The Greenstar Highflow CDi gas-fired condensing combi boiler series Technical and specification information NEW PRODUCT 1 Worcester, Bosch Group headquarters Worcester and you. Making a difference. Contents Page you, our customer, has in the specification The Greenstar Highflow CDi gas-fired 4-7 our headquarters and manufacturing and installation of ‘A’ rated, energy efficient condensing combi boiler series plants in Worcester and at Clay Cross in appliances in homes across the UK. We will Optional plug-in controls 8-9 recognised as a market leader in high Derbyshire, including a nationwide network continue to invest in our products, people, Technical data 10 efficiency, condensing boiler technology and of over 300 Service Engineers and over 80 facilities and added value services such as The inside story 11 are also committed to providing renewable technically-trained Field Sales Managers. training, to give you the support you require Installing the Greenstar Highflow CDi boiler series 12 - 19 in providing a total solution for your Greenstar Highflow CDi series horizontal 20 - 21 customers’ comfort.” fluing options Working together for many years, heating We’re a leading British company, “At Worcester we recognise the vital role professionals and Worcester have been employing approximately 2,000 people at making a real difference in hundreds of thousands of homes across the UK. We are energy solutions. As part of Europe’s largest supplier of 22 - 23 heating products, Worcester, Bosch Group designed and manufactured to provide the has the UK-based resources and support Richard Soper, fluing options high levels of quality and reliability which are capability to offer you the value-added Managing Director, Worcester, Bosch Group Plume management system options 24 - 27 synonymous with the Bosch name solutions we feel you deserve. Installation requirements 28 - 30 The Greenstar Highflow CDi series accessories 31 - 32 After-sales 33 Worcester training 34 - 35 throughout the world. 2 Greenstar Highflow CDi series vertical As part of the Bosch Group, our products are 3 The Greenstar Highflow CDi condensing combi boiler series The Greenstar Highflow CDi series is part of a market The Greenstar Highflow CDi condensing boiler series leading range of energy-saving condensing floor standing delivers this energy-saving performance by recycling gas-fired combi boilers. exhaust gases to extract the latent heat – a highly efficient use of energy which also significantly reduces carbon The Greenstar Highflow CDi combi series at a glance Output kW to DHW Min Max Flow rate at 35ºC Δ T Higher efficiency therefore highly cost effective dioxide emissions into the atmosphere. All of the new Greenstar Highflow CDi condensing combi To all these major benefits you can add yet more: renowned DHW temperature control boilers are SEDBUK A rated. This means they have an Worcester quality and reliability; outputs and flow rates to average annual efficiency of 90.8%, standard efficiency comfortably satisfy the heating and hot water demands of upgrading to a Greenstar Highflow CDi boiler, consumers can reduce their gas bills as well as their carbon footprint. the larger household and all-round value for money. 20 & 25 litre/minute flow rate CH temperature control boilers achieve around 78% efficiency. Therefore by Features Natural gas LPG boiler Electronic ignition SEDBUK band Greenstar Highflow 440CDi Greenstar Highflow 550CDi 7.4kW 9.7kW 29.5kW 41.1kW 20l/min* 25l/min* • • • • • • • • • • A (90.8%) A (90.8%) *Provided adequate mains water pressure and flow is available – see page 29 for further details Built-in condensate pump – 4.5m head Benefits NEW NEW Suitable for larger family homes Increases siting possibilities Earth bonding strip Labour and money saving Roll-in boiler Minimises risk of damaging floors Built-in filling link Labour and money saving Temperature control Consumer-friendly for CH + DHW and energy saving Multi-directional Condensfit II Siting flexibility fluing – compatible with plume management Floor mounted Allows pre-filling of system pre-plumbing jig and no pipe fabrication required Electronic ignition UNIQUE NEW FEATURES Energy saving Built-in frost Money saving, protection economical protection Pump seizure protection Prevents call-backs Fault finding diagnostics Time saving Anti-cycle device Energy saving No ventilation grilles Labour and money saving required in compartments Optional plug-in twin No electrician required channel programmer 4 5 The Greenstar Highflow CDi condensing combi boiler series Operation • Worcester Greenstar Highflow CDi combis can be sited underneath a worktop as servicing can be undertaken A condensing boiler is more efficient due to its ability to Modulating central heating and hot water outputs Hot water mode from the front. A removable section of worktop is extract more heat from the flue gases normally lost to the combined with separate consumer controls, also mean With the appliance in a standby condition, i.e. thermal store recommended should you require top access for environment through the flue system. that comfortable temperature levels for both can be set or heatbank at temperature set by the hot water thermostat, maintenance work independently of each other. a demand for hot water will cause the flow turbine to silicon heat cell with an extra large surface area. energise the pump and circulate primary hot water around Greenstar Highflow CDi combis are supplied as standard the boiler and the plated water to water heat exchanger. The suitable for sealed primary water systems. The appliance burner will ramp-up at its maximum setting and modulate As the flue gases pass through the heat exchanger this contains a 12 litre expansion vessel, 3bar pressure relief accordingly to maintain the temperature of the heatbank. extra surface area cools the flue gases to around 55°C at valve, pressure gauge and an automatic air vent. The which point the latent heat within is released. This is heat appliance cannot be used on an open vent system. that would normally be lost to the atmosphere. required temperature. It is this ability to extract as much heat as possible from Greenstar Highflow CDi combis are available as a multi- the gas it burns that gives Greenstar Highflow CDi combis directional room-sealed fanned flue appliance. Priority is always given to the production of domestic hot an exceptionally high level of operating efficiency. water. Should the central heating be in operation when a hot Gas water demand is made, the supply to the radiators will be This higher efficiency is recognised within section L of the The Greenstar Highflow CDi is manufactured in both natural temporarily interrupted. Building Regulations, subsequently achieving a higher SAP gas and Liquid Petroleum Gas (LPG) variants. or NHER rating. Greenstar Highflow 440CDi 42.5 When hot water is no longer required the appliance will continue to operate until the heatbank has returned to the Fluing Hot water performance Temperature ºC ∆ T Greenstar Highflow CDi combis use a proven aluminium- 40 the thermal store ensures that hot water is delivered around the heating system. The burner will light at the instantly