Huawei NetCol5000-A User Manual page 165

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
Compon
ent
Humidifie
r
Electric
heater
6.2.6 Yearly Maintenance
Table 6-5
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.
Issue 13 (2019-01-15)
Item (on the Basis of Monthly
Maintenance)
Start the indoor unit, choose
Maint > Diagnostic Mode >
Enter from the main screen, and
set Humidifier to 50%. Water
injection is smooth.
(Following the preceding step)
Set Humidifier to 0%, and press
the manual water drain button on
the side of the electric control box
to check whether water drainage
is normal. After the check is
complete, set the manual drainage
button on the side of the electric
control box to normal
humidification.
NOTE
1. Ensure that the manual drainage
button on the side of the electric
control box is set to "O: Normal
humidifying" after the check
ends. Otherwise, the humidifier
will not be filled with water when
it is running.
2. If the humidifier cylinder is dirty
and the water level exceeds 4/5
during the quarterly maintenance,
replace the cylinder.
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.
lists yearly maintenance items for the indoor unit.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Troubleshooting
 Check that the water inlet sluice is
open.
 Disconnect the humidifier water
injection hose and clear the blockage
in the hose.
Disconnect the drainpipe from the
device, and use a rubber mallet to knock
the drainpipe to remove foreign matter
or impurities from the drainpipe. Then
remove the water pump and clean up
impurities from the water pump. If the
impurities are too much to be cleared,
replace the water pump.
NOTE
 When installing a pipe, seal screw thread
joints using water sealant and ensure that
no water leaks.
 If the fault persists after the maintenance,
see section 6.4 Troubleshooting
further processing.
Replace the electric heater by referring
to section 6.5.7 Replacing Electric
Heater.
for
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