4 PreparationInstallation and operation manual5FCAG35~140AVEBSplit system air conditioners4P471224-1 – 2017.03Outdoor units Cooling HeatingAZAS71~140 Outdoortemperature–15~46°C DB –14~21°C DB–15~15.5°C WBIndoortemperature20~37°C DB14~28°C WB10~27°C DBIndoor humidity ≤80%(a)(a) To avoid condensation and water dripping out of the unit. Ifthe temperature or the humidity is beyond these conditions,safety devices may be put in action and the air conditionermay not operate.3.2 System layoutabcde ifgha Indoor unitb Outdoor unitc User interfaced Suction aire Discharge airf Refrigerant piping + interconnection cableg Drain pipeh Earth wiringi Suction grille and air filter4 Preparation4.1 Preparing installation site4.1.1 Installation site requirements of theindoor unitINFORMATIONThe sound pressure level is less than 70 dBA.CAUTIONAppliance not accessible to the general public, install it in asecured area, protected from easy access.This unit, both indoor and outdoor, is suitable forinstallation in a commercial and light industrialenvironment.▪ Spacing. Mind the following requirements:(mm)≥1500≥2000≥4000≥1500 ABCba dacA Minimum distance to the wall (see below)B Minimum and maximum distance to the floor (see below)C 35~71 class:≥214 mm: In case of installation with standard panel≥294 mm: In case of installation with self-cleaning panel≥263 mm: In case of installation with fresh air intake kit100~140 class:≥256mm: In case of installation with standard panel≥306mm: In case of installation with fresh air intake kit≥316mm: In case of installation with self-cleaning panela Indoor unitb Lighting (the figure shows ceiling-mounted lighting, butrecessed lighting is also allowed)c Air fand Static volume (example: table)▪ A: Minimum distance to the wall. Depends on the air flowdirections towards the wall.≥1500 ≥500 ≥200aA A Ab ca Air outlet and corners openb Air outlet closed, corners open (optional blocking pad kitrequired)c Air outlet and corners closed (optional blocking pad kitrequired)▪ B: Minimum and maximum distance to the floor:▪ Minimum: 2.5 m to avoid accidental touching.▪ Maximum: Depends on the air flow directions and the capacityclass. Also make sure the "Ceiling height" field settingcorresponds with the actual situation. See Field settings.If air flow direction… Then BFCAG35~71 FCAG100~140All-round ≤3.5 m ≤4.2 m4-way(a) ≤4.0 m ≤4.5 m3-way(a) ≤3.5 m ≤4.2 m(a) Optional blocking kit required5 Installation5.1 Mounting the indoor unit5.1.1 Guidelines when installing the indoor unitINFORMATIONOptional equipment. When installing optional equipment,also read the installation manual of the optional equipment.Depending on the field conditions, it might be easier toinstall the optional equipment first.▪ In case of installation with a fresh air intake kit. Install thefresh air intake kit always before installing the unit.▪ Decoration panel. Install the decoration panel always afterinstalling the unit.