Publicidad
Idiomas disponibles
Idiomas disponibles
discharge pipes, is determined by the loss
of charge of the single accessories inserted
and must not result as more than 9 .0 mm
H
O in version "25 BF" and 9 .5 mm H
2
version "30 BF" .
For the loss of charge of the accessories,
refer to Table 1 and to the example given
in fig . 7 .
2 .8 .1
Air/combustion products
divider (fig . 8 - fig . 8/a)
The
air/combustion
products
cod . 8093020 (fig . 8) is supplied with the
aspiration diaphragm that must be enga-
ged, depending on the maximum head loss
accepted in both ducts, as indicated in fig .
8/a .
2 .8 .2
Outlet systems
(fig . 9)
The diagrams in fig . 9 illustrate a number
of examples of different types of separate
outlets .
2 .9
FORCED EXHAUST
TYPE B22P-B52P (fig . 10)
74
TABLE 1
Accessories ø 80
O in
2
90° elbow MF
45° elbow MF
Extension L . 1000 (horizontal)
Extension L . 1000 (vertical)
Wall terminal
T-shaped condensation collector
Roof exit terminal*
* The loss of the roof exit terminal in aspiration concludes the collector code 8091400
divider
Calculation example of the head loss of a "25 BF" vers . boiler (installation allowed as the sum
of the head losses of the accessories used is less than 9 .0 mmH
7 meter horizontal pipe ø 80 x 0 .20
7 meter horizontal pipe ø 80 x 0 .30
No . 2 90° elbows ø 80 x 0 .35
No . 2 90° elbows ø 80 x 0 .40
No . 1 wall terminal ø 80
Total head loss
With this total head loss, remove the segments from No . 1 to No . 6 from diaphragm in the intake pipe .
L
K
120
Load loss (mmH
25 BF
Intake
Outlet
Intake
0 . 3 5
0 . 4 0
0 . 4 5
0 . 3 0
0 . 3 5
0 . 4 0
0 . 2 0
0 . 3 0
0 . 2 5
0 . 2 0
0 . 1 0
0 . 2 5
0 . 1 5
0 . 5 0
0 . 2 0
---
0 . 8 0
1 . 6 0
0 . 1 0
2 . 0 0
O):
2
Intake
1 .40
–
0 .70
–
0 .15
2 .25
+
3
2
1
KEY
1 Divider with vent
2 Inlet air diaphragm
3 Air intake bend
4 Elbow product discharge
25 BF
30
BF
K mm
203
221
O)
2
30 BF
Outlet
0 . 5 0
0 . 4 5
0 . 3 5
0 . 1 5
0 . 8 0
---
1 . 0 0
0 . 2 0
Outlet
–
2 .10
–
0 .80
0 .50
3 .40 = 5 .65 mmH
O
2
Fig . 7
4
Fig . 8
Publicidad
