USER MANUAL WALL HUNG RSF GAS FIRED CONDENSING SYSTEM BOILER GREENSTAR i SYSTEM 6720643356-00.
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.
CONTENTS CONTENTS 1 1.1 1.2 Symbols and safety precautions . . . . . . . . . . . . . . . 4 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 General Information . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 3.1 3.1.1 3.1.2 3.1.3 3.1.4 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Operating the boiler . . . . . . . . . . . . . . . . . . . . . . . .
SYMBOLS AND SAFETY PRECAUTIONS 1 SYMBOLS AND SAFETY PRECAUTIONS 1.1 EXPLANATION OF SYMBOLS WARNING SYMBOLS Safety instructions in this document are framed and identified by a 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.
SYMBOLS AND SAFETY PRECAUTIONS 1.
GENERAL INFORMATION 2 GENERAL INFORMATION SERVICING Ensure that the service engineer completes the Service Record in the Benchmark Checklist after each service. The Benchmark Checklist and service interval record can be found at the rear of the Installation, Commissioning and Servicing Instructions. B The boiler must be serviced regularly by a competent, qualified person, such as a Worcester service engineer or other Gas Safe registered engineer.
CONTROLS 3 CONTROLS B To gain access to the boiler controls push the top centre of the flap and release. 3 2 4 5 6 7 8 9 6720643356-13.1Wo 1 Fig.
CONTROLS 3.1 OPERATING THE BOILER SETTING THE CENTRAL HEATING TEMPERATURE 1. Turn the central heating temperature control knob to the desired level. Temperatures given in the figure below are approximate. 2. The Burner indicator (green) will illuminate to show that the boiler is running. 2. 3 4 1 --- 47 °C 2 --- 53 °C 3 --- 61 °C 4 --- 68 °C 5 --- 74 °C 6 --- 80 °C max Max --- 82 °C 1. Fig. 2 --- 40 °C 6 5 2 Min Central heating temperature control 3.1.
CONTROLS 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 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. 3.1.
CONTROLS 3.1.4 BOILER RESET In the event of a fault, the reset button will flash once per second and the blue mains indicator light will flash. 1. To reset the boiler press the reset button for approximately five seconds. When the boiler resets the reset button will no longer be illuminated. 2. The mains indicator will no longer be flashing. 1. reset eco 3 2 1 Fig.
SYSTEM PRESSURE 4 SYSTEM PRESSURE 4.1 SEALED HEATING SYSTEMS This boiler is fitted to a sealed heating system which is pre-pressurised. Your installer will advise you of the minimum and maximum pressure indicated on the pressure gauge. B Check regularly that the pressure is maintained. 1.5 bar Max 2 1 3 Min 0 Fig. 6 bar 4 6720643356-11.
SYSTEM PRESSURE 4.2 EXTERNAL FILLING LOOP Once the external filling loop has been located, follow the instructions for re-pressurising. 1. Unscrew 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 4. 1. 2. 4. 3. 3. 6720643356-12.1Wo Fig. 7 External filling loop 5. When the pressure reaches between the 1 and 1.
SERVICE CLEARANCES 5 SERVICE CLEARANCES Your installer will have provided adequate space around the boiler for safety and servicing access. CAUTION: Restricted space. The boiler may overheat. B Do not restrict this space with the addition of cupboards, shelves etc. next to the boiler. + 30 mm above elbow 5 mm 600 mm 200 mm Fig. 8 6720643356-01.
MAINTAINING YOUR BOILER 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.
FAULT FINDING 7 FAULT FINDING If a boiler fault occurs, please read the following page thoroughly before contacting Worcester, Bosch Group.
FAULT FINDING EXTREME COLD WEATHER In instances where the condensate pipe work is run external or in an unheated area, such as a garage, it can be at risk of freezing, even if insulated. A frozen condensate pipe will cause the boiler to shut down. WARNING: Falling hazard! Failure to follow this guidance can result in personal injury. B Only attempt to thaw a condense pipe that is at ground level, which is easily accessible. B Never attempt to thaw a condense pipe which is at height.
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 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.
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.
TIPS ON ENERGY SAVING DRAUGHTS Try to ensure that draughts around doors, windows, letterboxes and keyholes etc. are reduced by using a suitable draught excluder. WARNING: AIR VENTS B 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.
ENVIRONMENT / DISPOSAL 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.
YOUR GUARANTEE 11 YOUR GUARANTEE This boiler is guaranteed against faulty materials or workmanship for a period of 2 years 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.
GLOSSARY 12 GLOSSARY Central heating systems All radiators must be heated at an even rate. 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 is 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.
GLOSSARY 6 720 644 864a (2010/10) 23
WORCESTER, BOSCH GROUP: TECHNICAL SUPPORT: 0844 892 3366 APPOINTMENTS: SPARES: LITERATURE: 6 720 644 864a (2010/10) 01905 752571 0844 892 9800 TRAINING: 01905 752526 SALES: 01905 752640 WEBSITE: Worcester, Bosch Group Cotswold Way, Warndon, Worcester WR4 9SW. Tel. 0844 892 9900 Worcester, Bosch Group is a brand name of Bosch Thermotechnology Ltd. 0844 892 3000 worcester-bosch.co.
