GP Series Portable Chillers Troubleshooting

CC = Compressor Critical	SC = System Critical			PC = Process Critical	W = Warning
Alarm Name	#	Type	Possible Cause		Solution
			MCP Failure		Allow the compressor to cool
					down. If the compressor does
					down. If the compressor does
Compressor Fault	1	CC	Compressor module has failed		not restart, disconnect power
Compressor Fault	1	CC	Compressor module has failed		and verify operation of the
					MCP internal module. Replace
					if necessary.
			Sensor Failure		Check the wiring connection at
Discharge Pressure Sensor Failure	2	W	Electrical connection at		Check the wiring connection at
Discharge Pressure Sensor Failure	2	W	sensor open		the sensor, and at the controller.
			Electrical connection at		If necessary replace sensor.
			controller open		Allow the fan to cool down. If
			Internal fan motor overload		Allow the fan to cool down. If
Fan Overload	3	CC	Internal fan motor overload		the fan does not restart when
Fan Overload	3	CC	tripped		called upon by controller,
					replace fan motor.
					Locate the drive and write
			Drive has detected internal		down the fault code shown on
VFD Fault	4	CC	Drive has detected internal		the display of drive. Contact
			fault		customer service for assistance.
			Dirty air cooled condenser or		Clean filter or condenser
			inlet filter
			Dirty water cooled condenser		Clean condenser or verify
			or condenser valve failure		operation of condenser valve
			Condenser fan overload		See Fan Overload Fault
High Discharge Pressure Fault	5	CC	Condenser fan VFD fault		See VFD Fault
High Discharge Pressure Fault	5	CC	water temperature too high		removal capacity.
			Ambient air or condenser		Verify supply temperature or air
			Too much refrigerant in		Contact Customer Service for
			system.		assistance
			Liquid line valves closed.		wiring on controller
					Verify operation of valve and
			Discharge pressure switch		See Discharge Pressure Sensor
			failure		Failure
			Dirty air cooled condenser or		Clean filter or condenser
			inlet filter
			Dirty water cooled condenser		Clean condenser or verify
			or condenser valve failure		operation of condenser valve
			Condenser fan overload		See Fan Overload Fault
High Discharge Pressure Switch	6	CC	Condenser fan VFD fault		See VFD Fault
High Discharge Pressure Switch	6	CC	water temperature too high		removal capacity.
			Ambient air or condenser		Verify supply temperature or air
			Too much refrigerant in		Contact Customer Service for
			system.		assistance
			Liquid line valves closed		Verify operation of valve and
			Liquid line valves closed		wiring on controller
			Discharge pressure switch		See Discharge Pressure Sensor
			failure		Failure
High Suction Pressure Fault	7	CC	From Process fluid		Verify flow through system.
High Suction Pressure Fault	7	CC	temperature too high		Make corrections as necessary.
			temperature too high		Make corrections as necessary.
CC = Compressor Critical	SC = System Critical			PC = Process Critical	W = Warning
CC = Compressor Critical	SC = System Critical			PC = Process Critical	W = Warning
Alarm Name	#	Type	Possible Cause		Solution
			Ambient air or condenser		Verify ambient air temperature
			Ambient air or condenser		and air flow or condenser inlet
Low Discharge Pressure Fault	8	CC	water temperature too low		and air flow or condenser inlet
Low Discharge Pressure Fault	8	CC	water temperature too low		water temperature.
			Too little refrigerant in		Contact customer service for
			system.		service call
GP Series Portable Chillers	Chapter 6: Troubleshooting				51 of 90

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Sterling 882.93092.01 manual GP Series Portable Chillers Troubleshooting

Models: 882.93092.01

GP Series Portable Chillers

Chapter 6: Troubleshooting

882.93092.01 specifications