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12 - INSTALLATION - CATEGORY IV: Vent and combustion air
12.8 - Polypropylene
vent piping materials
WARNING!!!
Use only
the materials listed in Figures
12-7 and 12-8
for vent pipe,
and fittings. DO NOT mix vent
systems of different types or
manufacturers, unless listed in
this manual. Failure to comply
could result in severe personal
injury, death, or substantial
property damage.
WARNING!!!
This appliance
requires a special venting
system. The field provided vent
fittings must be connected to the
heater following Section 12.8.2.
Failure to follow this warning
could result in fire, personal
injury, or death.
WARNING!!!
Do not
insulate polypropylene
exhaust pipe nor install into
an enclosure, closet, alcove or
any other obstruction thereby
preventing the cooling of the
exhaust pipe. Failure to follow
this warning could result in
excessive levels of carbon
monoxide or a fire, which can
result in severe personal injury
or death!
WARNING!!!
Improper
installation of Polypropylene
systems may result in injury or
death.
WARNING!!!
Use only
water-based lubricants on joints.
Never use hydrocarbons-based
lubricants because they would
destroy gaskets. Failure to
follow this warning could result
in excessive levels of carbon
monoxide, which can result
in severe personal injury or
death!
NOTICE!
Installation must comply
with local requirements and with the
National Fuel Gas Code, ANSI Z223.1
for U.S. installations or CSA B149.1 for
Canadian installations.
For installation in Canada, vent pipe
system must be certified to ULC-S636
(see Figure 12-7).
NOTICE!
All vent pipes connections
must be secured following manufacturer
instruction, properly supported, and the
exhaust must be pitched a minimum of
a 1/4 inch per foot back to the heater (to
allow drainage of condensate).
NOTICE!
Installation of a
Polypropylene vent system should
adhere to the polypropylene vent
manufacturer’s installation instructions
supplied with the vent system.
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