Allanson 421-BT299 Transformer Els PW 17895 While Reznor uses various limit

While Reznor uses various limit controls

This is a genuine OEM condenser fan blade for Amana and Goodman PTAC outdoor sections

it is equipped with automatic ball checks in both the upper and lower valves to minimize fluid loss and protect personnel in the event of accidental glass breakage

The primary difference is the handwheel material

Allanson 421-BT299 Transformer Els PW 17895 While Reznor uses various limitThe Allanson 421 BT299 is a heavy duty ferromagnetic ignition transformer designed for reliable high voltage performance in demanding oil burner applications. As a veteran grade service replacement transformer, this 120V ignition transformer delivers a consistent 10,000V secondary output at 23mA with a mid point ground configuration, ensuring a stable spark even in older recovery systems. Unlike standard units, the 421 BT299 is a universal oil ignitor