to the outlet being operated. minimum setting and ramp upwards to meet the system demand. The radiators will heat up to the temperature set 100 litres 35 130 litres 32.5 30 182 litres Normal bathing temperature 1 2 3 4 5 6 7 8 9 10 On a demand for central heating the pump will energise, the diverter valve will open and primary water will circulate 72 litres 37.5 Central heating mode The separate plated DHW heat exchanger combined with 50 litres Time in minutes Nominal flow rate 4.4gpm (20l/min) Cold water inlet 10ºC (50ºF) Greenstar Highflow 550CDi by the fascia mounted heating temperature controller 42.5 The advantages of a combi boiler Application of Greenstar Highflow CDi combis • Worcester Greenstar Highflow CDi combis deliver A combi (or combination boiler) is a compact and highly So you not only save space, but also reduce hot water costs efficient unit giving all the heating and hot water you need, – which can account for up to 60% of a typical domestic domestic hot water at a flow rate of 20 litres/min (4.4gpm) with significant savings on running and installation costs. fuel bill. & 25 litres/min (5.5gpm), making the appliances ideally suited for use in medium to large sized family homes, Unlike a conventional heating and hot water system, a A combi also supplies hot water at mains pressure, giving combi boiler system does not store domestic hot water. It you powerful showering without the need for a pump. And heats water directly from the cold water mains – as you use as, on average, a shower uses considerably less water than it. There’s no hot water cylinder, no tank in the loft (and so a typical bath, the savings on hot water costs and water hot water at mains pressure, they are ideally suited to less risk of freezing and flooding), and none of the consumption can be significant. providing a powerful shower Temperature ºC ∆ T (assuming there are no TRVs on the radiators). incorporating up to three bathrooms 40 37.5 35 32.5 30 • As the Worcester Greenstar Highflow CDi combis deliver 42.5 litres 70 litres 98 litres 135 litres 183 litres Normal bathing temperature 1 2 3 4 5 6 7 8 9 10 Time in minutes Nominal flow rate 5.5gpm (25l/min) Cold water inlet 10ºC (50ºF) connecting pipework. • Worcester Greenstar Highflow CDi combis can be sited Regular Combi boiler layout boiler layout Feed and expansion cistern where space and water storage is a problem • Worcester Greenstar Highflow CDi combis may be used to Cold water storage cistern provide domestic hot water only, with radiators being Fluing Greenstar Highflow CDi combis feature 2 different sizes of multi-directional RSF flue systems, 100mm or 125mm dia. added at a later date Hot water cylinder Hot water to baths, showers and basins etc The flue can be run horizontally or vertically with Pump Hot water to baths, showers and basins etc Motorised valve Programmer Worcester regular boiler Room thermostat Room thermostat Worcester combi boiler with programmer Cold mains 6 • The fluing options available with Greenstar Highflow CDi additional 90º or 45º in-line bends allowing changes of combis, both horizontal and vertical, offer excellent scope route or direction, providing an extremely flexible and for siting the appliance, particularly in kitchens, airing versatile fluing system enabling the appliance to be sited cupboards, etc virtually anywhere. More details are shown on page 20. 7 Optional plug-in controls Greenstar Highflow CDi floor standing condensing combi boilers are available with a range of easy-to-use controls. These DT10RF optimiser fascia-mounted controls offer simple plug-in connection to the boiler circuit board. A seven day digital programmable RF thermostat with a seven day programmer/receiver in the boiler fascia for hot water. The transmitter is the tried and tested Optimiser as Mechanical timers available with other Worcester boilers. The optimum start feature, where the thermostat delays the firing of the boiler until necessary, is a useful energy-saving option. MT10 mechanical timer The simplest Worcester control device – an easy-to-use analogue clock for setting heating TD200 text display* time periods. It plugs into the boiler fascia via a pre-prepared plug and socket. A seven day programmer with easy-to-use text display with automatic time and date setup, automatic summer/winter time changeover and a backlight for use in low light conditions. Three on/off periods can be set per day. The TD200 can be fascia mounted or hard wired outside the boiler using the optional wall mounting socket. The TD200 features an easy-to- MT10RF mechanical RF thermostat use full text display providing more information than standard digital controls. A hard wired Has an analogue display for setting night and day time periods and temperature. The room thermostat is available to provide optimum start functionality. receiver plugs into the boiler and is activated remotely by the RF (radio frequency) controller, which requires no wiring. So installation is clean and simple – no disturbance to floorboards or carpets. Nor is there any need for a separate room thermostat. RT10 room thermostat* These mechanical timers do not control domestic hot water pre-heat. If this function is A hard wired optimising room temperature controller with digital display for use with the required please select a digital programmer. Alternatively, an additional single channel timer TD200. The display shows current and desired temperature and an advance button allows for hot water control, could be wired in remotely. the user to move to the next heating switch point. Digital and wireless programmers and room thermostats TD200 wall mounting socket* A Worcester branded wall mounting socket which allows the TD200 to be hard wired away DT20RF digital RF thermostat with twin channel programmer from the boiler. A wall-mounted RF room thermostat with digital display, combined with a twin channel digital timer in the boiler fascia. The fascia mounted programmer benefits from automatic time and date setup, automatic summer/wintertime changeover and a backlight for use in *All three of the above are classed as an Intelligent Combi package. low light conditions. DT20 twin channel digital programmer A versatile, easy-to-learn, 7 day, digital programmer offering up to 3 on/off settings per day. The programmer has a host of innovative features including automatic setup, which sets the correct time and date at power-up, automatic summer/wintertime changeover and a green backlight for use in low light conditions. Increased SAP ratings As well as the Greenstar Highflow CDi appliances achieving very high SAP ratings for dwellings, the addition of the DT10RF digistat optimising temperature controller further increases these A familiar wall-mounted 24 hour programmable RF digital thermostat combined with a ratings as well as being part of the recommended best fascia mounted single channel programmer to time the hot water combi preheat functions. practice, as covered by the CHeSS design standard. The programmer includes a built-in receiver for the room thermostat and all of the functionality of the DT20. TD200 text display 8 9 Technical data – Greenstar Highflow CDi series Model