Baxi EcoBlue Heat Quick Start Manual

United Kingdom

EcoBlue Heat

Installation and Service Manual

Gas Fired Wall Mounted Powered Flue Condensing Boiler

12 - 15 - 18 - 21 - 24

These instructions include the Benchmark Commissioning Checklist

and should be left with the user for safe keeping.

They must be read in conjunction with the Flue Installation Guide.

1 Introduction

Model Range

Baxi EcoBlue 12 Heat

G.C.No 41 470 02

Baxi EcoBlue 15 Heat

G.C.N

41 470 03

Baxi EcoBlue 18 Heat

41 470 04

G.C.N

Baxi EcoBlue 21 Heat

G.C.N

41 470 05

Baxi EcoBlue 24 Heat

G.C.No 41 470 06

Building Regulations and the Benchmark Commissioning Checklist

Building Regulations (England & Wales) require notification of the

installation of a heating appliance to the relevant Local Authority

Building Control Department. This can be achieved via a

Competent Persons Self Certification Scheme as an option to

notifying the Local Authority directly.

The Health & Safety Executive operates the ‘Gas Safe Register’, a self-

certification scheme for gas heating appliances.

This company is a member of the Benchmark initiative and fully

supports the aims of the programme. Its aim is to improve the

standards of installation and commissioning of central heating systems

in the UK and to encourage the regular servicing of all central heating

systems to ensure safety and efficiency.

Building Regulations require that installations should comply with

manufacturer's instructions. It is therefore important that the

commissioning checklist is completed by the installer. The relevant

section of Building Regulations only relates to dwellings. Therefore the

checklist only applies if the appliance is being installed in a dwelling or

some related structure.

The flowchart opposite gives guidance for installers on the process

necessary to ensure compliance with Building Regulations.

The Benchmark Scheme

0086

Benchmark places responsibilities on both manufacturers and installers.

The purpose is to ensure that customers are provided with the correct

equipment for their needs, that it is installed, commissioned and

serviced in accordance with the manufacturer’s instructions by

competent persons and that it meets the requirements of the

appropriate Building Regulations. The Benchmark Checklist can be

used to demonstrate compliance with Building Regulations and should

be provided to the customer for future reference.

ISO 9001

FM 00866

© Baxi Heating UK Ltd 2014 All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, or stored in any retrieval system of any nature (including in any database), in each case whether electronic, mechanical, recording or otherwise, without the prior written permission of the copyright owner, except for permitted fair dealing under Copyrights, Designs and Patents Act 1988.

Applications for the copyright owner’s permission to reproduce or make other use of any part of this publication should be made, giving details of the proposed use, to the following address:

Installers are required to carry out installation, commissioning and

servicing work in accordance with the Benchmark Code of Practice

which is available from the Heating and Hotwater Industry Council who

manage and promote the Scheme. Visit www.centralheating.co.uk for

more information.

The Company Secretary, Baxi Heating UK Limited, Brooks House, Coventry Road, Warwick. CV34 4LL

Full acknowledgement of author and source must be given.

WARNING: Any person who does any unauthorised act in relation to a copyright work may be liable to criminal prosecution and civil claims for damages.

You have just purchased one of our appliances and we thank you for the trust you have placed in our products. Please note that the product will provide good service for a longer period of time if it is regularly checked and maintained. Our customer support network is at your disposal at all times.

2 EcoBlue Heat 7212435 - 02 (08/14)

Installer Notification Guidelines

Choose Building

Regulations Notification

Route

Installer Notification Guidelines

Competent Person's

Self Certification Scheme

Install and Commission this appliance to manufacturer's

instructions

Complete the

Benchmark Checklist

If you notify via the ‘Gas Safe

the Building Regulations

certificate on members’ behalf

Building Control

Contact your relevant Local

Authority Building Control

(LABC) who will arrange

an inspection or contact a government approved

inspector

Install and Commission this appliance to manufacturer's

instructions

Scheme Members only

Call ‘Gas Safe Register’ on:

