6. Connect pipe to gas control inlet and outlet. Use
wrench on the square ends of the gas control. If an adapter
is used, place wrench on adapter rather than gas control.
Refer to Figs. 1 and 6.
WIRING
Follow the wiring instructions furnished by the appli-
ance manufacturer, if available, or use the general instruc-
tions provided below.
All wiring must comply with applicable electrical codes
and ordinances.
Disconnect power supply before making wiring con-
nections to prevent electrical shock or equipment damage.
1. Check the power supply rating on the valve and
ensure it matches the available supply. Install transformer,
thermostat, and other controls as required.
2. Connect control circuit to gas control terminals. See
Figs. 1, 7 and 8.
3. Adjust thermostat heat anticipator to 0.70 rating
stamped on valve operator.
Fig. 7—VR8305 Wiring Connections in S87 Direct
Ignition System.
5 69-0626—2
Fig. 8—VR8305 Wiring Connections in S89C Direct Ignition System.
24V
24V (GND)
S87 CONTROL MODULE
ALARM
VALVE
VALVE
GND
TEMPERATURE
CONTROLLER
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
ALTERNATE LIMIT CONTROLLER LOCATION.
MAXIMUM IGNITER-SENSOR CABLE LENGTH: 3 ft. [.9 m] OR LESS.
3 A REPLACEABLE FUSE.
ALARM TERMINAL PROVIDED ON SOME MODELS.
M9043
MV
MV
L1
(HOT)
L2
1
2
1
2
3
DUAL VALVE
COMBINATION
GAS CONTROL
Q347 IGNITER-SENSOR
BURNER
4
4
5
IGNITER-SENSOR AND
BURNER GROUND
3
5
ALARM, IF USED
HOT SURFACE
IGNITER-SENSOR
VALVE
VALVE (GND)
24V
24V (GND)
S89/S890 HOT SURFACE
IGNITION CONTROL
L2
HSI
L1
HSI
LIMIT
CONTROLLER
BURNER
GROUND
THERMOSTAT
OR CONTROLLER
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED. MAKE SURE L1 AND L2 ARE NOT
REVERSED; THIS WOULD PREVENT FLAME DETECTION.
ALTERNATE LIMIT CONTROLLER LOCATION.
SEN TERMINAL AND Q354 FLAME SENSOR ON D MODELS ONLY.
M1508
L1
(HOT)
L2
1
2
1
2
3
3
3
SEN
Q354 FLAME
SENSOR
MV
MV
VR8305
COMBINATION
GAS CONTROL
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