INSTALLATION INSTRUCTIONS
CONDENSING BOILOES WITH STORAGE - TG05A095.A0306
24
3.13 Flue connections
In order to ensure that the appliance functions correctly and efficiently, the flue connection between
the boiler and the flue terminal must be made using original components specifically designed for
condensing boilers.
Traditional flue components cannot be used for conveying exhaust fumes from condensing boilers,
nor vice versa.
●
In order to make the choice of which flue to install easier, in addition to being drawn differently, the above-
mentioned system is also differentiated in the flue catalogue and general price list by the insertion of the words
“…in polypropylene…” .
●
It is recommended that:
o
For the exhaust discharge duct, the
entire length of the flue slopes
upwards towards the exterior in
order to facilitate the flow of
condensate back to the combustion
chamber, which has been
specifically designed to collect and
drain the acidic condensate.
o
For the air intake, the entire length
of the duct slopes upwards towards
the boiler to prevent the entry of
rainwater, dust or foreign bodies
into the pipe.
●
In the case where a horizontal
coaxial system is installed, the
coaxial terminal must be positioned
horizontally in that the exhaust duct
has been specifically designed with
the required slope (
Ø
60) and the air
intake (Ø100)
has been suitably
protected against the weather.
Flue Duct connection
Connect the flue to the chimney in
accordance with the requirements of
UNI-CIG 7129/01, 7131/99 and D.P.R.
412/03 and subsequent amendments.
Do not allow the exhaust flue to
protrude inside the chimney; instead terminate it before it reaches
the flue duct.
The exhaust flue must be perpendicular to the opposite wall of the
flue duct (fig. 2).
Flue types
Exhaust flues for gas-fired appliances are classified at European level
(fig. 1) according to the method used for drawing combustion air to and
discharging exhaust fumes from the appliance. This classification
applies to gas-fired appliances in general.
Type
C
appliances
An appliance in which the combustion circuit (air intake, combustion chamber, heat exchanger and fumes exhaust
discharge) is sealed off from the room in which the appliance is installed, i.e. room-sealed.
The combustion air intake and the fumes exhaust discharge are connected directly to outside the room.
80
70
6 0
0.5
50
ON
4 0
C32
C12
C52
C42
C82
4 0
ON
50
0.5
6 0
70
80
40
ON
5 0
0. 5
6 0
7 0
8 0
8 0
7 0
60
0.5
5 0
ON
4 0
8 0
7 0
60
0. 5
5 0
ON
40
Fig. 1
Fig. 2
FLUE OR
CHIMNEY
Содержание RKA 25
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