Ferroli BlueHelix HiTech RRT C, Instructions For Use, Maintenance And Installation Manual, Page: 321 / 356

BlueHelix HiTech RRT C
321
EN
cod. 3541V300 - Rev. 00 - 02/2021
Important
The unit is a “C-type” with sealed chamber and forced draft; the air inlet and fume outlet must be
connected to one of the extraction/suction systems indicated below. Before proceeding with in-
stallation, check and carefully observe the above instructions. Also, comply with the provisions on
the positioning of wall and/or roof terminals and the minimum distances from windows, walls, ven-
tilation openings, etc.
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 BlueHelix HiTech RRT 24 C =
28
m
BlueHelix HiTech RRT 28 C =
20
m
BlueHelix HiTech RRT 34 C =
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