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Italiana Camini Dida Idro Manual

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ENGLISH
INSTALLATION
PLUMBING
Plumbing depends on the type of system.
However, there are some “general rules”:
• Plumbing must be carried out by qualified
personnel.
• The hydraulic system must operate at a pressure
between 1 and 1.5-2 bars at running temperature
(hot) in a closed vessel circuit.
• N.B.: The boiler SHOULD NOT be installed in place
of, for example, an open vessel installed kitchen
range without adjusting the expansion system to
closed vessel.
• The presence of an accumulator (tank) is
recommended but not mandatory. Its advantage is
that it releases the boiler from “sudden” requests
from the system and can be integrated with other
heat sources. It reduces fuel consumption and
increases the efficiency of the system.
• The return temperature of water to the boiler stove
must be higher than 50-55° C to prevent the forming
of condensation.
• An accumulator (tank) is needed to heat low-
temperature radiant panels and must be installed
according to the panel manufacturer's instructions.
• The material used in the circuit must be suitable to
withstand overheating.
• Check that the plumbing is carried out properly and
is fitted with an expansion vessel that is sufficient to
ensure safety.
If the expansion tank is built into the boiler
stove, this does NOT ensure proper pro-
tection against the thermal expansion in-
curred by water in the entire system.
Therefore, installers should assess wheth-
er an additional expansion tank is needed,
depending on the type of system.
•
The installer must determine whether or not to use
conditioned products. In Italy, refer to UNI 8065-1989
(Water treatment in heating systems for civil use).
•
Direct plumbing to radiators prevents proper operation,
owing to the small diameter of their pipes.
• The safety valve bleed must be reachable and visible.
Waste water must be conveyed via a vertical pipe
through a funnel with backflow air vents, at a suitable
distance from the point of drainage.
This pipe must have the following characteristics:
- It must begin no more than 50 cm from the drainage
point of the valve and must be in the same room as the
appliance.
- It must be vertical for no less than 30 cm.
After this, the pipe can continue horizontally with a
slope that allows the flow of the water
- The pipe diameter should be at least one size larger
than the nominal size of the valve outlet.
- The end of the pipe must discharge into the sewage
system.
IT IS FORBIDDEN TO INTERCEPT THE DIS-
CHARGE.
PRESSURE GAUGE (A)
placed on the boiler stove (see figure below) enables
you to read the water pressure in the boiler stove.
A
®
… 12 …


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