Alpha Alpha CB24 Manuel utilisateur
Supplementary LPG Boiler
Instructions
Nepicar House, London Road,
Wrotham Heath, Sevenoaks,
Kent TN15 7RS
For Technical help or for Service call ...
ALPHA HELPLINE
Tel: 0870 3001 964
Alpha CB24/28 and SY9-24
Range of Wall Mounted, Fan Assisted, Room Sealed,
Gas Fired Boilers
Alpha CB24X British Gas G.C. No. 47 532 14
Alpha CB24 British Gas G.C. No. 47 532 15
Alpha CB28 British Gas G.C. No. 47 532 16
Alpha CB28X British Gas G.C. No. 47 532 17
Alpha SY9-24 British Gas G.C. No. 41 532 01
Service Listed
For use with LPG (Propane) only
Leave these instructions with the User
2CB24/28 and SY24 LPG Supplement
1 INTRODUCTION
This supplement is for the LPG model of the boiler; it must be read in conjunction with the 'Installation and Servicing
Instructions' supplied with the boiler and provides the extra information which is particular to LPG.
The Alpha CB24/28 range of combination boilers are wall mounted, fan assisted room-sealed combination boilers providing
both central heating and domestic hot water at mains pressure.
The Alpha SY9-24 is a System boiler providing heating only, for sealed central heating systems.
The boilers are designed for use with a fully pumped sealed and pressurised heating system using only PROPANE gas.
2 TECHNICAL DATA
2.1 PERFORMANCE - PROPANE GAS
MAX.
28.4
96 900
23.3
79 500
35.5
14.2
1.1
39.1
MIN.
12.1
41 300
9.3
31 700
7.2
2.9
0.45
16.1
MAX.
28.4
96 900
23.3
79 500
35.5
14.2
1.1
39.1
MIN.
12.1
41 300
9.3
31 700
7.2
2.9
0.45
16.1
Room sealed chamber
panel fitted Room sealed chamber
panel fitted
Central Heating
Heat Input kW
(Gross) Btu/h
Heat Output (modulating) kW
Btu/h
BurnerPressure mbar
Settings in wg
Gas Supply Pressure (LPG) mbar
in wg
Gas Rate (LPG) m³/h
ft³/h
CH Water Temp. (Approx. max.) °C
°F
37.0
14.8
82
180
37.0
14.8
9.5
2.1
62
144
Domestic Hot Water
Heat Input kW
(Gross) Btu/h
Output to Water (modulating) kW
Btu/h
BurnerPressure mbar
Settings in wg
Gas Supply Pressure (LPG) mbar
in wg
Gas Rate (LPG) m³/h
ft³/h
Flow Rate at 35°C Rise L/min
G.P.M.
Outlet Water Temp. (Approx. max.) °C
°F
2.2 PERFORMANCE - PROPANE GAS
MAX.
34.0
116 000
28.0
95 500
36.0
14.4
1.3
47.1
MIN.
14.3
48 800
11.2
38 200
7.5
3.0
0.45
16.1
MAX.
34.0
116 000
28.0
95 5000
36.0
14.4
1.3
47.1
MIN.
14.3
48 800
11.2
38 200
7.5
3.0
0.45
16.1
Room sealed chamber
panel fitted Room sealed chamber
panel fitted
Central Heating
Heat Input kW
(Gross) Btu/h
Heat Output (modulating) kW
Btu/h
BurnerPressure mbar
Settings in wg
Gas Supply Pressure (LPG) mbar
in wg
Gas Rate (LPG) m³/h
ft³/h
CH Water Temp. (Approx. max.) °C
°F
37.0
14.8
82
180
37.0
14.8
11.4
2.5
62
144
Domestic Hot Water
Heat Input kW
(Gross) Btu/h
Output to Water (modulating) kW
Btu/h
BurnerPressure mbar
Settings in wg
Gas Supply Pressure (LPG) mbar
in wg
Gas Rate (LPG) m³/h
ft³/h
Flow Rate at 35°C Rise L/min
G.P.M.
Outlet Water Temp. (Approx. max.) °C
°F
Alpha CB24, CB24X and SY9-24 Alpha CB24, CB24X
Alpha CB28 and CB28X Alpha CB28 and CB28X
3
CB24/28 and SY24 LPG Supplement
3 BOILER LOCATION
The boiler must not be installed in a room or internal space below ground level, e.g. in a basement or cellar, except where at
least one side is open to ground level.
4 INSTALLATION
In addition to the regulations and requirements stated in the Installation and Servicing instructions, the boiler must be installed
in accordance with BS 5482:1 - The Installation of Propane Burning Appliances in Permanent Dwellings.
5 COMMISSIONING
6 PARTS LIST
Only the main burner injectors are special to Propane boilers. For other 'Short List Spare Parts', refer to the Installation and
Servicing instructions supplied with the boiler.
Propane components
Main burner injectors - CB24, CB24X and SY9-24
Main burner injectors - CB28 and CB28X
Qty.
12
14
Type
0.77 mm
0.77 mm
Alpha Part No.
1.4271
1.4271
The boiler has been tested and factory set for use with Propane gas and it should only be necessary to ensure the correct gas
supply pressure of 37 mbar is available.
2.3 GAS SUPPLY
The Alpha CB24, CB24X and SY9-24 boilers require a gas rate of 2.0 kg/h (4.4 lb/h) or 3.9 litres/h of liquid gas.
The Alpha CB28 and CB28X boilers require a gas rate of 2.4 kg/h (5.3 lb/h) or 4.7 litres/h of liquid gas.
The supply pipes must be capable of delivering this quantity of gas in addition to the demand from any other appliances in the
house. The boiler requires at least a 22 mm gas supply pipe.
The complete installation must be tested for gas soundness against leakage.
The local Propane gas supplier should be consulted, at the installation planning stage, in order to establish the availability of
an adequate supply of gas.
Installation pipes, cylinders and pressure regulators should be fitted in accordance with BS 5482:1. Bulk tank installation must
comply with the requirements of the Home Office code of practice for the storage of liquefied petroleum gas at fixed installations.
7 SERVICING
When servicing or replacing boiler components follow the procedures as described in the main Installation and Servicing
instructions supplied with the boiler.
Remembering the parts special for Propane boilers and the burner pressures special to Propane boilers given in this leaflet.
DETAILS OF BOILER INSTALLATION
Date of Installation: ......................................................................
Name of Installer: .........................................................................
Address: ......................................................................................
....................................................................................................
....................................................................................................
....................................................................................................
Postcode: ....................................................................................
Telephone No: .............................................................................
Boiler Serial Number: (LPG) ........................................................
(see inside controls panel hinged cover)
05/03/D157
Part No. 1.019058
Leaflet compiled and designed by Publications 2000 - Tel: (01670) 356211
These instructions have been carefully prepared but we reserve the right to
alter the specification at any time in the interest of product improvement.
© Alpha Therm Limited 2003.
Alpha Therm Limited.
NepicarHouse,LondonRoad,WrothamHeath,
Sevenoaks, Kent TN15 7RS
Tel: 0870 3001 964
email: info@alphatherm.co.uk
website: www.alpha-innovation.co.uk
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