this unit is rated for 115V/60Hz systems

This is a momentary on switch (OFF/MOM-ON)

maintaining tight tolerances within the head mechanism of steam and hot water systems

a different A-series model or a bore reducer/adapter would be required

This link is specifically rated for the FD-1300 dynamic damper

York S1-2940-3571 Sequencer this unit is rated forThe York S1 2940 3571 Sequencer is a critical component for managing the staging of electric heating elements and blower motors in residential air handlers and furnaces. As an authentic Source 1 replacement part, this electric heat sequencer ensures proper timing intervals, preventing simultaneous high amperage draws that could lead to circuit breaker trips. The York S1 2940 3571 utilizes a thermal element to trigger internal switches, typically