Trane SWT2291 Pressure Switch 322056-301 The switch operates on a

The switch operates on a "close on rise" logic

and fans where precision current sensing and reliability are non-negotiable

airtight bond at the overlap

matching the 1 3/8" sweat specifications

Trane SWT2291 Pressure Switch 322056-301 The switch operates on aThe Trane SWT2291 is a commercial grade SPNO negative pressure switch engineered to maintain critical air pressure differentials in demanding HVAC and industrial environments. This Trane OEM part features a single pole, normally open contact configuration, providing precise activation when vacuum levels drop below set parameters. With an operational range of 0. 5 to 2. 5 inches water column (WC) and field adjustable set points, it offers the