GREENSTAR CDi - Boiler Manuals Bosch... · GREENSTAR CDi WALL HUNG RSF GAS-FIRED CONDENSING...

USER INSTRUCTIONS &CUSTOMER CARE GUIDE

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THE APPLIANCE IS FOR USE

WITH NATURAL GAS OR L.P.G.

(Cat II 2H3P TYPE C13 & C33)

25CDi GC-Number 47-311-92




GREENSTAR CDiWALL HUNG RSF GAS-FIRED CONDENSING COMBINATION BOILERFOR SEALED CENTRAL HEATING SYSTEMS AND MAINS FEDDOMESTIC HOT WATER

Greenstar CDi (Combi) User.qxd 17.02.2005 9:50 Uhr Seite 1

CONTACT INFORMATION

WORCESTER BOSCH:

TECHNICAL: 08705 266241

SERVICE: 08457 256206

SPARES: 01905 752571

LITERATURE: 01905 752556

TRAINING: 01905 752526

SALES: 01905 752640

WEBSITE:

www.worcester-bosch.co.uk

WATER TREATMENT:

FERNOX 01799 550811www.fernox.com

SENTINEL 0151 420 9595www.betzdearborn.com/sentinel

FLUE TERMINAL GUARDS:

TOWER FLUE COMPONENTSVale Rise, Tonbridge TN9 1TB

USER INSTRUCTIONS & CUSTOMER

CARE GUIDE

PLEASE READ THESE INSTRUCTIONSCAREFULLY BEFORE OPERATING YOURAPPLIANCE

THESE INSTRUCTIONS ARE APPLICABLE TOTHE WORCESTER BOSCH APPLIANCEMODEL(S) STATED ON THE FRONT COVEROF THIS MANUAL ONLY AND MUST NOT BEUSED WITH ANY OTHER MAKE OR MODELOF APPLIANCE.

THE INSTRUCTIONS APPLY IN THE UK ONLYAND SHOULD BE FOLLOWED EXCEPT FORANY STATUTORY OBLIGATION.

IF YOU ARE IN ANY DOUBT CONTACT THEWORCESTER BOSCH TECHNICAL HELPLINE.

DISTANCE LEARNING AND TRAINING COUR-SES ARE AVAILABLE FROM WORCESTERBOSCH.

THIS APPLIANCE MUST BE INSTALLED BY ACOMPETENT PERSON. FAILURE TO INSTALLCORRECTLY COULD LEAD TOPROSECUTION.

PLEASE LEAVE THIS GUIDE, THE INSTALLA-TION INSTRUCTIONS AND THE COMPLETEDBENCHMARK LOG BOOK WITH THE USER ORAT THE GAS METER AFTER INSTALLATION.

ABBREVIATIONS USED IN THIS BOOK:

NG - Natural GasLPG - Liquid Petroleum GasCH - Central HeatingSEDBUK - Seasonal Efficiency of DomesticBoilers in the United Kingdom

USER INSTRUCTIONS &

CUSTOMER CARE GUIDE

WORCESTER BOSCH GREENSTAR 25CDi/30CDi/35CDi/40CDi

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INTRODUCTIONEXCELLENCE COMES AS STANDARD 4SAFETY PRECAUTIONS 5-7GENERAL NOTES 8-11

USING YOUR APPLIANCECONTROLS 12OPERATING THE APPLIANCE 13-15

Switching the appliance on/off 13Setting the central heating temperature 13Controlling central heating 13Frost protection 14Controlling domestic hot water 14-15Fault condition 15

ENERGY SAVINGTIPS ON ENERGY SAVING 16-17

MAINTENANCEMAINTAINING YOUR APPLIANCE 18FAULT FINDING 19FAULT OR BREAKDOWN 20-21

GUARANTEEYOUR GUARANTEE 22GUARANTEE REGISTRATION 23

CONTENTSWORCESTER BOSCH GREENSTAR 25CDi/30CDi/35CDi/40CDi

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EXCELLENCE COMES

AS STANDARD


6 720 611 928a (02/05)

EXCELLENCE COMES ASSTANDARD

Thank you for purchasing a Greenstar25CDi/30CDi/35CDi/40CDi gas-firedcondensing combination boiler manu-factured by Worcester Bosch. The com-pany prides itself on manufacturing boi-lers to the strictest quality control stan-dards throughout every stage of produc-tion. Worcester Bosch has led the fieldin innovative appliance design and per-formance for more than 40 years. Thisheritage means all products are ofexceptional quality and proven reliability.

