File name Buderus Boulter 500 24S System Boiler Service Manual.pdf7214 8900 02/2006 GB(EN)
For the installer
Servicing manual
Gas wall hung Boiler condensing Buderus 500 - 24/S Buderus 500 - 24/C Buderus 500 - 28/C
Please read thoroughly before attempting fault diagnosis
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The boiler meets the basic requirements of the appropriate standards and directives. Conformity has been substantiated by the proper documents which - together with the declaration of conformity - are filed with the manufacturer.
Subject to technical modifications! Constant development efforts may result in minor deviations in illustrations, functional steps and technical data. Updating the documentation If you have suggestions for improvement or have found discrepancies, please do not hesitate to contact us.
We reserve the right to make technical modifications
Buderus Ltd. · http://www.buderus-domestic.co.uk
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Servicing manual Gas condensing boiler Buderus 500-24/S, 500-24/C and 500-28/C · Issued 02/2006
box 1
List of contents
box 2
Preface
1 2 3 4 5 6 7 8 9
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Servicing manual user guide . . . . . . . . . . . 10 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Symptoms . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
These service instructions apply to: Buderus wall-mounted condensing gas boilers 500 - 24/S, 500 - 24/C and 500 - 28/C. Model: Type: Fuse rating: 500 28 C S C13(x), C33(x), C53(x), C73(x) GB/IE II2H3P 20 mbar, 37 mbar 1.25 Ampere slow blow
Power rating: 230 VAC, 50 Hz, IP X4D The boiler unit consists of the following components: Gas condensing boiler Maximum output is 28 kW Combination boiler (with integrated hot water supply) System boiler.
Important general instructions for use Only use the boiler in accordance with its designated use and the service instructions. Installation, maintenance and repair must be carried out by competent service engineers (e.g. CORGI registered). Only use the boiler in conjunction with the accessories and spare parts indicated in the installation, maintenance and service instructions. Other accessories and consumables may only be used if they are expressly provided for the designated use and if system performance and safety are not affected in any way. The boiler is suitable for connection to fully pumped, sealed water systems ONLY. Adequate arrangements for completely draining the system by provision of draining valves must be provided in the installation pipework. Pipework from the boiler is routed downwards as standard, but may be routed upwards behind the boiler using the wall spacing frame. Subject to technical modifications. As a resul |