Baxi MainEco Combi 24 Bedienungsanleitung

United Kingdom

Combi 24-28-35 / System 18-24

User Manual

Wall Mounted Gas Condensing Boiler

Baxi MainEco Combi and System

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.

Contents

1 Introduction ................................................................................................4

1.1 Symbols used .......................................................4

1.2 Abbreviations ........................................................4

1.3 General ..................................................................5

1.3.1 Manufacturer’s liability .............................................5

1.3.2 Installer’s liability .....................................................5

1.3.3 User’s liability ..........................................................6

1.4 Certifications .........................................................6

2Safety instructions and recommendations ..............................................7

2.1 Safety instructions ...............................................7

2.2 Recommendations ................................................8

2.2.1 Benchmark Commissioning Checklist .....................8

3Description ..................................................................................................9

3.1 Operating principle ...............................................9

3.1.1 Gas/air setting .........................................................9

3.1.2 Combustion .............................................................9

3.1.3 Heating and domestic hot water production ............9

3.2 Main parts ............................................................10

3.3 Clearances around the boiler ............................10

3.4 Control system ....................................................11

3.4.1 Adjustment ............................................................11

02092014 - 7621607-02 1

3.5 Control panel .......................................................11

4 Operating the boiler .................................................................................12

4.1 Commissioning the boiler ..................................12

4.2 Reading the various current values ..................12

4.3 Installation shutdown .........................................13

4.4 Antifreeze protection ..........................................13

5 Checking and maintenance .....................................................................14

5.1 General instructions ...........................................14

5.2 Periodic checks ..................................................14

5.3 Filling the system ...............................................15

5.4 Bleeding the heating system .............................16

5.5 Draining the installation .....................................17

6 Troubleshooting .......................................................................................18

6.1 Error codes ..........................................................18

6.2 Incidents and solutions ......................................20

7 Technical specifications ..........................................................................21

7.1 Technical specifications ....................................21

8 Energy savings .........................................................................................22

8.1 Energy-saving advice .........................................22

8.2 Room thermostat and settings ..........................22

9 Warranty ....................................................................................................23

9.1 General ................................................................23

9.2 Warranty terms ...................................................23

9.2.1 Warranty registration, service & repair ..................23

9.2.2 Benchmark Commissioning Checklist ...................23

9.2.3 Ways to register your warranty .............................23

9.2.4 Annual service .......................................................24

10 Appendix ...................................................................................................25

10.1 User instruction card ..........................................25

Contents

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02092014 - 7621607-02 3

1 Introduction

1.1 Symbols used

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, highlight

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.

¼Signals a referral to other instructions or other pages

in the instructions.

1.2 Abbreviations

4LTH: Low temperature heating

4DHW: Domestic hot water

4HRU: Heat Recovery Unit

4PCU: Primary Control Unit - Electronic system to

control burner function

4SCU: Secondary Control Unit - Additional electronic

system

1. Introduction Baxi MainEco Combi and System 24 - 28 - 35 / 18 -24

402092014 - 7621607-02

1.3 General

1.3.1. Manufacturer’s liability

Our products are manufactured in compliance with the

requirements of the various applicable European

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.

Our liability as the manufacturer may not be invoked in the

following cases:

4Failure to abide by the instructions on using the

appliance.

4Faulty or insufficient maintenance of the appliance.

4Failure to abide by the instructions on installing the

appliance.

1.3.2. Installer’s liability

The installer is responsible for the installation and

commissioning of the appliance. The installer must

respect the following instructions:

4Read and follow the instructions given in the manuals

provided with the appliance.

4Carry out installation in compliance with the prevailing

legislation and standards.

4Perform the initial start up and carry out any checks

necessary.

4Explain the installation to the user.

4If a maintenance is necessary, warn the user of the

obligation to check the appliance and maintain it in

good working order.

4Give all the instruction manuals to the user.

Baxi MainEco Combi and System 24 - 28 - 35 / 18 -24 1. Introduction

02092014 - 7621607-02 5

1.3.3. User’s liability

To guarantee optimum operation of the appliance, the

user must respect the following instructions:

4Read and follow the instructions given in the manuals

provided with the appliance.

4Call on qualified professionals to carry out installation

and initial start up.

4Get your installer to explain your installation to you.

4Ensure the Appliance is serviced in accordance with

the manufacturer’s instructions by a suitable qualified

person.

4Keep the instruction manuals in good condition close

to the appliance.

This appliance is not intended to be used by persons

(including children) whose physcial, sensory or mental

capacity is impaired or persons with no experience or

knowledge, unless they have the benefit, through the

intermediary of a person responsible for their safety, of

supervision or prior instructions regarding use of the

appliance. Care should be taken to ensure that children

do not play with the appliance.

If the mains power lead is damaged it must be replaced

by the original manufacturer, the manufacturer’s dealer or

another competent person to prevent hazardous

situations.

1.4 Certifications

CE identification no PIN 0063CM3019

NOx classification 5 (Standards EN)

Type of connection (Flue gas outlet) C13, C33, C53

Gas Council number MainEco Combi 24: 47–075–93

MainEco Combi 28: 47–075–94

MainEco Combi 35: 47–075–95

MainEco System 18: 41–470–13

MainEco System 24: 41–470–14

1. Introduction Baxi MainEco Combi and System 24 - 28 - 35 / 18 -24

602092014 - 7621607-02

2 Safety instructions and

recommendations

2.1 Safety instructions

DANGER

If you smell gas:

1. Do not use a naked flame, do not smoke, do not

operate electrical contacts or switches ( doorbell,

light, motor, lift, etc..).

2. Shut off the gas supply.

3. Open the windows.

4. Evacuate the premises.

5. Call your fitter.

DANGER

If you smell flue gases:

1. Switch the appliance off.

2. Open the windows.

3. Evacuate the premises.

4. Call your fitter.

WARNING

Depending on the settings of the appliance:

4The temperature of the flue gas conduits may exceed

60°C.

4The temperature of the radiators may reach 85°C.

4The temperature of the domestic hot water may reach

65°C.

CAUTION

Do not neglect to service the appliance:

4For completely safe and optimum operation, you

must have your boiler regularly serviced by an

approved installer.

Baxi MainEco Combi and System 24 - 28 - 35 / 18 -24 2. Safety instructions and recommendations

02092014 - 7621607-02 7

2.2 Recommendations

WARNING

Only qualified professionals are authorised to work on the

appliance and the installation.

4Regularly check the water pressure in the installation (minimum

pressure 0.8 bar, recommended pressure between 1 and 2 bar).

4Keep the appliance accessible at all times.

4Never remove or cover labels and rating plates affixed to the

appliance. Labels and rating plates must be legible throughout the

entire lifetime of the appliance.

4The appliance should be on Summer or Antrifreeze mode rather

than switched off to guarantee the following functions:

-Anti blocking of pumps

-Antifreeze protection

2.2.1. Benchmark Commissioning Checklist

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).

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.

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.

The completed Benchmark Checklist & proof of annual servicing

(where applicable) will be required in the event of any warranty work.

2. Safety instructions and recommendations Baxi MainEco Combi and System 24 - 28 - 35 / 18 -24

802092014 - 7621607-02

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