AIR TO WATER PRINCIPLE
The outdoor unit (evaporator + fan – placed outside / indoor compact type) suck the air (input thermal medium).
Outdoor unit extract thermal energy from the air medium and cool down air is blown into the outside.
The indoor unit (located in the object or technical room / outdoor compact unit), ensures the production of heating water and hot water (SHW/DHW).
Advantages
- price/performance ratio
- universal use
- simple installation
Disadvantages
- less efficient in heavy frost
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