All installations and services must be performed by qualified service personnel.
1
II. GENERAL INSTRUCTIONS - READ BEFORE START OF INSTALLATION
1. The heating output capacity of the furnace proposed for installation should be based on a heat
loss calculation made according to the manuals provided by the Air Conditioning Contractors of
America (ACCA) or the American Society of Heating, Refrigeration and Air Conditioning
Engineers, Inc. (ASHRAE).
2. All local codes and/or regulations take precedence over the instructions in this manual and
should be followed accordingly. In the absence of local codes, installation must conform with
these instructions and regulations of the National Fire Protection Association, and to the
provisions of the National Electrical Code (ANSI/NFPA 70-1999 or latest edition).
3. The installed furnace must be level and positioned in a central location with respect to outlet
registers. It should be located near the chimney to minimize any horizontal run of flue pipe, which
may be required.
4. A furnace installed in a residential garage must be installed so the burner and ignition source are
located higher than 18 inches above the floor, unless the required combustion air is taken from the
exterior of the garage. Also, the furnace must be located or protected to avoid physical damage
by vehicles.
c
WARNING:
This furnace is not to be used for temporary heating of buildings or structures
under construction.
5. Listed below are definitions of "COMBUSTIBLE MATERIAL" and "NON-COMBUSTIBLE
MATERIAL."
COMBUSTIBLE MATERIAL:
Material made of or surfaced with wood, compressed paper, plant fibers, plastics, or other
material that will ignite and burn, whether flame resistant or not.
NON-COMBUSTIBLE MATERIAL:
Material that is not capable of being ignited and burned. Such materials consist entirely of, or a
combination of, steel, iron, brick, tile, concrete, slate, or glass.
MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS
MODEL NO.
FROM
SIDES OF
FURNAC
E
FRONT
TOP &
SIDES OF
PLENUM
FROM
THE
FLUE/VE
NT
REAR
OL20FA151T60
OL20RA151T60
1”
24”
1”
18”
1”
The minimum clearances listed in the preceding table are for fire protection. Clearance for
servicing the front of the furnace and the rear of the lowboy models should be at least 24 inches.
Summary of Contents for OL20FA151T60 Series
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