42
440 01 4801 00
Specifications subject to change without notice.
A12220
Fig. 45 -- Sample Inlet Air Pipe Connection for Polypropylene
Venting Systems
A13406
Fig. 46 -- Combustion Air Pipe Attachment
A
A96128
Fig. 47 -- Pipe Vent and Combustion
RECOMMENDED SUPPORT FOR
VENT TERMINATIONS
It is recommended that sidewall vent terminations in excess of
24 inches (.6 M) or rooftop terminations in excess of 36 inches
(1 M) in vertical length be supported by
EITHER
the Direct
Vent Termination Kit shown in Table 12 or by field--supplied
brackets or supports fastened to the structure.
NOTICE
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 the structure, provisions
for adequate combustion, ventilation, and dilution air must be
provided in accordance with:
USA Installations
: Section 9.3 current edition of NFPA
54/ANSI Z223.1 Air for Combustion and Ventilation and
applicable provisions of the local building codes.
Canadian Installations
:
Part 8 of current edition of
CAN/CSA--B149.1. Venting Systems and Air Supply for
Appliances and all authorities having jurisdiction.
!
WARNING
Termination Requirements for the Provinces of Alberta and
Saskatchewan
The Provinces of Alberta and Saskatchewan require a minimum
unobstructed distance of 4 ft. (1.2 M) from the foundation to the
property line of the adjacent lot for vent termination of any
appliance with an input over 35,000 btuh. If there is less than 4 ft.
(1.2 M) of unobstructed distance to the property line of the
adjacent lot, no type of vent termination is permitted for appliances
with inputs greater than 35,000 btuh.
There are no additional restrictions on unobstructed distances
greater than 8 ft. (2.4 M). All single, two-pipe and concentric vents
may be used, providing all other Code and manufacturer’s
requirements in these instructions are adhered to. Refer to the
appropriate
Vent Termination
section above for locating the vent
termination
If the unobstructed distance from the foundation to the property
line of the adjacent lot is no less than 4 ft. (1.2 M) and no greater
than 8 ft. (2.4 M), it will be necessary to re-direct the flue gas
plume. In this situation, a concentric vent kit cannot be used. A
2-pipe termination (or single pipe termination when permitted) that
re-directs the flue gas away by use of an elbow or tee, certified to
ULC S636 from the adjacent property line must be used. See Fig.
49.
The concentric vent kit currently cannot be modified to attach an
elbow to the vent portion of the rain cap. A tee attached to the rain
cap could potentially direct the flue gas plume toward the intake air
stream and contaminate the incoming combustion air for the
furnace.
Refer to Fig. 49 for terminations approved for use in Alberta and
Saskatchewan.