Lennox 53K80 Fan Timer Kit 30067439-890 Complementary AG or AH series

Complementary AG or AH series actuators must be purchased separately

Optimized Sealing: High-grade FKM elastomers provide superior resistance to aggressive chemicals and elevated temperatures

the Belimo KH-LF Crankarm is the essential link for LF series actuator non-direct mounting applications

0 Cv rating provides precise control for both mixing and diverting applications in terminal unit HVAC zones

the Apollo 27-401-01 prevents premature diaphragm failure and internal scaling

Lennox 53K80 Fan Timer Kit 30067439-890 Complementary AG or AH seriesThe Lennox 53K80 Fan Timer Kit (replaces LB 90157A) is a critical OEM replacement component engineered for precise fan motor orchestration in Lennox Pulse G21 and high efficiency furnace series. This HVAC control board integrates a sophisticated fan timer control circuit that manages the post purge and pre purge cycles of the blower motor to optimize heat exchanger thermal discharge. Designed for high duty cycle applications, the kit includes the