48
9.13.3 E
XAMPLE
C:
S
INGLE FLUE GAS OUTLET
.
A
IR SUPPLY FROM BOILER ROOM
Calculation example with given lengths: checking resistance
Boiler type:
S-CBX 105
FL
U
E
G
A
S
Diameter: 100 mm
Number
Pa
Pa total
Straight tube m¹
total
13
3.3
42.9
Bend
90°
2
12.1
24.2
Bend
45°
2
7.5
15.0
Flue outlet
zeta = 1.0
1
12.8
12.8
Total resistance flue gas:
94.9
The total resistance is less than 200 Pa.
This flue gas / air supply system is functional.
Example C (B23, B23P)
Boiler Type
→
S-CBX
85
S-CBX
105
S-CBX
125
S-CBX
155
Diameter air pipe
[mm]
100
100
100
150
Diameter flue pipe
[mm]
100
100
100
150
Diam. roof terminal
[mm]
100
100
100
150
Maximum pipe length [m]
includes: 2 bends 90°
2 bends 45°flue outlet zeta = 1.0
49.3
29.7
14.3
119.8
Summary of Contents for S-CBX 105
Page 2: ......
Page 40: ...40 9 10 Flue Terminal Positioning ...
Page 42: ...42 9 11 1 FIGURE 12 LINE G ...
Page 55: ...55 11 5 Ladder Logic Diagram ...
Page 56: ...56 11 6 Electrical schematics ...
Page 57: ...57 ...
Page 137: ......