The Greenstar range in particular isextremely energy efficient, converting upto 97% of gas consumed into heat, offe-ring you economical running costs andvalue for money. It sits in SEDBUKBand A, and is therefore amongst thetop energy rated appliances available.

There is also the reassurance of our no-nonsense 2 years parts and labour gua-rantee - backed up by Worcester TotalCover, an optional complete maintenan-ce scheme to keep your boiler operatingat peak condition and efficiency.

To find out more about WorcesterBosch log onto www.worcester-bosch.co.uk.

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SAFETY

PRECAUTIONS


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IF YOU SMELL GAS:

6 DON’T SMOKE OR STRIKE

MATCHES

6 DON’T TURN ELECTRICAL

SWITCHES ON OR OFF

4 DO PUT OUT NAKED FLAMES

4 DO OPEN DOORS AND

WINDOWS

4 DO KEEP PEOPLE AWAY FROM

THE AREA AFFECTED

4 DO TURN OFF THE CONTROL

VALVE AT THE METER

4 TELEPHONE YOUR GAS

COMPANY

BENCHMARK STANDARD

‘Benchmark’ is a code of practice forcorrectly installing, commissioning andservicing of domestic water heatingappliances.

A Benchmark Checklist is provided bythe manufacturer for the installer tocomplete ALL details together with theirCORGI registration number and sign toconfirm that the boiler has been instal-led and commissioned according to themanufacturer’s instructions.

IMPORTANT: The completedBenchmark Checklist will be required inthe event of any warranty work and maybe required by the local BuildingControl Inspector.

HEALTH & SAFETY

The appliance contains no asbestos andno substances used in the constructionprocess that contravene the COSHHRegulations (Control of SubstancesHazardous to Health Regulations 1988).


SAFETY

PRECAUTIONS


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COMBUSTIBLE AND CORROSIVEMATERIALS

Do not store or use any combustiblematerials (paper, thinners, paints etc.)inside or within the vicinity of the appli-ance.

Chemically aggressive substances, suchas halogenated hydrocarbons containingchlorine or fluorine compounds can cor-rode the appliance and invalidate anywarranty.

FITTING & MODIFICATIONS

Fitting the appliance, any controls to theappliance and removal of the outercasing may only be carried out by acompetent engineer in accordance withthe Gas Safety (Installation and Use)Regulations.

Flue systems must not be modified inany way other than as described in theInstallation Instructions and any misuseor unauthorised modifications to theappliance, flue or associated compo-nents and systems could invalidate thewarranty. The manufacturer accepts noliability arising from any such actions.This does not affect your statutory rights.

SAFETY PRECAUTIONS

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SERVICING

The user is recommended to have thesystem regularly serviced by a compe-tent, qualified engineer (such as BritishGas or CORGI registered personnel)using original spares, to help maintainthe economy, safety and reliability of theappliance and to have the ServiceRecord completed in the BenchmarkChecklist.

The appliance should be serviced annu-ally after installation unless the particularinstallation conditions and usagedemand more frequent services.

IMPORTANT - ensure that the serviceengineer completes the Service Recordin the Benchmark Checklist after eachservice.

SAFETY PRECAUTIONS

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GENERAL NOTES WORCESTER BOSCH GREENSTAR 25CDi/30CDi/35CDi/40CDi

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To get the best from your appliance plea-se read these instructions carefully.

SEALED HEATING SYSTEMS

This appliance is fitted to a sealed hea-ting system which is pre-pressurised.Your installer will advise you of the mini-mum and maximum pressure whichshould be indicated on the pressuregauge.

