RSV-TVAD-SS VAV diffuser is a 24in / 600mm square ceiling diffusers with built in temperature controls and blade style VAV damper. This self-modulating diffuser provides thermal comfort through integrated thermal sensors that continuously monitor room temperature to modulate the integrated damper. Damper modulation is done mechanically with a thermally powered wax actuator, eliminating the need for any electrical or controls wiring and making installation quick and easy.