Water Connections - emmeti EQ 2018 Manuel D'installation Et D'utilisation

5. INSTALLATION

5.6 Water Connections

¸
Key
1 Sanitary cold water inlet
2 Shut-Off Valve
3 Water Filter
4 Check valve (not supplied)
5 Expansion Tank ≥ 25 litres
6 Accumulator/Drain Cock
7 Dielectric Joint for sanitary water supplied with the unit
8 Safety valve P&T (Pressure & Temperature) supplied with the unit
(Mandatory installation)
9 Mixing valve
WARNING
Must comply with current regulations for the installation of the unit
with respect to:
- The design, installation, testing, and maintenance of the plant (e.g.
UNI EN 806 and UNI 9182:2018 ),
- The treatment of the water used to feed the plant (e.g. , UNI
8065:1989),
- The quality of water intended for human consumption (e.g. Legislative
Decree February 2, 2011, no. 31 ).
To honor the warranty the water must not have a chloride content
of >250 mg/l, or a pH<6, or have a saturation index >+0.4 , or if
corrosive, a saturation index < -1.0.
Water connections must be performed according to the diagram and the
instructions supplied, supplied by the system designer and respecting the
water inlets and outlets.
The hydraulic circuit must be created according to the following recom-
mendations:
¹
NOTE:
The scheme is to be considered indicative and the
actual installation must be decided by the plant
project designer.
º
µ
 Normally Closed (NC) Electric Valve for thermal discharge
(Mandatory accessory with solar panels connected)
 Solar pump group (only model EQ 3018 ES)
 Expansion tank for thermal solar panel (only model EQ 3018 ES)
 Thermal solar panel (only model EQ 3018 ES)
 Thermal solar panel probe supplied with the unit (only model EQ 3018 ES)
 Valve for loading and unloading of the thermal solar circuit
(Only for model EQ 3018 ES)
 Air inlet pipe
 Air exit pipe
• It is advisable to install shut-off valves which allow isolation of the most
important components in the system.
All valves (they can be spherical, globe or butterfly), must be measured
in such a way as to prevent leaks as much as possible when they are
open.
• Drainage outlets must be located at the lowest points in the system.
• In the hydraulic system a pressure reducing device must be installed in such
a way that the pressure is never greater than 6 bar.
The water inflow must be protected using an extractable mesh filter. The
filter must have a mesh calibre of at least 10 links/cm
• After installation and after each repair operation, it is necessary to clean
the entire system carefully, paying special attention to the filter.
• All piping must be insulated and adequately supported.
• It is prohibited to use untreated lake, river or underground water.
GB GB
.
2
47