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W415-0811 / A / 04.28.10
12.3 FLAME ADJUSTMENT
H I
LO
Turn clockwise to
increase
fl
ame height
FLAME
ADJUSTMENT
KNOB
P
I
PILOT
N
O
L
O
T
H I
LO
FF O
12.5 RESTRICTING VERTICAL VENTS
SCREWS
Vertical installations may display a very active
fl
ame. If
this appearance is not desirable, the vent exit must be
restricted using the optional restrictor vent kit, RP40-KT.
This will reduce the velocity of the exhaust gases,
slowing down the
fl
ame pattern and creating a more
traditional gentle appearance.
12.5.1
Open the glass viewing door.
12.5.2
Remove the three screws for mounting the
restrictor plate located in the top of the
fi
rebox.
12.5.3
Line up the holes on vent restrictor plate with
the three holes from which the screws were
removed.
12.5.4
Secure the vent restrictor plate into position
using the three screws removed in step 2.
12.5.5
Replace the viewing door.
12.4 FLAME CHARACTERISTICS
It’s important to periodically perform a visual check of the pilot and burner
fl
ames. Compare them to the illustra-
tions provided. If any
fl
ames appear abnormal call a service person.
3/8” - 1/2”
PILOT
BURNER
FLAME MUST ENVELOP
UPPER 3/8” TO 1/2” OF
FLAME SENSOR
FLAME
SENSOR
ELECTRODE
54.1