while Switch S1 is fixed at 11°

As a Lennox OEM replacement filter

This OEM replacement part ensures the stoichiometric balance required for clean combustion

as well as obsolete part numbers 611017 and 61-101816-02

Bard HVAC 5651-105BX Expansion Valve 30067439-890 while Switch S1 is fixedAs a seasoned technician, you know that maintaining precise superheat and refrigerant flow is non negotiable for system longevity. The Bard HVAC 5651 105BX Expansion Valve is a genuine OEM replacement part engineered specifically for Bard wall mount units and air handlers. Featuring a 3 8" x 3 8" connection, this thermostatic expansion valve (TXV) is the direct engineering update for the legacy 5651 105 model. It provides critical pressure operated