16
DOMIcompact F 24 D
Choosing the restrictor using
concentric pipes
Choosing the restrictor using
two pipe system
2.6 Flue system
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.
Restrictors
Boiler operation requires fitting the restrictors supplied with the unit as instructed in the following
tables.
The restrictor Ø43 is fitted as standard on all boilers.
Before inserting the flue outlet pipe, it is therefore necessary to check there is the right restrictor
(when it is to be used) and that it is correctly positioned.
Type
Length up to:
Restrictor to use
Concentric
60/100
1 bend + 1 metre
43 mm
1 bend + 4 metres No restrictor
Concentric
80/125
1 bend + 3 metres 43 mm
1 bend + 4 metres 47 mm
1 bend + 5 metres No restrictor
Pipe length calculated
in linear metres
Restrictor to use
Min
Max
0 m
15 m
43 mm
15 m
38 m
47 mm
38 m
48 m
No restrictor
1
2
4
3
3
5
6
1
2
Diaphragm
Restrictor
Содержание DOMIcompact F 24 D
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