0800 408 5577

or log onto:

www.gassaferegister.co.uk

within 10 days

You must ensure that the

certificate number issued by

the ‘Gas Safe Register’ is written

onto the Benchmark Checklist

‘Gas Safe Register’ will issue a

Building Regulations Compliance

Certificate to the property owner

and inform the relevant LABC

Complete the

Benchmark Checklist

LABC will record the data

and will issue a

certificate of compliance

7212435 - 02 (08/14) EcoBlue Heat 3

Contents

1 Introduction

1.1 General

1.2 Additional Documentation

1.3 Symbols Used

1.4 Abbreviations

1.5 Extent of Liabilities

1.5.1 Manufacturer’s Liability

1.5.2 Installer’s Liability

1.6 Homologations

1.6.1 Certifications

1.6.2 Directives

1.6.3 Standards

2 Safety

2.1 General Safety Instructions

2.2 Recommendations

2.3 Specific Safety Instructions

2.3.1 Handling

3 Technical Specifications

3.1 Technical Data

3.2 Dimensions and Connections

3.3 Electrical Diagram

4 Description of the Product

4.1 General Description

4.2 Operating Principle

4.3 Main Components

4.4 Control Panel Description

4.4.1 User Interaction Controller

4.5 Standard Delivery

4.6 Accessories & Options

4.6.1 Optional Extras

7 8 8 8 9

9 10 10 10 10

12 12 13 13

14 15 16

17 18 19 20 20 21 21 21

5 Before Installation

5.1 Installation Regulations

5.2 Installation Requirements

5.2.1 Gas Supply

5.2.2 Electrical Supply

5.2.3 Hard Water Areas

5.2.4 Bypass

5.2.5 System Control

5.2.6 Treatment of Water Circulating Systems

5.2.7 System Details - General

5.2.8 Low Head Installation / Open

5.2.9 Sealed Systems Details

5.3 Choice of the Location

5.3.1 Location of the Appliance

5.3.2 Data Plate

5.3.3 Bath & Shower Rooms

5.3.4 Ventilation

5.3.5 Condensate Drain

5.3.6 Clearances - Access in Service

5.3.7 Flue / Chimney Location

5.3.8 Horizontal Flue / Chimney Systems

22 22 22 23 23 23 23 23 24 24 25 26 26 26 26 26 27 29 30 32

4 EcoBlue Heat 7212435 - 02 (08/14)

Contents

5.3.9 Flue/Chimney Trim

5.3.10 Terminal Guard

5.3.11 Flue/Chimney Deflector

5.3.12 Flue/Chimney Accessories

5.4 Unpacking & Initial Preparation

5.4.1 Unpacking

5.4.2 Initial Preparation

5.4.3 Making the Water Connection

5.4.4 Filling the Condensate Trap

5.4.5 Connecting the Condensate Drain

5.4.6 Connecting the Gas Supply

6 Installation

6.1 Air Supply / Flue Gas Connections

6.1.1 Connecting the Top Flue

6.2 Electrical Connections

6.2.1 Electrical Connections of the Appliance

6.2.2 Connecting External Devices

6.3 Filling the System

6.4 Completing the Installation

6.4.1 Completion

7 Commissioning

7.1 General

7.2 Checklist before Commissioning

7.2.1 Preliminary Electrical Checks

7.2.2 Checks

7.3 Commissioning Procedure

7.4 Gas Settings

7.4.1 ‘Chimney Sweep’ Mode

7.4.2 ‘Chimney Sweep’ Mode - Combustion Check

7.5 Configuring the System

7.5.1 Check the Operational (Working) Gas Inlet Pressure & Gas Rate

7.6 Final Instructions

33 33 33 33 34 34 34 35 35 35 35

36 36 38 38 38 39 39 39

40 40 40 40 40 41 41 42 43 43 44

8 Operation

8.1 General

8.2 Start-Up

8.3 Shutdown

8.4 Use of the Control Panel

8.5 Frost Protection

9 Settings

9.1 Parameters

45 45 45 46 46

7212435 - 02 (08/14) EcoBlue Heat 5

Contents

10 Maintenance

10.1 General

10.2 Standard Inspection & Maintenance Operation

10.3 Specific Maintenance Operation

10.3.1 Spark Ignition Electrode

10.3.2 Automatic Air Vent

10.3.3 Condensate Trap

10.3.4 Removal of Ducts

10.3.5 Pressure Switch (21 & 24 only)

10.3.6 Flow Temperature Sensor

10.3.7 Overheat Sensor

10.3.8 Return Temperature Sensor

10.3.9 Parameter Unit

10.3.10 Gas Valve

10.3.11 Control & Fan Assembly

10.3.12 User Interaction Controller

10.3.13 Setting the Gas Valve (CO

11 Troubleshooting

11.1 Error Codes - Auto Reset

11.2 Lockout Condition

12 Decommissioning Procedure

12.1 Decommissioning Procedure

Check)

