4-way valve-controlled radiator circuit.
1The mixing valve regulates the radiator circuit by mixing the temperature from the radiator return pipe and boiler circuit. At the same time is the return water from the radiators mixed with hot water to protect the boiler from to low return temperatures. The valve has high regulating accuracy, for energy-efficient valve operation.
2Thanks to the special interface between the actuator and VRG140 valve will the unit have a unique stability and precision when regulating. Recommended control signal is 3-point (open / close) or proportional (voltage / current).