PRESTIGE 42-50-75-100-120 Solo : A1007856 - 664Y6200 • G
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INSTALLATION
CALCULATION OF THE FLUE PIPE LENGTH
When connecting the flue pipes, make sure not to exceed the maximum length
recommended for the product, otherwise the system pressure might decrease.
The flue pipe dimensions can be calculated using the method shown on the right. Please refer to the
tables on the right indicating the equivalent length in meters of straight pipes, applied to each of the
connection components. Then compare the calculation result to the recommended maximum flue pipe
length for each type of Prestige model, as indicated below.
Tables of equivalent length for the various connection accessories and connection types:
The following tables are based on ACV equipment and cannot be applied as a rule.
Example of calculation in the case of a concentric flue pipe
:
This figure shows an example of connection proposed
by an installer for a Prestige 50 Solo with a 100/150
concentric flue connection.
The assembly is comprised of: 2 x 90° 6
meters of straight pipes + 2 x 45° elbows.
The installer can check that the connection complies
with the recommended value using the method below.
• Method :
a) Calculate the corresponding length in meters of
pipes for the flue pipe assembly:
(2 x 1.72) + (6 x 1) + (2 x 1.140) = 11.72 m
b) Compare the resulting value with the recommend-
ed length value (25 m).
The flue pipe length is within the recommended range.
L = equivalent length in
meters of straight flue
pipes (1 m straight
pipe).
1000 mm
1000 mm
2000 mm
2000 mm
L
PRESTIGE
Equivalent length for accessories
Prestige 42 - 50 - 75 - 100 - 120 Solo
Concentric flue pipe
Single wall connection
Ø 80/125
Ø 100/150
Ø 80
Ø 100
1 m straight pipe
1
1
1
1
90° elbow
1.43
1.72
2.16
3.6
45° elbow
0.81
1.14
0.91
2.23
Flex line
-
-
1.93
2.12
Maximum length of flue pipes (in m) (terminals incl.)
Concentric flue pipe
Single wall connec-
tion
Flex connection
Ø 60/100
Ø 80/125
Ø
100/150
Ø 80
Ø 100
Ø 80
Ø 100
P 42
—
10
25
10
35
5
17
P 50
—
10
25
10
35
5
17
P75
—
10
25
10
35
5
17
P 100
—
—
20
—
30
—
15
P 120
—
—
20
—
30
—
15
L
L
L
C33
C33
C13
L
L
L
C
33
C
33
Concentric connection
Parallel connection
The equivalent length for pipes equipped with a measuring unit is equal to a 1 meter straight
pipe
