Baxi Luna HT 1.850 Gebrauchsanleitung Seite 93

IMportant: Ensure a minimum downward slope of 1 cm toward the outside per each metre of duct length
Make sure that the ex­haust and intake ducts are securely fix­ed to the walls.
IMportant: if fitting a single ex­haust flue duct, ensure it is adequately insulated (e.g.: with glass wool) whe-
rever the duct passes through building walls.
For detailed instructions concerning the installation of fittings refer to the technical data accompanying the
fittings.
12.1 fan rpm upDatIng DepenD of pIpes lenght (e.g. fIgure 7)
To ensure the correct rated heat input to the max­imum and minimum heat input, it is necessary to update the
speed (rpm) of the fan, it depends on the lenght of the pipes (par. 12), in accordance with the installation of
flue and air pipes as indicated in the tables below. The factory-set value is referred to the minimum length of
flue pipe (0÷2 m for concentric, 0÷6 m for twin). To carry such updating, changing the speed of the fan (rpm)
at the max­imum and minimum heat input, refer to par. 15.
InstructIons pertaInInG to the InstaLLer
separated horizontal flue terminals installation options
L max = 15 m
separated vertical flue terminals installation options
L max = 15 m
(L1 + L2) max = 20 m
The max­imum length of the
suction duct must be 7 metres.
L max = 14 m
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912.198.1 - GB