Gorenje Aerogor ECO COMPACT INVERTER 10A, Installation Manual

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1.8 WORKING PRINCIPLE
A heat pump operates similarly as a refrigerator. In a refrigerator, liquids evaporate due to
received thermal energy from the surrounding air and this energy is emitted at a desired spot
during condensation (Carnot’s cycle). A heat pump works in the opposite direction: it accepts
thermal energy from the surrounding air and emits it in heated premises, using the natural
heat collector of the environment. Ground and surface water, earth’s warmth, solar energy
and ambient air can be used as energy sources. The system is composed of four units:
evaporator, compressor, condenser and damper. Heat energy is transferred via the coolant.
In the evaporator, the coolant receives heat energy and evaporates. In the compressor, the
vapour is compressed, which makes it heat up intensively. This hot vapour transmits thermal
energy from the condenser to the heating water and liquefies. In the damper, the coolant
expands (pressure reduces to the starting pressure, from there it proceeds to the evaporator
and the cycle repeats).
10
15
20
25
30
35
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45
50
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60
65
-30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50
Ma
x
im
um
ou
tl
et
w
ate
r
tem
pe
rture [
°C]
Outside ambient temperature [
°C]
Operating range - heating mode:
Aerogor POWER EVI Inverter 15 A
Aerogor POWER EVI Inverter 18 A
Heat from
ambient
Produced
heat for
heating
Electric
energy
ECO
EVI
Compressor
Expansion
valve
Evaporator
Evaporator
Condenser
Condenser