Bryant 987MB Installation, Start-Up, Operating And Service And Maintenance Instructions page 33

987MB: Installation, Start-up, Operating and Service and Maintenance Instructions
need to be re-sized. Vent systems or vent connectors of other appliances
must be sized to the minimum size as determined using appropriate table
found in the current edition of National Fuel Gas Code NFPA 54/ANSI
Z-223.1. In Canada, refer to CAN/CSA-B149.1.
An abandoned masonry chimney may be used as a raceway for properly
insulated and supported combustion-air (when applicable) and vent
pipes. Each furnace must have its own set of combustion-air and vent
pipes and be terminated individually, as shown in
(2-Pipe) system or Fig. 41 for ventilated combustion air option.
A furnace shall not be connected to a chimney flue serving a separate
appliance designed to burn solid fuel.
Other gas appliances with their own venting system may also use the
abandoned chimney as a raceway providing it is permitted by local code,
the current edition of the National Fuel Gas Code and the vent or liner
manufacturer's installation instructions. Care must be taken to prevent
the exhaust gases from one appliance from contaminating the
combustion air of other gas appliances.
Do not take combustion air from inside the chimney when using
ventilated combustion air or single pipe vent option.
These furnaces can be vented as either direct vent (two-pipe) or as
ventilated combustion air system. Each type of venting system is
described below. Common venting between these furnaces or other
appliances is prohibited.
Materials
U.S.A.
Combustion air and vent pipe, fittings, primers, and solvents must
conform to American National Standards Institute (ANSI) standards and
American Society for Testing and Materials (ASTM) standards. See
Table 11 for approved materials for use in the U.S.A. This furnace is also
CSA approved for venting with M&G DuraVentRPolyProR or
Centrotherm InnoflueR polypropylene venting systems - straight pipe
and fittings (elbows, reducers, increasers, connectors, adapters) only.
Canada
Special Venting Requirements for Installations in Canada Installation in
Canada must conform to the requirements of CAN/CSA B149 code.
Vent systems must be composed of pipe, fittings, cements, and primers
listed to ULC S636. M&G DuraVentRPolyProR or Centrotherm
InnoflueR polypropylene venting systems are ULC S636 listed.
NOTE: When using polypropylene venting systems, all venting
materials used, including the vent terminations must be from the same
manufacturer.
Venting Systems
WARNING
!
CARBON MONOXIDE POISONING HAZARD
Failure to follow the instructions outlined below for each appliance
being placed into operation could result in carbon monoxide poisoning
or death.
For all venting configurations for this appliance and other gas
appliances placed into operation for this structure, provisions for
adequate combustion, ventilation, and dilution air must be provided in
accordance with:
U.S.A. Installations: Current edition of Section 9.3 NFPA 54/ANSI
Z223.1, Air for Combustion and Ventilation and applicable provisions
of the local building codes.
Canadian Installations:
CAN/CSA-B149.1. Venting Systems and Air Supply for Appliances
and all authorities having jurisdiction.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Fig. 40 for Direct Vent
Current edition of Part
RECOMMENDED SUPPORT FOR VENT
TERMINATION
It is recommended that sidewall vent terminations of over 24 inches
(0.6 M) in length or rooftop vent terminations of over 36 inches (1 M)
in length be supported by EITHER the factory accessory vent
termination kit or field-supplied brackets or supports attached to the
structure. A factory accessory vent termination kit may be used for
direct vent terminations. Termination kits are available for 2-in. or 3-in.
pipe. See Table 10
8 of
33
NOTICE
!
for available options.