Sustainable climate control for uncompromising precision in the manufacturing of high-precision metal components – with Hoval solutions

2026-11-123 min.

Tradition and precision are at the heart of ANG, a mechanical engineering company based in Luxembourg with a history spanning more than 100 years. The company’s workshop initially specialised in automotive engine repairs, but the second generation of management subsequently introduced another key area of activity: metal parts machining. Today, ANG uses state-of-the-art equipment to turn, mill and erode high-precision components with tolerances measured in thousandths of a millimetre. For its new building, the company opted for a Hoval air conditioning solution that delivers not only the required efficiency but also sustainability for its manufacturing operations.

The founder’s great-grandson relocated the company headquarters from central Luxembourg to an industrial estate. In 2023, the time came to construct a new building, whose planned structure presented two different features with requirements for the HVAC systems: a three-storey office wing and a large hall with a two-storey side wing. „The latter required a consistent temperature of 22°C in summer and winter alike in order to ensure that the laser-measured precision components would retain their exact shape,“ Hoval told BalkanEngineer.com.

The proposed solution has been simple yet impressive: it would use the Belaria fit (53) heat pump to provide heating and cooling for the site – which measures some 1000 square metres – through underfloor heating and cooling ceilings. “The inverter technology used enables this capacity to be modulated in the range from 40 to 100%. This means that both heating and cooling capacity can be optimised to meet prevailing requirements and the power consumption of compressors and fans is reduced in partial load operation,” Hoval specialists explained.

The air conditioning for the hall, measuring 8.6 metres in height, and for the side areas spanning more than 2000 m2 uses the RoofVent RP-6 supply and extract air handling unit with a capacity of 5500 m3 of fresh air and extract air per hour, plus the TopVent TP-6 recirculation unit, which has a capacity of 6000 m3 per hour.