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Problems With the Flame Pattern
Tall, narrow, yellow flames
These flames can soot the vent system and may be the
result of insufficient oxygen supply. Check for correct air
volume by measuring the opening
ter.
Correct opening dimensions are normally:
For Propane - Open 8.5 mm
For Natural Gas - Open .5 mm
Warning! To avoid burns, do not adjust the air open-
ing until the burner has cooled down. Blocked orifice:
Make sure the main orifice (fig.8) is dirt-free and that the
orifice has the appropriate size. See technical data.
Poor draught in the vent system may be due to
improper installation or because the vent has no climb
towards the chimney.
Tall, blue flames
The cause may be too much oxygen. Check for correct air
volume by measuring the opening (fig. 0) at the air shut-
ter. The cause may also be that the gas pressure is too
high. Check the gas pressure as described in the section
about gas pressure on page 0.
(fig.)
at the air shut-
Burner Orifice
Figure 28. Remove burner assembly and burner skirt
to access the burner injector. Check orifice for debris.
7
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