48 49 50 50 50 50 51 51 52 52 52 52 53 54 54 55

56 57

13 Spare Parts

13.1 General

13.2 Spare Parts List

14 Notes

Benchmark Commissioning Checklist

59 59

6 EcoBlue Heat

7212435 - 02 (08/14)

1 Introduction

1.1 General

Introduction 1

WARNING

Installation, repair and maintenance must only be carried out only by a competent person. This document is intended for use by competent persons,

All Gas Safe registered engineers carry an ID card with their licence number and a photograph. You can check your engineer is registered by telephoning 0800 408 5500 or online at www.gassaferegister.co.uk

This appliance must be installed in accordance with the manufacturer’s instructions and the regulations in force. If the appliance is sold or transferred, or if the owner moves leaving the appliance behind you should ensure that the manual is kept with the appliance for consultation by the new owner and their installer. Read the instructions fully before installing or using the appliance.

In GB, this must be carried out by a competent person as stated in the Gas Safety (Installation & Use) Regulations (as may be amended from time to time). Definition of competence: A person who works for a Gas Safe registered company and holding current certificates in the relevant ACS modules, is deemed competent.

In IE, this must be carried out by a competent person as stated in I.S. 813 “Domestic Gas Installations”.

The addition of anything that may interfere with the normal operation of the appliance without express written permission from the manufacturer or his agent could invalidate the appliance warranty. In GB this could also infringe the Gas Safety (Installation and Use) Regulations.

The appliance is designed as a boiler for use in residential domestic environments on a governed meter supply only. The selection of this boiler is entirely at the owner’s risk. If the appliance is used for purposes other than or in excess of these specifications, the manufacturer will not accept any liability for resulting loss, damage or injury.

The manufacturer will not accept any liability whatsoever for loss, damage or injury arising as a result of failure to observe the instructions for use, maintenance and installation of the appliance.

WARNING

Check the information on the data plate is compatible with local supply conditions.

7212435 - 02 (08/14) EcoBlue Heat 7

1 Introduction

1.2 Additional Documentation

1.3 Symbols Used

These Installation & Service Instructions must be read in conjunction with the Flue Accessories & Fitting Guide supplied in the Literature Pack.

Various timers, external controls, flue accessories, etc. are available as optional extras. Full details are contained in the relevant sales literature.

In these instructions, various levels are employed to draw the user's attention to particular information. In so doing, we wish to safeguard the user's safety, prevent hazards and guarantee correct operation of the appliance. Each level is accompanied by a warning triangle

DANGER

1.4 Abbreviations

Risk of a dangerous situation causing serious physical injury.

WARNING

Risk of a dangerous situation causing slight physical injury.

CAUTION

Risk of material damage.

Signals important information .

Signals a referral to other instructions or other pages in the instructions.

8 EcoBlue Heat

DHW: Domestic hot water

CH: Central heating

GB: Great Britain

IE: Ireland

BS: British standard

HHIC: Heating and Hotwater Industry Council

CSM: Chimney Sweep Mode

PCB: Printed Circuit Board

PU: Parameter Unit

7212435 - 02 (08/14)

1.5 Extent of Liabilities

Introduction 1

1.5.1 Manufacturer's Liability

Our products are manufactured in compliance with the requirements of the various european applicable Directives. They are therefore delivered with marking and all relevant documentation. In the interest of customers, we are continuously endeavouring to make improvements in product quality. All the specifications stated in this document are therefore subject to change without notice.

The manufacturer will not accept any liability for loss, damage or injury arising as a result of:-

Failure to abide by the instructions on using the appliance. Failure to regularly maintain the appliance, or faulty or inadequate maintenance of the appliance. Failure to abide by the instructions on installing the appliance.

This company declares that no substances harmful to health are contained in the appliance or used during appliance manufacture.

