auroSTEP pro Thermosyphon System

auroSTEP pro Thermosyphon System

auro STEP pro thermosyphone technology for installing on the roof
  • Simple solar system of thermosyphon storage technology
  • Simple installation and affordable price
  • High quality solar collector

Overview Features and benefits Downloads

auroSTEP pro Thermosyphon System

 

Vaillant's auroSTEP pro solar water heating system contains a storage which is installed on the roof directly above the collector/s. Well crafted collectors, enameled "tank-in-tank" storages and a coated mounting bracket give the system the known Vaillant quality. The storages are available in the capacities of 150, 200 and 300 liters of domestic hot water.

When the solar earnings are not sufficient to cover the warm water demand, electrical backups of 2 or 3 kW can be added to the slar water heater. You get further warm water comfort without big installation efforts.

auroSTEP pro at a glance

  • Simple solar system of thermosyphon storage technology
  • Simple installation and affordable price
  • Steal supports for installation on flat or sloping roof, coated with corrosion protection
  • Installation in warmer areas
  • Electrical back-up can be added to the system
  • High quality solar collector
Features and benefits unit VFK 750
Gross collector area/ Net collector area 1,97 / 1,77
Efficiency % ηo = 75
Stagnation temperature °C 120
Operating pressure bar 10
Volume l 1,1
Tranmission % 88,5
Dimensions:Width / Depth / Height mm 990 / 79 / 1990
Net weight kg 42
Product properties Thermosyphon warm water storages unit VIH S 150 T VIH S 200 T VIH S 300 T
Nominal storage capacity l 141 178 285
Max. operating pressure storage bar 10 10 10
Max. hot water temperature °C 85 85 85
Stand-by energy loss W / K 1,8 2 2,9
Area heat exchanger 0,8 0,9 1,67
Volume heat exchanger l 7,7 8,7 19,5
Dimensions: Outer diameter / Height mm 500 / 1323 530 / 1323 530 / 2083
Weight kg 59 67 106
Weight ready for operation kg 208 254 411
auroSTEP pro solar packages
Package 1 : 150 liters tank volume + one plate-collector
Package 2 : 200 liters tank volume + one plate-collector
Package 3 : 300 liters tank volume + two plate-collectors

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