Kw Air-Cooled Precision Air Conditioner Alarms - Huawei FusionModule 1000B Maintenance Manual

FusionModule1000B Air-Cooled IT Solution
Maintenance Guide

5.17 20 kW Air-Cooled Precision Air Conditioner Alarms

Fault
Category
20 kW
air-cooled
precision
air
conditione
r alarms
Issue 02 (2017-01-10)
For other alarms generated for the 35 kW air-cooled precision air conditioner, see the air conditioner
user manual.
Alar Symptom
m
Sever
ity
Major The compressor does
not work.
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Possible Troubleshooting
Cause
The device Check whether an alarm
generates a fault is generated. If yes,
alarm. handle the alarm by
referring to the alarm
reference list.
The compressor Check whether cooling is
does not need to required on the controller
start. home page.
The power Check that the
supply for the compressor input power
compressor is is normal. Remove the
faulty. X115 compressor
terminals, measure the
terminal voltages at the
connection surfaces. If
voltages between
terminals 1 and 2, 2 and
3, and 1 and 3 are within
± 10% of the rated
voltage, the input power
supply is normal.
Check the compressor
power supply status. If
the power supply is
faulty, check whether the
power supply cable is
abnormal, and whether
the compressor power
supply circuit breaker is
off or abnormal. If a fault
is identified, rectify the
fault and check whether
the abnormality
disappears.
The compressor Replace the compressor
is damaged. by following instructions
in the Replacing the
Compressor section in
the air conditioner user
5 Alarms and Faults
73