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English
PRONTO - INSTRUCTION FOR INSTALLATION
6.5.2 Application with wall duct
6.5.2.1 Construction of concentric system with
wall duct
The concentric system with wall duct has to comply
with the following conditions (see Fig. 2):
- First, a concentric pipe of at least 1 meter should be
connected vertically to the appliance;
- The total vertical pipe length can have a maximum
of 4 meters;
- On the vertical part a bend of 90° is connected;
- The total horizontal pipe length can have a maxi-
mum of 3 meters (wall duct excluded).
The construction of the concentric system allows
the following 2 configurations:
1) minimum 1 meter and maximum 4 meters of ver-
tical pipe length combined with a 90° bend and a
maximum 3 meters horizontal pipe length and a
wall duct (see Fig. 6).
When using this application, you must remove
the air inlet guide (see section 6.7). The baffle will
not be placed.
2)minimum 1 meter and maximum 4 meters of ver-
tical pipe length combined with a 90° bend and a
wall duct (i.e., no horizontal part, see Fig. 7).
When using the configuration, you will not have
to do anything: you do not have to remove the air
inlet guide or place the baffle.
6.5.2.2 Placing concentric system with wall
duct
Place the concentric system as follows:
Build the system up
Caution
-Maintain a distance of at least 50 mm between
the outside of the concentric system and the walls
and/or the ceiling. If the system is built in (for in-
stance) a cove, it should be made with incombusti-
ble material all around it.
- from (the connection stump of) the appliance.
- Use heat-resistant isolation material when pas-
sing through combustible material;
- The rosette (mounting inner plate) of the wall
duct is too small to seal the Ø 250 mm opening
when passing through combustible material.
That is why you should first apply a sufficiently
large heat-resistant intermediate plate to the wall.
Then, the rosette is mounted on the intermediate
plate.
!Caution
Some heat-resistant isolation materials contain volatile components that will spread an unpleasant smell for a pro-
longed time; these are not suitable.
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Build the system up from (the connection stump of) the appliance.
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Connect the (lacquered) concentric pipe pieces and the (lacquered) bend.
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On each connection, apply a (lacquered) clip binding with silicon sealing ring.
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Use a parker to x the clip binding to the pipe on locations that are unreachable after installation.
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Apply sucient clamps, so that the weight of the pipes does not only rest on the appliance.
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Determine the remaining length of the wall duct.
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Make sure the wall duct has the right dimensions.
Fig. 5
Fig. 6
Fig. 7
UK
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