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Quadra-Fire • Sapphire • 7055-116 Rev. D • 6/11
See vent graph for recommendations on page 11 before
you begin your adjustment. If your installation falls within
the range of the gray shaded area of graph, it may be
necessary to make an adjustment to the vertical fuel restrictor
to improve the flame appearance in your appliance.
2. Rear Vent Installations:
1. Top Vent Installations:
CLOSED
OPEN
Figure 8.25 The shutter is located on the underside of the
appliance, on the right side. To adjust the shutter, loosen
the wingnut.
Moving the shutter bolt to the right closes the shutter. Moving
the shutter bolt to the left, will open the shutter. Opening the
shutter causes flames to become shorter and blue. Closing
the shutter creates taller orange/yellow flames.
NOTE: Do not close so much as to cause a sooty flame.
Improper adjustment can cause sooting in the firebox and/
or on the outside of a house with a horizontal termination.
After adjustment, tighten wingnut to lock in place.
L. Intake Fuel Restrictor Adjustment
Let appliance warm up before adjusting.
Loosen screws using a Phillips head screwdriver.
Pivot the vertical fuel restrictor in 1/4 in. (6mm) increments
while observing the fl ame activity.
Turning clockwise to open fuel restrictor = less fl ame height
and more blue in fl ame color.
Turning counterclockwise to close fuel restrictor = increased
fl ame height and more yellow in fl ame color.
Make adjustment until fl ame size and activity suits your per-
sonal preference, and then retighten screws on adjustment
control.
Figure 8.23 Locate the fuel restrictor adjustment on the intake
plenum, accessing through the appliance front. Adjustor is
centered at the top of the appliance.
Figure 8.24 The rear vent fuel restrictor is located in the back
of the fi rebox. It is recommended to make adjustment prior
to installation.
Remove the cast front, glass, logs, and brick.
Loosen screws and slide up to suggested settings (See vent
graph on page 11).
Tighten screws.
Re-install cast front, glass, logs and brick.
M. Shutter Adjustment
(For top or rear vent installations)
OPEN
CLOSE
Shown Fully Open