Table of Contents
Advertisement
Safety Features
1. "High Limit" switch", an overheat safety switch will shut off the fuel feed if the
Furnace 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 Furnace must be diagnosed before
the Furnace is put back in service, (Defective Room Fan, dirty Room Fan, dirty
Return Air Filter, defective Fan Limit Control or possibly a bad Control Board)
2. Vacuum switch also called the Negative pressure switch. When the Furnace 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 Furnace. If the exhaust venting system becomes clogged
or obstructed, the firebox door is 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 before then Furnace shuts down. This is sufficient for
the Daily Maintenance
3. 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 Furnace 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.
WARNING: These safety features are designed to protect life and property.
Bypassing these features voids all warranties and the safety listing of the Furnace.
The SCF-Revolution has been Safety Tested by an accredited, independent
laboratory.
Pilot Settings &Thermostat Control
The Furnace may be controlled with a thermostat to help maintain a more constant
temperature. A Corn or Pellet furnace will be a little slower in reacting to a thermostat than
the typical Gas, Electric or Oil fired furnace. By using the Trim Button as mentioned on page
29, the feed rate can be adjusted to allow the heat output during the pilot stage to be matched
to the size of the home. A larger home will require more heat than a small one. Keep in mind
that the furnace is constantly producing some heat that helps heat the home while the furnace
is in pilot mode. If the home seems too warm, and the Thermostat is never calling for heat, a
lower pilot setting may be a better fit for the home.
Remember: Choosing a lower Pilot setting may require the damper to be fine-tuned to
match the lower feed rate. Monitor how the furnace is operating after a change is made
and adjust the damper if needed.
SCF-Revolution Manual
39
Hide quick links:
Advertisement
Table of Contents
