Справочник Пользователя для Sterling 882.93092.01
GP Series Portable Chillers
Chapter 6: Troubleshooting
55 of 90
Auxilliary Alarm
41 SC/W This alarm is configurable
Low Suction Pressure at Startup
42
CC
Parameter set too short for
remote condenser installation
Adjust parameter for length of
time to build suction pressure
Refrigerant amount too low
Contact Customer Service
For Units with a Tempered Loop
To ProcTemperature Sensor
To ProcTemperature Sensor
Failure
43
PC
Loose or broken sensor wire
Verify wiring of temperature
sensor at sensor and terminal
block of controller
Process High Temp Fault
44
W
Process heater on
Verify heater contactor
operation
Process cooling valve off
Verify cooling valve operation
Process High Temp Warning
46
W
Process heater on
Verify heater contactor
operation
Process cooling valve off
Verify cooling valve operation
Process Low Temp Fault
48
W
Process heater off
Verify heater contactor
operation
Process cooling valve on
Verify cooling valve operation
Process Low Temp Warning
50
W
Process heater off
Verify heater contactor
operation
Process cooling valve on
Verify cooling valve operation
Pump 2 No Flow
52 SC/W
Optional process flow switch
failure
Verify operation of flow switch.
Process valves closed
Verify operation of process
valves and adjust as necessary
CC = Compressor Critical
SC = System Critical
PC = Process Critical W = Warning
Alarm Name
#
Type Possible Cause
Solution
Pump 2 Overload
53 SC/W
Motor circuit protector open
Verify motor circuit protector
operation. Verify motor wiring
and amp draw while under load.
Pump flow rate in excess of
capacity
Verify system valves are
operational and properly set.
Contact customer service or
sales if pump is sized too small
for application.
High Temp Safety Switch
54
PC
Heater failure
Verify operation of heater and
cooling valve. .
Cooling Valve failure
Verify wiring at cooling valve
and at terminal bloc
Sensor failure
Replace sensor if necessary.
Phase Monitor Fault
55
SC
Unit wired incorrectly
Reverse two wires at line-side
of power switch on electrical
panel.
Loss of phase during
operation
Verify sensor wiring at sensor
and at terminal bloc.
Sensor failure
Replace sensor if necessary.
From Proc Sensor Failure
56
W
Sensor wires loose from
controller terminal block
Verify wiring at sensor and at
terminal block. y.
Sensor wires broke between
sensor and controller terminal
block.
Replace sensor if necessar
Non-Controller Related Issues
Problem
Possible cause
Solution
Unit does not run.
No power.
Check main disconnect, fuses, wiring,
and power lead to unit.
Wrong voltage supplied to unit.
Voltage must be within plus or minus
10% of nameplate rating.