2 About the boxInstallation and operation manual4FCAHG71~140FVEBSplit system air conditioners4P429472-1 – 2015.12▪ Wiring instruction sheet▪ Instructions on how to connect the optional sensor kit anddecoration panels▪ Format: Paper (in the box of the indoor unit)Latest revisions of the supplied documentation may be available onthe regional Daikin website or via your dealer.The original documentation is written in English. All other languagesare translations.For the installer2 About the box2.1 Indoor unit2.1.1 To remove the accessories from theindoor unit8× 4×1×1× 1×a4×1×1×1×1×7×1×e fdcbh jig1×k1×l m ona Paper pattern for installation (upper part of packing)b General safety precautionsc Indoor unit installation and operation manuald Installation guidee Washers for hanger bracketsf Screws (to temporarily attach the paper pattern forinstallation to the indoor unit)g Cable tiesh Metal clampi Insulation piece (drain pipe)j Sealing pads: Large (drain pipe), medium 1 (gas pipe),medium 2 (liquid pipe), small (electrical wiring)k Drain hosel Insulation piece: Small (liquid pipe)m Insulation piece: Large (gas pipe)n Wiring instruction sheet (for the connection of the optionalsensor kit and decoration panels)o Wire harness for the self‑cleaning decoration panel3 About the units and options3.1 About the indoor unitUse the system in the following temperature and humidity ranges forsafe and effective operation.Cooling HeatingOutdoortemperature–15~50°C DB –19~21°C DB–20~15.5°C WBIndoortemperature18~35°C DB12~28°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 layoutNOTICEDesign of the system must not be done at temperaturesbelow –15°C.f gbhiad eca 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: