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4.5
PLUMBING FIXTURE
EXPLANATORY NOTES
[1] Shutoff valve
[2] Pressure Reducing Valve (3 bar / 0,3 MPa)
[3] Return Valve
[4] Safety valve (7 bar / 0,7 MPa)
[5] Drainage Siphon
[6] Expansion Vessel
[7] Drain Valve
[8] Circulating pump
[9] Thermostatic Mixing Valve
[A] Cold Water Inlet
[B] Hot Water Outlet
[C] Circulation
It is necessary to install a safety device at the cold water inlet of the appliance. The safety device
must be in compliance with the standard EN 1487:2002, maximum pressure 7 bar (0.7 MPa)
Water must not be stopped from flowing from the safety device to the deposit by any sort of
accessory.
The safety device must be connected with piping whose diameter is not less than the cold water
inlet coupling. The discharge must be connected to a sewage siphon or, if this is not possible,
elevated to a distance of at least 20 mm from the pavement to allow visual inspection.
To prevent high pressure from main water supply, install a pressure reduction valve set to 3 bar
(0.3 MPa).
The Manufacture is not responsible for damage related to not following these recommendations
/ warnings.
WARNING
