The Greenstar Highflow CDi gas-fired condensing combi boiler series Technical and specification information NEW PRODUCT 1 Worcester and you. Making a difference. Working together for many years, heating We’re a leading British company, professionals and Worcester have been employing approximately 2,000 people at making a real difference in hundreds of our headquarters and manufacturing thousands of homes across the UK. We are plants in Worcester and at Clay Cross in recognised as a market leader in high Derbyshire, including a nationwide network efficiency, condensing boiler technology and of over 300 Service Engineers and over 80 are also committed to providing renewable technically-trained Field Sales Managers. energy solutions. As part of Europe’s largest supplier of As part of the Bosch Group, our products are heating products, Worcester, Bosch Group designed and manufactured to provide the has the UK-based resources and support high levels of quality and reliability which are capability to offer you the value-added synonymous with the Bosch name solutions we feel you deserve. throughout the world. 2 Worcester, Bosch Group headquarters “At Worcester we recognise the vital role Contents Page you, our customer, has in the specification The Greenstar Highflow CDi gas-fired 4-7 and installation of ‘A’ rated, energy efficient condensing combi boiler series appliances in homes across the UK. We will Optional plug-in controls 8-9 continue to invest in our products, people, Technical data 10 facilities and added value services such as The inside story 11 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 Greenstar Highflow CDi series vertical 22 - 23 Richard Soper, fluing options Managing Director, Worcester, Bosch Group Plume management system options 24 - 27 Installation requirements 28 - 30 The Greenstar Highflow CDi series accessories 31 - 32 After-sales 33 Worcester training 34 - 35 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 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 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 boilers achieve around 78% efficiency. Therefore by the larger household and all-round value for money. upgrading to a Greenstar Highflow CDi boiler, consumers can reduce their gas bills as well as their carbon footprint. 4 The Greenstar Highflow CDi combi series at a glance Features 20 & 25 litre/minute flow rate Output kW to DHW Min Max Flow rate at 35ºC Δ T CH temperature control DHW temperature control 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 5 The Greenstar Highflow CDi condensing combi boiler series A condensing boiler is more efficient due to its ability to Modulating central heating and hot water outputs extract more heat from the flue gases normally lost to the combined with separate consumer controls, also mean environment through the flue system. that comfortable temperature levels for both can be set independently of each other. Greenstar Highflow CDi combis use a proven aluminiumsilicon heat cell with an extra large surface area. Greenstar Highflow CDi combis are supplied as standard suitable for sealed primary water systems. The appliance As the flue gases pass through the heat exchanger this contains a 12 litre expansion vessel, 3bar pressure relief 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. Fluing 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. an exceptionally high level of operating efficiency. Gas This higher efficiency is recognised within section L of the The Greenstar Highflow CDi is manufactured in both natural Building Regulations, subsequently achieving a higher SAP gas and Liquid Petroleum Gas (LPG) variants. or NHER rating. The separate plated DHW heat exchanger combined with the thermal store ensures that hot water is delivered instantly to the outlet being operated. The advantages of a combi boiler 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 with significant savings on running and installation costs. fuel bill. 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 less risk of freezing and flooding), and none of the consumption can be significant. connecting pipework. Regular Combi boiler layout boiler layout Feed and expansion cistern Cold water storage cistern Hot water cylinder Hot water to baths, showers and basins etc 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 Operation • Worcester Greenstar Highflow CDi combis can be sited underneath a worktop as servicing can be undertaken Hot water mode from the front. A removable section of worktop is With the appliance in a standby condition, i.e. thermal store recommended should you require top access for or heatbank at temperature set by the hot water thermostat, maintenance work a demand for hot water will cause the flow turbine to energise the pump and circulate primary hot water around Hot water performance the boiler and the plated water to water heat exchanger. The burner will ramp-up at its maximum setting and modulate Greenstar Highflow 440CDi accordingly to maintain the temperature of the heatbank. continue to operate until the heatbank has returned to the required temperature. Priority is always given to the production of domestic hot water. Should the central heating be in operation when a hot water demand is made, the supply to the radiators will be Temperature ºC ∆ T 42.5 When hot water is no longer required the appliance will temporarily interrupted. 