10
IMPORTANT: If any original wire has
to be replaced, it must be replaced
with type 105
°
C or its equivalent.
Terminal Block on 85 Models only.
RED
BLACK
YELLOW
BLUE
RED
BLACK
HIGH TENSION
+ 12V DC
NEG
RED
YELLOW
ELECTRODE
BLACK
VALVE
RED
1
4
2
5
3
6
1
4
2
5
3
6
+THERMO
MOTOR
CIRCUIT
BREAKER
IGNITION
CONTROL
BLO
PWR
SAIL
SWITCH
WHITE
LIMIT
SWITCH
WHITE
BLUE
BLUE
BLUE
GROUND
BLUE
THERMOSTAT
ON
OFF
ON/OFF
SWITCH
+12v
LS
SS
TH
CB
ICB
Pwr
Blw
TH
CB = Circuit Breaker
GND = Ground
GV = Gas Valve
HV = High Voltage
EL = Electrode
MOT = Blower Motor
+12v GND
FS
HV
VC
VC
EL
LADDER DIAGRAM
GND
SS = Sail Switch
TH = Thermostat
LS = Limit Switch
TR = Thermo Relay
VC = Valve Control
PS = Power Switch
MOT
NOTE: In some installations, the Power Switch (PS)
may control the air conditioning system
thermostat function.
PS
THERMO
RED
BLACK
YELLOW
BLUE
RED
BLACK
HIGH TENSION
+ 12V DC
NEG
RED
YELLOW
ELECTRODE
BLACK
VALVE
RED
+THERMO
MOTOR
CIRCUIT BREAKER/
ON/OFF SWITCH
IGNITION
CONTROL
BLO
PWR
SAIL
SWITCH
WHITE
LIMIT
SWITCH
WHITE
BLUE
BLUE
GROUND
BLUE
THERMOSTAT
+12v
LS
SS
TH
CB
ICB
Pwr
Blw
TH
GND = Ground
GV = Gas Valve
HV = High Voltage
EL = Electrode
MOT = Blower Motor
SS = Sail Switch
+12v GND
FS
HV
VC
VC
EL
LADDER DIAGRAM
GND
TH = Thermostat
LS = Limit Switch
TR = Thermo Relay
VC = Valve Control
PSCB = Power Switch/
Circuit Breaker
MOT
NOTE: In some installations, the Power Switch (PS)
may control the air conditioning system
thermostat function.
PS
THERMO
WITHOUT DOOR, but with Blower Control Ignition Board
WITH DOOR and Blower Control Ignition Board
85-III Local Sense
Red
Relay
Yellow
Blue
Red
Yellow
High Tension
+12V DC
Neg.
Red
Yellow
Single Sense
Electrode
Yellow
Valve
Red
1
2
3
4
5
6
1
2
3
4
5
6
Motor
Circuit breaker ON/OFF switch
Ignition control
Sail
switch
White
Limit
switch
White
Blue
Yellow
Red
Ground
White
Switch
Thermostat
85-IV Local Sense
RED
RELAY
YELLOW
BLUE
RED
BLACK
HIGH TENSION
+ 12V DC
NEG
RED
YELLOW
ELECTRODE
BLACK
VALVE
RED
1
4
2
5
3
6
1
4
2
5
3
6
+THERMO
MOTOR
CIRCUIT
BREAKER
IGNITION
CONTROL
SAIL
SWITCH
WHITE
LIMIT
SWITCH
WHITE
BLUE
YELLOW
RED
GROUND
BLUE
THERMOSTAT
ON
OFF
ON/OFF
SWITCH
THERMO
RED
85 Series Wiring Diagrams
