WANDERS Norma Mode D'emploi Et Instructions D'installation page 24

Placing of the concentric channel
system
The concentric channel system consists of three parts:
the channels itself, the transit through the roof or through
a wall and the outflow.
Instructions for placing the outflow
The outflow of the pipe system can be placed on top of
the roof or against the side wall of the house.
Roof outlet
When placing the outflow on top of the roof, make sure
that there is a distance of at least 50 cm between the
outflow and the edges of the roof, with the exception of
a possible existing ridge. You must also take the place
of the outflow into account in relation to the existing
ventilation openings, movable windows and combustion
air supply provisions. Please consult the national and
local requirements.
Wall outlet
When placing the outflow into the side wall, make sure
that there is distance of at least 50 cm between the
outflow and the corners of the building, eaves, gutters,
balconies and etceteras. You need not have this distance
when the outflow runs through to at least the front of the
overhanging part.
You must also take the place of the outflow into account
in relation to the existing ventilation openings, movable
windows and combustion air supply provisions. Please
consult the national and local requirements.
4
Placing possibilities of the pipe system
The total length of the pipe system must never be more
than 10 metres excluding the passage through the wall
and the outflow. A 90° square angle counts as a length of
 metres. A 45° turn counts as a length of 1 metre.
For the combined flue tube and combustion air supply
you must apply one of the following placing possibilities
of the WANDERS concentric pipe systems: with wall
duct, with roof duct or with roof duct with bend.
Placing possibilities of the pipe system
Make your choice from the installation possibilities
shown above. Place the first meter of the concentric
pipe on the counterpart on the appliance. You will know
that you placed it properly if you can see the blue rubber
seal ring when looking from above. Keep a distance of at
least 5 cm between the inner side of the concentric pipe
and the wall or the ceiling.
Pay special attention to proper installing when, due to
circumstances, a part of the double-walled pipe system
must be built in.
Exterior wall duct
• Always allow one metre vertical before passing
through the outer wall.
• Determine the location of the gas unit and the exterior
wall duct.
• Make an opening of Ø 155 mm for the wall duct.
• Connect the wall duct with a curve to the mouth of the
appliance. Push them firmly together and place the
clip bindings. The blue rubber ring ensures sufficient