USER INSTRUCTIONS WALL HUNG RSF GAS FIRED CONDENSING REGULAR BOILER Greenstar Ri Compact 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) Model GC Number Natural Gas 27Ri Compact 41-406-17 30Ri Compact 41-406-19 L.P.G.
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 Symbols and safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1 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. 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. • CAUTION indicates possible personal injury.
SYMBOLS AND SAFETY PRECAUTIONS 1.2 SAFETY PRECAUTIONS IF YOU SMELL GAS A gas leak could potentially cause an explosion. If you smell gas, observe the following rules. ▶ Prevent flames or sparks: – Do not smoke, use a lighter or strike matches. – Do not operate any electrical switches or unplug any equipment. – Do not use the telephone or ring doorbells. ▶ Turn off the gas at the meter or regular. ▶ Open windows and doors. ▶ Warn your neighbours and leave the building.
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. • 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 ▶ 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 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.
CONTROLS 3.1.4 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.
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. 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. 3. Turn the handle/screwdriver slot through 90° to open the valves. 4.
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. 870mm 170/210mm*** 600mm** 5mm 5mm 200mm 400mm Fig. 6 * 290mm 6720646610-62.
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. Problem Cause Remedy Operation/fault light (blue) flashing No gas supply/low gas supply pressure ▶ Contact your gas supplier.
FAULT FINDING 7.1 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 boiler provides a high level of comfort whilst keeping gas consumption and environmental 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.
YOUR GUARANTEE 10 YOUR GUARANTEE This boiler has a guarantee 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 11 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.
ENVIRONMENT / DISPOSAL 12 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.
WORCESTER, 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. worcester-bosch.co.uk Document No.
