Trane SWT2979 Dual Pressure Switch

The Trane SWT2979 Dual Pressure switch is used to regulate the functioning of HVAC system equipment. This SPDT switch has two pressure sensing ports that are independent of each other, and this switch can be used to measure the high and low pressures in a given system. Through the detection of these pressure fluctuations, the SWT2979 can sound alarms, shut down equipment in an emergency, and regulate the running of compressors, fans, and dampers. This guarantees the better performance of the system and avoids damage to the equipment and also increases the reliability and efficiency of the system.