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2. The
Vacuum
switch. For the stove to
operate correctly the firebox needs to be
sealed. During the first 30 seconds after the
stove has been turned on the control board
will check to see if the switch senses negative
pressure in the stove. If there is no negative
pressure, the stove will go into “Safety
shutdown”. Once the stove completes the
safety shutdown the #2 LED will start
blinking.
Safety Features
1.
”High Limit” switch”,
an overheat safety
switch will shut off the fuel feed if the stove
reaches a temperature above normal
operating temperature. This is a
manual
reset
High Limit switch. There is no
diagnostic light associated with this switch.
When this switch shuts the stove down the
control board will be in
“Internal Alarm”
.
Eventually the P.O.F. switch drops out and
the #3 LED will start blinking. The switch
will need to be manually reset. For this
reason it would be sensible to check this
switch first any time the #3 diagnostic LED
is blinking. When the High limit switch
causes a shutdown, the problem in the stove
must
be diagnosed before the stove is put
back in service, (Defective room fan, dirty
room fan, defective high limit switch or
possibly a bad control board)
2.
Proof of Fire switch
also called the
P.O.F.
This senses the temperature rise in the
exhaust system. The switch is normally open
and closes the circuit at 110 degrees. The
stove will shut down if temperatures above
110 degrees F are not sensed during start up
or drop below 110 degrees during normal
operation.
3.
Vacuum switch
also called the
Negative
pressure switch
. When the stove is turned on
the exhaust fan will create a negative
pressure in the firebox. The control board
continually checks to see if negative pressure
is present during operation of the stove. If the
exhaust venting system becomes clogged or
obstructed, the firebox door or ash pan door are
left open or the exhaust fan quits working the
control board will go into “Safety shutdown”.
There is a 90 second window to allow for
cleaning the glass and emptying the ashpan
before then stove shuts down. This is sufficient
for the daily maintenance.
The St. Croix pellets stove has been Safety
Tested by an accredited, independent
laboratory.
Shutting The Stove Off (Refer Figure 2)
1. Press the ON/OFF switch (2) to turn off the
auger feed system; the fire will go out in a few
minutes.
2. The Room Air Fan and the Combustion
Exhaust Fan will continue to run until the P.O.F.
switch drops out. Meanwhile the Self-Cleaning
Grate continues to run at normal operating
speed. When the P.O.F. switch drops out the
Room Air Fan, Combustion Exhaust Fan and
the Self-Cleaning Grate Motor will turn off.
3. NEVER unplug the stove to shut it off.
Doing so may cause a significant amount of
smoke to enter the room.
WARNING: These safety features are
designed to protect life and property.
Bypassing these features voids all warranties
and the safety listing of the stove.
