Allanson 421-BT332 Transformer Els PW 17895 utilizing clockwise (CW) rotation to

utilizing clockwise (CW) rotation to maintain the necessary vertical discharge profile required by Nordyne furnace and AC systems

What is the purpose of the 12A39 vent limiter in this model

Simplified Install: The dual 1/4" barb design and standard spade terminals allow for a "plug-and-play" swap during service calls

providing immediate tactile response and detent positioning

Professional Finish: Provides a clean

Allanson 421-BT332 Transformer Els PW 17895 utilizing clockwise (CW) rotation toThe Allanson 421 BT332 is a heavy duty universal ignition transformer engineered for high performance oil burner applications. Operating on a 120Vac supply voltage, this unit delivers a consistent 10,000Vac secondary voltage with a 23mA current rating, ensuring reliable arc stabilization even in demanding environments. Designed with a mid point ground configuration, it minimizes electromagnetic interference and enhances circuit safety. The integration