St. Croix SCF-Revolution Installation & Operation Manual page 37

If the Furnace has been connected to an existing Chimney system that has good
natural draft, the procedure mentioned in the last 2 points above may actually
require that the damper gets closed slightly instead of opened to compensate for the
additional draft in the chimney system.
The process of adjusting the damper when burning Corn will take about 3 hours, but it
only needs to be done once at the initial burn. This will adjust the Furnace to the venting
system of your furnace.
Procedure for adjusting the damper when burning Pellets & Cherry Pits:
When burning pellets & Cherry Pits in the Furnace, the adjustment to the damper will most
likely need to be made when the Furnace is running in the pilot mode.
a. If a heavy black shiny build (difficult to wipe off) up is noticed, on the glass and inner
surfaces, after the furnace runs on the low (pilot) setting for extended periods of time,
the damper must be closed some. This may require the Furnace to run in pilot mode
for a while to become noticeable. If this build-up is noticed, close the damper 50% to
start out with, and place the setscrew against the damper blade. Use this as the
starting point to make additional adjustments with the setscrew. Some build up is
normal and may be removed during the maintenance schedule.
b. Once the adjustment has been made for the pilot setting, slowly advance the Furnace
to the #5 Heat Level and observe the flame. If black soot (wipes off easily) builds up
on the glass and black smoke is visible at the tips of the flames turn the setscrew one
½ turn counterclockwise and bring the damper blade up against the screw. Wait 5 –
10 minutes before attempting another adjustment. An occasional wisp of black smoke
is normal every now and then.
SCF-Revolution Manual
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