not advised to refill the reclaimed R410A refrigerant
to the cooling system.
● Do not hold the suction and discharge vents when moving the compressor.
● When replacing a compressor, avoid skin contact with the refrigerant or
lubricant to prevent frostbite or burns.
● Do not tilt the compressor during replacement to prevent lubricant leakage.
● Install a new compressor immediately after you remove the rubber plugs of
suction and discharge vents to prevent the moisture intake.
Step 1 Open the rear door and remove the air filter.
Step 2 Tap Shutdown on the home screen of the indoor unit display module, and turn
off the active power switch QF1, standby power switch QF2, and drive switch QF3.
Exercise caution because the device is still energized after it is shut down on the
home screen of the display module.
Step 3 Reclaim the refrigerant and ensure that the system has no pressure.
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2.
Issue 04 (2022-12-15)
A compressor needs to be replaced.
A spare compressor of the same model is available and functional.
To replace the compressor, you also need to replace the filter dryer.
Recommended materials: Phillips screwdriver, two 45# adjustable wrenches,
45# and 50# torque wrenches, 13# and 30# solid wrenches or socket
wrenches, new compressor, dryer filter, refrigerant reclaiming device,
refrigerant charging device, R410A refrigerant
NO TICE
NO TICE
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
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