DuraVent FasNSeal W2 Double-Wall - Manual (Page 4)

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INTRODUCTION
FasNSeal W2, manufactured by DuraVent, is a
Double-Wall special stainless steel vent system
for gas fired appliances listed as Category II,
III, and IV or in Canada, type BH Gas Venting
Systems as noted in ULC-636, with a rated
operating temperature of 480 Degrees F (249
Degrees C), and a rated positive pressure of 6”
Water Column.
FasNSeal W2 must be installed by an
experienced professional familiar with
the operation and maintenance of heating
appliances and venting. Before installing
this product, examine all components
for possible shipping damage and read
the complete installation manual. Failure
to follow proper installation procedures,
including vent pitch and improper appliance
connections may cause unsafe conditions.
DuraVent recommends the system to be
inspected once a year by a qualified service
technician.
When venting Category II, III, or IV appliances,
FasNSeal W2 must be used for the entire
length of the system. Do not mix pipe, fittings,
or joining methods from different manufacturers.
See the DuraVent catalog number L820 for
a complete list of parts and products. every
vent system must be planned and installed
for optimum performance and safety. the
venting system must be free to expand and
contract and must be supported in accordance
with these instructions. (Check for unrestricted
vent movement through walls, ceilings, and
roof penetrations). Refer to the gas appliance
manufacturer’s instructions to determine venting
requirements and limitations with respect to
installation and use of the appliance.
It is the responsibility of the installer to
contact local building and fire officials
concerning any installation restrictions
and/or inspection requirements that may
apply.
Permits may be required before starting an
installation. this product must be installed
in accordance with local building code
requirements as well as National codes: USa -
National Fuel Gas Code aNSI-Z223.1 or NFPa
Standard 54, or NFPa 211. In CaNaDa - CaN/
CGa-B149.1 or CaN/CGa-B149.2 Propane
Installation Code as applicable.
GENERAL INSTALLATION
REQUIREMENTS
Failure to conform with these installation
instructions and all applicable codes may
result in catastrophic property damage,
personal injury, or death. these instructions
are a guide to assist a professional installer.
• Proper operation of the vent system and
appliance depends on the use and correct
assembly of all parts specified for a particular
installation.
• tee sections should only be incorporated
in conjunction with a drain on appliances
tested for use with a drain, or if allowed by the
appliance manufacturer for multiple appliance
connections.
• If required by the appliance manufacturer,
a drain fitting must be located as close
as possible to the appliance flue outlet.
Depending on the arrangement of the vent,
more than one drain may be required.
Unless a drain fitting is supplied with the
appliance, install a FasNSeal W2 Drain Fitting.
• More than one Category II, III or IV appliance
may not be connected into the same vent
system, unless the appliance manufacturer
specifically approved such a system and the