DeDietrich SR 130, Руководство по установке

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SR 130 29/05/06 - 300009755-001-H
2.6 Pressure reducer
If the supply pressure exceeds 80% of the valve or safety unit setting
(e.g. 5.5 bars for a safety unit set at 7 bars), a pressure reducer must
be installed upstream of the DHW tank. Install the pressure reducer
downstream of the water meter in such a way as to ensure the same
pressure in all of the pipes in the installation.
2.7 Bleed circuit
During the heating process, water can flow through the
bleed circuit to guarantee the safety of the installation. Do
not block!
2.8 Measures to take to prevent hot water blow back
Fit a non-return valve to the domestic cold water circuit. If using a closed calorifier, the non-return valve must be easily
accessible
2.9 Hydraulic connections
9. Isolation valve
28. Domestic cold water inlet
29. Pressure reducer - If the supply pressure exceeds 80% of the valve
or safety unit setting (e.g. 5.5 bars for a safety unit set at 7 bars), a
pressure reducer must be installed upstream of the DHW tank
30. France: Safety unit
a. Cold water inlet with an integrated non-return valve
b. Connection to the DHW tank cold water inlet
c. Stop cock
d. safety unit 7 bar
e. Drain opening
Germany : 10-bar safety valve
57. Domestic hot water outlet
57 28
8953N155