English16(3) Be sure to install insulation in the locations below as there is a risk that condensation build-up couldcause water leakage.• Drain piping located indoors• Drain socketRefer to Fig. 24, 25, and, after checking that water drains properly, install sealing pad (14), ensuring thatthere are no gaps, and use the sealing pad -large (10) to insulate the drain hose (1) and metal clamp (2)from above.Sealing pad (14)(accessory)Sealing pad - Large(10) (accessory)Be sure to lay thesealing pad (10)on (14).Sealing pad (14)(accessory)Do not have the clearance.Fig. 25Metalclamp (2)Large sealingpad (10)(accessory)(accessory)Turn seams upDrain hose (1)≥ 4mmFig. 248. ELECTRIC WIRING WORKWIRING INSTRUCTIONS• Electric wiring work must be conducted by electrician authorized by power companies. (Only licensedelectrician can conduct electric work and earth connections.)• All wiring must be performed by an authorized electrician.• Be sure to install the earth leakage breaker to the outdoor unit.(This installation of the earth leakage breaker is mandatory for the prevention of electric shocks and firedisasters.)• Make sure that 230V is specified wiring between the indoor and outdoor units and between indoor units.• Do not turn on the power supply (of the indoor unit) until all the installation work is completed.• Be sure to earth the air conditioner.• Do not connect the earth wire to gas pipes, plumbing pipes, lightning rods, or telephone earth wires.• Gas pipes: might cause explosions or fire if gas leaks.• Plumbing: no earth effect if hard vinyl piping is used.• Telephone earth wires or lightning rods: might cause abnormally high electric potential in the earthduring lighting storms.• For electric wiring work, refer to also “WIRING DIAGRAM” attached to the unit body.• Never connect the power supply wire to the terminal block for remote controller wire, or otherwise theentire system may be damaged.• For remote controller wiring details, refer to the installation manual attached to the remote controller.• Do not touch the printed circuit board ASSY during the wiring work. Otherwise, it may cause damage.