The appliance is suitable only for installation in GB and IE and should be installed in accordance with the rules in force, and only used in a suitably ventilated location.

In GB, the installation must be carried out by a Gas Safe Registered Installer. It must be carried out in accordance with the current and relevant requirements of legislation and guidance including the:-

• Gas Safety (Installation & Use) Regulations.

• The appropriate Building Regulations either The Building Regulations, The Building Regulations (Scotland), Building Regulations (Northern Ireland).

• The Water Fittings Regulations or Water Byelaws in Scotland.

• The Current I.E.E. Wiring Regulations.

Where no specific instructions are given, reference should be made to the relevant British Standard Code of Practice.

In IE, the installation must be carried out by a competent Person and installed in accordance with the current edition of I.S. 813 ‘Domestic Gas Installations’, the current Building Regulations and reference should be made to the current ETCI rules for electrical installation.

Prior to commissioning all systems must be thoroughly flushed and treated after installation with inhibitor (see section 5.2.6). Failure to do so will invalidate the appliance warranty.

Incorrect installation could invalidate the warranty and may lead to prosecution.

7212435 - 02 (08/14) EcoBlue Heat 9

1 Introduction

1.5.2 Installer's Responsibility

The installer is responsible for the installation and initial start up of the appliance. The installer must adhere to the following:

Read and follow the instructions given in the manuals provided with the appliance. Carry out installation in compliance with the prevailing legislation and standards. Ensure the system is flushed and inhibitor added. Install the flue/chimney system correctly ensuring it is operational and complies with prevailing legislation and standards, regardless of location of the boiler’s installation. Only the installer should perform the initial start up and carry out any checks necessary. Explain the installation to the user. Complete the Benchmark Commissioning Checklist - this is a condition of the warranty ! Warn the user of the obligation to check the appliance and maintain it in good working order. Give all the instruction manuals to the user.

1.6 Homologations

1.6.1 Certifications

EC - Declaration of Conformity

Baxi Heating Uk Limited being the manufacturer / distributor within the European Economic Area of the following

Baxi EcoBlue Heat declare that the above is in conformity with the provisions of the Council Directive

2009/142 EC 92/42 EEC 2004/108 EC 2006/95 EC and has been subject to the following conformity procedures laid down in

Annex 2 - Article 3 of 2009/142 EC under the supervision of the British Standards Institution, a Notified Body authorized by the United Kingdom Competent Authority, and carrying the Notified Body Number 0086.

1.6.2 Directives

The boiler meets the requirements of Statutory Instrument “ The Boiler (Efficiency) Regulations 1993 N meet the requirements of Directive 92/42/EEC on the energy efficiency requirements for new hot water boilers fired with liquid or gaseous fuels:-

3083” and is deemed to

10 EcoBlue Heat

Type test for purpose of Regulation 5 certified by: Notified Body 0063.

Product/Production certified by: Notified Body 0086.

For GB/IE only.

7212435 - 02 (08/14)

Introduction 1

1.6.3 Standards

Codes of Practice - refer to the most recent version

In GB the following Codes of Practice apply: Standard Scope BS 6891 Gas Installation. BS 5546 Installation of hot water supplies for domestic

purposes. BS EN 12828 Heating systems in buildings. BS EN 12831 Heating systems in buildings - Calculation of

load. BS EN 14336 Installation & commissioning of water based

heating systems. BS 6798 Installation of gas fired hot water boilers. BS 5440 Part 1 Flues. BS 5440 Part 2 Ventilation. BS 7074 Expansion vessels and ancillary equipment for

sealed water systems. BS 7593 Treatment of water in domestic hot water

central heating systems.

In IE the following Codes of Practice apply: Standard Scope I.S. 813 Domestic Gas Installations. The following standards give valuable additional information; BS 5546 Installation of hot water supplies for domestic

purposes. BS EN 12828 Heating systems in buildings. BS EN 12831 Heating systems in buildings - Calculation of

load. BS EN 14336 Installation & commissioning of water based

heating systems. BS 7074 Expansion vessels and ancillary equipment for

sealed water systems. BS 7593 Treatment of water in domestic hot water

central heating systems.

