8900-Iii Series & 79 / 85 / 89 With Blower Control Ignition Board - Atwood 79 Series Service Manual

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DC Wiring Diagram
WITHOUT DOOR
GROUND
ELECTRODE
YELLOW
VALVE
SAIL
YELLOW
SWITCH
RED
WHITE
LIMIT
SWITCH
HIGH TENSION
DC Wiring Diagram
WITH DOOR
GROUND
ELECTRODE
YELLOW
VALVE
SAIL
YELLOW
SWITCH
RED
WHITE
LIMIT
SWITCH
HIGH TENSION
DC Wiring Diagram
+12 VDC red
Circuit breaker
ON/OFF Switch
+Thermo blue
-12 VDC yellow
Thermo blue
power
blue
switch
valve
red
gnd
yellow
high voltage
Wiring Diagram for 8900-III
MOTOR
BLACK
CIRCUIT
BREAKER
RED
YELLOW
BLUE
BLUE
PWR
BLO
IGNITION
BOARD
BLUE
BLUE
RED
YELLOW
MOTOR
BLACK
CIRCUIT
BREAKER
ON/OFF
ON
OFF
SWITCH
RED
YELLOW
BLUE
BLUE
PWR
BLO
IGNITION
BOARD
BLUE
BLUE
RED
YELLOW
red
yellow
blue
motor
red
limit
sail
blue
switch
red
yellow
1 2
3 4
gas
valve
IMPORTANT:
If any original wire has to be replaced,
it must be replaced with type 105° C
ON/OFF
or its equivalent.
SWITCH
+ 12V DC
1
1
NEG
4
4
+THERMO
2
2
THERMO
5
5
3
3
6
6
THERMOSTAT
AC Wiring Diagram
WITH DOOR
ELECTRODE
GREEN
+ 12V DC
VALVE
1
1
NEG
4
4
+THERMO
2
2
THERMO
5
5
3
3
6
6
THERMOSTAT
YELLOW
OFF
ON
Supply LeadsFurnace Wiring
(+) 12 volt DCto(+) 12 volt DC (red wire)
relay
(-) 12 volt Dto(-) 12 volt DC (yellow wire)
thermostattothermostat (blue wires)
12
GROUND
BLACK
YELLOW
GREEN
RELAY
BLACK
BLACK
YELLOW
1 1
WHITE
2
BLACK
3 3
TRANSFORMER
SAIL
SWITCH
RED
BLUE
BLUE
LIMIT
SWITCH
BLUE
RED
GREEN
HIGH TENSION
MOTOR
120 VAC GREEN
120 VAC BLACK
CIRCUIT
BREAKER
120 VAC WHITE
BROWN
-
THERMO BLUE
WHITE
2
WHITE
WHITE
AC CAPACITOR
MOTOR RUN
+
THERMO BLUE
IGNITION
CONTROL
THERMOSTAT

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