Baxi MainEco Heat 15 User manual

Baxi MainEco Heat
User Guide
Gas Fired Wall Mounted Condensing Boiler
15 - 18 - 24
en
United Kingdom
Please keep these instructions in a safe place.
If you move house please hand them over to the next occupier.

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Dear Customer,
Thank you for purchasing this appliance.
Please read this manual carefully before using the product and keep it in a safe place for future reference.
In order to ensure continued safe and efficient operation we recommend that the product is regularly maintained. Our Service and
After Sales organization can assist with this.
We hope you will receive many years of satisfactory service.
The Benchmark Scheme
Baxi Heating UK Ltd is a licensed member of the Benchmark Scheme
which aims to improve the standards of installation and commissioning
of domestic heating and hot water systems in the UK and to encourage
regular servicing to optimise safety, efficiency and performance.
Benchmark is managed and promoted by Heating and Hotwater
Industry Council. For more information visit www.centralheating.co.uk
0086
© Baxi Heating UK Ltd 2015 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:
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.
Model Range
Baxi MainEco 15 Heat ErP
G.C.No 41-470-40
Baxi MainEco 18 Heat ErP
G.C.No 41-470-41
Baxi MainEco 24 Heat ErP
G.C.No 41-470-42
ISO 9001
FM 00866
MainEco Heat

7219722 - 01 (04/15) MainEco Heat 3
Contents
Contents
1 Introduction
1.1 General
1.2 Additional Documentation
1.3 Symbols Used
1.4 Abbreviations / Glossary
1.5 Extent of Liabilities
1.5.1 Manufacturer’s Liability
1.5.2 Installer’s Responsibility
1.5.3 User’s Responsibility
2 Safety
2.1 General Safety Instructions
2.2 Recommendations
2.2.1 Benchmark Commissioning Checklist
3 Technical Specifications
3.1 Technical Data
3.1.1 Clearances
4 Description of the Product
4.1 General Description
4.2 Operating Principle
4.2.1 In Operation
4.3 Control Panel Description
4.3.1 User Interaction Controller
4.3.2 Indicator Lights
4.4 Standard Delivery
4.5 Accessories & Options
4.5.1 Optional Extras
5 Operation
5.1 Operation Checking Procedure & Basic Fault Identification
5.2 Shutdown
5.3 Frost Protection
6 Settings
6.1 Setting the Boiler Flow Temperature
7 Maintenance
7.1 General
7.2 Maintenance Instructions
7.3 Filling the System
7.4 Venting the System
7.5 Draining the System
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Contents
8 Troubleshooting
8.1 Fault Warning & Lock-out Codes
8.2 Fault Finding
9 Decommissioning
9.1 Decommissioning Procedure
10 Disposal
10.1 Disposal / Recycling
11 Environmental
11.1 Energy Saving
11.2 Room Thermostats and Settings
12 Warranty
12.1 General
12.2 Terms of Warranty
13 Appendix
13.1 ErP Information
13.1.1 Product Fiche - Boiler Space Heaters
13.1.2 Package Fiche - Boilers
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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 manual is intended for the user of the Baxi MainEco Heat
boiler. 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.
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.
6 7219722 - 01 (04/15)
1 Introduction
1 Introduction
1.1 General
1.2 Additional Documentation
1.3 Symbols Used
WARNING
Installation, repair and maintenance must only be
carried out only by a competent person. This
document is intended for use by competent persons,
Various timers, external controls, etc. are available as optional
extras. Full details are contained in the relevant sales literature.
In these instructions, various danger 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.
DANGER
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.
MainEco Heat

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Introduction 1
DHW: Domestic Hot Water
CH: Central Heating
GB: Great Britain
IE: Ireland
BS: British Standard
HHIC: Heating and Hotwater Industry Council
1.4 Abbreviations / Glossary
1.5 Extent of Liabilities
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.
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.
Incorrect installation could invalidate the warranty and may lead
to prosecution.

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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
instructions:
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 in the
Installation Manual - 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.
1.5.3. User's Responsibility
To guarantee optimum operation of the installation, you must
observe the following instructions:
Read and observe the instructions given in the manuals
supplied with the appliance.
Seek the assistance of a qualified installer for the installation
and initial commissioning.
Ask the installer to explain the installation.
Have the required annual inspection and maintenance
carried out by a qualified installer and ensure the Benchmark
Service Record in the Installation Manual is completed - this
is a condition of the warranty !
Keep the manuals in good condition and near to the
appliance.
This appliance must not be used by people with a lack of
experience or knowledge, unless they are supervised by
someone familiar with the appliance or if they have been
instructed on how to operate the appliance correctly. Do not
allow children to operate or play with the appliance.
MainEco Heat

WARNING
Do not touch flue/chimney pipes. Depending on the
settings of the appliance, the temperature of
flue/chimney pipes may exceed 60 °C.
Do not touch radiators for long periods. Depending on
the settings of the appliance, the temperature of
radiators may reach 85 °C.
Take precautions with domestic hot water. Depending
on the settings of the appliance, domestic hot water
temperature may reach 65 °C.
CAUTION
Do not neglect to service the appliance. Contact a
qualified professional or take out a maintenance
contract for the annual servicing of the appliance.
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Safety 2
2 Safety
2.1 General Safety Instructions
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
The boiler can be isolated at the gas valve under the
appliance by turning the tap through 90° (1/4turn).
For advice please contact your Installer, Annual
Service Provider or Baxi Customer Support - The
Service Division of Baxi. You can contact Baxi
Customer Support on telephone number 0344 871 1525.
When contacting Baxi Customer Support it will be useful
to have the ‘Benchmark Checklist’ at the back of the
Installation & Service Manual to hand as it includes details
relevant to the boiler and installation.

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2 Safety
2.2 Recommendations
CAUTION
Only qualified professionals are authorised to work
on the appliance and the installation.
For sealed systems regularly check the water
pressure in the system (recommended pressure is
1.5 bar). Your installer will advise on the method of
repressurising if required.
Keep the appliance accessible at all times.
Do not remove or cover the serial number label
affixed to the slide-out flap at the boiler lower left.
It must remain legible throughout the
lifetime of the appliance.
2.2.1 Benchmark Commissioning Checklist
1. Please ensure that the installer has fully completed the
Benchmark Checklist on the inside back pages of the installation
instructions supplied with the product and that you have signed it
to say that you have received a full and clear explanation of its
operation. The installer is legally required to complete a
commissioning checklist as a means of complying with the
appropriate Building Regulations (England and Wales).
2. All installations must be notified, by the installer, to Local Area
Building Control either directly or through a Competent Persons
Scheme. A Building Regulations Compliance Certificate will then
be issued to the customer who should, on receipt, write the
Notification Number on the Benchmark Checklist.
3. This product should be serviced annually to optimise its
safety, efficiency and performance. The service engineer should
complete the relevant section of the Benchmark Service Record
in the Installation & Service manual after each service.
4. The completed Benchmark Checklist & proof of annual
servicing (where applicable) will be required in the event of any
warranty work.
See Section 12 for warranty information.
MainEco Heat