16. INSTALLING THE FLUE AND AIR DUCTS
Figure 6
0503_0905/CG1638
Model 24 F - 1.24 F - 1.14 F
The boiler is easy and exible to install thanks to the
extensive range of available accessories, as described
below. The boiler has been designed for connection to a
vertical or horizontal coaxial ue-air duct. A splitting kit is
also available if separate ducts are required.
Only accessories supplied by the manufacturer must
be used for installation!
WARNING : To guarantee more operating insurance it
is necessary to assure the flue pipes to the wall using
the apposite clamps.
… COAXIAL FLUE-AIR DUCT (CONCENTRIC)
This type of duct is used to discharge exhaust fumes and draw combustion air both outside the building and if a LAS ue
is tted.
The 90° coaxial 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 coaxial duct or a 45° bend.
If fumes are discharged outside the building, the ue-air duct
must protrude at least 18 mm from the wall to allow an alu-
minium weathering surround to be tted and sealed to avoid
water inltrations. Make sure there is a minimum upward slope
towards the outside of 1 cm per metre of duct.
• a 90° bend reduces total duct length by 1 metre.
• a 45° bend reduces total duct length by 0.5 metres.
The first 90° bend is not included when calculating the
maximum available length.
Figure 7
@$(@
Connector
Boiler
model
Length (m)
Use of DIAPHRAGM on
INLET LINE
A
24 F
1.24 F
1.14 F
0 ÷ 1 Yes
1 ÷ 5 No
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