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English
P R O N T O
-
I N S T R U C T I O N
F O R
I N S TA L L AT I O N
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 confi gurations:
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 baffl e 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 confi guration, you will not have
to do anything: you do not have to remove the air
inlet guide or place the baffl e.
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 fi rst apply a suffi ciently
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.
➠
Build the system up from (the connection stump of) the appliance.
➠
Connect the (lacquered) concentric pipe pieces and the (lacquered) bend.
➠
On each connection, apply a (lacquered) clip binding with silicon sealing ring.
➠
Use a parker to fi x the clip binding to the pipe on locations that are unreachable after installation.
➠
Apply suffi
cient clamps, so that the weight of the pipes does not only rest on the appliance.
➠
Determine the remaining length of the wall duct.
➠
Make sure the wall duct has the right dimensions.
Fig. 5
Fig. 6
Fig. 7
U K
95901302UK Install_G20.indd 7
95901302UK Install_G20.indd 7
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2-2-10 14:28