Worcester Greenstar FS 30CDi ErP User manual

UK/IE
USER INSTRUCTIONS
FLOOR STANDING RSF GAS FIRED CONDENSING BOILER
Greenstar FS 30CDi ErP & 42CDiErP Regular
6720808851-00.1Wo
FOR SEALED OR OPEN VENT CENTRAL HEATING SYSTEMS
6 720 818 078 (2015/12)
The appliances are for use with:
Natural Gas or L.P.G. (Cat. II 2H3P type C13, C33 , C53 & C93)
Natural Gas:
FS 30CDi ErP Regular, GC number 41-406-62
FS 42CDi ErP Regular, GC number 41-406-64
L.P.G.:
FS 30CDi ErP Regular, GC number 41-406-63
FS 42CDi ErP Regular, GC number 41-406-65

2
Preface
Greenstar FS CDi ErP – 6720919078 (2015/12)
Preface
Please read these instructions carefully
These instructions are applicable to the Worcester, Bosch
Group boiler models 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
including the completed Benchmark Checklist with the user.
Dedicated to heating comfort
Thank you for purchasing a Greenstar gas-fired condensing
boilermanufacturedby Worcester,Bosch Group. Thecompany
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 2005 Band A, scoring highly in SEDBUK
2009, and is therefore among 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 Product details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 General information . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Product data on energy consumption . . . . . . . . . 4
3 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Switching the boiler ON/OFF . . . . . . . . . . . . . . . . 6
3.1.1 Switching ON . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Setting the central heating temperature . . . . . . . 6
3.2.1 Controlling the central heating . . . . . . . . . . . . . 6
3.3 Frost protection (for the boiler) . . . . . . . . . . . . . . 7
3.3.1 Frost protection (for the heating system) . . . . . 7
3.4 Fault condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Boiler/compartment clearances . . . . . . . . . . . . . . . . . 9
4.1 Boiler clearances . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Airing cupboard clearances . . . . . . . . . . . . . . . . 10
4.3 Vented compartments . . . . . . . . . . . . . . . . . . . . 10
5 Maintaining your boiler . . . . . . . . . . . . . . . . . . . . . . . 11
6 Fault finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.1 Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.2 Extreme cold weather . . . . . . . . . . . . . . . . . . . . . 12
7 Fault or breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
8 Environment / disposal . . . . . . . . . . . . . . . . . . . . . . . 13
9 Tips on energy saving . . . . . . . . . . . . . . . . . . . . . . . . . 13
10 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
11 Guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3
Symbols and safety precautions
Greenstar FS CDi ErP– 6720818078 (2015/12)
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.
Important information
Additional symbols
1.2 Safety precautions
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 or regulator
▶ Open windows and doors
▶ Warn your neighbours and leave the building
▶ Prevent anyone from entering the building.
▶ Move well away from the building: call Emergency Services
▶ LPG boilers: Call the supplier’s number on the side of the
gas tank
Boiler Operation
This appliance can be used by children aged
from 8 years and above and persons with
reduced physical, sensory or mental capabilities
or lack of experience and knowledge, if they
have been given supervision or instruction
concerning use of the appliance in a safe way
and understand the hazards involved. Children
shall not play with the appliance. Cleaning and
user maintenance shall not be made by children
without supervision.
Combustible and Corrosive Materials
Chemically aggressive substances can corrode the boiler and
invalidate any guarantee.
• Do not store or use any combustible materials (paper,
thinners, paints, propellants, cleaning agents etc.) inside
the cupboard containing the boiler or within the vicinity of
the appliance.
Fittings and Modifications
Only a competent registered gas engineer, such as a Gas Safe
registered engineer or British gas engineer can remove the
boiler’s inner combustion chamber cover and carry out any
work, in accordance with the Gas Safety (Installation and Use)
Regulations.
• Do not remove the inner combustion chamber cover.
Any misuse or unauthorised modifications to the boiler, flue or
associated accessories and heating system will invalidate the
guarantee.
• Do 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.
Cleaning the boiler case
Use a damp, soft cloth to clean the outer painted metal case of
the boiler, do not use chemicals or abrasive materials.
Safety instructions in this document are
framed and identified by a warning triangle
which is printed on a grey background.
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.
Symbol Meaning
1. a numbered step in an action sequence
▶ a step in an action sequence
•alistentry
– a list entry (second level)

4
Product details
Greenstar FS CDi ErP – 6720919078 (2015/12)
2 Product details
2.1 General information
Servicing
• The boiler must be serviced annually by a competent,
registered gas engineer, 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/logbook is supplied with every boiler and can be
found at the back of the Installation, Commissioning and
Servicing Instructions. 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 logbook 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
2.2 Product data on energy consumption
The product data on energy consumption can be found in the
Installation, Servicing and Maintenance instruction manual for
contractors.
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 back of the Installation,
Commissioning and Servicing Instructions.

