3
13.2
2.9
15.4
3.9
9.6
2.2
11.2
2.5
2.1 PERFORMANCE - NATURAL GAS
(CAT: I2H 2H - G20 - 20 mbar)
2 TECHNICAL DATA
Alpha CD24C/32C - Technical Data
MAX.
26.4
90 100
24.0
82 000
24.20
82 600
5.78
2.3
2.54
89.7
MIN.
5.5
18 800
5.0
17 100
4.97
17 000
0.35
0.14
0.53
18.7
Domestic Hot Water
Heat Input (H
s
)kW
(Gross) Btu/h
Heat Input (H
i
)kW
(Net) Btu/h
Output to Water (H
s
)kW
(modulating) Btu/h
Differential Burner mbar
Pressure in wg
Gas Rate m³/h
ft³/h
Flow Rate at 35°C Rise L/min
gal/min
Specific Flow Rate (D) at 30°C Rise L/min
(Flow rate @ 30K to EN625) gal/min
Room sealed
chamber panel
fitted
Alpha CD24C
Alpha CD24C
MAX.
31.1
106 100
28.0
95 550
29.8
101 700
28.0
95 500
3.33
1.33
2.98
105.2
MIN.
7.3
24 900
6.6
22 500
7.0
23 900
6.5
22 200
0.39
0.16
0.69
24.4
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
Domestic Hot Water
Heat Input (H
s
)kW
(Gross) Btu/h
Heat Input (H
i
)kW
(Net) Btu/h
Output to Water (H
s
)kW
(modulating) Btu/h
Differential Burner mbar
Pressure in wg
Gas Rate m³/h
ft³/h
Flow Rate at 35°C Rise L/min
gal/min
Specific Flow Rate (D) at 30°C Rise L/min
(Flow rate @ 30K to EN625) gal/min
Room sealed
chamber panel
fitted
Alpha CD32C
Alpha CD32C
MIN.
7.3
24 900
6.6
22 500
6.6
22 500
0.39
0.16
0.69
24.4
MAX.
36.2
123 500
32.6
111 300
32.0
109 200
4.27
1.71
3.45
121.8
MAX.
26.4
90 100
24.0
82 000
25.4
86 700
23.5
81 135
5.78
2.30
2.54
89.7
MIN.
5.5
18 800
5.0
17 100
5.3
18 100
4.7
16 018
0.35
0.14
0.53
18.7
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
Central Heating (Sealed System)
Max. Working System Pressure
Min. System Pressure
Max. System temperature
Pressure Relief Valve Setting
Expansion Vessel Size (pre-charge press.)
Flow Connection
Return Connection
Relief Valve Connection
Recommended System Pressure (cold)
CH Water Temp. (Approx. max.)
2.5 bar
0.5 bar
82°C
3 bar (44 PSI)
8 L at 0.8 bar
22 mm
22 mm
15 mm
1.0 bar
82°C (180°F)
Domestic Hot Water
Max. Mains Inlet Water Pressure
Min. Mains Water Pressure
Min. DHW Flow Rate
Mains Inlet Connection
DHW Outlet Connection
DHW Water Content CD24C
CD32C
Outlet Water Temp. (Approx. max.)
8 bar
0.2 bar
2.5 l/min
15 mm
15 mm
0.2 L
0.3 L
62°C (144°F)
2.2 SYSTEM
Alpha CD24C and CD32C
Alpha CD24C
Burner
Main Heat exchanger
DHW Heat Exchanger
Main Burner Injector CD24
CD32
Flue - Outer Duct
Flue - Inner Duct
Stainless steel
Stainless steel
Stainless Steel
5.0 mm
6.6 mm
White
Plastic
2.3 COMPONENTS 2.4 ELECTRICAL
Supply
External Fuse
Power Consumption CD24
CD32
Internal Fuse
Electrode Spark Gap
230/240 V ~ 50 Hz
3 A
130 W
140 W
F2 A
3 - 4 mm
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