Beckett 120 Vac/60 Hz Chimney or vent Clearances to burner and appliance, Combustion air supply

Instruction Manual – Model AFG Oil Burner

Prepare burner & site

Inspect/prepare installation site	Inspect/prepare installation site (continued)
Chimney or vent	Clearances to burner and appliance

•Inspect the chimney or vent, making sure it is properly sized and in good condition for use.

•For those installations not requiring a chimney, such as through-the-wall vented appliances, follow the instructions given by the appliance and power venter (if used) manufacturers.

•Provide space around burner and appliance for easy service and mainte- nance.

•Check minimum clearances against those shown by the appliance manufac- turer and by applicable building codes.

Direct air supply and sidewall venting

•Some AFG burners are equipped with combustion air boots to allow use of outside air for combustion.

•When sidewall venting appliances, carefully follow appliance and power venter instructions for installation and wiring.

Combustion air supply

See NFPA Standard 31 for complete details.

If the burner is not supplied with a reliable combustion air source, the burner cannot properly burn the fuel. This would result in incomplete com- bustion, causing sooting and possible emission of carbon monoxide. Severe personal injury, death or substantial property damage could occur.

Appliance located in confined space

The confined space should have two (2) permanent openings: one near the top of the enclosure and one near the bottom of the enclosure. Each opening shall have a free area of not less than (1) one square inch per 1,000 BTU’s per hour of the total input rating of all appliances within the enclosure. The openings shall have free access to the building interior, which should have adequate infiltration from the outside.

Exhaust fans and other air-using devices

Size air openings large enough to allow for all air-using devices in addition to the minimum area required for combustion air. If there is any possibility of the equipment room developing negative pressure (because of exhaust fans or clothes dryers, for example), either pipe combustion air directly to the burner or provide a sealed enclosure for the burner and supply it with its own combustion air supply.

Outside air kit applications

Refer to separate instruction sheet supplied with AFG outside air kit for installation. This optional kit allows combustion air to be piped directly to the burner. (Part number 51747.)

You must install the outside air kit strictly following the kit instal- lation instructions. Do not attempt to install outside air piping without using the AFG outside air kit and instructions. Failure to do so could result in burner or heating appliance failure, causing potential severe personal injury, death or sub- stantial property damage.

Combustion chamber — Burner retrofitting

Verify that the appliance combustion chamber provides at least the minimum dimensions given in Table 2.

When retrofitting an appliance that has a stainless steel chamber

—A chamber burnout could result from the use of a high performance burner. Protect the chamber from high temperatures through the use of "wet-pac" or a similar ceramic liner. Some new equipment may contain stainless steel cham- bers that have been designed and tested by the manufacturer for use with flame retention burners — ceramic protection would not be necessary. Refer to appli- ance manufacturer’s instructions. Failure to comply could result in damage to heating equipment.

Table 2 — Minimum combustion chamber dimensions

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