Hastings
Operations Manual
Page 7
WARNING: These safety features are
designed to protect life and property.
Bypassing these features voids all warranties
and the safety listing of the stove.
diagnostic code to help in diagnosing problems
that may occur.
These conditions fall into 2 categories:
a.
Heat related issues.
b.
Vacuum related issues.
The Diagnostic Lights flash as follows:
1.
The
Proof of Fire
switch. This switch will
sense the temperature of the Exhaust rising
during start up. If the Exhaust temperature
does not reach 110 degrees F, or if during use
the temperature drops below 110 degrees F,
the Stove will go into
“Internal Alarm”
and
the Auger will quit feeding fuel. Once the
stove completes the safety shutdown, the #3
LED will start blinking.
(See Figure 2 on
Page 5 and point 3 on page 15)
2.
The
High Limit
switch. This sensor will
sense if the unit reaches temperatures that are
too high for normal operation. If this happens
the Auger will quit feeding and the #2 and #3
LED lights will flash simultaneously.
(See
Figure 2 on Page 5 and point 4 on page 16)
3.
The
Vacuum
Switch - For the stove to
operate, the Firebox needs to be sealed.
During the first 30 seconds after the stove has
been turned on the Control Board will check
if the switch senses negative pressure
(Vacuum) in the Firebox of the stove. If there
is no negative pressure, the stove will shut
down and the #2 LED will start blinking.
(See Figure 2 on Page 5 and point 2 on page
15).
“Power Reset”
. If the board becomes
unresponsive you must unplug the stove, wait 10
seconds and plug the stove back in to reset the
board.
“Internal Alarm”.
When the control board
becomes unresponsive, the control board is in
Internal Alarm. The control board has sensed one
of the Safety sensors. This may cause the stove to
go out.
In some cases, after waiting
approximately 45 seconds the stove will start
responding to the control board again.
Many
times, the cause of this is a change in the vacuum
inside the stove. This may be caused by excessive
wind, opening the Firebox door or opening the
Ash Pan door. The control board will monitor the
vacuum switch and resume normal operation if the
vacuum returns to normal.
Safety Features
1.
”High Limit” switch”,
an overheat safety
switch will shut off the fuel feed if the Stove
reaches temperatures above normal operating
temperature. This is a “Normally Closed” switch
and is part of the Fan limit control. If the High
limit switch trips several times, the problem in
the Stove
must
be diagnosed before the Stove is
put back in service, (Defective Room Fan, dirty
Room Fan, defective Fan Limit Control 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 if the
temperature drops 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 (vacuum) 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 60 second window to allow for
cleaning the glass and removing the clinker
before then Stove shuts down. This is sufficient
for the Daily Maintenance
The St. Croix Pellet Stove has been Safety Tested
by an accredited, independent laboratory.
