Worcester GREENSTAR CDi CLASSIC SYSTEM Manuel utilisateur

UK/IE

USER INSTRUCTIONS

WALL HUNG RSF GAS FIRED CONDENSING COMBINATION BOILER

GREENSTAR CDi CLASSIC

6 720 812 179-00.1O

FOR SEALED CENTRAL HEATING SYSTEMS AND MAINS FED DOMESTIC HOT WATER

6 720 812 179 (2014/07)

The appliances are for use with:

Natural Gas or L.P.G. (Cat. II 2H3P type C13, C33 & C53)

Natural Gas:

29CDi GC number 47-406-65

34CDi GC number 47-406-67

38CDi GC number 47-406-69

42CDi GC number 47-406-71

L.P.G.:

29CDi GC number 47-406-66

34CDi GC number 47-406-68

38CDi GC number 47-406-70

42CDi GC number 47-406-72

preface

GREENSTAR CDi CLASSIC COMBI – 6 720 812 179 (2014/07)

PREFACE

PLEASE READ THESE INSTRUCTIONS CAREFULLY

These instructions are applicable to the Worcester, Bosch

Group boiler model stated on the front cover only.

These instructions apply in the UK/IE only and must be followed

except for any statutory obligation.

After installation please leave this User instruction Manual,

Installation, Commissioning and Servicing Instructions and

completed Benchmark Checklist with the user.

DEDICATED TO HEATING COMFORT

Thank you for purchasing a Greenstar gas-fired condensing

regular boiler manufactured by Worcester, Bosch Group. The

company prides itself on manufacturing boilers to the strictest

quality control standards throughout every stage of

production.

Worcester, Bosch group has led the field in innovative boiler

design and performance for more than 50 years. This heritage

means all our products are of exceptional quality and proven

reliability.

The Greenstar range in particular is extremely energy efficient,

offering you economical running costs and value for money. It

sits in SEDBUK Band A, and is therefore amongst the top

energy rated boilers available.

There is also the reassurance of our no-nonsense 2 years parts

and labour guarantee - backed up by Worcester Total Cover, an

optional complete maintenance scheme to keep your boiler

operating at peak condition and efficiency.

TABLE OF CONTENTS

1 Key to symbols and safety instructions . . . . . . . . . . . 3

1.1 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 General safety instructions . . . . . . . . . . . . . . . . . . 3

2 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Operating the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.2 Switching the boiler ON/OFF . . . . . . . . . . . . . . . . 6

3.3 Setting the central heating temperature . . . . . . . 7

3.3.1Controlling the central heating . . . . . . . . . . . . . . . 7

3.4 Setting the hot water temperature . . . . . . . . . . . . 8

3.5 Frost protection (for the boiler) . . . . . . . . . . . . . . 9

3.6 Frost protection (for the heating system) . . . . . . 9

3.7 Domestic hot water pre-heat . . . . . . . . . . . . . . . 10

3.8 Holiday setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.9 Fault condition . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.1 Re-pressuring the heating system . . . . . . . . . . . 13

4.2 Fault finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.3 Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.4 Extreme cold weather . . . . . . . . . . . . . . . . . . . . . 17

5 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6 Fault or Breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

7 Tips on energy saving . . . . . . . . . . . . . . . . . . . . . . . . . 19

8 Your guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

9 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Key to symbols and safety instructions

GREENSTAR CDi CLASSIC COMBI – 6 720 812 179 (2014/07)

1 KEY TO SYMBOLS AND SAFETY

INSTRUCTIONS

1.1 KEY TO SYMBOLS

WARNINGS

The following keywords are defined and can be used in this

document:

•NOTE indicates a situation that could result in damage to

property or equipment.

•CAUTION indicates a situation that could result in minor to

medium injury.

•WARNING indicates a situation that could result in severe

injury or death.

•DANGER indicates a situation that will result in severe

injury or death.

IMPORTANT INFORMATION

ADDITIONAL SYMBOLS

1.2 GENERAL SAFETY INSTRUCTIONS

These installation instructions are intended for gas fitters,

plumbers, heating engineers and electricians.