Greenstar Highflow 440CDi Greenstar Highflow 550CDi Height (mm) 850 850 Width (mm) 600 600 Depth (mm) 600 600 Weight – dry (kg) 112 112 SEDBUK value % / band – natural gas 90.8%/Band A 91%/Band A SEDBUK value % / band – LPG 92.2%/Band A 92.2%/Band A Heating flow / return connections 22mm compression 22mm compression Hot / cold water connections 22mm compression 22mm compression 15 15 Pressure relief valve (mm dia.) Condensate connection 22mm plastic pipe 22mm plastic pipe Gas connection 22mm compression 22mm compression Primary water content (litres) 51 51 Min. domestic inlet pressure for max. DHW flow rate (bar) 1.5 1.7 Min. domestic inlet pressure to operate the appliance (bar) 0.5 0.5 Max. domestic inlet pressure (bar) 10 10 DHW flow rate @ 35ºCΔT (l/min) 20 25 Output to central heating kW (Btu) 7.4 - 29.2 9.7 - 30.6 (25,590 - 99,630) (33,096 - 104,407) • • • • Floor mounted pre-plumbing jig Filling link Plug-in timer • (optional) • 13 1 2 12 11 3 14 15 16 17 18 4 5 (optional) • • Fault diagnostic display Digital Digital Max. vertical flue (mm) (100mm dia.) inc. terminal 6,400 6,400 Max. vertical flue (mm) (125mm dia.) inc. terminal 15,000 15,000 Max. horizontal flue (mm) (100mm dia.) 4,000 4,000 Max. horizontal flue (mm) (125mm dia.) 13,000 13,000 NOx classification Class 5 Class 5 Condensate disposal pump The Greenstar Highflow CDi condensing combi boiler series – inside story 6 10 7 8 9 Key to components 10. Gas valve 1. Control panel 11. Heat cell 2. Tank over heat thermostat 12. Gas burner/spark electrodes 3. Tank temperature sensor 13. Combustion air modulating fan 4. Heat store 14. On/off button 5. Plate DHW heat exchanger 15. Central heating temperature control 6. Filling loop isolation valve 16. Digital display 7. Water flow sensor turbine 17. Domestic hot water temperature control 8. Expansion vessel 18. Pressure gauge 9. Circulating pump 10 11 Installing the Greenstar Highflow CDi series Siting of appliance Condensate disposal Never terminate or discharge into any open source, including: sink, bath, shower, bidet, toilet etc. All condensing boilers generate condensate discharge which needs to be piped away from the appliance using a Note: any external condensate pipework should be protected plastic pipe. with weather resistant insulation to help prevent freezing. The amount of condensate generated depends on the The condensate connection on Worcester appliances is in Site preparation/portability General Greenstar Highflow CDi appliances are supplied with a floor efficiency and operating status of the appliance. Depending 22mm polypropylene. The pipe should be extended and The appliance is not suitable for external installation. The mounted pre-plumbing jig. The jig enables all gas and water on operating temperatures, the appliance will condense in run away from the appliance with a constant fall of 3º or at floor on which the boiler is to be mounted should be services to be pre-plumbed and tested prior to fitting the both heating and hot water modes and may generate up least 50mm in every metre away from the boiler. capable of supporting an overall weight of approximately boiler. to 2.7 litres of condensate per hour for the 440CDi and 160kg. 3.7 litres per hour for the 550CDi. The condensate pipe can terminate into any one of four For ease of installation the appliance has a roll-in boiler tray Clearances which allows it to be rolled into place once the connections The following clearances should be allowed for installation have been made. areas (see next page). Condensate termination and route Whilst all of the methods are acceptable it is best practise and servicing. Pipework connections and casing dimensions Installation clearances Greenstar Highflow CDi combis incorporate a condensate to terminate the condensate pipe via an internal waste pump which allows condensate to be plumbed above the system. This will eliminate the need for any external boiler, allowing more flexible siting possibilities. condensate pipe runs which can be susceptible to freezing The minimum space required to install the boiler only. 1,200mm in extreme weather. Best practise is not to run external 610mm Condensate connection condensate pipe any further than 3m. If it is necessary to The condensate pump fills up and periodically discharges run more than 3m externally increase pipe size to 32mm. through the flexible condensate pipe between 200mm and 600mm 4,500mm from floor level. After this point the condensate A continues down the 22mm rigid pipework to the outlet 1,450mm using gravity. 5mm 5mm C B 600mm Cut off excess pipework Cabinet dimensions (mm) Service clearances A 850 B 600 C 600 Max. 4,500mm The minimum space required to service the boiler only. Min. 200mm 1,200mm 610mm Condensate pump 865mm 15mm A 5mm • The flexible plastic pipe can be reduced in length to suit the installation circumstances. The pipework must follow B C 5mm E 600mm 250mm* *Space required for unvented areas with a removable door or panel 12 one of the options shown on the next page. D Pipework connections A CH flow 22mm B DHW flow 22mm C Gas inlet 22mm D Cold main inlet 22mm E CH return 22mm 13 Condensate termination and route Condensing boiler Condensing boiler Visible air break at plug hole Boiler location and clearances The Worcester Greenstar Highflow CDi appliances have a This boiler is only suitable for installing internally within a condensate pump rather than a syphonic condensate trap. property at a suitable location on a fixed, rigid non- Rather than the condensate constantly dripping into the combustible surface of at least the same size as the boiler discharge pipe, the condensate is collected in the pump and capable of supporting the boiler weight. which releases it in 100ml quantities. This will help prevent 22mm dia. Insulation or increase pipe size Open end of condensate drainage pipe directly into gully below grating but above water level Sink with integral overflow 100mm External condensate pipework 22mm dia. plastic pipe 75 mm min. Soil & vent stack freezing occurring. Compartments: Follow the requirements of BS 6798 and BS 5440 Part 2 and note: Wherever possible the condensate discharge pipework should be routed and terminated internally. Should this not Minimum 450mm and up to 3 storeys be possible, and the only available route is external, the following conditions should be observed: 75mm sink waste trap • An access door is required to install, service and maintain the boiler and any ancillary equipment • Invert • Minimum clearances must be maintained The pipework length should be kept to a minimum and • the route as vertical as possible If fitting the boiler into an airing cupboard use a noncombustible perforated material (maximum hole sizes of • Where pipework could be subjected to extreme cold or Internal sink/washing machine drain Soil and vent stack 13mm) to separate the boiler from the airing space. wind chill, a weather proof insulation should be used. Alternatively, the condensate pipework could be Unvented compartment clearances increased to a minimum 32mm. The diagram shows the minimum space required to install and service the boiler inside an unvented compartment. 