Allanson Transformers 2721-631A Transformer Els PW 17895 or PAH and confirm the

or PAH and confirm the blower wheel diameter matches 4

Service technicians typically specify the SLG0123 when servicing Trane and American Standard units to maintain factory airflow specifications and mechanical balance

Is this compatible with the legacy S1-024-35777-000 switch

It is also compatible with 750mV heating systems

After cutting

Allanson Transformers 2721-631A Transformer Els PW 17895 or PAH and confirm theThe Allanson 2721 631A Ignition Transformer is a heavy duty power source engineered specifically for ABC and Sunray burners. Designed for high performance combustion environments, this unit converts a 120Vac supply voltage into a consistent 10,000Vac secondary voltage at 23mA. The midpoint ground configuration ensures electrical stability and reliable arc initiation across the electrodes, which is critical for preventing delayed ignition. Built with a