▶ Read any installation instructions (boiler, heating controls,

etc.) carefully before starting the installation.

▶ Observe the safety instructions and warnings.

▶ Observe national and regional regulations, technical rules

and guidelines.

▶ Record all work carried out.

IF YOU SMELL GAS

A gas leak could potentially cause an explosion. If you smell gas,

observe the following rules.

▶ Prevent flames or sparks:

– Do not smoke, use a lighter or strike matches.

– Do not operate any electrical switches or unplug any

equipment.

– Do not use the telephone or ring doorbells.

▶ Turn off the gas at the meter.

▶ Open windows and doors.

▶ Warn your neighbours and leave the building.

▶ Prevent anyone from entering the building.

▶ Well away from the building: call the National Gas

Emergency Service on 0800 111 999.

INTENDED USE

This boiler must only be used as a heat appliance in a sealed hot

water heating system for domestic purposes.

Any other use is considered inappropriate. Any damage that

results from such use is excluded from liability.

INSTALLATION, COMMISSIONING AND SERVICING

Installation, commissioning and servicing must only be carried

out by a competent, Gas Safe registered engineer.

▶ Carry out a gas tightness test after completing work on gas-

carrying components.

▶ Only use original spares.

ELECTRICAL WORK

Electrical work must only be carried out by a qualified

electrician.

▶ Before starting electrical work:

– Isolate the mains electrical supply and secure against

unintentional reconnection.

– Check for zero potential.

▶ Also observe connection diagrams of other system

components.

Warnings in this document are identified by a

warning triangle printed against a grey

background.

Keywords at the start of a warning indicate the

type and seriousness of the ensuing risk if

measures to prevent the risk are not taken.

This symbol indicates important information

where there is no risk to people or property.

Symbol Explanation

▶ Step in an action sequence

Cross-reference to another part of the document

• List entry

– List entry (second level)

Table 1

General Information

GREENSTAR CDi CLASSIC COMBI – 6 720 812 179 (2014/07)

HANDOVER TO THE USER

When handing over, instruct the user how to operate the

heating system and inform him about its operating conditions.

▶ Explain how to operate the heating system and draw the

user's attention to any safety-relevant action.

▶ Explain that modifications and repairs must only be carried

out by an authorised contractor.

▶ Advise the user to have the system serviced annually by a

competent, Gas Safe registered engineer.

▶ Leave the installation instructions with the completed

Benchmark Checklist (or a certificate confirming

compliance with IS 813, Eire only) and the operating

instructions with the user or at the gas meter.

2 GENERAL INFORMATION

SERVICING

• The boiler must be serviced regularly by a competent,

qualified person, such as a Worcester service engineer or

other Gas Safe registered engineer.

• Always use original spares, to help maintain the efficiency,

safety and reliability of the boiler and have the Service

Record completed in the Benchmark Checklist.

The completed Benchmark Checklist will be required in the

event of any guarantee work and may be required by the local

Building Control Inspector.

BENCHMARK STANDARD

The Benchmark initiative is a

code of practice to encourage the

correct installation,

commissioning and servicing of

domestic central heating boilers

and system equipment.

A “checklist” is dispatched with every boiler. This is a vital

document that needs to be completed by the installer at the

time of installation. It confirms that the boiler has been

installed and commissioned according to the manufacturer's

instructions.

The log book provides space for the recording of regular

servicing of the boiler/heating system and this can become a

valuable document when, for example, you wish to sell the

property. The log book will show a potential purchaser that the

heating system has received regular professional maintenance

and servicing during its lifetime.

The Benchmark initiative aims to:

• Raise standards among professional installers

• Build and maintain high safety standards in the industry

• Improve customer satisfaction levels

• Make a contribution to the nation's commitment to climate

change

Ensure that the service engineer completes the

Service Record in the Benchmark Checklist

after each service. The Benchmark Checklist

and service interval record can be found at the

rear of the Installation, Commissioning and

Servicing Instructions.

