8500 Series - Atwood 79 Series Service Manual

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