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  • Supplied By www.heating spares.co Tel. 0161 620 6677

    Installation and Servicing Instructions

    Gas fired condensing wall hung combination boilers

    G.C.N : 41-116-26 (18 kW)G.C.N : 41-116-22 (24 kW)G.C.N : 41-116-23 (30 kW)

    CLAS HE SYSTEM

    CLAS HE SYSTEM 18CLAS HE SYSTEM 24CLAS HE SYSTEM 30

    Country of destination GB, IE

  • Supplied By www.heating spares.co Tel. 0161 620 6677

    overview

    INDEX

    OverviewGeneral Information .................................................................................................3Advice for the Installer .............................................................................................4CE Labelling .................................................................................................................4Data Plate Symbols ...................................................................................................4Safety Regulations ....................................................................................................5

    Product descriptionControl Panel...............................................................................................................6Display ...........................................................................................................................6Overall View .................................................................................................................7Overall Dimension ....................................................................................................7Minimum Clearances ...............................................................................................7Technical Information ..............................................................................................8

    InstallationReference Standards ................................................................................................9Installing the Boiler ................................................................................................ 1Gas Connection ....................................................................................................... 13Water Connection .................................................................................................. 13Instructions for Opening the Casing and Performing anInternal Inspection ................................................................................................. 13Connecting the Flue .............................................................................................. 15Fitting the Coaxial Flue ( 60/100 Horizontal) ............................................. 16Fitting the 5 Flue ( 80/15 Horizontal / Vertical) ..................................... 17Fitting the Coaxial Flue ( 60/100 Vertical) ................................................... 18Fitting the Twin Pipe ( 80/80) .......................................................................... 19Electrical Connections .......................................................................................... 3Peripheral Unit Connection ................................................................................ 3Room Thermostat Connection .......................................................................... 4Outdoor Sensor Connection .............................................................................. 4Electrical Diagram .................................................................................................. 5Wiring diagram for connection to an open vented cylinder .................. 6Wiring diagram for connection to an MTS unvented cylinder............... 7

    CommissioningInitial Preparation ................................................................................................... 8Electricity Supply .................................................................................................... 8Filling the Heating System .................................................................................. 8Filling of the DHW System ................................................................................... 8Gas Supply ................................................................................................................ 8Water Treatment ..................................................................................................... 8First Igniton Operation ......................................................................................... 9Ignition procedure ................................................................................................. 30Test Function and Combustion Analysis ........................................................ 3AUTO Function ........................................................................................................ 33

    Boiler Protection DevicesBoiler Protection Devices .................................................................................... 34Anti-Frost Device .................................................................................................... 34Table summarising error codes ......................................................................... 34

    Settings - Adjustment - Problem Identification MenusAccessing the Menus ............................................................................................ 35

    MaintenanceGeneral Comments ................................................................................................ 43General Access ........................................................................................................ 44Electrical Unit ........................................................................................................... 45Hydraulic Unit .......................................................................................................... 47Main Heat Exchanger ............................................................................................ 5Burner Unit ............................................................................................................... 53Fan Unit ...................................................................................................................... 56Gas Valve .................................................................................................................... 57Annual Maintenance ............................................................................................. 58Benchmark Commissioning Checklist ............................................................ 59Benchmark Service Interval Record ................................................................. 60Spare Parts Short List ............................................................................................ 61

  • Supplied By www.heating spares.co Tel. 0161 620 6677

    3

    overview

    These instructions are suitable for CLAS HE SYSTEM boilers :Do not forget the Log Book!The Benchmark SchemeBenchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are provided with the correct equipment for their needs, that it is installed, commissioned and serviced in accordance with the manufacturers instructions by competent persons and that it meets the requirements of the appropriate Building Regulations. The Benchmark Checklist can be used to demonstrate compliance with Building Regulations and should be provided to the customer for future reference.

    Installers are required to carry out installation, commissioning and servicing work in accordance with the Benchmark Code of Practice which is available from the Heating and Hotwater Industry Council who manage and promote the Scheme. Visit www.centralheating.co.uk for more information.

    To The InstallerAs part of the commissioning of this appliance it is vital that the Log Book is completed and given to the Householder. Please ensure that your customer is aware of the importance of keeping the Log Book safe as a record of the installation and the appliance service history.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 CAREMTS, 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 MTS Technical and Customer Service Departments at High Wycombe.TECHNICAL DEPARTMENT CUSTOMER SERVICE DEPARTMENTTel: 0870 41 8180 Tel: 0870 600 9888Fax: 01494 459775 Fax: 01494 459775GUARANTEEThe manufacturers guarantee is for 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.CAUTIONIn 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 Buidling 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 should be recorded in your boiler Log Book. You can check your installer is CORGI registered by call

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