Worcester Greenstar 1000 GR1000W 30C NG Boiler

6721835944 (2023/08) Uk

Gr1000W 24 C Ng | Gr1000W 30 C Ng

Preface Greenstar 1000 – 6721835944 (2023/08) 2 Preface Dedicated to heating comfort. Thank you for purchasing a Worcester product. We pride ourselves on manufacturing products to the strictest quality control standards throughout every stage of production. Worcester, Bosch group has led the field in innovative product design and performance for over 50 years. This heritage means all our products are of exceptional quality and proven reliability. Our products employ the latest technologies and they are reliable, extremely energy efficient, offering you economical running costs and value for money. They are amongst the top energy rated products available. There is also the reassurance of our parts and labour guarantee. Our Customer Service team is here to help you get the best from your Worcester product throughout its lifetime. Whatever your enquiry, our specially trained team is available at our Worcester based contact centre and online via the website. For contact details see the back cover.

Table of contents 3 Greenstar 1000 – 6721835944 (2023/08) Table of contents 1 Explanation of symbols and safety instructions 1.1 Explanation of symbols Warnings In warnings, signal words at the beginning of a warning are used to indicate the type and seriousness of the ensuing risk if measures for minimising danger are not taken. The following signal words are defined and can be used in this document:

Danger

Warning

Caution

Notice

Explanation of symbols and safety instructions Greenstar 1000 – 6721835944 (2023/08) 4 1.2 General safety instructions HNotices for the target group These operating instructions are intended for the heating system operator. All instructions must be observed. Failure to comply with instructions may result in material damage and personal injury, including danger to life. ▶Read and retain the operating instructions (heat generator, heating controller, etc.) prior to operation. ▶Observe the safety instructions and warnings. ▶Operate the heat generator only with the casing fitted and closed. HDetermined use The product may only be used for the heating of boiler water and for DHW heating. Any other use is considered inappropriate. We assume no liability for damage occurring due to non-permitted use. HIf 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 regulator. ▶Open windows and doors. ▶Warn your neighbours and leave the building. ▶Prevent anyone from entering the building. ▶Move well away from the building: call the National Gas Emergency Service on 0800 111 999. ▶L.P.G. boilers: Call the supplier’s number on the side of the gas tank. HDanger to life from poisoning by flue gas There is a danger to life from escaping flue gas. ▶Never modify any parts through which flue gas is routed. If flues are damaged or leaking, or if you smell flue gas, observe the following rules. ▶Switch off the heat source. ▶Open doors and windows ▶Warn your neighbours and leave the building immediately. ▶Prevent third parties from entering the building. ▶Notify an approved contractor. ▶Have any defects rectified. HDanger to life from carbon monoxide Carbon monoxide (CO) is a poisonous gas, which arises during the incomplete combustion of fossil fuels such as oil, gas or solid fuels. Dangers arise, if carbon monoxide escapes from the heating system due to a fault or a leak and collects unnoticed in enclosed spaces. You can neither see, taste nor smell carbon monoxide. To avoid danger from carbon monoxide: ▶Have the heating system inspected and serviced regularly by an approved contractor. ▶Use a CO detector, which gives an alarm in good time if CO escapes. ▶If you suspect a CO leak: – Warn your neighbours and leave the building immediately. – Call an approved contractor. – Have any defects rectified. HInspection, cleaning and maintenance The user is responsible for ensuring the heating system is safe and environmentally compatible. Non-existent or improper inspection, cleaning and maintenance may result in personal injury, including danger to life or material damage. We recommend that you enter into a contract covering an annual inspection and responsive cleaning and maintenance with an approved contractor. ▶Have work carried out only by an approved contractor. ▶Have the appliance and heating system inspected by an approved contractor at least once a year. ▶Have any required cleaning or maintenance work carried out immediately. ▶Have any defects in the appliance and heating system remedied immediately, independent of the annual inspection. H Fittings and modification Only a competent engineer can remove the appliance case and carry out any work, in accordance with the relevant Installation Regulations. 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. HCombustion air/ambient air The air in the installation location must be free of flammable or chemically aggressive substances. ▶Do not store or use any flammable or explosive materials (paper, petrol, thinners, paints, etc.) in the vicinity of the heat source. ▶Do not store or use any corrosive substances (solvents, adhesives, chlorinated cleaning agents, etc.) in the vicinity of the heat source. H General considerations ▶The boiler must be installed in a well ventilated area. The openings must be kept in good condition. ▶The vents or any other component contributing to the functioning of the boiler must not be reduced or sealed. ▶We recommend an annual service of the appliance by an approved engineer to ensure reliable and efficient operation. HSafety of electrical devices for domestic use and similar purposes The following requirements apply in accordance with EN 60335-1 in order to prevent hazards from occurring when using electrical appliances: “This appliance can be used by children of 8 years and older, as well as by people with reduced physical, sensory or mental capabilities or lacking in experience and knowledge, if they are supervised and have been given instruction in the safe use of the appliance and understand the resulting dangers. Children shall not play with the appliance. Cleaning and user maintenance must not be performed by children without supervision.” “If the power cable is damaged, it must be replaced by the manufacturer, its customer service department or a similarly qualified person, so that risks are avoided.” H Please read these instructions carefully ▶These instructions are applicable to the Worcester appliance model/ s stated on the front cover only. ▶These instructions apply in the UK/IE only and must be followed except for any statutory obligation.

