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2nd Ave
7800 Series
installation instructions
Series Relay Modules
Models:
7800 Series
1
19
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Troubleshooting
Flame Signal Measurement
Hold and Fault Message Summary
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7800 SERIES RELAY MODULES
19
65-0229—1
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Contents
Explosion Hazard Can cause serious injury or death
System Checkout
Equipment Recommended
Checkout Summary
Proved Pilot Systems
Flame Signal Measurement
Initial Lightoff Checks
Preliminary Inspection
Direct Spark Ignition Systems
Pilot Turndown Test ALL Installations Using a Pilot
To Eliminate Ignition Interference
Ignition Interference Test ALL Flame Rods
Ignition Spark Response Test ALL Ultraviolet Detectors
Flame Signal With Hot Combustion Chamber All Installations
System Diagnostics
Troubleshooting
Keyboard Display Module Sequence and Status Hold Messages
Main IGN mmss
Pilot IGN mmss
Postpurge mmss
Running on slow ac Reset and sequence the relay module
Fault Code System Failure Recommended Troubleshooting
Hold and Fault Message Summary
Prepurge
Inspect the fan make sure there is no blockage of the air
Prepurge RM7838A
Can cause explosion, serious injury or death
Explosion Hazard
This fault indicates Remove power to the device
Flame amplifier
Unused faults
Relay Module self-test Reset and sequence the relay module
Series Relay Modules
Home and Building Control
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