Baxi Neta-tec Combi GA Range Mode d’emploi

Please keep these instructions in a safe place.

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

Neta-tecCombiGARange

Gas Fired Wall Mounted Condensing

Combination Boiler

User’s Operating Instructions &

Important Warranty Information

2© Baxi Heating UK Ltd 2012

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

1.0 Quick Reference Guide 3

2.0 Troubleshooting 4

3.0 Temperature Adjustment &

Care of the Boiler 6

4.0 Repressurising System & ‘Service Due’ 7

5.0 Clearances 8

6.0 Error Codes 9

7.0 Legislation 10

8.0 Emergency 11

9.0 Warranty & Service Back page

Section Page

Contents

Boiler Controls - see opposite page for

Operating Quick Reference Guide

(Fascia Cover removed for clarity)

0086

ISO 9001

FM 00866

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 the Heating and Hotwater Industry

Council. For more information visit www.centralheating.co.uk

Model Range

Baxi Neta-tec Combi 24 GA

G.C.No 47-075-51

Baxi Neta-tec Combi 28 GA

G.C.No 47-075-52

Baxi Neta-tec Combi 33 GA

G.C.No47-075-53

1.0 Quick Reference Guide

Domestic Hot Water and Central Heating OFF (frost

protection still enabled)

Indicates errors that prevent burner from starting

Error - Not resettable by user

Water pressure too low

Indicates a resettable error

Indicates navigation in programming mode (parameter)

Indicates navigation in programming mode

Generic error

Burner lit

DHW request

Heating mode

Units for temperature

Units for pressure

Service due

Display Description

Central Heating

Temperature Adjustment

Boiler Information View Standby - Reset - Esc

Standby - Reset - Esc

Boiler Information View

Increase Central Heating Temperature Button

Decrease Central Heating Temperature Button

Increase Domestic Hot Water Temperature Button

Decrease Domestic Hot Water Temperature Button

Summer / Winter / Only Heating Mode Button

Key to Controls

Display showing all available segment

Summer - Winter - Only Heating

Mode

Domestic Hot Water

Temperature Adjustment

Summer - Domestic Hot Water only

request mode

Winter - Domestic Hot Water & Central

Heating request mode

Only Heating - Only Central Heating

request mode

NOTE: When altering any settings it is necessary that

the buttons are FIRMLY pressed for several seconds.

2.0 Troubleshooting

4© Baxi Heating UK Ltd 2012

Boiler not working

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 there electricity to the

boiler ? Is the display lit ?

Check electrical supply to

boiler is switched on.

YES Is the Burner Flame

symbol showing ?

Burner Flame

(Indicates burner

is on)

Boiler operating

satisfactorily.

YES

YES Is the E and R symbol

illuminated or flashing ?

YES

Press the Reset Button

Error

Symbol

If it does

not reset

CONTACT YOUR

INSTALLER OR

SERVICE

ENGINEER.

Reset

Symbol

Is the Spanner symbol

illuminated or flashing ?

YES

Spanner

Symbol

Boiler

Temperature

Central Heating

Error Code

Flame

Failure

Reset Button

2.0 Troubleshooting

Is the Timer ON and

calling for heat ?

Is the Room Thermostat (if

fitted) set high enough ?

Typical

examples of

external timer

Ensure timer is set for Central

Heating ON (see any

instructions supplied with timer)

YES YES

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

CH ON CH OFF

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 4.1.

Error Code 118 showing low

pressure.

YES

*To display the water pressure

press 6 times. ‘05’ will alternate

with the system pressure.

(NOTE: When the pump is running

the gauge under the boiler may

show a slightly differnt reading to

the display)

3.0 Temperature Adjustement &

Care of the Boiler

6© Baxi Heating UK Ltd 2012

3.1 To increase or decrease the boiler temperature

1. Press to increase the Central Heating temperature.

2. Press to decrease the Central Heating temperature.

NOTE: An overheat thermostat (NTC) is positioned in the

heat exchanger which shuts down the appliance if the boiler

temperature exceeds 100°C. Press button to re-

establish normal operating conditions.

3.2 To increase or decrease the domestic hot water

temperature

1. Press to increase the Domestic Hot Water

temperature.

2. Press to decrease the Domestic Hot Water

temperature.

3.3 Summer - Winter - Only Heating Mode

1. Press button until the required mode appears:-

2. See 3.1 or 3.2 to set the required temperature.

3.4 Cleaning the Outer Case

The painted panels should be wiped with a damp cloth and then

dried completely. DO NOT USE ABRASIVE CLEANING

AGENTS.

3.5 Boiler Frost Protection

1. The boiler incorporates an integral frost protection feature

that will operate in both Central Heating & Domestic Hot

Water modes, and also when in standby ( displayed).

2. If the boiler temperature falls below 5° C, then the boiler will

operate until the water temperature has been raised.

3. Further protection may be required for the system. Consult

your installer for details.

3.6 Information Display

1. The table opposite shows information that can be displayed

by pressing the button.

