Beckett 24 VDC manual General Information, Nozzle Assembly Maintenance

Section: General Information & Nozzle Assembly Maintenance

Adequate Voltage Required

A low or erratic power supply could result in impaired burner operation, severe delayed ignition or an explosion inside the heat exchanger resulting in a burn and/or asphyxiation hazard.

yThe Model SDC requires a continuous supply of 21.8 to 28 volts DC measured at the burner during operation with a minimum supply & circuit capacity of 15A. See page 3 for maximum capacity and voltage specifications.

yAn automotive or small engine charging system that is capable of supplying the required continuous voltage/ amperage is recommended with certain road equipment, such as asphalt hot patchers and similar applications.

yThis is especially true while maintaining nominal load temperatures during idle periods.

yOnce the burner is set-up at a specific voltage, a voltage regulator shall be used to maintain that voltage within +/- 1 Vdc during burner operation.

General Information

Refer to the Troubleshooting section of this manual when experiencing a possible fault condition.

A. Equipment Located in Confined Space

The confined space should have two 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 then one square inch per 1,000 BTU’s per hour of the total input rating of all equipment within the enclosure. The openings shall have free access to the building interior, which should have adequate infiltration from the outside.

B. 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, for example), either pipe combustion directly to the burner or provide a sealed enclosure for the burner and provide it with its own combustion air supply.

Adequate Combustion

and Ventilation Air Supply

Required

Failure to provide adequate air supply could seriously affect the burner performance and result in damage to the equipment, asphyxiation, explosion or fire hazards.

yThe burner cannot properly burn the fuel if it is not supplied with a reliable combustion air source.

C. Clearances to Burner and Equipment

Provide space around burner and equipment for easy service and maintenance. Check minimum clearances against those shown by the equipment manufacturer and by applicable codes.

D. Exhausting Hazardous Fumes

See warning on this page. Also be conscious of any fumes produced by the materials that are being heated. Always ensure adequate ventilation to exhaust all fumes.

yFollow the guidelines in the latest editions of the NFPA 31 and CSA-B139 regarding providing adequate air for combustion and ventilation.

Table 1. Combustion Head Firing Rates

Firing Rate GPH	Head
(min - max)
1.75 - 3.25	F22/F220
2.50 - 5.50	F310

Nozzle Assembly

Maintenance

A. Replace the Burner Nozzle.

1.If applicable, remove the plastic plug protecting the nozzle adapter threads.

2.Place a 3/4” open-end wrench on the nozzle adapter. Insert the nozzle into the adapter and finger tighten. Finish tightening with a 5/8” open-end wrench.

Figure 1. Typical Burner Nameplate

General Model Information

Serial Number

Including Date Code

Rating Information

Primary Group

and Fuel Oil

R.W. Beckett Manufacturer’s Settings

R.W. Beckett Specification Number and Revision

Can Be Customized by

Individual Specification

State & Local Approvals

RWB

Model " AFG " Series Oil Burner

000405-62736

ELYRIA

OHIO U.S.A.

MFR'S SETTINGS

BJB3001 R00 000405-62736

SK10090

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