COMBI A - Instruction Manual

These instructions are

These instructions are suitable for the COMBI A boilers : MTS (GB) Limited supports Benchmark, the heating industry code to ensure the correct installation, commissioning and servicing of domestic central heating systems. To The Householder Make sure that your installer completes Section 24 of this manual (page 60) . This provides a record of the commissioning of your boiler. It contains important information about your particular installation that may be required by service engineers. It will also provide contact details for the installer should you need guidance in the use of this appliance or if there are any problems. As with your car, your boiler will work more reliably and efficiently if regularly serviced. We recommend an annual service check. The service history of the appliance must be recorded in Section 25 of this manual (page 61). In the unlikely event of any problems with your boiler or system you should first contact your installer. If your installer cannot resolve the problem he should telephone our national service helpline. A charge may be made if MTS (GB) Limited is called out to resolve a non-product related fault. Your statutory rights are not affected. To The Installer As part of the commissioning of this appliance it is necessary to complete Section 24 of this manual (page 60) and give this manual to the Householder. Please ensure that your customer is aware of the importance of keeping this manual safe as a record of the installation (Section 24, page 60) and the appliance service history (Section 25, page 61). Please ensure that your customer is aware of the correct operation of the system, boiler and controls. MTS recommend the use of protective clothing, when installing and working on the appliance i.e. gloves. CUSTOMER CARE The MTS Group as a leading manufacturer of domestic and commercial water heating appliances is committed to providing high quality products and a high quality after sales service. Advice on installation or servicing can also be obtained by contacting the Ariston Technical and Customer Service Departments on: TECHNICAL DEPARTMENT CUSTOMER SERVICE DEPARTMENT Tel: 0870 241 8180 Tel: 0870 600 9888 Fax: 01494 459775 Fax: 01494 459775 GUARANTEE The manufacturer’s guarantee is for 2 years from the date of purchase. The guarantee is invalidated if the appliance is not installed in accordance with the recommendations made herein or in a manner not approved by the manufacturer. To assist us in providing you with an efficient after sales service, please return the guarantee registration card enclosed with the boiler without delay. CAUTION In the United Kingdom, installation, start-up, adjustments and maintenance, must be performed by a competent person only, in accordance with the current Gas Safety (Installation & Use) Regulations and the instructions provided. In the Republic of Ireland, the installation and initial start up of the appliance must be carried out by a Competent Person in accordance with the current edition of I.S.813 “Domestic Gas Installations”, the current Building Regulations, reference should also be made to the current ETCI rules for electrical installation. All CORGI registered installers carry a CORGI ID card, and have a registration number. Both must be recorded in your boiler Log Book. You can check your installer is CORGI registered by calling CORGI direct on:- (01256) 372300. Improper installation may cause damage or injury to individuals, animals and personal property for which the manufacturer will not be held liable. To ensure efficient and safe operation it is recommended that the boiler is serviced annually by a competent person. If it is known that a fault exists on the appliance, it must not be used until the fault has been corrected by a competent person. This instruction booklet is especially designed for appliances installed in the UK and the Republic of Ireland 2

Contents CUSTOMER CARE Page Guarantee ............................................................................................................................................................2 Statutory Requirements .......................................................................................................................................2 Contents ...............................................................................................................................................................3 INTRODUCTION ..................................................................................................................................................4 USER INSTRUCTIONS ........................................................................................................................................5 1 CONTROL PANEL...........................................................................................................................................5 2 HOW TO USE ..................................................................................................................................................6 3 MAINTENANCE ...............................................................................................................................................7 4 GUARANTEE...................................................................................................................................................7 5 PRACTICAL INFORMATION...........................................................................................................................7 6 SETTING THE TIME CLOCKS ........................................................................................................................8 6.1 SETTING THE MECHANICAL CLOCK ...................................................................................................8 6.2 SETTING THE DIGITAL CLOCK.............................................................................................................9 INSTALLERS’ INSTRUCTIONS.........................................................................................................................11 7 DESCRIPTION...............................................................................................................................................11 8 DIMENSIONS ................................................................................................................................................12 9 HYDRAULIC DATA .......................................................................................................................................13 10 INSTALLATION REQUIREMENTS................................................................................................................14 11 INSTALLING THE BOILER............................................................................................................................17 12 CONNECTING THE FLUE.............................................................................................................................19 12.1 FITTING THE COAXIAL FLUE (Ø 60 / 100 HORIZONTAL) ................................................................ 20 12.2 FITTING THE 5” FLUE (Ø 80 / 125 HORIZONTAL/VERTICAL) .......................................................... 20 12.3 FITTING THE VERTICAL FLUE (Ø 60 / 100)....................................................................................... 22 12.4 FITTING THE TWIN FLUE (Ø 80 / 80) ................................................................................................ 23 13 ELECTRICAL CONNECTIONS .................................................................................................................... 26 13.1 FITTING THE MECHANICAL AND DIGITAL TIME CLOCKS ............................................................. 28 14 COMMISSIONING AND TESTING ............................................................................................................... 29 14.1 INITIAL PREPARATION....................................................................................................................... 29 14.2 INITIAL START-UP............................................................................................................................... 29 14.3 ADJUSTING THE CO2 ......................................................................................................................... 30 14.4 GAS CONVERSION ............................................................................................................................. 30 14.5 ADJUSTING THE MAXIMUM HEATING POWER ............................................................................... 30 14.6 FITTING THE EXTERNAL SENSOR.................................................................................................... 30 14.7 EXTERNAL SENSOR SET-UP............................................................................................................. 31 14.8 SETTING THE PARALLEL SHIFT........................................................................................................ 31 14.9 COMPLETION ...................................................................................................................................... 31 14.10 OPERATIONAL CHECKS .................................................................................................................... 32 14.11 INSTRUCTING THE END USER.......................................................................................................... 32 15 FITTING THE CASING ................................................................................................................................. 33 16 SEQUENCE OF OPERATION...................................................................................................................... 34 16.1 CENTRAL HEATING MODE ................................................................................................................ 34 16.2 DOMESTIC HOT WATER MODE......................................................................................................... 35 17 ADJUSTMENTS AND SETTINGS ................................................................................................................ 36 3