Tesy 
Combined storage tanks for heating systems and domestic hot water - tank in tank with two heat exchangers
V 15/7 S2 600 81 EV 150 40 C
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- High-quality enamel coating ensuring long operating life
- Low pressure buffer tanks (3 bars), designed to storage and distribute energy from up to 4 different heat sources
- Highly efficient PU insulation
- Efficient anode protection
- Option for installation of an electric heating element
- Option for installation of a thermal regulator
- Option for installation of a thermal sensor
| Net weight | 203 kg |
| Insulation | 100 mm |
| Heat exchanger surface S1 | 2.25 m² |
| Heat exchanger surface S2 | 1.04 |
| Heat exchanger capacity S1 | 13.7 L |
| Heat exchanger capacity S2 | 6.4 L |
| Heat losses ∆T 45K | 116 W |
| Energy class | C |
| Maximum operational temperature | 95 °C |
| Maximum operational temperature of the heat exchanger | 95 |
| Rated pressure of the heat exchanger | 6 bar |
| Diameter | 850 mm |
| Number of inlets | 4 pieces |
| Number of outlets | 4 pieces |
| Maximum working temperature coil heat exchanger | 110 °C |
| Actual capacity buffer tank | 408 L |
| Actual capacity hot water tank | 151 L |
| Minimum height of the premise | 2121 mm |