The Taco 007-VSF5-2IFC is a variable speed outdoor reset circulator. Its all-in-one design combines a microprocessor based controller with the Taco 00 cartridge circulators. The setpoint version of the variable speed circulators is very versatile and can be installed in a variety of manners: to deliver a constant temperature, maintain a specific temperature drop between two sensor locations, and can be used as a bypass/shunt pump or integrated into a fan coil package to adjust the pump speed depending on the temperature of the supply air. The 007-VSF5-2IFC can be configured as either direct acting (speed increases on a temperature decrease) or reverse acting (speed increases on a temperature increases). This unit can also be installed in a radiant injection mixing system which requires a constant supply of water temperature.