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INSTALLATION MANUAL
The concentric system with wall terminal has to comply with the following conditions:
- First, a concentric pipe of at least 1 meter should be connected vertically to the appliance;
- The total vertical pipe length may have a maximum of 4 meters;
- A fter the vertical part, a 90º bend (round system) or a squared adapter (rectangular system) is connected;
- When using a minimum of 1 meter up to a maximum of 4 meters of vertical pipe length, the total
horizontal pipe length can have a maximum of 5 meters (excluding wall terminal,
see Appendix 3, fig. 3b and fig. 3c).
Depending on the construction of the concentric system, the appliance must receive further settings by
removing the air inlet guide; see Table 1 for determining the conditions and section 5.7, Adjusting the appliance,
for the method.
5.4.2.2 Placing concentric system with wall terminal
!Caution
- Maintain a distance of at least 50 mm between the outside of the concentric system and the walls, when
using a round system;
- Maintain a distance of at least 23 mm between the outside of the concentric system and the walls, when
using a rectangular system; this distance is fixed due to the construction of the rectangular system;
- Maintain a distance of at least 50 mm between the outside of the concentric system and the ceiling;
- Use non combustible material for building the concentric in, for instance, a cove;
- 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 first apply a sufficiently large heat-resistant
intermediate plate to the wall. Then, the rosette is mounted on the intermediate plate.
!Caution
- When using rectangular pipes it is only possible to end in the wall from which the appliance is suspended
(there is no bend available for the concentric system);
- When the pipes end at right angles in the appliance, you can start with rectangular pipes, but you must
change over to the round system;
- Some heat-resistant insulation materials contain volatile components that will spread an unpleasant smell
for a prolonged time; these are not suitable.
Place the concentric system as follows:
Ø
Build the system up from (the flue spigot of) the appliance.
Ø
Connect the concentric pipe pieces, the adapter and, if necessary, the bend.
Ø
In case of the rectangular system, you must first attach a coupling piece on each connection, as described below
(see Appendix 3, fig. 3d):
!Caution
In case of rectangular pipe pieces, the internal pipe is longer at the bottom than the external pipe; the internal
pipe glides in the internal pipe of the flue spigot or the previous pipe piece;
- For reducing a rectangular pipe piece, unscrew the internal pipe from the external pipe;
- Make the internal pipe and external pipe equally long at the top end;
- Retighten the internal pipe;
- Place the coupling piece plus seal on the reduced pipe piece and fix it at both front sides by means of 2
self-drilling screws.
- Place a red seal on the flue spigot of the appliance;
- Then, place the coupling piece on the flue spigot;
- Secure the coupling peace at both front sides using 2 self-tapping screws;
- Place a red seal on the coupling piece;
- Then place a rectangular pipe piece or an adapter to round;
- Secure the rectangular pipe piece or adapter at both front sides using 2 self-tapping screws;
- At each next rectangular pipe piece or at the adapter, place the spacer brackets on the pipe at the same
height as the coupling piece;
- Secure the spacer brackets to the wall, so that the weight of the pipes does not rest on the appliance.
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