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Alpha CD13R, 18R, 24R - Contents/Introduction
CONTENTS
1 Introduction ....................................... 2
2 Technical data................................... 3
3 General boiler information.................. 6
4 Installation ......................................... 12
5 Commissioning ................................. 18
6 Boiler operation ................................. 20
7 Routine servicing ............................... 21
8 Component replacement ................... 23
9 Wiring diagrams ................................ 27
10 Fault finding ...................................... 29
11 Short parts list ................................... 32
12 Benchmark Checklist ........................ 33
13 Service record ................................... 34
The Alpha CD Regular range of high efficiency condensing boilers are wall mounted, fan assisted room-sealed boilers. The
burner is lit electronically and the heat output is controlled by a modulating fan and gas valve.
The boilers provide heating only for open vented systems and with the addition of a sealed system kit for sealed central
heating systems.
The boilers are designed for use with a fully pumped open vented or sealed and pressurised central heating system using only
Natural gas.
The boiler CD13R is suitable for central heating loads of between 5.4 and 13.1 kW (18 400 and 44 700 Btu/h).
The boiler CD18R is suitable for central heating loads of between 5.4 and 19.6 kW (18 400 and 66 800 Btu/h).
The boiler CD24R is suitable for central heating loads of between 6.5 and 25.6 kW (22 200 and 87 300 Btu/h).
The boilers are rated to the SEDBUK efficiency band A and have a NOx class 5 rating.
IMPORTANT
It is the law that all gas appliances are installed by a competent person, ie CORGI registered personnel, in accordance with
the following recommendations:-
Current Gas Safety (Installation and Use) Regulations
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
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 5440:1:2008 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 boilers
BS 6891:1998 Gas installation
BS 7593:2006 Code of Practice for treatment of water in heating systems
BS 7671:2001 Requirements for electrical installations, IEE Wiring Regulations
Reference should also be made to the DEFRA document 'Guide to condensing boiler installation assessment procedure for
dwellings'
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.
Notes: 1. Ensure that the Benchmark Checklist has been completed after the boiler has been installed and commissioned.
2. Ensure the appliance has been supplied with an Alpha CD flue system.
1 INTRODUCTION
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