Check regularly that the pressure ismaintained and contact your installer ormaintenance engineer if a permanentsignificant drop in pressure is indicatedon the pressure gauge. If the systemloses pressure it should be re-pressuri-sed and the cause of the fall investiga-ted.

CENTRAL HEATING SYSTEMS

During the first few hours of operation ofthe central heating system, check that allradiators are being heated at an evenrate. If the top of a radiator is at a lowertemperature than the bottom then itshould be vented by releasing airthrough the venting screw at the top ofthe radiator. Ask your installer to showyou how this is done.

This boiler is fitted to a sealed system;repeated venting will reduce the quantityof water in the system and this must be


GENERAL NOTESWORCESTER BOSCH GREENSTAR 25CDi/30CDi/35CDi/40CDi

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replenished for safe and satisfactoryoperation of the appliance.

Should water leaks be found in thesystem or if excessive venting is requi-red, then a service engineer must becontacted to inspect the installation andrectify any fault.

Only additives that are compatible withaluminium may be used in the system.Any incompatible additive used will inva-lidate the guarantee.

CONDENSATE DRAIN

This is a condensing appliance and theterminal will, at times give out a plume ofwater vapour. This is quite normal.

The appliance also produces quantitiesof condensate which is discharged regu-larly by a siphon within the boiler via apipe to drain. This pipe must not beblocked or altered in any way.

CLEARANCES - VENTILATEDCOMPARTMENT

Your installer will have provided adequa-te space around the appliance for safetyand servicing access. Do not restrict thisspace with the addition of cupboards,shelves etc. next to the appliance.

*600 mm service clearance required to afixed surface(**20 mm from removable door or panel)

GENERAL NOTES

1450mm

mm mm

+ 30mmabove elbow

5mm

5mm

600mm

200mm

*600mm(**20mm)

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+ 250mmabove elbow

100mm*

100mm*

300mm

100mm**to removable door

600mm***front clearancefor service

GENERAL NOTES WORCESTER BOSCH GREENSTAR 25CDi/30CDi/35CDi/40CDi

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BOILER CLEARANCES -UNVENTILATED COMPARTMENT

The diagrams (A and B) opposite showtwo options for the minimum spacerequired to install and service the boilerinside an unventilated compartment.

* This space can be reduced to 50 mmfor one side only as long as both theside clearances add up to the total ofboth the side measurements shown ormore.

** Space required for unventilated areaswith a removable door or panel.

*** 600 mm clearance required to a fixedsurface for servicing.

ROOM THERMOSTAT

A room temperature controller and pro-grammer should be fitted to control thecentral heating. Refer to the instructionssupplied with the thermostat for informa-tion on siting and setting.

THERMOSTATIC RADIATOR VALVES

It is recommended that this type of valveis fitted to all but one of the radiators (orat least those in the sleeping accommo-dation). The remaining radiator, whichmust be where the room thermostat islocated, should be uncontrolled andmust be left open. The thermostaticradiator valves should conform to therequirements of BS2767:10.

+ 30mmabove elbow

200mm*

200mm*

100mm**600mm***

200mm

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GENERAL NOTESWORCESTER BOSCH GREENSTAR 25CDi/30CDi/35CDi/40CDi

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VENTILATION

This is a room sealed appliance anddoes not require any air for combustionfrom inside the property. If the applianceis fitted into a cupboard or a compart-ment is built around the appliance afterinstallation, then the compartment mustbe separated from the boiler space by aperforated non-combustible partition asdescribed in BS 6798.

Notwithstanding the requirements of BS6798 and BS 5440 there is no need forventilation openings to be provided inthe compartment because of the lowheat loss from the appliance casing, ifthe clearances shown are maintained.

Do not operate the appliance if the flueterminal fitted on the outside wall or roofis obstructed or damaged.

PUMP ANTI-SEIZURE

If there has been no heating demand for24 hours the boiler will run the systempump for a few seconds to reduce thepossibility of pump seizure during longperiods of inactivity, which is usuallymore frequent during the summermonths.

