IT
ES
2.8
INSTALLATION SEPARATE
PIPES ("BF TS" version)
PT
When installing the pipes, follow closely the
requirements of the current standards, as
GB
well as the following practical pointers:
GR
– With direct intake from outside, when
the pipe is longer than 1 m, you are
recommended to insulate the piping so
RO
as to prevent formation of dew on the
outside of the piping during particularly
RUS
hard periods of the year.
– With the outlet pipe outside the building
or in cold indoor environments, insulation
is necessary to prevent burner failure in
starting.
In such cases, provide for a condensate-
collector system on the piping.
– If a segment of the flue passes through a
flammable wall, this segment must be
insulated with a glass wool pipe insulator
30 mm t hick, wit h a density of 50
kg/m
3
.
The maximum overall length of the intake
and exhaust ducts depends on the head
losses of the single fittings installed and
must not be greater than 7.6 mm H
vers. "25 BF TS" - 9 mm H
TS" - 12 mm H
O vers. "35 BF TS".
2
For head losses in the fittings, refer to Table
1 and example fig. 6/a.
2
3
6
da n° 1 a 10
without diaphragm
76
TABLE 1
Accessories ø 80
90° curve MF
45° curve MF
Extension L. 1000 (horizontal)
Extension L. 1000 (vertical)
Outlet terminal
Intake terminal
Manifold
Roof outlet terminal L. 1 390
Condensation collection T
O
2.8. 1
2
O vers. "30 BF
2
The separate flue kit code 8089904 is
supplied with an intake diaphragm which
must be used as shown in fig. 8/a, depen-
1
4
N° segments
to remove
25 BF TS
none
0 ÷ 0.8
n° 1
0.8 ÷ 1.6
n° 1 e 2
1.6 ÷ 2.4
da n° 1 a 3
2.4 ÷ 3. 1
da n° 1 a 4
3. 1 ÷ 3.8
da n° 1 a 5
3.8 ÷ 4.5
da n° 1 a 6
4.5 ÷ 5.2
da n° 1 a 7
5.2 ÷ 5.8
da n° 1 a 8
5.8 ÷ 6.4
da n° 1 a 9
6.4 ÷ 7.0
-
7.0 ÷ 7.6
Intake
0.30
0.20
0.20
0.30
0. 1 0
0.20
Example of allowable installation "25 BF TS" calculation in that the sum of the head losses
of the single fittings is less than 7.6 mm H
7 meter horizontal pipe ø 80 x 0.20
7 meter vertical pipe ø 80 x 0.30
n° 2 90° elbows ø 80 x 0.30
n° 2 90° elbows ø 80 x 0.40
n° 1 terminal ø 80
Total head loss
With this total head loss, remove the segments from n. 1 to n. 7 from diaphragm in the intake
pipe.
Separate flue kit (fig. 8)
KEY
1 ø125/95 sponge seal
2 Fixing screw
3 Flue outlet flange
4 Inlet air diaphragm
6 Manifold with intakes
BF TS
25
30
K mm
180
205
Total load loss mm H
O
2
30 BF TS
35 BF TS
-
-
-
-
0 ÷ 1.0
0 ÷ 1.0
1.0 ÷ 2.0
1.0 ÷ 2.0
2.0 ÷ 3.0
2.0 ÷ 3.0
3.0 ÷ 4.0
3.0 ÷ 4.0
4.0 ÷ 4.8
4.0 ÷ 5.0
4.8 ÷ 5.6
5.0 ÷ 6.0
5.6 ÷ 6.4
6.0 ÷ 7.0
6.4 ÷ 7.2
7.0 ÷ 8.0
7.2 ÷ 8.0
8.0 ÷ 10.0
8.0 ÷ 9.0
10.0 ÷ 12.0
Load loss (mm H
"25 BF TS"
Outlet
Roof out. Intake
Release
0.40
–
0.30 0.45/0.50
0.30
–
0.20 0.35/0.40
0.30
–
0.20 0.35/0.40
0.20
–
0.30 0.25/0.30
–
0.30
–
–
–
–
–
0.30
–
–
0,50
–
1.00
–
O:
2
Intake
1.40
–
0.60
–
0. 1 0
2. 1 0
+
ding on the maximum load loss permitted
in both flues.
To use the air intake in this type of outlet
you must perform the following operations
(fig. 9):
35
205
O)
2
"30/35 BF TS"
Outlet
Roof out. Intake
–
–
–
–
–
0.35/0.40
–
0. 1 0
–
–
–
–
–
–
0.55/0.60
–
1.05/1. 1 0
–
Outlet
–
2. 1 0
–
0.80
0.30
3.20 = 5.3 mm H
O
2
Fig. 6/a
K
100
Fig. 8
Fig. 8/a