Mt. Vernon Pellet Insert (AE)
R
17.Power Supply
The power supply is located at the bottom left side of the appliance. It converts 120 volt AC current to 15 volt DC current to power the appliance.
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 fi re 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 continue to display messages. This sensor must be manually reset. Disconnect power before resetting.
19.Thermocouple - Firepot
The thermocouple is located on top of the fi repot inside the thermocouple cover (ceramic protection tube). The thermocouple sends a millivolt signal to the control board telling the control board there is a fi re in the fi repot.
20.Thermocouple on Drop Tube
21.Vacuum Switch
The vacuum switch is located on the right side of the appliance under the feed motor behind the 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 fi rebox. The vacuum switch is a safety device designed to shut off the feed motor if the exhaust or the heat exchanger system is dirty or plugged or if the fi rebox door is open.
22.Wall Control Thermostat
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 packl.
23.Wiring Connections for Power Supply
See Figure 44.1.
24.Wiring Connection for Control Board See Figure 44.2.
The thermocouple is located on the bottom of the drop tube on the right side and is attached with a wing nut. It turns the convection blower on and off, varies the speed of the convection blower and will shut down the appliance if internal heat exceeds set temperature.
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 | 15V DC out to |
Voltage | AC out to Control | Control Board |
| Board |
|
Power Supply shown with cover removed
13
FUSE 15A 120V, 
UNDER THE COVER
14
12 | 11 | N/a | 10 | 9 | 8 | 7 | 6 | 5 |
4 
3 2
1
|
|
| FUSE 15A 120V, |
15 | 16 | 17 | UNDER THE COVER |
|
Figure 44.1 - Power Supply | Figure 44.2 - Control Board |
|
#Description
1Combustion Blower
2
3 Feed/Auger Motors
4 Hopper/Door Switches
5Auger/Auto Clean/Vacuum Switches
6Low Fuel
#Description
7Thermostat Wall Control
8Combustion Blower (feedback)
9 Firepot Thermocouple
10 Drop Tube Thermocouple n/a Not Used
11 Convection Blower (feedback) n/a Not Used
#Description
11Convection Blower (feedback)
12Igniter
13AC Power In for Igniter
14Convection Blower Power
15Overheat Sensor (Snap Disc)
16DC Power In from Power Supply
1712 Volt Battery
Page 44 |
| November 22, 2011 |