54
InfraSuite RowCool Precision Cooling –
Chilled Water
No.
Alarm
Information
Possible cause
Elimination method
12
Flow Meter
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or in bad contact.
Inspect the function of the flow meter and
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13
Fan 1-8 Failed
The # fan is abnormal or in
bad contact.
Inspect if the # fan is blocked or abnormal
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connected.
14
Ball Valve Error
The three-way ball valve is
abnormal.
Inspect if the three-way ball valve is in bad
contact or faulty.
15
Return/ Supply/
Remote# T High
1) The environment
temperature and
humidity are abnormal.
2) The alarm setting is
abnormal.
3) The temperature sensor
is abnormal.
4) The load is too large.
1) Inspect if the environment temperature
and humidity are within the operation
scope.
2) Inspect if the out-of-range alarm setting
is correct.
3) Inspect the temperature sensor function.
4) If the temperature is still too high after
elimi-
nating the above problems, please
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cooling capacity of the cooling unit.
16
Return/ Supply/
Remote# T Low
17
Return/ Supply/
Remote# RH
High
18
Return/ Supply/
Remote# RH
Low
19
Water In T High
7KHWHPSHUDWXUHRUÀRZ
rate of the chilled water
supplied by the chiller is
abnormal.
2) The alarm setting is
abnormal.
,QVSHFWWKHWHPSHUDWXUHDQGÀRZUDWHRI
the chilled water.
2) Inspect if the out-of-range alarm setting
is correct.
20
Water In T Low
21
Water Flow High
22
Water Flow Low
23
Run Over Hours
The periodic maintenance
has not been performed.
To guarantee the normal operation of the
system, carry out the maintenance immedi-
ately.
24
Leak Wire Open
The water leakage detector
is not correctly connected.
Inspect if the water leakage detector is
loose, in bad contact or broken.
25
Remote EPO
The unit receives the
remote system's message
and shuts down.
L e t t h e r e m o t e s y s t e m s e n d ' r e s e t '
command to the unit to recover normal
operation.
NOTE:
If the alarm still exists after the above possible causes are eliminated, please contact
your dealer or customer service.
Summary of Contents for HCH1850
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