- Worcester Bosch
Contents
1. WARNING SYMBOLS Safety instructions in this document are framed and identified by a N warning triangle which is printed on a grey background Electrical hazards are identified by a lightning symbol surrounded by a warning triangle Signal words indicate the seriousness of the hazard in terms of the consequences of not following the safety instructions NOTICE indicates possible damage to property or equipment but where there is no risk of personal injury e CAUTION indicates possible personal injury WARNING indicates possible severe personal injury DANGER indicates possible risk to life IMPORTANT INFORMATION personal injury or material losses and are identified by the symbol shown on the left il Notes contain important information in cases where there is no risk of They are bordered by horizontal lines above and below the text ADDITIONAL SYMBOLS Symbol Meaning gt a step in an action sequence gt a reference to a related part in the document or to other related documents a list entry a list entry second level Tab 1 Symbols 4 6 720 644 865a 2010 10 CANORCESTER Bosch Group SYMBOLS AND SAFETY PRECAUTIONS 1 2 SAFETY PRECAUTIONS IF YOU SMELL GAS Callthe National Gas Emergency Service on 0800 111 999 Extinguish any naked flames Do not smoke or strike matches Do not turn electrical switches on or off Open doors and windows Keep pe2. If the top of a radiator is at a lower temperature than the bottom then it should be vented by releasing air through the venting screw at the top of the radiator Ask your installer to show you how this is done This boiler may be fitted to a sealed system Should water leaks be found or if excessive venting is required then a service engineer must be contacted to inspect the installation and rectify any fault Only additives that are compatible with aluminium may be used in the system Any incompatible additive used will invalidate the guarantee Pluming and Condensate drain This is a condensing boiler and the flue terminal will at times give out a plume of water vapour This is quite normal The boiler produces condensate which is discharged regularly by a syphon within the boiler via a plastic pipe to a drain This pipe must not be blocked or altered in any way Room thermostat programmer A room thermostat programmer must be fitted to control the central heating This controls the times and temperatures of the central heating preventing the boiler from firing unnecessarily Refer to the instructions supplied with the thermostat and programmer for further information Thermostatic radiator valves Thermostatic radiator valves must be fitted in sleeping accommodation It is recommended that this type of valve is fitted to all but one of the radiators The remaining radiator where the room thermostat is located must be uncontrolle
3. a competent qualified person such as a Worcester service engineer or other Gas Safe registered engineer Always use original spares to help maintain the economy safety and reliability of the boiler and have the Service Record completed in the Benchmark Checklist The completed Benchmark Checklist will be required in the event of any warranty work and may be required by the local Building Control Inspector BENCHMARK STANDARD The Benchmark initiative is a code of practice to encourage the correct f enchmari installation commissioning and servicing of domestic central heating INLEGTNE MARK boilers and system equipment THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC P m a o HEATING AND HOT WATER SYSTEMS A log book is dispatched with every boiler This is a vital document that needs to be completed by the installer at the time of installation It confirms that the boiler has been installed and commissioned according to the manufacturers instructions The log book provides space for the recording of regular servicing of the boiler system and this can become a valuable document when for example the householder wishes to sell the property The log book will show a potential purchaser that the heating system has received regular professional attention during its lifetime The Benchmark initiative aims to Raise standards among professional installers Build and maintain high safe
4. parts and labour guarantee backed up by Worcester Total Cover an optional complete maintenance scheme to keep your boiler operating at peak condition and efficiency 2 6 720 644 865a 2010 10 I WORCESTER Bosch Group CONTENTS CONTENTS Symbols and safety precautions 0 55 4 Explanation of symbols 0 000 cece ees 4 1 2 Safety precautions cc cece eee 5 2 General Information 0 00 cence eee eee 6 3 Controls ssisirrrrisrirrest rerien beeen en 7 3 1 Operating the boiler 0 ee 7 3 1 1 Switching the central heating ON OFF 8 3 1 2 Boiler frost protection 0 eee eee eee 8 3 1 3 Boiler reset 0 0 eee 9 4 System Pressure 0200eeeee eee eee eeee 10 4 1 Open vented heating systems 05 10 4 2 Sealed heating systems 00 00000 10 4 3 External filling loop 00 0 11 5 Service Clearances ccccceueneneeeenee 12 6 Maintaining your Boiler 2 025055 12 7 Fault Finding 0 0ecee cece eee nun 13 8 Fault or Breakdown 0eceeee eee eeneee 15 9 TIPS ON ENERGY SAVING 00cceeeeeee 16 10 Environment disposal 2 0 02ee2005 17 11 Your Guarantee cece eee 18 12 Glossary orei cece eee eee 19 WORCESTER 6 720 644 865a 2010 10 3 Bosch Group SYMBOLS AND SAFETY PRECAUTIONS 1 SYMBOLS AND SAFETY PRECAUTIONS 1 1 EXPLANATION OF SYMBOLS
