Huawei NetCol5000-A User Manual page 178

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
Alar Alarm
Alarm
m Severit
ID y
a057 Comp Major
dischar
ge HP
a058 Comp Critical
dischar
ge HP
lock
a059 Suction Major
pres
sensor
fault
Issue 13 (2019-01-15)
Default
Impact
Value
4.25 The alarm
MPa is
generated
, and the
compress
or shuts
down.
4.25 The alarm
MPa is
generated
, and the
compress
or is
locked.
Can not
start the
locked
compress
or.
N/A The alarm
is
generated
.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Cause
1. The power supply to the
outdoor unit is lost, or
phase is open or error.
2. The on/off signal cables
of the outdoor unit are
disconnected.
3. The condenser fins are
blocked.
4. The outdoor unit or unit
driver is damaged.
5. The press displayed is
different from the
actual press.
6. The solenoid valve is
faulty.
7. The refrigerant is
overfilled.
The a057 comp discharge
HP alarm is generated
frequently.
1. The cables to the press
sensor are loose or
damaged.
2. The press sensor is
faulty.
Solution
1. Check the power
supply of the outdoor
unit.
2. Check the on/off
signal cables of the
outdoor unit.
3. Clean the condenser
fins.
4. Maintain or replace the
outdoor unit or unit
driver.
5. Calibrate or replace
the press sensor.
6. Maintain or replace the
solenoid coil or the
solenoid valve.
7. Decrease certain
amount of refrigerant.
Reference to the solutions
for the a057 comp
discharge HP alarm.
1. Check the cables to the
press sensor.
2. Replace the press
sensor.
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