NOTEThis manual contains important information with respect to the installation and set-up of the boiler.This manual must be provided to the installer, who will keep it in a safe place.We accept no liability should any damage result from the failure to comply with the instructionscontained in this technical manual.Essential recommendations for safety• It is prohibited to carry out any modifications to the appliance without themanufacturer’s prior and written agreement.• The appliance must be set up by a qualified installer, in accordance with applicablestandards and regulations.• The installation must comply with the instructions contained in the boiler'sinstallation manual and with the standards and regulations applicable toinstallations.• Failure to comply with the instructions in this manual could result in personalinjury or a risk of environmental pollution.• The manufacturer declines all liability for any damage caused as a result ofincorrect installation or in the event of the use of appliances or accessories that arenot specified by the manufacturer.Essential recommendations for the correct operation of the appliance• To guarantee the correct operation of the installation, it is essential to carry out theadjustments in accordance with the instructions in this manual.• In order to ensure that the appliance operates correctly, it is essential to inspectand service the boiler every year.• Faulty parts may only be replaced by genuine factory parts.General remark• The manufacturer reserves the right to change the technical characteristics andfeatures of its products without prior notice.en0-3ENFRNLESITDEPLRUThe Installer's Handbook - ACVMax: A1004308 - 660Y2900- Volume 0 • BIf you smell gas:- Immediately isolate the gas supply.- Open windows and doors to ventilate the area.- Do not use any electrical appliances and do not operate any switches.- Immediately notify your gas supplier and/or your installer.IMPORTANT INSTRUCTIONS - READ BEFORE PROCEEDINGEssential recommendations for safety• This document is intended to be used by a factory trained and qualified heatingcontractor or service technician only. Read all instructions within this document andwithin the concerned appliance's Installation, Operation and Maintenance Manualbefore proceeding.• It is recommended to follow the procedures in the steps given. Skipping or missingprocedural steps could result in severe personal injury, death or substantial propertydamage.• This appliance is not intended for use by persons (including children) with reducedphysical, sensory or mental capabilities, or lack of experience and knowledge, unlesssupervised or unless they have been given instruction concerning the use of theappliance by a person responsible for their safety.• Children should be supervised to ensure that they do not play with the appliance.RECOMMENDATIONSAPPLICABILITYThis manual is applicable to appliances manufactured from March 2016 and equipped with an ACVMaxcontroller running at least on software version 3.05.To know the software version of the controller installed in your appliance, look at theinformation displayed just after the ON/OFF master switch has been pushed in to turn theappliance on.• Software version 3.03 does not support the appliance coding function. Please refer tothe ACVMax System Control manual on the ACV website (ref. 660Y2800).