ICP F9MAE Installation instructions manual - Notice
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37
Specifications subject to change without notice.
Locating the Vent Termination
General
NOTE: Termination Requirements for the Provinces of
Alberta and Saskatchewan are located at the end of this
section.
Combustion−air inlet pipe (Direct Bent/2−Pipe system only) and
vent pipe must terminate outside structure, either through
sidewall or roof.
For vent termination clearance, references to National codes
are shown in Figure 57
for Direct Vent/2−Pipe system and
Figure 58 for Ventilated Combustion Air system. For exterior
termination arrangements, refer to Figure 57
for Direct
Vent/2−Pipe system and Figure 58
for Ventilated Combustion
Air system. Contact Local code authorities for other
requirements to and/or exemptions from the National codes
shown in the figures.
Roof termination is often preferred since it is less susceptible to
damage or contamination, is usually located away from
adjacent structures, is less prone to icing conditions, and often
has less visible vent vapors. Sidewall terminations may require
sealing or shielding of building surfaces with a corrosive
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 57 or Figure 58 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 57 for references to
vent clearances required by National code authorities.
Allowable vent and combustion air terminations are shown in
Figure 47.
!
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
1−2009, 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 57 for references to vent
clearances required by National code authorities. Allowable
vent terminations are shown in Figure 48. The combustion air
pipe terminates in a well−ventilated attic or crawl space. Follow
the clearances as shown in Figure 55 and Figure 56.
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 44 and Figure 46)
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 44 and Figure 46 for terminations approved for
use in Alberta and Saskatchewan.