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CONTROLS WORCESTER BOSCH GREENSTAR 25CDi/30CDi/35CDi/40CDi

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A - MASTER SWITCH FOR ON/OFF

B - MAINS ON/OFF INDICATOR +FAULT DIAGNOSTIC LIGHT

C - CENTRAL HEATING TEMPERA-TURE CONTROL

D - BURNER ON INDICATOR LIGHT(GREEN)

E - FAULT RESET BUTTON

F - SERVICE BUTTON

G - DOMESTIC HOT WATER TEMPE-RATURE CONTROL

H - ECO BUTTON (DOMESTIC HOTWATER PRE-HEAT ON/OFF)

I - SYSTEM PRESSURE GAUGE

J - POSITION FOR OPTIONALPROGRAMMER

K - DISPLAY

L - CENTRAL HEATING BOOSTBUTTON

M - HOLIDAY BUTTON

CONTROLS

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OPERATING THE

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SWITCHING THE APPLIANCE ON/OFF

Switching on

B Switch on the appliance by pressingthe master switch.The indicator light shows blue

• The boiler runs for 15 minutes at mini-mum heating output to fill the conden-sate trap, the display (K) alternates bet-ween “-II-” and the central heating flowtemperature. This occurs every time themains supply has been interrupted.

Switching off

B Switch off the appliance by pressingthe master switch.The blue indicator light goes out.

SETTING THE CENTRAL HEATINGTEMPERATURE

B Turn the central heating temperaturecontrol to the desired level, between40 °C and 90 °C.

B When the burner is lit, the green indi-cator light underneath the on/off switchis illuminated.

CONTROLLING CENTRAL HEATING

B Set the timer to the correct time.

B Set room thermostat to the desiredroom temperature.

B Set the thermostatic radiator valves tothe desired settings.

OPERATING THE APPLIANCE


OPERATING THE

APPLIANCE


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FROST PROTECTION

B Leave master switch on.

B Turn the central heating temperaturecontrol to .

If the temperature falls to 5 °C within theboiler it will fire to avoid the possibility offreezing.

B Add a suitable anti-freeze fluid to thewater in the central heating system.

B If remote pipework is likely to be sub-jected to freezing conditions, ensure theinstaller has fitted a frost thermostat inthe area to protect the pipework.

CONTROLLING THE HOT WATERTEMPERATURE

B The hot water temperature can be setto between approx. 40 °C and 60 °Cusing the temperature control .

DOMESTIC HOT WATER PRE-HEAT

Pre-heat reduces the time taken to pro-duce hot water at the tap and is control-led by the ECO button.

B Press the ECO button to select either:

When the ECO button is not illumina-ted the boiler will be in pre-heat mode


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OPERATING THE

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(which will reduce the time taken to pro-duce hot water at the tap).

OR

When the ECO button is illuminatedthe boiler will be in ECO mode with nopre-heat available.

FAULT CONDITION

In the unlikely event of a fault occurringwhile the appliance is in operation:

The reset button will flash once persecond and the mains indicator (bluelight) will flash also. The display shows afault code.

B To reset boiler press the reset button.

The reset button will no longer be illumi-nated and the mains indicator will stopflashing.

The boiler will function normally, depen-dent on programmer and room thermo-stat settings.

If the fault remains and cannot be clea-red by pressing the reset button, or iffault persists contact Worcester Boschfor assistance, giving a description of thefault and, if possible, the fault code fromthe display.


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6 720 611 928a (02/05)

16 TIPS ON ENERGY

SAVING

Heating economically

The boiler is designed to provide a highlevel of comfort while keeping gas con-sumption and the resulting environmen-tal effect as low as possible. The gassupply to the burner is controlled accor-ding to the level of demand for heat.The boiler continues to operate with alow flame if the demand for heat redu-ces. The technical term for this processis modulating control. Modulating con-trol reduces temperature fluctuationsand provides even distribution of heatthroughout the home. This means thatthe boiler may stay on for relatively longperiods but will use less gas than anappliance that continually switches onand off.

