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CAUTION
WARNING
WARNING
1. 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 and main circuit for the model installed.
• The caution items stated here must be followed because these important contents are related to safety. The
meaning of each indication 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.
will cause harm or damage, and the seriousness is classified by the following indications.
This indication shows the possibility of causing death or serious injury
This indication shows the possibility of causing injury or damage to properties.
• The items to be followed are classified by the symbols:
• Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation,
care and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for
future reference.
future reference.
1. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage,
electrical shock or fire.
2. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical
shock or fire.
3. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water
leakage, fire or electrical shock.
4. 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 properly done, the set will drop and cause injury.
5. Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit at veranda of high rise
building, child may climb up to outdoor unit and cross over the handrail and causing accident.
6. For electrical work, follow the local national wiring standard, regulation and this installation instruction. An independent
circuit and single outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will
cause electrical shock or fire.
cause electrical shock or fire.
7. This equipment is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or Residual
Current Device (RCD). Otherwise, it may cause electrical shock and fire in case equipment breakdown or insulation
breakdown.
breakdown.
8. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning
rod and telephone. Otherwise, it may cause electrical shock in case equipment breakdown or insulation breakdown.
9. Do not use joint cable for indoor/outdoor connection cable. Use the specified Indoor/Outdoor connection cable, refer
to installation instructions CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor / outdoor
connection. Clamp the cable so that no external force will be acted on the terminal. If connection or fixing is not
perfect, it will cause heat up or fire at the connection.
connection. Clamp the cable so that no external force will be acted on the terminal. If connection or fixing is not
perfect, it will cause heat up or fire at the connection.
10. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed
perfectly, it will cause fire or electrical shock.
11. When install or relocate air conditioner, do not let any substance other than the specified refrigerant, eg. air etc. mix
into refrigeration cycle (piping) . Mixing of air etc. will cause abnormal high pressure in refrigerant cycle and result in
explosion, injury etc.
explosion, injury etc.
12. Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single
outlet with other appliances. Poor contact, poor insulation or over current will cause electrical shock or fire.
outlet with other appliances. Poor contact, poor insulation or over current will cause electrical shock or fire.
13. For R410A models, when connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same
may cause abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use
only R410A materials.
only R410A materials.
Thickness or copper pipes used with R410A must be more than 0.8mm. Never use copper pipes thinner than 0.8 mm.
It is desirable that the amount of residual oil is less than 40mg/10 m.
It is desirable that the amount of residual oil is less than 40mg/10 m.
14. During installation, install the refrigerant piping properly before run the compressor. Operation of compressor without
fixing refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in
refrigeration cycle and result in explosion, injury etc.
refrigeration cycle and result in explosion, injury etc.
15. During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigeration
piping while compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in
Symbol with white background denotes item that is PROHIBITED from doing.
Symbol with dark background denotes item that must be carried out.
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