Specifications:
The document describes a high-quality flat plate solar collector known as the Sunnyline. It is designed to be highly resistant to corrosion and oxidation, featuring a highly selective full area copper-copper absorber and special internal hydraulics for optimal solar energy exploitation. The collector is suitable for various assembly configurations, including roof-integrated, on-roof, flat roof, and facades. It offers low fitting costs due to straightforward pipework and comes with a 10-year material guarantee.

Technical Data:
The Sunnyline collector is available in two models, Sunny 21 and Sunny 28, with dimensions of 1,785 x 1,155 mm (2.1 m²) and 2,400 x 1,155 mm (2.8 m²) respectively. The aperture surface is 1.82 m² for Sunny 21 and 2.5 m² for Sunny 28. The empty weight is 40 kg for Sunny 21 and 50 kg for Sunny 28, with capacities of 1.08 liters and 1.3 liters respectively. The conversion factor is 0.78, and the heat loss factor is 3.4 W/m²K. The rate of flow ranges from 20 to 70 l/m²h, with a pressure loss of 4.7 mbar/m². The collector features a 4 mm solar safety glass cover and a maximum operating pressure of 10 bar.

Construction Features:
The collector includes front-facing 1/2” OT connections, a full area absorber welded to heat transfer medium pipes, rock wool insulation low in fixing agents (50mm), automatic split ring ventilation, solar safety glass, surface sealing joints, a welded aluminium casing, and a glass holding profile.

Benefits:
The Sunnyline collector is designed to make users independent by eliminating the use of plastics, wood, and rubber seals in its construction. It is compatible with solar thermal plants and biomass boilers, ensuring efficient and sustainable energy use.