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4.3 Hydraulic circuit
4
15
8
7
12
3
fig. 17 - Hydraulic circuit
1
Gas inlet
2
Cold water inlet
3
Domestic hot water outlet
4
Sealed chamber
5
Fan
7
Burner assembly
50
EN
10
11
1
2
8
Copper exchanger
9
Combustion gas collector
10 Flue gas outlet collector
11 Flow switch
12 Gas valve
15 Double sensor (safety + DHW)
4.4 Technical data table
Data
Maximum heat capacity
Minimum heat capacity
Maximum heat capacity
Minimum heat capacity
Performance at max. power
5
Burner injectors G20
Gas supply pressure G20
Max. burner pressure with G20
9
Min. burner pressure with G20
Maximum gas delivery G20
Minimum gas delivery G20
Burner injectors G30
Gas supply pressure G30
Max. burner pressure with G30
Min. burner pressure with G30
Maximum gas delivery G30
Minimum gas delivery G30
Burner injectors G31
Gas supply pressure G31
Max. burner pressure with G31
Min. burner pressure with G31
Max. gas delivery G31
Min. gas delivery G31
Water heating energy efficiency
class
NOx emission class
Max. operating pressure
Min. operating pressure
DHW delivery ∆25º
DHW delivery ∆30º
Degree of protection
Supply voltage
Absorbed electrical power
Empty weight
Weight with packaging
Type of unit
PIN CE
code A73022090
SKY ECO F
Units
11
14
17
kW
21.7
26.9
32.9
kW
8.3
10.3
12.6
kW
19.5
24.2
29.6
kW
7.6
9.5
11.6
%
89.9
90.0
90.0
no. x Ø
24 x 0,85 28 x 0,85 32 x 0,85
mbar
20
20
20
mbar
11.3
12.5
14.8
mbar
1.8
2.0
2.8
m
3
/h
2.296
2.847
3.481
m
3
/h
0.878
1.090
1.333
no. x Ø
24 x 0,5
28 x 0,5
32 x 0,5
mbar
29
29
29
mbar
25
26
27
mbar
5
5
5
m
3
/h
0.673
0.834
1.020
m
3
/h
0.257
0.319
0.391
no. x Ø
24 x 0,5
28 x 0,5
32 x 0,5
mbar
37
37
37
mbar
35.5
35.5
35.5
mbar
5
5
5
m
/h
0.888
1.101
1.346
3
m
/h
0.340
0.421
0.516
3
***
***
-
6 (<56 mg/kWh)
bar
10
10
10
bar
0.2
0.2
0.2
l/min
11.2
13.9
17.0
l/min
9.3
11.6
14.2
IP
X5D
X5D
X5D
V/Hz
230 V/50 Hz
W
40
40
40
Kg
14.1
15
16.5
Kg
15.1
16.4
18
C12-C22-C32-C42-C52-C62-
C72-C82-B22
Q
Q
NOx
PMS
D
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