32
Flue gas connection
We recommend the use of ELCO’s
comprehensive range of flue gas
components.
For further information, please see the
installation instructions:
- ELCO wall terminals
- ELCO roof terminals
- ELCO flue pipe components, both
individual pipes and concentric tubes.
Regulations about the construction
and installation of flue gas systems
are different from country to country.
It must be ensured that all national
regulations with regard to chimney
systems are observed.
Notes
The tables below give guidance on
the maximum lengths of air and flue
gas tubes that may be connected. If a
room sealed installation is being made
utilising separate air and flue
gas tubes, the lengths of both tubes
must be added together and not
exceed the relevant value given in the
tables.
The radius of any bend used in the flue
gas system must not exceed 87.5°.
Walls that are sensitive to heat
should be insulated.
Construct the flue system in such
way that no recirculation may take
place.
Installation
Connections
Air- / flue gas ducts for individual boilers
All boiler models have a parallel flue
connection.
It is not necessary to install a separate
condensate drain for the flue gas
system, since the condensate will be
flushed out via the boiler and into the
siphon. Please observe the following
recommendations:
- Only use corrosion-resistant
material
- The diameter must be calculated
and selected according to the
national regulations.
- The length of the flue gas system
must be kept as short as possible
(and must not exceed the
maximum permitted length, see the
documentation for planners)
- Horizontal flue gas tubes must have
an inclination of at least 3° back
towards the boiler.
Air supply connection
If required, a separate room sealed
air supply tube may be connected
via the inclusion of the optional air
supply connector fitting. The diameter
must be calculated in conformity with
national regulations and in combination
with the flue gas gas system. The
overall resistance of the air supply
and flue gas tubes may not exceed
the maximum supply pressure of the
Fan at any time. (Also see the Chapter
“Technical data”)
Dimensioning (reference value)
Required minimum (flue enclosure) shaft cross-section
Diameter flue duct
Square shafts
Round shafts
100 mm
140 x 140 mm
160 mm
Ø tubes (open or parallel tubes
room sealed installation)
Maximum length in metres
Changes of direction
0
2
3
4
60
Ø100 mm
82
78
76
74
70
60
56
54
52
100
34
30
28
26
120
20
16
14
12
140
16
12
10
8
170
Ø130 mm
35
30
27
25
200
30
25
22
20
Ø tubes (concentric room sealed
installations)
Maximum length in metres
Changes of direction
0
2
3
4
60
Ø100/150 mm
34
30
28
26
70
23
19
17
15
100
13
9
7
5
120
10
6
4
2
140
8
5
3
1
Summary of Contents for TRIGON L PLUS
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