Taco PC705-2 Variable Speed Pump Control

The Taco PC705-2 is a variable speed pump control designed to optimize the efficiency and performance of hydronic heating systems. It operates by concurrently controlling an injection pump and a boiler. To minimize excessive variations in water temperature and maximize efficiency, the PC705-2 continually modifies the boiler's firing cycles based on the outside air temperature. Furthermore, it adapts the injection pump's speed automatically to the heating requirement. The pump speed increases in response to an increase in the heating load, guaranteeing enough water circulation and a constant supply temperature. Conversely, when demand decreases, the pump reduces its speed, resulting in lower energy consumption.In hydronic heating systems, this novel control mechanism is usually utilized in conjunction with mixing valves and boilers. by continuing to supply water at a constant, effective temperature.