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7.3FLAME CHARACTERISTICS
It’s important to periodically perform a visual check of the pilot and burner flames. Compare them to the illustra- tions provided. If any flames appear abnormal call a service person.
PILOT3/8” - 1/2”
BURNER
ELECTRODE
FLAME
SENSOR
FLAME MUST ENVELOP
UPPER 3/8” TO 1/2” OF
FLAME SENSOR
54.1
7.4RESTRICTING VERTICAL VENTS - MODEL GDS28
Vertical installations may display a very active flame. If this appearance is not desirable, the vent exit must be restricted using the restrictor vent kit,