AQUAKOND AKY
CONDENSING BOILER
25
code HC0048.10GB ed.B-1811
AKY
HC0047 C2 028
Lm
ax
AKY models
032
034
050
070
100
Pressure available at the exhaust
120
120
100
150
90
[Pa]
Component
Code
Ø80 SMOOTH PIPE [l=1m]
2.1
2.1
4.9
7.3
17.5
G15820-08-100
BEND Ø80 WIDE RADIUS 90°
3.4
3.5
7.9
11.9
28.4
G15810-08-90
BEND Ø80 WIDE RADIUS 45°
1.7
1.7
3.9
5.9
14.1
G15810-08-45
Ø80 ROOF MOUNTED TERMINAL,
WINDPROOF EXHAUST ONLY
0.1
0.2
0.8
1.4
4.4
TB23-08-VSW
Ø80 HORIZONTAL UPTAKE ONLY
2.6
2.6
4.6
6.4
13.8
TC00-08-HS0
Ø100 SMOOTH PIPE [l=1m]
0.6
0.6
1.3
2.0
4.7
G15820-10-100
BEND Ø100 WIDE RADIUS 90°
1.3
1.4
3.1
4.6
11.1
G15810-10-90
BEND Ø100 WIDE RADIUS 45°
0.6
0.6
1.4
2.0
4.8
G15810-10-45
Ø100 ROOF MOUNTED TERMINAL,
WINDPROOF EXHAUST ONLY
0.3
0.3
1.2
2.0
5.9
TB23-10-VSW
UPTAKE ONLY Ø100 HORIZONTAL
1.5
1.5
2.0
2.4
4.3
TC00-10-HS0
ADAPTOR Ø80/100
0.7
0.8
1.7
2.6
6.2
G15815-08-10
ADAPTOR Ø100/80
0.7
0.8
1.7
2.6
6.2
G15815-10-08
5.7. Connections to the Flue
To make the fume exhaust, taking into account that AKY boilers
can condense, the following must be used:
•
Aluminium with a thickness higher than or equal to 1.5 mm;
•
Stainless steel with a thickness of at least 0.6 mm; steel
must have a carbon content of maximum 0.2%.
Use pipes equipped with the sealing gasket (suitable to withstand
fume temperature)
to prevent fumes from exiting the pipes.
For AKY032, AKY034, AKY050 and AKY070
The external unit (boiler) is supplied with B23P fume exhaust,
made of plastic material [polypropylene], white, composed of:
•
rainproof protection for air intake;
•
90° bend Ø60;
•
fume exhaust terminal Ø60 with a well for fume analysis.
The boiler is provided with a thermal fuse on flue gas outlet
protecting the polypropylene flue and with a thermal fuse on
the exchanger.
The boiler can discharge directly on the wall only if it is installed
in place of another one equipped with exhaust on the wall. New
systems require exhaust on the roof.
The fume exhaust horizontal terminal should be positioned towards
the front side of the boiler (see drawing to the side) to prevent
fumes from condensing close to the wall, thereby wetting it.
CERTIFIED pipes and terminals must be used.
W
ARNING: install the protection on the boiler fume
exhaust as shown below, otherwise, in case of rain,
some water can get inside the equipment.
N
ote: the presence of a fume analysis intake on the
flue at a distance not greater than 1m from the boiler
is mandatory.
With PP Ø80 smooth fume exhaust, the maximum length is
8 m
.
For AKY100
The boiler is C63 certified; therefore, accessories compliant with
current regulations must be used to manufacture the customer's
intake and exhaust ducts.
Selection Guide
The table below shows the pressure drops for the most used
terminals and exhaust ducting.
If the terminal is not directly connected to the heater and,
therefore, extra routing is required, according to the length of
UNIT SET FOR G20 [NATURAL GAS]
Model
Flues gas
temperature
[°C]
CO
2
level
Fumes flow
rate
[kg/h]
032
84
9.2
53.2
034
85
9.2
60.4
050
84
9.1
99.4
070
83
9.4
107.5
100
83
9.1
167.5
UNIT SET FOR G31 [LPG]
Model
Flues gas
temperature
[°C]
CO
2
level
Fumes flow
rate
[kg/h]
032
84
9.6
46.4
034
85
9.6
53.6
050
85
9.9
89.3
070
82
9.6
96.6
100
83
9.7
79.5
the ducting, the diameter of the selected terminals, extensions
and bends must be checked.
After establishing the routing, the pressure drop must be
calculated for each component by referring to the tables below
according to the boiler used; each component has a different
pressure drop value as the fume flow rate is different.
Add together the pressure drops of the single components,
checking that the result is not higher than the available value
for the heater to be used. If a combustion air supply pipe is
fitted, the pressure drops must be added to the fume exhaust
pressure drops.
If the sum of the pressure drops is higher than the available
pressure, ducting with higher diameter must be used, rechecking
the calculation; a pressure drop higher than the pressure available
at the flue gas exhaust reduces the heater heat output and could
trigger the flue gas pressure switch.
