26
Electrical Connection and Ladder Diagram
WARNING: THIS HEATER MAY START AT ANY TIME
TM
TM
24V
120V
BLUE
FROM SMART BOX
FROM SMART BOX
HEAT CHAMBER
OR
BURNER GROUND
CAUTION-REFER TO HEATER'S ELECTRICAL CONNECTION DIAGRAM WHEN SERVICING THE HEATER'S ELECTRICAL
COMPONENTS TO AVOID WIRING ERRORS & EQUIPMENT MALFUNCTION. CHECK FOR PROPER OPERATION AFTER SERVICING
150-28269
IGNITER
GROUND
HIGH VOLTAGE
IGNITION LEAD
DSI CONTROL
L1
IND
L.E.D.
MV
PS2
PS1
W
FS
R
X
C
COM
GROUND
POWER CORD
WHITE
FAN
MOTOR
GAS CONTROL VALVE
L1
IND
L.E.D.
MV
PS2
PS1
W
FS
R
X
C
COM
GREEN
YELLOW
BLACK
DSI CONTROL
TRANSFORMER
IGNITER
FLAME SENSOR
HIGH LIMIT SWITCH
AIR PROVING
SWITCH
BLACK
BLACK
BROWN
BLUE
BLUE
YELLOW
WHITE
GREEN
GREEN
WHITE
BROWN
BROWN
GREEN
WHITE
GREEN
BROWN
BLUE
BLUE
BLACK
GROUND
TRANSFORMER
ELECTRICAL CONNECTION DIAGRAM
GROUND
120V
24V
MOTOR
AIR PROVING SWITCH
HIGH LIMIT
SWITCH
SOLENOID(S)
FLAME SENSOR
NEUTRAL
L1
ELECTRICAL LADDER DIAGRAM
IF ANY OF THE ORIGINAL WIRE 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)
FROM
SmartBox™
FROM
SmartBox™
Summary of Contents for GUARDIAN Smart Sense AD250
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