50 litres 40 72 litres 37.5 100 litres 35 130 litres 32.5 30 Central heating mode 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, Time in minutes Nominal flow rate 4.4gpm (20l/min) Cold water inlet 10ºC (50ºF) the diverter valve will open and primary water will circulate around the heating system. The burner will light at the minimum setting and ramp upwards to meet the system demand. The radiators will heat up to the temperature set Greenstar Highflow 550CDi by the fascia mounted heating temperature controller 42.5 Application of Greenstar Highflow CDi combis • Worcester Greenstar Highflow CDi combis deliver domestic hot water at a flow rate of 20 litres/min (4.4gpm) & 25 litres/min (5.5gpm), making the appliances ideally suited for use in medium to large sized family homes, 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 hot water at mains pressure, they are ideally suited to Time in minutes Nominal flow rate 5.5gpm (25l/min) Cold water inlet 10ºC (50ºF) providing a powerful shower • Worcester Greenstar Highflow CDi combis can be sited where space and water storage is a problem • Worcester Greenstar Highflow CDi combis may be used to 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 The flue can be run horizontally or vertically with • 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 fascia-mounted controls offer simple plug-in connection to the boiler circuit board. Mechanical timers MT10 mechanical timer The simplest Worcester control device – an easy-to-use analogue clock for setting heating time periods. It plugs into the boiler fascia via a pre-prepared plug and socket. MT10RF mechanical RF thermostat Has an analogue display for setting night and day time periods and temperature. The 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. These mechanical timers do not control domestic hot water pre-heat. If this function is required please select a digital programmer. Alternatively, an additional single channel timer for hot water control, could be wired in remotely. Digital and wireless programmers and room thermostats DT20RF digital RF thermostat with twin channel programmer 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 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. DT10RF digistat A familiar wall-mounted 24 hour programmable RF digital thermostat combined with a fascia mounted single channel programmer to time the hot water combi preheat functions. The programmer includes a built-in receiver for the room thermostat and all of the functionality of the DT20. 8 DT10RF optimiser 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 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. TD200 text display* 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-touse full text display providing more information than standard digital controls. A hard wired room thermostat is available to provide optimum start functionality. RT10 room thermostat* A hard wired optimising room temperature controller with digital display for use with the TD200. The display shows current and desired temperature and an advance button allows the user to move to the next heating switch point. TD200 wall mounting socket* A Worcester branded wall mounting socket which allows the TD200 to be hard wired away from the boiler. *All three of the above are classed as an Intelligent Combi package. Increased SAP ratings As well as the Greenstar Highflow CDi appliances achieving very high SAP ratings for dwellings, the addition of the optimising temperature controller further increases these ratings as well as being part of the recommended best practice, as covered by the CHeSS design standard. TD200 text display 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) • (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 10 • The Greenstar Highflow CDi condensing combi boiler series – inside story 13 1 2 12 11 3 14 15 16 17 18 4 5 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 11 Installing the Greenstar Highflow CDi series Siting of appliance Site preparation/portability General Greenstar Highflow CDi appliances are supplied with a floor The appliance is not suitable for external installation. The mounted pre-plumbing jig. The jig enables all gas and water floor on which the boiler is to be mounted should be services to be pre-plumbed and tested prior to fitting the capable of supporting an overall weight of approximately boiler. 160kg. 