CoolPack’s system sizing feature helps in designing refrigeration systems by allowing users to input specific requirements, such as cooling capacity, evaporator and condenser temperatures, and refrigerant type. The software then calculates the required component sizes, including compressors, condensers, and evaporators, to ensure that the system meets the specified requirements. This feature saves time and reduces the risk of oversizing or undersizing components, which can lead to energy waste and reduced system efficiency.