1811 Installation Instruction11.1. Select The Best LocationINDOOR UNIT• Do not install the unit in excessive oil fume area such askitchen, workshop and etc.• There should not be any heat source or steam near the 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 2.5 m.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,fence or other obstacles.• Do not place any obstacles which may cause a short circuitof the discharged air.• If piping length is over 7.5 m, additional refrigerant should beadded as shown in the table.Example: For PW24If the unit is installed at 10 m distance, the quantity of additionalrefrigerant should be 75g ...... (10-7.5)m x 30 g/m = 75 g11.2. Indoor/Outdoor UnitInstallation DiagramModelPiping size RatedLength(m)Max.Elevation(m)Min.PipingLength(m)Max.PipingLength(m)AdditionalRefrigerant(g/m)Gas LiquidPW18 1/2” 1/4” 5 20 3 25 20PW24 5/8” 1/4” 5 20 3 25 30