Operating the boiler

GREENSTAR CDi CLASSIC COMBI – 6 720 812 179 (2014/07)

3 OPERATING THE BOILER

3.1 CONTROLS

Fig. 1 Control panel

[1] ON/OFF button

[2] Position for optional programmer

[3] Display

[4] System pressure gauge

[5] Reset button

[6] Eco button

(only in conjunction with optional diverter valve)

[7] Holiday button

(only in conjunction with optional diverter valve)

[8] Domestic hot water temperature control

(only in conjunction with optional diverter valve)

[9] ON/OFF and fault indicator (Blue)

[10] Central heating temperature control

[11] Central heating boost button

[12] Service button

[13] Burner indicator (Green)

1 2 43

910 86 720 812 178-01.1O

Operating the boiler

GREENSTAR CDi CLASSIC COMBI – 6 720 812 179 (2014/07)

3.2 SWITCHING THE BOILER ON/OFF

Fig. 2

Switching on

▶ Switch on the boiler by pressing the ON/OFF button.

The ON/OFF indicator light [1] shows blue.

Switching off

▶ Switch off the boiler by pressing the ON/OFF button.

The ON/OFF indicator light [1] goes out.

16 720 812 178-02.1O

The boiler runs for 15 minutes at minimum heating output to fill the condensate trap. The display [K] alternates

between and the central heating flow temperature.

This occurs every time the mains supply has been interrupted.

Operating the boiler

GREENSTAR CDi CLASSIC COMBI – 6 720 812 179 (2014/07)

3.3 SETTING THE CENTRAL HEATING TEMPERATURE

▶ Turn the central heating temperature control to the desired

level, between approximately 35°C and 90°C.

When the burner is lit, the burner indicator light [1]

underneath the ON/OFF button shows green.

Fig. 3

3.3.1 CONTROLLING THE CENTRAL HEATING

Central heating systems must be controlled effectively using a

programmer or timer and a room thermostat.

▶ For further information on how to control your central

heating systemplease refer to the individual user guides for

the programmer or timer installed in your home.

minmin

6 720 812 178-03.1O

Position Central heating temperature

1approx. 35 °C

2approx. 43 °C

3approx. 50 °C

4approx. 60 °C

5approx. 67 °C

6approx. 75 °C

max approx. 90 °C

Table 2 Settings for the central heating temperature

Operating the boiler

GREENSTAR CDi CLASSIC COMBI – 6 720 812 179 (2014/07)

3.4 SETTING THE HOT WATER TEMPERATURE

Fig. 4

▶ Turn the domestic hot water temperature control [1] to the

desired level, between approximately 40°C and 60°C.

6 720 812 178-05.1O

Position Hot water temperature

min approx. 40 °C

eapprox. 50 °C

max approx. 60 °C

Table 3 Settings for the domestic hot water temperature

Operating the boiler

GREENSTAR CDi CLASSIC COMBI – 6 720 812 179 (2014/07)

3.5 FROST PROTECTION (FOR THE BOILER)

Activating frost protection will turn off the central heating

system.

Heating of domestic hot water will stay activated.

If the temperature within the boiler drops to 5°C the boiler will

fire to avoid the possibility of freezing.

Fig. 5

To activate frost protection:

▶ Leave ON/OFF button [1] on.

▶ Turn the central heating temperature control to .

3.6 FROST PROTECTION (FOR THE HEATING SYSTEM)

If remote pipework is likely to be subject to freezing conditions:

▶ Ensure the installer has fitted a frost thermostat in the area

to protect the pipework from freezing.

▶ Ensure the installer has added a suitable anti-freeze fluid to

the water in the central heating system.

6 720 812 178-04.1O

Operating the boiler

GREENSTAR CDi CLASSIC COMBI – 6 720 812 179 (2014/07)

3.7 DOMESTIC HOT WATER PRE-HEAT

You can choose to run your boiler in pre-heat mode or in ECO

mode. Pre-heat reduces the time taken to produce hot water at

the tap and is controlled by the eeco button. When the

Eco button is illuminated, the boiler runs in ECO mode and pre-

heat is not available.

Fig. 6

To activate pre-heat mode:

▶ Press the eco button until it goes off.

To activate eco mode:

▶ Press the eco button until it lights up.

6 720 812 178-06.1O

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