57
912.359.1 - IE
IstructIons pErtaInIng to thE InstallEr
Connect the boiler to the flue using a pipe made of stainless steel or plastic material with an internal diameter
of 100 mm, capable of resisting normal mechanical stresses over time, as well as high temperatures (<120°C)
and the chemical effects of fuel gases and their condensates.
Insert the flue-gas union and fasten the connector to the flue-gas thermostat before hooking up to
the flue.
Whenever possible use a flue connection that can be disconnected for maintenance.
Important! horizontal flue sections must have a minimum slope of 3° towards the boiler.
Flue accessories made of plastic material for cascade or single installations are available (diameter 110 mm)
Figure 7
11. chimney flue connection
Each 45° bend
reduces the duct
max. length by
0,5 m
Each 90° bend
reduces the duct
max. length by
1 m
Max. length
of flue duct
(L)
20 m
0512_1809
0512_1808/CT0667
Important! If the exhaust flue is longer than 10 metres, certain parameters on the electronic control card have
to be modified (see sections 13 and 14).
