Baxi Fourtech 1.24 User Manual

47
926.116.5 - en
INSTRUCTIONS FOR FITTERS
… SEPARATE FLUE AND AIR DUCTS
This type of installation makes it possible to discharge exhaust fumes both outside the building and into single ue ducts.
Comburent air can be drawn in at a different location from that of the ue terminal. The splitting kit comprises a ue duct
adaptor (100/80) and an air duct adaptor. For the air duct adaptor, t the screws and seals previously removed from the cap.
The 90° bend allows the boiler to be connected to a ue-air duct in any direction as it can be rotated by 360°. It can also
be used as a supplementary bend combined with a duct or a 45° bend.
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Adjusting the air regulator for sepa-
rate flues
This regulator must be adjusted to
optimise combustion efficiency and
parameters. After turning the air intake
connecter, which can be mounted both
to the right and the left of the exhaust
flue duct, suitably adjust the excess
air according to the total length of the
combustion exhaust and inlet ue ducts.
Turn this regulator counter-clockwise
to decrease the excess of comburent
air and vice-versa to increase it. To ne
tune, use a combustion product analyser
to measure the amount of CO
2
in the
fumes at maximum heat capacity, and,
if a lower value is measured, gradually
adjust the air regulator until the amount
of CO
2
indicated in the following table
is measured. To mount this device cor-
rectly, consult the relative instructions.
Figure 8
0809_0201 / CG_2045
Flue duct adaptor
Connector
Air intake restrictor
Boiler
model
--
Position
of air regulator
CO2 %
( (
24 F - 1.24 F
0 ÷ 4 1
7,2 84 ÷ 18 2
18 ÷ 30 3
1.14 F
0 ÷ 4 1
4,9 5,5
4 ÷ 30 2

Baxi Fourtech 1.24 Specifications

General

Brand	Baxi
Model	Fourtech 1.24
Category	Boiler
Language	English