Venting Connections - PENSOTTI PNCC-32N Instruction Manual

3.8 Venting connections

Concentric
Before connecting the venting system to
the boiler, be sure to install the correct
Flue Diaphragm into the boiler exhaust
outlet. (see section 3.10 on page 45).
APPLICATIONS
M&G DuraVent's Concentric Stainless (CVS)
vent pipe is listed to UL1738 as a double-wall
vent system for Category II, III, and IV gas
Appliances.
CVS is pressure rated to 10 in-w.c. for the inner pipe.
CVS can also be used as a direct vent
system, where the inner pipe is the exhaust
vent; the outer pipe supplies the combustion
air for the appliance. When installing CVS with
direct vent appliances, the vent is considered
a component of the appliance, and is listed
in conjunction with the appliance to the
corresponding appliance standard. Check with
your appliance manufacturer or look in the
appliance installation instructions to verify that
M&G DuraVent's CVS has been listed as a
direct vent for use with your appliance.
CLEARANCES
CVS is listed to 0" clearance as a doublewall
vent system for Category II, III, and IV
appliances, for flue temperature of up to
400-degrees F for horizontal enclosures,
and up to 480-degrees F for vertical
enclosures.
When CVS is used as a concentric/direct vent
system on gas and installed on a Pensotti Solenne
CLASSIC boiler, clearance to combustibles is 0" .
Never fill any required clearance space with insulation or
any other materials. Combustible materials include, but
are not limited to, lumber, plywood, sheetrock,
plaster and lath, furniture, curtains, electrical wiring, and
building insulation.
INSTALLATION INSTRUCTIONS
PERMITS
Before installation, check with your local
Building Official, Fire Official, or other
authority having jurisdiction regarding permits,
restrictions, and installation inspections in
your area.
GENERAL INSTALLATION NOTES
Read through these installation instructions
before beginning your installation. Proper
planning for your Concentric Stainless Vent
system installation will result in greater safety,
efficiency, and convenience, as well as
saving time and money. You must use only
authorized M&G DuraVent parts, or other
parts specifically authorized and listed by the
appliance manufacturer in order to maintain a
safe, approved system. Do not mix parts or try
to match with other products or use improvised
solutions. Do not install damaged or modified
parts. Practice good workmanship. Sloppy
work could jeopardize your vent's safety. Keep
electrical wiring and building insulation away
from all chimneys and vents. When deciding
the location of your installation, try to avoid
modifications to structural components of the
building. If you have any questions, contact
either your dealer or M&G DuraVent directly.
Check with the appliance manufacturer for
the maximum and minimum allowed vent
runs for your specific appliance model,
including maximum number elbows allowed
in the system. The total vent length from the
appliance to the termination shall not
be greater than what is specified by the
appliance manufacturer. For condensing
appliances, always follow the appliance
manufacturer's recommendation for handling condensate
drainage.
30