Installer’s Information Manual
Page 3
Rule 8.
Completely seal supply and retu rn air ducts to
furnace casing. Duct system must run to an area outside
furnace room or closet. Seal duct work wherever it runs
through walls, ceilings or floors of fu rnace room or closet.
SECTION 2. MEETING CODES
This furnace complies with American National Standard
and National Standard of Canada for Gas Fired Central
Furnaces, ANSI Z21.47
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CAN/CGA-2.3. It is certified for
operation with either natural gas or propane (LP) gas for
indoor installation in a building constructed on site. It meets
the requirement for a 100% shut-off gas control system.
Before installing this fu rnace, make sure you know all
applicable codes. Be sure to consult local authorities
having jurisdiction over furnaces for information on
electrical wiring, gas piping and venting. The installation of
this furnace must conform with local building codes or in the
absence of local codes, with ANSI Z223.1, National Fuel
Gas Code or CAN/CGA B149, Canadian Installation Codes.
Electrical wiring must conform with local building codes or
in the absence of local codes, with the current National
Electrical Code, ANSI/NFPA 70 or current Canadian
Electrical Code, CSA C22.1.
SECTION 3. DETERMINING BEST
FURNACE LOCATION
You may install this upflow furnace in an alcove, attic,
basement, closet, garage or utility room. Do not install
furnace in an area subject to freezing temperatures.
This furnace operates best when return-air temperature is
between 55°F and 80°F. Do not install furnace in a location
subject to continuous higher or lower temperatures.
Continuous operation outside of this range may shorten
furnace life.
WARNING
: Do not install fu rnace in any other
position other than upflow. Doing so could cause heat
exchanger blockage and damage to heat exchanger.
Select a location that meets all requirements described in
this manual for the following:
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Safety
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Minimum Clearances
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Combustion and Ventilation Air
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Venting
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Duct System
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Gas Piping
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Electrical Wiring
Locate furnace as near to the center of the air distribution
system as possible.
Provide ample space for servicing and cleaning. Location
must allow 30 inches minimum front clearance for service.
WARNING
: Some insulating materials are
combustible. When a furnace is installed in an attic or other
insulated space, keep all insulating materials at least 12
inches away from fu rnace and combustion air inlet. Failure
to do so could cause a fire.
You may install furnace on non-combustible flooring or on
wood flooring.
WARNING
: Do not install fu rnace on carpeting,
tile or other combustible material except wood flooring.
Doing so could cause a fire.
Install furnace so all electrical components are protected
from water.
Level furnace from front to back and from left to right within
1/4 inch. Furnace must be installed level for proper
condensate drainage. Fu rnace will not operate if
condensate does not drain.
When furnace is located within the heated space, exhaust
fans can adversely affect its operation. Exhaust fans in
kitchen, bathrooms, clothes dryers or anywhere within
heated space, increase combustion air requirements of
non-direct vented furnaces. This is because exhaust fans
reduce the amount of combustion air available to th e
furnace. A fireplace also reduces amount of combustion
air.
Sufficient air must be provided to ensure there will not be a
negative pressure in fu rnace room or space. In addition,
there must be a positive seal between fu rnace and return
air duct to avoid pulling air from burner area.
When a cooling unit is installed with this fu rnace, the
furnace must be installed parallel with or on the upstream
side of the cooling unit to avoid condensation in fu rnace
heat exchanger. With a parallel flow arrangement, the
dampers or other means used to control flow of air must be
adequate to prevent chilled air from entering the fu rnace
and, if manually operated, must be provided with a means
to prevent operation of either unit unless damper is in the
full heat or cool position.
When furnace is in a residential garage, it must be installed
so that pilot and main burners are located no less than 18
inches above the floor. Also, furnace should be protected
from physical damage by vehicles.
When furnace is in a public garage, airplane hanger, or
other building having hazardous atmosphere, install unit in
accordance with recommended good practice requirements
of the National Fire Protection Association, Inc. Consult
local code authorities for additional location requirements.
See Figure 1 for furnace dimensions and clearances.
