NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
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INNOVATIVE HEARTH PRODUCTS • POWER VENT DV GAS FIREPLACES (DRT6340TYN AND DRT6345TYN) • INSTALLATION INSTRUCTIONS
Air Shutter Adjustment Guidelines
Amount of
Primary Air
Flame
Color
Air Shutter
Adjustment
If air shutter is
closed too far
Flame will
be orange
Air shutter
gap should be
increased
If air shutter is
open too far
Flame will
be blue
Air shutter
gap should be
decreased
To adjust the flame, move the adjustment air
shutter (located on the lower venturi) back or
forward to increase or reduce the air shutter
opening, respectively. Position the air shutter to
the factory setting as shown in
Figure 40
. Allow
the burner to operate for at least 15 minutes.
Observe the flame continuously. If it appears
weak or sooty as previously described, adjust
the air shutter until the flame appearance is
as desired.
When satisfied that the appliance operates
properly, finish the installation. Leave the
ON/REMOTE/OFF wall switch in the REMOTE
position and turn the remote switch OFF.
Use the remote to adjust the flame height
as desired.
CAUTION
Soot will be produced if the
air shutter is closed too much.
Any damage due to carboning
resulting from improperly setting
the air shutter is not covered
under the warranty.
Air Shutter
Opening
Burner
Orifice
Gas
Valve
Venturi
Venturi
Main Burner Factory Air Shutter
Opening Setting - Inches (millimeter)
Model
Nat.Gas
40"
1/8" (3.18 mm)
45"
1/8" (3.18 mm)
WARNING
• Air shutter adjustment should
only be performed by a quali-
fied professional service tech-
nician.
• Ensure that the front glass
door assembly is in place and
sealed After adjustment.
Burner Air Shutter Adjustment Procedure
Figure 40 - Air Shutter Adjustment
Figure 41 - Burner Flame Appearance
• An appliance operated with the air shutter
opened too far, may have flames that appear
blue and transparent. These weak, blue and
transparent flames are termed anemic.
The following chart is provided to aid in correctly
adjusting the air shutter.
f i r e - p a r t s . c o m