Bosch Worcester benchmark Greenstar 25Si Bedienungsanleitung

Greenstar 25Si/30Si

WALL HUNG GAS-FIRED CONDENSING COMBINATION BOILER

FOR SEALED CENTRAL HEATING SYSTEMS & DOMESTIC HOT WATER

USER INSTRUCTIONS &

CUSTOMER CARE GUIDE

THIS APPLIANCE IS FOR USE WITH

NATURAL GAS OR LPG (Cat II 2H3P TYPE C13 & C33)

25 Si NATURAL GAS: 47 311 84

25 Si LIQUID PETROLEUM GAS: 47 311 88

30 Si NATURAL GAS: 47 311 85

30 Si LIQUID PETROLEUM GAS: 47 311 89

CONTACT INFORMATION

WORCESTER BOSCH:

TECHNICAL: 08705 266241

SERVICE: 08457 256206

SPARES: 01905 752571

LITERATURE: 01905 752556

TRAINING: 01905 752526

SALES: 01905 752640

WEBSITE: www.worcester-bosch.co.uk

WATER TREATMENT:

FERNOX 01799 550811

www.fernox.com

SENTINEL 0151 420 9595

www.betzdearborn.com/sentinel

FLUE TERMINAL GUARDS:

TOWER FLUE COMPONENTS

Vale Rise, Tonbridge TN9 1TB

USER INSTRUCTIONS & CUSTOMER

CARE GUIDE

PLEASE READ THESE INSTRUCTIONS

CAREFULLY BEFORE OPERATING YOUR

APPLIANCE

THESE INSTRUCTIONS ARE APPLICABLE TO

THE WORCESTER BOSCH APPLIANCE

MODEL(S) STATED ON THE FRONT COVER OF

THIS MANUAL ONLY AND MUST NOT BE USED

WITH ANY OTHER MAKE OR MODEL OF

APPLIANCE.

THE INSTRUCTIONS APPLY IN THE UK ONLY

AND SHOULD BE FOLLOWED EXCEPT FOR

ANY STATUTORY OBLIGATION.

IF YOU ARE IN ANY DOUBT CONTACT THE

WORCESTER BOSCH TECHNICAL HELPLINE.

DISTANCE LEARNING AND TRAINING

COURSES ARE AVAILABLE FROM

WORCESTER BOSCH.

THIS APPLIANCE MUST BE INSTALLED BY A

COMPETENT PERSON. FAILURE TO INSTALL

CORRECTLY COULD LEAD TO PROSECUTION.

PLEASE LEAVE THIS GUIDE, THE

INSTALLATION INSTRUCTIONS AND THE

COMPLETED BENCHMARK LOG BOOK WITH

THE USER OR AT THE GAS METER AFTER

INSTALLATION.

ABBREVIATIONS USED IN THIS BOOK:

NG - Natural Gas

LPG - Liquid Petroleum Gas

CH - Central Heating

SEDBUK - Seasonal Efficiency of Domestic

Boilers in the United Kingdom

USER INSTRUCTIONS &

CUSTOMER CARE GUIDE

WORCESTER BOSCH GREENSTAR 25Si/30Si

8 716 107 339b (11.05)

CONTENTS

WORCESTER BOSCH GREENSTAR 25Si/30Si

8 716 107 339b (11.05)

CONTENTS

INTRODUCTION

EXCELLENCE COMES AS STANDARD 2

SAFETY PRECAUTIONS 3

GENERAL NOTES 4

USING YOUR APPLIANCE

CONTROLS 6

OPERATING THE APPLIANCE 7

Switching the appliance on/off 7

Setting the central heating temperature 7

Controlling central heating 7

Frost protection 7

Controlling domestic hot water 8

Fault condition 9

ENERGY SAVING

TIPS ON ENERGY SAVING 10

MAINTENANCE

MAINTAINING YOUR APPLIANCE 13

FAULT FINDING 14

FAULT OR BREAKDOWN 15

GUARANTEE

YOUR GUARANTEE 16

GUARANTEE REGISTRATION 17

INTRODUCTION

USING YOUR

APPLIANCE

MAINTENANCE ENERGY

SAVING

GUARANTEE

EXCELLENCE COMES AS STANDARD WORCESTER BOSCH GREENSTAR 25Si/30Si

8 716 107 339b (11.05)

EXCELLENCE COMES AS STANDARD

Thank you for purchasing a Greenstar 25Si/30Si

gas-fired condensing combination boiler

manufactured by Worcester Bosch. The

company prides itself on manufacturing boilers

to the strictest quality control standards

throughout every stage of production.

Worcester Bosch has led the field in innovative

appliance design and performance for more

than 40 years. This heritage means all products

are of exceptional quality and proven reliability.

