34
Magnum 7500 Wiring Diagram
The High limit control is pre-set and does not need to be adjusted. If the furnace is overheating
consult your HVAC installer for proper duct installation, pressures and sizing.
The fan limit control heat settings are pre-set and do not need to be changed. If the room fan is cycling
often consult your HVAC contractor for proper duct pressure setting.
Circuit
Board
Control
AES #
MF3593
2 wire low voltage thermostat
White
Green
Ground
Fuel Stirrer
Gear motor
AES# MF3540
Exhaust Motor
AES # MF3650
Auger Gear
Motor
AES # CF26
Blower
1240 cfm
AES # CF33
2-speed motor w/capacitor
white
Fan heat
sensor
Gray
Green
High Limit
sensor
Blue
Auger
Safety
Sensor
White neutral
Brown
Red
Black
Green
Orange
AES # MF3537
White
Power Cord
Receptacle
showing
back of plug
Black
white
Orange
MF3650 2-speed exhaust
blower to be wired using
the white and black leads
red lead is not used.
200 deg. High
limit snap disk
A 200-degree high limit
control has to be installed
in the primary furnace
duct work below the
Magnum 7500 hot air
outlet in a supplementary
furnace installation only.