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. and servicing. Pipework connections and casing dimensions Installation clearances The minimum space required to install the boiler only. 1,200mm 610mm 600mm 1,450mm A 5mm 5mm C B 600mm Cabinet dimensions (mm) Service clearances A 850 B 600 C 600 The minimum space required to service the boiler only. 1,200mm 610mm 865mm 15mm A 5mm B C 5mm 250mm* Pipework connections A CH flow *Space required for unvented areas with a removable door or panel 12 D E 600mm 22mm B DHW flow 22mm C Gas inlet 22mm D Cold main inlet 22mm E CH return 22mm 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 efficiency and operating status of the appliance. Depending 22mm polypropylene. The pipe should be extended and on operating temperatures, the appliance will condense in run away from the appliance with a constant fall of 3º or at both heating and hot water modes and may generate up least 50mm in every metre away from the boiler. to 2.7 litres of condensate per hour for the 440CDi and 3.7 litres per hour for the 550CDi. The condensate pipe can terminate into any one of four areas (see next page). Condensate termination and route Whilst all of the methods are acceptable it is best practise 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 in extreme weather. Best practise is not to run external 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 4,500mm from floor level. After this point the condensate continues down the 22mm rigid pipework to the outlet using gravity. Cut off excess pipework Max. 4,500mm Min. 200mm Condensate pump • The flexible plastic pipe can be reduced in length to suit the installation circumstances. The pipework must follow one of the options shown on the next page. 13 Condensate termination and route Condensing boiler Condensing boiler Visible air break at plug hole 100mm 22mm min. 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 22mm min. dia. plastic pipe 75 mm min. Minimum 450mm and up to 3 storeys Invert 75mm sink waste trap Internal sink/washing machine drain Soil and vent stack 22mm min. dia. condensate drainage pipe, max external length 3 metres 500mm min. Soil & vent stack Condensing boiler Insulation or increase pipe size External drain pipe into foul water sewer Condensate drainage pipe can be run above or below ground Diameter 100mm min. plastic tube Bottom of tube sealed Limestone chippings 25mm 22mm min. dia. plastic condensate drainage pipe running through the external wall Air gap Insulation or increase pipe size Drainage holes 43mm 90° M & F bend Hole depth 400mm min. by 300mm dia. External condensate absorption point (unsuitable for clay soil types) 14 External air break External air break when using a foul water down pipe 68mm dia. PVC-u strap on fitting External condensate pipework 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 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 clearances must be maintained be possible, and the only available route is external, the following conditions should be observed: • An access door is required to install, service and maintain the boiler and any ancillary equipment • 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 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. Compartment installation 800mm 800mm The appliance may be installed in any room, although 50mm particular attention is drawn to the requirements of the IEE regulations applicable and in Scotland the electrical provisions with respect to installation in a room containing 900mm a bath or shower. Air supply 100mm** 1. The room in which the appliance is installed does not require a dedicated air vent. 100mm** 200mm* 2. If the appliance is installed in a cupboard or compartment with dimensions that allow the following minimum clearances, then no ventilation is required: Compartment installation Position of appliance 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 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 BS 5440. A minimum of 2 air vents (A) must be fitted, one at low 800mm 625mm level and another at high level onto the same wall using the same air for circulation. Minimum free air required for venting: 100mm 2,300mm 25mm • For air directly from outside: 440CDi 155cm2 per vent 200mm 550CDi 220cm2 per vent • 100mm For air from internal space/room: 440CDi 310cm2 per vent 550CDi 440cm2 per vent 25mm 100mm A 16 Boiler location & clearances Bathrooms IMPORTANT: Any switch or appliance control using mains electricity must A boiler with a mechanical timer or RF mechanical timer not be within reach of a person using the bath or shower. with a room thermostat must only installed outside the shaded area. Electrical switches, fused spurs and socket outlets must not be situated in the bathroom. Additional Residual Current Device (RCD) protection may be required. A boiler fitted with a non-mechanical timer or with no timer can be installed in zone 2 or outside the shaded area. Refer to the latest IEE wiring regulations. 600mm 600mm 750mm 1 1 2 2 2,250mm 2,250mm 600mm 750mm 2,250mm 2 1 1 2 2,250mm 600mm radius 17 Flue terminal positioning General position 1. The terminal must not cause an obstruction nor the 4. The air inlet/outlet duct and the terminal of the boiler discharge a nuisance. Particular care should be must not be closer than 25mm to any combustible exercised with regards to the pluming of the flue material. Detailed recommendations on protection of gases and any increase in noise levels. combustible materials are given in BS 5440:1. 