Evacuated tube collectors CPC OEM

For water heating and backup heating, series connection

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:

  • on-roof installation
  • flat roof / wall installation
  • horizontal installation
Series   OEM21
Number of evacuated tubes  21
collector energy output scale (50°C/75°C) (Solergy) 1)   A+++/ A+++
annual collector energy output (50 °C Würzburg) kWh/ Jahr 1201
energy output per collector module 2) W 907
energy output per collector module 3) W 998
product data according to Commission Regulation (EU) No 811/2013 and 812/2013 (Erp-relevant Data) regarding aperture area
Asol collector aperture area 1,33
η0 zero-loss efficiency   0,750
ηcol collector efficiency  % 68
a1 first-order coefficient W/(m² K) 1,44
a2 second-order coefficient W/(m² K²) 0,007
IAM incidence angle modifier   1,27
other product details
gross area 2,38
collector dimensions (length x width x height) m 1,64 x 1,45 x 0,10
collector contents l 2,76
weight of empty collector kg 46,0
max. operation pressure bar 10
max. stagnation temperature °C 239
connection-diameter, compression fitting mm 15
sensor sleeve mm 6
colour (aluminium frame profile, anodized)   aluminiumgrau, Eloxal
colour (plastic parts)   schwarz
conformity 4)   Druckgeräterichtlinie 2014/68/EU
impact resistance test according to ISO 9806 mm 35
tests and licence   ISO 9806, Solar Keymark
DIN CERTCO-licence number   011-7S114R
Order No. 08-1060
1) usable only with own Solar Keymark certification, details refer: and
2) At 1000 W/m² and 40 K temperature difference between the average collector temperature and ambient temperature.
3) At 1000 W/m² and 0 K temperature difference between the average collector temperature and ambient temperature.
4) existing certification of collectors by TÜV SÜD Industrie Service GmbH for Ritter Energie- und Umwelttechnik GmbH & Co.KG; Validity within Germany. A separate certification according to Pressure Equipment Directive can be applied for at TÜV when needed.

Pressure loss of the Ritter Gruppe evacuated tube collector OEM 21

  • Heat distribution medium: Tyfocor LS, medium temperature 40°C
Pressure loss evacuated tube collector

Power curve of the Ritter Gruppe evacuated tube collector OEM 21

  • (G = 1,000 W/m²)
collector power curve
OEM collector
OEM collector