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NSWERING AN
ALARM
Series 1 Portable Chillers, TIC Control UGH016/0500
6-4
TROUBLESHOOTING
When an alarm condition occurs, the alarm light on the con-
trol panel lights. It stays lit until the alarm condition is cor-
rected. If you have the optional audible alarm, pressing the
Enter button silences the audible alarm.
To find out what is causing the alarm, check the indicator
lights on the control panel for the pump and compressor sta-
tus. If the pump and compressor are both off, check the water
tank level, flow valves, and the pump. If the pump is on and
the compressor is off, check the compressor, suction pressure
and discharge pressure.
Alarm Condition
Low Water Tank Level
Flow Fault
Pump Overload
Compressor Overload
High Discharge Pressure
Low Suction Pressure
Description
The water level in the pump tank is low.
There is no flow of the process fluid at the
pump discharge.
There is a high amperage condition; the
pump is drawing too much current.
There is a high amperage condition; the
compressor is drawing too much current.
The refrigerant pressure, as measured at the
compressor outlet is high.
The refrigerant pressure, as measured at the
inlet of the compressor is low.
Refer to the Troubleshooting tables and the wiring diagrams to
correct the alarm condition.
Pump
Status
OFF
OFF
OFF
ON
ON
ON
Compressor
Status
OFF
OFF
OFF
OFF
OFF
OFF