Heat Pump
Ambient air is drawn in by the fan and passed over the evaporator. The evaporator cools the air, i.e. it extracts the heat it contains. In the evaporator, the heat removed is transferred to the working fluid (refrigerant). With the aid of an electrically driven compressor, the absorbed heat is “pumped” to a higher temperature level through an increase in pressure and given off to the heating water via the condenser (heat exchanger).
In so doing, the electrical energy is used to raise the heat of the environment to a higher temperature level. Due to the fact that the heat energy extracted from the air is transferred to the heating water, this type of appliance is referred to as an air source heat pump.
