Outdoor air
The outdoor air is sucked into the heat pump.
A
The fan then routes the air to the heat pump’s evaporator. Here,
the air releases the heating energy to the refrigerant and the air's
temperature drops. The cold air is then blown out of the heat
pump.
B
Refrigerant circuit
A gas circulates in a closed system in the heat pump, a refrigerant,
which also passes the evaporator. The refrigerant has a very low
boiling point. In the evaporator the refrigerant receives the heat
energy from the outdoor air and starts to boil.
C
The gas that is produced during boiling is routed into an electrically
powered compressor. When the gas is compressed, the pressure
increases and the gas's temperature increases considerably, from
0 °C to approx 80 °C.
D
From the compressor, gas is forced into a heat exchanger, condens-
er, where it releases heat energy to the indoor module, whereupon
the gas is cooled and condenses to a liquid form again.
E
As the pressure is still high, the refrigerant can pass an expansion
valve, where the pressure drops so that the refrigerant returns to
its original temperature. The refrigerant has now completed a full
cycle. It is routed to the evaporator again and the process is re-
peated.
F
Heat medium circuit
The heat energy that the refrigerant produces in the condenser is
retrieved by the indoor module's water, the heating medium,
which is heated to 55 °C (supply temperature).
G
The heating medium circulates in a closed system and transports
the heated water's heat energy to the house radiators/heating
coils.
H
The indoor module’s integrated charge coil is placed in the boiler
section. The water in the coil heats up the surrounding domestic
hot water.
I
9
JÄSPI Inverter Nordic
Chapter 2 |
Installation function
