Vaillant ecoTEC plus 412 - System Conditions; Route of the Air;Flue Pipe in Buildings; Location of the Terminal; Disposing of Condensate

10 Air/flue pipe installation manual 8000026412_01
4 System conditions
4.1 Route of the air/flue pipe in buildings
The air/flue pipe should be as short as possible and run as
straight as possible.
▶ Do not install several elbows or inspection elements im-
mediately after each other.
As a result of standards relating to the hygiene of potable
water, potable water lines must be protected against imper-
missible heating.
▶ Lay the air/flue pipe separately from the potable water
lines.
It must be possible to check and, if required, clean the entire
length of the flue gas route.
It should be possible to remove the air/flue pipe again with a
minimal amount of effort (preferably no time-consuming mor-
tising work in the living area, but screwed-in casing instead).
If they are arranged in shafts, they are usually easy to re-
move.
4.2 Location of the terminal
The location of the flue system terminal must comply with
the relevant applicable international, national and/or local
regulations.
▶ Align the terminal of the flue system in such a way that
ensures a secure outward flow and distribution of the
flue gases and prevents these gases from re-entering the
building through openings (windows, supply air openings
and balconies).
▶ Observe the existing regulations with regard to the clear-
ances to windows and ventilation openings.
4.3 Disposing of condensate
Local regulations may stipulate the minimum quality of any
condensate that may enter the public waste-water system. If
required, a condensate neutraliser must be used.
▶ When disposing of the condensate into the public waste-
water system, observe the local regulations.
▶ Only use corrosion-resistant piping material for removing
condensate discharge.
4.4 Maximum pipe lengths
4.4.1 Maximum pipe length for horizontal wall duct
A
A Maximum pipe length
4.4.2 Maximum pipe length of the horizontal wall
duct with terminal set (60/100 mm diameter
only)
A
B
B
AA
B
A Maximum concentric
pipe length
B Outdoor pipe length
4.4.3 Maximum pipe length for vertical roof duct
A
A Maximum concentric
pipe length