Worcester GREENSTAR i SYSTEM Manuale utente

UK/IE

USER MANUAL

WALL HUNG RSF GAS FIRED CONDENSING SYSTEM BOILER

GREENSTAR i SYSTEM

6720643356-00.1Wo

FOR CENTRAL HEATING SYSTEMS

6 720 644 864a (2010/10)

PREFACE

6 720 644 864a (2010/10)

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 combination 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 almost 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.

CONTENTS

6 720 644 864a (2010/10)

CONTENTS

1 Symbols and safety precautions . . . . . . . . . . . . . . . 4

1.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 General Information . . . . . . . . . . . . . . . . . . . . . . . . . 6

3 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.1 Operating the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.1.1 Switch off the central heating . . . . . . . . . . . . . . . . . . . . . 8

3.1.2 Boiler frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1.3 Setting the hot water temperature . . . . . . . . . . . . . . . . . . 9

3.1.4 Boiler reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4 System Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1 Sealed heating system . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.2 External filling loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5 Service Clearances . . . . . . . . . . . . . . . . . . . . . . . . . 13

6 Maintaining your Boiler . . . . . . . . . . . . . . . . . . . . . 14

7 Fault Finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

8 Fault or Breakdown . . . . . . . . . . . . . . . . . . . . . . . . . 17

9 TIPS ON ENERGY SAVING . . . . . . . . . . . . . . . . . . . 18

10 Environment / disposal . . . . . . . . . . . . . . . . . . . . . 20

11 Your Guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

12 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

SYMBOLS AND SAFETY PRECAUTIONS

6 720 644 864a (2010/10)

1 SYMBOLS AND SAFETY PRECAUTIONS

1.1 EXPLANATION OF SYMBOLS

WARNING SYMBOLS

Signal words indicate the seriousness of the hazard in terms of the consequences of not following the

safety instructions.

•NOTICE indicates possible damage to property or equipment, but where there is no risk of personal

injury.

•CAUTION indicates possible personal injury.

•WARNING indicates possible severe personal injury.

•DANGER indicates possible risk to life.

IMPORTANT INFORMATION

ADDITIONAL SYMBOLS

Safety instructions in this document are framed and identified by a

warning triangle which is printed on a grey background.

Electrical hazards are identified by a lightning symbol surrounded by a warning triangle.

Notes contain important information in cases where there is no risk of

personal injury or material losses and are identified by the symbol shown on the left.

They are bordered by horizontal lines above and below the text.

Symbol Meaning

Ba step in an action sequence

Æa reference to a related part in the document or to other related documents

•a list entry

–a list entry (second level)

Tab. 1 Symbols

SYMBOLS AND SAFETY PRECAUTIONS

6 720 644 864a (2010/10)

1.2 SAFETY PRECAUTIONS

IF YOU SMELL GAS!

BCall the National Gas Emergency Service on: 0800 111 999

BExtinguish any naked flames

BDo not smoke or strike matches

BDo not turn electrical switches on or off

BOpen doors and windows

BKeep people away from the affected area

BTurn off the gas control valve at the meter

BOILER OPERATION:

This boiler must only be operated by a responsible adult who has been instructed in, understands and

is aware of the boiler's operating conditions and effects.

COMBUSTIBLE AND CORROSIVE MATERIALS:

Chemically aggressive substances can corrode the boiler and invalidate any warranty.

BDo not store or use any combustible materials (paper, thinners, paints etc.) inside or within the

vicinity of the boiler.

FITTINGS AND MODIFICATIONS:

Only a competent engineer in accordance with the Gas Safety (Installation and Use) Regulations can

remove the outer case and carry out any work.

BDo not remove the outer casing.

Any misuse or unauthorised modifications to the boiler, flue or associated components and system will

invalidate the warranty.

BDo not modify the boiler or flue system in any way.

Worcester, Bosch Group accepts no liability arising from any such actions. This does not affect your

statutory rights.

GENERAL INFORMATION

6 720 644 864a (2010/10)

2 GENERAL INFORMATION

SERVICING

BThe boiler must be serviced regularly by a competent, qualified person, such as a Worcester service

engineer or other Gas Safe registered engineer.

BAlways use original spares, to help maintain the economy, 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 warranty 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 “log book” 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 manufacturers

instructions.

The log book provides space for the recording of regular servicing of the boiler/system and this can

become a valuable document when, for example, the householder wishes to sell the property. The log

book will show a potential purchaser that the heating system has received regular professional

attention 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.

CONTROLS

6 720 644 864a (2010/10)

3CONTROLS

BTo gain access to the boiler controls push the top centre of the flap and release.

Fig. 1 Control panel fascia

Boiler

Controls

1Central heating temperature control 6 ECO button (non functional)

2Burner indicator (Green) 7 Reset button

3Service button 8 Hot water temperature control*

4Cover or optional Programmer 9 System pressure gauge

5Power ON and fault indicator (Blue) * Requires optional integral

diverter kit to be functional

12345678

6720643356-13.1Wo

CONTROLS

6 720 644 864a (2010/10)

3.1 OPERATING THE BOILER

SETTING THE CENTRAL HEATING TEMPERATURE

1. Turn the central heating temperature control knob to the desired level.

Temperatures given in the figure below are approximate.

2. The Burner indicator (green) will illuminate to show that the boiler is running.

Fig. 2 Central heating temperature control

3.1.1 SWITCH OFF THE CENTRAL HEATING

1. Turn the temperature control knob to the snowflake symbol to switch off the central heating.

Fig. 3 Switch off central heating

Min

Max

---

40 °C

47 °C

53 °C

61 °C

68 °C

74 °C

80 °C

82 °C

max

reset

eco

maxmin

6720643356-06 1Wo

CONTROLS

6 720 644 864a (2010/10)

3.1.2 BOILER FROST PROTECTION

If the temperature within the boiler falls below 8°C the pump will run to circulate water and prevent

the system freezing.

If the temperature within the boiler falls below 5°C the boiler will fire periodically, bringing the boiler

temperature up to 12°C to avoid the possibility of the system freezing.

This process will be repeated until such time that the boiler temperature does not drop below 5°C.

3.1.3 SETTING THE HOT WATER TEMPERATURE

1. Turn the hot water temperature control knob to the desired level.

2. The Eco button is non operational with this type of boiler.

Fig. 4 Hot water temperature

Optional integral diverter valve kit with cylinder temperature sensor is required to be able

to set the hot water temperature.

Otherwise the temperature is factory set to approximately 55°C.

max

reset

eco

maxmin

6720644864-01.1Wo

CONTROLS

6 720 644 864a (2010/10)

3.1.4 BOILER RESET

In the event of a fault, the reset button will flash once per second and the blue mains indicator light

will flash.

1. To reset the boiler press the reset button for approximately five seconds.

When the boiler resets the reset button will no longer be illuminated.

2. The mains indicator will no longer be flashing.

Fig. 5 Reset button and mains light

If the fault remains and cannot be cleared by pressing the reset button, contact

Worcester, Bosch Group for assistance.

max

reset

eco

maxmin

6720643356-09.1Wo

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