American Energy Systems MagnuM 7500 - Manual (Page 35)

35
Magnum 7500 Wiring Diagram
IMPORTANT: Incorrectly installed fan limit controls can cause electrical shock, shorting out of the
circuit and damage to the unit. The Brass jumper wire must be removed on the fan limit control.
Refer to the installation, setting and operation instructions provided with the fan limit control.
The fan limit control heat settings are as follows: Fan on 140 deg., Fan off 90 deg., High Limit 200 deg.
If the fan on is set too high the high limit might trip out the auger motor and the fire will go out. If the fan
on is too low the fan will cycle on and off too much. If the fan off is set too low the blower will distribute
cold air and the furnace will not operate efficiently.
Circuit
Board
Control
AES #
MF3593
2 wire low voltage thermostat
Power Cord
Receptacle
Power cord
Black
Green
Ground
Fuel Stirrer
Gear motor
AES# MF3540
Exhaust Motor
AES # MF3542
Auger Gear
Motor
AES # CF26
Blower
1240 cfm
AES # CF24
Grainger Motor#3M393 white
white
Power cord white
Black to fan limit control
Fan side
Fan
Black to
fan limit
Gray
Green
High Limit
power power
Remove
clip
Blue
Auger
Safety
Sensor
White neutral
White neutral
Brown
Red
Black
Green
Orange
Note: Purple wire is capped and not used Honeywell # L4064B 2228
Grainger # 2E818 5” insertion
AES # CF23
AES # MF3537
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.