Bosch GREENSTAR HEATSLAVE II EXTERNAL 12/18 Service Manual

1Technical and Specifi cation InformationGreenstar Heatslave II oil-fi red condensing combi boiler rangeGreenstar Heatslave II Internal SeriesGreenstar

10Keeping you and your customers in controlThe Greenstar Heatslave II features the revolutionary Heatronic 4i control unit which provides accurate and

11As part of the Bosch Group, Worcester is committed to new product development, economical use of heating systems and environmental protection. As pa

12Product AModelname DHWefficiencybandCHefficiency band MaximumheatingoutputSoundpowerlevelWhat is ErP?The ErP Directive, which is a new regulation se

1313131313What about systems that contain different products? In these circumstances, there is a responsibility to provide a package label when combin

Inside story – Greenstar Heatslave II internal condensing combi boiler series14Expansion vessel (removed from bracket)Diverter valveAuto air ventDHW p

1515Technical dataBoilerGreenstar Heatslave II 12/18Greenstar Heatslave II 18/25Greenstar Heatslave II 25/32 Height855mm 855mm 855mmWidth520mm 520mm 5

16Inside story – Greenstar Heatslave II External condensing combi boiler seriesDiverter valveAuto air ventFlue overheat resetDHW plate heat exchangerL

17Technical dataBoilerGreenstar Heatslave II External 12/18Greenstar Heatslave II External 18/25Greenstar Heatslave II External 25/32 Height950mm 950m

18Siting of applianceGreenstar Heatslave II oil-fired appliances are not suitable for external installation unless a suitable enclosure is provided. T

1919Conventional flue† – minimum air vent area (cm2) for appliances installed in a compartmentInternal ventilation* External ventilation**kW High leve

2Worcester and you. Making a difference.As part of the Bosch Group, Worcester products are designed and manufactured to provide customers with the hig

20Casing dimensionsPipework connectionsA to G (below) show the flue and pipe outlets (mm):Note: For servicing purposes, keep the condensate and pressu

21Siting of applianceGreenstar Heatslave II External appliances are suitable for external installation only. Appliances should be installed at a suita

22Pipework connectionsDescription Heatslave II External 12/18 & 18/25 Heatslave II External 25/32CH flow/heating vent 22mm dia. plain ended coppe

23Installation requirementsInstallation regulationsThe appliance should be installed by a competent person who is aware of the Health and Safety at Wo

24*Terms and conditions apply.Water supplyThe following are general requirements and if necessary the advice of the local water company should be soug

25Oil supplyAK BCHEFDBBN300mmMin.4m Max.GJFig. 10 Single pipe system – Heatslave IIAK BCNBEFDLGJB150mm3.5m Max.HFig. 11 Two pipe system – Heatslave

26Fig. 10 Single pipe system – Heatslave II ExternalFig. 11 Two pipe system – Heatslave II ExternalFig. 12 Single pipe lift system with de-aerator

27Supply pipeThe oil supply pipe itself would normally be annealed copper tube with a protective plastic coating which is easily manipulated around be

28A highly effective solution from the brand you can trustThe Worcester Greenstar System Filter has been specifi cally designed to combat the damaging

29Features BenefitsHighly effective filter Safeguards the boiler against damage and protects the efficiency of the system. Saves up to 6% a year on en

3Contents PageThe Greenstar condensing combi boiler range 4 - 5 Why choose Worcester? 6Heatslave II designed with installation and servicing in mind

30For full technical information on pipe size, insulation and different condensate pipework methods, please see Installation, Commissioning and Servic

3131Condensatedischarge from boilerUniversalconnectorPipeworktransitionInsulate &increase pipe size to 32mmExternalrain waterpipe intofoul waterEx

32With climate change and extreme weather variations becoming increasingly common, and with very cold winters with temperatures as low as -20°C being

331. Foam backing with double-sided tape2. Siphon mounting screws3. Siphon body4. Foam insert5. Foam cover122345FittingEase of installationThe Conde

