ATW MINI 11 User Manual - Page 6
Browse online or download pdf User Manual for Heat Pump ATW MINI 11. ATW MINI 11 18 pages. Air-to-water heat pump
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7. OPERATING PRINCIPLE
The heat pump appliance is used to acquire low-temperature energy from the selected source and its transfer to
higher temperature level. The air to water heat pump extracts heat from the ambient air.
The core of the heat pump serves as an efficient compressor through which the refrigerant is compressed and
then expanded in a hermetically closed circuit. This process makes the best of the refrigerant qualities
case, the ecological refrigerant R410 is used.
On the entry side (outdoor unit and its evaporator), the outdoor air is run by the fan through the heat transfer
surface of the evaporator. The refrigerant, which passed through the expansion valve and is quenched to
temperature lower than the temperature of the ambient air, circulates inside the evaporator.
Refrigerant is warmed on the evaporator (for example from -17°C to -10°C) and the acquired heat is stored in
the refrigerant and is further pressed by the compressor and distributed into the condenser (indoor unit).
The refrigerant then condenses on the indoor unit plate exchanger and thus the heat is transferred to the
heating medium (heating water).
The condensed refrigerant then heads back into the expansion valve and the whole cycle repeats itself over and
over again.
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