SUNblue® 21

With our high efficient solar collector you will increase your solar yields to the maximum with perfect price-performance ratio.
We have optimized our SUNSET-Primus. Now, due to the new connection method, the mounting is even faster and easier as well as the handling because of the light weight.

Art.-Nr. 503000

Technical Data
collektor area: 2,18 m²
absorption area: 2,0 m²
length: 1.870 mm
width: 1.150 mm
height: 95 mm
net weight: 34 kg
water volume: 1,13 l
max. operating pressure: 10 bar
max. stagnancy temperature: 203°C
recommended flow rate: 50 l/h pro m² (low flow: 20l/h)
spec. decrease in pressure: 10mbar
performance warranty: 6 years (except glass)
The Absorber
The water-bearing copper tubes are laserwelded to the absorber and hence ensure a max. heat transfer.
The innovative absorber connection via elastic spacing strips guarantees a precise and solid stabilisation of the absorber. The defined distance between absorber and the glass enables a constant efficiency during operation. By this a contact between glass and frame can be excluded.

The coating
Another highlight of the SUNblue® series is the high efficient and environmentfriendly
coating. The absorption rate of the solar-radiation is 95%, with only 5% emissions.
For comparison: a common black chrome coated collector has an absorption rate of approx. 90%, with 10% emissions.
During the production process only a minimum of energy is required and no pollutants or harmful substances are produced.

The casing
The self-supporting collector casing is made of molded aluminium and is silver powder-coated. The back board is protected against mechanical damages trough structured aluminium plates.

Glass
The front glass is a 3.2 mm thick solar safety glass. Due to its low iron content of 0,03% it has a high light transmission of 92%. The prismatic inside prevents losses of efficiency trough reflection of the heat radiation. To ensure a high breakproofness and steadiness, the glass is heat tempered and protected against wind speeds up to 250 km/h.

Isolation
The isolation is made of a 50 mm thick environment-friendly mineral wool. The edges are completely isolated and free of thermal bridges.