5. USER INSTRUCTIONS WALL HUNG RSF GAS FIRED CONDENSING REGULAR BOILER GREENSTAR Ri 6720644865 00 1Wo COLLECTIVE THE MARK OF QUALITY FOR THE INSTALLATION OMI ING OF DOMESTIC G HEATING AND HOT WATER SYSTEMS WORCESTER Bosch Group 6 720 644 685a 2010 10 PREFACE PREFACE PLEASE READ THESE INSTRUCTIONS CAREFULLY These instructions are applicable to the Worcester Bosch Group boiler model stated on the front cover only These instructions apply in the UK IE only and must be followed except for any statutory obligation After installation please leave this User instruction Manual Installation Commissioning and Servicing Instructions and completed Benchmark Checklist with the user DEDICATED TO HEATING COMFORT Thank you for purchasing a Greenstar gas fired condensing combination boiler manufactured by Worcester Bosch Group The company prides itself on manufacturing boilers to the strictest quality control standards throughout every stage of production Worcester Bosch group has led the field in innovative boiler design and performance for almost 50 years This heritage means all our products are of exceptional quality and proven reliability The Greenstar range in particular is extremely energy efficient offering you economical running costs and value for money It sits in SEDBUK Band A and is therefore amongst the top energy rated boilers available There is also the reassurance of our no nonsense 2 years
6. age it can be at risk of freezing even if insulated A frozen condensate pipe will cause the boiler to shut down WARNING Falling hazard A Failure to follow this guidance can result in personal injury Only attempt to thaw a condense pipe that is at ground level which is easily accessible Never attempt to thaw a condense pipe which is at height CAUTION Pipe damage N DO NOT use boiling water to thaw the condensate pipe If the condensate pipe has frozen Locate the blockage It is likely that the pipe is frozen at the most exposed point external to the building or where there is some obstruction to flow This could be the open end of the pipe at a bend or elbow or where there is a dip in the pipe in which condensate can collect The location of the blockage should be identified as closely as possible before taking further action Thaw the frozen pipe The pipe can be thawed by applying a hot water bottle a microwaveable heating pack the sort used for muscular aches and pains or a cloth soaked in hot water to the exterior of the pipe close to the point of blockage Hot water can also be poured onto the pipe from a watering can or similar container Once the pipe has been thawed the boiler must be reset Turn the Central heating temperature knob anticlockwise to the RESET position and hold for approximately five seconds and then turn the knob back to the original temperature set
7. d and left open Pump over run function After the boiler has finished a demand for central heating or hot water the system pump continues to run for three minutes to dissipate the heat from within the boiler Pump anti seizure If there has been no heating demand for 24 hours the boiler will run the system pump for a few seconds to reduce the possibility of pump seizure during long periods of inactivity SEDBUK Seasonal Efficiency of Domestic Boilers in the UK WORCESTER 6 720 644 865a 2010 10 19 Bosch Group Worcester Bosch Group Cotswold Way Warndon Worcester WR4 9SW Tel 0844 892 9900 Worcester Bosch Group is a brand name of Bosch Thermotechnology Ltd 6 720 644 865a 2010 10 WORCESTER BOSCH GROUP TECHNICAL SUPPORT 0844 892 3366 APPOINTMENTS 0844 892 3000 WEBSITE worcester bosch co uk L WORCESTER Bosch Group
