Unico R 12 HP can provide year round cooling and heating. It is a fixed through the wall air cooling and heating solution that doesn't require the installation of an outdoor condensing unit. The difference between the Unico smart model and the R unit is that when the temperature drops below 2 degrees, the unit changes from HP to an electric heating mode. This means it will continue to supply heat in minus temperatures. Once the temperature goes back above 2 degrees, the electric heating mode turns off and automatically goes back to HP.
The system fits onto the wall with two holes that are drilled to the outside to provide the air inlet and outlet for the system. All that is visible from the outside are two small round air grills. For more information please look at the technical PDF below: