61. GENERALThis booklet briefly outlines where and how to install theair conditioning system. Please read over the entire set ofinstructions for the indoor units and make sure all accessoryparts listed are with the indoor units before beginning.1-1. Tools Required for Installation (not supplied)1. Flathead screwdriver2. Phillips head screwdriver3. Knife or wire stripper4. Tape measure5. Carpenter’s level6. Sabre saw or keyhole saw7. Hacksaw8. Core bits9. Hammer10. Drill11. Tube cutter12. Tube flaring tool13. Torque wrench14. Adjustable wrench15. Reamer (for deburring)1-2. Accessories Supplied with UnitNo. Accessories part Qty.1 Installation plate 12 Installation plate fixing screw 53 Installation Instruction 11-3. Type of Copper Tube and Insulation MaterialIf you wish to purchase these materials separately from a localsource, you will need:1. Deoxidized annealed copper tube for refrigerant tubing.Cut each tube to the appropriate lengths +30 cm to 40 cmto dampen vibration between units.2. Foamed polyethylene insulation for copper tubes asrequired to precise length of tubing. Wall thickness of theinsulation should be not less than 8 mm.3. Use insulated copper wire for field wiring. Wire size varieswith the total length of wiring.Refer to 4. ELECTRICAL WIRING for details.CAUTIONCheck local electrical codes and regulations beforeobtaining wire. Also, check any specified instructions orlimitations.1-4. Additional Materials Required for Installation1. Refrigeration (armored) tape2. Insulated staples or clamps for connecting wire (See yourlocal codes.)3. Putty4. Refrigeration tubing lubricant5. Clamps or saddles to secure refrigerant tubing6. Scale for weighing2. SELECTING THE INSTALLATION SITE2-1. Indoor UnitAVOID:● areas where leakage of flammable gas may be expected.● places where large amounts of oil mist exist.● direct sunlight.● locations near heat sources which may affect theperformance of the unit.● locations where external air may enter the room directly.This may cause “condensation” on the air discharge ports,causing them to spray or drip water.● locations where the remote controller will be splashed withwater or affected by dampness or humidity.● installing the remote controller behind curtains or furniture.● locations where high-frequency emissions are generated.DO:● select an appropriate position from which every corner of theroom can be uniformly cooled.● select a location where the ceiling is strong enough tosupport the weight of the unit.WARNING● select a location which can support a load that is four timesthe indoor unit weight.● select a location where tubing and drain pipe have theshortest run to the outdoor unit.● allow room for operation and maintenance as well asunrestricted air flow around the unit.● install the unit within the maximum elevation differenceabove or below the outdoor unit and within a total tubinglength (L) from the outdoor unit as detailed in the installationinstructions packed with the outdoor unit.● allow room for mounting the remote controller about 1 m offthe floor, in an area that is not in direct sunlight nor in theflow of cool air from the indoor unit.NOTEAir delivery will be degraded if the distance from the floor to theceiling is greater than 3 m.Wall MountedThe air inlet and outlet of the indoor unit must be free of anyobstructions to allow air to spread throughout the room.1. The indoor unit must be within a maintenance space.100 or more 50 or more(Unit: mm)65 or moreFront ViewFig. 2-1