2. If a terminal is fitted less than 2 metres above a The flue system must be installed and terminated in surface to which people have access, then a guard accordance with the recommendations of BS 5440:Part 1. must be fitted. A terminal protective guard is available from Tower Flue Components, Vale Rise, Tonbridge. Tel: (01732) 351555. The terminal guard must be securely fixed to the wall using suitable plugs and corrosion resistant screws. The guard must such that 300mm 500mm clearance to any vertical structure on a roof, 600mm to room sealed flue or 1,500mm to an open flue. there is a gap of 50mm between the end of the terminal and be symmetrically positioned about the 500mm terminal assembly and spaced the condense compatible guard. Velux 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, i.e. near security lighting, should be avoided. 200mm Drainpipe 200mm below eaves and 75mm below gutters, pipes and drains. 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. 25mm 300mm 600mm minimum clearance from a skylight to a vertical flue. 1,500mm 500mm 600mm 500mm 600mm Windo Boundary 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 rise by 3° or at least 50mm for each metre away from the boiler to ensure condensate flows back into the boiler. 18 1,000mm 1,000mm 50mm fall 100mm fall If plume management is utilised, the clearance from the flue air inlet to any opening can be decreased to 150mm in all cases, as long as the clearance from the flue outlet to any opening is maintained as shown on this diagram. Flue exhaust outlet Note: when fitting the plume management kit beneath a balcony, a minimum of 500mm must be maintained between the air inlet & flue exhaust outlet. NOTES: Plume management kits are available for 100mm horizontally terminated flues. Please refer to the installation instructions supplied with the plume management kits. If plume redirection is utilised, the clearance from any opening must be increased in the direction of the plume to 1,500mm. Air intake Opening in building 1,500mm between a vertical Dormer flue terminal and a window window or dormer window. Min. 1,500mm Direction of flue discharge 1,500mm 400mm 2,000mm below a Velux window, 600mm above or to either side of the Velux window. ow 400mm from a pitched roof or in regions with heavy snow fall 500mm. Plume deflector The flue cannot be lower than 1,000mm from the top of a light well due to the build up of combustion products. 1,200mm 1,200mm between terminals facing each other. 300mm 300mm to an internal or external corner. 300mm 300mm 300mm above, below and either side of an opening door, air vent or opening window. NOTE: All measurements are the minimum clearances required. Terminals must be positioned so to avoid combustion products entering the building. Clearance no less than 200mm from the lowest point of the balcony or overhang. NOTE: Installations in carports are not recommended. 300mm 500mm Vertical flue clearance 500mm to non-combustible building material, and 1,500mm clearance to 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 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. Horizontal RSF flue • Because the appliance operates at high efficiency a Flue diameter 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 terminal position (see pages 18 - 19). Option 1 100mm dia. telescopic flue kit Extension rear flue horizontal flue assembly Comprises: 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 1 x internal flue connector bend 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 2 x wall cover plates 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. Description 60/100 530mm 7 716 191 155 Horizontal telescopic kit 7 716 191 083 60/100 1m extension 7 716 191 084 60/100 90º bend 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 7 716 191 164 60/100 Vertical flue adaptor 7 716 191 157 80/125 965mm Horizontal flue kit 7 719 003 666 80/125 1m extension 7 719 003 664 80/125 90º bend 7 719 003 665 80/125 45º bend 7 716 191 165 80/125 Vertical flue adaptor *The 100mm flue system inclines 2º within the 100mm terminal. 20 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. Option 3 Option 6 Extension flue upwards and horizontal using a second 90º bend Extension rear flue horizontal using 45º bends Min. 120mm Components required Maximum length (m) 60/100 2.5 1 up to 2 2 80/125 11 1 up to 10 2 Components required Maximum length (m) Option 4 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 Option 7 Extension flue upwards and horizontal using a third 90º bend Components required Maximum length (m) Min. 120mm 60/100 1 1 up to 2 2 80/125 9 1 up to 8 2 Option 5 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 Option 8 Side flue extension using two 45º bends Components required Maximum length (m) 60/100 2.5 1 up to 2 1 1 80/125 11 1 up to 10 1 1 Components required Maximum length (m) 60/100 2.5 1 up to 2 2 80/125 11 1 up to 10 2 21 Greenstar Highflow CDi combi boiler vertical fluing options 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. 