31
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Flame Color and Behavior
Your Ravelle™ 30 gas fireplace is designed for maximum heating ef-
ficiency. Therefore, upon lighting of the main burner the flames will be
semi-transparent or “bluish.” After 10-20 minutes of operation the logs
will heat up and the flames will become a yellow/orange color.
Adjusting the fireplace to cause the flames to turn orange sooner may
result in poor combustion, sooting and a hazardous situation. See Figure
35 showing proper flame appearance.
When testing for proper operation - If an optional thermostat is installed
adjust it to its highest temperature setting. Visually determine that main
burner gas is burning properly: i.e., no floating, lifting or flashback.
Adjust the primar y air shutter(s) as required. Check for proper main
burner operation at both high and low flame.
No Blue Flame
Center
Soot at
Flame Tip
Dark Orange
Flame
IMPROPERLY
BURNING FLAME
Soot above
Flame Tip No Soot at
Flame Tip
PROPERLY
BURNING FLAME
Semi-Transparent
Yellow Flame
Blue Flame
Center
Ports on Burner
Assembly
Burner Flame Appearance
Figure 35
Air Shutter
Control
Lever Gas Valve
Air Shutter Adjustment
The Ravelle™ 30 gas fireplace has an air shutter control lever located
behind the lower door on the fireplace face and to the left of the gas
valve (see drawing below). The lever is linked to the primary air shutter
on the main burner. The air shutter regulates the amount of primary air
the burner receives and therefore how clean the fireplace burns. The
air shutter should only be adjusted by a qualified gas technician. The
fireplace should burn for about 15 minutes with the logs installed before
adjusting the air shutter. Moving the lever up will open the shutter and
turn the flames more transparent and blue. Moving the lever down will
close the shutter and turn the flames more orange.
CAUTION: The air shutter should never be set so as to make the tips of the flames sooty or create sooting on the viewing glass, logs, or heat exchanger. If soot begins to form after burning, the air shutter should be opened gradually until the sooting condition stops. Gas quality and gas pressure may vary, which can affect the burning characteristics of the fireplace.Figure 36