Compon
ent
Item (on the Basis of
Monthly Maintenance)
Troubleshooting
Electric
heater
Start the indoor unit, choose
Maint > Diagnostic Mode >
Enter from the main screen,
and set Electric heater to On.
Check that the electric heater
generates heat.
NOTE
To avoid burns, do not touch the
electric heater surface with bare
skin.
Replace the electric heater by
referring to section 6.5.8 Replacing
Electric Heater.
6.2.6 Yearly Maintenance
Table 6-5 lists yearly maintenance items for the indoor unit.
Calculate the total cooling capacity and total server load of running indoor units.
If the total load exceeds 80% of the total cooling capacity of the smart cooling
product, Huawei recommends increasing the number of smart cooling products.
Table 6-5 Yearly maintenance checklist
Compon
ent
Item (on the Basis of
Quarterly Maintenance)
Troubleshooting
Sensors 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%,
calibrate or replace the humidity
and temperature sensor. For the
calibration method, see the 4.6.2.5
Calibrating a Sensor.
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.
NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm Width) 6 System Operation and Maintenance
Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd. 159
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