Troubleshooting - MSA Chillgard RT Instruction Manual

Troubleshooting Guidelines
Table B-3. Troubleshooting Guidelines
SYMPTOMS POSSIBLE CAUSES
Alarms do not Chillgard RT
activate Refrigerant Monitor
alarms not enabled or
communication is lost
Inoperative
processor board
Trouble LED Loss of communication
flashes
Power LED Power fault
not ON
Trouble LED Relay trouble or
ON controlling Chillgard
RT Refrigerant Monitor
in Trouble state
Obtaining Replacement Parts
To obtain replacement parts, address the order or inquiry to:
MSA Corporate Center
1000 Cranberry Woods Drive
Cranberry Township, PA 16066
or call, toll-free, 1-800-MSA-INST.
Table B-4. Replacement Parts
ITEM
Relay Board (PCB)
Power Supply Board (PCB)
Processor Board (PCB)
CORRECTIVE ACTION
Enable alarms at the Chillgard RT
Refrigerant Monitor
Check wiring
Check power supply
Replace processor board
Check wiring between Chillgard RT
Refrigerant Monitor and Relay Module
Check power wiring or power supply
Check wiring in the Chillgard RT Relay
Module
Check wiring, power supply and fuse
Check relay and relay wiring within
Chillgard RT Relay Module
PART NO.
490558
655116
710392
B-14