23
W415-1004 / B / 08.10.12
4.1.1 HORIZONTAL INSTALLATION
This application occurs when venting through an exterior wall.
Having determined the correct height for the air terminal
location, cut and frame a hole in the exterior wall as
illustrated to accommodate the
fi
restop assembly.
Dry
fi
t the
fi
restop assembly before proceeding to
ensure the brackets on the rear surface
fi
t to the
inside surface of the horizontal framing.
The length of the vent shield may be cut shorter
for combustible walls that are less than 8 1/2” thick
but the vent shield must extend the full depth of the
combustible wall.
A. Apply a bead of caulking (not supplied) around the corner edge of
the inside surface of the
fi
restop assembly,
fi
t the
fi
restop
assembly to the hole and secure using the 4 screws (supplied in your
manual
baggie).
B. Once the vent pipe is installed in its
fi
nal position, apply high temperature sealant W573-0007 (not
supplied) between the pipe and the
fi
restop.
DETERMINE
THE
CORRECT
HEIGHT
CAULKING
FIRESTOP
SPACER
VENT
SHIELD
FINISHING
MATERIAL
20.2
!
WARNING
THE FIRESTOP ASSEMBLY MUST BE INSTALLED WITH THE VENT SHIELD TO THE TOP.
TERMINALS MUST NOT BE RECESSED INTO A WALL OR SIDING MORE THAN THE DEPTH OF THE
RETURN FLANGE OF THE MOUNTING PLATE.
4.1.2 VERTICAL INSTALLATION
This application occurs when venting through a roof. Installation kits for
various roof pitches are available from your authorized dealer / distributor. See
accessories to order speci
fi
c kits required.
A.
Determine the air terminal location, cut and frame a square opening as
illustrated in the ceiling and the roof to provide the minimum 1“ clearance
between the vent pipe and any combustible material. Try to center the vent
pipe location midway between two joists to prevent having to cut them. Use
a plumb bob to line up the center of the openings. A vent pipe shield will
prevent any materials such as insulation, from
fi
lling up the 1” air space
around the pipe. Nail headers between the joist for extra support.
B.
Apply a bead of caulking (not supplied) to the framework or to the Wolf
Steel vent pipe shield plate or equivalent (in the case of a
fi
nished
ceiling), and secure over the opening in the ceiling. A
fi
restop must be
placed on the bottom of each framed opening in a roof or ceiling that the
venting system passes through. Apply a bead of caulking all around and place a
fi
restop spacer over the vent shield to restrict cold air from being drawn into the
room or around the
fi
replace. Ensure that both spacer and shield maintain the
required clearance to combustibles. Once the vent pipe is installed in its
fi
nal
position, apply sealant between the pipe and the
fi
restop assembly.
C.
In the attic, slide the vent pipe collar down to cover up the open end of the shield and
tighten. This will prevent any materials, such as insulation, from
fi
lling up the 1” air space
around the pipe.
21.1
CAULKING
VENT PIPE
SHIELD
FIRESTOP
UNDERSIDE OF
JOIST
VENT
PIPE
COLLAR
VENT
PIPE
SHIELD
9 3/4"
9 3/4"