500mm 300mm Vertical RSF flue Flue diameter 100mm 125mm Flue terminal assembly diameter 120mm 135mm 6,400mm 15,000mm 1,140mm 1,365mm Maximum flue length (inc. terminal) Flue terminal assembly length Vertical balanced flue kit Components required Maximum length (m) Comprises: 1 x flue terminal assembly Flat roof 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 7 719 003 666 80/125 1m extension 7 719 003 664 80/125 90º bend 7 719 003 665 80/125 45º bend 22 Components required Maximum length (m) 60/100 4.9 1 up to 5 2 80/125 13 1 up to 12 2 Option 3 Vertical balanced flue using two 90º bends Min. 120mm Components required Maximum length (m) 60/100 3.4 1 up to 3 2 80/125 11 1 up to 10 2 23 Plume management system options Re-directing flue discharge from a 60mm dia. plume Plume management system 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 Direction of 7 716 191 086 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) flue discharge Min. 1,500mm Opening in building e.g. window Standard plume management system The flue terminal outlet has built-in stops to limit rotation Condensfit II telescopic flue and plume management for horizontal fluing to allow condensate to run back into system measuring the boiler for safe disposal. Do not attempt to force beyond Fig A the limit stops. All plume management sections must rise by at least 173mm per metre (10º) from the terminal to ensure that condensate flows back into the boiler. L (max) 500mm (min) (M) Fig B 500mm (M) 4,500mm (max) (M) L (max) 24 Effective straight flue lengths for telescopic flue with plume management Model Fig. A Condensfit II telescopic flue and plume management system measuring Fig. B Max. straight flue Max. straight flue length (L) with min. 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 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. • 1,500mm for each extra 90º bend • 750mm for each extra 45º bend For plume management options with 60mm dia. extensions refer to page 26. 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. Flue length ‘L’ versus plume management kit Effective internal flue length ‘L’ (mm) 4000 3500 3000 2500 2000 1500 1000 500 700 900 1100 1300 1500 1700 1900 2100 2300 2500 2700 2900 3100 3300 3500 3700 3900 4100 4300 4500 Plume management length allowed ‘M’ (mm) 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. 25 Plume management options See tables below for details of components required. Option 1 Option 3 Plume management system Plume management system with extensions and 45º bend 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 Option 4 Plume management system with angled termination 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 *NOTE: You must refer to the table on page 25 to calculate your horizontal flue lengths and plume management length. 26 4,500* 1 up to 4 Option 5 Plume management system with extensions and 45º bends Components required Maximum length (mm) Greenstar Highflow CDi series 60mm 3,000* 1 up to 3 2 *NOTE: You must refer to the table on page 25 to calculate your horizontal flue lengths and plume management length. 27 Installation requirements Installation of Greenstar Highflow CDi combis must be in System filling and make-up accordance with the relevant requirements of the Gas To comply with the Water Authority requirements, the Safety (Installation Use) Regulations at the time of system should be filled via a temporary hose connection to installation, current IEE Wiring Regulations, local Building the mains cold water supply, with a double check valve Regulations, Building Standards (Scotland) regulations and assembly and a test point fitted to the mains water side of bylaws of the local Water company and Health and Safety the temporary circuit. This is supplied within the boiler. Document No. 635 (Electricity at Work Regulations 1989). It should be in accordance with the relevant Valves and joints recommendations of the following British Standards: It is very important that all valves and joints are able to sustain a working pressure of up to 3bar (45psi). Particular BS 6798; BS 5449; BS 5546:1; BS 5440:1; BS 5440:2; care should be exercised when fitting radiator valves and BS 6891. only those of high quality to BS 2767:10 should be used. All other valves and fittings should comply with BS 1010. Gas Safety (Installation and Use) Regulations. All gas 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. Plastic pipework The use of plastic pipework is acceptable. However, some plastics are permeable to oxygen and must be avoided. Only Sealed primary systems pipework with a polymeric barrier should be used. Please 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 Open vented primary systems 3bar), an automatic air vent and a pressure gauge. It is not permissible to install a Greenstar Highflow CDi The expansion vessel fitted to the appliance will combi on an open vent system. accommodate differing system volumes, depending upon its initial