FusionModule1000A40 IT Solution
Maintenance Guide (2016.05, AI Version)
3 Maintenance
Issue 04 (2018-01-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
11
Item
Method
Expected
Result
Troubleshooting
air-cooled
precision
air
conditioner
s
The air filters
are not
damaged or
misshapen.
If an air filter is damaged or
misshapen, replace air filters for a
20 kW air-cooled precision air
conditioner.
Screws
securing the
compressor
of the 20
kW
air-cooled
precision
air
conditioner
Check screws
securing the
compressor.
The
compressor
screws are
secure.
If a compressor fan screw is loose,
tighten the screw.
Service
valves of
the 20 kW
air-cooled
precision
air
conditioner
s
Check the
compressor service
valves.
The
compressor
service valves
have no oil
stains.
If a compressor service valve is
covered by oil stains, clean the oil
stains.
Compressor
running
sound of
the 20 kW
air-cooled
precision
air
conditioner
Listen to the
compressor
running sound.
No abnormal
noise is
generated.
If the compressor generates
abnormal noise, replace the
compressor by following
instructions in
NetCol5000-A 20 kW
Air-Cooled In-Row Precision Air
Conditioner User Manual
.
Evaporators
of the 20
kW
air-cooled
precision
air
conditioner
s
Check the
evaporators.
No foreign
matter exists
on the
evaporator
surfaces.
If an evaporator is covered by
foreign matter, clean the foreign
matter.
Refrigerant
pipes of the
20 kW
air-cooled
precision
air
conditioner
s
Check the
refrigerant pipes.
The refrigerant
pipes do not
leak, are not
corroded, and
are properly
wrapped with
thermal
insulation
foam.
In the case of pipe leakage, pipe
corrosion, or thermal insulation
foam damage, repair the leakage
and corrosion, and rewrap the
thermal insulation foam.