Parts Replacement - Huawei NetCol8000-C070 User Manual

NetCol8000-C(070, 130, 190) In-room Chilled Water
Smart Cooling Product
User Manual
Symptom
The
humidification
capacity is
insufficient.
The air filter is
blocked.
The pressure
difference cannot
be controlled.
The motorized
damper does not
operate.
The direct free-
cooling plenum
does not operate.
The air filter of
the fresh air unit
is blocked.

6.4 Parts Replacement

Issue 07 (2021-12-30)
Possible Cause
The cable to the water
inlet solenoid valve is
incorrectly connected.
The wet film humidifier
wears out and
deteriorates.
The air filter has been
used for too long and
become dusty.
The differential pressure
switch is faulty.
The differential pressure
sensor is faulty.
The pressure tube is
blocked or over-bent.
The actuator cable is
not properly connected.
The actuator is faulty
and does not operate.
The air damper is stuck.
The actuator cable is
not properly connected.
The actuator is faulty
and does not operate.
The air damper is stuck.
The air filter has been
used for too long and
become dusty.
The differential pressure
switch is faulty.
Copyright © Huawei Technologies Co., Ltd.
6 Maintenance
Troubleshooting
Reconnect the cable.
Replace the wet film humidifier.
Replace the air filter.
Replace the differential pressure
switch.
Replace the differential pressure
sensor.
Replace the pressure tube or
route the pressure tube again.
Check and reconnect the cable
to the motorized damper
actuator.
Replace the actuator.
Replace the air damper.
Check and reconnect the cable
to the air damper actuator.
Replace the actuator.
Replace the air damper.
Clean or replace the air filter.
Replace the differential pressure
switch.
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