Wire Harness Assembly
Part #P7730
For Models 7500 units
•
•
•
•
Unplug unit
Open both side panels.
Remove existing wire harness.
Attach the following:
o
o
o
o
Control Board
Auger Motor
Fuel Stirrer Motor
Electrical Plug
o
o
o
o
Room Fan Sensor
Room Air Fan
High Limit Sensor
Exhaust Fan
molex connector
black wire to Vacuum Pressure switch (Com) grey wire to one lead
brown wire to one lead white wire to one lead
double white wire to inside terminal (top, right side) Black/orange
wire to outside terminal (top, left side) green wire to bottom
terminal other end of green wire screwed to base of unit
double white wire to bottom terminal green wire to top terminal
white wire to red wire grey wire to double black wire
blue wire to bottom terminal grey/green to top terminal
black wire to white wire yellow wire to black wire
F:\AESBusinessSystems\AES Technical\Piece part instructions\P7730 Wire Harness Assembly 7500.doc
Magnum 7500 Wiring Diagram
2 wire low voltage thermostat
Circuit
Board
Control
White neutral
Brown
AES #
MF3593
Gray
Blue
Red
Black
Fan heat
sensor
Green
High
Limit
Orange
Fuel Stirrer
Gear motor
AES# MF3540
Exhaust Motor
AES # MF3650
MF3650 2-speed exhaust
blower to be wired using
the white and black leads
red lead is not used.
Green
White
Auger Gear
Motor
AES # CF26
White
Orange
200 deg. High
limit snap disk
Auger
Safety
Sensor
AES # MF3537
Power
Cord
Receptacle
showing
white
Blower
1240 cfm
AES # CF33
2-speed motor w/capacitor
Black
Green
Ground
white
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
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.
F:\AESBusinessSystems\AES Technical\Piece part instructions\P7730 Wire Harness Assembly 7500.doc