PENSOTTI PNCC-32N Instruction Manual page 38

INSTALLATION INSTRUCTIONS
Vertical Installation:
If the vent pipe is to pass through a cold attic space. Vent
pipe MUST be insulated with the proper insulation
material.
1. Install Appliance. Determine where
your appliance will be installed and follow
the Appliance manufacturer's installation
instructions accordingly.
2. Determine the location of your ceiling
and/or roof penetration. Avoid cutting floor or
roof supporting members. Always make sure
to follow the appliance manufacturer's required
minimum clearance to combustibles.
3. Cut and frame floor penetration
openings. Cut and frame 7-1/2" x 7-1/2"
openings at each floor level through which
the CVS vent system will penetrate. The
opening at the roof does not require framing.
Vertical installations of the CVS vent need to
be supported. A Firestop Support is required where the
vent system passes through the first
floor, and additional Firestops are required at
each floor opening, except the roof. Follow
the appliance manufacturer's requirements for
minimum clearance to combustibles
4. Install Firestop Support(s). At each framed
floor opening, install a Firestop Support. The
Firestop Support is listed to support up to 40-ft
of CVS vent pipe. The Firestop Support is
installed from underneath the opening, held in
place by (4) 1-1/2" wood screws in the corners
(Fig 6). From the other side, extend the straps
of the Firestop Support and secure them to
nearby framing members with additional 1-1/2"
wood screws. As the vent passes through the
Firestop Support, install the clamp around the
vent and tighten withthe screws provided, so the weight of
the vent is supported by the
Firestop Support (Fig 6).
35