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VR8304 INTERMITTENT PILOT COMBINATION GAS CONTROL
5 69-0625—03
Fig. 7. VR8304 wiring connections in an intermittent ignition system with S86.
Fig. 8. VR8304 wiring connections in intermittent ignition system with S8600.
2
S86 MODULE
24V
(1) (GND)
MV
GND
(BURNER)
PILOT GAS
SUPPLY
PILOT BURNER
GROUND
Q345, Q346, Q348,
Q362, Q381
PILOT BURNER/
IGNITER-SENSOR
THERMOSTAT
OR CONTROLLER
PV/MV
PV
MV
PV/MV
PV
L1
(HOT)
(HOT)
L2
1
4
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
ALTERNATE LIMIT CONTROLLER LOCATION.
MAXIMUM CABLE LENGTH 3 FT (0.9M).
CONTROLS IN 24V CIRCUIT MUST NOT BE IN GROUND LEG TO TRANSFORMER.
2
3
4
1
LIMIT
CONTROLLER
AIR PROVING
SWITCH
COMBUSTION
AIR BLOWER
MOTOR
L2
L1
3
M18851
24V (2)
GAS CONTROL
TERMINALS
COMBUSTION
AIR BLOWER
RELAY
L1
(HOT)
L2
THERMO-
STAT
1
LIMIT
CONTROLLER
2
4
MV MV/PV PV
GND
(BURNER)
24V
GND
24V TH-W
VENT
DAMPER
PLUG
SPARK
S8610F,H
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
ALTERNATE LIMIT CONTROLLER LOCATION.
CONTROLS IN 24V CIRCUIT MUST NOT BE IN GROUND LEG TO TRANSFORMER.
REMOVE PLUG ONLY IF USING VENT DAMPER. FUSE BLOWS ON STARTUP WHEN PLUG IS REMOVED
AND VENT DAMPER WIRING HARNESS IS INSTALLED; THEN MODULE WILL OPERATE ONLY WHEN VENT
DAMPER IS CONNECTED.
1
2
3
4
M1507
WIRING
HARNESS
D80D VENT
DAMPER
PILOT
BURNER
GROUND
PV
PV/MV
MV
IGNITER-
SENSOR
VR8304
COMBINATION
GAS CONTROL
3