THERMOSIPHONIC SOLAR WATER HEATERS / TECHNICAL DOCUMENTATION / JANUARY 2021 PAGE
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VII) HYDRAULIC CONNECTION OF SYSTEM [All systems]
Figure 3: Schematic of complete system. [1] Domestic cold water supply according to DIN EN 806 or
to country-specific regulations. [2] Water filter. [3] Pressure reduction valve MAX 10 bar. [4] Cut off
valve. [5] Non return valve + 10 bar safety valve. [6] Cold/hot mixer for domestic hot water use, e.g.
shower.
Figure 4: Thermosiphonic system layout and connections. [1] Domestic cold water supply, 10bar
safety valve + non return valve. [2] Hot water outlet. [3] Closed circuit, hot inlet port. [4] Closed
circuit, cold outlet. [5] 2.5 bar safety valve.
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