Huawei NetCol8000-E220 User Manual page 139

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Before performing any operation on the smart cooling product, disconnect the
power supply.
Table 6-6 Troubleshooting of common faults
Symptom
Air leakage
Water leakage
The water pan is not
properly drained.
The fan is not properly
running.
The air volume is
excessively large.
The motor is burnt.
Issue 06 (2020-08-19)
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6 System Operation and Maintenance
Possible Cause
The connection nut is
loose due to long-
distance transportation.
The smart cooling
product is deformed
after being improperly
transported or installed.
Excessively large air
volume causes the water
to move out.
The base is not properly
installed.
The drainpipe does not
have a water trap or
does not meet the
requirements.
The fan bearing is worn
out.
The fan blade is
interfered with the shell.
The return air damper is
shaking.
There are foreign
matters.
The external static
pressure is excessively
small (the air duct is
excessively short).
The rotational speed is
too high.
The motor is overloaded.
Solution
Tighten the nut.
Adjust the installation
position of the smart
cooling product.
Adjust the air volume
and add a water pan.
Level the base.
Install or adjust the
water trap.
Repair or replace the
bearing.
Adjust the fan blade.
Adjust the return air
damper.
Clear the foreign
matters.
Rebalance the air
volume and air pressure.
Adjust the voltage again.
Balance the air volume
and replace the motor.
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