ensuring optimized centrifugal force to maintain consistent static pressure and airflow across your indoor coils

provided the system is configured correctly for the fuel type

including the FX

It is not designed for use with Hytrel or Urethane sleeves

This specialized part is vital for preventing common issues like low superheat or improper refrigerant metering during demanding cooling cycles

Lennox 34M73 Pressure Switch 321702-401 ensuring optimized centrifugal force toThe Lennox 34M73 Pressure Switch is a critical safety component designed for precise furnace draft inducer monitoring in residential and commercial heating systems. This OEM Lennox replacement part is factory calibrated to a . 22"wc set point, ensuring the exhaust vent maintains adequate negative pressure before allowing the ignition sequence to proceed. Featuring a Single Pole Single Throw (SPST) configuration and a standard 1 4" barb connection,