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INSTALLATION MANUAL
Place the flue gas discharge system as follows:
Ø
Connect the pipe pieces or flexible SS discharge.
Ø
You should only install the appliance in a well ventilated room which complies with the applicable national, local
and constructional (installation) regulations, in order to guarantee sufficient air supply.
!Caution
- In case of a house with a mechanic exhaust system and/or an open kitchen with cooker hood, a permanent
ventilation hole is required in the area surrounding the appliance; for this application, please refer to the gas
installation regulations and local legislation.
5.9 Flue gas discharge /combustion air supply system at appliances with a closed
combustion
5.9.1 General
The appliance's type of discharge system is stated in Appendix 2, Table 2.
The appliance is connected to a combined flue gas discharge/combustion air supply system, hereafter 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 5.9.4).
!Caution
- Only use the concentric system supplied by DRU This system has been tested in combination with the
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.
5.9.2 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 5.9, 'Adjustment of the appliance' for the
method of working.
The concentric system with wall or roof terminal has to comply with the following conditions:
- First, a concentric pipe of minimum length should be connected vertically to the appliance, according to
Appendix 2, Table 4 or 5.
- Determine the permissibility of the required discharge.
When using a wall terminal the following applies:
- The total vertical pipe length, when using a wall terminal, may have a maximum length that you can find in
Appendix 2, Table 4. In that case, a 90º bend will be connected after the vertical part;
- The total horizontal pipe length, when using a wall terminal, may have a maximum length that you can find
in Appendix 2, Table 4 (without wall terminal; see Appendix 3, Fig. 5).
When using a roof terminal the following applies:
- The construction of the chosen system, when using a roof terminal, must be permissible according to
Appendix 2, Table 5 (See the method of working described below).
The working method below indicates how the permissibility is determined of a concentric system when using a
roof terminal.
1) Count the number of 45° and 90° bends required;
2) Count the total number of whole metres of horizontal pipe length;
3) Count the total number of metres of vertical and/or sloping pipe length (roof terminal excluded);
4) In the first 2 columns of Table 5, look for the number of bends required and the total horizontal pipe length;
5) In the top row of Table 5, look for the required total vertical and/or sloping pipe length;
6) If you end up in a box with a letter, the concentric system chosen by you is permissible;
7) Use Table 6 to determine how the appliance should be adjusted.
UK
