Huawei NetCol8000-A045D - Outdoor Unit Routine Maintenance; Monthly Maintenance

Table 8-4 Yearly maintenance checklist
Compon
ent
Item (Quarterly
Maintenance)
Troubleshooting
Sensor Use a high-precision humidity
and temperature sensor to
calibrate the humidity and
temperature sensors inside and
outside the cabinet.
If the temperature deviation is
greater than 1°C or humidity
deviation is greater than 5%, the
T/H sensor must be calibrated or
replaced.
Evaporat
or
The evaporator ns are not
pushed down.
Use a n brush to organize the
ns that are pushed down.
Welding
spot and
needle
valve
Check that the welding spots
and needle valves do not leak
using soapy water, or check
that they are free from oil
stains.
If leaking points are found, retrieve
the refrigerant and weld the
leaking points again. For details,
contact Huawei technical support.
8.3 Outdoor Unit Routine Maintenance
CA UTION
● Perform the troubleshooting with the power o: If an exception is identied
and needs to be handled, you must power o the outdoor unit rst.
● Check and perform the troubleshooting with the power o: Before checking
and exception handling, you must power
o the outdoor unit rst.
● In heavy snow situations, clean up snow from the fan, pipes, electric control
box, and low-temperature component of the outdoor unit in time.
8.3.1 Monthly Maintenance
Table 8-5 Monthly maintenance items
Item
Check that Troubleshooting Remarks
Refrigerant
Pipes
The refrigerant
pipes are secured.
Secure the pipe
support.
Perform the
troubleshooting
with the power o.
All refrigerant pipes
are clean without
leaking and eroding.
Evacuating the
refrigerant, and
repair the leak on
the pipe.
Perform the
troubleshooting
with the power o.
NetCol8000-A(045, 055, 060, 090, 120) In-room Air
Cooled Smart Cooling Product
User Manual 8 Operation and Maintenance
Issue 05 (2020-10-10) Copyright © Huawei Technologies Co., Ltd. 212