Baxi Duo-tec Combi 24 HE A, Duo-tec Combi 28 HE A, Duo-tec Combi 33 HE A, Duo-tec Combi 40 HE A User's Operating Instructions & Important Warranty Information

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Duo-tec Combi HE A Range

Gas Fired Wall Mounted Condensing

Combination Boiler

Please keep these instructions in a safe place.

If you move house, please hand them over to the next occupier.

Baxi Duo-tec Combi 28HE achieved the top score

of 34 boilers tested in a recent Which? report.

User’s Operating Instructions &

Important Warranty Information

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 Ltd, The Wyvern Business Park, Stanier Way, Derby, DE21 6BF.

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.

1.0 Quick Reference Guide 3

2.0 Troubleshooting 4

3.0 Repressurising System 6

4.0 Clearances 7

5.0 Care of the Boiler 8

6.0 Legislation 9

7.0 Notes 10

8.0 Emergency 11

9.0 Warranty & Service 12

Section Page

Contents

Boiler Controls - see opposite page

for Operating Quick Reference Guide

Natural Gas

Baxi Duo-tec Combi 24 HE A

G.C.No47 075 35

Baxi Duo-tec Combi 28 HE A

G.C.No47 075 36

Baxi Duo-tec Combi 33 HE A

G.C.No47 075 37

Baxi Duo-tec Combi 40 HE A

G.C.No47 075 38

Baxi Heating UK Ltd is a

BS-EN ISO 9001 Accredited Company

The code of practice for the installation,

commissioning & servicing of central

heating systems.

“Baxi” supports

This product has an energy rating (A) on a scale of A to G.

For more information see www.boilers.org.uk. This is a certification mark.

1.0 Quick Reference Guide

bar

ON/OFF/Reset Selector Switch

Display Central Heating

Temperature Control

Domestic Hot Water Temperature Control

System Pressure Gauge

OFF Position

The boiler will not operate.

Central Heating Temperature Control

Turn the knob clockwise to increase or anticlockwise to decrease the temperature. Range 25 - 80° C.

Domestic Hot Water Temperature Control

Turn the knob clockwise to increase or anticlockwise to decrease the temperature.

Central Heating Indicator - The indicator will illuminate when the boiler is in the central heating mode.

Domestic Hot Water Indicator - The indicator will illuminate when hot water is being supplied to a tap or shower.

Burner On Indicator - The indicator will illuminate when the burner has fired and is heating your central heating or domestic hot water.

Boiler Output Temperature - In either the central heating or domestic hot water position the display will illuminate showing the current boiler temperature in degrees centigrade.

Central Heating System Pressure - The normal operating water pressure is between 1 and

2.0 bar. If the pressure exceeds 3 bar the safety pressure valve will operate and a fault is indicated. Contact your Installer.

Central Heating & Hot Water

Both Heating & Hot Water will operate.

Reset

Hold for approx 5 seconds and release.

Display

Position of

Optional Timer

2.0 Troubleshooting

START

Make sure the gas supply is turned ON and check if other gas appliances are operating (e.g. fire, cooker).

If no gas, consult your supplier.

Is the ON/OFF/Reset Select Switch in the ( ) position ?

Is the ( ) or ( ) light on and the ( ) on ?

Check electricity to the boiler is switched on.

Is the display lit ?

Display

Central Heating Indicator

Domestic Hot Water Indicator

Burner On Indicator

Boiler operating satisfactorily.

bar

Is the Central Heating System Pressure between 1 and 2.5 bar ?

If the reading falls below 1 bar repressurise the system as described in section 3.1.

Does the display show an error code e.g. E133, E110 ?

Boiler not working

YES YES

YES

Turn the ON/OFF/Reset Selector Switch to Reset.

Error Code E119 showing low pressure.

YES

If boiler does not Reset

2.0 Troubleshooting

Is the Timer ON and calling for heat ?

