MSA Chillgard RT - Troubleshooting

B-14
Troubleshooting Guidelines
Table B-3. Troubleshooting Guidelines
SYMPTOMS POSSIBLE CAUSES CORRECTIVE ACTION
Alarms do not
Chillgard RT
Enable alarms at the Chillgard RT
activate
Refrigerant Monitor
Refrigerant Monitor
alarms not enabled or
communication is lost
Inoperative
Check wiring
Check power supply
Replace processor board
processor board
Trouble LED Loss of communication Check wiring between Chillgard RT
flashes Refrigerant Monitor and Relay Module
Check power wiring or power supply
Check wiring in the Chillgard RT Relay
Module
Power LED Power fault Check wiring, power supply and fuse
not ON
Trouble LED Relay trouble or Check relay and relay wiring within
ON controlling Chillgard Chillgard RT Relay Module
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 PART NO.
Relay Board (PCB) 490558
Power Supply Board (PCB) 655116
Processor Board (PCB) 710392