St. Croix SCF-Revolution Installation & Operation Manual page 36

2. Lag time. This is the time it takes for the corn to start burning and the burn pot to
become balanced. Corn will tend to stick together in a clump in the burn pot if the
corn feeds in faster than it's burning.
3. Overloaded burn pot. Once the corn has formed a clump in the burn pot the pot
will overload and slowly the fire will die out.
Procedure for adjusting the damper for burning Corn, Wheat, Rye &
Distiller's Grain:
a. Once the Furnace is burning, leave the control board on the #1 setting for ½ an
hour. This will allow the Furnace to warm up before any adjustments to the
damper are made. After ½ an hour, look in the burn pot to see if the burn pot is
balanced. Unless there weren't enough coals in the pot when the corn started
feeding into the pot during start up, the Furnace should be burning fine and an
adjustment is most likely not needed.
b. Advance the heat setting to #2 and let the Furnace burn at this setting for ½ an
hour. Check the burn pot to see if it is balanced. Most likely the Furnace will be
burning fine at this point, because the damper was preset at the factory.
c. Advance the heat setting to #3 and let the Furnace burn at this setting for ½ an
hour. Check the burn pot to see if it is balanced. Remember: Look at the coals in
the pot, not at what the flame looks like. Most likely the damper will not need to
be adjusted.
d. Advance the heat setting to #4 and let the Furnace burn at this setting for ½ an
hour. Check to see if the pot is balanced. This is where a damper adjustment
might need to be made. As the heat setting reaches the higher settings the "Lag
time" can become too long if the air isn't adjusted correctly. If you notice that the
coals are being covered up with unburned corn, adjust the damper to give it more
air. Remember: Only turn the setscrew one ½ turn clockwise to open the damper
(You might need to use a screwdriver to break up the clump of corn in the burn
pot to allow for proper airflow). Wait 15 minutes to see if the burn pot becomes
balanced. Repeat this step as many times as needed until the burn pot becomes
balanced.
e. Advance the heat setting to #5 and let the Furnace burn at this setting for ½ an
hour. Check the burn pot to see if it is balanced. A small damper adjustment
might need to be made at this time to make sure the "Lag time" isn't too long.
Remember: Only turn the setscrew one 1/2 turn clockwise to open the damper.
Wait 15 minutes to see if the burn pot becomes balanced. Repeat this step as
many times as needed until the burn pot becomes balanced.
SCF-Revolution Manual
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