Dru Metro 100 Tunnel Installationsanleitung Seite 7

M E T R O 1 00 - I N S TA L L AT I O N M A N UA L
G20/G25
Total number of
meters vertical
pipe length
0,5
1 - 4
1 - 4
* factory setting
6.5.2.2 P lacing concentric system with wall terminal
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 instance) a cove, it should be made with non combustible material all around it.
- Use heat-resistant insulation material when passing through combustible material;
- The rosette (mounting inner plate) of the wall terminal 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 insulation materials contain volatile components that will spread an unpleasant smell for a pro-
longed time; these are not suitable.
Place the concentric system as follows:
➠
Build the system up from (the connection stump of) the appliance.
➠
Connect the concentric pipe pieces and the bend.
➠
On each connection, apply a clip binding with silicon sealing ring.
➠
Use a self-tapping screw to fi x the clip binding to the pipe on locations that cannot be reached after installation.
➠
Apply suffi cient clamps, so that the weight of the pipes does not rest on the appliance.
➠
Determine the remaining length of the wall terminal;
➠
Make sure the wall terminal has the right dimensions.
!Caution - Make sure that the right insertion length is maintained;
- Place the wall terminal with the groove/folded seam at the top;
- Make sure the horizontal concentric pipe pieces are sloping towards the wall terminal, in order to prevent rain water
from entering.
➠
Mount the rosette (mounting inner plate); if necessary, on a heat resistant intermediate plate when passing through
combustible material.
➠
Attach the wa ll terminal from the outside with four screws in their respective holes.
6.5.3 Applica tion with roof terminal
6.5.3.1 Construction of concentric system with roof terminal
The concentric system with roof terminal has to comply with the following conditions:
- The construction of the chosen system has to be allowed. (See the procedure described below);
- First, a concentric pipe of at least 1 meter should be connected vertically to the appliance.
Depending on the construction of the concentric system, the appliance is set by placing the baffl e and/or removing
the air inlet guides.
In the following procedure you can see how the allowability of a concentric system can be determined and which
settings are needed.
➠
Determine the following data:
1) The number of bends required (no distinction is made between 45° and 90° bends);
2) The total number of meters of horizontal pipe length;
3) The total number of meters of vertical and/or sloping pipe length (roof terminal excluded).
With these data and Table 2 you will be able to determine whether the concentric system is allowed.
In Table 3 you can see which setting the appliance requires.
95900005_ML1 Install.indd 7 95900005_ML1 Install.indd 7
Table 1: Conditions for the adjustmen t of the appliance with a wall terminal
Total number of See fi gure
meters horizontal
pipe length (excluding
wall terminal)
0 - 2 4a
>0 - 3 4b
0 * 4c
Air inlet guides Baffl e
NO NO
NO NO
YES NO
Distance of
restriction
in mm
OPEN
OPEN
OPEN
7 GB
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