82
EN
Split pipe system
The split pipe system is supplied with the combustion air inlet
diaphragm which is to be mounted, after the sections have been
eliminated according to the total load loss which is calculated
by summing the load losses of the inlet ducts to those of the
outlet ducts.
1
2
4
5
3
Fig. 15
KEY:
1
Split pipe system with take-off point
2
Inlet diaphragm
3
Air inlet
4
Smoke outlet
5
Take-off point for smoke analysis
Load loss accessory Ø 80 mm
Description
Code
Load loss (mm H
2
O)
Brava Slim 40 BF
Inlet
Outlet
90° curve MF
8077410
0,70
1,50
45° curve MF
8077411
0,60
1,00
Horizontal extension W. 1000
mm
8077309
0,40
0,65
Vertical extension W. 1000 mm
8077309
0,30
0,30
Wall terminal
8089501
0,25
2,00
Condensate recovery Tee
8093300
-
2,20
Roof outlet terminal (*)
8091200
4,00
0,40
(*) The losses of the roof outlet terminal at inlet include the
manifold code 8091400.
NOTE:
for the boiler to operate correctly it is necessary that a
minimum distance of 0.50 m of the duct is respected with a 90°
inlet curve.
Example: calculation of the load loss of a
Brava Slim 40 BF
boiler.
Accessories Ø 80
mm
Code
Quantity
Load loss (mm H
2
O)
Inlet
Outlet
Total
Extension W. 1000
mm (horizontal)
8077309
4
4 x
0,40
-
1,60
Extension W. 1000
mm (horizontal)
8077309
4
-
4 x 0,65
2,60
90° curve
8077410
2
2 x
0,70
-
1,40
90° curve
8077410
2
-
2 x 1,50
3,00
Wall terminal
8089501
2
0,25
2,00
2,25
TOTAL
10,85
(installation permitted since the total of the load loss of the
accessories used is less than 15 mmH
2
O).
With this total load loss, sections 1 to 8 (inclusive) must be
removed from the inlet diaphragm (2).
2
Fig. 16
No. of sections to be removed
Total load loss (mm H
2
O)
Brava Slim 40 BF
1 ÷ 2
0 ÷ 2,0
1 ÷ 4
2,0 ÷ 4,0
1 ÷ 5
4,0 ÷ 6,0
1 ÷ 6
6,0 ÷ 8,0
1 ÷ 7
8,0 ÷ 9,0
1 ÷ 8
9,0 ÷ 11,0
1 ÷ 10
11,0 ÷ 13,0
Entire diaphragm
13,0 ÷
15,0
(*)
(*) Maximum load loss permitted.
120
Ø 80
170
170
Ø 80
K
L
165
165
Fig. 17
Description
Brava Slim 40 BF
K (mm)
245
W (mm)
450
Summary of Contents for BRAVA SLIM 40 BF
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