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Page 40
250-7251G
August 20, 2009
R
Castile Pellet Insert
16. Snap Disc #1 (Convection Blower) 110°F
Sn
ap disc #1 is located behind the right cast side of the fi rebox
above the red call light. There are 2 purple wires connected
to it. This snap disc turns the convection blower on and off as
needed. Power is always present at snap disc #1.
17.
Snap Disc #2 (Fuel Delivery Interrupt) 250°F
Snap disc #2 is located on the back side of the feed drop
tube. There is 1 orange wire and 1 black wire connected to
it. This snap disc will turn off the feed system, which will turn
off the appliance if an overfi re condition should occur or if the
convection blower should fail to operate. If this occurs the
snap disc with automatically reset itself.
18.
Snap Disc #3 (Burn Back Protector) 250°F
Snap disc #3 is mounted on the back of the auger tube in the
center of the appliance and has a reset button. To access
it remove the right cast side. If the fi re tries to burn back
into the feed system or push exhaust up the feed tube, this
snap disc will shut the entire system off. This disc must be
manually reset.
Thermocouple
Burn
Selector
Thermostat
Block
Female
Male
Igniter
Call
Light
Snap
Disc #3
Reset
Button
Fuse
Receptacle
Snap
Disc #1
Exhaust
Blower
Convection
Blower
Vacuum
Switch
Snap
Disc #2
Capacitor
Feed
Motor
Yellow
Yellow
Yellow
Blue
Blue
Gray
Gray
Black
Black
Black
Black
Black
White
White
Red
Red
Purple
Red
White
19. Vacuum Switch
The vacuum
switch is located at the back of the appliance.
This switch turns the feed system on when vacuum is present
in the fi rebox. The vacuum switch is a safety device 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.
20. Wiring Harness
See Figure 40.1 below
Figure 40.1