mentionnees. Le standard Canadien recommande I'inspection
par un personel qualifie et ce, une fois par annee.
Les autoritees ayant juridiction (inspecteurs de gas, inspecteurs
en b&timents, departement des incendies, etc) devraient _tre
consultees avant I'instatlation afin de determiner si un permis est
requis.
On the N9MPD or *9MPD furnace, the vent and combustion air
pipes attach to the furnace through the top panel for the upflow and
horizontal installations. For the downflow installation, the vent and
combustion air pipes attach to the furnace through the alternate
locations on the furnace side panels.
Note: On the N9MP2 furnace, the vent pipe attaches to the furnace
through the side panels. The combustion air pipe attaches to the
top panel or to the alternate location on the side panel.
On the Single Pipe furnace, the vent pipe attaches to the furnace
through the furnace side panels.
Note: Repositioning of the combustion blower is required for the
vent pipe connection to the furnace through the "right side" panel.
See "Vent and Combustion Air Piping" section for further details.
HorizontalFurnaceInstallation
This furnace can be installed horizontally in an attic, basement,
crawl space, alcove, or suspended from a ceiling in a basement or
utility room. See Figure 5. Do not install furnace on its back or in
the reverse airflow positions as safety control operation will be
adversely affected.
If the furnace is to be installed in a crawl space, consult local
codes. A suitable concrete pad or blocks are recommended for
crawl space installation on the ground.
NOTE: 6" (152.4mm) bottom clearance required for condensate
trap.
24"(609.6mm) between the front of the furnace and adjacent
construction or other appliances MUST be maintained for service
clearance. 30" (762mm) inches is required to remove furnace.
Typical Horizontal Installation
Att i C
Inlet Pipe/(not....used_?_onSinglePipemodel)
Vent
Pipe-_
_ z/ Condensate
.!_ Trap
-%. \J_
25-23-34
NOTE: 6"(152.4mm)bottomclearancerequiredfor condensatetrap.
Auxiliarydrain panis requiredif over a finished living space.
Keep all insulating materials clear from Iouvered door. Insulating
materials may be combustible.
The horizontal furnaces may be installed directly on combustible
wood flooring or supports as long as all required furnace
clearances are met. See Figure 5.
This furnace MUST NOT be installed directly on carpeting or tile or
other combustible material other than wood flooring or supports.
For horizontal installation over a finished living space. A field
fabricated auxiliary drain pan with drain pipe is required to prevent
damage by overflow due to blocked condensate drain.
Combustion & Ventilation Air
For SinglePipeInstallation
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury or death.
Provide adequate combustion and ventilation air.
Use methods described here to provide
combustion and ventilation air.
Furnaces require ventilation openings to provide sufficient air for
proper combustion and ventilation of flue gases. All duct or
openings for supplying combustion and ventilation air must
comply with the gas codes, or in the absence of local codes, the
applicable national codes.
Combustion and ventilation air must be supplied in accordance
with one of the following:
Note: The Combustion & Ventilation Air Section in this document,
uses tables and information from the ANSI Z223.1/NFPA
54. For use in Canada, use CSA B149.1 for this information.
1. Section 9.3, Air for Combustion and Ventilation, of the National
Fuel Gas Code, (NFGC), ANSI Z223.1/NFPA 54-2009 in the
U.S.,
2. Sections 8.2, 8.3, 8.5, 8.6, 8.7, and 8.8 of National Standard of
Canada, Natural Gas and Propane Installation Code
(NSCNGPIC), CSA B149.1-05 in Canada,
3. Applicable provisions of the local building code.
This furnace can NOT be common vented or connected to any
type B, BW or L vent or vent connector, nor to any portion of a
factory-built or masonry chimney. Multistory venting is NOT
permitted. If this furnace is replacing a previously common-vented
furnace, it may be necessary to resize the existing vent and
chimney to prevent oversizing problems for the other remaining
appliance(s). See "Venting and Combustion Air Check" in this
section. This furnace MUST be vented to the outside.
When the installation is complete, check that all appliances have
adequate combustion air and are venting properly. See Venting
And Combustion Air Check in "Gas Vent Installation" Section in
this manual.
OutdoorCombustionAir Method
A space having less than 50 cubic feet per 1,000 BTUH (4.8 cubic
meters per kW) input rating for all gas appliances installed in the
space requires outdoor air for combustion and ventilation.
Air Openingsand ConnectingDucts
1. Total input rating for all gas appliances in the space MUST be
considered when determining free area of openings.
2. Connect ducts or openings directly to the outdoors.
3. When screens are used to cover openings, the openings
MUST be no smaller than 1/4" (6.4mm) mesh.
4. The minimum dimension of air ducts MUST NOT be less than
3" (76.2mm).
10
Specifications are subject to change without notice
44001 102404
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