User instructions Wall hung RSF gas fired condensing regular boiler Greenstar Ri Compact ErP For open vented and sealed central heating systems and indirect mains fed domestic hot water These appliances are for use with : Natural Gas or L.P.G. (Cat. II 2H 3P type C13, C33 & C53) Natural Gas L.P.G. Model GC Number 27Ri Compact ErP 41-406-54 30Ri Compact ErP 41-406-56 27Ri Compact ErP 41-406-55 30Ri Compact ErP 41-406-57 6720643358-00.
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 Key to symbols and safety instructions . . . . . . . . . . . . 4 1.1 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . 4 2 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.1 Energy efficiency . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.3 Benchmark standard . . . . . . . . . .
Key to symbols and safety instructions 1 Key to symbols and safety instructions 1.1 Key to symbols Warnings Safety instructions in this document are framed and identified by a warning triangle which is printed on a grey background. The following keywords are defined and can be used in this document: • NOTICE indicates a situation that could result in damage to property or equipment. • CAUTION indicates a situation that could result in minor to medium injury.
General information Combustible and corrosive materials: Chemically aggressive substances can corrode the appliance and invalidate any guarantee. • Any misuse or unauthorised modifications to the appliance, flue or associated accessories and heating system will invalidate the guarantee. • Do not modify the appliance or flue system in any way. Worcester, Bosch Group accepts no liability arising from any such actions. This does not affect your statutory rights.
Controls 3 Controls ▶ To gain access to the boiler controls pull the flap down using the curved flap handle. 1 2 4 3 5 Fig. 1 reset max 6720648729-01.1Wo min Basic boiler controls 1 Flame/Burner symbol Boiler Controls 2 Flame/Burner ON indicator (green) 3 Operational/fault indicator (blue). The blue light is ON when the boiler is in an operational mode. It will also flash to indicate a fault.
Controls 3.1 Operating the boiler 6720648729-02.1Wo 3.1.1 Setting the boiler flow temperature 1. Turn the central heating temperature control knob to the desired level. The temperature range available is between 30 and 82°C. This not the room temperature but the flow temperature through the radiators. The “click” point provides guidance for the maximum temperature setting for optimum energy efficiency. 2.
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 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 will have fitted a pressure gauge and filling loop so that the system can be monitored and adjusted as necessary.
System pressure 4.3 External filling loop NOTICE: External filling loops ▶ If the filling loop does not look like the one shown in the figure below or you cannot find your filling loop, contact your installer. ▶ To comply with Water Authority regulations you must disconnect the external filling loop after repressurisation. Once the external filling loop has been located, follow the instructions for re-pressurising the system. 1. Unscrew blanking cap. 2. Attach the hose to the valves, screw on hand-tight.
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. ▶ Do not restrict this space with the addition of cupboards, shelves etc. next to the boiler. NOTICE: Combustible and corrosive materials: Chemically aggressive substances can corrode the appliance and invalidate any guarantee.
Maintaining your boiler 6 Maintaining your boiler Your new Greenstar gas-fired regular 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 guarantee period.
Fault finding 7 Fault finding In the event that the boiler stops functioning or does not perform as expected, you can carry out a few simple checks. These checks are some of the most common causes of apparent faults and are listed in the table below. Should the problem persist or other alert codes are displayed, then it will be necessary to contact Worcester, Bosch Group.
Fault finding 7.1 Boiler reset In the event of a fault the operation/fault indicator will flash. To reset the boiler: 1. Turn the Central heating control knob fully anti-clockwise to the reset position and hold there for five seconds and then return the control knob to back to the original setting. 2. When the boiler resets, the blue operation/fault light will no longer be flashing and the boiler will function normally, dependant on the room thermostat and optional programmer. reset Fig.
Fault finding 7.2 Extreme cold weather In some instances where the condensate pipe work is run externally or in an unheated area, such as a garage, the condensate pipe work can be at risk of freezing, even if well insulated. A frozen/blocked condensate pipe will cause the boiler to shut down. WARNING: Falling hazard! Failure to follow this guidance may result in personal injury. ▶ Only attempt to thaw a condense pipe that is at ground level, and that is easily accessible.
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 appliance provides a high level of comfort whilst keeping gas consumption low and so minimising the environmental impact. The gas supply to the appliance‘s burner is regulated according to the demand for heat. The appliance operates with a low flame if the demand for heat reduces. The technical term for this process is modulating control.
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.
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 bled by releasing air through the bleed screw at the top of the radiator. Ask your installer to show you how this is done. If this boiler is fitted to a sealed system and water leaks are found or if excessive bleeding is required, then a service engineer must be contacted to inspect the installation and rectify any fault.
Glossary Greenstar Ri Compact ErP - 6 720 813 339 (2014/09) 19
WORCESTER, BOSCH GROUP: Worcester, Bosch Group Cotswold Way, Warndon, Worcester WR4 9SW. Tel. 0330 123 9559 Worcester, Bosch Group is a brand name of Bosch Thermotechnology Ltd. worcester-bosch.co.
