Flow and return sensors: how they are used in heat pump control

Flow and return sensors provide the controller with an overview of the water temperature before and after the heating system.

Flow

Used to control the temperature the heat pump sends to the terminals.

Return

Indicates how much the water has cooled or heated after energy dissipation.

ΔΤ

The flow-return difference is a key element for flow and load control.

Faulty sensor

Can lead to incorrect power regulation or high/low temperature protection triggers.