The report summarizes the performance evaluation of a split-type air-conditioning system enhanced with a thermx solar panel installed at the Klimor service building in Gdynia, Poland. Testing revealed significant energy savings of 11% to 44% during operation with the thermx panel compared to without it, contributing to reduced electricity consumption and compressor operation time. Overall, the findings demonstrate that increased solar insolation leads to improved energy efficiency and a longer lifespan for the compressor.