22mm dia. condensate drainage pipe, max external length 3 metres Compartment installation Condensing boiler Insulation or increase pipe size Condensate drainage pipe can be run above or below ground Diameter 100mm min. plastic tube Bottom of tube sealed Limestone chippings 25mm External drain pipe into foul water sewer IEE regulations applicable and in Scotland the electrical provisions with respect to installation in a room containing External air break 22mm dia. plastic condensate drainage pipe running through the external wall Air gap a bath or shower. Air supply 43mm 90° M & F bend 68mm dia. PVC-u strap on fitting require a dedicated air vent. 100mm** 200mm* 2. If the appliance is installed in a cupboard or compartment with dimensions that allow the following Hole depth 400mm min. by 300mm dia. minimum clearances, then no ventilation is required: Compartment installation Position of appliance External condensate absorption point (unsuitable for clay soil types) 100mm** 1. The room in which the appliance is installed does not Insulation or increase pipe size Drainage holes 50mm particular attention is drawn to the requirements of the 900mm 500mm min. 800mm 800mm The appliance may be installed in any room, although External air break when using a foul water down pipe Min. unventilated clearance In front 75mm* Right side 100mm Left side 100mm Above flue elbow/casing *Space required for unvented areas with a removable door or panel. **This space can be reduced to 50mm for one side only as along as both the side clearances add up to the total of both the side measurements shown or more. 50mm *75mm from an opening door. 600mm is required for servicing 14 15 Airing cupboard clearances Venting compartments The diagram below shows the minimum space required to If the clearances are less than those stated for the options install and service the boiler within an airing cupboard. above then ventilation must be provided as described in Boiler location & clearances Bathrooms BS 5440. IMPORTANT: 800mm 625mm A minimum of 2 air vents (A) must be fitted, one at low Any switch or appliance control using mains electricity must A boiler with a mechanical timer or RF mechanical timer level and another at high level onto the same wall using the not be within reach of a person using the bath or shower. with a room thermostat must only installed outside the same air for circulation. shaded area. Electrical switches, fused spurs and socket outlets must not Minimum free air required for venting: 100mm 2,300mm 25mm be situated in the bathroom. 440CDi 200mm 155cm2 be required. per vent A boiler fitted with a non-mechanical timer or with no timer 550CDi 220cm2 per vent • 100mm Additional Residual Current Device (RCD) protection may • For air directly from outside: can be installed in zone 2 or outside the shaded area. For air from internal space/room: 440CDi 310cm2 per vent 600mm 550CDi 440cm2 per vent 25mm Refer to the latest IEE wiring regulations. 600mm 100mm 750mm 1 1 2 2 2,250mm 2,250mm A 600mm 750mm 2,250mm 2 1 1 2 2,250mm 600mm radius 16 17 Flue terminal positioning NOTES: General position Plume management kits are available for 100mm horizontally terminated flues. Please refer to the installation instructions supplied with the plume management kits. 1. The terminal must not cause an obstruction nor the discharge a nuisance. Particular care should be exercised with regards to the pluming of the flue gases and any increase in noise levels. If plume redirection is utilised, the clearance from any opening must be increased in the direction of the plume to 1,500mm. 2. If a terminal is fitted less than 2 metres above a surface to which people have access, then a guard must be fitted. The terminal guard 500mm clearance to any vertical structure on a roof, 600mm to another flue or 1,500mm to an open flue. must be securely fixed to the wall using suitable plugs and corrosion resistant screws. The guard must be symmetrically positioned about the 300mm Opening in building terminal assembly and spaced to allow a gap of 50mm between the end of the terminal and the condense compatible guard. Min. 1,500 mm 500mm DORMER WINDOW 3. In certain weather conditions, a white plume of condensation will be emitted from the flue terminal and siting where this could be a nuisance, VELUX WINDOW Direction of flue discharge 1,500mm between a vertical flue terminal and a window or dormer window 1,500mm Plume deflector i.e. near security lighting, should be avoided. 400mm 400mm from a pitched roof or in regions with heavy snow fall 500mm 4. The air inlet/outlet duct and the terminal of the boiler must not be closer than 25mm to any combustible material. Detailed recommendations on 2,000mm below a Velux window, 600mm above or to either side of the Velux window protection of combustible materials are given in BS 5440:1. The flue cannot be lower than 1,000mm from the top of a light well due to the build up of combustion products The flue system must be installed and terminated in accordance with the recommendations of BS 5440:Part 1. 200mm 200mm below eaves and 75mm below gutters, pipes and drains 25mm 600mm minimum clearance from a skylight to a vertical flue 1,200mm between terminals facing each other 300mm 300mm to an internal or external corner 1,500mm 500mm 600mm 500mm 300mm Window NOTE: All measurements are the minimum clearances required. Terminals must be positioned so to avoid combustion products entering the building 300mm 600mm 600mm distance to a boundary, unless it will cause a nuisance. BS 5440: Part 1 recommends that care is taken when siting terminals in relation to boundaries 300mm 1,200mm DRAINPIPE Clearance no less than 200mm from the lowest point of the balcony or overhang 300mm above, below and either side of an opening door, air vent or opening window Boundary NOTE: Installations in carports are not recommended 300mm The flue turret has a built-in angle of 3° to ensure that the condensate flows back to the boiler for safe disposal via the condensate waste pipe. All horizontal flue sections must 1,000mm 1,000mm rise by 3° or at least 52mm for each metre away from the boiler to ensure condensate flows back into the boiler. 52mm fall 104mm fall 18 500mm Vertical flue clearance 500mm to non-combustible building material, and 1,500mm clearanceto combustible building material 1,200mm from an opening on the same wall (ie: door or window leading into a dwelling) in a carport with both sides open, to prevent the build up of combustion products. Flue clearances must be at least 300mm from the ground. Terminal guards must be fitted if the flue is less than 2 metres from the ground or if a person could come into contact with the flue terminal. 19 Greenstar Highflow CDi combi boiler horizontal fluing options Option 3 Extension rear flue horizontal using 45º bends Greenstar Highflow CDi combis offer a choice of 2 different The following criteria should be noted when planning the sized horizontal RSF flue systems, 100mm diameter and installation. 