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U Pipe Evacuated Tube Solar Collector U1521

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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

-durable U Pipe Solar Collector
- 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.


Product Characteristics

1.     Low pressure loss allows several modules to be connected in series

2.     Minimum of soldering points ensures a high leakage safety

3.     Well-known indestructibility of Ritter Solar tubes confirmed by the hailstone test DIN EN 12975-2

4.     High energy yield in the transitional period and winter

5.     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.

6.     Extremely low heat loss due to the high vacuum.


Data Sheet

Series

U 1521


Number   of evacuated tubes


21

η0 in   relation to aperture, EN 12975

%

74.5

a1   with wind, in relation to aperture area

W/(m2k)

2.007

a2   with wind, in relation to aperture area

W/(m2k2)

0.005

Yield   Forecast (location Würzburg, Germany, reference area 3 m2)

kWh/m2a







780








Yield   Forecast (location Würzburg, Germany, reference area 5 m2)

kWh/m2a

619

Collector   dimensions (L x H x D)

mm

1447 x   1640 x 110

Gross   surface area

m2

2.37

Aperture   area

m2

1.98

Collector   contents

l

2.5

Weight

kg

51

Max.   working overpressure

bar

10

Max.   stagnation temperature

°C

220

Connection   fitting diameter

φ (mm)

15

Sensor   sleeve

φ (mm)

6

Collector   material


Al /   Cu / glass / silicone / PBT / EPDM / TE

Glass   tube material


Borosilicate   glass 3.3

Selective   absorber coating material


Cu /   SS-AIN / AIN

Glass   tube (Ø ext./ int./wall thickn./tube lgth.)


47/37/1.6/1500

Colour   (aluminium frame profile, anodised)


Aluminum   grey

Colour   (plastic parts)


Black

Thermal   shock test / ITW test number



06COL513/

Hailstone   test according to DIN EN 12975-2/TÜV test No.

435/142448

EC   type examination


Z-IS-DDK-MUC-07-08-100029919-003

DIN   CERTCO registration number


011-7S1990R

Package   dimensions (L x H x D)

mm

1590 x   1675 x 110


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