This project addresses the improvement of the energy performance of HVAC production facilities in one of the key production buildings of our company. The aim of the project is the installation of HVAC with automatic control of the operation and performance of individual sections in connection with the operation of production facilities. Furthermore, the new HVAC system will be complemented by heat recovery and preheating (recovery) heat exchangers, which will significantly increase the energy efficiency of the entire HVAC system.