Product Information 5 Greenstar 1000 – 6721835944 (2023/08) 2 Product Information 2.1 Appliance identification and serial number Fig. 1 Position of data label The data label [1] contains information of the appliance model and serial number. This is located centrally on the bottom of the appliance in line with the control panel. For your own records Please ensure that the Commissioning Checklist has been completed by your installer or service engineer. Table 2 Appliance details The appliance model and serial number can be found on the appliance data label. 2.2 Servicing Ensure that the service engineer completes the Service Record in the Benchmark Checklist after each service. The Service Record can be found at the rear of the appliance’s Installation and Maintenance Instructions. It will be required in the event of any guarantee work and may be required by the local Building Control Inspector. ▶To ensure the continued safe, reliable and environmentally optimum operation of the boiler, it must be thoroughly serviced annually by a competent, qualified person, such as a Worcester service engineer, British Gas engineer or other Gas Safe registered engineer. In the Republic of Ireland servicing work must be carried out by a Worcester service engineer or other Registered Gas Installer (RGII). – Having a contract covering annual servicing, cleaning and maintenance is a good way to ensure this is not missed. – It is important that any required maintenance or repairs are carried out without delay. ▶Ensure that the service engineer completes the Service Record, at the rear of the Installation and Maintenance Instructions manual, after each service. ▶Have any work carried out by a competent, qualified person, Worcester service engineer, British Gas engineer or other Gas Safe registered engineer. In the Republic of Ireland servicing work must be carried out by a Worcester service engineer or other Registered Gas Installer (RGII). ▶Always use original spares, to help maintain the efficiency, safety and reliability of the appliance. 2.3 Maintaining your appliance Your new appliance represents a long term investment in a reliable, high quality product. Wipe the appliance casing with a soft clean cloth. Please do not use chemical cleaning products which may damage the paint finish. In order to realise the appliance’s maximum working life, and to ensure the appliance continues to operate at peak efficiency and performance, it is essential that servicing and maintenance checks are performed at least once a year by a competent engineer in accordance with the current Gas Safe Regulations. If you would like to know more about servicing options from Worcester, Bosch Group, please visit worcester-bosch.co.uk. Please tick the appropriate box on your warranty registration card for further details of the Worcester, Bosch Group Service Contract. When your appliance requires servicing please contact a Worcester, Bosch Group contact centre (see rear cover, appointments). In addition to the service contract we are pleased to offer a one-off annual service or breakdown call out for your appliance. Maintenance tips • Appliances on a sealed heating system: – Regularly check the system pressure. • Do not obstruct the flue outlet or the air inlet. • Use in hard water areas: – In exceptionally hard water areas a device to prevent scale formation should be fitted. Installation of a salt based water softener should be in accordance with the requirements of the local water company. A bypass valve must be fitted and used to fill/top up the heating system with untreated water. Important note: ▶If you have to add water regularly in your heating system, call a competent, qualified person. 2.4 Benchmark standard The Benchmark initiative is a code of practice to encourage the correct installation, commissioning and servicing of domestic central heating appliances and system equipment. A “checklist” is dispatched with every appliance and can be found towards the back of the Installation, Commissioning and Servicing Instructions. This is a vital document that needs to be completed by the installer at the time of installation. It confirms that the appliance has been installed and commissioned according to the manufacturer's instructions. The service record provides space for the recording of regular servicing of the appliance/heating system and this can become a valuable document when, for example, you wish to sell the property. The service record will show a potential purchaser that the heating system has received regular professional maintenance and servicing during its lifetime. The Benchmark initiative aims to: • Raise standards among professional installers. • Build and maintain high safety standards in the industry. • Improve customer satisfaction levels. • Make a contribution to the nation's commitment to climate change. Model: Serial number: Date of installation: x xxx xxx xxx-001 1

