The S7, S6 and S3 are multipurpose tanks. They are of similar construction apart from number of coils.
S7: No coils, click here to see a data sheet for the S7
S3: 1 coil, click here to see a data sheet for the S3
S6: 2 coils, click here to see a data sheet for the S6
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They are suitable for all kind of heating installations and work particularly well systems with lower operating temperatures such as condensing boilers, heat pumps and solar thermal. They can provide rapid recovery of domestic hot water temperatures due to the large mass of hot water surrounding the inner cylinder. Energy is saved due to the fact that any heat lost from inner cylinder goes back into heating circuit.
Capacity of buffer: 600L
Capacity of DHW: 200L
Material: ST 37.2
Welding: automatic welding (WIG and MIG)
Maximum working pressure of the tank: 3 bars
Maximum test pressure: 15 bars
Maximum working temperature: 95 C
Insulation: 100 mm thick polyurethane soft foam
External jacket: PVC
Diameter (mm) 990
Height (mm) 1910