Beckett Complete Guide to Electrode Gap and Oil Burner Adjustments for CF500 and CF800 Models
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‰Mount air tube to burner

yInsert the air tube into the burner housing. Carefully align the the four screw holes.

yAttach the air tube to the burner using the four provided screws.

‰Install nozzle

yInstall the oil nozzle in the nozzle adapter. Use a 3/4” open-end wrench to steady the nozzle adapter and a 5/8” open-end wrench to turn the nozzle. Tighten securely but do not over-tighten.

Figure 5 - Nozzle line assembly in burner

CF500 1-9/16”

CF800 1-3/4”

‰Check electrode settings

Maintain Electrode

Specifications

Failure to properly maintain these specifications could cause ignition malfunction, puff-back of hot gases, heavy smoke, asphyxiation, explo- sion and fire hazards.

yAdjust the electrode gap and position in relation to the nozzle to the specifications shown in Figure 4.

yCheck, and adjust if necessary, the critical dimensions shown in Figure 4. Verify that the oil tube assembly and electrodes are in good condition, with no cracks or dam- age.

Figure 4 - Nozzle and nozzle line assembly

End view

 

Side view

3/16” - 7/32”

 

gap

1/4” in front

 

of nozzle

 

 

 

 

3/16” above

 

 

nozzle center

 

 

 

50001

‰Install nozzle line assembly

yInsert the nozzle line assembly into the burner air tube. Reference Figure 5.

ySlide the secondary adjusting plate (Figure 6, item f) com- pletely to the left on the indicator adjusting plate (item e). Finger tighten acorn nut (item c) to secure the two plates together. Slide both plates completely to the right (Indica- tor Plate will read 0). Tighten fastener (item d).

yInstall the spline nut on the end of the nozzle line, leaving the nut loosely placed so the plates can be moved.

‰Set dimension Z

yLoosen fastener c in Figure 6. Slide the nozzle line and

plate assembly until dimension Z in Figure 5 is:

CF500 - 1-9/16” ±1/16” CF800 - 1-3/4” ±1/16”.

When dimension Z (from end of air tube to flat area of front face of head) is correctly set, tighten acorn nut (item c).

yAttach the oil line from the oil valve to the nozzle line end. Tighten securely.

yBefore proceeding, check dimension Z once again. Loosen acorn nut c if necessary to reposition the nozzle line. Once dimension Z is set, do not loosen the acorn nut (item) c again. Note that for the setting of fastener d, refer to Ini- tial Head Position procedure on Page 11.

Figure 6 - Adjusting plate assy.

Legend (Figures 5 and 6)

 

 

c

Bottom acorn nut

e

Indicator adjusting plate

d

Fastener

f

Secondary adjusting plate

‰Insert burner

yPosition the burner in the front of the appliance and loosely tighten the nuts on the mounting studs. The burner should be pitched downward 2° as shown in Figure 3.

ySecure the burner to the appliance by tightening the nuts on the burner flange mounting studs.

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6104 BCF5 R06

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Contents To the Homeowner or Equipment Owner To the Professional, Qualified Installer or Service AgencyPotential for Fire, Smoke and Asphyxiation Hazards Before you begin To the Owner Agency approvalsPre-installation check- list Follow These Instructions ExactlyProtect Against Stray Light Lockout Protect Against Dust MoistureOil Supply Pressure Control Required Correct Nozzle and Flow Rate Required‰ Verify air tube ‰ Verify firing rate‰ Mount flanges on air tube Mount the burnerProtect the Air Tube From Overheating ‰ Install nozzle ‰ Check electrode settings‰ Install nozzle line assembly ‰ Set dimension ZConnect fuel lines Do Not Install By-pass Plug with 1-Pipe SystemInstall Oil Supply To Specifications Wire the burner R7184 Prepare the burner for start-up‰ Start-up checklist ‰ Z dimension‰ Initial air settings Table ‰ Initial head position Figure‰ Starting the burner and venting air Explosion and Fire HazardHot Gas Puff-back Heavy Smoke Hazard ‰ Set combustion using instruments Sequence of operation typicalMaintenance and Service Annual Professional Service RequiredMonthly maintenance by owner Annual service by qualified service techni- cianReplacement parts Warranty Limited Warranty Information
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CF800, CF500 specifications

The Beckett CF series, encompassing models CF3500A, CF2500A, CF2300A, CF800, and CF375, represents a robust lineup of oil burners designed for residential and commercial heating applications. These models are engineered for efficiency, reliability, and ease of use, making them a preferred choice among HVAC professionals and homeowners alike.

The CF3500A is a high-capacity model that excels in providing consistent heating for larger spaces. With a firing rate of up to 3.5 gallons per hour, it is equipped with advanced nozzle technology that improves fuel atomization, resulting in better combustion efficiency. This model features a compact design, making it easy to install in various settings, and it includes an integrated control module for straightforward operation.

The CF2500A offers impressive performance with a moderate firing rate suitable for mid-sized buildings. It incorporates Beckett's patented Clean Cut design which minimizes smoke and reduces emissions. This model also comes with a diagnostic LED display, allowing for quick identification of system status and potential issues, enhancing maintenance efficiency.

The CF2300A is tailored for smaller applications while still maintaining a strong performance profile. Its compact size does not compromise power, as it utilizes advanced combustion technologies to ensure effective heating. The user-friendly interface allows for effortless adjustments, and its low profile design fits into tight spaces, making it ideal for residential use.

For applications requiring versatility, the CF800 stands out with a multi-fuel capability, allowing it to run on both oil and biodiesel. It boasts an energy-efficient design that contributes to cost savings over time. The CF800's unique air delivery system enhances combustion efficiency, reducing noise levels and improving overall comfort in the living environment.

Finally, the CF375 is designed for high-efficiency performance in professional settings. Its durable construction ensures long-lasting service, and it is equipped with advanced control systems that optimize fuel delivery and combustion. This model is particularly noted for its low emissions, aligning with modern environmental standards while providing reliable heating.

Together, the Beckett CF series exemplifies cutting-edge technology and engineering excellence, catering to diverse heating needs. Each model is a testament to Beckett’s commitment to energy efficiency, performance, and environmental responsibility, making them suitable choices for both residential and commercial heating applications.
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