A
C
Fig. 10
5.0Site Requirements
5.5Flue
1.The following guidelines indicate the general requirements for installation of flues.
For GB recommendations are given in BS 5440 Part 1. For IE recommendations are given in the current edition of I.S. 813 “Domestic Gas Installations”.
B
2.Only one of the two available MULTIIFIT vertical concentric Flexi Flue kits approved for use with the
boiler can be used (10mkit 720101701 or 12.5m kit 720102001). Any proprietary flue systems, terminals, adaptors etc. MUSTNOTBEUSED.
3. The available flue kits are intended for installation within an existing chimney. This should be clean and sound, and any other previously installed flue components (liners, dampers etc.) removed.
4.The flue must have a minimum vertical height of 3m and have no bends greater than 45°.
NO HORIZONTAL RUNS ARE PERMITTED !
5.The terminal must be sited so that free passage of air across it can occur at all times.
6.It must also be a MINIMUM of 150mm from any other terminals or obstructions (A). When adjacent to windows or openings on pitched or flat roofs it must be at least 600mm away (B). A minimum dimension of 2000mm must be maintained when below windows or openings in pitched roofs (C) (Fig. 10).
16© Baxi Heating UK Ltd 2009
