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10
MONITORING THE GAS FLAME
Periodically, the ames of the Clarity B-Vent Gas Heater
should be checked while it is operation. The ames should
be relatively well-dened and stable. They should be bright
yellow with a blue base where attached to the burner ports.
The ames should not look orange or sooty. Portions of the
logs will glow red when the ames are properly adjusted.
If you nd the ames to be other than that described here,
do not operate the heater. Consult a qualied service person
or your Harman dealer for advice.
AIR SHUTTER ADJUSTMENT
The nal step of the installation is to check the ame
pattern, which should resemble the pattern illustrated in the
right column: The ames should be relatively well-dened
and stable. They should be bright yellow with a blue base
where attached to the burner ports, and should not look
orange or sooty.
Start the heater according to the directions on page 11 and
allow the heater to burn for approximately 15 minutes. The
ames will increase in length and become more yellow in
color as the Clarity heats up.
If the ames do not resemble the description above and
the illustration in the right column, the air shutters may be
adjusted.
Three separate screws—one for each burner—are used to
adjust the ames for a particular installation. Two of them
are accessible through the side access port on the right side
of the stove. The third is accessible from the front when the
control door is open. The screws may become hot to the
touch after prolonged operation. Use a 3/16" Allen wrench
to avoid contact if hot. For best results when ne-tuning the
ame picture, initially leave the middle screw unchanged
from its factory setting. Turn the other two screws as needed
to increase or decrease the brightness and length of the ame:
turning counterclockwise will increase the ame; turning
clockwise will decrease the ame.
1. To adjust the rear burner, open the right wing door,
reach through the side access port, and turn the rear screw
to adjust ame (see directions above).
2. To adjust the front burner, rst open the control door,
then turn the front screw to adjust ame (see directions
above).
Repeat procedure as needed until desired ame effect is
achieved.
Rear burner
Center burner
Front burner
Air adjustment screws
The properly-burning pilot
will resemble the illustration
to the right.
The Clarity ame pattern will resemble this when the unit is
burning properly.