Description
The Trane SEN01842 N/C Liquid Level Sensor 30W is a float-type liquid level switch used to detect the presence or absence of fluid inside compatible Trane equipment. It operates as a normally closed SPST contact that changes state when the liquid level shifts, sending a simple open or close signal to the control circuit. Rated for 50 PSI pressure and up to 220F it handles temperature and pressure variations within sealed fluid sections. In HVAC systems, it is typically placed in condensate or liquid management zones, where it communicates with control boards to monitor fluid level conditions inside collection or separation chambers during operation cycles.
