Lennox 80K25 Pressure Switch Refrigerant and Payne models including the

and Payne models including the 340AAV

Key Benefits for Technicians: Exact OEM Calibration: Precise set points ensure the switch closes only when the correct negative pressure is achieved

this is a fixed-setpoint safety device

What is the difference between the 750 and the 750TO

Lennox 80K25 Pressure Switch Refrigerant and Payne models including theThe Lennox 80K25 Pressure Switch is a critical safety component designed for precise combustion air pressure monitoring in Lennox, Armstrong, and Ducane furnace systems. This genuine OEM replacement part, also identified as 80K2501 or Honeywell IS20407 5896, features a fixed set point of . 24" WC (Water Column). Engineered with a Single Pole Single Throw (SPST) contact configuration, it ensures the inducer motor is moving sufficient air before