•
A fan draws the outdoor air through an air heat exchanger (1),
which heats up the cold refrigerant, which evaporates into a gas.
•
The refrigerant that is now supplied with energy in the form of heat
is transferred via the 4 way valve (2) to the compressor (3), where its
temperature and pressure are increased.
•
The extremely hot refrigerant continues to the flat heat exchanger
(4). Here, the refrigerant is cooled and releases its heat energy to the
heating system (5). The refrigerant’s temperature drops and con-
denses to a liquid state.
•
The heating system transports the heating energy out to the water
heater or the heating system of the house.
•
The refrigerant then passes through the drying filter (6) to the elec-
tronic expansion valve (7) where the pressure and temperature
drop and the process starts again.
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