| The Taco Viridian VT2218 pump is a temperature sensing, variable speed wet rotor circulator with an ECM permanent magnet motor. Operating modes include Delta-T differential temperature, 4 fixed speeds, set point heat, set point cool and boiler protection. • Delta-T operation maximizes system efficiency and comfort • High-efficiency ECM motor uses up to 85% less electricity • LCD displays operating mode, temperature or speed setting, watts, supply & return temperatures • Easy to program and install • 110-120V, 50/60 Hz single phase • 1650-4200 RPM. Free shipping, see details. |