MCZ Forma Wood 75 Dx - mod.2012 - Manual (Page 16)

14
4-FLUE
TYPE OF DEVICE SMOKE DUCT
Minimum vertical length 1.5 metres
Maximum length
(with 1 accessible 90° bend)
4.5 metres
Maximum length
(with 3 accessible 90° bends)
2.5 metres
Maximum number of accessible 90° bends 3
Horizontal sections
(minimum incline 3%)
2 metres
Use smoke ducts that are able to withstand the unit operating temperatures (min. T400). 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 installed observing the safety distances from flammable materials as specified on the data plate (e.g. G400=
400 mm).