The Greenstar range in particular is extremely

energy efficient, converting up to 97% of gas

consumed into heat, offering you economical

running costs and value for money. It sits in

SEDBUK Band A, and is therefore amongst the

top energy rated appliances 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.

To find out more about Worcester Bosch log

onto www.worcester-bosch.co.uk .

INTRODUCTION

SAFETY PRECAUTIONS

WORCESTER BOSCH GREENSTAR 25Si/30Si

8 716 107 339b (11.05)

IF YOU SMELL GAS:

✗DON’T SMOKE OR STRIKE MATCHES

✗DON’T TURN ELECTRICAL SWITCHES ON OR OFF

✓DOPUT OUT NAKED FLAMES

✓DO OPEN DOORS AND WINDOWS

✓DO KEEP PEOPLE AWAY FROM THE AREA AFFECTED

✓DOTURN OFF THE CONTROL VALVE AT THE METER

✓DO CALL YOUR GAS COMPANY

BENCHMARK STANDARD

‘Benchmark’ is a code of practice for correctly

installing, commissioning and servicing of

domestic water heating appliances.

A Benchmark Checklist is provided by the

manufacturer for the installer to complete ALL

details together with their CORGI registration

number and sign to confirm that the boiler has

been installed and commissioned according to

the manufacturer’s instructions.

IMPORTANT: The completed Benchmark

Checklist will be required in the event of any

warranty work and may be required by the local

Building Control Inspector.

HEALTH & SAFETY

The appliance contains no asbestos and no

substances used in the construction process

that contravene the COSHH Regulations

(Control of Substances Hazardous to Health

Regulations 1988).

COMBUSTIBLE AND CORROSIVE MATERIALS

Do not store or use any combustible materials

(paper, thinners, paints etc.) inside or within the

vicinity of the appliance.

Chemically aggressive substances, such as

halogenated hydrocarbons containing chlorine

or fluorine compounds can corrode the

appliance and invalidate any warranty.

FITTING & MODIFICATIONS

Fitting the appliance, any controls to the

appliance and removal of the outer casing may

only be carried out by a competent engineer in

accordance with the Gas Safety (Installation

and Use) Regulations.

Flue systems must not be modified in any way

other than as described in the Installation

instructions and any misuse or unauthorised

modifications to the appliance, flue or

associated components and systems could

invalidate the warranty. The manufacturer

accepts no liability arising from any such

actions. This does not affect your statutory

rights.

SERVICING

The user is recommended to have the system

regularly serviced by a competent, qualified

engineer (such as British Gas or CORGI

registered personnel) using original spares, to

help maintain the economy, safety and reliability

of the appliance and to have the Service

Record completed in the Benchmark Checklist.

The appliance should be serviced annually after

installation unless the particular installation

conditions and usage demand more frequent

services.

IMPORTANT - ensure that the service engineer

completes the Service Record in the

Benchmark Checklist after each service.

INTRODUCTION

SAFETY PRECAUTIONS

GENERAL NOTES WORCESTER BOSCH GREENSTAR 25Si/30Si

8 716 107 339b (11.05)

To get the best from your appliance please read

these instructions carefully.

SEALED HEATING SYSTEMS

This appliance is fitted to a sealed heating

system which is pre-pressurised. Your installer

will advise you of the minimum and maximum

pressure which should be indicated on the

pressure gauge.

Check regularly that the pressure is maintained

and contact your installer or maintenance

engineer if a permanent significant drop in

pressure is indicated on the pressure gauge. If

the system loses pressure it should be re-

pressurised and the cause of the fall

investigated.

CENTRAL HEATING SYSTEMS

During the first few hours of operation of the

central heating system, check that all radiators

are being heated at an even rate. If the top of a

radiator is at a lower temperature than the

bottom then it should be vented by releasing air

through the venting screw at the top of the

radiator. Ask your installer to show you how this

is done.

This boiler is fitted to a sealed system; repeated

venting will reduce the quantity of water in the

system and this must be replenished for safe

and satisfactory operation of the appliance.

Should water leaks be found in the system or if

excessive venting is required, then a service

engineer must be contacted to inspect the

installation and rectify any fault.

Only additives that are compatible with

aluminium may be used in the system. Any

incompatible additive used will invalidate the

guarantee.

CONDENSATE DRAIN

This is a condensing appliance and the terminal

will, at times give out a plume of water vapour.

This is quite normal.

The appliance also produces quantities of

condensate which is discharged regularly by a

siphon within the boiler via a pipe to drain. This

pipe must not be blocked or altered in any way.

CLEARANCES - VENTILATED COMPARTMENT

Your installer will have provided adequate

space around the appliance for safety and

servicing access. Do not restrict this space with

the addition of cupboards, shelves etc. next to

the appliance.

GENERAL NOTES

ROOM THERMOSTAT

A room temperature controller and programmer

should be fitted to control the central heating.

Refer to the instructions supplied with the

thermostat for information on siting and setting.

