Admixing circuit

The mixing circuit is characterised by the mixing of the heating medium from the heat generator with the return water from the consumer circuit in a control valve. The pump and control valves can be installed in the flow or return.

Figure 1. Admixing circuit with a 3-way mixer in the flow pipe


Features of the mixing circuit:
  • There is a pump in the consumer circuit.
  • The producer circuit is variable in volume.
  • The return temperature is not raised.
Typical applications of the mixing circuit are
  • Flat transfer station
  • TWE using the flow-through principle
  • Low-temperature boiler
  • Multi-boiler system
  • Heat pump