Ensure timer is set for Central Heating ON (see any instructions supplied with timer).

Is the Room Thermostat (if fitted) set high enough ?

Turn Room Thermostat to maximum setting (typical example shown).

If you don’t know what you need to do to

get the boiler to light, or need help with

the system and controls, contact your

installer as soon as possible.

YES

CONTACT YOUR INSTALLER OR SERVICE ENGINEER.

YES

CH ON

CH OFF

Typical examples of external timer

3.0 Repressurising System

bar

3.1 Central Heating System Pressure

1. The normal operating water pressure is between 1 and 2.5 bar (Fig. 1). If the pressure exceeds 3 bar the safety pressure valve will operate and a fault is indicated. Contact your installer.

2. It may be necessary to repressurise the system occasionally (Fig. 2). A filling device (the filling loop) will be fitted on the system. This will be on the boiler itself, or on pipework near to the boiler.

3. If you are unsure of its position, or cannot identify it, consult the installer who fitted the boiler.

4. The filling loop consists of two taps and a separate copper pipe with connection fittings.

5. Only when repressurising should the copper pipe be connected between the two taps. Ensure that the nuts on the pipe ends are tightened onto the taps.

6. Fully open one of the taps first, and then while watching the pressure gauge, carefully open the second tap.

7. When the needle on the gauge is indicating 1 or more turn both taps off.

8. Disconnect the copper pipe from the taps (a small amount of water may be present) and remove it. Keep the pipe in a safe place for future use.

Fig. 1

Fig. 2

Normal Pressure

Requires

Repressurising

4.0 Clearances

Fig. 3

Fig. 4

200mm Min

780mm

450mm

200mm Min

(300mm Min if

using 80/125mm

flueing system

5mm Min

450mm Min

For Servicing

Purposes

In Operation

5mm Min

4.1 For your Safety

1. This appliance must have been installed in accordance with the manufacturer’s instructions and the regulations in force.

2. Any modification 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.

3. Your boiler must not be operated without the casing correctly fitted.

4. Do not interfere with any sealed components on this boiler.

5. Take note of any warning labels on your boiler.

6. Your boiler should have the following minimum clearances for Safety and Maintenance (Figs. 3 & 4):-

Top - 200mm Bottom - 200mm Left side - 5mm Right Side - 5mm Front - 5mm (In Operation)

- 450mm (For Servicing)

7. If your boiler is installed in a compartment, do not use it for storage purposes. Do not obstruct any purpose provided ventilation openings.

8. Flammable materials must not be stored in close proximity to your boiler.

9. Avoid skin contact when your boiler is in operation, as some surfaces may get hot e.g. pipework.

10. Ensure that the flue terminal, outside the house, does not become damaged or obstructed, particularly by foliage.

11. It is important that the condensate drain system is not blocked, modified or damaged in any way as this would affect the operation of your boiler. Your installer should have insulated any exposed pipework.

GB - Heating Industry definition meaning England, Scotland, Wales, Northern Ireland, Isle of Man and the Channel Isles

5.0 Care of the Boiler

5.1 Cleaning the Outer case

The painted panels should be wiped with a damp cloth and then dried completely. DO NOT USE ABRASIVE

CLEANING AGENTS.

5.2 Protection & Precaution

1. The boiler incorporates an integral frost protection feature that will operate in both modes. If the boiler temperature falls below 5° C, then the boiler will operate until the water temperature has been raised.

2. If a system frost thermostat has been fitted (your installer will be able to advise you), then to operate correctly and protect your system, the gas and electricity must be left on and the appliance set in the central heating mode.

3. The boiler incorporates an integral pump protection feature which continually monitors the time since the pump last operated. To prevent seizure, the pump will operate for approximately 1 minute if it has not run in the last 24 hours.

5.3 Fault Indication

1. If a fault occurs on the boiler an error code may be shown on the facia display.

2. The codes are either two or three digit, preceded by the letter 'E'. For example, code E133 will be displayed by 'E1' alternating with '33'. E50 is shown as 'E' then '50'.

