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auroTHERM exclusive (discontinued)

Solar thermal

  • Vaillant's highest annual solar yeild per sqaure meter
  • Small and lightweight design
  • MCS accredited

Overview

Attention: This product is now discontinued.

Specifications

Specifications

VTK 570/2VTK 1140/2
auroTHERM exclusive
Number of tubes612
Peak output per collector module W642 W1278 W
Area-related heat capacity8,3 kJ/(m2k)8,3 kJ/(m2k)
Volume flow (per m2 of collector surface)24 I/(m2h)24 I/(m2h)
Minium volume flow in the solar circuit180 I/h180 I/h
Absolute pressure in the high vacuum10mbar (10 bar)10 mbar (=10 bar)
Grid dimensions (L x H x D)0.7 x 1.65 x 0.11 m1.39 x 1.65 x 0.11 m
Gross area1,16 m22,3 m2
Aperture surface area1 m22 m2
Absorber surface area1 m22 m2
Collector capacity0,9 I1,8 I
Weight19 kg37 kg
System overpressure, max permissible10 bar10 bar
Shutdown temperture, max272 °C272 °C
Connection width, flow/return15 mm15 mm
Material for the tube collectorAI/1.4301/glass/silicone/PBT/EPDM/TEAI/1.4301/glass/silicone/PBT/EPDM/TE
Material for glass tubesBorosilicate 3.3Borosilicate 3.3
Material for selective absorber layerAluminum nitrideAluminum nitride
Glass tubes (outer diameter/inner diameter/ wall thickness/ tube length)47 / 37 / 1.6 / 150047 / 37 / 1.6 / 1500
Colour (plastic parts)BlackBlack

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