All installations and services must be performed by qualified service personnel.
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
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.
?WARNING: This furnace is not to be used as a construction heater.
5. Listed below are definitions of "COMBUSTIBLE MATERIAL" and
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.
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
TYPE OF UNIT | MODEL | FROM SIDES |
| TOP & | FROM THE |
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FRONT | SIDES OF | REAR | ||||||
NO.1 | OF FURNACE | FLUE/VENT | ||||||
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| PLENUM |
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| OL2 | 1” |
| 2” | 1” | 4” | 1” | |
LOWBOYS | OL5,11,16 | 1” |
| 24” | 1” | 6” | 1” | |
OL20 | 1” |
| 24” | 1” | 18” | 1” | ||
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| OL33,37,39 | 1” |
| 24” | 1” | 18” | 1” | |
| OH3,11 | 1” |
| 24” | 1” | 9” | 1” | |
HIGHBOYS | OH5 | 1” |
| 24” | 1” | 6” | 1” | |
OH16 | 1” |
| 24” | 1” | 9” | 1” | ||
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| OH2 | 1” |
| Note3 | 2” | 9” | 1” | |
COUNTERFLOWS | OC2 | 1” |
| 4” | 1” | 6” | 1” | |
OC5 | 1” |
| 4” | 1” | 9” | 1” | ||
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| MODEL | FRONT | TOP | REAR | BOTTOM | FROM THE | ANY SIDE | |
TYPE OF UNIT | NO.1 |
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| FLUE/VENT | OF | |
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| PLENUM | |
HORIZONTALS2 | OT5 | 24” | 1” | 1” | 1” | 4” | 1” | |
OT11,16 | 24” | 1” | 1” | 1” | 9” | 1” | ||
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Notes: | 1The above | are abbreviated model numbers. |
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| 2Horizontal units are not approved for attic installation. |
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| 3OH2 front clearance for 6” for Closet, 18” for Alcove. |
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