FusionModule1000B Air-Cooled IT Solution
Maintenance Guide
5 Alarms and Faults
Issue 02 (2017-01-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
60
Air-cooled precision air conditioners include 20 kW and 35 kW models. When verifying
parameters, ensure that the initial configuration table of the correct model is obtained.
A high temperature may lead to fire or equipment damage. Therefore, a high temperature
alarm must be immediately handled as instructed by
. This section can be used as a reference only after the temperature
becomes normal.
5.5 Humidity Alarms
Fault
Category
Alar
m
Sever
ity
Symptom
Possible
Cause
Troubleshooting
Humidity
too high
Gener
al
The onsite humidity
is normal.
The T/H sensor
is faulty.
Replace by following
instructions in
Replacing a Polymer
T/H Sensor
The humidity
threshold is not
properly set.
Verify that the
configured temperature
and humidity thresholds
are consistent with the
T/H sensor initial
configuration table in the
initial configuration
parameter manual.
The onsite humidity
is too high.
The load ratio is
too low.
Shut down some air
conditioners.
Humidity
too low
Inform
ation
The onsite humidity
is normal.
The T/H sensor
is faulty.
Replace by following
instructions in
Replacing a Polymer
T/H Sensor
The humidity
threshold is not
properly set.
Verify that the
configured temperature
and humidity thresholds
are consistent with the
T/H sensor initial
configuration table in the
initial configuration
parameter manual.
The onsite humidity
is too low.
The
humidification
function of air
conditioners is
abnormal.
Troubleshoot by
following instructions in
the air conditioner user
manual.