THERMOSTATIC RADIATOR VALVES

It is recommended that this type of valve is

fitted to all but one of the radiators (or at least

those in the sleeping accommodation). The

remaining radiator, which must be where the

room thermostat is located, should be un-

controlled and must be left open. The

thermostatic radiator valves should conform to

the requirements of BS2767:10.

INTRODUCTION

1450mm

mm mm

+ 30mm

above elbow

5mm

600mm

+ 30mm

above elbow

200mm*

100mm**

600mm***

200mm

*600mm

(**25mm)

*600mm service clearance required to a fixed surface

(**25mm from removable door or panel)

SAFETY PRECAUTIONS

WORCESTER BOSCH GREENSTAR 25Si/30Si

8 716 107 339b (11.05)

BOILER CLEARANCES - UNVENTILATED

COMPARTMENT

The diagram opposite shows the minimum

space required to install and service the boiler

inside an unventilated compartment.

** Space required for unventilated areas with a

removable door or panel.

*** 600mm clearance required to a fixed

surface for servicing.

* This space can be reduced to 50mm for one

side only provided that the total side clearances

add up to 400mm or more.

VENTILATION

This is a room sealed appliance and does not

require any air for combustion from inside the

property. If the appliance is fitted into a

cupboard or a compartment is built around the

appliance after installation, then the

compartment must be separated from the boiler

space by a perforated non-combustible partition

as described in BS 6798.

Notwithstanding the requirements of BS 6798

and BS 5440 there is no need for ventilation

openings to be provided in the compartment

because of the low heat loss from the appliance

casing, if the clearances shown are maintained.

Do not operate the appliance if the flue terminal

fitted on the outside wall or roof is obstructed

or damaged.

PUMP ANTI-SEIZURE

If there has been no heating demand for 24

hours the boiler will run the system pump for a

few seconds to reduce the possibility of pump

seizure during long periods of inactivity, which

is usually more frequent during the summer

months.

GENERAL NOTES

INTRODUCTION

+ 30mm

above elbow

200mm*

100mm**

600mm***

200mm

***

CONTROLS WORCESTER BOSCH GREENSTAR 25Si/30Si

8 716 107 339b (11.05)

CONTROLS

1. MASTER SWITCH FOR ON/OFF

2. CENTRAL HEATING

TEMPERATURE CONTROL

3. DOMESTIC HOT WATER TEMPERATURE

CONTROL

4. MAINS ON/OFF INDICATOR + FAULT

DIAGNOSTIC LIGHT

5. BURNER ON INDICATOR LIGHT (GREEN)

6. ECO BUTTON (DOMESTIC HOT WATER

PRE-HEAT ON/OFF)

7. FAULT RESET BUTTON

8. SYSTEM PRESSURE GAUGE

9. POSITION FOR OPTIONAL PROGRAMMER

USING YOUR

APPLIANCE

OPERATING THE APPLIANCE

WORCESTER BOSCH GREENSTAR 25Si/30Si

8 716 107 339b (11.05)

SWITCHING THE APPLIANCE ON/OFF

Switching on

Switch on the appliance by pressing the master

switch.

The indicator light shows blue

Switching off

Switch off the appliance by pressing the master

switch.

The blue indicator light goes out.

SETTING THE CENTRAL HEATING TEMPERATURE

Turn the central heating temperature control to

the desired level, between 40°C and 82°C

When the burner is lit, the green indicator light

underneath the on/off switch is illuminated.

CONTROLLING CENTRAL HEATING

Set the timer to the correct time.

Set room thermostat to the desired room

temperature.

Set the thermostatic radiator valves to the

desired settings.

FROST PROTECTION

Leave master switch on.

Turn the central heating temperature control

to.

If the temperature falls to 5°C within the boiler it

will fire to avoid the possibility of freezing.

Add a suitable anti-freeze fluid to the water in

the central heating system.

If remote pipework is likely to be subjected to

freezing conditions, ensure the installer has

fitted a frost thermostat in the area to protect

the pipework.

OPERATING THE APPLIANCE

USING YOUR

APPLIANCE

CONTROLLING THE HOT WATER TEMPERATURE

The hot water temperature can be set to

between approx. 40°C and 60°C using the

temperature control.

DOMESTIC HOT WATER PRE-HEAT

Pre-heat reduces the time taken to produce hot

water at the tap and is controlled by the ECO

button.

Press the ECO button to select either:

When the ECO button is not illuminated the

boiler will be in pre-heat mode (which will

reduce the time taken to produce hot water at

the tap).

When the ECO button is illuminated the boiler

will be in ECO mode with no pre-heat available.

OPERATING THE APPLIANCE

OPERATING THE APPLIANCE WORCESTER BOSCH GREENSTAR 25Si/30Si

8 716 107 339b (11.05)

USING YOUR

APPLIANCE

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