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b
In the case of use of non-original flue gas exhaust and air intake
ducts, the use of certified ducts compliant with the appliance to which
they are connected must still be guaranteed, with a temperature class
≥120°C and resistant to condensation
b
To ensure greater installation safety, fix the pipes to the wall
(wall or ceiling) using special fixing brackets to be positioned
at each joint, at a distance such as not to exceed the length of
each individual extension and immediately before and after each
change of direction (bend).
b
The maximum lengths of the pipes refer to the flue accessories
available in the catalogue.
b
It is compulsory to use specific pipes.
b
The non insulated flue gas outlet pipes are potential sources of
danger.
b
The use of a longer pipe causes a loss of output of the boiler.
b
The exhaust pipes can face in the direction most suited to the
installation requirements.
b
As envisaged by current legislation, the boiler is designed to take
in and dispose of flue gas condensate and/or meteoric water con-
densate deriving from the flue gas discharge system using its own
siphon.
b
If a condensate relaunch pump is installed, check the technical
data (provided by the manufacturer) regarding output, to ensure
it operates correctly.
- Position the discharge pipe so that the connection sits fully up against
the flue gases turret of the boiler.
- After positioning it, make sure the 4 notches (A) slip into the groove
(B).
- Fully tighten the screws (C) that hold the two flange locking terminals,
so the bend itself is restrained held in place.
b
For fumes exhaust lengths, please refer to section 8.9 at page
94.
B23P-B53P Ø60-100
Ø80-80
B
B
A
C
b
If the Ø 60-100 to Ø 80-80 splitter kit is used instead of the twin
pipe system, there is a loss in the maximum lengths as shown in
the table.
Loss of length (m)
Twin pipes with Ø 80 pipework (Ø50 - Ø60 - Ø80)
Thanks to the boiler characteristics, a Ø80 flue gas exhaust pipe can be
connected to the Ø50 - Ø60 - Ø80 piping ranges.
b
For the pipe, you are advised to make a project calculation in order
to respect the relevant regulations in force.
The table shows the standard configurations allowed.
Air suction
Flue gas
Reduction from Ø80 to Ø50 from Ø80 to Ø60
discharge
Flue base bend 90°, Ø50 or Ø60 or Ø80
For ducting pipe lengths see table
Ø80-125
B
B
A
B
C
Ø 50
Ø 60
Ø 80
5,5 for flue gases pipe
0,5
1,2
7,5 for air pipe
1 bend 90° Ø 80
4.5m pipe Ø80
1 bend 90° Ø 80
4.5m pipe Ø80
The boilers are factory set to:
CH rpm
5.800
6.400
Should greater lengths be required, compensate the pressure drop with
an increase in the r.p.m.of the fan, as shown in the adjustments table,
to provide the rated heat input, referring to paragraph "4.9 Adjustments".
b
The minimum calibration should not be modified.
b
In case of new fan speed adjustment, carry out the CO
procedure as indicated in paragraph "4.8 Combustion analysis".
Adjustment tables INSIDE CHIMNEY PIPES
Fan rotations rpm
Pipes Ø50
CH
DHW
5.800
5.800
6
5.900
5.900
12 *
6.000
6.000
16 *
6.100
6.100
19 *
6.200
6.200
23 *
6.300
6.300
27 *
6.400
6.400
29 *
6.500
6.500
32 *
6.400
7.700
4
6.600
7.900
8 *
6.700
8.000
11 *
6.800
8.100
14 *
6.900
8.200
17 *
7.000
8.300
19 *
7.100
8.400
22 *
7.200
8.500
25 *
(*) Maximum length that can be installed ONLY with class H1 discharge pipes.
Fan rotations rpm
Pipes Ø50
CH
DHW
5.800
5.800
1
5.900
5.900
7 *
6.000
6.000
11 *
6.100
6.100
14 *
6.200
6.200
18 *
6.300
6.300
22 *
6.400
6.400
24 *
6.500
6.500
27 *
6.400
7.700
0
6.600
7.900
4 *
6.700
8.000
7 *
6.800
8.100
10 *
6.900
8.200
13 *
7.000
8.300
15 *
7.100
8.400
18 *
7.200
8.500
21 *
(*)
Maximum length that can be installed ONLY with class H1 discharge pipes.
The Ø50 or Ø60 or Ø80 configurations contain Lab test data. In the event
of installations that differ from the indications in the "standard configu-
rations" and "adjustments" tables, refer to the equivalent linear lengths
below.
b
In any case, the maximum lengths declared in the booklet are gua-
ranteed, and it is essential not to exceed them.
COMPONENT
Bend 45°
Bend 90°
Extension 0.5m
Extension 1.0m
Extension 2.0m
3.9
Installation on collective flues in positive
pressure
The collective flue is a flue gas exhaust system suitable for collecting
and expelling the combustion products of several appliances installed on
several floors of a building.
25
DHW rpm
max length pipes (m)
Ø50
Ø60
6
19
5.800
1
9
4
16
7.700
0
7
twin flue pipe
Pipes Ø60
Pipes Ø80
∆P at boiler outlet
Maximum length (m)
19
95
33 *
165 *
39 *
195 *
46 *
230 *
53 *
265 *
61 *
305 *
67 *
335 *
73 *
365 *
16
80
26 *
130 *
32 *
160 *
38 *
190 *
44 *
220 *
50 *
250 *
56 *
280 *
62 *
310 *
compact twin flue pipe
Pipes Ø60
Pipes Ø80
∆P at boiler outlet
Maximum length (m)
9
45
23 *
115 *
29 *
145 *
36 *
180 *
43 *
215 *
51 *
255 *
57 *
285 *
63 *
315 *
7
35 *
17 *
85 *
23 *
115 *
29 *
145 *
35 *
175 *
41 *
205 *
47 *
235 *
53 *
265 *
Linear equivalent in metres Ø80 (m)
Ø 50
Ø 60
12,3
19,6
6,1
13,5
29,5
EN
Ø80
95
45
80
35
check
2
(Pa)
120
189
230
273
315
362
398
434
180
260
300
342
383
431
465
500
(Pa)
120
189
230
273
315
362
398
434
190
256
300
340
380
417
458
500
5
8
2,5
5,5
12
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