125mm diameter. The systems have different maximum • The concentric flue system must be inclined at 3º lengths. Options 1 to 8 detail the permissible lengths. (52mm per metre) from the appliance, to allow condensate to drain back into the boiler. • Because the appliance operates at high efficiency a 100mm 125mm white plume of condensation will be emitted from the terminal. Care must be taken when selecting the flue Minimum flue length 130mm 350mm Maximum flue length 4,000mm 13,000mm Min. 120mm Components required Maximum length (m) Horizontal RSF flue Flue diameter 60/100 2.5 1 up to 2 2 80/125 11 1 up to 10 2 terminal position (see pages 18 - 19). 60/100 1 1 up to 2 2 1 80/125 9 1 up to 8 2 1 Extension rear flue horizontal using a second 90º bend Extension rear flue horizontal flue assembly Comprises: Components required Maximum length (m) Option 4 Option 1 100mm dia. telescopic flue kit Option 6 Extension flue upwards and horizontal using a second 90º bend Option 7 Extension flue upwards and horizontal using a third 90º bend 1 x internal flue connector bend 1 x flue adaptor 1 x flue connector 2 x wall cover plates 530mm (100mm dia.) of flue duct including terminal Part No. 7 716 191 155 125mm dia. standard flue kit Components required Maximum length (m) 1 x internal flue connector bend Components required Maximum length (m) 1 x flue adaptor 60/100 4 1 up to 4 1 x flue connector 80/125 13 1 up to 12 Min. 120mm 60/100 1 1 up to 2 2 80/125 9 1 up to 8 2 2 x wall cover plates Option 5 965mm (125mm dia.) of flue duct including terminal Option 2 Part No. 7 716 191 157 Extension rear flue horizontal using a 90º bend Accessories Components Part no. Components required Maximum length (m) Extension flue upwards and horizontal 60/100 N/A N/A N/A N/A N/A 80/125 7 1 up to 6 3 1 Min. 120mm Description Option 8 60/100 530mm 7 716 191 155 Horizontal telescopic kit Side flue extension using two 45º bends 7 716 191 083 60/100 1m extension 7 716 191 084 60/100 90º bend Components required Maximum length (m) Components required 7 716 191 085 60/100 45º bend Maximum length (m) 7 716 191 133 60/100 Short flue extension 60/100 2.5 1 up to 2 1 80/125 11 1 up to 10 1 60/100 2.5 1 up to 2 1 1 80/125 11 1 up to 10 1 1 7 716 191 164 60/100 Vertical flue adaptor Components required 7 716 191 157 80/125 965mm Horizontal flue kit Maximum length (m) 7 719 001 892 80/125 1m extension 60/100 2.5 1 up to 2 2 80/125 11 1 up to 10 2 7 719 001 891 80/125 90º bend 7 719 001 899 80/125 45º bend 7 716 191 165 80/125 Vertical flue adaptor Deduct 750mm off the total flue length for every 45º bend used. Deduct 1,500mm off the total flue length for every 90º bend used. *The 100mm flue system inclines 2º within the 100mm terminal. 20 21 Greenstar Highflow CDi combi boiler vertical fluing options Option 3 Vertical balanced flue using two 90º bends Option 1 Greenstar Highflow CDi combis offer a choice of 2 different Vertical balanced flue assembly sized vertical RSF systems, 100mm diameter and 125mm diameter. Both systems have different maximum lengths. Pitc roo hed f Options 1 to 3 detail the permissible lengths. Min. 120mm 500mm 300mm Vertical RSF flue Flat roof Flue diameter 100mm 125mm Flue terminal assembly diameter 120mm 135mm 6,400mm 15,000mm 60/100 3.4 1 up to 3 2 1,140mm 1,365mm 80/125 11 1 up to 10 2 Maximum flue length (inc. terminal) Flue terminal assembly length Vertical balanced flue kit Components required Maximum length (m) Comprises: 1 x flue terminal assembly Components required Maximum length (m) 1 x weather sealing collar 60/100 6.4 1 up to 6 1 x fire stop spacer 80/125 15 1 up to 14 1 x vertical flue adaptor 1 x wall bracket Option 2 1 x flue adaptor Vertical balanced flue using two 45º bends Part No. 7 716 191 156 (100mm dia.) Part No. 7 716 191 158 (125mm dia.) Accessories Components Part no. Description Min. 120mm 7 716 191 156 60/100 Vertical 1,140mm kit 7 716 191 083 60/100 1m extension 7 716 191 084 60/100 90º bend 7 716 191 085 60/100 45º bend 7 716 191 133 60/100 Short flue extension 7 716 191 158 80/125 Vertical 1,365mm kit Components required Maximum length (m) 60/100 4.9 1 up to 5 2 80/125 13 1 up to 12 2 7 719 001 892 80/125 1m extension 7 719 001 891 80/125 90º bend 7 719 001 899 80/125 45º bend 22 23 Plume management system options Effective straight flue lengths for telescopic flue with plume management Model Fig. A Max. straight flue Max. straight flue length (L) with max. 60mm dia. plume management system plume management plume management The maximum effective straight flue lengths (L) are stated length (M)* (mm) length (M)* (mm) Highflow 440CDi** 4,000 1,200 minimum and maximum lengths (M) of the plume Highflow 550CDi** 4,000 1,200 management system connected, these lengths must not management outlet 60mm dia. plume management kit Comprises: 1 x terminal elbow 1 x extension 500mm Min. 1,500mm 1 x outlet assembly Opening in building e.g. window 1 x clamp pack Part No. 7 716 191 086 Direction of flue discharge Accessories Components Part no. Description 60mm dia. Plume management kit 7 716 191 087 60mm dia. Extension (1,000mm) 7 716 191 088 60mm dia. 90º Bend 7 716 191 089 60mm dia. 45º Bend (pair) 100mm dia. horizontal telescopic flue lengths with a opposite for the relevant appliance together with the be exceeded. NOTE: Plume management minimum straight length = 500mm 60mm dia. plume management system Plume management maximum straight length = 4,500mm To ensure that the maximum total straight flue length along **For every additional 1,000mm of plume management the plume management route is not exceeded the following length (M), reduce flue length (L) by 700mm – see figures should be added to dimension (M): A and B. Direction of 7 716 191 086 system measuring Fig. B length (L) with min. Re-directing flue discharge from a 60mm dia. plume Plume management system Condensfit II telescopic flue and plume management • 1,500mm for each extra 90º bend • 750mm for each extra 45º bend flue discharge Min. 1,500mm For plume management options with 60mm dia. extensions Opening in building e.g. window refer to page 26. Note: For information on the Condensfit II Telescopic Flue Standard plume management system System and Plume Management Kit, please see The flue terminal outlet has built-in stops to limit rotation Condensfit II telescopic flue and plume management dedicated flue Technical and Specification leaflet for horizontal fluing to allow condensate to run back into system measuring 8 716 112 174. the boiler for safe disposal. Do not attempt to force beyond Fig A the limit stops. Flue length ‘L’ versus plume management kit All plume management sections must rise by at least 4000 condensate flows back into the boiler. L (max) 500mm (min) (M) Effective flue length ‘L’ (mm) 173mm per metre (10º) from the terminal to ensure that Fig B 3500 3000 2500 2000 1500 500mm (M) 1000 500 900 1100 1300 1500 1700 1900 2100 2300 2500 2700 2900 3100 3300 3500 3700 3900 4100 4300 4500 Plume management length allowed ‘M’ (mm) 4,500mm (max) (M) L (max) 700 Use the graph above to determine the permissible plume The effective flue length can be determined by adding management length that can be used with your effective together all the straight flue lengths and the effective flue length ‘L’. lengths of the bends used, 1,500mm for each 90º bend and 750mm for each 45º bend. 24 25 Plume management options See tables below for details of components required. Option 1 Option 3 Option 5 Plume management system Plume management system with extensions and 45º bend Plume management system with extensions and 45º bends Components required Maximum length (mm) Greenstar Highflow CDi series 60mm 500* 1 Option 2 Plume management system with extensions Components required Maximum length (mm) Greenstar Highflow CDi series 60mm 3,750* 1 up to 4 1 Components required Maximum length (mm) Option 4 Plume management system with angled termination Greenstar Highflow CDi series 60mm 3,000* 1 up to 3 2 Components required Maximum length (mm) Greenstar Highflow CDi series 60mm 4,500* 1 up to 4 Components required Maximum length (mm) Greenstar Highflow CDi series 60mm 4,500* 1 up to 4 *NOTE: You must refer to the table on page 25 to calculate *NOTE: You must refer to the table on page 25 to calculate your horizontal flue lengths and plume management length. your horizontal flue lengths and plume management length. 