Technical information

Portable Chillers UGH024/1103
6-32 TROUBLESHOOTING
PLC CONTROL
ALARM
CONDITIONS
Alarm
Comp 1 Rotation
Error alarm
Possible cause
Compressor 1 is wired
incorrectly.
High pressure transducer
is faulty.
Solution
Shut off chiller supply voltage.
Switch any two leads:
l at compressor if it was
replaced.
l at main terminal block if
new unit installation.
Turn chiller on.
See Checking the Pressure
Transducer, in the
Troubleshooting section.