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W415-0570 / E / 04.23.12
9.3 FLAME
CHARACTERISTICS
It’s important to periodically perform a visual check of the pilot and
burner
fl
ames. Compare them to the illustrations provided. If any
fl
ames
appear abnormal call a service person.
54.2
3/8” - 1/2”
FLAME MUST
ENVELOP UPPER
3/8" TO 1/2" OF
THERMOCOUPLE &
THERMOPILE
9.4 RESTRICTING VERTICAL VENTS
77.3
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 ap-
propriate 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. Speci
fi
c instructions are included with the kit.
