Derating Procedure:
1.To derate this unit, install the appropriate orifice per the High Altitude chart.
2.Remove the log support/burner tube to expose the main burner orifice.
3.Using a 1/2” open ended wrench or a
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 21. This label must be filled out and applied to the appliance by the installer.
Flame Appearance / Air Shutter Adjustment
The GF100 DV NORDIC QT gas stove is shipped from the factory equipped to burn Natural gas. If the stove has been converted for use with propane, will require adjust- ment. THE AIR SHUTTER SHOULD BE SET:
1/4” open for natural gas
3/4” open for propane
The air shutter setting can also be adjusted to achieve the desired flame appearance. Generally, flame appear- ance is a matter of preference, however most people enjoy a warm yellowish flame.
Too large an opening - the appliance will generate a flame that is blue and transparent, or an “anemic” flame.
Too small a setting - the appliance 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.
To adjust the air shutter:
1.Remove the Log Set.
2.Remove the burner tube by lifting it forward.
3.Use a phillips head screwdriver loosen to the screw at the air shutter and adjust as necessary for the appro- priate fuel and desired flame picture. Retighten the screw after adjustment. See fig. 22.
4.Reassemble the stove. Allow it to burn for 30 minutes on the HIGH setting, observing the flame continuously. If the flame appears weak, slow, or sooty, repeat the process described above until the flame is as desired.
WARNING: AIR SHUTTER ADJUSTMENTS SHOULD ONLY BE PERFORMED BY A QUALIFIED PROFESSIONAL SERVICE TECHNICIAN.
BURNER
TUBE
ORIFICE
AIR SHUTTER
Figure 22.
The Air Shutter should never be less than 1/8” open.
17
