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6 Connecting the flue
6.1 Flue pipe connections
- The horizontal sections on the flue gas side will be constructed with
a gradient to the boiler of 3 %.
- Type C appliances can only be installed with the systems
mentioned in these technical instructions (particularly concentric
pipes, terminal connection parts).
- As connections of type B
conduits are pressurised, they must be either installed outside or
in a ventilated brick sheath.
25/01/2011 - 300014883-001-K
chimney conduits and type C
23
53
Comply with the installation instructions and the information on the
authorised lengths of the flue gas pipes.
See chapter 6.1.2
Remove the anti-dust cap.
Mount the flue gas pipe or the fresh air/flue gas discharge
system in compliance with the assembly instructions.
Check the seal.
- Static test overpressure: 1000 Pa
- Maximum leak rate: 50 l/hm
the flue gas pipe
AØ80 = 0.25 m
On concentric flue gas discharge systems (forced flue), the C0
level in the annular space in the measurement piping can also
be checked. The flue gas discharge system is considered leak-
proof if the measured CO
Gas 110 Eco 115 / 65
2
depending on the internal surface of
2
2
/m, AØ100 = 0.31 m
/m
level is lower than 0.2%.
2
2
33
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