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USER INSTRUCTIONS &
CUSTOMER CARE GUIDE
Greenstar 24i jju un niio or r / 28i jju un niio or r
WALL HUNG GAS-FIRED CONDENSING COMBINATION BOILER
FOR SEALED CENTRAL HEATING SYSTEMS & DOMESTIC HOT WATER
THIS BOILER IS USED WITH
NATURAL GAS OR LPG (Cat II 2H3P TYPE C13, C33 & C53)
NATURAL GAS 24i junior GC NUMBER: 47 311 86
28i junior GC NUMBER: 47 311 87
LIQUID PETROLEUM GAS 24i junior GC NUMBER: 47 311 90
28i junior GC NUMBER: 47 311 91
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CONTACT INFORMATION USER INSTRUCTIONS & CUSTOMER CARE GUIDE WORCESTER BOSCH: PLEASE READ THESE INSTRUCTIONS TECHNICAL: 08705 266241 CAREFULLY BEFORE OPERATING SERVICE: 08457 256206 YOUR BOILER LITERATURE: 01905 752556 THESE INSTRUCTIONS ARE APPLICABLE TO THE WORCESTER, SALES: 01905 752640 BOSCH GROUP BOILER MODEL(S) WEBSITE: www.worcester-bosch.co.uk STATED ON THE FRONT COVER OF THIS MANUAL ONLY AND MUST NOT BE USED WITH ANY OTHER MAKE OR MODEL OF BOILER. THE INSTRUCTIONS APPLY IN THE UK ONLY A
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CONTENTS INTRODUCTION DEDICATED TO HEATING COMFORT 1 SAFETY PRECAUTIONS 2 GENERAL NOTES 3 USING YOUR BOILER CONTROLS 6 OPERATING THE BOILER 7 Switching the boiler on/off 7 Setting the central heating temperature 7 Controlling central heating 7 Frost protection 7 Controlling domestic hot water 8 Fault condition 9 MAINTENANCE MAINTAINING YOUR BOILER 10 FAULT FINDING 11 FAULT OR BREAKDOWN 12 ENERGY SAVING TIPS ON ENERGY SAVING 13 GUARANTEE YOUR GUARANTEE 15 GUARANTEE REGISTRATION 16 Dedicated to he
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SAFETY PRECAUTIONS IF YOU SMELL GAS! DO NOT SMOKE OR STRIKE MATCHES DO NOT TURN ELECTRICAL SWITCHES ON OR OFF PUT OUT NAKED FLAMES OPEN DOORS AND WINDOWS KEEP PEOPLE AWAY FROM THE AREA AFFECTED TURN OFF THE CONTROL VALVE AT THE METER CALL YOUR GAS COMPANY 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 Do not store or
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GENERAL NOTES SERVICING The boiler must be serviced regularly by a competent, qualified person, such as a Worcester service engineer or alternatively a British Gas or other Gas Safe registered person. Always use original spares, to help maintain the economy, safety and reliability of the boiler and to have the Service Record completed in the Benchmark checklist. IMPORTANT: Ensure that the service engineer completes the Service Record in the Benchmark checklist after each service. The completed B
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GENERAL NOTES To get the best from your boiler please read these instructions carefully. SEALED HEATING SYSTEMS CLEARANCES - VENTILATED This boiler is fitted to a sealed heating COMPARTMENT system which is pre-pressurised. Your Your installer will have provided adequate installer will advise you of the minimum space around the boiler for safety and and maximum pressure which should be servicing access. Do not restrict this indicated on the pressure gauge. space with the addition of cupboards, Ch
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GENERAL NOTES BOILER CLEARANCES - + 30mm UNVENTILATED COMPARTMENT above elbow The diagram opposite shows the minimum space required to install and service the boiler inside an unventilated compartment. 200mm* ** Space required for unventilated areas with a removable door or panel. 200mm* *** 600mm clearance required to a fixed 100mm** surface for servicing. 600mm*** * The boiler must have more clearance in the unventilated compartment compared to the ventilated compartment. Two examples are sho
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CONTROLS To gain access to the boiler controls push at the top of the flap and release. 7 3 4 5 6 1. CENTRAL HEATING TEMPERATURE CONTROL 2. MAINS ON/OFF INDICATOR + FAULT DIAGNOSTIC LIGHT 3. BURNER ON INDICATOR LIGHT (GREEN) 4. ECO BUTTON (DOMESTIC HOT WATER PRE-HEAT ON/OFF) 5. FAULT RESET BUTTON 6. SYSTEM PRESSURE GAUGE 7. POSITION FOR OPTIONAL PROGRAMMER 1 2 6 WORCESTER BOSCH GREENSTAR 24i/28i Junior CONTROLS 8 716 115 661 (05/2009) PUSH USING YOUR BOILER
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OPERATING THE BOILER SWITCHING THE BOILER ON/OFF Switching on Switch on the boiler at the mains supply, the indicator light shows blue. There should be no need to switch the boiler off unless, in the unlikely event, a fault has occurred. Switching off Should you need to switch off the boiler then do so at the mains supply. The blue indicator light goes out. NOTE: When the boiler is switched off frost protection is disabled. SETTING THE TEMPERATURE Turn the temperature control knob to the desi
