Ferroli BlueHelix ALPHA C Instrucciones De Uso, Instalación Y Mantenimiento página 258

Duct diameters and tolerances
Coaxial ducts
Use of flexible and rigid pipes ∅50 and ∅60
The calculation shown in the tables below includes the starting accessories code 041087X0 for
∅50 and code 041050X0 for ∅60.
Flexible pipe
It is possible to use up to 4 m of ∅80 mm flue between the boiler and the change to smaller diam-
eter (∅50 or ∅60), and up to 4 m of ∅80 mm flue on the intake (with maximum length for flues of
∅50 and ∅60).
BlueHelix ALPHA 24 C
∅50
28 m MAX
A
∅60 78 m MAX
258
max 4 m max 4 m
Ø80
fig. 29- Layout for ducting only with flexible pipe
BlueHelix ALPHA 28 C
22 m MAX
60 m MAX
cod. 3540000021 - Rev. 00 - 02/2024
BlueHelix ALPHA C
Separate ducts
Ø80
BlueHelix ALPHA 34 C
17 m MAX
45 m MAX
EN