I. Vertical Damper Adjustment
Refer to the vent graph on page 11. 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 damper to improve the flame appearance in your appliance.
J. Shutter Adjustment
OPENCLOSE
Figure 8.13 The vertical damper adjustment is located on the right side of the unit behind the side curtain. The damper is centered towards the top of the unit.
Loosen screws using a Phillips screwdriver.
Pivot the vertical damper adjustor in 1/4 in. increments while observing the flame activity.
Turn clockwise to open the damper = less flame height and more blue in flame color.
Turn counterclockwise to close damper = increased flame height and more yellow in flame color.
Make adjustment until flame size and activity suits your personal preference, and then retighten screws on adjustment control.
NOTE: In the Commonwealth of Massachusetts, the word damper shall be replaced with the words flue restrictor.
Figure 8.14 The shutter is located on the underside of the appliance, on the right side. To adjust the shutter, loosen the wingnut.. Retighten the wingnut after adjustment.
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 nut to lock in place.
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| 10/08 |
