Contents Of Pack Supplied As Accessories; Installation Of Flue And Air Ducts (Forced-Flow Models) - Westen Boyler digit 240/40 Fi Manual Del Usuario

15. CONTENTS OF PACK SUPPLIED AS OPTIONAL EXTRA
• gas tap (1)
• water supply tap (2)
• gaskets
BOYLER DIGIT 240/40 i -240/40 Fi
Figure 7
2
16. INSTALLATION OF FLUE AND AIR DUCTS
The boiler is easy and flexible 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 flue-air duct.
A splitting kit is also available if separate ducts are required.
Only accessories supplied by the manufacturer must be used for installation!
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 flue is fitted.
The 90° coaxial curve allows the boiler to be connected to a flue-air duct in any direction as it
can be rotated by 360°. It can also be used as a supplementary curve combined with a coaxial
duct or a 45° curve.
WARNING
to optimise operating safety, make sure the flue ducts are firmly fixed to the wall with suitable
brackets.
Connector
A
Concentric connector
Figure 9
If fumes are discharged outside the building, the flue-air duct must protrude at least 18 mm from the wall to allow an aluminium wea-
thering surround to be fitted and sealed to avoid water infiltrations.
Make sure there is a minimum upward slope towards the outside of 1 cm per metre of duct.
•
A 90° curve reduces total duct length by 1 metre.
•
A 45° curve reduces total duct length by 0.5 metres.
INSTRUCTIONS FOR FITTERS
• telescopic joints
• 12 mm rawplugs and supports
1
BOILER MODEL
BOYLER DIGIT
240/40 Fi - 240/60 Fi
BOYLER DIGIT
40
BOYLER DIGIT 240/60 i -240/60 Fi - 280/60 i - 280/60 Fi
2
MAX.
LENGTH
(m)
0,5
0,5 ÷ 2
2 ÷ 4
0 ÷ 1
280/60 Fi
1 ÷ 4
1
Figure 8
INLET
DIAPHRAGM A
(mm)
73
80
NO
76
NO
926.008.2 - EN