Ferroli BLUEHELIX TOP RRT K 50 Instrucciones De Uso, Instalación Y Mantenimiento página 228

Connection with coaxial pipes
fig. 21 - Examples of connection with coaxial pipes (
For coaxial connection, fit the unit with one of the following starting accessories. For the wall hole dimensions, refer to
the figure on the cover. Any horizontal sections of the fume exhaust must be kept sloping slightly towards the boiler, to
prevent possible condensate from flowing back towards the outside and causing dripping.
Ø 100
Ø 60
041083X0
Table 4- Max. length coaxial ducts
Max. permissible length (horizontal)
Max. permissible length (vertical)
Reduction factor 90° bend
Reduction factor 45° bend
228
BLUEHELIX TOP RRT K 50
Ø 127
Ø 80
041006X0
fig. 22- Starting accessories for coaxial ducts
Coaxial 60/100
cod. 3541Q281 - Rev. 02 - 10/2020
= Air / = Fumes)
041084X0
7 m
8 m
1 m
0.5 m
Coaxial 80/125
20 m
0.5 m
0.25 m
EN