Prepare for operation Greenstar 1000 – 6721835944 (2023/08) 6 3 Prepare for operation 3.1 Sealed heating system Appliances that can be connected to sealed heating systems are pre- pressurised before operation, this pressure must be maintained for safe use of the appliance. ▶Check regularly that the pressure is maintained. ▶Re-charge the system if the pressure indicator reads less than 0.8 bar. ▶If a permanent significant decrease or increase in pressure is shown on the pressure indicator, contact your installer or maintenance engineer. Pressure indicator ▶Type of pressure indicator for the system pressure. – Pressure gauge (an analogue dial showing the pressure) – Pressure menu (a digital readout of the pressure) ▶Your appliance may have one or both types of methods to indicate the system pressure. The type of method used on this appliance will be detailed in the following section. 3.1.1 Checking the system pressure Your installer will advise you of the optimum operating pressure. ▶Check the system pressure via HMI screen. ▶Press the return button or ? or ? to see the system pressure. ▶Adjust the system pressure between 1.3 and 1.7 bar. ▶Press the return button for the main display. 3.1.2 Low pressure indication Low pressure will be indicated on the appliance (LOPR): ▶Adjust system pressure according to chapter 3.1.1, page 6. 3.1.3 Constantly re-pressurising the system Constantly having to re-pressurise the heating system should be investigated as it is an indicator of potential leaks and the concentration of inhibitor protection in the system will be reduced; this can result in corrosion within the heating system, reducing efficiency and increasing contaminates. ▶Check for leaks on heating system (pipework and radiator valves). ▶Contact your installer or maintenance engineer if a recurring significant decrease or increase in pressure is shown on the pressure indicator (pressure gauge or pressure display). System pressure increasing: ▶If the system pressure repeatedly increases and you need to vent air from the radiators, refer to  section 3.2 "System Gassing", page 7.

Prepare for operation 7 Greenstar 1000 – 6721835944 (2023/08) 3.2 System Gassing Fig. 2 Gassing flow chart Your installer should have informed you where to find the filling system and instructed you in its use.

Notice

No

No

No

Yes

Yes

Yes

No

Yes

No

Yes

No

Yes

Prepare for operation Greenstar 1000 – 6721835944 (2023/08) 8 External filling loop Once the external filling loop and pressure gauge has been located, follow the instructions for re-pressurising the system. Refer to figure 3. ▶Unscrew the blanking cap [1]. ▶Attach the hose [2] to the valve. – Usually one end of the hose is already connected to one of the system fill isolation valves. ▶Ensure both ends [3] of the hose are screwed on hand tight. – The system fill isolation valves [4] are in a closed position (the handle/screwdriver slot is across the valve). ▶Turn the handle/screwdriver slot through 90° to open valves and slowly fill the system to between 1 and 1.5bar. – The system fill isolation valves [5] are opened (the handle/ screwdriver slot is in-line with the valve). – The needle on the pressure gauge will start to rise. ▶Turn the handles/screwdriver slots back, through 90°, to close the valves. – The system fill isolation valves [6] are in a closed position (the handle/screwdriver slot is across the valve). ▶Top up the system pressure, if as a result of the air bleeding the pressure drops off. ▶Remove the hose [2] and replace the blanking cap [1]. Fig. 3 External filling loop If the pressure gauge reads more than 1.5 bar as a result of over filling: ▶Bleed one radiator until the pressure gauge returns to between 1 and 1.5 bar. ▶It is good practice to bleed any excess air that has entered the heating system due to pressure loss. Locate and open the radiator's bleed/ vent point, closing the valve when water begins to flow. ▶If, through normal boiler operation, the PRV pipe starts to leak, it could be a sign of system pressure being too high. In this instance please bleed a radiator as described above.

