Wiring Schematic For Power Supply; Wiring Schematic For Control Board - Quadra-Fire MT VERNON Owner's Manual

MT. VERNON AE INSERT
18. Overheat Sensor (Snap Disc)
The overheat sensor is mounted on the back of the
drop tube in the center of the appliance and has a
reset button. To access it remove the right side panel.
If the fire tries to burn back into the feed system or
push exhaust up the feed tube, this sensor will shut
the appliance down, however the wall control will still
display messages. This sensor must be manually re-
set. Disconnect power before resetting.
19. Thermocouple - Fire pot
This thermocouple is located on top of the fire pot
inside the thermocouple cover (ceramic protection
tube). The thermocouple sends a millivolt signal to the
control board telling the control board there is a fire in
the fire pot.
20. Thermocouple - Drop Tube
This thermocouple is located on the bottom of the
drop tube on the right side and attached with a wing
nut. It turns the convection blower on and off, varies
the speed of the convection blower and will shut down
appliance if internal heat exceeds set temperature.
B. Wiring Schematic for Power Supply
Heat sinks are taped to cover for shipping. Slowly lift cover
and cut the tape holding them in place and then you can
remove the cover.
Fuse
15A 250V
Input Line
Input Line Voltage
Voltage
AC out to Control
Board
Power Supply shown with cover removed
Figure 36.1 - Power Supply
# Description
1 Combustion Blower
2 Auto-Clean System
3 Feed / Auger Motors
4 Hopper / Door Switches
Auger / Auto-Clean / Vacuum
5
Switches
6 Low Fuel
36
21. Vacuum Switch
22. Wall Control Thermostat

23. Wiring Schematic for Power Supply

24. Wiring Schematic for Control Board

25. Wiring Schematic
C. Wiring Schematic for Control Board
Fuse 15A 230V,
under the cover
15V DC out to
Control Board
Figure 36.2 - Control Board
# Description
7 Thermostat Wall Control
8 Combustion Blower (feedback)
9 Fire pot thermocouple
10 Drop Tube Thermocouple
n/a Not Used
11 Convection Blower (feedback)
7036-187M
The vacuum switch is located on the right side of the
appliance under the feed motor behind right side panel
and connects to the drop tube with a hose. This switch
turns the feed system on when vacuum is present
in the firebox. The vacuum switch is a safety device
to shut off the feed motor if the exhaust or the heat
exchanger system is dirty, plugged or if the firebox door
is open.
The appliance is designed to run on a custom designed
3.3 volt DC thermostat wall control. It will not operate
on any other wall control. Refer to the instructions
supplied with the appliance located in the component
pack.
See Figure 36.1 below.
See Figure 36.2 below.
See Figure 37.1 on pages 37 and 38.
13 12 11 n/a 10
14
15 16
# Description
12 Igniter
13 AC Power In for Igniter
14 Convection Blower Power
15 Overheat Sensor (Snap Disc)
DC Power In form Power
16
Supply
17 12 Volt Battery Back-up
9 6 5
8
7
4
3
2
1
Fuse 15A 230V,
under the cover
17
August 13, 2018