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For technicians performing diagnostics
Whether used for low-ambient control or limit protection
providing a reliable solution for technicians addressing furnace ignition failure or nuisance system lockouts
What material is the A18633 float made from
Lennox 49W66 Control Board Refrigerant For technicians performing diagnosticsThe 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
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