3
2.1
PERFORMANCE - NATURAL GAS
(CAT: I2H
2H - G20 - 20 mbar)
2
TECHNICAL DATA
Alpha CD18S/24S/30S - Technical Data
Alpha CD18S
MAX.
20.3
69 200
18.3
62 400
19.5
66 500
18.1
61 800
3.5
1.4
1.93
68.2
MIN.
5.5
18 800
5.0
17 000
5.3
18 100
4.7
16 050
0.3
0.12
0.52
18.36
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
2.4
ELECTRICAL
Supply
External Fuse
Power Consumption
CD18/24
CD30
Internal Fuse
Electrode Spark Gap
230/240 V ~ 50 Hz
3 A
130 W
140 W
F2 A
3 - 4 mm
Burner
Main Heat exchanger
Main Burner Injector
CD18/24
CD30
Flue - Outer Duct
Flue - Inner Duct
Stainless steel
Stainless steel
5.0 mm
6.6 mm
White
Plastic
2.3
COMPONENTS
2.2
SYSTEM
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)
Alpha CDS models
Alpha CD24S
Alpha CD30S
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
16 050
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
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
Содержание Alpha CD18S
Страница 11: ...11 Alpha CD18S 24S 30S General Boiler Information Fig 9 External soakaway Fig 8 External gully ...
Страница 29: ...29 9 1 ILLUSTRATED WIRING DIAGRAM Alpha CD18S 24S 30S Wiring Diagrams 9 WIRING DIAGRAMS ...
Страница 30: ...30 Alpha CD18S 24S 30S Wiring Diagrams 9 2 FUNCTIONAL FLOW WIRING DIAGRAM ...
Страница 32: ...32 10 2 FAULT FINDING SOLUTIONS A to E Alpha CD18S 24S 30S Fault Finding ...
Страница 33: ...33 Alpha CD18S 24S 30S Fault Finding 10 3 FAULT FINDING SOLUTIONS F to K ...
