Technical information

TIC C
ONTROL
ALARM
CONDITIONS
Alarm
High Discharge
Pressure (pump is
running, compressor
is off) PSH must be
manually reset by
depressing reset but-
ton on top of switch
in chiller and
acknowledge on face
of controller
Possible cause
Clogged/dirty air-cooled
condenser.
Blocked air flow to air-
cooled condenser.
Low condenser water
flow or water too warm
to water-cooled con-
denser.
Blocked condenser water
line or valve closed.
Water-cooled condenser
fouled.
Solution
Clean the coil. See Cleaning
the Air-cooled Condenser, in
the Maintenance section.
Move chiller or unblock air
passageway.
Check required flow; see
Specifications in the
Description section.
Unblock line; open valve.
Clean the condenser. See
Cleaning the Air-cooled
Condenser, and Cleaning the
Evaporator or Water-cooled
Condenser, in the Maintenance
section.
UGH024/1103 Portable Chillers
TROUBLESHOOTING
6-11