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by duct(s) sealed to the furnace casing
and terminating outside the space
containing the furnace.
8. A gas-fired furnace for installation in a
residential garage must be installed as
specified on Page 7 of these instructions.
9. The furnace is not to be used for temporary
heating of buildings or structures under
construction.
INSTALLATION REQUIREMENTS
Requirements and Codes
This furnace must be installed in accordance
with these instructions, all applicable local building
codes, current revision of the National Fuel
Gas Code (ANSI-Z223.1), and in Canada with
the CAN/CGA - B149 installation code. The
current revision of the National Fuel Gas Code
is available from:
American National Standards Institute,
Inc.
1430 Broadway
New York, New York 10018
Additional helpful publications are:
NFPA-90A - Installation of
Air Conditioning and Ventilating Systems
NFPA-90B - Warm Air Heating
and Air Conditioning Systems
These publications are available from:
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, Massachusetts 02269
WARNING:
!
This furnace is not approved for
installation in mobile homes. Installation
in a mobile home could cause fire,
property damage, and/or personal
injury.
Location
These gas furnaces are shipped ready for
installation in the upflow, horizontal right or left
positions. The furnace must be installed on a
level surface, located close to the vent (or
chimney) and as close to the center of the air
distribution system as possible. See Table 1 for
overall dimensions to determine the required
clearances in hallways, doorways, stairs, etc.
to allow the furnace to be moved to the installation
point. The furnace must be installed so that all
electrical components are protected from water.
The furnace must be installed upstream from a
refrigeration system. This furnace is not to be
used for temporary heating of buildings or
structures under construction.
Horizontal Furnace Installation
The furnace can be installed horizontally in an
attic, basement, crawl space or alcove. It can
be suspended from a ceiling in a basement or
utility room in either a right to left airflow or left to
right airflow. (See Figures 2 and 3.)
If the furnace is to be suspended from the
ceiling, it will be necessary to use steel straps
around each end of the furnace. These straps
should be attached to the furnace with sheet
metal screws and to the rafters with bolts. The
furnace could also be suspended by an angle
iron frame bolted to the rafters. (See Figure 2.)
Access for positioning and servicing must be
considered when locating the unit. Refer to
Table 3, Minimum Clearances to Combustible
Material, for clearance specifications.
Keep all insulating materials away from the
louvered door. Insulating materials may be
combustible.
These furnaces may be installed directly on
combustible wood flooring or supports, if type "B-
1" vent pipe is used (See Figure 3).
recommended for further reduction of fire hazard
that cement board or sheet metal be placed
between the furnace and the combustible floor
and extend 12 inches beyond the front of the
louvered door.
!
WARNING:
Furnaces installed with combustion air
drawn from a heated space which
includes exhaust fans, fireplaces, or
other devices that may produce a
negative pressure should be considered
confined space installations.
See the "venting requirements" section for
venting guidelines and specifications.
It is
5
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