Quadra-Fire CASTILE Series Owner's Manual page 31

15. Thermocouple
The 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 box
indicating the preset temperatures of the green and red
lights have been obtained.
16. Thermostat
The appliance is designed to run on a 5 volt DC thermostat.
The heat anticipator, if present, 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 firebox.
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 if the appliance is
powered up.
18. 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 over fire condition should occur
or if the convection blower should fail to operate. If this
occurs the snap disc with automatically reset itself.
THERMOCOUPLE
HEAT OUTPUT
SWITCH
YELLOW
RED
ORANGE
WHITE
BLUE
BLACK
BLACK
YELLOW
RED
PURPLE
GR AY
BLUE
BLACK
BLACK
IGNITOR
Figure 31.1
February 5, 2019
THERMOS TAT
BLOCK
RESET
CALL
BUTTON
LIGHT
19. 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 side panel. If the fire 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. Power is always present at snap
disc #3 if the appliance is powered up.
20. Vacuum Switch
The vacuum switch is located on the lower right side of the
appliance behind left access panel. 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 or
plugged or if the firebox door is open.
21. Wiring Schematic
See Figure 31.1 below
The power outlet is located on the right rear of the
appliance beneath the heat output switch and reset button.
HOPPER
VACUUM
SWITCH
SWITCH
7022-515I
CASTILE INSERT
CAPACITOR FEED
SNAP
MOTOR
DISC #2
SNAP CONVECTION
DISC #1
BLOWER
COMBUSTION
BLOWER
SNAP
FUSE
DISC #3
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