b!klimax+ Quadrotto HP is a ceiling heating and cooling for commercial applications, which uses a small number of components and offers high performance in terms of both heating and cooling, as certified by accredited testing laboratories. The system consists in metal tiles with Ø 8 mm PE-RT pipe, bevelled edge, micro-perforated surface and plain border of 30 mm. Thanks to the modular structure, hidden and fastened to the ceiling through adjustable hangers, they can be opened with a swinging (“trap-door”) system for inspection and maintenance activities.