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Separate duct kit Ø80
1
Air inlet stopper
2
Load loss accessory Ø 80 mm
Description
Code
GO 18 BF
Inlet
Outlet
90° curve MF 8077410
0,28
45° curve MF 8077411
0,24
Horizontal
extension W.
8077309
0,16
1000 mm
Vertical
extension W.
8077309
0,16
1000 mm
Wall
8089501
0,12
terminal
Condensate
8093300
-
recovery Tee
Roof outlet
8091200
1,28
terminal (*)
(*) The losses of the roof outlet terminal at inlet include the
manifold code 8091400.
for the boiler to operate correctly it is necessary that a
NOTE:
minimum distance of 0.50 m of the duct is respected with a 90°
inlet curve.
Example: calculation of the load loss of a GO 25 BF boiler.
Accessories Ø 80
Code
Quantity
mm
Extension W. 1000
8077309
mm (horizontal)
Extension W. 1000
8077309
mm (horizontal)
90° curve
8077410
90° curve
8077410
Wall terminal
8089501
TOTAL
2
Fig. 30
Load loss (mm H
O)
2
GO 25 BF
GO 30.BF
Inlet
Outlet
Inlet
Outlet
0,32
0,35
0,40
0,40
0,45
0,28
0,30
0,35
0,35
0,40
0,24
0,20
0,30
0,22
0,35
0,08
0,20
0,10
0,22
0,12
0,4
0,15
0,50
0,18
0,55
0,64
-
0,80
-
0,90
0,08
1,60
0,10
1,80
0,12
Load loss (mm H
O)
2
Inlet
Outlet
Total
7
7 x 0,2
-
1,40
7
-
7 x 0,3
2,10
2
2 x 0,35
-
0,70
2
-
2 x 0,4
0,80
2
0,15
0,5
0,65
5,65
(installation permitted since the total of the load loss of the
accessories used is less than 9,0 mmH
With this total load loss, sections 1 to 6 (inclusive) must be
removed from the inlet diaphragm (2).
2
No. of
Total load loss (mm H
sections to be
GO 18 BF
removed
None
-
1
0 ÷ 1,0
1 ÷ 2
-
1 ÷ 3
1,0 ÷ 2,0
1 ÷ 4
2,0 ÷ 3,0
1 ÷ 5
-
1 ÷ 6
3,0 ÷ 4,0
1 ÷ 7
-
1 ÷ 8
4,0 ÷ 5,0
1 ÷ 9
-
1 ÷ 10
5,0 ÷ 6,0
Entire
6,0 ÷
7,0
(*)
diaphragm
(*) Maximum load loss permitted.
420
Ø 80
Description
GO 18 BF
A (mm)
B (mm)
O).
2
Fig. 31
O)
2
GO 25 BF
GO 30.BF
0 ÷ 2,0
-
2,0 ÷ 3,0
0 ÷ 1,0
3,0 ÷ 4,0
-
-
1,0 ÷ 2,0
4,0 ÷ 5,0
2,0 ÷ 3,0
-
3,0 ÷ 4,0
5,0 ÷ 6,0
-
6,0 ÷ 7,0
4,0 ÷ 5,0
-
5,0 ÷ 6,0
7,0 ÷ 8,0
6,0 ÷ 7,0
-
7,0 ÷ 8,0
8.0 -
9.0
(*)
8.0 -
9.0
(*)
210
80
Fig. 32
GO 25 BF
GO 30.BF
120
165
65
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