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ped, install an adequate filter on the gas pipe.
2.5
SYSTEM FILLING
Filling of the boiler and the system is done by
the system filling (fig. 24/a).
The charge pressure, with the system cold,
must be between 1 and 1.5 bar. Filling
must be done slowly so as to allow any air
bubbles to be bled off through the air valves.
2.5. 1
Emptying the system (fig. 4/b)
To drain the system, turn off the boiler and
to loosen with one key from 13 the appro-
priate download of some turns (fig. 4/b).
2.6
FLUES/CHIMNEYS
A chimney or flue for the evacuation of the
combustion products into the atmosphere
must correspond to the requisites prescri-
bed by the laws in force. In particular, the
specific prescriptions of law relative to boi-
lers with natural draught in collective pipes
(type B) and those for boilers with forced
draught (type C) must be respected.
2.6. 1
Ducting of existing chimneys
To recover or duct existing chimneys, ducts
declared suitable for the purpose by the
For discharge types C12-C42, use the diaphragm ø 87.5 only when the length of the coaxial duct
is less than 1 metre.
For discharge types C32, use the following diaphragm ø 87.5 according to the length of the duct
and without additional curves:
Installations with vertical
extension L. 200 code 8086908
Diaphragm
ø 87.5
L min = 1.3 m
L max = 2.5 m
IMPORTANT:
– Each additional 90°
curve installed reduces
the available length by
1.0 metres.
– Each additional 45°
curve installed reduces
the available length by
0.50 metres.
- The inser tion of the
condensation collector
(8) is obligatory for ver-
tical stretches of more
than 1.3 metres.
KEY
1
Coaxial flue kit L. 810 code 8084811
2 a Extension L. 1000 code 8096103
2 b Extension L. 500 code 8096102
3
Vertical extension L. 200 code 8086908
4
Additional 90° curve code 8095801
Fig. 4/b
6
Articulated tile code 8091300
7
Roof outlet terminal L. 1284 code 8091200
8
Vertical condensation collector L. 200 code 8092803
manufacturer must be used, and the instal-
lation and use modalities indicated by the
said manufacturer must also be followed
as well as the prescriptions of Standard
UNI 10845.
2.7
INSTALLATION OF COAXIAL
DUCT (versions "BF")
2.7. 1
Accessories 60/100 (fig. 5)
The 60/100 coaxial duct is supplied on
Installations with vertical condensation
Without
Diaphragm
diaphragm
L min = 1.3 m
L min = 1.3 m
L max = 5 m
L max = 2.5 m
x
2
4
y
3
C42
x + y = max 5,0 m per vers. "20"
x + y = max 3,0 m for vers. "25/55"
x + y = max 3,5 m per vers. "25"
x + y = max 3,5 m for vers. "30/55"
x + y = max 3,0 m per vers. "30-35"
collector code 8092803
Without
ø 87.5
diaphragm
L min = 1.3 m
L max = 5 m
7
6
2
3
8
C32
max 5,0 m per vers. "20"
max 3,0 m for vers. "25/55"
max 3,5 m per vers. "25"
max 3,5 m for vers. "30/55"
max 3,0 m per vers. "30-35"
1
C12
request in kit code 8084811. The diagrams
of fig. 5 illustrate some examples of diffe-
rent types of discharge modalities allowed
and the maximum lengths that can be rea-
ched.
2.7.2
Diaphragm for 60/100
coaxial duct (fig. 5/a)
The boiler is supplied with a diaphragm of
ø 87.5. Use the diaphragms according to
the indications of fig. 5/a.
ES
PT
ENG
Fig. 5
Fig. 5/a
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