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• If the furnace is installed horizontally, the furnace access
doors must be vertical so that the burners fire horizontally
into the heat exchanger. Do not install the unit with the
access doors on the "up/top" or "down/bottom" side of the
furnace.
• Do not connect this furnace to a chimney flue that serves a
separate appliance designed to burn solid fuel.
Vent Pipe Clearance to Combustibles-
6" using Single Wall Connector or 1"
using B-1 vent.
Top - 1"
• Adequate combustion/ventilation air must be supplied to
the closet.
• Furnace must be completely sealed to floor or base.
Combustion/ ventilation air supply pipes must terminate
12" from top of closet and 12" from floor of closet. DO NOT
remove solid base plate for side return.
• Return air ducts must be completely sealed to the furnace
and terminate outside the enclosure surfaces.
C
A
LEARANCES AND
CCESSIBILITY
Unobstructed front clearance of 24" for servicing is
recommended.
VE N T
SID ES
B1-V EN T
SIN G LE
1"
6"
Top clearance for horizontal configuration - 1"
H
I
ORIZONTAL
NSTALLATION
Line contact to framing is permitted when installed in the horizontal
configuration. Line contact is defined as the portion of the cabinet
that is formed by the intersection of the top and side.
ACCESSIBILITY CLEARANCE,WHERE GREATER, SHOULD TAKE
PRECEDENCE OVER MINIMUM FIRE PROTECTION
CLEARANCE. A gas-fired furnace for installation in a residential
garage must be installed so that the ignition source and burners
are located not less than eighteen inches (18") above the floor
and is protected or located to prevent physical damage by vehicles.
A gas furnace must not be installed directly on carpeting, tile, or
other combustible materials other than wood flooring.
F
S
URNACE
USPENSION
If suspending the furnace from rafters or joist, use 3/8" threaded
rod and 2"x2"x3/8" angle iron as shown below. The length of rod
will depend on the application and the clearances necessary.
Back - 0"
Side
Clearance - 1"
Front Clearance - 3"
FR O N T
B AC K
1"
3"
0"
3/8" DIAMETER
THREADED ROD
(6 PLACES)
HOLD DOWN
NUTS
SUPPORT
NUTS
2" X 2" X 3/8"
A
I
NGLE
RON
(3 PLACES)
E
F
XISTING
URNACE
NOTE: When an existing furnace is removed from a venting system
serving other appliances, the venting system may be too large to
properly vent the remaining attached appliances.
The following vent testing procedure is reproduced from the
American National Standard/National Standard of Canada for
Gas-Fired Central Furnaces ANSI Z21.47-Latest Edition, CSA-
2.3-Latest Edition Section 1.23.1. The following steps shall be
followed with each appliance connected to the venting system
placed in operation, while any other appliances connected to the
venting system are not in operation:
a. Seal any unused openings in the venting system;
b. Inspect the venting system for proper size and horizontal
pitch, as required by the National Fuel Gas Code, ANSI
Z223.1 or the CAN/CSA B149 Installation Codes and these
instructions. Determine that there is no blockage or
restriction, leakage, corrosion and other deficiencies which
could cause an unsafe condition;
c. In so far as practical, close all building doors and windows
and all doors between the space in which the appliance(s)
connected to the venting system are located and other
TO P
spaces of the building. Turn on clothes dryers and any
(P LEN U M )
appliance not connected to the venting system. Turn on
1"
any exhaust fans, such as range hoods and bathroom
exhausts, so they shall operate at maximum speed. Do
not operate a summer exhaust fan. Close fireplace
dampers;
d. Follow the lighting instructions. Place the appliance being
inspected in operation. Adjust thermostat so appliance
shall operate continuously;
e. Test for draft hood equipped appliance spillage at the draft
hood relief opening after 5 minutes of main burner
operation. Use the flame of a match or candle;
f. After it has been determined that each appliance connected
to the venting system properly vents when tested as
outlined above, return doors, windows, exhaust fans,
fireplace dampers and any other gas burning appliance to
their previous conditions of use;
g. If improper venting is observed during any of the above
tests, the common venting system must be corrected.
Corrections must be in accordance with the latest edition of the
National Fuel Gas Code NFPA 54/ANSI Z223.1 and/or CAN/CSA
B149 Installation Codes.
7
PROVIDE 8" MINMUM CLEARANCE BETWEEN
CENTER ROD AND FURNACE CABINET
TO ALLOW FOR CIRCULATOR BLOWER REMOVAL
ASSURE FURNACE IS LEVEL FROM
FORWARD TILT WITH THE FRONT
BELOW THE BACK OF THE FURNACE
POSITION AS CLOSE AS POSSIBLE
TO BLOWER DECK TO ALLOW FOR
CIRCULATOR BLOWER REMVOAL
Suspended Furnace
R
EMOVAL
END TO END AND HAS A SLIGHT
OF THE FURNACE 0"-3/4"
TILT OUTWARD TO ALLOW FOR
DOOR AND CIRCULATOR BLOWER
REMOVAL
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