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Edilkamin AQUAMAXI 28 Manual

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ENGLISH
SAFETY INFORMATION
IN CASE OF INSTALLATION ON OPEN
TANK SYSTEMS
The connections, start-up and check of proper operation must
be carried out by quali¿ ed personnel,
able to make the connections in accordance with current law
and, in Italy:
1 - The correct installation of the system is the responsibility
of the installer, who should take into account the standards
UNI 10683 - EN 13384-1 - UNI 10412-2
2 - Everything must be carried out by quali¿ ed personnel
according to Ministerial Decree 37, pursuant to Law 46/1990
3 - The safety and heat discharge valves should be checked at
least once a year by quali¿ ed personnel
Ministerial Decree 37, pursuant to Law 46/1990.
For installations implemented outside Italy, please refer to the
local regulations in the country of use.
The thermo ¿ replace and the system are ¿ lled with water that
À ows from the water inlet pipe (the diameter must not be less
than 18 mm) to the open expansion tank.
All the vents of the radiators must be opened during this
phase so as to prevent air pockets from forming in the system,
which would obstruct the circulation of water.
NB:
• The open tank should be positioned at a height greater than
3 m higher than the highest component of the primary circuit
and less than 15 m from the edge of the thermo ¿ replace.
• In any case, the tank must be high enough to create a greater
pressure than that produced by the pump (circulator).
• The system must never be ¿ lled directly from the water
mains as the pressure may be greater than that stipulated on
the data plate of the thermo ¿ replace, with resulting damage
to the thermo ¿ replace itself.
• The safety pipe to the expansion tank must allow the water
to À ow freely without shut-off valves and be appropriately
insulated to prevent the water inside from freezing, which
would compromise the connection.
• The water inlet pipe must not have taps nor curves.
• The maximum operating pressure must not exceed 1.5 bar
• The testing pressure is 3 bar.
• It is a good idea to add an anti-freeze liquid to the water
contained in the system or to observe standard UNI 8065.
• Never ignite the ¿ re in the thermo ¿ replace (not even as a
test) unless the system is ¿ lled with water as this could cause
irreparable damage.
• Connect the drains of the thermal relief valve (TRV) and
the safety valve (SV) (diagrams are found on the following
pages).
• The À ow test of the system must be carried out with the
expansion tank open.
• It is recommended to install a 6 bar safety valve on the hot
sanitary water circuit so as to drain any excessive increase in
the volume of the water in the heat exchanger.
• Place all the components of the system (circulator, heat
exchanger, valves, etc.) in easily accessible points for routine
and special maintenance procedures.
WATER TREATMENT
If need be, antifreeze, descaling and anticorrosive solutions
are to be added to the water.
A softener must be used if the hardness of the water used to
re¿ ll and top-up the system exceeds 35°f (French degrees).
IN CASE OF INSTALLATION ON CLOSED
TANK SYSTEMS
(provisions in addition to those provided for open tank
systems)
• The one or two-coil versions of the ¿ replace unit can be
installed on closed-tank systems IF the coil is used only for
cooling by connecting it to the optional heat discharge valve
(see Fig. 1).
• Be careful not to exceed 1.5 bar when ¿ lling the system.
• Only if a thermal relief valve actuates the coil can the
¿ replace be installed on a CLOSED TANK system (version
marked with the abbreviation CS).
• When connecting a thermo ¿ replace to an existing system,
an assessment must be made regarding a need for another
CLOSED TANK on the system.
- The upstream pressure of the cooling circuit must be at least
1.5 bar (UNI 10412/2 point 6.2).
Fig. 1
The thermal relief valve (TRV - provided by Edilkamin)
must be connected to the cooling circuit (AL) with a mini-
mum pressure of 1.5 bar.
JA = automatic relief valve
S = drain
Please refer to UNI 8065-1989 standard (water treatment in
domestic heating systems).
… 25 …


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