Warning

Caution

Operation 9 Greenstar 1000 – 6721835944 (2023/08) 4 Operation These operating instructions describe the operation of the gas-fired condensing boiler. Therefore please also observe the operating instructions for the user interface. 4.1 Switching on/off the appliance Switching on After initial power-up of the appliance, the appliance will initiate siphon fill mode. When and the flow temperature appear alternately on the display, the appliance remains at minimum heat output for 15 minutes to fill the condensate trap. Switching off

Notice

12 °C.

Operation Greenstar 1000 – 6721835944 (2023/08) 10 4.3 Screen display Fig. 5 Screen display Table 3 4.4 Displayed Indicators Indicators displayed on the screen (Tab. 4 and 5): Table 4 Display indicators Table 5 Special display indicators The heating and hot water system has been set up by the installer to its optimum settings. ▶It is advised to make a note of these settings before adjusting so that you can return to these optimum settings in the future. 4.5 Setting the flow temperature The maximum flow temperature can be adjusted between 30 °C and 82 °C. The current flow temperature is shown on the display. ▶Press the ( key. The set maximum flow temperature is displayed. ▶Press arrow key  or  to set the required maximum flow temperature. ▶Press the ok key to save. Otherwise the setting will be saved automatically after 3 seconds. The display shows the current flow temperature. The ( symbol flashes in the display in heating mode. The B symbol also appears if the burner is active.

Warning

Shutdown 11 Greenstar 1000 – 6721835944 (2023/08) 4.6.2 Setting comfort mode or ECO mode In comfort mode, the appliance is continually maintained at the set temperature. This means there will be a shorter delay i.e. when hot tap is running. However, the appliance will use more gas in comfort (or pre- heat) mode. In ECO mode, heating up to the set temperature begins as soon as the hot water tap has been opened. ▶To set ECO mode: press eco until eco appears in the display. ▶To return to comfort mode: press the eco key until eco vanishes from the display. With the boiler in DHW ECO mode it is possible to operate the Quick Tap function, designed to save water: ▶Fully open the hot water tap for at least 3 seconds. ▶Turn the hot water tap to fully closed. ▶Wait up to 30 seconds as the boiler continues to prepare hot water. ▶Open the hot water tap. Hot water is available. ▶For more information on the Quick Tap function, see section 9, page 15. 4.7 Setting summer mode The heating pump and consequently the heating are switched off in summer mode. The DHW supply and also the power supply for heating controls and timer remain active. To activate summer mode: ▶Press the ( key. ▶Keep pressing the arrow key  until appears in the display. ▶Press the OK key to save. Otherwise the setting will be saved automatically after 3 seconds. ] is permanently displayed. Further notices can be found in the operating instructions for the heating control. 4.8 Manual mode Manual mode can be enabled to operate the boiler independent of controls, should there be a technical issue with time and temperature controls fitted. To activate manual mode: ▶Press and hold the ( key for 5 seconds. ▶Check the flow temperature shown and adjust if necessary. – The flow temperature will be shown in between two hyphens, indicating manual mode. Fig. 6 Manual mode shown on display Manual mode should be used for a limited time only until the time and temperature controls are fixed. ▶To disable Manual Mode press and hold the ( key for 5 seconds. 5 Shutdown 5.1 Setting frost protection

