Industry-Standard 189-227 Microfarad Range: Provides consistent starting torque for medium to large tonnage compressors

Professionals rely on this furnace safety limit switch for its rugged construction and reliable calibration within the combustion chamber environment

this 50 amp contactor features silver cadmium oxide contacts to ensure superior conductivity and long-term durability in high-cycle environments

To optimize heat transfer

Key Benefits OEM Cross-Compatibility: Directly replaces thousands of original equipment relays

Lennox 49W66 Control Board R-410A Industry-Standard 189-227 Microfarad Range: ProvidesThe Lennox 49W66 Ignition Control Board is the heavy duty OEM replacement for legacy 790 311 and 102186 01 modules. Designed for direct spark ignition (DSI) systems, this 24VAC control board is a critical integrated component for Lennox GCS16 rooftop units and commercial series. It features a 30 second pre purge cycle and an 8 second ignition trial, providing precise timing to ensure safe combustion. As a veteran grade HVAC replacement part, it