17
2-INSTALLATION INSTRUCTIONS
Technical Dept. - All rights reserved - Reproduction is prohibited
CONNECTION TO FLUE
The connection between the flue and the appliance must be via a smoke duct that conforms with EN 1856-2. The connecting section
must extend no more than 4 m horizontally, with a maximum incline of 3% and containing a maximum of 3 90% bends (accessible for
inspection - do not count the T joint at the appliance outlet).
The diameter of the smoke duct must be equal to or greater than that of the outlet of the appliance (Ø 100 mm).
TYPE OF DEVICE
SMOKE DUCT
Minimum vertical length
1.5 metres
Maximum length
(with 1 accessible 90° bend)
6.5 metres
Maximum length
(with 3 accessible 90° bends)
4.5 metres
Maximum number of accessible 90° bends
3
Horizontal sections
(minimum incline 3%)
4 metres
Use smoke flues of 100mm diameter and silicon seals or similar seals that can resist the high operating temperatures of the appliance
(min. T200 class P1).
The use of flexible metal tubes in fibre cement or aluminium is prohibited. For direction changes, we
always recommend the use of a T joint
with an inspection cap allowing easy access for cleaning the tubes. Always ensure that the
inspection cap is replaced and hermetically sealed with the seal in tact after cleaning.
It is prohibited to connect more than one appliance to the same smoke duct, or the discharge from overhead cowling. It is prohibited to
extract the products of combustion directly through the wall, whether into indoor spaces or outdoors.
The smoke duct must be a minimum distance of 400 mm from flammable or heat-sensitive structures.
We recommend in particular to check the data tags of the flue for the safety distances that must be respected in presence
of combustible materials and the type of insulating material to be used. These indications must be followed rigorously to
avoid serious harm to personnel and surrounding infrastructure.
