Alpha 28X - Technical Data; Technical Performance Data - Natural Gas

4
2 TECHNICAL DATA
Alpha InTec C and X - Technical Data
2.1 TECHNICAL PERFORMANCE DATA - NATURAL GAS (Cat I2H 2H - G20 20 mbar)
Heat input gross - DHW kW
Heat input gross - CH kW
Heat input net - DHW kW
Heat input net - CH kW
Heat output condensing (50/30°C) - CH kW
Heat output non condensing (80/60°C) CH kW
Heat output min. - CH kW
Heat output nominal - DHW kW
Heat output max. - DHW kW
Gas rate at max. output m³/h
Gas supply pressure mbar
Max. CH temperature °C
Gas burner injector diameter mm
Differential burner pressure - min. mbar
Differential burner pressure - CH mbar
Differential burner pressure - DHW mbar
DHW flow rate at 35°C rise l/min
DHW flow rate at 30°C rise - EN625 l/min
DHW flow regulator l/min
Dry NOx weight mg/kWh
Dry NOx PPM
NOx Class
Factory set max. CO
2
(± 0.5%)
CO
2
maximum - CH output %
CO
2
maximum - DHW output %
CO
2
minimum output %
CO PPM
CO weight mg/kWh
Maximum CO/CO
2
Ratio
SAP/SEDBUK seasonality efficiency 2005 %
SAP/SEDBUK seasonality efficiency 2009 %
EN13203/2 DHW efficiency %
Max. primary system pressure bar
Min. primary system pressure bar
Recommended system pressure - Cold bar
System pressure relief valve setting bar
Expansion vessel size litres
Expansion vessel charge pressure bar
Electrical power consumption - Max. Watts
Electrical power consumption - Standby Watts
32.7
27.1
29.5
24.4
26.3
23.6
4.8
29.0
31.7
3.12
20
82
6.8
0.15
2.34
3.65
12.6
14.7
N/A
30
17
5
9.45
9.45
8.6
18
19
0.003
90.03
88.22
2.5
0.5
1.0
3.0
8.0
1.0
120
6
37.9
31.5
33.7
28.0
30.7
27.6
7.2
33.7
36.7
3.62
20
82
N/A
0.15
1.33
2.06
14.5
16.9
N/A
36
20
5
9.5
9.5
8.7
25
27
0.003
90.5
88.76
2.5
0.5
1.0
3.0
8.0
1.0
125
6
27.5
20.6
24.8
18.6
20.0
18.0
3.2
24.3
26.4
2.62
20
82
5.1
0.17
3.72
6.48
10.8
12.6
12
22
13
5
9.4
9.4
8.6
24
25
0.003
90.3
89.2
2.5
0.5
1.0
3.0
8.0
1.0
115
6
31.4
27.1
28.3
24.4
26.8
23.6
4.8
28.0
30.6
3.0
20
82
6.8
0.15
2.36
3.28
12.3
14.3
14
30
17
5
9.45
9.45
8.6
18
19
0.003
90.03
88.22
2.5
0.5
1.0
3.0
8.0
1.0
120
6
29.7
20.6
26.8
18.6
20.0
18.0
3.2
26.3
28.4
2.84
20
82
5.1
0.17
3.95
7.61
11.6
13.6
13
22
13
5
9.4
9.4
8.6
24
25
0.003
90.3
89.2
2.5
0.5
1.0
3.0
8.0
1.0
115
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