Baxi Luna 3 Comfort Notice D'installation Et D'entretien page 14

3.4. tWo pIpe sYsteM
This type of ducting allows to disengage exhaust flue gases both outside the building and into single flue ducts.
Comburant air may be drawn in at a different site from where the flue terminal is located.
The splitting kit consists of a flue duct adaptor (100/80) and of an air duct adaptor; the latter may be placed either on the
left or on the right of the flue terminal according to installation requirements.
For the air duct adaptor fit the screws and seals previously removed from the cap.
The restrictor must be removed in case you install separated flue and air duct terminals.
IMportant: All parts of the exhaust flue duct must be at least 1 in / 25.4 mm from any combustible materials or zero
mm to combustibles if mylar sleeve is used.
Intake air duct adaptor
flue duct adaptor
clamp
Fig. 10
The 90° bend allows to connect the boiler to flue-air ducting regardless of direction as it can be rotated by 360°. It can
moreover be used as a supplementary bend to be coupled with the duct or with a 45° bend.
Fig. 11
A 90° bend reduces the total duct length by 0.5 m / 1.64 ft.
A 45° bend reduces the total duct length by 0.25 m / 0.82 ft.
separated horizontal flue terminals installation options
IMportant: Ensure a minimum downward slope of 1 cm / 0.39 in toward the outside per each metre of duct length
In the event of installation of the condensate collection kit, the angle of the drain duct must be directed towards the
boiler.
InstructIons pertaInInG to tHe Installer 95.188.3 - GB
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