Fault
Type
Possible Cause
Solution
The pressure loss is
different from the
designed value.
Check whether the resistance of the air
supply duct is too large.
Vibration
Imbalance
Check whether the fan blades are
damaged, polluted, or frozen.
Abnormal
noise
Bearing damage or
wear
Replace the bearing.
Fan blade friction/
collision
Clear foreign matters or dirt in the fan if
necessary.
The fan is operating
in the stall zone
(applicable to an
axial fan).
Check whether the airflow is smooth
(intake/exhaust air damper and air filter).
The concentricity of
the air intake ring is
incorrect (applicable
to a centrifugal fan).
Observe the installation precautions.
Electric Hazards
●
Electrical components can only be operated by professional electricians or
persons familiar with electricity, or under the supervision of an electrician.
●
Comply with five electrical safety regulations.
●
Do not operate when the unit is powered on. Even after the unit is powered
off, the intermediate circuit is still energized. Wait at least 3 minutes.
●
To disconnect electrical connections safely, take other measures if necessary.
●
For all operations on energized parts or circuits, there must always be two
persons present, so that one person can cut off the power supply in the case
of emergency.
●
The ventilation unit can only be connected to a circuit with an omnipolar
isolation switch.
●
Follow the local standards for electromagnetic compatibility of the unit.
●
Periodically check the electrical devices. Tighten the loose connector and
replace the damaged conductor or cable immediately.
Air Filter
●
When the final resistance of the air filter reaches the specified value, clean or
replace the air filter. Air filters are wear parts.
●
Exercise caution when removing a dusty air filter from the metal frame to
avoid polluting the smart cooling product and damaging the filtering
materials.
FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
10 Troubleshooting
Issue 03 (2021-04-20) Copyright © Huawei Digital Power Technologies Co., Ltd.
146