Delta RowCool HCH1CB0, User Manual, Page: 52 / 128

4 8
InfraSuite RowCool Precision Cooling –
Chilled Water
Chapter 7 : Troubleshooting
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System Troubleshooting:
No.
Abnormal
phenomenon
Possible cause Elimination method
1 The fans cannot
start. The power supply is
abnormal. Make sure the input voltage is within the
permissible range, the circuit breaker or
switch is set at
ON , and the cooling unit is
correctly grounded.
The fans are abnormal. Make sure that each fan wiring is normal
and change the abnormal fans if necessary.
2 The cooling unit
cannot start. The input voltage is
abnormal. 1) Make sure the input voltage is within the
permissible range, the circuit breaker or
switch is set at
ON , and the cooling unit
is correctly grounded.
2) If the voltage and the other things are
normal, contact service personnel to see
if the unit setting is wrong.
The EPO is triggered.
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the middle position. Adjust the handle down
to the
OFF position and then lift it to the ON
position and supply the power.
The heater protector is
triggered. Use a multi-meter (short circuit is normal)
to inspect if the over-temperature protector
is triggered. If it is triggered, contact service
personnel to carry out reset (the heater
should be removed). After reset, confirm if
the unit operates normally.
3 Forgot the
password? Forgot the user pass-
word or admin pass-
word? Contact service personnel.