Alarm Reference - Huawei NetCol5000-A User Manual

NetCol5000-A 42 kW Air Cooled In-row Precision Air
Conditioner
User Manual

5.2 Alarm Reference

Table 5-5
If the Clear icon is displayed on the Details screen, the alarm can be manually cleared by
tapping the Clear button after the fault is rectified. The alarm clearance type (automatic or
manual) varies with precision air conditioners. Alarms can be cleared are a009, a013, a025,
a046, a058, a061, a062, a064, a079, a095, a130, a137, a179, a182, a190.
Table 5-5 Alarm description
Alarm Alarm
ID
a001 Return-air
1 temp
invalid
Return-air
2 temp
invalid
Return-air
a002
HT
a003 Return air
LT
a004 Return-air
2 humid
invalid
a007 Return-air
Issue 01 (2017-07-27)
describes the alarm reference of the NetCol5000-A.
Alarm Impact
Severity
Major The alarm
is
generated.
The alarm
Critical
is
generated.
Warning The alarm
is
generated.
Major The alarm
is
generated.
Major The alarm
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Possible Cause
1. The cables to the T/H
sensor are loose or
damaged
2. The T/H sensor is faulty.
1. The load is high or the
refrigeration capacity is
insufficient.
2. The ambient temp is
high.
3. The return-air HT alarm
threshold is
inappropriate.
4. The temp displayed is
different from the actual
temp.
1. The load is low.
2. The ambient temp is low.
3. The return-air LT alarm
threshold is
inappropriate.
4. The temp displayed is
different from the actual
temp.
1. The cables to the T/H
sensor are loose or
damaged.
2. The T/H sensor is faulty.
1. The cables to the T/H
5 Operation and Maintenance
Solution
1. Remove dirt or water
from the T/H sensor.
2. Maintain or replace the
T/H sensor.
1. Add more air conditioner
units or Consult
Huawei technical
support.
2. Check other causes if the
alarm persists after
startup.
3. Adjust the return-air HT
alarm threshold.
4. Calibrate or replace the
abnormal sensors.
1. Please consult Huawei
technical support.
2. Check other causes if the
alarm persists after
startup.
3. Adjust the
undertemperature alarm
threshold.
4. Calibrate or replace the
abnormal sensors.
1. Remove dirt or water
from the T/H sensor.
2. Maintain or replace the
T/H sensor.
1. Check the cables to the
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