Lamborghini Caloreclima ALHENA C Instructions For Use, Installation And Maintenance page 257

ALHENA C
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 dia-
meter (∅50 or ∅60), and up to 4 m of ∅80 mm flue on the intake (with maximum length for flues
of ∅50 and ∅60).
ALHENA 24 C
∅50
A
∅60
max 4 m
Ø80
fig. 29- Layout for ducting only with flexible pipe
28 m MAX
78 m MAX
cod. 3540000251 - Rev. 00 - 03/2024
Separate ducts
max 4 m
Ø80
ALHENA 28 C
22 m MAX
60 m MAX
ALHENA 34 C
17 m MAX
45 m MAX
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