8. er to condense as much as possible for the central heating system The temperature of each room can be set individually except primary room with the room thermostat using the thermostatic radiator valves ROOM THERMOSTATS Reducing the setting of the room thermostat by 1 C can reduce fuel consumption by up to 10 NEW CONTROL SYSTEMS Upgrade your heating control system if necessary with the latest equipment available The minimum level of control is a programmer interlocking room thermostat and thermostatic radiator valves ROOF INSULATION Around 30 of the heat loss from a property is through the roof Replace any old insulation with new insulation preferably of around 200 mm thickness or more WINDOW FRAMES Single glazed windows particularly those with steel frames can lose a great deal of heat Consideration should be given to replacement with PVCu or wooden framed double glazed units RADIATORS If a radiator is sited underneath a window its performance will be affected if the curtains are allowed to drape over the radiator Shelves fitted above or in front of the radiator should also be avoided It is advisable to manually adjust all thermostatic radiator valves every 2 3 months to prevent them sticking Ensure radiator valves are correctly set and not damaged 16 6 720 644 865a 2010 10 I WORCESTER Bosch Group ENVIRONMENT DISPOSAL DRAUGHTS Try to ensure that draughts around doors windows letterb
9. ing Instructions 12 6 720 644 865a 2010 10 I WORCESTER Bosch Group FAULT FINDING 7 FAULT FINDING If a boiler fault occurs please read the following page thoroughly before contacting Worcester Bosch Group Problem Cause Remedy Desired room temperature is Thermostatic radiator valve s gt Increase thermostatic not reached set too low radiator valve setting s Temperature control for Increase central heating central heating flow on boiler flow temperature control set too low setting Air trapped in heating system Bleed radiators and recharge heating system Desired room temperature Radiators are too hot Turn down thermostatic exceeded by large amount radiator valves room thermostat Reduce central heating temperature by turning down the Central Heating control on boiler Heating stays on for too long Clock is incorrectly set Check setting and adjust No ON OFF indicator Momentary power failure gt Switch off boiler at master switch wait a few seconds then switch on again Hot water temperature too Cylinder thermostat set too Increase cylinder low low thermostat Hot water temperature too Cylinder thermostat set too Reduce cylinder thermostat high high Tab 3 WORCESTER Bosch Group 6 720 644 865a 2010 10 13 FAULT FINDING EXTREME COLD WEATHER In instances where the condensate pipe work is run external or in an unheated area such as a gar
10. ll have fitted a pressure gauge and filling loop so that the system pressure can be monitored and adjusted as necessary Your installer will show you how to use the filling loop and advise you of the minimum and maximum pressure indicated on the pressure gauge Check regularly that the pressure is maintained 1 5 bar 1bar N oe P Min 5 4 p 6720643356 11 1Wo Fig 5 Optimum pressure when cold area A Contact your installer or maintenance engineer if a permanent significant decrease in pressure is indicated on the pressure gauge The filling method will be an external filling loop fitted valves and flexible hose 10 6 720 644 865a 2010 10 I WORCESTER Bosch Group SYSTEM PRESSURE 4 3 EXTERNAL FILLING LOOP Once the external filling loop has been located follow instructions for re pressurising 1 Un screw blanking cap 2 Attach hose and screw on hand tight to valve 3 Turn the handle screwdriver slot point 90 to open the valves 4 The handle screwdriver slot point will be in line with the valves TF I I a 4 M j e Sg 0 13 Dh gr ON KO rr NNW ORTEN RU 6720643356 12 1Wo Fig 6 External filling loop 5 When the pressure reaches between the 1 and 1 5 bar marks turn the handle screwdriver slot point back to close it 6 Remove ho
11. ople away from the affected area VESV VI YY Turn off the gas control valve at the meter BOILER OPERATION This boiler must only be operated by a responsible adult who has been instructed in understands and is aware of the boiler s operating conditions and effects COMBUSTIBLE AND CORROSIVE MATERIALS Chemically aggressive substances can corrode the boiler and invalidate any warranty Do not store or use any combustible materials paper thinners paints etc inside or within the vicinity of the boiler FITTINGS AND MODIFICATIONS Only a competent engineer in accordance with the Gas Safety Installation and Use Regulations can remove the outer case and carry out any work Do not remove the outer casing Any misuse or unauthorised modifications to the boiler flue or associated components and system will invalidate the warranty gt Do not modify the boiler or flue system in any way Worcester Bosch Group accepts no liability arising from any such actions This does not affect your statutory rights WORCESTER 6 720 644 865a 2010 10 5 Bosch Group GENERAL INFORMATION 2 GENERAL INFORMATION SERVICING Checklist after each service The Benchmark Checklist and service interval record can be il Ensure that the service engineer completes the Service Record in the Benchmark found at the rear of the Installation Commissioning and Servicing Instructions The boiler must be serviced regularly by