TIPS ON ENERGY SAVING

Central heating systems with roomthermostats/thermostatic radiatorvalves

The central heating control on the boilershould be set to the maximum rated tem-perature of the central heating system.

The temperature of each room can beset individually (except primary room withthe room thermostat) using the thermo-static radiator valves.

Roof insulation

Around 30% of the heat loss from a pro-perty is through the roof. Replace anyold insulation with new insulation, prefe-rably of around 200 mm thickness ormore.

Window frames

Single glazed windows, particularlythose with steel frames, can lose a greatdeal of heat. Consideration should begiven to replacement with PVCu or woo-den framed double glazed units.

Curtains

Lined curtains, or heavier full length cur-tains can provide excellent insulation.However, always ensure that the curtainsdo not drape over radiators.

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17TIPS ON ENERGY

SAVING

Draughts

Try to ensure that draughts arounddoors, windows, letterboxes and keyho-les etc. are reduced by using a suitabledraught excluder. Warning - Do not blockor seal any air vents that are installed toensure the central heating boiler opera-tes safely.

Room thermostats

Reducing the setting of the room ther-mostat by 1 °C can reduce fuel con-sumption by up to 10%.

New control systems

Upgrade your heating control system ifnecessary with the latest equipmentavailable. The minimum level of control isa programmer, interlocking room thermo-stat and thermostatic radiator valves.

Radiators

More often than not radiators will besited underneath a window, so the warmair from the radiator heats the colderincoming air from the window. The per-formance of the radiator will be affectedif the curtains are allowed to drape overthe radiator or shelves are fitted above it.The positioning of furniture and tables infront of the radiator should also be avoi-ded.

It is advisable to manually adjust allradiator thermostatic valves every 2-3months to prevent them sticking. It isalso important that the plastic tops of allvalves are always in position and notcracked or damaged to prevent acci-dents. Care should be taken when vacu-um cleaning carpets to avoid damage tovalves and pipework.

The heating system and the outputs ofthe radiators have been carefully selec-ted by your installer. The temperatureobtainable in any given room is depen-dent on all radiators being operated atthe same time. If you decide to turn offradiators in unused rooms, sparebedrooms etc., you may experienceslightly lower room temperatures inrooms adjacent to unheated rooms.

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6 720 611 928a (02/05)

18 MAINTAINING

YOUR APPLIANCE

Your new Greenstar 25CDi/30CDi/35CDi/40CDi gas-fired appliance repre-sents a long term investment in a reliab-le, high quality product.

In order to realise its maximum workinglife, and to ensure it continues to opera-te at peak efficiency and performance, itis essential that your boiler receivesregular servicing and maintenancechecks from a competent personbeyond the initial 2 year guaranteeperiod.

If you would like to know more about aWorcester Bosch service contract, plea-se tick the appropriate box on your war-ranty registration card.

If your Greenstar 25CDi/30CDi/35CDi/40CDi should fail to operate cor-rectly or requires servicing please con-tact the Worcester Bosch ServiceDepartment (see inside front cover fordetails).

Details of the boiler including the GasCouncil number can be found under thecontrols cover flap on the boiler.

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19FAULT FINDING

FAULT FINDING

This table gives information on basicoperating system problems.

In the unlikely event of a boiler faultplease read the following page tho-roughly before contacting WorcesterBosch.

Problem Cause Remedy

Desired room temperatureis not reached

Thermostatic radiatorvalve(s) set too low

Increase thermostaticradiator valve setting(s)

Temperature control for CHflow on boiler set too low

Increase CH flow tempera-ture control setting

Air trapped in heatingsystem

Bleed radiators and rechar-ge heating system

Desired room temperatureexceeded by large amount

Radiators are too hot Turn down thermostaticradiator valves / room ther-mostat

Reduce central heatingtemperature on boiler

Heating stays on for toolong

Clock is incorrectly set Check setting

No on/off indicator Momentary power failure Switch off appliance atmaster switch, wait a fewseconds then switch onagain

Hot water temperature toolow

Temperature set too low

Programmer setting

Water flow at tap too high

Check setting

Check setting

Reduce flow rate at tap

Hot water temperature toohigh

Temperature set too high Check setting

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20 FAULT OR

BREAKDOWN

This appliance is supported in the UKby Worcester, Bosch Group.

