Flame Characteristics; Restricting Vertical Vents - Napoleon BGD40-N Installation And Operating Instructions Manual

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12.3 FLAME CHARACTERISTICS

It's important to periodically perform a visual check of the pilot and burner fl ames. Compare them to the
illustration provided. If any fl ames appear abnormal call a service person.

12.4 RESTRICTING VERTICAL VENTS

Vertical installations may display a very active fl ame. If this appearance is not desirable, the vent exit must
be restricted using a restrictor vent kit. Refer to "ACCESORIES" in the "REPLACEMENTS" section for the
appropriate kit. This will reduce the velocity of the exhaust gases, slowing down the fl ame pattern and creating
a more traditional gentle fl ame appearance. Specifi c instructions are included with the kit.
f i r e - p a r t s . c o m
W415-0811 / D / 08.16.12
PILOT
BURNER
ELECTRODE
FLAME
SENSOR
FLAME MUST ENVELOP
UPPER 3/8" TO 1/2" OF
FLAME SENSOR
54.1A
77.3