12. oxes and keyholes etc are reduced by using a suitable draught excluder WARNING AIR VENTS Do not block or seal any air vents that are installed to ensure that the central heating boiler operates safely CURTAINS Lined curtains or heavier full length curtains can provide excellent insulation However always ensure that the curtains do not drape over radiators 10 ENVIRONMENT DISPOSAL Environmental protection is a fundamental corporate strategy of the Bosch Group The quality of our products their economy and environmental safety are all of equal importance to us and all environmental protection legislation and regulations are strictly observed We use the best possible technology and materials for protecting the environment taking account of economic considerations PACKAGING We participate in the recycling programmes of the countries in which our products are sold to ensure optimum recycling All of our packaging materials are environmentally compatible and can be recycled USED APPLIANCES il All Greenstar gas boilers are 100 recycleable The various assemblies can be easily dismantled and synthetic materials are marked accordingly Assemblies can therefore be sorted by composition and passed on for recycling WORCESTER 6 720 644 865a 2010 10 17 Bosch Group YOUR GUARANTEE 11 YOUR GUARANTEE This boiler is guaranteed against faulty materials or workmanship for a period of 2 year
13. s from the date of installation subject to the following terms and conditions During the period of this guarantee any components of the boiler which are proven to be faulty or defective in manufacture will be exchanged or repaired free of charge by Bosch Thermotechnology Ltd e The householder may be asked to prove the date of installation that the boiler was correctly commissioned and where appropriate the first year s service has been carried out to the satisfaction of Bosch Thermotechnology Ltd when requested These should be part of the Benchmark Checklist e The boiler has been used only for the normal domestic purposes for which it was designed This guarantee does not affect your statutory rights GUARANTEE REGISTRATION Returning the card will register you as the owner of your new gas boiler and will assist us in maintaining an effective and efficient customer service by establishing a reference and permanent record for your boiler FOR YOUR OWN RECORD Please ensure that the Benchmark Checklist has been completed by your installer or service engineer Model Serial No 2 Type size Date of installation Name of Installer Telephone number of Installer Tab 4 1 See identity label on control panel flap or Benchmark Checklist 18 6 720 644 865a 2010 10 CANORCESTER Bosch Group GLOSSARY 12 GLOSSARY Central heating systems All radiators must be heated at an even rate
14. se and replace blanking cap WORCESTER 6 720 644 865a 2010 10 11 Bosch Group SERVICE CLEARANCES 5 SERVICE CLEARANCES Your installer will have provided adequate space around the boiler for safety and servicing access CAUTION Restricted space V N The boiler may overheat gt Do not restrict this space with the addition of cupboards shelves etc next to the boiler lt 430mm n above elbow i mg 600 mm 6720643356 01 1Wo 200 mm Fig 7 Service clearances 6 MAINTAINING YOUR BOILER Your new gas fired boiler represents a long term investment in a reliable high quality product In order to realise its maximum working life and to ensure it continues to operate at peak efficiency and performance it is essential that your boiler receives regular servicing and maintenance checks from a competent person beyond the initial 2 year guarantee period If you would like to know more about a Worcester Bosch Group service contract please tick the appropriate box on your warranty registration card If your gas fired boiler should fail to operate correctly or requires servicing please contact Worcester Bosch Group Appointments Team see rear cover for details Details of the boiler including the Gas Council number can be found under the controls covers flap on the boiler The Gas Council number is also listed on the front cover of your Installation Commissioning and Servic
15. section of this guide In the event of a boiler fault or breakdown please contact Worcester Bosch Group appointments team on 0844 892 3000 Your advisor will arrange for an engineer to call with the minimum of delay under normal circumstances this will be from 1 3 working days excluding weekends for priority breakdown situations no hot water and or heating AWWORCESTER 6 720 644 865a 2010 10 15 Bosch Group TIPS ON ENERGY SAVING 9 TIPS ON ENERGY SAVING HEATING ECONOMICALLY The boiler provides a high level of comfort whilst keeping gas consumption and the environment effects as low as possible The gas supply to the burner is controlled according to the level of demand for heat The boiler operates with a low flame if the demand for heat reduces The technical term for this process is modulating control Modulating control reduces temperature fluctuations and provides an even distribution of heat throughout the home This means that the boiler may stay on for relatively long periods of time but will use less gas than a boiler that continually switches on and off CENTRAL HEATING SYSTEMS WITH ROOM THERMOSTAT THERMOSTATIC RADIATOR VALVES With modern heating systems set around a 20 C heat loss the optimum setting for a condensing boiler will be approximately between one and two on the central heating temperature control The system must be balanced correctly and the radiators may need upgrading This allows the boil
