Unit Selector Hybrid is a custom-designed selection software developed by Unilab, a renowned heat transfer software provider, for Isbanya. This software holds certifications from Eurovent (European Association of Manufacturers of Ventilation, Air Conditioning, and Heat Recovery Equipment) and AHRI (Air-Conditioning, Heating, and Refrigeration Institute), enabling precise control over cooling capacity and pressure drop from the initial design phase of heat exchangers. The product's performance has been validated through practical application.