Temperature sensors are among the most essential control components of a heat pump. The controller uses their readings to decide when to start, when to modulate power, and when to trigger protections.
Key measurement points
Typically, there are sensors for outdoor air, supply, return, heat exchanger, and DHW tank.
Why correct readings are important
Incorrect readings can cause improper weather compensation, frequent start-stop cycles, or unwanted alarms.
Diagnosis
The reading is compared with an independent measurement and, where required, with the sensor's technical specifications.
