16 | Unit installationInstaller and user reference guide51FXUA50~100AVEBVRV system air conditioner4P673843-1 – 2022.01≥1000A: ≥30d eB: ≥2500(mm)A: ≥1500fcbaA Minimum distance to the wallB Minimum and maximum distance to the floora Air outletb Air inletc Side with closed air outlet (blocking pad kit required)d Indoor unite Obstaclesf Floor▪ A: Minimum distance to the wall. Depends on the airflow directions towards thewall.- Minimum: 1.5 m in case of an open air outlet. In case of a closed air outlet, aminimum distance of 30 mm is required.▪ B: Minimum and maximum distance to the floor:- Minimum: 2.5 m to avoid accidental touching.- Maximum: Depends on the capacity class. See "21.1 Field setting" [476].INFORMATIONSome options may require additional service space. Refer to the installation manualof the used option before installation.16.2 Mounting the indoor unit16.2.1 Guidelines when installing the indoor unitINFORMATIONOptional equipment. When installing optional equipment, also read the installationmanual of the optional equipment. Depending on the field conditions, it might beeasier to install the optional equipment first.▪ Ceiling strength. Check whether the ceiling is strong enough to support theweight of the unit. If there is a risk, reinforce the ceiling before installing the unit.- For existing ceilings, use anchors.- For new ceilings, use sunken inserts, sunken anchors or other field suppliedparts.50~100cb(mm)ade