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Idiomas disponibles
5. INSTALLATION
5.6 Water Connections
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Key
1 Sanitary cold water inlet
2 Shut-Off Valve
3 Water Filter
4 Check valve
5 Expansion Tank ≥ 25 litres
6 Accumulator/Drain Cock
7 Dielectric joint supplied with the unit (compulsory installation
at least on the DHW inlet/outlet).
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
- The treatment of the water used to feed the plant
- The quality of water intended for human consumption
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.
It is prohibited to use untreated lake, river or underground water.
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.
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µ
Normally Closed (NC) Electric Valve for thermal discharge
(Mandatory accessory with solar panels connected)
Solar pump group (only model EQ 3021 ES)
Expansion tank for thermal solar panel (only model EQ 3021 ES)
Thermal solar panel (only model EQ 3021 ES)
Thermal solar panel probe supplied with the unit (only model EQ 3021 ES)
Valve for loading and unloading of the thermal solar circuit
(Only for model EQ 3021 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.
• A pressure reducing device must be installed at the cold water inlet so that
it never exceeds 3 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.
EN
EN
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