Trane SWT2978 Pressure Switch 320819-301 This 20x25x2 air filter utilizes

This 20x25x2 air filter utilizes high-quality fiberglass media to effectively capture airborne particulates such as dust

As a primary safety and efficiency component

making it ideal for high-cycling HVACR motor applications

ensuring safe combustion cycles by verifying proper venting and airflow before ignition

The MS/TP address and baud rate must be configured manually via the internal DIP switches before the device is powered up

Trane SWT2978 Pressure Switch 320819-301 This 20x25x2 air filter utilizesThe Trane SWT2978 is a heavy duty dual pressure switch engineered for precision safety monitoring within residential and commercial HVAC units. This OEM replacement part is built to monitor critical pressure thresholds, providing a vital safeguard for the compressor and combustion blower. Operating on a 24V AC power supply with an 18A current rating and 28VA pilot duty, it ensures reliable electrical signaling to prevent system strain during high or