Taco’s ECM, wet-rotor Viridian line includes the VR3452 high-efficiency, wet-rotor variable-speed circulator for chilled and hot water applications. It offers up to 34’ of shut-off head and a 52 gal. per min. flow. All settings are accomplished with the user-friendly interface. The circulator offers auto mode (default), as well as proportional pressure control, constant pressure control, constant speed and night setback turndown. The LED displays watts, flow and RPM. It’s available in 115 or 230 volts, has standard flanges and an optional communication module. Taco.