charge pressure, and system pre-pressurisation. The table below shows the system volume that can be accommodated under different conditions. If it is found that the system volume exceeds that catered for by the expansion vessel fitted within the appliance, then an extra vessel should be added as close to the appliance as possible in the heating return pipe. Refer to BS 5449:1 and BS 6798:1 for further information. Total system volume – litres (gallons) Initial system pressure (bar) 28 Initial charge pressure (bar) 0.5 1.0 1.5 0.5 130 (29) – – 1.0 80 (17.5) 102 (22.5) – 1.5 43 (9.5) 58 (13) 71 (15.5) 2.0 20 (4.5) 27 (5.9) 33 (7.5) Natural gas supply Electricity supply Appliances, when on a full output demand, will require up A 3amp fused three pin plug and unswitched shuttered 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 the 550CDi. The gas meter and supply pipes must be double pole isolator with a contact separation of 3mm in all capable of supplying this quantity of gas in addition to the poles supplying the appliance should be used. demand from any other appliance being served. It is important that a gas supply pipe of at least 22mm diameter The appliance electrical circuits are also protected by an is used. Under no circumstances should the size of the gas internal 2.5amp fuse. The appliance must be earthed. supply pipe be less that of the appliance inlet connection. The meter outlet should be capable of ensuring a nominal Mains cold water supply pressure of 20mbar (8in wg) at the appliance. Particular consideration should be given to the resistance to gas flow Water Authority requirement created by elbows, bends etc. Pipework should be sized to A direct mains cold water connection is permitted by Water overcome this resistance, details of this are given in the Authorities, however, it is recommended that reference be table below. made to local requirements. In the event of difficulty contact the Worcester Technical Support Department. 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. Approximate additional length to be allowed (natural gas) Cold water connection Wherever possible the cold supply to the appliance should 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. Liquid Petroleum Gas (LPG) supply Cold water pressure An LPG kit is an available accessory for Greenstar Highflow To achieve the stipulated flow rates of 20l/min (4.4gpm)/ CDi combis. The appliances, when on a hot water or full 25l/min (5.5gpm) a working cold water mains pressure of 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 440CDi and 3.2kg/hr of gas for the 550CDi. The gas tank or minimum working pressure of only 0.5bar (7.5psi) however bottles must be capable of supplying this quantity of gas at a reduced hot water flow rate should be expected. a nominal pressure of 37mbar (14.8in wg) at the appliance. Back-flow prevention devices, including water meters, The table below shows the LPG discharge through varying can prevent the expansion of hot water into the cold lengths of pipe and the resistance to flow created by water main. However, this can result in a pressure build-up elbows, bends etc. Pipework should be sized so as to that may cause damage to the boiler and household overcome this resistance. devices such as showers, washing machines etc. In these cases we recommend that a mini-expansion vessel Total length of gas supply pipe (m) Pipe diameter (mm) 3 6 9 – Gas discharge 8.0 5.2 4.2 22 rate m3/h 15.9 8.8 8.3 28 (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 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 Worcester Customer Service Department. Showers 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. 30 *Subject to conditions. 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 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. 31 Greenstar Highflow CDi series accessories Short flue extension 220mm (100mm dia.) 1,000mm extension (125mm dia.) 45º bend (100mm dia.) 45º bend (125mm dia.) Worcester Part No. 7 716 191 133 Worcester Part No. 7 719 003 666 Worcester Part No. 7 716 191 085 Worcester Part No. 7 719 003 665 90º bend (100mm dia.) 90º bend (125mm dia.) Support bracket kit (100mm dia.) Plume management kit (60mm dia.) Worcester Part No. 7 716 191 084 Worcester Part No. 7 719 003 664 Worcester Part No. 7 716 191 092 Worcester Part No. 7 716 191 086 Extension (60mm dia., 1,000mm) 90º bend (60mm dia.) 45º bend (60mm dia.) Flat roof flashing kit (100mm & 125mm dia.) 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 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 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 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: 0844 892 3366 Fax: 01905 752 741 Opening Times 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 33 The very best training programmes from Worcester Worcester has always placed great emphasis on technical College-linked Learning 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 has established close partnerships with many colleges between a combi, conventional and system boiler are around the UK, equipping them with our latest products. substantial, and the technology of each continues to Call us on 01905 752526 to find out when we will be advance at a rapid pace. running the course of your choice at a college in your area. With the increase of renewables technologies in the UK, the Mobile training need for training has never been greater. To complement our training venues across the country, we can also bring training to you. 