Ferroli BLUEHELIX THETA C Manual page 68

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
68
Ø 127
Ø 80
041006X0
fig. 22- Starting accessories for coaxial ducts
Coaxial 60/100
All models m
7
All models m
8
1 m
0.5 m
cod. 3540000272 - Rev. 01 - 01/2024
BLUEHELIX THETA C
= Air / = Fumes)
041084X0
Coaxial 80/125
= m
24 kW 28
= m
28 kW 20
= m
34 kw 20
0.5 m
0.25 m
EN