31. Safety Precautions Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing. Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug andmain circuit for the model installed. The caution items stated here must be followed because these important contents are related to safety. The meaning of eachindication used is as below. Incorrect installation or servicing due to ignoring of the instruction will cause harm or damage,and the seriousness is classified by the following indications.WARNING This indication shows the possibility of causing death or serious injury.CAUTION This indication shows the possibility of causing injury or damage to properties. The items to be followed are classified by the symbols:This symbol denotes item that is PROHIBITTED from doing. Explanation of symbols displayed on the indoor unit or outdoor unit.WARNING This symbol shows that this equipment uses a flammable refrigerant.If the refrigerant is leaked, together with an external ignition source, there is a possibility of ignition.CAUTION This symbol shows that the Operation Instructions should be read carefully.CAUTION This symbol shows that a service personnel should be handling this equipment with reference to theInstallation Instructions.CAUTION This symbol shows that there is information included in the Operation Instructions and/or Installation Instructions. Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation, care andmaintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.WARNING1. Do not modify the machine, part, material during repairing service.2. If wiring unit is supplied as repairing part, do not repair or connect the wire even only partial wire break. Exchange the whole wiring unit.3. Do not wrench the fasten terminal. Pull it out or insert it straightly.4. Engage authorized dealer or specialist for installation and servicing. If installation or servicing done by the user is defective, it will causewater leakage, electrical shock or fire.5. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire.6.The appliance shall be stored in a well ventilated room with floor area larger than 2.06 m 2 and without any continuously operating ignitionsources.Keep away from open flames, any operating gas appliances or any operating electric heater. Else, it may explode and cause injury ordeath.7.The appliance shall be installed, and/or operated in a room with floor area larger than 2.06 m 2 and keep away from ignition sources, suchas heat/sparks/open flame, or, hazardous areas, such as gas appliances, gas cooking, reticulated gas supply systems, or electric cookingappliances, etc.8. Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water leakage,fire or electrical shock.9. Install at a strong and firm location which is able to withstand the set's weight. If the strength is not enough or installation is not properlydone, the set will drop and cause injury.10. For electrical work, follow the local national wiring standard, regulation and the installation instruction. An independent circuit and singleoutlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire.11.This equipment is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or Residual Current Device (RCD),with sensitivity of 30mA at 0.1 sec or less. Otherwise, it may cause electrical shock and fire in case equipment breakdown or insulationbreakdown.12.Do not use joint cable for indoor/outdoor connection cable. Use the specified indoor/outdoor connection cable, refer to installationinstruction CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor/outdoor connection. Clamp the cable so that noexternal force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat up or fire at the connection.13. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it willcause heat-up or fire at connection point of terminal, fire or electrical shock.14. Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may happen.