Alpha CD12S - Technical Data

3
2.1 PERFORMANCE - NATURAL GAS (CAT: I2H 2H - G20 - 20 mbar)
2 TECHNICAL DATA
Alpha CD12S/20S/28S - Technical Data
Alpha CD12S
MAX.
13.6
46 400
12.3
41 960
12.8
43 650
12.0
40 950
6.6
2.64
1.30
45.9
MIN.
2.9
9 890
2.6
8 870
2.5
8 530
2.4
8 200
0.2
0.08
0.28
9.9
Room sealed
chamber panel
fitted
Central Heating
Heat Input (H
s
) kW
(Gross) Btu/h
Heat Input (H
i
) kW
(Net) Btu/h
Heat Output (H
s
condensing) kW
(50°C/30°C) Btu/h
Heat Output (H
i
non-condensing) kW
(80°C/60°C) Btu/h
Differential Burner mbar
Pressure in wg
Gas Rate m³/h
ft³/h
MAX.
20.4
69 600
18.4
62 780
19.5
66 500
18.0
61 420
6.65
2.66
1.96
69.2
MIN.
3.8
12 960
3.5
11 950
3.5
11 950
3.3
11 260
0.33
0.13
0.37
13.0
Room sealed
chamber panel
fitted
Central Heating
Heat Input (H
s
) kW
(Gross) Btu/h
Heat Input (H
i
) kW
(Net) Btu/h
Heat Output (H
s
condensing) kW
(50°C/30°C) Btu/h
Heat Output (H
i
non-condensing) kW
(80°C/60°C) Btu/h
Differential Burner mbar
Pressure in wg
Gas Rate m³/h
ft³/h
Alpha CD20S
MAX.
31.8
108 500
28.7
97 920
30.1
102 700
28.0
95 540
6.3
2.52
3.04
107.3
MIN.
6.3
21 500
5.7
19 450
5.7
19 450
5.4
18 420
0.25
0.10
0.6
21.2
Room sealed
chamber panel
fitted
Central Heating
Heat Input (H
s
) kW
(Gross) Btu/h
Heat Input (H
i
) kW
(Net) Btu/h
Heat Output (H
s
condensing) kW
(50°C/30°C) Btu/h
Heat Output (H
i
non-condensing) kW
(80°C/60°C) Btu/h
Differential Burner mbar
Pressure in wg
Gas Rate m³/h
ft³/h
Alpha CD28S
Note: The above appliances are fully modulating and are not range rated.