Description
The Functional Devices TR20VA001 Transformer is a low-voltage control component used to convert 120 VAC primary power to a 20 VAC secondary 24V voltage output for control circuits. It is installed in air handling units, heat pumps, and other HVAC systems equipment where stable low-voltage power is required for thermostats, relays, and control boards. It works as an interface between the line-voltage supply and control components, enabling secure operation of system controls. It is integrated within control panels and equipment enclosures to support consistent electrical supply for switching and regulation operations in residential and commercial connection.
