Worcester GREENSTAR i SYSTEM Bedienungsanleitung
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)
2
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.
3
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
4
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
5
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.
6
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.
7
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
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8
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
1
2
3
4
5
6
Max
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40 °C
47 °C
53 °C
61 °C
68 °C
74 °C
80 °C
82 °C
2
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5
6
max
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2.
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2
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max
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eco
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maxmin
6720643356-06 1Wo
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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.
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2
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6
max
reset
eco
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6720644864-01.1Wo
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10
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.
1
2
34
5
6
max
reset
eco
1
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maxmin
6720643356-09.1Wo
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