FRAME AND INSULATION The frame and the bottom of the manifolds are made of wood treated with a water-repellent impregnating agent. This solution guarantees a strong reduction of condensation. The special internal mineral wool lining ensures perfect insulation and reduces heat loss. ABSORBER The absorber represents the heart of the solar collector. Its function is to collect solar energy and transmit it to the accumulator. The stratified copper plate that composes it allows an absorption of 95% and an emission of 5%. Thanks to an innovative technique, the tubes and the copper plate have been welded without damaging the coatings, while ensuring a high transmission of lowering between the two parts. GLASS The glasses used for the VELUX solar collectors are tempered reinforced glass with a thickness of 4 mm. Thanks to the absorption efficiency, VELUX was able to install glazing with a light transmittance coefficient of 90.5%, a much higher value than the glazing used for traditional windows. COVERING AND FITTING The gray plasticized aluminum coverings and fittings ensure perfect functionality in any climatic condition, VELUX solar collectors and roof windows use the same type of fittings (with pleated apron in the lower part). This unique feature guarantees perfect and harmonious integration into the roof covering. FLEXIBLE CONNECTION PIPE AND THERMAL PROBE VELUX has developed a system of flexible pipes that guarantee a quick, easy and safe connection between the solar collectors and the storage system. These are flexible stainless steel pipes, equipped with special insulation, which are characterized by their remarkable resistance to corrosion. The conical connections used do not require gaskets. Inside the insulation passes the cable of the thermal probe which measures the temperature of the primary liquid inside the collectors. TANK The VELUX storage tank, entirely made of stainless steel, is supplied complete with a pre-assembled and preconfigured pump and control center. Thanks to the sophisticated Dram Back system, the system does not require any type of periodic maintenance. The electronic control unit is equipped with a self-diagnostic system that allows any malfunctions to be identified in real time. The tank is equipped with two stainless steel coils. The first is connected to the primary circuit of the solar collectors. The second can be connected or an external auxiliary burner. F.lli Trotta srl - Via Calice, 22 / B - Finale Ligure - Telephone 019.690763 / 4 - VAT number: 00167450097 - info@trottaedilizia.it