Mendota FV42, Инструкция по установке и эксплуатации

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85-03-01109 FV42 Page 71
4.14 AIR SHUTTER CONTROL AND FLAME APPEARANCE
During initial installation, the air shutter opening should be checked to be certain that the shutter is set correctly at 1/8" open
for natural gas and.1/4”- 1/2" open for L.P. gas. NOTE: For altitudes above 5,000’, some variations may be required.
Be sure burner and logs are properly installed. After log set has been properly installed, adjustments to the air shutter shall be
made for final flame appearance. These small shutter adjustments can be made by the following procedure:
NOTE: All adjustments to the air shutter setting must be made by a qualified installer, service agency, or the
gas supplier. Very small changes in shutter settings make major changes in flame appearance.
The burner air shutter adjustment cables are located in the air gap on the left side of the glass door frame. The top cable will
adjust the rear burner and the bottom cable will adjust the front burner. To open or close the air shutter insert the glass latch
tool tip in the ring terminal’s ring hole. Push the cable to close the air shutter or pull on the cable to open the air shutter.
1. If flame is too blue, close air shutter in small 1/8" increments until flame turns desired realistic yellow. Use glass latch
tool to hook end and slide control.
2. If flame is causing soot on viewing glass, open air shutter fully until sooting stops. Continue burning unit with air
shutter fully open for four to six hours until all internal deposited soot has burned off.
3. Once deposited soot has disappeared, close air shutter in increments of 1/8”.
LPG Air shutter settings hint: A properly adjusted air shutter setting will yield burner flames that have an
approximate 2” high blue color base. If yellow colored flames are starting at burner level, air shutter is
closed too far and will create soot. If you observe that the flame is yellow starting very close to or at the
burner surface level, open air shutter. Also, if a log or part of a log is suspended and hanging inside a yellow
portion of the flame, soot can form easily on the part of the log that is inside the yellow flame area.
IMPORTANT: Try each new shutter setting approx. ½ hr. before making additional changes. NOTE: Changes
in front burner flame can be made by re-arranging the coals and front burner air shutter opening.
Figure 4-22 Burner Air Shutter Controls
REAR BURNER ADJUSTMENT
FRONT BURNER ADJUSTMENT