16 | Unit installationInstaller and user reference guide48FXUA50~100AVEBVRV system air conditioner4P673843-1 – 2022.0116 Unit installationIn this chapter16.1 Preparing the installation site ................................................................................................................................................ 4816.1.1 Installation site requirements of the indoor unit .................................................................................................. 4816.2 Mounting the indoor unit....................................................................................................................................................... 5116.2.1 Guidelines when installing the indoor unit............................................................................................................ 5116.2.2 Guidelines when installing the drain piping .......................................................................................................... 5616.1 Preparing the installation siteChoose an installation location with sufficient space for carrying the unit in and outof the site.Avoid installation in an environment with a lot of organic solvents such as ink andsiloxane.Do NOT install the unit in places often used as work place. In case of constructionworks (e.g. grinding works) where a lot of dust is created, the unit MUST becovered.WARNINGThe appliance shall be stored in a room without continuously operating ignitionsources (example: open flames, an operating gas appliance or an operating electricheater).16.1.1 Installation site requirements of the indoor unitMinimum floor area requirementsCAUTIONThe total refrigerant charge in the system cannot exceed the requirements forminimum floor area of the smallest room that is served. For minimum floor arearequirements for indoor units, see the installation and operation manual of theoutdoor unit.INFORMATIONAlso read the general installation site requirements. See the ""2 General safetyprecautions" [45]" chapter.INFORMATIONThe sound pressure level is less than 70 dBA.INFORMATIONEquipment meets the requirement for commercial and light-industrial location whenprofessionally installed and maintained.CAUTIONThis equipment is NOT intended for use in residential locations and will NOTguarantee to provide adequate protection to radio reception in such locations.