Separated Vertical Flue Terminals Installation Options; Split Flue Air Control Adjustment - Baxi Luna 3 Comfort Series Installation And Servicing Instructions

The maximum length of the suction duct must
be 10 m / 32.80 ft.
If the flue duct exceeds 6 m / 19.68 ft, the
condensate collection kit (supplied as an
accessory) must be fitted close to the boiler.
l max = 8 m / 6.4 ft
Fig. 13

separated vertical flue terminals installation options

Important:
if fitting a single exhaust
flue duct, ensure it is adequately insu-
lated (e.g.: with glass wool) wherever
the duct passes through building
walls.
For detailed instructions concerning
the installation of fittings refer to the
technical data accompanying the
fittings.

split flue air control adjustment

The adjustment of this control is
required to optimise performance and
combustion parameters. The air suction
coupling which may be mounted on
the left or right of the flue duct can be
rotated to adjust excess air according
to the total length of the flue and intake
ducts for the combustion air.
Turn this control clockwise to decrease excess combustion air and anticlockwise to increase it.
To improve optimisation a combustion product analyser can be used to measure the CO
heat output, gradually adjusting air to obtain the CO
To properly install this device, also refer to the technical data accompanying the fitting.
InstructIons pertaInInG to tHe Installer
Fig. 1
Fig. a
Fig. c
l max = 1 m / 39.36 ft
Fig. 14
reading in the table below, if the analysis shows a lower value.
2
15
(l1 + l) max = 5 m / 0.8 ft
3.93 in
100 mm
Fig. b
7.87 in
.36 in
60 mm 00 mm
l max = 11 m / 36.08 ft
contents of the flue at maximum
2
.36 in
60 mm
min. 4.7 in / 10 mm
95.188.3 - GB