Johnson Controls G77 Series Installation Sheets Manual page 9

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Pilot Burner
Assembly
Main Burner
Ground
Pilot
Gas Supply
GROUND
5
24 V
LED
THS 2
PV 1
MV 3
SENSE 4
Ignition Control
Figure 5: Wiring Diagram for Separate Spark/Sense
with Vent Damper
Pilot Burner
Assembly
Main Burner
Ground
Pilot
Gas Supply
GROUND
5
24 V
LED
THS 2
PV 1
MV 3
SENSE 4
Ignition Control
Figure 6: Wiring Diagram for Separate Spark/Sense
GG77x Intermittent Pilot Ignition Controls Technical Bulletin
Flame Sensor
Pilot
Main
Valve
Valve
Thermostat
Limits in Thermostat
Flame Sensor
Main
Pilot
Valve Valve
without Vent Damper
Vent Damper System
Vent Damper
Wiring Harness
Power
Supply
Transformer
Line Only
Power
Supply
Thermostat
Transformer
Limits in Thermostat
Line Only
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