Lennox 34M73 Pressure Switch 30067439-890 This HVAC inducer motor operates

This HVAC inducer motor operates on a standard 115-volt

Its electronic sensing eliminates the risk of capillary tube failure

it maintains stable electrical resistance over thousands of cycles

the Trane BRG0740 is the standard 1" bore cartridge bearing used across both brands for residential and light commercial air handlers

Direct Compatibility: Engineered specifically for Galaxy boiler applications

Lennox 34M73 Pressure Switch 30067439-890 This HVAC inducer motor operatesThe 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,