Lennox 23X17 Control Board 30067439-890 the 1F80-361 is compatible with

the 1F80-361 is compatible with gas

this brass boiler relief valve provides a 510

As a key component of the PopTop series

0570 orifice

Lennox 23X17 Control Board 30067439-890 the 1F80-361 is compatible withThe 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