2
Alpha CB50 - Contents/Introduction
CONTENTS
1
Introduction ....................................... 2
2
Technical data ................................... 3
3
General boiler information .................. 6
4
Installation ......................................... 12
5
Commissioning ................................. 17
6
Boiler operation ................................. 19
7
Routine servicing ............................... 20
8
Component replacement ................... 22
9
Wiring diagrams ................................ 29
10 Fault finding ...................................... 31
11 Short parts list ................................... 35
12 Service history .................................. 36
The Alpha CB50 boiler is a wall mounted, fan assisted room-sealed combination boiler, incorporating a 57 litre unvented hot
water storage cylinder. Heat output is controlled by a modulating gas valve, with fully automatic direct burner ignition.
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 Natural Gas.
The boiler is supplied with a pump, diverter valve, pressure relief valve, expansion vessel and pressure gauge fully assembled
and tested.
As supplied, the boiler will automatically modulate to provide central heating outputs between 10.5 and 28.0 kW (35 800 and
95 550 Btu/h).
The maximum output available for domestic hot water is 28.0 kW (95 550 Btu/h) and provides hot water at temperatures of up
to 65°C and flow rates of up to 20 litres/min (4.4 gal/min).
IMPORTANT
This boiler has been approved to the Building Regulations for unvented hot water storage systems and the Local Authority
must be notified of the intention to install. Therefore the installation must be carried out by a person competent to install
unvented hot water systems.
It is the law that all gas appliances are installed by a competent person, ie CORGI registered personnel, in accordance with
the following recommendations:-
Gas Safety (Installation and Use) Regulations 1984 (as amended)
All current Building Regulations issued by the Department of the Environment, i.e. Approved Document L1
Building Standards (Scotland) (Consolidation) Regulations issued by the Scottish Development Department
Local Water Bye Laws
Health & Safety Document No. 635 (The Electricity At Work Regulations 1989)
The installation should also be in accordance with the following British Standard Codes of Practice:-
BS 5440:1:2000
Flues
BS 5449:1990
Forced circulation hot water systems
BS 5546:2000
Installation of hot water supplies for domestic purposes
BS 6700:1997
Design, installation, testing and maintenance of services supplying water
BS 6798:2000
Installation of gas fired hot water boilers
BS 6891:1998
Gas installation
BS 7593:1992
Code of Practice for treatment of water in heating systems
BS 7671:2001
Requirements for electrical installations, IEE Wiring Regulations
If installation is in a timber framed building, refer to the Institute of Gas Engineers document IGE/UP/7.
This appliance meets the requirements of IPX4D, ie degree of protection against moisture.
Failure to install this appliance correctly could lead to prosecution. It is in your own interest and that of safety to ensure that the
law is complied with.
Manufacturer's instructions must NOT be taken in anyway as over-riding statutory obligations.
Note: Ensure that the Benchmark Log Book has been completed after the boiler has been installed and commissioned.
Notes: 1. Prior to installation ensure the appliance is stored upright in dry conditions and is transported in an upright position.
2. Ensure the appliance has been supplied with the unvented package and flue system.
1
INTRODUCTION
Содержание Alpha CB50 Boiler
Страница 29: ...29 9 WIRING DIAGRAMS 9 1 ILLUSTRATED WIRING DIAGRAM Alpha CB50 Wiring Diagrams ...
Страница 30: ...30 9 2 FUNCTIONAL FLOW WIRING DIAGRAM Alpha CB50 Wiring Diagrams ...
Страница 32: ...32 Alpha CB50 Fault Finding 10 3 DOMESTIC HOT WATER Follow operational sequence ...
Страница 33: ...33 Alpha CB50 Fault Finding 10 4 FAULT FINDING SOLUTIONS A to F ...
Страница 34: ...34 Alpha CB50 Fault Finding 10 5 FAULT FINDING SOLUTION SECTIONS G to L ...