1■EnglishSafety Considerations• Read these Safety Considerations carefully to ensurecorrect installation.• This manual classifies the precautions into DANGER,WARNING and CAUTION.Be sure to follow all the precautions below: they are allimportant for ensuring safety.DANGER ����������� Indicates an imminently hazardoussituation which, if not avoided, willresult in death or serious injury.WARNING ��������� Failure to follow any of WARNINGis likely to result in such graveconsequences as death or seriousinjury.CAUTION ���������� Failure to follow any of CAUTIONmay in some cases result in graveconsequences.• After completing installation, test the unit to check forinstallation errors. Give the user adequate instructionsconcerning the use and cleaning of the unit according to theOperation Manual.DANGER• Refrigerant gas is heavier than air and replaces oxygen.A massive leak could lead to oxygen depletion, especiallyin basements, and an asphyxiation hazard could occurleading to serious injury or death.• If the refrigerant gas leaks during installation, ventilate thearea immediately.Refrigerant gas may produce a toxic gas if it comesin contact with fire such as from a fan heater, stove orcooking device.Exposure to this gas could cause severe injury or death.• After completing the installation work, check that therefrigerant gas does not leak.Refrigerant gas may produce a toxic gas if it comesin contact with fire such as from a fan heater, stove orcooking device.Exposure to this gas could cause severe injury or death.• Do not ground units to water pipes, telephone wires orlightning rods because incomplete grounding could causea severe shock hazard resulting in severe injury or death,and to gas pipes because a gas leak could result in anexplosion which could lead to severe injury or death.• Safely dispose of the packing materials.Packing materials, such as nails and other metal orwooden parts, may cause stabs or other injuries.Tear apart and throw away plastic packaging bags so thatchildren will not play with them.Children playing with plastic bags face the danger of deathby suffocation.ContentsSafety Considerations ������������������������������������ 1Accessories ����������������������������������������������������� 3Choosing an Installation Site ������������������������ 31. Indoor unit ................................................................... 32. Wireless remote controller ........................................... 3Indoor Unit Installation Drawings ����������������� 4Indoor Unit Installation ����������������������������������� 51. Installing the mounting plate ........................................ 52. Drilling a wall hole and installing wall embedded pipe ......... 63. Installing the indoor unit .............................................. 64. Wiring .......................................................................... 85. Drain piping ................................................................. 8Refrigerant Piping Work ��������������������������������� 91. Flaring the pipe end..................................................... 92. Refrigerant piping ........................................................ 9Installation Tips ����������������������������������������������� 101. Removing and installing the front panel ...................... 102. Removing and installing the front grille........................ 113. How to set the different addresses .............................. 11Trial Operation and Testing ���������������������������� 121. Trial operation and testing ........................................... 122. Test items .................................................................... 12