Table Of Contents - Worcester Greenstar CDi Compact Series User Instructions

PREFACE
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 and the Installation, Commissioning and Servicing Instructions 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 over 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. With a
SEDBUK 2009 efficiency rating of 89.8%, the Greenstar CDi Compact series are 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
1 Symbols and safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Operating the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1.1 Boiler display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1.2 Setting the boiler flow temperature for the central heating system . . . . . . . . . . . . . 7
3.1.3 Boiler frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1.4 Turning the central heating off during the summer . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1.5 Setting the flow temperature for domestic hot water system . . . . . . . . . . . . . . . . . . 8
3.1.6 Domestic hot water preheat (without fascia timer fitted) . . . . . . . . . . . . . . . . . . . . . 8
3.1.7 Domestic hot water preheat (with fascia timer fitted) . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1.8 Domestic hot water eco mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1.9 Boiler alert state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1.10 Boiler reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1.11 Turn off the Operation/fault diagnostic light (blue) . . . . . . . . . . . . . . . . . . . . . . . . 10
4 System Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1 Sealed heating systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Using the Worcester integral filling link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5 Service Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6 Maintaining your Boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7 Fault Finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.1 Extreme cold weather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8 Fault or Breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
9 Tips on energy saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
10 Environment / disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
11 Your guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
12 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2 6 720 803 801 (2012/09)