INSTALLATION INSTRUCTIONS Gas Furnace: (F/G)9MAE
440 01 4300 02 37
Specifications subject to change without notice.
resistance material due to the corrosive properties of
combustion products from vent system as well as protection of
adjacent structures.
NOTICE
Recommended Support for Vent Terminations
It is recommended that side-wall vent terminations in excess
of 24 inches (0.6 M) or rooftop terminations in excess of 36
inches (1.0 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.
When determining appropriate location for termination, consider
the following guidelines:
1. Comply with all clearance requirements stated in
Figure 58 or Figure 59 per application.
2. Termination or termination kit should be positioned where
vent vapors will not damage plants/shrubs or air
conditioning equipment.
3. Termination or termination kit should be positioned so
that it will not be affected by wind eddy, such as inside
building corners, nor by recirculation of flue gases,
airborne leaves, or light snow.
4. Termination or termination kit should be positioned where
it will not be damaged by or subjected to foreign objects
such as stones, balls, etc.
5. Termination or termination kit should be positioned where
vent vapors are not objectionable.
Direct Vent / 2−Pipe System
Direct vent (2−pipe) vent and combustion air pipes must
terminate outside the structure. See Figure 58 for references to
vent clearances required by National code authorities.
Allowable vent and combustion air terminations are shown in
Figure 46.
!
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 the
structure, provisions for adequate combustion,
ventilation, and dilution air must be provided in
accordance with:
U.S.A. Installations: Section 9.3 NFPA 54/ANSI Z223.1
1−2012, Air for Combustion and Ventilation and applicable
provisions of the local building codes.
Canadian Installations: Part 8 of CAN/CSA−B149.1−10.
Venting Systems and Air Supply for Appliances and all
authorities having jurisdiction.
Ventilated Combustion Air
The vent pipe for a Ventilated Combustion Air System must
terminate outdoors. See Figure 58 for references to vent
clearances required by National code authorities. Allowable
vent terminations are shown in Figure 47. The combustion air
pipe terminates in a well−ventilated attic or crawl space. Follow
the clearances as shown in Figure 56 and Figure 57.
The combustion air pipe cannot terminate in attics or crawl
spaces that use ventilation fans designed to operate in the
heating season. If ventilation fans are present in these areas,
the combustion air pipe must terminate outdoors as a Direct
Vent System.
Termination Requirements for the
Provinces of Alberta and Saskatchewan
The Provinces of Alberta and Saskatchewan require a
minimum unobstructed distance of 4 ft. (1.2m) 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. (1.2m) 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. (2.4m). All single, 2-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. (1.2m) and no
greater than 8 ft. (2.4m), 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 Figure 43 and Figure 45)
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 Figure 43 and Figure 45 for terminations approved for
use in Alberta and Saskatchewan.
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