Electrical connection and ladder diagram – L.B. White 350 Premier User Manual
Page 28
Electrical Connection and Ladder Diagram
27
YELLOW
DIRECT SENSE
IGNITER
AIR PROVING SWITCH
YELLOW
GREEN
BURNER GROUND
GREY
OR
BLACK
BROWN
RED
GREEN
GREEN
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
GREEN
GREEN
GREEN
GREEN
BLACK
BLACK
BLACK
WHITE
BLACK
GROUND
TRANSFORMER
BROWN
BROWN
BROWN
JUMPER
YELLOW
YELLOW
WHITE
WHITE
WHITE
JUMPER
BLACK
BLACK
BLACK
BLACK
WHITE
BLACK
HIGH LIMIT SWITCHES
DSI CONTROL
GREEN
GREEN
GREEN
WHITE
WHITE
WHITE
BLACK
BLACK
BLACK
BLACK
WHITE
GREEN
WHITE
BLACK
BROWN
BLACK
RED
GREEN
BROWN
BROWN
GAS CONTROL
VALVE
REMOTE
TWO STAGE
THERMOSTAT
WHITE
WHITE
GREEN
GREEN
BLACK
BLACK
RED
POWERCORD
HI LO
BLUE
RED
HEAT
OFF
VENT
RED
WHITE
BLACK
BLACK
BLACK
BLACK
WHITE
WHITE
SELECTOR SWITCH W/ L.E.D.
TERMINAL
STRIP
BLACK
FAN MOTOR
RELAY
GREEN
WHITE
BLACK
MOTOR
0
1
2
4
6
8
C
MV
HI
WARNING: THIS HEATER MAY START AT ANY TIME
CAUTION - REFER TO THE EQUIPMENT'S ELECTRICAL CONNECTION DIAGRAM WHEN SERVICING
TO AVOID WIRING ERRORS & HEATER MALFUNCTION. CHECK FOR PROPER OPERATION AFTER SERVICING.
C/COM
X
R
FS
W
PS1
PS2
MV
LED
IND
L1
HEAT
OFF
VENT
SELECTOR SWITCH
W/ L.E.D.
GROUND
MOTOR
L1
NEUTRAL
GROUND
115V
24V
TRANSFORMER
FAN MOTOR RELAY
IF ANY OF THE ORIGINAL WIRES AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, IT MUST BE
REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE RATING OF AT LEAST 302ºF (150ºC)
ELECTRICAL LADDER DIAGRAM
ELECTRICAL CONNECTION DIAGRAM
THERMOSTAT
GAS VALVE
SOLENOIDS
HIGH LIMIT
SWITCH
HIGH LIMIT
SWITCH
AIR PROVING SWITCH
LED
HI LO
Y
B
R
Y
B
R
01
24
6
8
DIRECT SENSE
IGNITER
BURNER GROUND
DSI CONTROL
C/COM
X
FS
W
PS1
PS2
MV
LED
IND
L1
R