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BK
R
W
FOR 120 AC
VOLT
L1
OPERATION
BK
RETURN
(NEUTRAL)
W
R
GROUND
G
BK
R
W
L1
BK
FACTORY WIRED
FOR 240 VOLT
W
L2
R
GROUND
G
Wiring Diagram – Low NO
AIR
Y/BK
SWITCH
V/BK
INVENSYS
V/BK
GAS VALVE
1
V/BK
TH
2
Y/BK
TR
BK/W
3
Y/BK
D
4
R/BK
D
RELAY
G/BK
8
7
GND
5
R
6
5
R/W
BURNER TRAY
4
3
2
1
G
4
BK
3
R
2
W
1
TRANS
24 VAC
POWER SWITCH
G
G
G
SPG
P6
AIR
HONEYWELL
SWITCH
V/BK
V/BK
Y/BK
R/BK
1
P/PV
C/ MV
2
Y/BK
PV
V/BK
3
M/MV
G/BK
GND
4
P4
W/V
P10
BURNER TRAY
"HL2" HI LIMIT (IN/OUT HEADER)
SPLICE HERE
FOR VENT (OPTIONAL)
P4
"ROL" ROLL-OUT SWITCH
1
OPTIONAL AUTO
BLOWER
RESET
SPLICE HERE FOR
FLOW SWITCH (OPTIONAL)
SPLICE HERE
Y BL
FOR FIREMAN'S SWITCH
(FIELD INSTALLED OPTIONAL)
1
x
GAS VALVE
1
"PRS" PRESSURE SWITCH
(IN/OUT HEADER)
"HL1" HI LIMIT (IN/OUT HEADER)
MANUAL RESET
BK
R
O
BK
Y
R
O
Y
BK
R
W
O
P2
1
15
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