Wiring Diagrams - Mr. Heater MH125FAV Operating Instructions And Owner's Manual

NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!

WIRING DIAGRAMS

B
Y
W
G
LINE CORD B
COLOR CODE LEGEND
R RED FEMALE CONN.
B BLACK
Y YEL RING CONN.
O ORG
W WHITE
G GREEN
Mr. Heater, Inc.| Forced Air Propane Construction Heater
CONNECTION DIAGRAM
HIGH LIMIT
SWITCH
MOTOR
THERMOCOUPLE
Y
TO WIRE
IGNITION CONTROL
B
TEMP
MOTOR
VAC INPUT
SPARK PLUG
O**
HV TRANS
GND
G
SCREW
NOTE: If any original wiring as supplied with the heater, must be replaced, It must be replaced with
Type AWG 105° C wire or its equivalent, except as indicated (Type SF 2.200, **SGI-250° C)
SCHEMATIC DIAGRAM
B
VAC INPUT
MOTOR
TEMP
HV TRANS
IGNITION
CONTROL
TO WIRE
TO WIRE
TO JUNCTION
GND
SCREW
115V
60HZ
TEMP
MOTOR
VAC INPUT
8
Operating Instructions and Owner's Manual
SPARK
PLUG HIGH LIMIT
SWITCH
MOTOR