Delta RowCool HCH1CD0, Руководство пользователя, Страница: 50 / 60

46
InfraSuite RowCool Precision Cooling –
Chilled Water
No.
Abnormal
phenomenon
Possible cause Elimination method
12
The two-way
ball valve has no
response.
The actuator is not correctly
connected.
Re-set the actuator.
13
It is unable to get
on-line via the
Modbus protocol.
The RS232 or RS485
connector is not correctly
connected.
Re-connect the connector.
The Baud rate setting is
abnormal or the ID does not
match.
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System alarm exclusion:
No. Alarm Information Possible cause Elimination method
1 Filter clogged
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foreign matter or are old.
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2
The condensed
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The condensed water pipe
or condensed water pump
is abnormal, or the piping
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Remove the surplus water, inspect
the condensed water pump and
make sure the condensed water
pipe (without bending, damage or
blockage) is correctly connected and
the draining is normal. If upper piping
is adopted, make sure the vertical lift
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3 EPO Active
The EPO button on the
control panel is pressed or
emergency stop is triggered
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Eliminate the abnormality, reset the
circuit breaker of the unit and re-
start the unit to recover the normal
operation.
Emergency stop is triggered
due to leakage
1. Eliminate the abnormality, make
sure the water leakage detector
is dry, reset the circuit breaker of
the unit and re-start the unit to
recover the normal operation.
2. If the water leakage detector
cannot be dried in a short time,
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reset the circuit breaker of the
unit to recover the operation.