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1.11 Wiring Diagrams
1.11.1 Main
8051315C/ 8051526B
Refer to "PRINCIPAL WIRING CONNECTIONS"
on Page 1-37 for detail of connection points
J1, J2, J3, C2, C3, and C5.
K1
2
COMPUTER GROUND
DETAIL
A
A
SENSE 2
ALARM(GND)
VALVE(GND)
24VAC(GND)
24VAC
SPARK 2
SPARK 1
GND
(BURNER)
VALVE
ALARM
SENSE 1
SOUND DEVICE
SOUND DEVICE
LEFT IGNITOR
RIGHT IGNITOR
FULL VAT
DUAL VAT
RIGHT IGNITOR
LEFT IGNITOR
A
A
LEFT
BL
RELAY
RIGHT
BL
RELAY
LEFT DV
HEAT &
BLOWER
RELAY
24V
PWR
V2S
AS
AD
PWR
V2D
GND
GV
J1
K2 K3
K4
GND
GND
PWR
V1S
ALR
PWR
V1D
GND
GV
J3
AIR
12V
GND
J2
SOUND
1
3
GND
J1
GV
J3
AIR
12V
GND
J2
1
3
GND
2
FV OR
RIGHT DV
HEAT &
BLOWER
RELAY
K1
LEFT
BL
RELAY
RIGHT
BL
RELAY
LEFT DV
HEAT &
BLOWER
RELAY
24V
PWR
V2S
AS
AD
PWR
V2D
GND
K2 K3
K4
GND
GND
PWR
V1S
ALR
PWR
V1D
GND
SOUND
FV OR
RIGHT DV
HEAT &
BLOWER
RELAY
GV
SENSE 2
ALARM(GND)
VALVE(GND)
24VAC(GND)
24VAC
SPARK 2
SPARK 1
GND
(BURNER)
VALVE
ALARM
SENSE 1
SENSE 2
ALARM(GND)
VALVE(GND)
24VAC(GND)
24VAC
SPARK 2
SPARK 1
GND
(BURNER)
VALVE
ALARM
SENSE 1
COMPUTER GROUND
DETAIL
INSET
HONG KONG
UNITS ONLY
OIL RETURN HEATER FRONT
TO J3 PIN12
WHITE
BLOWER
1
2
TO C2 PIN1
TO C2 PIN12
TO C2 PIN3
T1
T2
LINE VOLTAGE (L1)
LINE VOLTAGE(COM)
DETAIL A-A
ALARM(GND)
VALVE(GND)
24VAC(GND)
24VAC
FUSE
PWR
PWR
V1D
ALR
V1S
GND
GV
FULL VAT
TO J3 PIN9
TO J3 PIN6
TO J3 PIN2
WHT
RED
BLK
GAS
VALVE
BLK
MV
MV
FOR UNITS WITH NO
SAFETY DRAIN SWITCH
ADD IN-LINE SPLICE
BLK
BLK
BLK
TEMP
PROBE
HIGH
LIMIT
NC
NO
COM
SAFETY
DRAIN
SWITCH
WHT
RED
BLK
TO J1 PIN2
TO J1 PIN8
TO J1 PIN9
DUAL VAT
TEMP
PROBE
HIGH
LIMIT
BLK
BLK
BLK
NC
NO
COM
SAFETY
DRAIN
SWITCH
FOR UNITS WITH NO
SAFETY DRAIN SWITCH
ADD IN-LINE SPLICE
BLK
MV
MV
GAS
VALVE
TO J2
COMPUTER OR CONTROLLER
HEAT STRIP
FILTER
PUMP
SOLENOID
FILTER
PUMP
TO TRANSFORMER
BOX
The Heat Strip is
not present here on
352/355’s and
552/555’s.