6 REFUsol 08K ... 23K REFU Elektronik GmbH1 About this Installation and Operating ManualThese operating instructions form part of the product. Read the Installation and Operating Manual carefully before installing and using the product. Keep the operating instructions readily available with the device for the entire service life of theproduct. Provide all future users of the device access to the operating instructions.1.1 Symbols and Markup Prerequisite One-step instruction1. Multiple-step instruction• Bulleted listHighlighting Highlighting within a text Result1.2 Warning Notices1.2.1 Layout of a Warning NoticeSIGNALWORD / WARNING INSTRUCTIONS CATEGORYType and source of dangerConsequences if the warning is not observed Required action to avoid the risk1.2.2 Categories of Warning NoticesDANGERLeads directly to death or serious personal injury if ignored.Follow the warnings to avoid death or serious injury!WARNINGMay result in death or serious personal injury if ignored.Follow the warnings to avoid serious injuries!CAUTIONMay cause minor personal injury if ignored.Follow the warnings to avoid injury!