Allanson Transformers 2721-668 Transformer Els PW 17895 piping using the included spring

piping using the included spring clip

it handles high-cycling demands while providing stable 24V control power distribution to the rest of the system

the drive time to open is approximately 25 seconds

the Lennox 46K18 ensures optimal fuel-to-air mixing for clean ignition

and building management systems

Allanson Transformers 2721-668 Transformer Els PW 17895 piping using the included springThe Allanson 2721 668 Ignition Transformer is a heavy duty, iron core electromagnetic unit designed for reliable oil burner ignition. This transformer operates on a 120Vac supply voltage and delivers a high voltage 10,000Vac secondary output at 23mA. Engineered with a midpoint ground configuration, it ensures stable arc performance and consistent combustion in residential and commercial heating systems. As the direct replacement for 2721 668SF models,