Trane SWT03334X13790871010SC0522 Thermal Sensor Flow Switch

The Trane SWT03334X13790871010SC0522 Thermal Sensor Flow Switch is a 24 VAC/DC inline device that monitors liquid flow in Trane commercial chiller and hydronic HVAC systems, verifying adequate circulation before enabling equipment operation. Using thermal dispersion sensing technology, this sensor provides reliable flow detection and an electronic switching output to protect chillers, heat exchangers, and pumping systems from damage caused by insufficient water or glycol flow. Factory-programmed with a 15 cm/s flow setpoint (SC0522), it features a 1/2 in. NPT male process connection, an M12 5-pin connector, and IP67 protection for rugged service in commercial environments. Designed for continuous flow monitoring in applications spanning central chiller plants, industrial cooling systems, district cooling facilities, and HVAC water loops, the SWT03334 serves as an OEM replacement flow switch compatible with water and water/glycol solutions (model-dependent); alternate part numbers include X13790871010 and SC0522.