Guarantee and customer service 90020151761_00 aroTHERM Instructions for use 25Gas Safety (Installation and Use) Regulations 1998, and themanufacturer’s instructions. In the UK competent personsapproved at the time by the Health and Safety Executiveundertake the work in compliance with safe and satisfactorystandards. Installers should also be fully conversant withand competent with all necessary electrical and buildingregulations that may apply to the installation.In addition all unvented domestic hot water cylinders mustbe installed by a competent person to the prevailing build-ing regulations at the time of installation (G3). All appliancesshall be fully commissioned in accordance with our installa-tion manual and Benchmark commissioning check list (thiswill be included within the installation manual). These mustbe signed and given to the user for safe keeping during thehand over process. Installers should also at this time advisethe user of the annual servicing requirements and advise ofappropriate service agreement.Terms and conditions do apply to the guarantee, details ofwhich can be found on the registration card included with thisappliance. In order to qualify for guarantee after one year theappliance must be serviced in accordance with our installa-tion manual servicing instructions. The benchmark servicehistory should be completed. Note - all costs associated withthis service are excluded from this guarantee.Failure to install and commission this appliance in compli-ance with the manufacturer’s instructions will invalidate theguarantee (this does not affect the customer’s statutoryrights).9.2 Customer serviceTo ensure efficient and reliable operation of your boiler it isrecommended that regular servicing is carried out by yourservice provider:Vaillant Applied System SalesVaillant Ltd.Nottingham RoadBelperDerbyshire DE56 1JTUnited KingdomVaillantTraining: 08 45 601 88 85E-mail: training@vaillant.co.ukVaillant After Sales Service: 08 70 850 30 72 (Mon-Fri 8:30 –17:30)Technical Help: 08 44 693 31 33 (Mon-Fri 8:30 – 17:30)Fax: 017 73 52 59 46E-mail: aftersales@vaillant.co.uk