
44
InfraSuite RowCool Precision Cooling –
Chilled Water
No.
Abnormal
phenomenon
Possible cause
Elimination method
4
The operation
noise is too high.
Foreign matter is attached
to the fans or the fans’ ball
bearings are damaged.
Fans should be cleaned and inspected.
The fan speed is too high.
Check if the unit runs in the force mode or
if the fans are running at full speed. Adjust
the set point or the fan speed accordingly.
There is foreign matter or
impurity in the pipeline.
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piping and clean it if necessary.
5
LCD display is
abnormal and
does not display.
The wiring is wrong.
Inspect if the wiring of the control panel
is correct or re-start the cooling unit if
necessary.
6
The alarm
condition is
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buzzer does not
beep.
The buzzer alarm function is
not enabled.
Use the control panel to enable the
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7
The set point
cannot be
reached.
The fans are old or
abnormal.
Inspect the fans and change abnormal
ones if necessary.
The sensor detection is
abnormal.
Check each sensor.
The PID parameters are
wrong.
Please refer to
4.7 Setting of PID
.
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cooling capacity.
Reduce the heat load or increase cooling
units.
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The coil is blocked.
Carry out the coil washing procedures.
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is too high.
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Error in control module
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The actuator is abnormal.
Repair the actuator.
The heaters are abnormal.
Inspect the heaters.
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replace it if necessary.
Содержание RowCool HCH1CD0
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