21PCS 1500mm Pressurized U Pipe Evacuated Solar Vacuum Tube Collector with Gross Surface Area 2.37m2 & 74.5 Absorption Rate
- Minimal order
- 100 pieces
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Product Specifications
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Product Description
* High system efficiency without light pollution.
For water and space heating.
Scope of Delivery
Fully pre-assembled unit comprising
- evacuated tubes based on the thermos flask principle
- manifold with direct flow heat conduction unit and dry tube connection
Collectors are packed in individual boxes. In addition, there is a sun protection sheet over the evacuated tubes.
Installation types
- Pitched roof, flat roof, horizontal
Advantages and benefits
- Specially developed for applications that require horizontally mounting.
- Short installation times due to complete pre-assembled collectors.
- Simple and reliable connection technology in order to extend several collectors side by side through pre-assembled screw connections. Further tubing and an extensive thermal insulation is not necessary
- Integrated return pipe and highly efficient thermal insulation.
- Manageable module sizes for a very high performance and a quick and easy installation.
- Flow and return pipes may be fitted on the left or the right side of the manifold.
- High flexibility due to the different widths and lengths of the collectors.
- Quick and easy exchange of the evacuated tubes without using any tools.
Performance characteristics
- Low pressure loss allows several modules to be connected in series
- Minimum of soldering points ensures a high leakage safety
- Well-known indestructibility of Ritter Solar tubes confirmed by the hailstone test DIN EN 12975-2
- High energy yield in the transitional period and winter
- In wintery conditions with a 400 W/m² irradiation and 0 °C air temperature at a temperature of 20 °C, Ritter Solar evacuated tube collectors already have a higher energy yield than flat collectors.
- Extremely low heat loss due to the high vacuum.
- Outstanding design.
Specification
| Series | U1521 | |||
| Number of evacuated tubes | 21 | |||
| η in relation to aperture, EN 12975 | % | 74.5 | ||
| c1 with wind, in relation to aperture | W/(m2k) | 2.007 | ||
| c2 with wind, in relation to aperture | W/(m2k2) | 0.005 | ||
| Yield forecast (location Wurzburg, Germany, reference area 3 m2) | kWh/m2a | 780 | ||
| Yield forecast (location Wurzburg, Germany, reference area 5 m2) | kWh/m2a | 619 | ||
| Grid dimensions (length x height x depth) | m | 1.45 x 1.64 x 0.10 | ||
| Gross surface area | m2 | 2.32 | ||
| Aperture area | m2 | 1.33 | ||
| Collector contents | l | 2.5 | ||
| Weight | kg | 51 | ||
| Max. working overpressure | bar | 10 | ||
| Max. stagnation temperature.1) | °C | 220 | ||
| Connection diameter, compression fitting | mm | 15 | ||
| Sensor sleeve | mm | 6 | ||
| Collector material | Al / Cu / glass / silicone / PBT / EPDM / TPE | |||
| Glass tube material | borosilicate glass 3.3 | |||
| Selective absorber coating material | aluminium nitride | |||
| Glass tube (Ø ext./Ø int./wall thickn./tube lgth.) | mm | 47/37/1.6/1500 | ||
| Colour (aluminium frame profile, anodised) | aluminium grey | |||
| Colour (plastic parts) | black | |||
| Thermal shock test / ITW test number | 06COL517 | |||
| Hailstone test according to DIN EN 12975-2 / TUV test number | 435/142448 | |||
| EC type examination | Z-IS-DDK-MUC-07-08-100029919-003 | |||
| DIN CERTCO registration number | 011-7S1990 R | |||
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