7212435 - 02 (08/14) EcoBlue Heat 11

2 Safety

2.1 General Safety Instructions

2.2 Recommendations

DANGER

If you smell gas:

1. Turn off the gas supply at the meter

2. Open windows and doors in the hazardous area

3. Do not operate light switches

4. Do not operate any electrical equipment

5. Do not use a telephone in the hazardous area

6. Extinguish any naked flame and do not smoke

7. Warn any other occupants and vacate the premises

8. Telephone the National Gas Emergency Service on:- 0800 111 999

WARNING

Installation, repair and maintenance must be carried out by a Gas Safe Registered Engineer (in accordance with prevailing local and national regulations).

When working on the boiler, always disconnect the boiler from the mains and close the main gas inlet valve.

After maintenance or repair work, check the installation to ensure that there are no leaks.

CAUTION

The boiler should be protected from frost.

Only remove the casing for maintenance and repair operations. Replace the casing after maintenance and repair operations.

12 EcoBlue Heat

7212435 - 02 (08/14)

2.3 Specific Safety Instructions

Safety 2

2.3.1 Handling

General

• The following advice should be adhered to, from when first handling the boiler to the final stages of installation, and also during maintenance.

• Most injuries as a result of inappropriate handling and lifting are to the back, but all other parts of the body are vulnerable, particularly shoulders, arms and hands. Health & Safety is the responsibility of EVERYONE.

• Before lifting the boiler, the circumstances of the installation must be assessed, please use appropriate manual handling techniques and equipment.

• Do not handle or lift unless you feel physically able.

• Wear appropriate Personal Protection Equipment e.g. protective gloves, safety footwear etc.

Preparation

• Co-ordinate movements - know where, and when, you are both going.

• Minimise the number of times needed to move the boiler plan ahead.

• Always ensure when handling or lifting the route is clear and unobstructed. If possible avoid steps, wet or slippery surfaces, unlit areas etc. and take special care on ladders/into lofts.

Technique

• When handling or lifting always use safe techniques - keep your back straight, bend your knees. Don’t twist - move your feet, avoid bending forwards and sideways and keep the load as close to your body as possible.

• Where possible transport the boiler using a sack truck or other suitable trolley.

• Always grip the boiler firmly, and before lifting feel where the weight is concentrated to establish the centre of gravity, repositioning yourself as necessary. See the ‘Installation’ section of these instructions for recommended lift points.

Remember

• The circumstances of each installation are different. Always assess the risks associated with handling and lifting according to the individual conditions.

• If at any time when installing the boiler you feel that you may have injured yourself STOP !! DO NOT ‘work through’ the pain - you may cause further injury.

IF IN ANY DOUBT DO NOT HANDLE OR LIFT THE BOILER OBTAIN ADVICE OR ASSISTANCE BEFORE PROCEEDING !

7212435 - 02 (08/14) EcoBlue Heat 13

3 Technical Specification

3 Technical Specifications

3.1 Technical Data

Appliance Type C13 C33 C

Appliance Category CAT I

Heat Input (Gross) Max Min

12 model kW 14.88 8.59

15 model kW 18.32 8.59

18 model kW 21.75 8.59

21 model kW 24.04 8.59

24 model kW 28.62 8.59

Heat Output

(Non Condensing 70° C Mean Water Temp) Max Min

12 model kW 13 7.5

15 model kW 16 7.5

18 model kW 19 7.5

21 model kW 21 7.5

24 model kW 25 7.5

Max Gas Rate (Natural Gas - G20) (After 10 Mins)

m3/hr

12 model 1.42

15 model 1.75

18 model 2.07

21 model 2.29

24 model 2.73

Dynamic (nominal) Inlet Pressure

(Natural Gas - G20)

mbar 20

with a CV of 37.78 MJ/m

Horizontal Flue Terminal Diameter 100mm Dimensions Projection 125mm

Connections

Gas Supply - 22mm Central Heating Flow (compression fitting) - 22mm Central Heating Return (compression fitting) - 22mm Condensate Drain - for 21.5mm plastic waste pipe

Outercase Dimensions

Nox Class 5

Electrical Supply 230V~ 50Hz

(Appliance must be connected to an earthed supply)

Power Consumption Max Rate

12 model W 17 15 model W 20 18 model W 23 21 model W 25 24 model W 33

External Fuse Rating 3A

Overall Height Inc Flue Elbow - 790mm Casing Height - 625mm Casing Width - 370mm Casing Depth - 270mm