3. E20, E28, E50, E125 & E160 indicate faulty components. You should make a note of the displayed error code and contact your installer or service engineer.

4. If E110 or E130 is displayed overheat of the primary water or flue system has occurred. Turn the selector switch to the reset position and hold for at least 5 seconds. If the boiler does not relight, or the code is displayed regularly contact your installer or service engineer.

5. E119 is displayed when the primary water pressure is less than 0.5 bar. After repressurising the system the boiler should operate. Your installer will be able to advise you about the method of repressurising. See page 6 for further details.

6. E133 indicates that the gas supply has been interrupted, ignition has failed or the flame has not been detected. Ensure that the gas supply has not been turned off, and turn the selector switch to the reset position and hold for at least 5 seconds. If the boiler does not relight, or the code is displayed regularly contact your installer or service engineer.

Central Heating NTC Fault Flue NTC Fault Hot Water NTC Fault Safety Thermostat Operated Water Pressure Switch Not Operated Circulation Fault (Primary Circuit) Flue NTC Operated Interruption Of Gas Supply or Flame Failure Fan or Fan Wiring Fault

E20 E28 E50 E110 E119 E125 E130 E133 E160

Table of Error Codes

bar

Display

Then

Fig. 5

6.0 Legislation

6.1 Installation, Commissioning, Service & Repair

1. This appliance must be install in accordance with the manufacturer’s instructions and the regulations in force. Read the instructions fully before installing or using the appliance.

2. In GB, this must be carried out by a competent person as stated in the Gas Safety (Installation & Use) Regulations.

3. Definition of competence: A person who works for a CORGI registered company and holding current certificates in the relevant ACS modules, is deemed competent.

4. IN IE (Eire), this must be carried out by a competent person as stated in I.S. 813 “Domestic Gas Installations”.

All CORGI registered installers carry a CORGI identification card (see Fig. 6) and have a registration number. You can check your installer is registered by telephoning 0870 4012300 or writing to:-

1 Elmwood,

Chineham Business Park,

Crockford Lane,

Basingstoke. RG24 8WG.

or check online at www.corgi-gas-safety.com

The boiler meets the requirements of Statutory Instrument “The Boiler (Efficiency) Regulations 1993 No 3083” and is deemed to meet the requirements of Directive 92/42/EEC on the energy efficiency requirements for new hot water boilers fired with liquid or gaseous fuels:-

Type test for purpose of Regulation 5 certified by: Notified Body 0085.

Product/Production certified by: Notified Bodies 0085 & 0086.

For GB/IE only.

6.2 Benchmark Commissioning Checklist

1. Please ensure that your installer hands you the boiler Installation & Service Instructions with the “Benchmark Commissioning Checklist sections completed. The details in the Checklist will be required in the event of any warranty work. Keep the instructions in a safe place and ensure that the Service Interval Record at the back is completed at each service visit.

Registered Gas Installer

CARD SERIAL NO. 999999999

NAME:

A.N.Installer

COMPANY:

Newtown Heating

EXPIRES:

31 DECEMBER 2010

PHOTOGRAPH

To confirm validity of this card please contact

CORGI on

0870 401 2300

www.corgi-group.com

CORGI

00000

Fig. 6

CORGI Registration Card

7.0 Notes

8.0 Emergency

If you smell gas

Turn off the gas supply at the meter and call your gas supplier immediately. It is possible to isolate the boiler

and at the isolating valve (Fig. 7).

In GB, Transco operate a 24 hour emergency service and the telephone number will be listed in your telephone directory.

Faulty boiler

If it is known or suspected that a fault exists on the boiler, it must not be used until the fault has been corrected by a competent person.

Warning !

