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Installation and Maintenance
1. Safety notice
WARNING
•
Install the air conditioner on a solid base that can support the unit weight. (An inadequate base or
incomplete installation may cause injury due to falling of the base.)
•
Electrical work should be carried out in accordance with the installation manual and the local and
national electrical wiring rules or code.
(Insufficient capacity or incomplete electrical work may cause electrical shock or fire.)
•
Be sure to use a dedicated power circuit. (Never use the power supply shared by another appliance.)
•
For wiring, use a cable long enough for the entire distance, and do not use an extension cord.
•
Do not put other loads on the power supply, and please use a dedicated power circuit.
•
Use the specified types of wires for electrical connections between the indoor and outdoor units.
(Firmly clamp the interconnecting wires so that the terminals receive no external stress.)
•
Incomplete connections or clamping may cause terminal overheating or fire.
•
After establishing connection between all the wires, fix the cables to prevent undue force on the
electrical covers or panels. (Install covers over the wires, incomplete cover installation may cause
terminal overheating. electrical shock or fire.)
•
When installing or relocating the system, be sure to keep the refrigerant circuit free from air (Air in the
refrigerant circuit may cause an abnormal pressure rise or rupture, resulting in injury.)
•
If any refrigerant leakage occurs during the installation work, ventilate the room.
•
After all installations are completed, make sure that no refrigerant leaks. (The refrigerant produces,
toxic gas if exposed to flames.)
•
When carrying out piping connection, do not let air substances other than the specified refrigerant get
into refrigeration cycle. (Otherwise, it will cause decreased performance, abnormal high pressure in the
refrigeration cycle, explosion and injury.)
•
Make sure that the installation has a proper earth connection. Do not ground the unit to a utility pipe,
arrester, or telephone grounding. Incomplete grounding may cause electrical shock. (A high surge
current from lightning or other sources may cause damage to the air conditioner.)
•
An earth leakage circuit breaker may be required depending on the site condition to prevent electrical
shock.
•
Disconnect the power supply before wiring, piping, or checking the unit.
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