Alpha E-Tec 20R - TECHNICAL DATA; Technical Performance Data - Natural Gas; Technical Performance Data - LPG

5
3 TECHNICAL DATA
Alpha E-Tec 15, 20, 25R - Technical Data
Note: OtherTechnical data is the same as NG data.
* with Alpha Diverter Kit or DHW relay fitted
** Sealed system - Kit required
* with Alpha Diverter Kit or DHW relay fitted
3.2 TECHNICAL PERFORMANCE DATA - LPG - PROPANE GAS (Cat I3P 3P - G31 37 mbar)
Heat input gross - DHW* kW
Heat input gross - CH kW
Gas supply pressure mbar
Gas burner injector mm
CO
2
at maximum CH output %
CO
2
at maximum DHW output %
CO
2
at minimum output %
Gas rate at maximum output kg/h (g/s)
31.3
26.7
37
3.80
11.4
11.4 (+0.1/-0.3)
10.6 (+0.3/-0.1)
2.24 (0.62)
E-Tec 25R
3.1 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
Gas rate at max. output m³/h
Gas supply pressure mbar
Max. CH temperature - Set point °C
Gas burner injector diameter mm
Dry NOx weight (net calorific value) mg/kWh
Dry NOx ppm
NOx Class
Factory set CO
2
CO
2
at maximum CH output %
CO
2
at maximum DHW output %
CO
2
at minimum output %
CO (max) ppm
Maximum CO/CO
2
Ratio
SAP/SEDBUK seasonality efficiency 2005 %
SAP/SEDBUK seasonality efficiency 2009 %
ErP Seasonal space heating efficiency %
Max. primary system pressure** bar (MPa)
Min. primary system pressure** bar (MPa)
Recommended system pressure - Cold** bar (MPa)
System pressure relief valve setting** bar (MPa)
Expansion vessel size** litres
Expansion vessel charge pressure** bar (MPa)
Electrical power consumption - Max. Watts
Electrical power consumption - Standby Watts
Max. temperature of combustion products °C
Max. flue overheating temperature °C
Category
Type of installation
E-Tec 25R
32.0
27.3
28.8
24.6
26.1
24.1
4.3
28.3
3.05
20
80
5.00
35
20
6
9.7
9.7 (+0.5/-0.2%)
8.8 (+0.2/-0.3%)
450
0.004
90.3
89
92
2.5 (0.25)
0.5 (0.05)
1.0 (0.1)
3.0 (0.3)
8.0
1.0 (0.1)
55
6
75
120
II 2H3P
E-Tec 20RE-Tec 15R
C13, C33, C43, C53, C63, C83, C93
31.3
22.4
37
3.80
11.5
11.4 (+0.1/-0.3)
10.6 (+0.3/-0.1)
2.24 (0.62)
E-Tec 20R
31.3
16.7
37
3.80
11.5
11.4 (+0.1/-0.3)
10.6 (+0.3/-0.1)
2.24 (0.62)
E-Tec 15R
32.0
22.9
28.8
20.6
21.7
20
4.3
28.3
3.05
20
80
5.00
39
22
6
9.7
9.7 (+0.5/-0.2%)
8.8 (+0.2/-0.3%)
450
0.004
90
88.8
92
2.5 (0.25)
0.5 (0.05)
1.0 (0.1)
3.0 (0.3)
8.0
1.0 (0.1)
55
6
75
120
II 2H3P
32.0
17.1
28.8
15.4
16.3
15
4.3
28.3
3.05
20
80
5.00
36
20
6
9.7
9.7 (+0.5/-0.2%)
8.8 (+0.2/-0.3%)
450
0.004
90.1
88.9
92
2.5 (0.25)
0.5 (0.05)
1.0 (0.1)
3.0 (0.3)
8.0
1.0 (0.1)
55
6
75
120
II 2H3P