25
Electrical Connection and Ladder Diagram
YELLOWYELLOW
L1
IND
L.E.D.
MV
PS2
PS1
W
FS
COM

DSI CONTROL

R
X
C
DIRECT SENSE
IGNITER
HIGH LIMIT
SWITCH
AIR PROVING SWITCH
GAS VALVE
SOLENOIDS
BURNER GROUND
THERMOSTAT
HIGH
HEAT
LOW
HEAT

ELECTRICAL LADDER DIAGRAM

HEAT
VENT
SELECTOR SWITCH
MOTOR
TRANSFORMER
L1
NEUTRAL
GROUND
120V 24V

IF ANY OF THE ORIGINAL WIRES AS SUPPLIED WITH THE HEATER MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL

HAVING A TEMPERATURE RATING OF AT LEAST 302 F (150 C)

OFF

CAUTION-REFER TO THE HEATER’S ELECTRICAL CONNECTION DIAGRAM WHEN SERVICING

TO AVOID WIRING ERRORS AND HEATER MALFUNCTION. CHECK FOR PROPER OPERATION AFTER SERVICING.

WARNING: THIS HEATER MAY START AT ANY TIME

FAN
MOTOR

TRANSFORMER

AIR PROVING

SWITCH

BLUE
BLUE
HIGH VOLTAGE
IGNITION LEAD
IGNITER
FLAME SENSOR
L1
IND
L.E.D.
MV
PS2
PS1
W
FS
R
X
C
COM

DSI CONTROL

SELECTOR SWITCH
HEAT
OFF
VENT
GAS CONTROL
VALVE
GREEN
BURNER
GROUND
HIGH LIMIT
SWITCH
HI
WHITE
BLACK RED
GREEN
GROUND
(OPTIONAL)
THERMOSTAT
LO
HI
MV
C
YELLOW
BLUE
RED

ELECTRICAL CONNECTION DIAGRAM

120V

24V

BLACK
BLACK
BROWN
BLUE
BLUE
WHITE
YELLOW
GREEN
GREEN
POWER CORD
BLACK
WHITE
GREEN
GROUND
BLACK
WHITE
YELLOW
GREEN
TERMINAL
STRIP
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
BLACK
JUMPER
JUMPER JUMPER
YELLOW
YELLOW
BROWN
WHITE
BLACK
BROWN BROWN
BROWN
BLACK
BLACK
WHITE
WHITE
WHITE
BLACK
BURNER
GROUND

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