With the Taco Variable Speed Pump Mixing Control you can regulate the supply water
temperature to a heating system by simultaneously controlling a boiler
and the speed of an injection pump. Based on the outdoor air
temperature, the PC705 continuously adjusts the boiler differential to
optimize the firing cycles of the boiler, prevent large water
temperature swings and increase the efficiency of your system. As the
heating load changes, the Taco Mixing Control automatically adjusts the
injector circulator, increasing its speed as load increases and slowing
it with a decreasing load.
The Taco Mixing Control features full diagnostics, including a lighted
bar graph that simulates the speed of the variable speed injection
pump, warm weather shut down, a maximum supply water temperature
setting, and a sensor that can be connected to the boiler to prevent
corrosion in the unit due to flue gas condensation.
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