Trane RLY3790 Fan Relay 24V

The Trane RLY3790 is a Fan Relay 24V that is an electronic device meant for use in Trane HVAC systems. Seems to be binary – it performs an on/off function in operating the fan motor depending on signals provided by the thermostat. It controls the flow of air throughout the system in a way that will either warm or cool it. This relay is a high-current relay with a 24V coil voltage and is designed for use in severe conditions. It has a single pole single throw contact configuration with Normally Closed terminals to conveniently connect with your HVAC system. These quick-connect terminals make installation and handling of the convenient part easy.