Contents Of Pack; Installation Of Flue And Air Ducts - Baxi Nuvola 3 Comfort Operating And Installation Instructions

• template
• gas tap (1)
• water supply tap (2)
• gaskets
• telescopic joints
• 8 mm rawlplugs and supports
16. INSTALLING THE 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 bend 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 bend combined with a
coaxial duct or a 45° bend.
WARNING
To optimise operating safety, make sure the flue ducts are firmly fixed to
the wall with suitable brackets.
Connector
A
Concentric ad
Figure 8
If fumes are discharged outside the building, the flue-air duct must protrude at least 18 mm from the wall to allow an aluminium we-
athering 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° bend reduces total duct length by 1 metre.
a 45° bend reduces total duct length by 0.5 metres.
INSTRUCTIONS FOR FITTERS

15. CONTENTS OF PACK

Figure 6
NUVOLA 3 140 Fi
NUVOLA 3 240 Fi
NUVOLA 3 280 Fi
NUVOLA 3 320 Fi
16
2
Figure 7
MAX.
BOILER MODEL
LENGTH
(m)
0 ÷ 2,5
2,5 ÷ 5
0 ÷ 0,5
0,5 ÷ 2
2 ÷ 4
0 ÷ 1
1 ÷ 4
0 ÷ 1
1 ÷ 3
1
INLET
DIAPHRAGM A
(mm)
73
NO
73
80
NO
76
NO
80
NO
C607215 - GB