Fume Ducts - Ferroli Domina Plus F 24-30 E Technical Manual

DOMINA PLUS F 24 - 30 E
FERELLA EXTRA F 24 - 30 MEL

Fume ducts

The unit is "type C" with an airtight chamber and forced draught, the air inlet and fume outlet must be connected
to one of the following extraction/suction systems. With the aid of the tables and methods of calculation
indicated, before commencing installation, it is first necessary to check that the fume ducts do not exceed the
maximum permissible lengths. The current standards and local regulations must be observed.
This C-type unit must be installed using the fume exhaust and suction ducts supplied by FERROLI
S.p.A. in accordance with UNI-CIG 7129/92. Failure to use them automatically forfeits all warranty and
liability of FERROLI S.p.A.
Diaphragms
Boiler operation requires fitting the diaphragms supplied with the unit as instructed in the following tables. As
the resistance of the fume ducts changes, the diaphragms make it possible to keep the combustion parameters
(CO , etc.) within the optimum operating range. Note that with low-resistance fume ducts, a high-resistance
2
diaphragm (small hole diameter) is used and vice versa.
Choosing the diaphragm using coaxial
pipes
Type Length up to:
1 bend + 1 metre
Coaxial
60/100
1 bend + 3 metres
1 bend + 3 metres
Coaxial
1 bend + 4 metres
80/125
1 bend + 5 metres
Changing the diaphragm
If inserting or changing a diaphragm, it is necessary to
remove the fan assembly, take out the fume coupling 1 and
insert the required diaphragm 2.
Boilers are fitted as
standard with the
smallest diaphragm in
the series.
Before inserting the fume outlet pipe, it is therefore
necessary to check there is the right diaphragm
(when it is to be used) and that it is correctly
positioned.
Version - 09.2002
Supplied By www.heating spares.co Tel. 0161 620 6677
Diaphragm
to use
F 24 F 30
50 mm 52 mm
No diaph. No diaph.
45 mm 50 mm
50 mm No diaph.
No diaph. No diaph.
N.B.:
The diameter
of the hole Ø
is stamped
on the
diaphragm
Choosing the diaphragm using
separate pipes
Pipe length Diaphragm
calculated in to use
linear metres
F 24
Min Max
0 m 13 m 45 mm
13 m 23 m 47 mm
23 m 38 m 50 mm
38 m 48 m No diaph.
2
Pipe length Diaphragm
calculated in to use
linear metres
Min Max F 30
47 mm
0 m 20 m
50 mm
20 m 35 m
52 mm
35 m 45 m
45 m 50 m No diaph.
.
1
.
25