Quadra-Fire CASTILE-MBK-B Owner's Manual page 38

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16. Thermostat
The appliance is designed to run on a 12 volt AC thermostat.
The heat anticipator should be set on the lowest setting
available.
17. Snap Disc #1 (Convection Blower) 110°F
Snap disc #1 is located on the right side of the appliance on
the top of the heat exchanger box. 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.
18. Snap Disc #2 (Fuel Delivery Interrupt) 250°F
Snap disc #2 is also located on the back side of the feed drop
tube. There are 2 orange wires 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 will
automatically reset itself.
THERMOCOUPLE
HEAT OUTPUT
SWITCH
YELLOW
RED
ORANGE
WHITE
BLUE
BLACK
BLACK
YELLOW
RED
PURPLE
GR AY
BLUE
BLACK
BLACK
IGNITOR
Figure 38.1
Page 38
THERMOS TAT
BLOCK
RESET
CALL
BUTTON
LIGHT
19. Snap Disc #3 (Back Burn Protector) 250°F
Snap disc #3 is mounted on the back of the auger tube in
the center of the appliance and has a red 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 snap disc will shut the entire system off. This disc must
be manually reset.
20. Vacuum Switch
The vacuum switch is located on the right side of the
appliance behind right side panel. 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.
21. Wiring Harness
See Figure 38.1 below.
HOPPER
VACUUM
SWITCH
SWITCH
7021-130C
Castile-B FS Pellet Stove
CAPACITOR FEED
SNAP
MOTOR
DISC #2
SNAP
CONVECTION
DISC #1
BLOWER
COMBUSTION
BLOWER
SNAP
FUSE
DISC #3
November 21, 2011