Installer’s Guide
GENERAL INSTALLATION INSTRUCTIONS
The manufacturer assumes no responsibility for equip- ment installed in violation of any code or regulation.
It is recommended that Manual J of the Air Condition- ing Contractors Association (ACCA) or A.R.I. 230 be fol- lowed in estimating heating requirements. When esti- mating heating requirements for installation at Alti- tudes above 2000 ft., remember the gas input must be reduced (See GAS INPUT ADJUSTMENT).
Material in this shipment has been inspected at the factory and released to the transportation agency without known damage. Inspect exterior of carton for evidence of rough handling in ship- ment. Unpack carefully after moving equipment to approximate location. If damage to contents is found, report the damage immediately to the de- livering agency.
Codes and local utility requirements governing the installation of gas fired equipment, wiring, plumbing, and flue connections must be adhered to. In the ab- sence of local codes, the installation must conform with latest edition of the National Fuel Gas Code ANSI Z223.1 • National Installation Code, CAN/CGA B149.1. The latest code may be obtained from the American Gas Association Laboratories, 400 N. Capitol St. NW, Washington D.C. 20001.
These furnaces have been classified as Fan Assisted Combustion system CATEGORY I furnaces as required by ANSI Z21.47 “latest edition” and CAN/CGA 2.3. Therefore they do not require any special provisions for venting other than what is indicated in these instruc- tions. (Category I defined on page 14).
These furnaces may be twinned. They shall have common returns with equal pressure drops or ducts with equivalent lengths and sizes. See Field Wiring Diagrams for Twinning on page 17 for proper hookup.
LOCATION AND CLEARANCES
The location of the furnace is normally selected by the architect, the builder, or the installer. However, before the furnace is moved into place, be sure to consider the following requirements:
1.Is the location selected as near the chimney or vent and as centralized for heat distribution as practical?
2.Do all clearances between the furnace and enclo- sure equal or exceed the minimums stated in Clear- ance Table on the Outline Drawings.
3.Is there sufficient space for servicing the furnace and other equipment? A minimum of 24 inches front accessibility to the furnace must be provided. Any access door or panel must permit removal of the largest component.
4.Are there at least 3 inches of clearance between the furnace combustion air openings in the front panel and any closed panel or door provided?
5.Are the ventilation and combustion air openings large enough and will they remain unobstructed? If outside air is used, are the openings set above the highest snow accumulation level? (See the Air for Combustion and Ventilation section.)
6.Allow sufficient height in supply plenum above the furnace to provide for cooling coil installation, if the cooling coil is not installed at the time of this furnace installation.
7.A furnace shall be installed so electrical components are protected from water.
8.If the furnace is installed in a residential garage, it must be installed so that the burners, and the ig- nition source are located not less than 18 inches above the floor and the furnace must be located or protected to avoid physical damage from vehicles.
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