26 27 Installation requirements Natural gas supply Electricity supply Appliances, when on a full output demand, will require up A 3amp fused three pin plug and unswitched shuttered Installation of Greenstar Highflow CDi combis must be in System filling and make-up to 3.1m3/hr of gas for the 440CDi and 4.4m3/hr of gas for socket outlet (both complying with BS 1363) or preferably a accordance with the relevant requirements of the Gas To comply with the Water Authority requirements, the the 550CDi. The gas meter and supply pipes must be double pole isolator with a contact separation of 3mm in all Safety (Installation Use) Regulations at the time of system should be filled via a temporary hose connection to capable of supplying this quantity of gas in addition to the poles supplying the appliance should be used. installation, current IEE Wiring Regulations, local Building the mains cold water supply, with a double check valve demand from any other appliance being served. It is Regulations, Building Standards (Scotland) regulations and assembly and a test point fitted to the mains water side of important that a gas supply pipe of at least 22mm diameter The appliance electrical circuits are also protected by an bylaws of the local Water company and Health and Safety the temporary circuit. This is supplied within the boiler. is used. Under no circumstances should the size of the gas internal 2.5amp fuse. The appliance must be earthed. Document No. 635 (Electricity at Work Regulations 1989). It supply pipe be less that of the appliance inlet connection. should be in accordance with the relevant Valves and joints The meter outlet should be capable of ensuring a nominal recommendations of the following British Standards: It is very important that all valves and joints are able to pressure of 20mbar (8in wg) at the appliance. Particular sustain a working pressure of up to 3bar (45psi). Particular consideration should be given to the resistance to gas flow Water Authority requirement BS 6798; BS 5449; BS 5546:1; BS 5440:1; BS 5440:2; care should be exercised when fitting radiator valves and created by elbows, bends etc. Pipework should be sized to A direct mains cold water connection is permitted by Water BS 6891. only those of high quality to BS 2767:10 should be used. overcome this resistance, details of this are given in the Authorities, however, it is recommended that reference be All other valves and fittings should comply with BS 1010. table below. made to local requirements. In the event of difficulty Gas Safety (Installation and Use) Regulations. All gas contact the Worcester Technical Support Department. appliances must be installed by a Gas Safe registered Loss of water pressure from a sealed system will require person in accordance with the above regulations. Failure to continuous recharging with fresh water and consequential install appliances correctly could lead to prosecution. introduction of air. Air is highly corrosive and will considerably reduce life expectancy of radiators, pumps etc. The manufacturers notes must not be taken in any way as overriding statutory regulations. Mains cold water supply Plastic pipework Total length of gas supply pipe (m) Pipe diameter (mm) Pipe sizing 3 6 9 – Unless the mains pressure is low, a standard 22mm Gas 2.9 – – 15 diameter service pipe is normally suitable. A 22mm hot discharge 8.7 5.8 4.6 22 water distribution pipe to the first branch is recommended rate m3/h 18.0 12.0 9.4 28 thereafter 15mm and/or 10mm to all draw off points. The use of plastic pipework is acceptable. However, some plastics are permeable to oxygen and must be avoided. Only Sealed primary systems Approximate additional length to be allowed (natural gas) Worcester Greenstar Highflow CDi combis are supplied note that the first 600mm of pipework connected to the complete with all the necessary components to form a boiler must be copper. sealed primary system. Included are a pre-plumbed expansion vessel (12 litres), a pressure relief valve (set at Elbows or tees 90º bends be the first connection off the mains supply, in order to Metres Feet Metres Feet 0.50 2 0.3 1 minimise hot water flow reduction when cold water services are operated. The final 600mm of piping to the appliance should be of copper only. Open vented primary systems 3bar), an automatic air vent and a pressure gauge. Cold water connection Wherever possible the cold supply to the appliance should pipework with a polymeric barrier should be used. Please Liquid Petroleum Gas (LPG) supply It is not permissible to install a Greenstar Highflow CDi combi on an open vent system. Cold water pressure An LPG kit is an available accessory for Greenstar Highflow To achieve the stipulated flow rates of 20l/min (4.4gpm)/ accommodate differing system volumes, depending upon CDi combis. The appliances, when on a hot water or full 25l/min (5.5gpm) a working cold water mains pressure of its initial charge pressure, and system pre-pressurisation. output demand, will require up to 2.3kg/hr of gas for the 1.5bar/1.7bar is required. The appliance will operate at a The table below shows the system volume that can be 440CDi and 3.2kg/hr of gas for the 550CDi. The gas tank or minimum working pressure of only 0.5bar (7.5psi) however accommodated under different conditions. If it is found bottles must be capable of supplying this quantity of gas at a reduced hot water flow rate should be expected. that the system volume exceeds that catered for by the a nominal pressure of 37mbar (14.8in wg) at the appliance. Back-flow prevention devices, including water meters, expansion vessel fitted within the appliance, then an extra The table below shows the LPG discharge through varying can prevent the expansion of hot water into the cold vessel should be added as close to the appliance as lengths of pipe and the resistance to flow created by water main. However, this can result in a pressure build-up possible in the heating return pipe. Refer to BS 5449:1 elbows, bends etc. Pipework should be sized so as to that may cause damage to the boiler and household and BS 6798:1 for further information. overcome this resistance. devices such as showers, washing machines etc. In The expansion vessel fitted to the appliance will