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Electrical Connection
and Ladder Diagram
August 1999
Used oon:
Model
Design Sequence
AW060
A
AW100
A
AW250
A
7.1-5
5
TRANSFORMER
WARNING: THIS HEATER MAY START AT ANY TIME
ELECTRICAL CONNECTION DIAGRAM
ELECTRICAL LADDER DIAGRAM
L.E.D. INDICATOR
HSI CONTROL
FAN
MOTOR
HIGH LIMIT
SWITCH(ES)
FLAME
SENSOR
HEAT CHAMBER
OR
BURNER GROUND
IGNITER
* THERMOSTAT
GAS CONTROL VALVE
AIR PROVING
SWITCH
GROUND
L1
NEUTRAL
* THERMOSTAT
NEUTRAL
GROUND
HIGH LIMIT
SWITCH
BURNER
GROUND
SOLENOID(S)
AIR PROVING
SWITCH
FLAME
SENSOR
L.E.D. INDICATOR
HSI CONTROL
MOTOR
TRANSFORMER
120V
24V
IND
L1
HSI
HSIG
L2
W
PSI
FSI
GV
PSO
FSG
C
BR
O
W
N
WHITE
GREEN
BLACK
WHITE
BLACK
GREEN
GREEN
RED
RED
PURPLE
WHITE
BR
O
W
N
BR
O
W
N
BLA
C
K
WHITE
BLUE
BLUE
BLA
C
K
BLA
C
K
WHITE
WHITE
WHITE
BLA
C
K
GREEN
YELLO
W
BLA
C
K
BLA
C
K
RED
RED
WHITE
YELLO
W
BLUE
PURPLE
BR
O
W
N
BLUE
GREEN
GREEN
IND
L1
HSI
HSIG
L2
W
PSI
FSI
GV
PSO
FSG
C
GREEN
WHITE
BLA
C
K
Wiring Diagrams