2410. Installation Instruction10.1 Select the Best Location10.1.1 Indoor Unit• There should not be any heat source or steam nearthe unit.• There should not be any obstacles blocking the aircirculation.• A place where air circulation in the room is good.• A place where drainage can be easily done.• A place where noise prevention is taken into consideration.• Do not install the unit near the door way.• Ensure the spaces indicated by arrows from the wall, ceiling,fence or other obstacles.• Recommended installation height for indoor unit shall be atleast 2.5m.10.1.2 Outdoor Unit• If an awning is built over the unit to prevent direct sunlight orrain, be careful that heat radiation from the condenser is notobstructed.• There should not be any animal or plant which could beaffected by hot air discharged.• Keep the spaces indicated by arrows from wall, ceiling, fenceor other obstacles.• Do not place any obstacles which may cause a short circuit ofthe discharged air.• If piping length is over the rated length, additional refrigerantshould be added as shown in the table below:Example: If the unit is installed at a 10m distance, the quantity ofadditional refrigerant should be 60 g. …… (10-7) m x 20g/m = 60 gPiping sizeModelGasmm(inch)Liquidmm(inch)RatedLength(m)MaxElev-ation(m)MinPipingLength(m)MaxPipingLength(m)Additio-nalRefrigerant(g/m)Pipinglength foraddgas(m)RE9NKE 9.52(3/8”)6.35(1/4")5 5 3 15 20 7RE12NKE 9.52(3/8”)6.35(1/4”)5 5 3 15 20 7RE15NKE 12.7(1/2”)6.35(1/4”)5 5 3 15 20 711.1.3 Indoor/Outdoor Unit*This illustration is for explanation purposes only.The indoor unit will actually face a different way.