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OPERATING THE BOILER HOT WATER TEMPERATURE The hot water temperature is fixed at 55°C and can not be adjusted. DOMESTIC HOT WATER PRE-HEAT Pre-heat reduces the time taken to produce hot water at the tap and is controlled by the ECO button. Press and hold the ECO button to select either, not illuminated or illuminated: When the ECO button is not illuminated the boiler will be in pre- heat mode (which will reduce the time taken to produce hot water at the tap). OR When the ECO button is illuminat
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OPERATING THE BOILER FAULT CONDITION In the unlikely event of a fault occurring while the boiler is in operation: The reset button will flash once per second and the mains indicator (blue light) will flash at different speeds dependent on fault. To reset boiler press the reset button. The reset button will no longer be illuminated and the mains indicator will stop flashing. The boiler will function normally, dependent on programmer and room thermostat settings. If the electrical power to the bo
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MAINTAINING YOUR BOILER Your new Greenstar 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 ap
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FAULT FINDING This table gives information on basic operating system problems. In the unlikely event of a boiler fault please read the following page thoroughly before contacting Worcester, Bosch Group. Problem Cause Remedy Desired room Thermostatic radiator Increase thermostatic temperature is not valve(s) set too low radiator valve setting(s) reached Temperature control for Increase CH flow CH flow on boiler set too temperature control low setting Air trapped in heating Bleed radiators and sys
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FAULT OR BREAKDOWN This boiler is supported in the UK and Eire by Worcester, Bosch Group. Specially trained, Worcester, Bosch Group Service Engineers are available to attend a breakdown occurring on this boiler. No charge will be made for parts and/or labour providing: An boiler fault is found and the boiler has been installed within the past 24 months. Reasonable evidence of this must be supplied on request. i.e. the Benchmark Checklist. A call-out charge will be made where: The boiler has bee
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TIPS ON ENERGY SAVING HEATING ECONOMICALLY The boiler is designed to provide a high level of comfort while keeping gas consumption and the resulting environmental effect as low as possible. The gas supply to the burner is controlled according to the level of demand for heat. The boiler continues to operate 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 even distribution o
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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 - Do not block or seal any air vents that are installed to ensure the central heating boiler operates safely. 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
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YOUR GUARANTEE This boiler is guaranteed against faulty material or workmanship for a period of 2 years from the date of installation subject to the following terms and conditions: Your Guarantee Registration Card must be returned within 30 days for the second year of your guarantee to become valid. During the period of this guarantee any components of the unit which are proven to be faulty or defective in manufacture will be exchanged or repaired free of charge by Bosch Thermotechnology Ltd.
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GUARANTEE REGISTRATION You should complete and return the postpaid Guarantee Registration Card within 30 days of purchase. Returning the card will register you as the owner of your new Greenstar i junior boiler and will assist us in maintaining an effective and efficient customer service by establishing a reference and permanent record for your boiler. This does not affect your statutory rights. For your own record: Model Serial No. (See identity label inside boiler casing) Type / size Date of i
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NOTES WORCESTER BOSCH GREENSTAR 24i/28i Junior 8 716 115 661 (05/2009)
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USER INSTRUCTIONS & CUSTOMER CARE GUIDE Dedicated to heating comfort Worcester, Bosch Group Cotswold Way, Warndon, Worcester WR4 9SW. Tel. 01905 754624 Fax. 01905 754619 www.worcester-bosch.co.uk Worcester Bosch Group is a brand name of Bosch Thermotechnology Ltd. 8 716 115 661 (05/2009)
