2 way Injection, 3 way mixing - Operates off constant power or relay end switch - Ball valve design - Manual operation button - Solid state microprocessor design - Compact design - Easy one handed actuator removal - 125 PSI shutoff pressure - Plug in low voltage connections - Multi-status LED indicator light - Fail safe mode - Sensors included - Selectable maximum supply temperature (110F, 130F, 150F, or off) - Selectable minimum supply temperature (85F when maximum supply temperature is set to 150F or off ) Adjustable minimum boiler return temperature (120F, 135F, or off ) - Warm weather shutdown (70F or off) - Adjustable heating curve (0.2-2.2 reset ratio) - Use the Taco Outdoor Reset iSeries Mixing Valves instead of a conventional injection system. With a full featured outdoor reset control built right into the actuator there is no need for an externally mounted reset control or expensive control valve. The iSeries valves can also be set up to do zone by zone outdoor reset, providing optimal comfort control for every zone. The direct drive actuator modulates a 3 way valve that injects different rates of hot water, supplying virtually any water temperature to the heating system. Working off an adjustable reset ratio, the valve's maximum and minimum system supply temperatures can be adjusted to support all types of jobs, including staple up radiant floors that require a higher starting temperature. The iSeries valves include an adjustable boiler protection function which prevents low water temperatures from returning to the boiler. With a multi-status LED indicator light, plug-in wiring connections and an easy to remove actuator, the installation could not be easier.