Huawei NetCol5000-A050 User Manual page 185

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual
Item
Indoor
fan
Water pan filter
Open the water pan cover at the front door, and you can see the water pan filter.
Figure 8-1
Issue 08 (2021-09-17)
Expected Result
The liquid sight glass is almost
green, or not totally turns
yellow.
Wear protective gloves and
touch the compressor angle
valve, needle valve, and
welding joints of the
refrigerant pipe to check
whether there are oil stains.
No water exists under the
water pipe or on the thermal
insulation foam.
The refrigerant pipe support is
secure and intact.
The indoor fan guard is not
deformed, and the fan blades
are not damaged.
The indoor fan runs smoothly.
The screws on the indoor fan
are not loose or distorted.
shows how to remove a water pan filter.
Copyright © Huawei Technologies Co., Ltd.
Troubleshooting
If the sight glass completely turns
yellow, water is too much in the
pipe. To solve the problem, empty
refrigerant out of the pipe,
vacuumize the pipe, drain out water,
and then charge new refrigerant.
NOTE
If the sight glass does not obviously turn
green, use a blow drier to blow wind to
the filter until the sight glass is green.
If there is an oil stain, check whether
the suction and exhaust pressure of
the compressor is within the normal
ranges. If the pressure is beyond the
normal range, contact Huawei
technical support.
● If drops of water are evenly
distributed, wipe off them with a
dry cloth.
● If there are large water marks,
close the water inlet sluice and
process the leak points. If the
thermal insulation foam is
damaged or missing, lay out new
thermal insulation foam.
Replace the refrigerant pipe support
and secure it again.
Replace the fan.
Take out the foreign matter.
Tighten the screws using a 10#
socket wrench.
8 Maintenance
175