Lennox International Inc Comprehensive Guide to the EL280UH Gas Furnace by Lennox

EL280UH Gas Furnace

The EL280UH unit is shipped ready for installation in the

upflow or horizontal right position (for horizontal left posi- tion the combustion air pressure switch must be moved). The furnace is shipped with the bottom panel in place. The bottom panel must be removed if the unit is to be installed

in a horizontal application. The panel may also be re- moved in upflow applications.

Shipping and Packing List

Package 1 of 1 contains

1 − Assembled EL280UH unit

1 − Bag assembly containing the following:

2 − Screws

1− Snap bushing

1− Snap plug

1− Wire tie

1− Vent warning label

1− Owner’s manual and warranty card

The following items may be ordered separately:

1 − Thermostat

1 − Suspension kit (for horizontal installations)

1 − Propane/LP changeover kit

1 − Return air base

1 − High altitude kit

1 − Side filter kit

Check equipment for shipping damage. If you find any damage, immediately contact the last carrier.

Safety Information

DANGER

Danger of explosion.

There are circumstances in which odorant used with LP/propane gas can lose its scent. In case of a leak, LP/propane gas will settle close to the floor and may be difficult to smell. An LP/propane leak detector should be installed in all LP applications.

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause property damage, person- al injury or loss of life. Installation and service must be performed by a licensed professional installer (or equivalent), service agency or the gas supplier.

CAUTION

As with any mechanical equipment, personal injury can result from contact with sharp sheet metal edges. Be careful when you handle this equipment.

Certifications

EL280UH units are CSA International certified to ANSI Z21.47.

In the USA, installation of gas furnaces must conform with local building codes. In the absence of local codes, units must be installed according to the current National Fuel Gas Code (ANSI-Z223.1). The National Fuel Gas Code is

available from the following address: American National Standards Institute, Inc. 11 West 42nd Street

New York, NY 10036

Clearances

Adequate clearance must be made around the air open- ings into the vestibule area. In order to ensure proper unit operation, combustion and ventilation air supply must be provided according to the current National Fuel Gas Code.

Vent installations must be consistent with the venting tables (in this instruction) and applicable provisions of local building codes.

This furnace is CSA International certified for installation clearances to combustible material as listed on the unit nameplate and in the tables in figures 8 and 12. Accessibility and service clearances must take precedence over fire protection clearances.

NOTE − For installation on combustible floors, the furnace

shall not be installed directly on carpeting, tile, or other

combustible material other than wood flooring.

Installed Locations

For installation in a residential garage, the furnace must be installed so that the burner(s) and the ignition source

are located no less than 18 inches (457 mm) above the

floor. The furnace must be located or protected to avoid physical damage by vehicles. When a furnace is installed

in a public garage, hangar, or other building that has a haz-

ardous atmosphere, the furnace must be installed accord- ing to recommended good practice requirements and cur-

rent National Fuel Gas Code.

Temperature Rise

NOTE − Furnace must be adjusted to obtain a temperature rise within the range specified on the unit nameplate. Failure to do so may cause erratic limit operation and may result in premature heat exchanger failure.

This EL280UH furnace must be installed so that its electri- cal components are protected from water.

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