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20304166
VCFDVI31 Gas Fireplace Insert
AIR shutteR ADjustMeNt (NAtuRAl GAs ONly)
ADjust the AIR shutteR (FRONt BuRNeR)
The venturi of the front burner is equipped with an air shutter. The opening of the venturi has
been set at 1/4" for Natural Gas and fully open for Propane installation at sea level. The burner
on Natural Gas models may be adjusted for high altitude as follows:
1. Remove top and bottom brackets holding brick sides in place by removing the screws. Care-
fully remove side and rear brick panels.
2. Remove log support bracket by removing two (2) screws in rear and one (1) screw on each
side wall.
3. Remove four (4) screws holding burner in place and slide burner to the left and up and out of
unit, allowing access to venturi air shutter.
4. Adjust air shutter:
•
To increase air mixture, open the shutter more. This will reduce soot formation.
Figure 38
•
To decrease air mixture, close the shutter. Flames will be more yellow.
Figure 39
5. After adjusting air shutter, replace in reverse order.
FP1940
air shutter part open
Air Shutter
FP1940
Figure 38 -
Push Adjustment Lip Up to
Open Air Shutter
FP1941
air shutter fully open
Air Shutter
FP1941
Figure 39 -
Pull Adjustment Lip to Close Air Shutter
