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INSTAllATION
Table "Standard values for flue gas line dimensions"
Boiler
Smooth-walled flue gas line
Number of 90° bends (flue gas + supply air)
Type
Flue gas dim. mm
Designation
Total pipe length in m (flue gas + supply air)
UltraGas
®
2
inside
DN
1
2
3
4
5
1)
(125)
155
130
24
23
22
21
(150)
155
18
17
16
15
(125)
155
150
47
47
46
45
(150)
155
45
45
45
44
(190)
155
43
42
40
38
(230)
155
20
20
19
18
(230)
155
175
44
43
43
42
(230)
155
200
45
44
43
43
(300)
252
45
44
43
43
(350)
252
44
43
43
42
(400)
252
250
44
43
42
41
(450)
252
43
42
41
40
(530)
302
44
43
42
41
(620)
302
43
42
41
40
(700)
302
42
41
40
39
(800)
302
300
45
44
43
43
(1000)
302
44
43
43
42
(1100)
302
350
47
46
45
44
(1300)
402
46
45
44
43
(1550)
402
45
44
43
43
•
The values in the table "Standard values for flue gas line dimensions" are standard values for reference.
An exact calculation for the flue gas line must be made on site.
•
For chimney systems above 25 m effective height, negative pressure in the chimney is to be expected in
some operating conditions. Therefore, we recommend an individual design of the chimney system and
checking the individual pressure conditions.
Standard values for the flue gas line dimensions can be
found in the following table.
Table with bases for calculation
• Calculation based on max. 1000 m above sea level.
• Installation room with supply air opening (room air de-
pendent operation)
• An individual calculation must be carried out for room
air-independent operation (accessories as option) or a
combustion air supply via a duct.
• Connecting line was calculated with max. 5 m.
The first 2 m of the flue gas line must be con
-
figured with the same dimension as the flue
gas connector, after which the size of the flue
gas system can be selected according to the
table below.
!
WARNING
Flue gas outlet for oversized flue gas lines.
-
For flue gas systems from third-party suppli
-
ers (air/flue gas line of version C63), a toler
-
ance of +1/-0.5% of the flue gas line nominal
diameter DN specified in the table must be
upheld for the connection points.
4.3.1 Standard values for flue gas line dimensions
Содержание 51-UltraGas 2 1000
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