auroSTEP solar system
auroSTEP is manufactured in a German plant which is one of the most modern plants in Europe, with exclusive Vaillant components, with maximum quality, robustness and reliability.
Our system is innovative and different compared to competitors´ products – in its function and its manner of installation. It is a well-outlaid drainback system with high efficiency. In the interior of the installation we find a solar liquid (mixture of glycol and water) and air, therefore there is no need for determined hydraulic components as for example expansion vessel, exhaust fan, manometer…etc. as there is practically no pressure in the system.
When the central control unit puts the integrated pump in function, it begins to transport the solar liquid from the serpentine of the accumulator through the tubes to the solar panels where it is heated and sent back to the accumulator to heat the stored sanitary water. During standby the solar liquid is stored in the tubes at the bottom of the system, the collector contains nothing but air. Therefore there is no loss of efficiency due to stagnation of the system, different from pressurized solar systems.
When the central control unit puts the integrated pump in function, it begins to transport the solar liquid from the serpentine of the accumulator through the tubes to the solar panels where it is heated and sent back to the accumulator to heat the stored sanitary water. During standby the solar liquid is stored in the tubes at the bottom of the system, the collector contains nothing but air. Therefore there is no loss of efficiency due to stagnation of the system, different from pressurized solar systems.
Our auroSTEP range
| auroSTEP VSL S 150 consisting of: |
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The support of warm water production can be done via every mixed gas boiler of our range, via a solar kit even the electrical regulation thereof is possible (even without second heat exchanger in the storage). |
| auroSTEP VSL S 250 consisting of: |
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| The support of warm water production can be done via boiler of our range. |
| auroSTEP VSL S 250E consisting of: |
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| The support of warm water production is done via the electrical heating element. |
Advantage at a glance:
- Solar system with only 3 components: storage unit with integrated solar pump unit and solar control – all pre-assembled, flat plate collectors and tubing
- Well defined system combinations for standard installations – no detailed calculation required
- Solar system in 3 versions: monovalent with 2,2 m² collector area, bivalent with 4,4 m² and electric with 4,4 m² collector area (tank with e-patron 2 kW / 230 V)
- Storage volumes 150 and 250 litres
- Pre-filled drainback system – no filling procedure for the solar circuit needed during initial operation
- Quick and easy installation: “plug ‘n flow”
- High quality for an attractive system price – best value for money
- Premium product design: IF Product Design Award 2005
Features |
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| Differential temperature control for activating the solar circuit pump | Pump control according to demand |
| Filling/operating mode for the solar circuit pump | Anti-block system for the solar circuit pump |
| Calendar for automatic switching to daylight saving time | Absorber efficiency: 95% |
Benefits |
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| Easy system choice, small number of components to be installed, less interfaces mean low opportunities for failures | Operational reliability, no customer complaints and no additional goodwill services |
| Quick and easy initial operation with standard settings, but customising of settings possible | Simple checking of system parameters, error code feedback of the user interface, programming of the control possible |
| No need to select the right pump speed – pump is always working at the best speed | Presentable and attractive top quality product, suitable even for the (extended) living space. |
| Reliable solar system also at high solar irradiation and high temperatures | It is possible but not necessary to optimise the solar system for maximum solar gain or top comfort according to the specific needs & preferences of the user |
| System mode of operation and specific values at a glance, programming of comfort time slots possible | Low electric energy consumption, pump speed (and noise) is always as low as possible |