Jotul GF 100 DV II - Manual (Page 19)

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GF 100 DV II Nordic QT
GF 200 DV II Lillehammer
Flame Appearance -
Air Shutter Adjustment
WARNING: AIR SHUTTER ADJUSTMENTS SHOULD ONLY BE
PERFORMED BY A QUALIFIED PROFESSIONAL SERVICE
TECHNICIAN.
The air shutter setting at the burner orifice can be
adjusted to achieve the desired flame appearance. The
shutter is set in the mid-range at the factory, however,
you will want to adjust it if a fuel conversion kit has been
installed or if the flame pattern is not as desired. The
adjustment stem is located under the firebox, directly
behind the gas control valve. Generally, flame appearance
is a matter of preference, however most people enjoy a
warm yellowish flame.
Too much air - the appliance will generate a flame
that is blue and transparent, or an “anemic” flame.
Not enough air - the burner will generate very long
yellow flames resulting in soot. Sooting produces black
deposits on the logs, on the inside walls of the appliance,
and potentially on the exterior termination cap.
Sooting is caused by incomplete combustion in the
flames and lack of combustion air entering the air shutter
opening. Open the shutter setting to allow more air.
To adjust the air shutter:
1. Locate and loosen the adjustment stem wingnut
protruding from the bottom of the firebox, directly
behind the gas valve. See fig. 26.
2. Push the stem back to decrease air, or pull it forward to
increase air. Make adjustments in small increments
(1/8”) and allow the burner to “ settle in” for a few
minutes before making another one. Small shutter
adjustments can produce dramatic changes to flame
characteristics.
4. Re-tighten the wing nut when the desired flame
appearance has been achieved.
Close Open
Figure 26.
Air Shutter adjustment
Derating Procedure:
1. To derate this unit, install the appropriate orifice per
the High Altitude chart.
2. Remove the Burner Skirt and Burner Plate to expose
the main burner orifice.
3. Using a 1/2” open ended wrench or a deep-well
socket remove the burner orifice.
4. Replace with the appropriate orifice from the high
altitude kit.
5. Be sure to apply the high altitude conversion label
provided to the rating plate on the appliance.
THIS STOVE HAS BEEN CONVERTED FOR USE AT AN
ALTITUDE OF: ________________
Orifice Size: ____________ Manifold Press. _____
Input Btu/Hr. ___________ Fuel Type __________
Date of Conversion ___________
Figure 25. This label must be filled out and applied to the
appliance by the installer.
High Altitude Orifice Chart
GF 200 DV II Only
Elevation Fuel Part No.
0 - 2000 ft. Natural Gas #46 220975
(0 - 610 m) Propane 1.20 mm 221185
2001 - 4500 ft. Natural Gas #47 220976
(611 - 1370 m) Propane #56 129466
Orifice
Size