Specialist factory trained ServiceEngineers are available to attend abreakdown occurring on this appliance.

No charge will be made for partsand/or labour providing:

B An appliance fault is found and theappliance has been installed within thepast 24 months. Reasonable evidenceof this must be supplied on request. i.e.the Benchmark Checklist.

A call-out charge will be made where:

B The appliance has been installed forover 24 months.

OR

B Evidence cannot be provided that thefirst year service inspection has beencarried out (ie. an entry in theBenchmark Checklist).

OR

B Our Field Service Engineer finds nofault with the appliance (see Note).

OR

B The cause of breakdown is misuse orwith other parts of your plumbing/hea-ting system, or with equipment not sup-plied by Worcester Bosch.

FAULT OR BREAKDOWN


FAULT OR

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Note: NO APPLIANCE FAULT IS FOUND ONOVER 30% OF ALL SERVICE CALLOUTS.

Please read this guide carefully to gain agood understanding of the operation ofyour appliance. In the case of a suspec-ted fault, refer to the fault finding sectionof this guide.

If in doubt contact our TechnicalHelpline

In the event of an appliance fault orbreakdown please contact our ServiceDepartment. Your service administratorwill arrange for an engineer to call withthe minimum of delay; under normal cir-cumstances this will be from 1 - 3 wor-king days (excluding weekends) for prio-rity breakdown situations (no hot waterand/or heating).

Invoices for attendance and repair workcarried out on this appliance by any thirdparty will not be accepted.

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YOUR

GUARANTEE


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This appliance is guaranteed againstfaulty material or workmanship for aperiod of 2 years from the date of instal-lation subject to the following terms andconditions.

B Your Guarantee Registration Cardmust be returned within 30 days for thesecond year of your guarantee to beco-me valid.

B During the period of this guaranteeany components of the unit which areproven to be faulty or defective in manu-facture will be exchanged or repairedfree of charge by BBTThermotechnology UK Ltd.

YOUR GUARANTEE

B The householder may be asked toprove the date of installation, that theappliance was correctly commissionedand, where appropriate, the first year’sservice has been carried out to the satis-faction of BBT Thermotechnology UKLtd. when requested. These should bepart of the Benchmark Checklist.

B Any product or part returned for servi-cing under the guarantee must beaccompanied by a claim stating themodel, serial number & date of installa-tion.

B BBT Thermotechnology UK Ltd. willnot accept responsibility for damagecaused by faulty installation, neglect,misuse or accidental damage or the non-observance of the instructions containedin the Installation and Servicing Manualand User Instructions.

B The appliance has been used only forthe normal domestic purposes for whichit was designed.

B This guarantee applies only to equip-ment purchased and used in the UnitedKingdom.

This guarantee does not affect your sta-tutory rights.

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REGISTRATION


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You should complete and return thepostpaid Guarantee Registration Cardwithin 14 days of purchase.

Returning the card will register you asthe owner of your new Greenstar25CDi/30CDi/35CDi/40CDi applianceand will assist us in maintaining aneffective and efficient customer serviceby establishing a reference and perma-nent record for your boiler.

This does not affect your statutoryrights.

For your own record:

Check that the Benchmark Checklisthas been completed by your installer orservice engineer.

GUARANTEE REGISTRATION

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Serial No.(See guarantee card)

Type / size

Date of installationG

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USER INSTRUCTIONS &CUSTOMER CARE GUIDEWorcester, Bosch GroupCotswold Way, Warndon, Worcester WR4 9SW.Tel. 01905 754624 Fax. 01905 754619

www.worcester-bosch.co.uk

Worcester Bosch Group is a trading name of BBT Thermotechnology UK Ltd.

6 720 611 928a (02/05) OSW


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