NetCol5000-A 42 kW Air Cooled In-row Precision Air
Conditioner
User Manual
5 Operation and Maintenance
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
float are loose or
damaged.
2. The high float is faulty or
stuck.
3. The condensate pump is
faulty, or the drainage
capacity decreases.
4. The pipeline or the
internal drainpipe is
blocked or frozen.
high float.
2. Maintain or replace the
high float or clear the
obstacles.
3. Reference to the solutions
for the a041 cond pump
fault alarm.
4. Clear the internal
drainpipe.
1. The comp is in lack of
oil.
2. The refrigerant leaks.
1. Fill oil to the comp.
2. Check for any leakages.
Fill refrigerant after
maintenance or
replacement.
The ambient temperature is
higher than the upper alarm
threshold.
Maintain or replace the
condensate pump. Tap
Maint > Performance
Maint to clear the
accumulated runtime.
1. The load is low.
2. The ambient humidity is
high.
3. The T/H sensors are
located in inappropriate
position.
4. The high humidity alarm
threshold is
inappropriate.
5. The temp displayed is
different from the actual
temp.
1. Please consult Huawei
technical support.
2. Check the ambient
humidity.
3. Adjust the position of the
T/H sensors.
4. Adjust the high humidity
alarm threshold.
5. Calibrate or replace the
abnormal T/H sensors.
1. The ambient humidity is
low.
2. The T/H sensors are
located in inappropriate
position.
3. The low humidity alarm
threshold is
inappropriate.
4. The temp displayed is
different from the actual
temp.
1. Check the ambient
humidity.
2. Adjust the position of the
T/H sensors.
3. Adjust the low humidity
alarm threshold.
4. Calibrate or replace the
abnormal T/H sensors.
The comp driver is faulty for
multiple times, or the faulty
lasts for a long time.
Maintain or replace the comp
driver and tap Maint >
Performance Maint to clear
the accumulated runtime.
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