CONTENTS 1 Introduction ........................................3 2 Safety symbols ..................................4 3 Technical data ...................................5 4 General boiler information .................10 5 Installation .........................................17 6 Commissioning ..................................26 7 Routine servicing ...............................35 8 Component replacement ...................41 9 Wiring diagram ..................................46 10 Error codes and fault finding..............47 11 Short parts list ...................................50 12 Energy classification ..........................51 Benchmark Checklist .........................58 Service Record ..................................59 1 INTRODUCTION The E-Tec 28 and 33 are wall mounted, room sealed, fan assisted, high efficiency, condensing boilers.
The burner is lit electronically and the heat output is controlled by a modulating fan and gas valve. The boiler is supplied with a pump, pressure relief valve, expansion vessel and pressure gauge fully assembled and tested. It is designed for use with a fully pumped, sealed and pressurised central heating system. The E-Tec 28 and 33 are combination boilers providing both central heating and domestic hot water at mains pressure. IMPORTANT Failure to install and commission this appliance in compliance with the manufacturer's instructions may invalidate the warranty.
It is the law that all gas appliances are installed by a competent person, ie Gas Safe 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 L26. Building Standards (Scotland) (Consolidation) Regulations issued by the Scottish Development Department UK Water Regulations/Byelaws (Scotland) 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 ........................Flueing and Ventilation Requirements BS 5440-2: 2009 ........................Installation and Maintenance of Flues and Ventilation BS 5546: 2010 ...........................Specification for Water Heating Appliances BS 6798: 2009 ...........................Specification for Installation gas fired boilers up to 70 kW BS 6891: 2005 + A2:
2008 .........Installation of low pressure Gas Pipework IGEM/UP/2 ...............................Installation of pipework IGEM/UP/4 ................................Commissioning of gas fired plant IGE/UP/10 .................................Installation of Flued gas appliances IGEM/UP/16 ..............................Design for natural gas installations IGE/UP/1 and 1B .......................Strength Testing and tightness testing Natural Gas Installations Reference should also be made to any other standards and requirements relating to the installation depending on the location and use.
Reference should be made to DEFRA document 'Guide to condensing boiler installation assessment procedures 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 IPX5D, ie degree of protection against moisture. This appliance contains no asbestos and no substances have been used in the construction process that contravene the COSHH Regulations (Control of Substances Hazardous to Health). 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. Any modifications to the appliance not explicitly indicated in this manual is forbidden. Failure to comply with the installation instructions implies personal responsibility and may invalidate the warranty. Notes: 1. Ensure that the Benchmark Checklist has been completed after the boiler has been installed and commissioned. 2. It is the law that all domestic boiler installations are registered by the installer through the Gas Safe Notification Scheme. 3. The boiler must only be used with Alpha CD condensing flue components.
Propane Gas (LPG) - In addition to the regulations and requirements stated, the boiler must be installed in accordance with BS 5482:1 - The Installation of Propane Burning Appliances in Permanent Dwellings. Alpha E-Tec 28 and 33 - Contents/Introduction 3