The project aims to improve energy efficiency and reduce the carbon footprint of the enterprise, whose main activity falls under NACE-2008: 26.12 “Manufacture of assembled electronic boards.” The company is an established manufacturer of electronic products and a provider of services in electronic assembly, component supply, resin casting, and cable harness production. The production activities are carried out in Ruse, requiring precise microclimate control to ensure the quality and reliability of electronic components. To enhance energy efficiency, the project envisages the installation of three high-efficiency air-handling units (climatic chambers) with different capacities – 4,500 m³/h, 4,000 m³/h, and 2,000 m³/h – which will ensure the supply and treatment of fresh air with controlled temperature, humidity, and purity. The systems will enable full air treatment processes and will comply with the following standards: BDS EN 13053:2020 – Ventilation for buildings. Air handling units. Ratings and performance for components and sections; BDS EN 14825:2019 – Energy efficiency class A+++, with SCOP ≥ 3.80 and SCOPnet ≥ 5.00; VDI 6022 – hygiene and indoor air quality requirements; Energy efficiency class of electric motors ≥ IE3, IE4, or IE5. The planned air-handling units are suitable for indoor or outdoor installation and will be integrated with a VRV control system and steam humidification sections to maintain the required humidity levels. The implementation of the project will result in reduced energy costs, optimized microclimate, and lower carbon emissions, thereby achieving higher resource efficiency, lower energy intensity, and sustainable enterprise development in full compliance with the objectives of procedure BG16RFPR001-2.004 “Energy efficiency and use of energy from renewable sources in enterprises” and the DNSH principle – “Do No Significant Harm.”
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