24
Venting
Attaching Air Restrictors
Two restrictor sets, like the one shown right, are
supplied with each 530 engine unit. The restrictors cover
part of the
inlet air openings
in the
fi
rebox
rear wall
on each side of the brick support.
Do NOT install the
restrictors in the roof of the
fi
rebox!
Each set is assembled with an adjustable piece which
can be moved to different positions depending of the
vent con
fi
guration. See the table below to
fi
nd out
which position is optimal for each type of installation.
• To
fi
t the restrictors, loosen the two center screws
of the left and right inlet ports. Place the restrictor
assembly under the screw heads and tighten the
center screws.
• To set the adjustable restrictor piece, loosen the two
screws, position the adjustable piece according to the
diagram below and tighten the screws.
Adjustable
piece
DO NOT
INSTALL HERE
!
INSTALL HERE
Air Restrictor
Install restrictors in the
inlet air openings
in the
fi
rebox rear wall
behind the rear
log support.
Vertical vent
pipe run
Restrictor setting
Logs/Rocks
Coals
10–40 ft
(3.05–12.2 m)
QUALIFIED
INSTALLER