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 Our training facilities offer a number of courses suitable 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. Distance Learning/Web Based Learning Worcester has produced a selection of Distance Learning CD ROMs/DVDs which are packed with information. Call 01905 752556 for your copies, or visit www.worcester-bosch.co.uk for information on Web Based Learning. Get on course for a more profitable future now. Call now for more information 01905 752526 Aberdeen Training lab at West Thurrock Academy Dundee Training Centres throughout the UK Dunfermline Worcester's network of regional training venues is strategically located across the country and includes our state-of-the-art Academy at the Company Headquarters in Worcester. This facility has recently been upgraded to Bangor include a heat pump training lab, showcasing our range of ground and air source heat pumps. Bradford Dublin Clay Cross Further academies are located at West Thurrock in Essex, Bradford, Clay Cross in Derbyshire and Bangor in Northern Ireland, all offering our full suite of courses. Please phone 01905 752526 for more information about a course near 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. www.worcester-bosch.co.uk 34 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 to help your business grow. Call us on 01905 752526 to OFTEC 105e order a full training course portfolio. Covering Domestic/Light Commercial Pressure Jet Boiler Installation Duration 1 day assessment all areas of your business, not just product training. IT Skills 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 Models covered Greenstar 27/30/37/42CDi Duration 1 day Greenstar i Junior & Si gas-fired condensing combi boilers Models covered Greenstar 24/28i Junior Greenstar 25/30Si Duration OFTEC 600a Covering Oil Tank Installation and Associated Controls Duration 1 day assessment course OFTEC 101/105e/600e 1 day Covering Models covered Greenstar Highflow 440/550CDi Greenstar FS 30/42CDi Regular Domestic/Light Commercial Pressure Jet Boiler Installation, Commissioning, Servicing and Oil Tank Installation and Associated Controls Duration 4 days Duration Mobile OFTEC Greenstar Highflow CDi & FS CDi regular floor standing gas-fired condensing combi and regular boilers 1 day Greenstar system & regular gas-fired condensing boilers Models covered Greenstar Greenstar Greenstar Greenstar Greenstar Duration 12/15/18/24Ri 30/40CDi Conventional FS 30/42CDi Regular 30CDi System 12/24i System 1 day Greenstar FX controls Models covered MT10/MT10RF/DT20RF/DT20/DT10RF/TD200/RT10/ FR10/FR110/FW100/ISM1 Duration All above covered throughout the country on the mobile training vehicle as well as in all our centres. Unvented cylinder course Covering 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 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 Duration 1 day Greenskies solar system Covering Installation, Commissioning and Servicing Duration 2 days Greenstore ground source heat pumps Covering Installation, Commissioning and System Design Duration 2 days Greensource heat pumps – air to water Covering Installation, Commissioning and System Design Duration 2 days Greensource heat pumps – air to air Covering Installation, Commissioning and System Design Duration 1 day 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 Customer Service Sales Engineer Appointments Tel: 01905 752640 Email: [email protected] Fax: 01905 456445 or telephone 0844 892 3000 Spare Parts Enquiries Tel: 01905 752576 Email: [email protected] Fax: 01905 754620 or telephone 0844 892 3000 Technical Helpline (Pre & Post Sales) Guarantee Registration Tel: 0844 892 3366 To register your Worcester guarantee, Fax: 01905 752741 please visit our website or telephone 0844 892 2442 Renewables Technical Helpline Email: [email protected] or telephone 0844 892 4010 Training Tel: 01905 752526 Fax: 01905 752535 Literature Email: [email protected] or download instantly from our website or telephone 0844 892 9800 Calls to the listed 0844 numbers are charged at up to 3 pence per minute from BT land lines. Calls from mobiles and some other networks may vary. Calls to and from Bosch Thermotechnology Ltd may be recorded for training and quality assurance purposes. 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 E 01/10 PAPERS MADE WITH FREE TM 100% CHLORINE BLEACHED PULP Worcester, Bosch Group, Cotswold Way, Warndon, Worcester, WR4 9SW Tel: 0844 892 9900 Fax: 01905 754619 BBT2163 Worcester, Bosch Group is a brand name of Bosch Thermotechnology Ltd.
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