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IN S T A LLA TION M A NU A L
•
When the appliance is installed in a house with a mechanical air extraction system and/or an open kitchen
!Caution
with cooker hood, you will need a permanent ventilation hole in the room where the appliance is installed;
please observe the gas installation regulations and the local regulations for dimensions and other required
provisions.
•
No ventilation of the chimney breast is required in case of an existing chimney with a masonry fireplace that
is sufficiently able to absorb the heat. Therefore the ventilation hole in the chimney breast does not apply to
the class 1 chimney in the UK.
5.7.2 Connection of flue gas discharge system
For connection to an existing chimney, a flexible stainless steel discharge pipe is required over the complete
length for the discharge of the flue gases, unless indicated otherwise. A draught increasing hood is recommended
here.
•
Prevent dirt from an existing chimney from entering the flue gas discharge.
!Caution
•
Prevent false draught by carefully closing the space between the existing chimney and the discharge
material.
•
Bends of more than 45 degrees are not allowed in the flue gas discharge system, unless indicated otherwise.
•
Maintain a distance of at least 50 mm between the outside of the concentric system and the walls and/or
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.
•
Use a flue gas discharge system with the correct diameter, and which is provided with the CE mark.
Some heat-resistant insulation materials contain volatile components that will spread an unpleasant smell during
!Caution
a longer period; these are not suitable.
Place the flue gas discharge system as follows:
Ø
Connect the pipe pieces or flexible SS discharge.
•
Make sure that the right insertion length is maintained.
!Caution
•
Secure the connections on locations that are impossible to reach after installation by means of self-tapping
screws.
5.8 Flue gas discharge / combustion air supply system in appliances with closed
combustion
5.8.1 General
The appliance's type of discharge system is stated in Appendix 2, Table 2.
The appliance will be connected to a combined flue gas discharge / combustion air supply system, hereafter to be
referred to as the concentric system.
The passage to the outside can be made with both a wall terminal and roof terminal. If necessary, you can also use
an existing chimney (see section 5.8.4).
•
Only use the concentric system supplied by DRU This system has been tested in combination with the
!Caution
appliance. DRU cannot guarantee a proper and safe operation of other systems and does not accept any
responsibility or liability for this;
•
For connecting to an existing chimney you should only use the chimney kit supplied by DRU.
The concentric system is constructed from (the flue spigot of) the appliance.
If, due to constructional circumstances, the concentric system is placed first, it is possible to connect the appliance
by means of a telescopic pipe piece.
5.8.2 Construction of the concentric system
Depending on the construction of the concentric system, the appliance will have to be further adjusted with
possibly a restrictor slide or air inlet guide.
See Tables 4 and 6 for determining the correct adjustment and section 'Adjustment of the appliance' for the
method of working.
(if a class 1 chimney is not applicable)
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