Technical Manual
14
ECO
3.4 Main Components
3.4.1 General Diagram of Assembly
CAPTION
1
Shut Off Valve
7
Drain Valve
2
Pressure Reducing Valve (3 bar / 0,3 MPa)
8
Circulation Pump
3
Non-return Valve
9
Thermostatic Mixing Valve
4
Safety Group (7 bar / 0,7 MPa)
A
Cold Water Inlet
5
Drainage Siphon
B
Hot Water Outlet
6
Expansion Vessel
C
Recirculation
WARNING
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).
1
2
3
1
5
6
7
1
8
3
1
9
B
C
A
4
