Electrical Connection And Ladder Diagram - L.B. White 377 Owner's Manual And Installation Instructions

Electrical Connection and Ladder Diagram

Always refer to the heater's electrical connection diagram when servicing to avoid wiring errors and heater malfunction.
CONTROL
VALVE
MOTOR
IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE
REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A
12
Check for proper operation after servicing.
WARNING: THIS HEATER MAY START AT ANY TIME
AIR PROVING SWITCH
(NOT SUPPLIED ON SOME MODELS)
BLACK OR RED
BLACK
GAS
WHITE
HIGH LIMIT
SWITCH
BLACK
WHITE
NOTE: IF AIR PROVING SWITCH IS NOT SUPPLIED, POWER IS SENT
DIRECTLY TO HIGH LIMIT SWITCH. SEE "DASHED" LINE.
ELECTRICAL CONNECTION DIAGRAM
THERMOSTAT
MOTOR
AIR PROVING SWITCH
ELECTRICAL LADDER DIAGRAM
TEMPERATURE RATING OF AT LEAST 302
CAUTION
BLACK
OR RED
JUMPER
(REMOVE TO ADD
THERMOSTAT)
GROUND
GROUND
HIGH LIMIT
SOLENOID
SWITCH
O F (150
BLACK
BLACK
THERMOSTAT
(OPTIONAL)
BLACK
WHITE
POWER
CORD
GREEN
NEUTRAL
O C).