Ferroli BlueHelix HiTech RRT C Instructions For Use, Installation & Maintenance page 350

Flexible and rigid pipes
To use these diameters follow the instructions below.
Access the TS menu and bring the value of parameter P68 to the value corresponding to the
length of flue used. After changing the value, proceed with the complete manual calibration (see
"Calibration procedure [AUTO SETUP]" on page 361).
For model 24 kW /
P68
10
8
6
4
2
0
0 10
Connection to collective flues
For C83 type installations
The unit's fume evacuation pipe is connect-
ed to a single or collective natural draft flue.
The combustion air enters via a second
duct, with its own terminal, directly from the
outside.
The fan is located upstream of the combus-
tion circuit.
• For temperatures and fume flow rates, re-
fer to "Technical data table" on page 381
For C43 type installations
Device intended to be connected via two
separate ducts to a collective natural draft
flue. The flue consist of two ducts (concen-
tric or separate), whose terminals are in sim-
ilar wind conditions; in one the air is sucked
in and in the other the fumes are evacuated.
The fan is located upstream of the combus-
tion circuit.
• For temperatures and fume flow rates, re-
fer to "Technical data table" on page 381
350
For model 28 kW /
20 30 40
fig. 40- Chart for flue parameter choice
cod. 3541V304 - Rev. 00 - 03/2024
BlueHelix HiTech RRT C
For model 34 kW
50 60 70
C
83
fig. 41
C
43
fig. 42
m
80
EN