Alpha Alpha CB50 Boiler User manual

Supplementary LPG Boiler
Instructions
For use with LPG (Propane) only
Leave these instructions with the User
Alpha 500E (LPG)
Wall Mounted, Fan Assisted, Room Sealed, Gas Fired
Combination Boiler with Unvented Hot Water Storage
Goldsel Road,
Swanley, Kent BR8 8EX
Fax:[phone]
ForTechnical help or for Service call ...
ALPHA HELPLINE
Tel: [phone]
0051

2500E 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 500E boiler is a wall mounted, fan assisted room-sealed combination boiler with unvented hot water storage. Heat
output is controlled by a modulating gas valve.
The boiler, providing both central heating and domestic hot water at mains pressure, is 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.
34.5
117 700
28.0
95 550
35.0
14.0
1.3
47.1
MIN.
13.2
45 000
10.4
35 500
5.8
2.32
0.51
18.0
MAX.
34.5
117 700
28.0
95 550
35.0
14.0
1.3
47.1
20.0
4.4
MIN.
13.2
45 000
10.4
35 500
5.8
2.32
0.51
18.0
1.0
0.22
Room sealed chamber
panel fitted Room sealed chamber panel fitted
Central Heating
Heat Input kW
Btu/h
Heat Output (modulating) kW
Btu/h
Burner Pressure mbar
Settings in wg
Gas Supply Pressure (LPG) mbar
in wg
Gas Rate m³/h
ft³/h
CH Water Temp. (Approx. max.) °C
°F
37.0
14.8
82
180
37.0
14.8
65
149
12.0 minutes
5.0 minutes
Domestic Hot Water
Heat Input kW
(Gross) Btu/h
Output to Water (modulating) kW
Btu/h
Burner Pressure mbar
Settings in wg
Gas Supply Pressure (LPG) mbar
in wg
Gas Rate m³/h
ft³/h
Flow Rate L/min
G.P.M.
Outlet Water Temp. (Approx. max.) °C
°F
Time to raise water storage 50°C
Reheat time for 70% of storage
2.2 GAS SUPPLY
The boiler requires 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.
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.

3
500E LPG Supplement
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
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.
6 PARTS LIST
The following parts are special to Propane boilers. For other 'Short List Spare Parts', refer to the Installation and Servicing
instructions supplied with the boiler.
Components
Main burner injectors
Gas valve spring
Conversion kit
Qty.
18
1
1
Type
0.69 mm
Honeywell
LPG
Alpha Part No.
5202840
8380380
5639260

Leaflet compiled and designed by Publications Unlimited [phone]
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 1996.
06/96/D32
Alpha Therm Limited.
Goldsel Road, Swanley, Kent BR8 8EX
Tel: [phone]
Fax: [phone]
DETAILS OF BOILER INSTALLATION
Date of Installation: ......................................................................
Name of Installer:.........................................................................
Address: ......................................................................................
....................................................................................................
....................................................................................................
....................................................................................................
Postcode: ....................................................................................
Telephone No: .............................................................................
Boiler Serial Number: (LPG) ........................................................
(see data label on inside of left hand case panel)