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Unvented Solar Cylinder - auroSTOR from Vaillant |
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Solar Technology from Vaillant |
| Solar thermal heating for domestic hot water is the fastest growing renewable technology across Europe. Using radiation from the sun, a sophisticated solar collector is used to transfer the maximum amount of energy possible in to a fluid which runs through the collector and which is then used to indirectly heat water in a storage cylinder. |
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This twin coil unvented solar cylinder manufactured from stainless steel has a 25 year warranty on the shell. It is available in 200, 250 and 300 litre volumes and is delivered with a 3kW back up immersion heater as standard. Each cylinder features two sensor pockets for simple straightforward connection of the control sensors and a 22kW rated coil for a rapid heat up. Insulation exceeds CHeSS best practice and heat loss is as low as 0.08kW/h.
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Technical Specifications |
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| Vaillant auroSTOR | auroSTOR 200 | auroSTOR 250 | auroSTOR 300 |
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Volume litres |
200 | 250 | 300 |
| Maximum water supply pressure bar | 10 | 10 | 10 |
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Operating pressure bar |
3.5 | 3.5 | 3.5 |
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Pressure reducing valve bar |
3.5 | 3.5 | 3.5 |
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Expansion relief valve bar |
6.0 | 6.0 | 6.0 |
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Expansion vessel charge pressure bar |
4.0 | 4.0 | 4.0 |
| Temperature & Pressure valve °C / bar | 95°C / 7 bar | 95°C / 7 bar | 95°C / 7 bar |
| Maximum primary circuit pressure bar | 2.5 | 2.5 | 2.5 |
| Weight (empty) kgs | 39 | 44 | 49 |
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Weight (full) kgs |
245 | 310 | 340 |
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Height mm |
1500 | 1790 | 2110 |
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Width (excluding connections and PRV) mm |
554 | 554 | 554 |
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Heat Loss kW / 24 hrs |
1.9 | 2.1 | 2.4 |
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Cylinder connections |
22mm compression | 22mm compression | 22mm compression |
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Secondary return connection |
G 3/4” | G 3/4” | G 3/4” |
| Electrical connections | 230/240 V, 50 Hz | 230/240 V, 50 Hz | 230/240 V, 50 Hz |
| Immersion heater length mm | 430 | 430 | 430 |