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PLUMBING CONNECTION
The plumbing connection depends on the type of system.
However, there are some "common rules":
• The plumbing connection must be carried out by qualifi ed
personnel who can issue documentation declaring correct
installation conforming to current law in each country (for
example, in Italy according to Ministerial Decree 37/2008 and
standard UNI 10412-2)
• The plumbing system must operate at a pressure between 1
and 1.5-2 bar on a hot closed-vessel circuit.
Note: DO NOT install the boiler in place of, for example, a
thermocooker installed with an open vessel without an adequa-
te expansion system making it a closed vessel.
• The separation of the primary from the secondary circuit is
ideal and, in some countries, it is also mandatory in case of the
installation of a heating plant (for example, in Italy, the referen-
ce is the Circular from ISPESL, now INAIL, of April 2011).
This separation is easily carried out using KIT A2 from Edilka-
min.
• The presence of a puffer (inertial storage tank) is recom-
mended but not mandatory. Its presence has the advantage of
freeing the boiler from "sudden" demands from the heating
system and allowing the integration of other heat sources. It re-
duces consumption and increases the effi ciency of the system.
• The hot water exiting from the output of the stove must be
"directed" differently depending on the objective (heating,
radiators, exchanger, whether or not there is a puffer, etc.)
• The return temperature of the water at the boiler must be at
least 50-55°C to avoid condensation. Depending on the system,
the installer must determine if anti-condensation valves or
pumps are necessary.
• A puffer (inertial storage tank) is needed for heating any
installed low-temperature under-fl oor heating panels according
to the guidelines of the manufacturer of the panels. The under-
fl oor panels should not receive water directly from the boiler.
• The material used in the circuit must be suitable to withstand
any overheating.
• The discharge of the safety valve must be accessible and
visible.
The discharge water must be channelled into a vertical pipe
using a funnel with backfl ow air intakes, appropriately spaced
from the discharge point.
The conveying pipe must have the following characteristics:
- Must not originate more than 50 cm from the discharge of the
valve and must be positioned in the same room where the KIT
is positioned.
INSTALLATION
- Must have a vertical expansion of not less than 30 cm.
After which the pipe can continue horizontally with a gradient
that fosters the fl ow of water.
- The diameter of the pipe must be at least one measurement
larger than the nominal measurement of the discharge of the
valve.
The end of the pipe must discharge into the sewer system.
IT IS FORBIDDEN TO SHUT OFF THE DISCHARGE
• Verify that the hydraulic system is correctly installed and is
equipped with an expansion tank that is suffi ciently large to
guarantee safety.
The presence of a tank within the boiler-stove does NOT
guarantee appropriate protection from thermal expansion
occurring in the whole system.
Therefore the installer must assess whether an additional
expansion tank is needed, depending on the type of system
installed.
• Fill the system using the fi lling tap (it is recommended not to
exceed a pressure of 1,5 bar).
When fi lling, 'bleed' the pump and the relief tap.
• It is possible that it will be necessary to open the vent during
the initial days of operation to release air in the system.
Fig. 2
• Based on the type of water, the installer must determine whe-
ther or not to use conditioned products according to UNI 8065-
1989 (treatment of water in heating systems for civil use).
• As indicated on page 71, the boiler has a low-consumption
circulator to be set for the primary circuit according to its char-
acteristics.
• Due to the small diameter of the pipes themselves, direct con-
nection to the radiators prevents normal operation.
• Below are several diagrams of "typical" installations provided
by Edilkamin.
The accessories for their implementation are available from your
dealer.
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V2
V1
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