I'm replacing an 841942 part

As the primary communication hub

What is the primary function of the S1-024-36279-000 in a York unit

and mounting configuration match

Lennox 23X17 Control Board 326058-756 I'm replacing an 841942 partThe Lennox 23X17 Control Board, also identified as the Lennox 620244 02, is an essential demand defrost control designed for high performance heat pump systems. Built to replace previous iterations such as the LEN620244 02, this board integrates multiple critical functions into a single 24V module, including demand defrost logic, a defrost relay, and an anti short cycle timed off control. It features a sophisticated pressure switch system lockout