Notice

Warning

Caution

Clearances and ventilation information Greenstar 1000 – 6721835944 (2023/08) 12 Table 6 Appliance minimum clearances Reduced front maintenance minimum clearances The front servicing clearance for this appliance can be reduced to 450mm. For installations with a front servicing clearance less than 600mm (minimum of 450mm), the following additional criteria must be achieved. • The bottom of the appliance case must be between 1000mm and 1500mm from the floor. • There must be at least 450mm clearance in front of the appliance to floor level. Anything sited below the appliance must not protrude into this clear space. • There must be at least 200mm clearance to any structure which is sited below the appliance. • There must be at least 300mm clear space to either the left hand or right hand side of the appliance. This clear space must be from the required clear height above the appliance to floor level. – This clearance will not apply if the appliance is sited within 300mm of a door way and the door frame is the only obstruction. Minimum clearances must be observed to any obstruction/ surface, (dark shaded areas, figures 8 and 9). Fig. 8 Reduced front maintenance clearances - Side view

[A]

X

Y

Z

A

Malfunction or failure 13 Greenstar 1000 – 6721835944 (2023/08) Fig. 9 Reduced front maintenance clearances - Front view

[A]

A

Malfunction or failure Greenstar 1000 – 6721835944 (2023/08) 14 No appliance fault is found on over 30% of all service calls. ▶In the case of a suspected fault, refer to the basic checks earlier in this section. In the event of an appliance fault or breakdown please contact Worcester, Bosch Group appointments team on 0330 123 9339. 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 and bank holidays) for priority breakdown situations (no hot water and/or heating). 7.1 Troubleshooting The H symbol indicates that a fault has occurred. The cause of the fault is displayed in code (e.g. fault code 214). Fig. 10 Example of a fault code Some faults lead to a shutdown of the appliance, which only starts again after a reset: ▶Press the  and  arrows simultaneously, until the symbols H and ! are no longer be displayed. The appliance starts up again. The flow temperature is displayed. If a fault cannot be eliminated: ▶Contact an Installer/Service Engineer or Worcester, Bosch Group appointments team on 0330 123 9339. ▶You will need to provide them with the displayed fault code and the following appliance data. – Appliance type and serial number. – Commissioning date. 7.2 Extreme cold weather In certain instances where the condensate pipework is run externally or in an unheated area, such as a garage, the condensate pipework can be at risk of freezing, even if well insulated. A frozen/blocked condensate pipe will cause the boiler to shut down. Worcester, Bosch Group have available helpful videos on thawing frozen condensate pipe work on our website in the Customer Service section.

Warning

Caution

Caution

Caution

Environmental protection and disposal 15 Greenstar 1000 – 6721835944 (2023/08) 8 Environmental protection and 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 Where packaging is concerned, we participate in country-specific recycling processes that ensure optimum recycling. All of our packaging materials are environmentally compatible and can be recycled. Compostable packaging Compostable packaging is used wherever possible in an effort to reduce the product’s impact on the environment and the overall demand for plastic packaging. Where the following symbol is shown the material is compostable: Compostable packaging can be disposed of in a number of ways: • Home compost heap • Local Authority garden waste collection • Local Authority food waste collection, ideally as a food waste bin bag • Local Authority household waste Please note that compostable materials cannot be recycled. Used appliances Used appliances contain valuable materials that can be recycled. The various assemblies can be easily dismantled. Synthetic materials are marked accordingly. Assemblies can therefore be sorted by composition and passed on for recycling or disposal. Old electrical and electronic appliances This symbol means that the product must not be disposed of with other waste, and instead must be taken to the waste collection points for treatment, collection, recycling and disposal. The symbol is valid in countries where waste electrical and electronic equipment regulations apply, e.g. "(UK) Waste Electrical and Electronic Equipment Regulations 2013 (as amended)". These regulations define the framework for the return and recycling of old electronic appliances that apply in each country. As electronic devices may contain hazardous substances, it needs to be recycled responsibly in order to minimize any potential harm to the environment and human health. Furthermore, recycling of electronic scrap helps preserve natural resources. For additional information on the environmentally compatible disposal of old electrical and electronic appliances, please contact the relevant local authorities, your household waste disposal service or the retailer where you purchased the product. You can find more information here: www.bosch-homecomfortgroup.com/en/company/legal-topics/weee/ Batteries Batteries must not be disposed together with your household waste. Used batteries must be disposed of in local collection systems. 9 Tips on energy saving Quick Tap function ▶Fully open your hot water tap for at least 3 seconds. This ignites the boiler. ▶Turn hot water tap to fully closed. ▶Wait up to 30 seconds1) as the boiler continues to prepare hot water. ▶Open your hot water tap; hot water is available2) On average, 3.5 litres of water can be saved when using the Quick Tap function. Water saving varies depending on user behaviour, pipework design and the time of year, for example, if Central Heating is on during the winter, DHW will heat up quicker than in the summer, reducing the potential for water saving. Savings are calculated based on average mains water pressure, a heat-up time of 30 seconds and close proximity of the tap to the boiler. Heating economically The appliance provides a high level of comfort whilst keeping fuel consumption and the environment effects as low as possible. The appliance is controlled in such a way that it delivers heat at the correct rate and only if there is a clear demand from the system. Central heating systems with thermostatic radiator valves With modern heating systems set around a 20 °C heat loss, the optimum setting for a condensing boiler will be approximately 65 °C for the central heating temperature. This is to ensure a return temperature of less than