Gas Tap

Heating Flow, Heating

Return and Mains Water

Inlet Isolating Valves

Fig. 7

Fig. 8

In an Emergency

If a water or gas leak occurs or is suspected, the boiler can be isolated at the inlet valves as follows;

1. Using a suitable open ended spanner, turn the square nut on the gas tap through 90° (

/4turn) to isolate the gas

supply at the boiler (Fig. 7).

2. The water isolating valves are positioned under the boiler and can be closed by turning their taps to the right towards the wall (Fig. 8).

3. Call your Installer or Service Engineer as soon as possible.

9.0 Warranty & Service

BAXI

A Trading Division of Baxi Heating UK Ltd (3879156) A Division of Baxi Group

Brooks House, Coventry Road, Warwick. CV34 4LL After Sales Service 0844 871 1525 Technical Enquiries 0844 871 1555 Website www.baxi.co.uk e&oe

company

UK Comp No5122324 - Iss 4 - 1/08

Information Label

All descriptions and illustrations provided in this leaflet have been carefully

prepared but we reserve the right to make changes and improvements in

our products which may affect the accuracy of the information contained in

this leaflet. All goods are sold subject to our standard Conditions of Sale

which are available on request.

Serial Number

Date of Installation

Installer Details (name, address and contact number(s))

Please complete the boxes below

Standard Warranty Terms & Conditions

To activate your second year free warranty you must register your boiler with heateam the service division of Baxi Heating UK Ltd either by completing and returning the registration card or calling our telephone registration line on

0800 731 1599.

It is also a requirement of the warranty that the boiler has an annual service (every 12 months) in accordance with the installation and servicing instructions, performed by a CORGI registered engineer. If you would like heateam to carry this out please call on 0844 871 1525.

Our promise to you

If you experience a fault with your new boiler, we aim to provide a safe and high quality repair service supported by our dedicated national network of highly skilled engineers. If your installer can’t resolve the problem for you, we will do everything we can to get an engineer out to you as quickly as possible. Nothing in this warranty will affect your statutory consumer rights.

What you need to do if you experience a problem with your heating system or the operation of the boiler

You should always contact your installer first, because the cause of the fault may not be related to the boiler. If your installer confirms that the fault is with the boiler and he/she can’t repair it, our friendly customer service team is on hand to help. Simply call our service division heateam on 0844 871 1525 to book an engineer visit or for any general advice that you may need. Our contact centre is open Monday to Friday 8am - 6pm, weekends and Bank Holidays 8.30am - 2pm, excluding Christmas Day and New Years Day.

When calling heateam it would be helpful if you could have the following information to hand:-

1 Boiler serial number (see opposite). 2 Boiler make and model number. 3 Your installer name and address details. 4 Proof of purchase (if you do not have the boiler serial number).

What this warranty covers

Free of charge repair or replacement of components found to be of faulty manufacture.

Free of charge replacement of the complete unit provided always that the failure is related to a manufacturing fault that cannot be repaired or is uneconomic to repair.

What this warranty does not cover

Repairs to boilers which haven’t been installed and commissioned properly, and as set out in the installation instructions (this includes the need to flush the system effectively and add a suitable corrosion inhibitor).

Any damage caused by hard water scale deposits and/or aggressive water resulting from corrosion.

Any other defects or failures, either in the connected heating system or outside of the boiler itself.

Faults caused by inadequate supply of electricity, gas or water to the property.

Installations within commercial settings for which this boiler was not designed.

Reimbursement of any third party repair or replacement costs that we haven’t been told about or agreed with you in advance.

Compensation for consequential losses (e.g. loss of earnings, business losses, stress and inconvenience) arising from a production breakdown, including repair delays caused by factors outside our reasonable control.

After Sales Service 0844 871 1525

IT Comp No925.660.1

Baxi Duo-tec Combi 24 HE A, Duo-tec Combi 28 HE A, Duo-tec Combi 33 HE A, Duo-tec Combi 40 HE A User's Operating Instructions & Important Warranty Information

Specifications and Main Features

Frequently Asked Questions

User Manual