Trane SWT2978 Pressure Switch 318820-201 Precise Regulation: Highly sensitive response

Precise Regulation: Highly sensitive response to reduced pressure changes ensures stable volume delivery without significant pressure drops

Check for a clogged HVAC air filter

or a visible loss of tension in the actuator assembly

Advanced ECM Technology: Utilizes an integrated microprocessor for precise speed regulation and high-torque performance

and compatible gases

Trane SWT2978 Pressure Switch 318820-201 Precise Regulation: Highly sensitive responseThe 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