Guarantee and customer service 90020213396_00 flexoTHERM Operating instructions 15safe and satisfactory standards. Installersshould also be fully conversant with andcompetent with all necessary electrical andbuilding regulations that may apply to theinstallation.In addition all unvented domestic hot watercylinders must be installed by a compet-ent person to the prevailing building regu-lations at the time of installation (G3). Allappliances shall be fully commissioned inaccordance with our installation manualand Benchmark commissioning check list(this will be included within the installa-tion manual). These must be signed andgiven to the user for safe keeping duringthe hand over process. Installers shouldalso at this time advise the user of the an-nual servicing requirements and advise ofappropriate service agreement.Terms and conditions do apply to the guar-antee, details of which can be found on theregistration card included with this appli-ance. In order to qualify for guarantee afterone year the appliance must be servicedin accordance with our installation manualservicing instructions. The benchmark ser-vice history should be completed. Note -all costs associated with this service areexcluded from this guarantee.Failure to install and commission this ap-pliance in compliance with the manufac-turer’s instructions will invalidate the guar-antee (this does not affect the customer’sstatutory rights).9.2 Customer serviceApplicability: Great BritainTo ensure efficient and reliable operationof your boiler it is recommended that regu-lar servicing is carried out by your serviceprovider:Vaillant Applied System SalesVaillant Ltd.Nottingham RoadBelperDerbyshire DE56 1JTUnited KingdomVaillantTraining: 845 601 88 85E-mail: commercial@vaillant.co.ukCommercial service assistance:870 850 30 72 (Mon-Fri 8:30am – 5:30pm)Technical advice: 844 693 31 33 (Mon-Fri8:30am – 5:30pm, Sat 9:00am - 4:00pm)E-mail: technical@vaillant.co.uk