6
EN
BLUEHELIX 25K 50
Table. 3 - Max. length of coaxial pipes
Connection with separate pipes
fig. 18 - Examples of connection with separate pipes (
= Air /
= Fumes)
Table. 4 - Typology
For the connection of separate ducts, fit the unit with the following starting accessory:
fig. 19 - Starting accessory for separate ducts
Before 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
eq
(equivalent metres) of every com-
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
Table. 6 - Accessories
Connection to collective flues
fig. 20 - Examples of connection to flues (
= Air /
= Fumes)
Table. 7 - Typology
If the boiler is to be connected
BLUEHELIX 25 K 50
to a collective flue or a single flue
with natural draught, the flue or chimney must be expressly designed by professionally
qualified technical personnel in conformity with the current regulations and be suitable
for sealed chamber units equipped with fan.
3.7 Condensate drain connection
The boiler has an internal trap for draining condensate. Fit the inspection union
A
and
the hose
B
, pressing it in. Fill the trap with about 0.5 L of water and connect the hose to
the disposal system.
B
ATTENTION: The unit must never be operated with the trap empty!
fig. 21 - Condensate outlet connection
Coaxial 60/100
Coaxial 80/125
BLUEHELIX 25 K 50
BLUEHELIX 25 K 50
Max. permissible length
(horizontal)
7 m
28 m
Max. permissible length
(vertical)
8 m
Reduction factor
90° bend
1 m
0.5 m
Reduction factor
45° bend
0.5 m
0.25 m
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
BLUEHELIX 25 K 50
Max. permissible length
80 m
eq
C
5x
C
3x
B
2x
C
1x
max 50 cm
Ø 81
Ø 81
Ø
65
Ø
87
Ø
65
041039X0
Losses in m
eq
Air
inlet
Fume exhaust
Vertical
Horizontal
Ø 80
PIPE
1 m M/F
1KWMA83W
1.0
1.6
2.0
BEND
45° M/F
1KWMA65W
1.2
1.8
90° M/F
1KWMA01W
1,5
2.0
PIPE SECTION
with test point
1KWMA70W
0.3
0.3
TERMINAL
air, wall
1KWMA85A
2.0
-
fumes, wall with antiwind
1KWMA86A
-
5.0
FLUE
Split air/fumes 80/80
010027X0
-
12.0
Fume outlet only Ø80
01
1KWMA86U
-
4.0
Ø 60
PIPE
1 m M/F
1KWMA89W
6.0
BEND
90° M/F
1KWMA88W
4.5
REDUCTION
80/60
041050X0
5.0
TERMINAL
fumes, wall with antiwind
1KWMA90A
7.0
ATTENTION: CONSIDER THE HIGH PRESSURE LOSSES OF Ø60 ACCESSORIES; USE
THEM ONLY IF NECESSARY AND AT THE LAST FUME EXHAUST SECTION.
Type
Description
C2X
Intake and exhaust in common flue (intake and exhaust in same flue)
C4X
Intake and exhaust in common and separate flues , but undergoing similar wind conditions
C8X
Exhaust in single or common flue and wall intake
B3X
Intake from installation room by means of concentric duct (that encloses the exhaust) and exhaust in common flue with
natural draught
IMPORTANT - THE ROOM MUST BE PROVIDED WITH APPROPRIATE VENTILATION
C
8X
C
2X
C
4X
A
B
0,5lt
cod. 3541F704 - Rev. 00 - 12/2018
