Huawei NetCol5000-A User Manual page 149

NetCol5000-A 42 kW Air Cooled In-row Precision Air
Conditioner
User Manual
Alarm
Alarm
ID
a060 Comp
suction LP
a061 Comp
suction LP
lock
a062 Comp
drive
alarm
a063 Comp
drive
comm
failed
Comp
a064
drive lock
Comp
a065
drive DC
Issue 01 (2017-07-27)
Alarm
Impact
Severity
Major The alarm
is
generated,
and the
compresso
r shuts
down.
Critical The alarm
is
generated,
and the
compresso
r is locked
and not
allowed to
be started.
Major The alarm
is
generated,
and the
compresso
r shuts
down.
Critical The alarm
is
generated,
and the
compresso
r shuts
down.
The alarm
Critical
is
generated,
and the
compresso
r shuts
down.
The alarm
Major
is
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Possible Cause
1. The refrigerant leaks.
2. The cables to the press
sensor are loose or
damaged.
3. The pressure sensor
displayed is different
from the actual pressure.
4. The filter dryer is
blocked.
5. The expansion valve is
blocked.
6. The indoor fans are
faulty.
7. The ambient temp is low.
The a060 comp LP alarm is
generated frequently.
1. The comp driver is faulty.
2. The comp is faulty.
1. The cables to the comp
driver are loose or
damaged.
2. The comp driver is faulty.
1. The comp driver is faulty.
2. The comp is faulty.
1. The power supply voltage
is high.
5 Operation and Maintenance
Solution
1. Identify and repair the
leaking point, and refill
refrigerant after
maintenance.
2. Check the cables to the
press sensor.
3. Calibrate or replace the
pressure sensors.
4. Maintain or replace the
filter dryer.
5. Maintain or replace the
expansion valve.
6. Maintain or replace the
indoor fans.
7. Check the ambient temp.
Refer to the solutions for the
a060 comp LP alarm.
1. Maintain or replace the
comp driver.
2. Maintain or replace the
comp.
1. Check the cables to the
comp driver.
2. Maintain or replace the
comp driver.
1. Maintain or replace the
comp driver.
2. Maintain or replace the
comp.
1. Check the power supply
voltage.
2. Maintain or replace the
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