CTC Union CombiAir 12-UK 1x230V, Руководство пользователя

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An air/water heat pump can use the outdoor air to heat up a home. The
conversion of the outdoor air’s energy to residential heating occurs in
three different circuits. In the brine circuit, (1) , free heat energy is retrieved
from the surroundings and transported to the heat pump. The heat pump
increases the retrieved heat’s low temperature to a high temperature in
the refrigerant circuit, (2) . The heat is distributed around the building by
the heating medium circuit, (3) .
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 approx. 5 °C to
approx. 80 °C.
D
From the compressor, gas is forced into a heat exchanger, condenser,
where it releases heat energy to the heating system in the house,
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 repeated. F
Heat medium circuit
The heat energy that the refrigerant produces in the condenser is retrieved
by the climate system's water, 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 heating energy to the house water heater and radiators/heating
coils. H
The temperatures are only examples and may vary between different installations and
time of year.
13 CTC CombiAir Chapter 2 | The heat pump – the heart of the house