Allanson Transformers 2721-619 Transformer

The Allanson 2721-619 Ignition Transformer is a high-performance electrical component engineered specifically for Wayne HI Speed M/MH Burners. This heavy-duty unit converts a 120Vac supply voltage into a consistent 10,000Vac secondary voltage output at 23mA, utilizing a midpoint ground configuration. Designed for industrial and residential heating oil burner ignition systems, the 2721-619 features a robust internal construction that limits radio frequency interference (RFI) and ensures a reliable arc in demanding draft conditions. Its precise bolt-on housing ensures a secure fit for HVAC burner maintenance, maintaining the critical electrode gap timing required for efficient combustion. This transformer is a direct-fit replacement, preventing common Wayne burner ignition failure issues caused by carbon tracking or dielectric breakdown in older secondary windings. For technicians optimizing flame retention burner performance, this component provides the high-voltage stability necessary for consistent cold starts.

Key Benefits

• Optimized Output: Delivering a steady 10,000V secondary output for crisp, reliable ignition across various furnace cycles.
• Wayne Direct Fit: Specifically mounted for Wayne M and MH series burners, ensuring perfect alignment with the electrode assembly.
• RFI Suppression: Engineered to minimize electromagnetic interference with digital thermostats and control boards.
• Midpoint Grounding: Enhances safety and reduces load stress on the transformer’s internal secondary coils.

Common Questions

Will this transformer work with standard Wayne M series burners?
Yes, the Allanson 2721-619 is the standard high-voltage replacement for the M and MH series high-speed burners, though you must verify the mounting plate configuration before installation.

What causes an ignition transformer to fail prematurely?
Most failures in oil burner transformers are due to excessive heat, improper electrode gap settings, or cracked porcelain insulators leading to a secondary short circuit.

Can I use a 23mA transformer where a 20mA was previously installed?
Yes, the higher milliamp rating provides a more robust arc, which is often preferred for high-static oil burners to ensure reliable fuel atomization and ignition.

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.