these cases we recommend that a mini-expansion vessel Total length of gas supply pipe (m) Total system volume – litres (gallons) Initial system pressure (bar) Initial charge pressure (bar) 0.5 1.0 1.5 Pipe diameter (mm) 3 6 9 – 0.5 130 (29) – – Gas discharge 8.0 5.2 4.2 22 1.0 80 (17.5) 102 (22.5) – rate m3/h 15.9 8.8 8.3 28 1.5 43 (9.5) 58 (13) 71 (15.5) 2.0 20 (4.5) 27 (5.9) 33 (7.5) (Part No. 7 716 192 105) be fitted adjacent to the boiler in the cold water main. MAINS WATER EXPANSION VESSEL: A - Mini expansion vessel, Part No. 7 716 192 105 B - Mains water inlet pipe C - Non-return valve D - Boiler D Approximate additional length to be allowed (LPG) A Elbows or tees 28 90º bends C Metres Feet Metres Feet 0.6 2 0.3 1 B 29 Hot water supply Use in hard water areas As with all mains fed systems, the flow rate of water As the maximum temperature of the domestic hot water obtainable from individual taps will vary in relation to the heat exchanger is limited by the electronic control circuit, number of taps operating simultaneously, and will depend there is normally no need for water treatment to prevent upon the cold mains supply available to the property. scale accumulation. Therefore, in order to avoid excessive starvation of flow In areas where exceptional water conditions prevail, to individual taps, flow balancing may be required by the consideration may need to be given to the fitting of a device use of proprietary constant volume flow regulators or capable of preventing scale. In such circumstances the Ball-o-Fix valves. advice of the local water authority should be sought. Hot water systems Warranty Taps and valves Worcester Greenstar Highflow CDi appliances are offered Hot and cold taps and mixing valves used with Greenstar with a full 2 year guarantee* on parts and labour, a 10 year Highflow CDi appliances must be suitable for operating at a warranty* on the primary heat exchanger and a 5 year mains pressure of up to 10bar (150psi) and temperatures warranty* on the plate heat exchanger. Ongoing service and of 65°C (150°F). maintenance contracts can be arranged through the Greenstar Highflow CDi series accessories MT10 mechanical timer MT10RF mechanical RF thermostat DT20 twin channel digital programmer DT20RF digital RF thermostat with twin channel programmer Worcester Part No. 7 716 192 036 Worcester Part No. 7 716 192 037 Worcester Part No. 7 716 192 038 Worcester Part No. 7 716 192 054 DT10RF digistat DT10RF optimiser RT10 room thermostat TD200 text display Worcester Part No. 7 716 192 052 Worcester Part No. 7 716 192 053 Worcester Part No. 7 719 002 505 Worcester Part No. 7 719 002 506 Text display wall mounting socket RS telescopic flue kit (100mm dia.) Horizontal flue kit (125mm dia.) Vertical BF kit (100mm dia.) Worcester Part No. 7 719 002 718 Worcester Part No. 7 716 191 155 Worcester Part No. 7 716 191 157 Worcester Part No. 7 716 191 156 Vertical BF kit (125mm dia.) Vertical flue adaptor (60/100mm) Vertical flue adaptor (80/125mm) 1,000mm extension kit (100mm dia.) Worcester Part No. 7 716 191 158 Worcester Part No. 7 716 191 164 Worcester Part No. 7 716 191 165 Worcester Part No. 7 716 191 083 Worcester Customer Service Department. Showers *Subject to conditions. When a loose head shower with a flexible hose is used over a bath or shower tray, the hose must be fixed so that the head cannot fall closer than 25mm (1in) above the top edge of the spill over level of the relevant bath or shower tray. Alternatively, the feed pipes to the shower should incorporate a double check valve assembly or a check valve and vacuum breaker. With fixed head showers no provision is necessary. The use of a thermostatically controlled shower will give added comfort and safeguard against high hot water temperatures. Bidet The supply of hot and cold water mains direct to a bidet is permitted provided that the bidet is of the overrim water feed type. The outlet(s) should be shrouded and not have any temporary hand held spray attached. No other anti-syphonage arrangements are necessary. Note: For information on the Condensfit II Telescopic Flue System and Plume Management Kit, please see dedicated flue Technical and Specification leaflet 8 716 112 174. 30 31 Greenstar Highflow CDi series accessories Short flue extension 220mm (100mm dia.) Worcester Part No. 7 716 191 133 90º bend (100mm dia.) 1,000mm extension (125mm dia.) Worcester Part No. 7 719 001 892 90º bend (125mm dia.) 45º bend (100mm dia.) Worcester Part No. 7 716 191 085 Support bracket kit (100mm dia.) 45º bend (125mm dia.) Worcester Part No. 7 719 001 899 Plume management kit (60mm dia.) A complete after-sales service As part of the worldwide Bosch Group, Worcester strives to maintain the highest possible standards of after-sales care. All the technical advice you need In addition to the no-nonsense parts and labour warranty Spares applicable to all Worcester boilers, you and your customers Genuine replacement parts for all Worcester boilers are have the assurance that every Worcester boiler is readily available from stock, on a next day delivery basis. manufactured to both the appropriate British and For more information please call your local stockist. European standards. You can find a spares stockist on our website. Worcester Contact Centre Customer Technical Support Should you require support, our fully trained Contact Centre The Worcester Technical Helpline is a dedicated phone staff, based at our head office in Worcester, are ready to line – committed to providing a comprehensive service to take your calls. Whatever your query our contact centre complement the brand name and quality of our products. operators along with our nationwide team of engineers Our experienced team of technical experts provides are ready to help you. answers to queries of a technical nature across the entire Worcester range. Boiler Protection Options Worcester Part No. 7 716 191 084 Extension (60mm dia., 1,000mm) Worcester Part No. 7 719 001 891 90º bend (60mm dia.) Worcester Part No. 7 716 191 092 45º bend (60mm dia.) Worcester Part No. 7 716 191 086 Flat roof flashing kit (100mm & 125mm dia.) Worcester offers boiler protection including service and Worcester also has a pre-sales department, which provides maintenance contracts. Please call the Worcester Contact assistance in selecting a boiler system to suit a particular Centre for further details. application, along with full guidance on installation. As well as this we will also assist in finding a recommended If you do not offer annual service and maintenance installer. For more information please contact the Technical contracts please refer your customers to the Worcester Helpline or alternatively visit our website where literature Contact Centre: can be downloaded at www.worcester-bosch.co.uk Tel: 08457 256 206 Technical Fax: 01905 757 536 Tel: 08705 266 241 Fax: 01905 752 741 Opening Times Worcester Part No. 7 716 191 087 Worcester Part No. 7 716 191 088 Worcester Part No. 7 716 191 089 Worcester Part No. 7 716 191 090 Monday – Friday: 7.00am – 8.00pm Opening Times Saturday: 8.00am – 5.00pm Monday – Friday: 7.00am – 8.00pm Sunday: 9.00am – 12 noon Saturday: 8.30am – 4.00pm Pitched roof flashing kit (100mm & 125mm dia.) Worcester Part No. 7 716 191 091 Note: For information on the Condensfit II Telescopic Flue System and Plume Management Kit, please see dedicated flue Technical and Specification leaflet 8 716 112 174. 