Ferroli BLUEHELIX TECH RRT 28 С Instructions For Use, Installation And Maintenance page 161

BLUEHELIX TECH RRT 28 C
Connection with coaxial pipes
fig. 21 - Examples of connection with coaxial pipes (
Table. 2 - Typology
Type Description
C1X Wall horizontal exhaust and inlet
C3X Roof vertical exhaust and inlet
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. 3 - Max. length of coaxial pipes
Max. permissible length
(horizontal)
Max. permissible length
(vertical)
Reduction factor
90° bend
Reduction factor
45° bend
EN
Ø 127
Ø 80
041006X0
fig. 22- Starting accessories for coaxial ducts
Coaxial 60/100
cod. 3541N260 - Rev. 01 - 10/2017
= Air / = Fumes)
041084X0
7 m
8 m
1 m
0.5 m
Coaxial 80/125
28 m
0.5 m
0.25 m
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