34Horizontal and vertical flue terminal positioningAll measurements in millimetresKey to illustration1. 600mm distance to a boundary, unless it will

352m1m52mm104mm2,500DrainpipeExternaloil boiler750or window300300600121314910117. Minimum 600mm straight fl ue before any bend on a conventional fl u

36Greenstar Heatslave II combi boiler rangehorizontal fluing options (internal models)Flue diameter 125mmGreenstar Heatslave II seriesMinimum fl ue len

3737Option 1: Standard rear fl ue assemblyComponentsPart No. 125mm7 716 190 064Minimum length (mm) & no. of components requiredGreenstar Heatslave

38Greenstar Heatslave II combi boiler rangevertical fluing options (internal models)The Greenstar Heatslave II combi boiler range has a 125mm diameter

3939Option 2: Vertical balanced fl ue system maximum heightComponentsPart No. 125mm7 716 190 103 7 716 190 033Maximum lengths (mm) & no. of compone

4The Greenstar Heatslave IIcondensing combi boiler rangeWorcester has always understood that, as the market leader for heating and hot water, it is ou

40Greenstar Heatslave II External combi boiler range fluing optionsGreenstar Heatslave II External componentsComponents Part No. Description125mm diam

41Plume management terminal positioningDoorBalconyBoundaryDrainpipe2451600200200300600600300150150150150600WindowWindow25300Window±45°Flue exhaustoutl

42Plume management system optionsGreenstar Heatslave II (internal) seriesPlume management system measuringNote: All boilers have a maximum permissible

4343Plume management system with extensions and two 45º bendsComponentsPart No. 80mm7 716 190 092 7 716 190 093 7 716 190 094*Maximum lengths (mm) &am

44Open (conventional) fl ued appliances must not be installed in a bedroom, bathroom or bedsitting room.• The fl ue system must be in accordance with B

45Oilfit flexible flue linerThe Oilfi t fl exible fl ue liner allows installation into a position where a standard effi ciency appliance had previously be

46Typical installationsOpen (conventional) fl ued appliances must not be installed in a bedroom, bathroom or bed-sitting room.Before installation comme

4747Greenstar Heatslave II accessoriesGreenstar Oilfit internal flue systemGreenstar Heatslave II Internal seriesCondenseSure auxiliary siphonWorceste

48Stainless steel 1,000mm extension kit (100mm dia.)Worcester Part No. 7 716 190 066Stainless steel 500mm extension kit (100mm dia.)Worcester Part No.

4949Plume management accessoriesGreenstar Heatslave II Internal & Heatslave II External seriesPlume management kit(80mm dia.)Worcester Part No. 7

55The Greenstar Heatslave II combi range at a glanceHeatslave II 12/18 18/25 25/32Part no.7 731 600 047 7 731 600 048 7 731 600 049ErP Seasonal space

50Total training experience from Land’s End to John O’GroatsBelfastWakefieldClay CrossWorcesterWest ThurrockDundeeFifeDublinBurnleyDurhamWiltshireTred

5151Worcester’s oil manufacturing heritage stretches back to the foundation of the company in 1962. Since then, we have built a strong reputation for

Additional product and industry training courses The diversity of products in today’s heating industry gives you the opportunity to expand your expert

53A complete after-sales serviceSparesGenuine replacement parts for all supported Worcester products are readily available from stock, or on a next da

54Notes

5555Notes

worcester-bosch.co.ukWorcester, Bosch Group, Cotswold Way, Warndon, Worcester, WR4 9SWBBT3737Calls to 03 numbers cost no more than a national rate cal

6*Source: Worcester Customer Satisfaction Index 2011Given the competitive nature of the heating industry, Worcester know that installers have an impor

77In addition to our own extensive testing and research, we also listen and respond to installers as part of our product development programme.As a re

8*Subject to conditionsGreenstar Heatslave II boiler rangeGreenstar internal models are ideally suited for installation around the home.The Greenstar

99OperationThe Greenstar Heatslave II is supplied as standard suitable for sealed primary water systems. The appliance contains an expansion vessel, 3