32 33 The very best training programmes from Worcester Worcester training courses One stop shop training OFTEC ASSESSMENT We are here to provide you with training and assistance for OFTEC 101 Covering Domestic/Light Commercial Pressure Jet Commissioning and Servicing and Sales & Marketing are just 2 of the courses we now offer Duration 3 day course has established close partnerships with many colleges to help your business grow. Call us on 01905 752526 to OFTEC 105e between a combi, conventional and system boiler are around the UK, equipping them with our latest products. order a full training course portfolio. Covering Domestic/Light Commercial Pressure Jet Boiler Installation substantial, and the technology of each continues to Call us on 01905 752526 to find out when we will be Duration 1 day assessment advance at a rapid pace. running the course of your choice at a college in your area. Worcester has always placed great emphasis on technical College-linked Learning all areas of your business, not just product training. IT Skills support and training for installers and service engineers. As well as offering training at our own centres, Worcester Today this need is greater than ever. The differences Worcester training courses OFTEC 101 & 105e Greenstar CDi gas-fired condensing combi boilers Covering Domestic/Light Commercial Pressure Jet Installation, Commissioning and Servicing Duration 3 day course With the increase of renewables technologies in the UK, the Mobile training Models covered Greenstar 27/30/37/42CDi need for training has never been greater. To complement our training venues across the country, Duration 1 day Greenstar i Junior & Si gas-fired condensing combi boilers we can also bring training to you. Models covered Greenstar 24/28i Junior Greenstar 25/30Si To ensure the highest levels of competence and expertise in the installation of all Worcester products, the company We have mobile vehicles fully equipped with operational runs intensive training courses for installers, commissioning Greenstar gas-fired boilers, dry strip-down models and even engineers and operatives involved with servicing and a Greensource Air to Air Heat Pump, ensuring that quality fault finding. training in a comfortable environment can be achieved on your doorstep! Courses available Duration If it's oil training you require, our 7.5 tonne mobile oil for the installer and commissioning engineers, and a more vehicle is available throughout the country for hands-on in-depth course for the servicing and fault finding engineers. product training and OFTEC assessments. Duration 4 days Duration Mobile OFTEC 1 day Models covered Greenstar Greenstar Greenstar Greenstar Greenstar 12/15/18/24Ri 30/40CDi Conventional FS 30/42CDi Regular 30CDi System 12/24i System Greenstar FX controls CD ROMs/DVDs which are packed with information. Models covered MT10/MT10RF/DT20RF/DT20/DT10RF/TD200/RT10/ FR10/FR110/FW100/ISM1 Duration 1 day Greenstar Danesmoor, Heatslave & Camray high efficiency condensing oil-fired boilers – pre-OFTEC training Models covered Greenstar Danesmoor series Greenstar Heatslave series Greenstar Camray series Call now for more information 01905 752526 Duration Training lab at West Thurrock Academy Dundee Covering Installation, Commissioning and Servicing Duration 2 days Installation, Commissioning and System Design strategically located across the country and includes our Duration 2 days state-of-the-art Academy at the Company Headquarters in Greensource heat pumps – air to water Worcester. This facility has recently been upgraded to Covering Installation, Commissioning and System Design Duration 2 days Bangor include a heat pump training lab, showcasing our range of Bradford Dublin Clay Cross Further academies are located at West Thurrock in Essex, 01905 752526 for more information about a course near All G3 Regulations for the Installation, Servicing and Commissioning of Unvented Cylinders. This course is certified by Logic Certification. Duration 1 day Chemical water treatment Covering Water treatment of domestic heating systems in accordance with BS 7593: 2006 Duration 1 day Greenstore ground source heat pumps Dunfermline Covering Ireland, all offering our full suite of courses. Please phone Covering 1 day Worcester's network of regional training venues is Bradford, Clay Cross in Derbyshire and Bangor in Northern Unvented cylinder course Greenskies solar system Aberdeen ground and air source heat pumps. All above covered throughout the country on the mobile training vehicle as well as in all our centres. 1 day Get on course for a more profitable future now. Training Centres throughout the UK 1 day assessment course Models covered Greenstar Highflow 440/550CDi Greenstar FS 30/42CDi Regular Worcester has produced a selection of Distance Learning Based Learning. Duration Domestic/Light Commercial Pressure Jet Boiler Installation, Commissioning, Servicing and Oil Tank Installation and Associated Controls Duration www.worcester-bosch.co.uk for information on Web Oil Tank Installation and Associated Controls Covering Greenstar Highflow CDi & FS CDi regular floor standing gas-fired condensing combi and regular boilers Distance Learning/Web Based Learning Call 01905 752556 for your copies, or visit Covering OFTEC 101/105e/600e 1 day Greenstar system & regular gas-fired condensing boilers Our training facilities offer a number of courses suitable OFTEC 600a Greensource heat pumps – air to air Covering Installation, Commissioning and System Design Duration 1 day Worcester West Thurrock you. Each course is run by specialist trainers and is superbly equipped to deliver a combination of classroom theory and practical hands-on experience that’s second to none. 34 www.worcester-bosch.co.uk NB: Please note to attend OFTEC courses you must have a minimum of 12 months’ experience installing/servicing oil boilers. For inexperienced candidates, our Greenstar Danesmoor, Heatslave and Camray course offers pre-OFTEC training. 35 Useful numbers Sales Contact Centre Tel: 01905 752640 Tel: 08457 256206 Fax: 01905 456445 Fax: 01905 757536 Livingston (Scotland) Fax: 01506 441687 Spare Parts Training Tel: 01905 752576 Tel: 01905 752526 Fax: 01905 754620 Fax: 01905 752535 Technical (Pre & Post Sales) Literature Line Tel: 08705 266241 Tel: 01905 752556 Fax: 01905 752741 or download instantly from our website www.worcester-bosch.co.uk In partnership with The Council for Registered Gas Installers (N. Ireland only) This leaflet is accurate at the date of printing, but may be superseded and should be disregarded if specification and/or appearances are changed in the interest of continued improvement. The statutory rights of the consumer are not affected. Part No. 8 716 106 250 D 05/09 Worcester, Bosch Group, Cotswold Way, Warndon, Worcester, WR4 9SW Tel: 01905 754624 Fax: 01905 754619 BBT1973 Worcester, Bosch Group is a brand name of Bosch Thermotechnology Ltd.
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