16. temperature up to 12 C to avoid the possibility of the system freezing This process will be repeated until such time that the boiler temperature does not drop below 5 C 8 6 720 644 865a 2010 10 WORCESTER Bosch Group CONTROLS 3 1 3 BOILER RESET In the event of a fault the blue mains indicator light will flash if there is a fault To reset the boiler Turn the Central heating temperature knob anticlockwise to the RESET position and hold for approximately five seconds and then turn the knob back to the original temperature setting When the boiler resets the mains indicator will no longer be flashing and the boiler will function normally dependant on the programmer and room thermostat settings A reset fault condition will exist If the electrical power to the boiler has been interrupted Reset the boiler as described above 6720644865 05 1Wo Fig 4 Reset button and mains light If the fault remains and cannot be cleared by resetting the boiler contact Worcester Bosch Group for assistance AWWORCESTER 6 720 644 865a 2010 10 9 Bosch Group SYSTEM PRESSURE 4 SYSTEM PRESSURE 4 1 OPEN VENTED HEATING SYSTEMS If the boiler is fitted to an open vented system that is a system with a header tank the system pressure will be maintained automatically 4 2 SEALED HEATING SYSTEMS If this boiler is fitted to a sealed heating system the system will be pre pressurised Your installer wi
17. ting Wait two to three minutes for the boiler to restart gt If the boiler does not restart contact Worcester s Technical Support Team 0844 892 3366 for assistance Contact your installer in order to find a permanent solution to the problem 14 6 720 644 865a 2010 10 CANORCESTER Bosch Group FAULT OR BREAKDOWN 8 FAULT OR BREAKDOWN This boiler is supported in the UK and Eire by Worcester Bosch Group Specialist Service Engineers are available to attend a breakdown occurring on this boiler Invoices for attendance and repair work carried out on this boiler by any third party will il not be accepted No charge will be made for parts and or labour providing A boiler fault is found and the appliance has been installed within the past 24 months Reasonable evidence of this must be supplied on request i e the Benchmark Checklist Acall out charge will be made where The boiler has been installed for over 24 months Evidence cannot be provided that the first year service inspection has been carried out i e an entry in the Benchmark Checklist Our Field Service Engineer finds no fault with the boiler The cause of breakdown is misuse or with other parts of your plumbing heating system or with equipment not supplied by Worcester Bosch Group TECHNICAL SUPPORT No boiler fault is found on over 30 of all service calls il In the case of a suspected fault refer to the fault finding
18. ty standards in the industry Improve customer satisfaction levels Make a contribution to the nation s commitment to Climate Change 6 6 720 644 865a 2010 10 CANORCESTER Bosch Group CONTROLS 3 CONTROLS a GREENSTAR Ri 6720644865 01 1Wo Fig 1 Controls 1 Mains power ON OFF knob 2 Central heating temperature control knob 3 Indicator Diagnostic light 4 Burner ON indicator light Green MAINS ON OFF Blue Tab 2 3 1 OPERATING THE BOILER SETTING THE CENTRAL HEATING TEMPERATURE 1 Turn the central heating temperature control knob 2 to the desired level The temperatures range available is between approximately 35 to 82 C 2 The Burner indicator 4 will illuminate to show that the boiler is running GREENSTARRi S 6720644865 03 1Wo Fig 2 Central heating temperature control WORCESTER 6 720 644 865a 2010 10 7 Bosch Group CONTROLS 3 1 1 SWITCHING THE CENTRAL HEATING ON OFF 1 Turn the MAINS POWER knob to 1 to switch ON the central heating 2 Turn the MAINS POWER knob to 0 to switch OFF the central heating 6720644865 02 1Wo Fig 3 Switch off central heating 3 1 2 BOILER FROST PROTECTION If the temperature within the boiler falls below 8 C the pump will run to circulate water and prevent the system freezing If the temperature within the boiler falls below 5 C the boiler will fire periodically bringing the boiler
Download Pdf Manuals
Related Search