Diverter circuit

The diverter circuit is the simplest hydraulic circuit in terms of the control components required.

The only control element is a 3-way control valve in the return of the heat exchanger.

The output is controlled by adjusting the supplied mass flow, whereby the temperature at the inlet of the heat exchanger corresponds to the flow temperature. Due to the controllability of the mass flow in the primary circuit from 0 to 100 %, the return temperature rises to the flow temperature when the bypass is open. The diverter circuit is therefore unsuitable if the heat is generated by district heating, a condensing boiler or a heat pump.

Diverter circuit control diagram