Important Points of SafetyThe following four important points of safety and suggestions should be paid great attention:Warning: Misuse may cause fatal result such as death or serious injury etc.Attention: Misuse may cause human injury or damage of machine, in some casefatal results.: Content marked with this ì forbiddenî sign should be absolutely forbid-den, otherwise may cause damage of machine and human injury of theuser.: Content marked with this ì compulsoryî sign should be executed comp-ulsively, otherwise may cause damage of machine and human injury ofthe user.Comply with the following important points of safety.Put these important points of attention and suggestions nearby and convenient for reference in need.Hand over this instruction manual to new user if you resell this machine.Warning for installationEntrusted InstallationInstallation of the machine shouldbe entrusted to certified person ofafter service. Unauthorized install-ation may cause water leakage,electric shock or fire hazard forimproper operation.To prevent leakage of refrigerant,let certified person of after servicedo it.Leakage of refrigerant over certainconsistence may result in shortageof oxygen. Enough precautionsMUST be done to avoid oxygenshortage in case of refrigerant lea-king if the room where the air-conditioner is installed is small.The power supply must be fitted withearth line to ensure valid earthing ofthe air-conditioner. No or incompleteearthing connection may cause therisk of electric shock.!!!!!Test runAfter indoor units are installed,allcassettes hinded models should betested.when the units are confirmedto be normal,other fitments can beinstalled.!!9Warning!