Ferroli BLUEHELIX TECH A Instructions For Use, Installation And Maintenance page 47

BLUEHELIX TECH A
3.6 Fume ducts
Important
The unit is "type C" with sealed chamber and forced draught; the air inlet and fume outlet
must be connected to one of the following extraction/suction systems. Before installation,
check and carefully observe the above prescriptions. Also, comply with the provisions
concerning the positioning of wall and/or roof terminals and the minimum distances from
windows, walls, vents, etc.
Connection with coaxial pipes
fig. 16 - Examples of connection with coaxial pipes (
Table. 2 - Typology
Type Description
C1X Wall horizontal exhaust and inlet
C3X Roof vertical exhaust and inlet
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.
Ø 100
Ø 60
041002X0
041001X0
fig. 17 - Starting accessory for coaxial ducts
Table. 3 - Max. length of coaxial pipes
Max. permissible length
(horizontal)
Max. permissible length
(vertical)
Reduction factor
90° bend
Reduction factor
45° bend
= Air / = Fumes)
Ø 127
Ø 80
041006X0
Coaxial 60/100 Coaxial 80/125
BLUEHELIX TECH 18 A BLUEHELIX TECH 18 A
BLUEHELIX TECH 25 A BLUEHELIX TECH 25 A
BLUEHELIX TECH 35 A BLUEHELIX TECH 35 A
7 m
28 m
8 m
1 m 0.5 m
0.5 m 0.25 m
cod.
Connection with separate pipes
C
5x
fig. 18 - Examples of connection with separate pipes (
Table. 4 - Typology
Type Description
C1X Wall horizontal exhaust and intake. The inlet/outlet terminals must be concentric or close enough to be
undergo similar wind conditions (within 50 cm)
C3X Roof vertical exhaust and intake. Inlet/outlet terminals like for C12
C5X Wall or roof exhaust and intake separate or in any case in areas with different pressures. The exhaust and
intake must not be positioned on opposite walls.
C6X Intake and exhaust with separately certified pipes (EN 1856/1)
B2X Intake from installation room and wall or roof exhaust
IMPORTANT - THE ROOM MUST BE PROVIDED WITH APPROPRIATE VENTILATION
For connection of the separate ducts, fit the unit with the following starting accessory:
Ø 81
fig. 19 - Starting accessory for separate ducts
Before proceeding with installation make sure the maximum permissible length has not
been exceeded, by means of a simple calculation:
1. Completely establish the layout of the system of split flues, including accessories
and outlet terminals.
2. Consult the table 6 and identify the losses in m
ponent, according to the installation position.
3. Check that the sum total of losses is less than or equal to the maximum permissible
length in table 5.
Table. 5 - Maximum length of separate ducts
BLUEHELIX TECH 18 A
BLUEHELIX TECH 25 A
Max. permissible length
Table. 6 - Accessories
PIPE 1 m M/F
BEND 45° M/F
90° M/F
PIPE SECTION with test point
Ø 80
TERMINAL air, wall
fumes, wall with antiwind
FLUE Split air/fumes 80/80
Fume outlet only Ø80
PIPE 1 m M/F
BEND 90° M/F
Ø 60
REDUCTION 80/60
TERMINAL fumes, wall with antiwind
ATTENTION: CONSIDER THE HIGH PRESSURE LOSSES OF Ø60 ACCESSORIES;
USE THEM ONLY IF NECESSARY AND AT THE LAST FUME EXHAUST SECTION.
B C
2x 1x
= Air /
Ø 81
041039X0
(equivalent metres) of every com-
eq
BLUEHELIX TECH 35 A
80 m 70 m
eq eq
Losses in m
eq
Air Fume exhaust
inlet
Vertical
1KWMA83W 1.0 1.6
1KWMA65W 1.2
1KWMA01W 1,5
1KWMA70W 0.3
1KWMA85A 2.0
1KWMA86A -
010027X0 - 12.0
010026X0 + -
1KWMA86U
1KWMA89W
1KWMA88W
041050X0
1KWMA90A
EN
= Fumes)
Horizontal
2.0
1.8
2.0
0.3
-
5.0
4.0
6.0
4.5
5.0
7.0
47