Clearances

Both Sides 5mm Min Above Casing (Top Flue) 19 0mm Min Above Casing (Rear Flue) 35mm Min Below Casing (in Cupboard) 35mm Min

Internal Fuse Rating (Terminal Strip)

Fuse 1.6T

Electrical Protection IPX4D

Water Content

litres 1.7

Static Head

max 25 metres Below Casing 120 mm Min Front (For Servicing) 800mm Min

Low Head 0.4m min

Front (In Operation) 5mm Min

See Section 5.3.6 for full details !

Weights

Packaged Boiler Carton 21.5 kg Installation Lift Weight 19.5 kg

System Detail

fully pumped open vented & sealed systems

Pressure Switch

12/15/18 Model - Not Fitted

CO/CO2Ratio Up to a maximum

21/24 Model - Fitted

of 0.004

Flow Temperature (adjustable)

30° C to 80° C (± 5° C)

Recommended System

NOTE: All data in this section are nominal

values and subject to normal production tolerances.

Temperature Drop

Condensing 20°C 36°F

SEDBUK 2009 Declaration

12 model - 89.2% 21 model - 89.2% 15 model - 89.2% 24 model - 89.1% 18 model - 89.2%

SEDBUK 2005 Declaration

12 model - 90.2% 21 model - 90.1% 15 model - 90.2% 24 model - 90% 18 model - 90.1%

This value is used in the UK Government’s Standard

Assessment Procedure (SAP) for energy rating of

dwellings. The test data from which it has been

calculated has been certified by 0063.

14 EcoBlue Heat

300

250

200

150

100

Pressure drop (mbar)

0.00.20.40.60.81.01.21.41.61.8

Pressure drop vs Flow

Flow (m

hr)

7212435 - 02 (08/14)

3.2 Dimensions and Connections

Technical Specifications 3

At Least

1.5°

DIMENSIONS

A 625mm

For clearances see Section 5.3.6

B 270mm

C 370mm

D 116mm Ø Min.

E 165mm

F 155mm

G 110mm

360° Orientation

H 550mm

NOTE: There must be no part of the air duct (white tube) visible outside the property after

installation. The flue seal should fit neatly and effect a good seal.

Tube Ø 100mm

IMPORTANT: The 1.5° fall provided by the elbow is to allow condensate to run back to the boiler, for disposal through the condensate discharge pipe. When using extensions the fall along the flue system must be increased to 3°. Where extensions are used ensure the clearance above the top of the flue elbow (X) is as shown in the table below:-

6m max

Flue length (Y)

up to 1m

1m - 2m

2m - 3m

3m - 4m

4m - 5m

5m - 6m

Clearance (X)

30mm

84mm

134mm

186mm

238mm

290mm

At Least 3°

7212435 - 02 (08/14) EcoBlue Heat 15

3 Technical Specifications

3.3 Electrical Diagram

g/y

Safety Thermostat

User Interaction

Gas Valve

Controller

3.1 Technical Data (cont)

g/y

Electrode

Electrical Test Point

Mains

g/y

Pressure Switch (where fitted)

Not used

Return Sensor

Flow Sensor

Parameter

Unit

Loop Connector (where no pressure switch fitted)

16 EcoBlue Heat

Key To Wiring Colours

b - Blue

r - Red

br - Brown

g/y - Green/Yellow

All other wires are black

7212435 - 02 (08/14)

4 Description of the Product

4.1 General Description

Description of the Product 4

1. The Baxi EcoBlue Heat Range are gas fired wall mounted powered flue condensing boilers.

2. The maximum output of the boiler is :-

12 model - 13 kW 15 model - 16 kW 18 model - 19 kW 21 model - 21 kW 24 model - 25 kW

Information Label

Slide Forward

Fig. 1

Data Label

3. The boiler modulates automatically to the system load up to the set output. It is designed for use on Natural Gas (G20) only.

4. The two illuminated User Interaction Controller push buttons provide information about the operating condition of the boiler.

5. The boiler is suitable for fully pumped open vented central heating and domestic hot water systems and sealed systems.

