313
EN
cod. 3541V620 - Rev. 00 - 05/2021
ALHENA TECH H
In case of installation with maximum resistance (coaxial or separate flue) it is advisable to
carry out a calibration procedure [AUTO SETUP] to optimize boiler combustion
.
Connection with coaxial pipes
fig. 30- Examples of connection with coaxial pipes (
= Air /
= Fumes)
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.
fig. 31- Starting accessories for coaxial ducts
Table 5- Max. length coaxial ducts
Coaxial 60/100
Coaxial 80/125
Max. permissible length (horizontal)
All models
7
m
ALHENA TECH 28 H =
20
m
ALHENA TECH 34 H =
20
m
Max. permissible length (vertical)
All models
8
m
Reduction factor 90° bend
1 m
0.5 m
Reduction factor 45° bend
0.5 m
0.25 m
C
1X
C
1X
C
3X
C
3X
C
3X
C
1X
041006X0
041084X0
041083X0
Ø 80
Ø 127
120
147
Ø 100
Ø 60
Ø 60 Ø 100
Содержание ALHENA TECH H
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