52 °C.

Your guarantee Greenstar 1000 – 6721835944 (2023/08) 16 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. Draughts Try to ensure that draughts around doors, windows, letter boxes and keyholes etc. are reduced by using a suitable draught excluder.

Warning

Energy consumption 17 Greenstar 1000 – 6721835944 (2023/08) 11 Energy consumption 11.1 Product data on energy consumption The following product data comply with the requirements of the EU Regulations No. 811/2013, No. 812/2013, No. 813/2013 and No. 814/2013 supplementing the Regulation (EU) 2017/1369. Natural Gas appliances Table 9 Product data on energy consumption Greenstar 1000 Product data Symbol Unit 7 736 902 178 7 736 902 179 Product type – –

Gr1000W 24 C Ng

Gr1000W 30C Ng

A

A

P4

P1

Psb

Qhe

Qhe

Gj

Lwa

Xl

Xl

A

A

Aec

Afc

Gj

S

W

V

Data Protection Notice Greenstar 1000 – 6721835944 (2023/08) 18 12 Data Protection Notice We, Bosch Thermotechnology Ltd., Cotswold Way, Warndon, Worcester WR4 9SW, United Kingdom process product and installation information, technical and connection data, communication data, product registration and client history data to provide product functionality (art. 6 (1) sentence 1 (b) GDPR / UK GDPR), to fulfil our duty of product surveillance and for product safety and security reasons (art. 6 (1) sentence 1 (f) GDPR / UK GDPR), to safeguard our rights in connection with warranty and product registration questions (art. 6 (1) sentence 1 (f) GDPR / UK GDPR) and to analyze the distribution of our products and to provide individualized information and offers related to the product (art. 6 (1) sentence 1 (f) GDPR / UK GDPR). To provide services such as sales and marketing services, contract management, payment handling, programming, data hosting and hotline services we can commission and transfer data to external service providers and/or Bosch affiliated enterprises. In some cases, but only if appropriate data protection is ensured, personal data might be transferred to recipients located outside of the European Economic Area and the United Kingdom. Further information are provided on request. You can contact our Data Protection Officer under: Data Protection Officer, Information Security and Privacy (C/ISP), Robert Bosch GmbH, Postfach 30 02 20, 70442 Stuttgart, GERMANY. You have the right to object, on grounds relating to your particular situation or where personal data are processed for direct marketing purposes, at any time to processing of your personal data which is based on art. 6 (1) sentence 1 (f) GDPR / UK GDPR. To exercise your rights, please contact us via [email protected] To find further information, please follow the QR-Code.

Bosch Thermotechnology Ltd. Cotswold Way, Warndon Worcester WR4 9SW United Kingdom Tel. 0330 123 9559 worcester-bosch.co.uk

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