Delta RowCool HCH1CB0, User Manual, Page: 56 / 128

5 2
InfraSuite RowCool Precision Cooling –
Chilled Water
No.
Alarm
Information
Possible cause Elimination method
5 Fire Active Fire detection is trig-
gered. Inspect the environment and eliminate the
abnormality.
6 Smoke Active Smoke detection is trig-
gered. Inspect the environment and eliminate the
abnormality.
7 Comm Abnormal The CAN-Link port wiring
is wrong or the unit ID is
repeated. Inspect the CAN-Link port wiring and con-
firm that the cooling units connected in
series have independent and non-repeated
IDs.
8 Return/ Supply
Sensor The air return/ supply
sensor is abnormal or in
bad contact. Inspect the function of the air return/ supply
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9 Remote Sensor
1-4 The # remote sensor is
abnormal or in bad con-
tact.
Inspect the function of the # remote sensor
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10 Water In Sensor The chilled water inlet
sensor is abnormal or in
bad contact. Inspect the function of the chilled water inlet
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11 Water Out Sensor The chilled water outlet
sensor is abnormal or in
bad contact. Inspect the function of the chilled water out-
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12 Flow Meter
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-
mal or in bad contact.
Inspect the function of the flow meter and
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13 Fan 1-3 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
T High 1) The environment tem-
perature and humidity
are abnormal.
2) The alarm setting is
abnormal.
3) The sensor is abnor-
mal.
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 sensor function.
4) If the temperature is still too high after
eliminating the above problems, please
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cooling capacity of the cooling unit.
16 Return/ Supply
T Low
17 Return/ Supply
RH High
18 Return/ Supply
RH Low