5
Controls
Greenstar FS CDi ErP– 6720818078 (2015/12)
3 Controls
▶ To gain access to the controls, pull the flap towards you and swing down.
Fig. 1 Basic boiler controls
Boiler
Controls
1Master switch for ON/OFF 6 Not used
2Power ON and fault indicator (blue) 7 Central heating temperature control
3Boiler display 8 Service Engineer button only
4Reset button 9 Service Engineer button only
5Not used 10 Burner ON indicator light (green)
6720808851-01.1Wo
1
2
34
5
6
max
reset
eco
7
8
9
1
10
6
5
23
4

6
Controls
Greenstar FS CDi ErP – 6720919078 (2015/12)
3.1 Switching the boiler ON/OFF
3.1.1 Switching ON
▶ Switch on the boiler by pressing the main power button [1].
The power indicator light shows blue[2].
Fig. 2 Power button
Switching off
▶ Switch off the boiler by pressing the main power button.
The blue power button light goes out.
3.2 Setting the central heating temperature
▶ Turn the central heating temperature control [7] to the desired level, between approximately 40 and 82°C.
When the burner is lit, the green indicator light underneath the on/off switch is illuminated [10].
Fig. 3 Settings for the central heating temperature (with approximate temperatures)
3.2.1 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 system please refer to the individual user guides for the
programmer or timer installed in your home.
6720808851-02.1Wo
1
2
34
5
6
max
reset
eco
2
1
The boiler runs for 15 minutes at minimum heating output to fill the condensate trap. The display alternates
between and the central heating flow temperature. This occurs every time the mains supply has been
interrupted.
1
2
34
5
6
max
reset
eco
10 Min
1
2
3
4
5
6
Max
---
---
---
---
---
---
---
---
40 °C
47 °C
53 °C
61 °C
68 °C
74 °C
80 °C
82 °C
6720808851-03.1Wo
7

7
Controls
Greenstar FS CDi ErP– 6720818078 (2015/12)
3.3 Frost protection (for the boiler)
Activating frost protection will turn off the heating system.
If the temperature within the boiler drops to 5°C the boiler will fire to avoid the possibility of freezing.
To activate frost protection:
▶ Leave master switch on [1].
▶ Turn the central heating temperature control [7] to frost protection .
3.3.1 Frost protection (for the heating system)
If remote pipe work is likely to be subject to freezing conditions:
▶ Ensure the installer has fitted a frost/pipe thermostat in the area to protect the pipe work from freezing.
▶ Ensure the installer has added a suitable anti-freeze fluid to the water in the central heating system.
6720808851-04.1Wo
1
2
34
5
6
max
reset
eco
1
7

8
Controls
Greenstar FS CDi ErP – 6720919078 (2015/12)
3.4 Fault condition
In the unlikely event of a fault occurring while the boiler is in operation the reset button[4] and the main power indicator [2] will
flash.
The display [3] will show a fault code.
To reset the boiler:
▶ Press the reset button [4] for three seconds.
The reset button [4] and the mains power indicator [2] will stop flashing.
The boiler will function normally, dependent on programmer and room thermostat settings.
6720808851-05.1Wo
1
2
34
5
6
max
reset
eco
3
2 4
If the fault cannot be cleared by pressing the reset button:
▶ Refer to chapter 6 Fault finding, on page 11 of this User guide.
▶ Call Worcester, Bosch Group, giving a description of the fault and, if possible, the fault code from the seven
segment display. Alternatively contact a competent registered gas engineer, such as a Gas Safe registered
engineer or British Gas engineer for assistance.

9
Boiler/compartment clearances
Greenstar FS CDi ErP– 6720818078 (2015/12)
4 Boiler/compartment clearances
Your installer will have provided adequate space around the boiler for safety and servicing access.
4.1 Boiler clearances
Clearances
Refer to the figure above and the table below for the minimum
clearances to service the boiler and for an unventilated
compartment.
CAUTION: Restricted space.
The boiler may overheat.
▶ Do not restrict this space with the addition of cupboards, shelves etc. next to the boiler.
item Minimum distance requirements for compartments
1Overall height of compartment
2Overall depth of compartment
3Overall width of compartment
4Height above the boiler to top of compartment
5Depth to front of boiler (or shelf)
6Gap between sides of boiler and compartment
7Gap between shelf and back of compartment
6720818077-08.1Wo
Compartment clearances (mm)
item Servicing Unventilated
1865 900
2 1200 800
3410 600
415 50
5600
1)
1) Can be reduced to 25mm to a removable
surface
200
65 1002)
2) Can be reduced to 50mm on one side but
maintaining the overall 200 minimum

10
Boiler/compartment clearances
Greenstar FS CDi ErP – 6720919078 (2015/12)
4.2 Airing cupboard clearances
The dimensions below show the minimum space required to install and service the boiler within an airing cupboard.
If a compartment is built around the boiler after installation, then the compartment must be separated from the boiler space by a
noncombustible partition as described in BS 6798.
4.3 Vented compartments
If the clearances available are less than those stated for an unventilated compartment or an airing cupboard then ventilation must
be provided as described in BS 5440.
A minimum of two air vents of equal size must be fitted, one at low level and another at high level on the same wall or access door
using the same air for circulation.
item Minimum clearances (mm)
12300
2625
3600
4200
5251)
1) From the front of the boiler and the front of the shelf
6100
7100
1) From the front of the boiler and the front of the shelf
6720818077-09.1Wo
1
#Boiler Air source Vent area
130CDi ErP Internal room or
space
310cm2
42CDi ErP 440cm2
230CDi ErP Outside 155cm2
42CDi ErP 220cm2
3All 100mm space between the
boiler and vents
6720818077-10.1Wo
2
1
3