Allanson Transformers 2721-654 Transformer

The Allanson 2721-654 Ignition Transformer is a heavy-duty power supply engineered specifically for Clean Burn waste oil burners. Designed to handle the rigorous demands of recycled oil combustion, this transformer converts a 120Vac supply voltage into a consistent 10,000Vac secondary voltage output. With a 23mA secondary current and mid-point grounding, it ensures a stable arc for reliable ignition, even in cold-start conditions common with high-viscosity fuels. This unit serves as a direct drop-in replacement for worn oil burner ignitors, maintaining the precise electrical tolerances required by Clean Burn systems to prevent electrode fouling. The Allanson 2721-654 is built with high-grade internal windings to withstand the high ambient temperatures of furnace cabinets. Proper installation of this replacement ignition transformer is essential for maintaining burner efficiency and reducing unburned fuel accumulation in the combustion chamber.

• Stable Arc Generation: Delivers a consistent 10kV output to penetrate heavy fuel molecules for reliable ignition.
• Mid-Point Grounding: Specifically configured for compatibility with Clean Burn internal circuitry and safety sensors.
• Industrial Build Quality: Designed to replace standard Allanson transformers in waste oil applications where standard duty cycles are insufficient.
• Direct Fit: Mounting holes and terminal positions facilitate fast swapping during service calls.

Common Questions

Will this transformer work with standard #2 fuel oil burners?
While the electrical specs are similar, the Allanson 2721-654 is specifically engineered for Clean Burn waste oil hardware. Verify mounting plate dimensions and terminal clearance before attempting use on other burner brands.

What causes frequent failure in waste oil burner ignitors?
Excessive heat or improper electrode gaps can put back-pressure on the transformer. Ensure your electrodes are set to OEM specifications to maximize the lifespan of the 2721-654.

How do I test the secondary voltage on this unit?
Testing should be performed with a calibrated high-voltage probe; however, most technicians verify the 23mA draw and the ability to pull a consistent 3/4-inch arc to ground.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

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