6. An information label giving details of the model, serial number and Gas Council number is situated on the front left underside of the outercase and is accessed by pulling forward gently (Fig. 1).

7. The boiler data label is positioned on the inside lower righthand side of the boiler and can be seen when the outercase panel is removed (Fig. 1).

8. The boiler is intended to be installed in residential/domestic environments on a governed meter supply only.

9. The boiler must be installed with one of the purpose designed flues such as one of the standard telescopic flue kits detailed in the Flue Accessories & Fitting Guide.

All systems must be thoroughly cleansed, flushed and treated with inhibitor (see Section 5.2.6).

These Installation & Servicing Instructions MUST be read in conjunction with the Flue Accessories & Fitting Guide supplied in the Literature Pack.

7212435 - 02 (08/14) EcoBlue Heat 17

3 Technical Specifications

4.2 Operating Principle

Mains On.

(CH or DHW demand)

1. Switched Live On: When the boiler switched live turns on the boiler, a 20 second check cycle takes place. If the flow temperature is less than the boiler set-point temperature the ignition cycle will start. Pre-purge, Ignition and Burner on.

Self test cycle for 20s

(output setting displayed)

temperature less

than set point ?

10 second pre-purge

5 second ignition

Flame detected ?

Burner on

Modulate output

Flow

YES

5th ignition attempt ?

YES

Ignition Lockout

2. Fan Pre-Purge: The boiler has a 10 second pre-purge (Fan On, Spark Generator and Gas Valve off) before the start of the ignition sequence.

3. Ignition: The boiler has a 5 second ignition period (Fan, Spark Generator and Gas Valve on) and burner on occurs when a flame is detected. If a flame is not detected within the 5 second ignition period then 4 more ignition attempts are made. If a flame is not detected after the 5 ignition attempts the boiler goes to an ignition lock-out and an error code is displayed.

4. Burner on: After a successful ignition, Burner on occurs (Fan and Gas Valve on, Spark Generator off). The boiler flow temperature is controlled by varying the fan speed (and thereby the gas rate) to achieve the optimum boiler operation. If the boiler flow temperature exceeds the boiler set-point, the burner will turn off (Fan and Gas Valve off).

5. Overtemperature: If a boiler overtemperature event occurs (triggering the safety thermostat) the burner shuts down (Fan off and Gas Valve off). A locking signal is generated and an error code is displayed.

6. Lockout: If a lock-out error is displayed (Fan, Spark Generator and Gas Valve off) the boiler can only be reset by manually pressing the reset button. If 5 lock-outs are reset within a 1 hour period then boiler becomes inoperable. It is necessary to switch off the power supply to the boiler, and when reinstated the reset button pressed again to operate the appliance.

Flow temp or

rate of rise too

high ?

Burner Off

Over Temp

Fault ?

YES

Lockout

18 EcoBlue Heat

Any lock-out errors that occur regularly will require further investigation and rectification.

Technical Enquiries: 0844 871 1555.

YES

Mains Off

(Demand satisfied)

7212435 - 02 (08/14)

4.3 Main Components

Description of the Product 4

1. Heat Exchanger

2. Combustion Control Unit

3. Condensate Trap

4. Exhaust Tube

5. Inlet Silencer

6. User Interaction Controller

7. Gas Cock

8. Air Pressure Switch (21 & 24 model only)

9. System Drain Cock

10. Air Vent

7212435 - 02 (08/14) EcoBlue Heat 19

4 Description of the Product

4.4 Control Panel Description

4.4.1 USER INTERACTION CONTROLLER

(Control Panel) (Fig. 2)

Key to symbols

Heating Water Temperature

Sweep Key and Status Signals

Reset button and On/Off Signal

1. The User Interaction Controller has 2 illuminating push buttons which provide information about the operating condition of the boiler.

Fig. 2

2. The RESET button lights up green when the boiler has a demand for CH or DHW.

3. The button can flash in a range of colours and at different frequencies.

4. The User Interaction Controller also has one rotary knob. The rotary knob can be used to set the maximum flow

temperature of the heating water.

Maximum temperature is 80°C

5. The temperature on this rotary knob must be set to a higher

temperature than the cylinder thermostat to achieve the required hot water demand.

20 EcoBlue Heat

7212435 - 02 (08/14)

+ 44 hidden pages