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Alarm
High Discharge
Pressure, cont’d
Possible cause
Compressor discharge
valve closed.
Overcharged with refrig-
erant.
Faulty water regulating
valve.
Faulty pressure switch.
Solution
Open valve.
See Checking the Refrigerant
Charge in the Maintenance
section.
Repair or replace the valve.
See Checking the Pressure
Switches, in the
Troubleshooting section.
MECHANICAL
CONDITIONS
CONT’D
Series 1 Portable Chillers, TIC Control UGH016/0500
6-12
TROUBLESHOOTING