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 570/2 | VTK 1140/2 | |
---|---|---|
auroTHERM exclusive | ||
Number of tubes | 6 | 12 |
Peak output per collector module W | 642 W | 1278 W |
Area-related heat capacity | 8,3 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 circuit | 180 I/h | 180 I/h |
Absolute pressure in the high vacuum | 10mbar (10 bar) | 10 mbar (=10 bar) |
Grid dimensions (L x H x D) | 0.7 x 1.65 x 0.11 m | 1.39 x 1.65 x 0.11 m |
Gross area | 1,16 m2 | 2,3 m2 |
Aperture surface area | 1 m2 | 2 m2 |
Absorber surface area | 1 m2 | 2 m2 |
Collector capacity | 0,9 I | 1,8 I |
Weight | 19 kg | 37 kg |
System overpressure, max permissible | 10 bar | 10 bar |
Shutdown temperture, max | 272 °C | 272 °C |
Connection width, flow/return | 15 mm | 15 mm |
Material for the tube collector | AI/1.4301/glass/silicone/PBT/EPDM/TE | AI/1.4301/glass/silicone/PBT/EPDM/TE |
Material for glass tubes | Borosilicate 3.3 | Borosilicate 3.3 |
Material for selective absorber layer | Aluminum nitride | Aluminum nitride |
Glass tubes (outer diameter/inner diameter/ wall thickness/ tube length) | 47 / 37 / 1.6 / 1500 | 47 / 37 / 1.6 / 1500 |
Colour (plastic parts) | Black | Black |