2. Press to return to the normal display.

Central Heating

Temperature Adjustment

Display Screen

Domestic Hot Water

Temperature Adjustment

Summer - Domestic Hot Water only

request mode

Winter - Domestic Hot Water & Central

Heating request mode

Only Heating - Only Central Heating

request mode

Summer - Winter - Only Heating

Mode

The button can be pressed so that the display shows the following

information:-

1 press - ‘00’ alternates with Sub-Code (only when fault on boiler) or ‘000’

2 presses - ‘01’ alternates with CH Flow Temperature

3 presses - ‘02’ alternates with Outside Temperature (where Sensor fitted)

4 presses - ‘03’ alternates with DHW Temperature

5 presses - ‘04’ alternates with DHW Temperature

6 presses - ‘05’ alternates with System Water Pressure

7 presses - ‘06’ alternates with CH Return Temperature

8 presses - ‘07’ alternates with Flue Temperature

9 presses - ‘08’ alternates with Heat Exchanger Temperature

4.0 Repressuring System & ‘Service Due’

bar

4.1 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

(E117 displayed). Contact your installer.

2. It may be necessary to repressurise the system

occasionally (as Fig. 2 or E118 displayed). 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 supplied 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. The system pressure is shown at all times on the

gauge under the boiler and can be viewed on the display

when there is power to the boiler.

8. To display the water pressure press 6 times. ‘05’

will alternate with the system pressure. (NOTE: When

the pump is running the gauge under the boiler may

show a slightly different reading to the display).

9. When the needle on the gauge or figures on the

display indicate 1 or more turn both taps off.

10. 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.

4.2 ‘Service Due’ Message

1. After 11 months operation the ‘Service Due’ message will

be shown on the boiler display.

2. Please contact your Installer, Annual Service Provider or

‘heateam’ - The Service Division of Baxi to arrange your

Annual Service. You can contact ‘heateam’ on telephone

number 0844 871 1545 or visit www.heateam.co.uk

Normal Pressure

Requires

Repressurising

Pressure Gauge

Front and Side Panel

removed for clarity

View Under

Appliance

‘Service Due’

Message

‘Sd’ will show for

three seconds,

alternating with the

boiler temperature.

Fig. 1

Fig. 2

5.0 Clearances

8© Baxi Heating UK Ltd 2012

5.1 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 - 175mm

Bottom - 150mm*

Left side - 5mm

Right Side - 5mm

Front - 5mm (In Operation)

- 450mm (For Servicing)

*This is MINIMUM recommended dimension. Greater

clearance will aid installation and maintenance.

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

150mm* Min

700mm

390mm 5mm Min

5mm Min

5mm

450mm

For Servicing

Purposes

Fig. 3

Fig. 4 In Operation

At least

1.5°

300mm

(290mm with flap removed)

175mm Min

(300mm Min if using

80/125 flue system)

6.0 Error Codes

6.1 List of Error Codes

1. The display shows two types of signals: and .

In both cases the display shows symbol and the numeric

value of the error (see the “error table” below).

2. The spanner cannot be reset by the user. Please

contact your Installer, Annual Service Provider or ‘heateam’ -

The Service Division of Baxi to arrange your Annual Service.

You can contact ‘heateam’ on telephone number 08448 711

545 or visit www.heateam.co.uk

3. Fault errors can be reset by pressing the button.

WARNING: If an error code (different from the ones

described opposite) appears on the display or a certain fault

appears frequently, contact ‘heateam’.

Gas Valve Connection Cable

Gas Valve Fault

Central Heating NTC Fault

Flue NTC Fault

Central Heating Return NTC Fault

Calibration Required

Pre-circulation Fault

Safety Thermostat Operated

Primary System Water Pressure Too High

Primary System Water Pressure Too Low

Circulation Fault (Primary)

Flame Failure

Flue NTC Operated

Interruption Of Gas Supply or Flame Failure

Elapsed Time - Gas Valve Open Without Gas

Interruption Of Gas Supply (Internal Error)

Flow/Return Sensor Temperature Test

Fan or Fan Wiring Fault

Circulation Fault (Dry Fire)

Hot Water NTC Fault

False Flame

109

110

117

118

125

128

130

133

134

135

154

160

270

321

384

Table Of Error Codes

10 © Baxi Heating UK Ltd 2012

7.0 Legislation

7.1 Installation, Commissioning, Service & Repair

1. This appliance must be installed 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 Gas

Safe 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”.

Lifting - This product should be lifted and handled by two

people. Stooping should be avoided and protective equipment

worn where necessary. Carrying & lifting equipment should be

used as required, e.g. when installing in a loft space.

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

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 Body 0086.

Ref: 86-BL-647

For GB/IE only.

7.2 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 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 regularly to optimise its

safety, efficiency and performance. The service engineer should

complete the relevant Service Record on the Benchmark

Checklist after each service.

4. The completed Benchmark Checklist may be required in the

event of any warranty work.

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