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GB100W NATURAL OR PROPANE BOILER
INSTALLATION AND OPERATING INSTRUCTIONS
Figure 12: Fenwal/Honeywell Direct Ignition
IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THIS APPLIANCE MUST BE REPLACED,
IT MUST BE REPLACED WITH TYPE 105°C THERMOPLASTIC WIRE OR IT'S EQUIVALENT.
BK
W
BL
BL
BL
BL
CONTROL CENTER
R8285A W/
R8222U RELAY
OR 57-01V18BC3
1
3
64
Y
BK
BK
BK
W
W
BK
W
G
Y
R
C
HI-LIMIT
BL
W
W
BK
W
R
BL
1
115V/1/60
L1 L2
M
115V CIRCULATOR
LOW-VOLTAGE
24V THERMOSTAT
SERVICE
SWITCH
M35
STACK DAMPER
G
W
BK
R
CONNECT STACK DAMPER
WITH MOLEX PLUG AS SHOWN
MOLEX PLUG
MOLEX RECEPTACLE
THERMAL
CUTOFF
SWITCHES
BL - BLUE
BK - BLACK
R - RED
W - WHITE
Y - YELLOW
G - GREEN
24V 115V
40VA
T1
BK
BK
Y
NOT BY SMITH
1
PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
FIELD WIRING
FACTORY WIRING
Y
W
R
W
TH
S1
L1
L2
S2
MV1
MV2
GND
05-31
W
W
BK
BK
R
W
BK
W
L2
24V
24V (GND)
GND
S89J
W
W
VALVE
VALVE
HSI
L1
HSI
MV
MV
W
BK
W
R
W
BK
W
BK
BK
W
G
GAS VALVE
VR8305
HOT SURFACE IGNITER
( NORTON 271H )
( CARBO 0206DC )
( ISI 11120-100-0106 )
GAS VALVE
3 - 7 SECTION 36E01
3-12 SECTION 36C68
1
2
HOT SURFACE IGNITER
( NORTON 271H )
( CARBO 0206DC )
( ISI 11120-100-0106 )
R
115V.
24V.
W
ELECTRONIC
CIRCUIT
24V
24V GND
W
TERMINALS IN JUNCTION BOX
TERMINALS ON HSI CONTROL
TERMINALS ON CONTROLS
CONNECT STACK DAMPER
WITH MOLEX PLUG AS SHOWN
L2
THERMAL
CUTOFF
SWITCHES
R
BK
W
HIGH
LIMIT
1
Y
W
CIRC.
W
3
GAS
VALVE
VR8305
BK
R
BL
W
N.O. CONTACT
SERVICE SWITCH
L1
BK
BK
BL - BLUE
BK - BLACK
R - RED
W - WHITE
Y - YELLOW
G - GREEN
NOT BY SMITH
FIELD WIRING
FACTORY WIRING
C
RELAY COIL
W
Y
LOW-VOLTAGE
24V THERMOSTAT
RW
R
BK
BL
BL
BL
W
T1
TRANSFORMER
40VA
BL
Y
G
N.O.
CONTACT
VAL
VAL
W
ELECTRONIC
CIRCUIT
TH
GND
R
BK
GAS VALVE
3 -7 SECT. - 36E01
3 - 12 SECT. - 36C68
MV2
MV1
1
HONEYWELL S89J
FENWAL 05-31
ELECTRONIC
CIRCUIT
L1
115V/1/60
L2
HSI
(S1)
(S2)
BK
HSI
W
BK
W
GND
MV
MV
HOT SURFACE IGNITER
( NORTON 271H )
( CARBO 0206DC )
( ISI 11120-100-0106 )
2
W
R
G
BK
W