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WARNING
General
The appliance shall be installed in accordance with national wiring regulations. Capacity shortages of
the power circuit or an incomplete installation may cause an electric shock or fire.
Only a qualified installer (*1) or qualified service person (*1) is allowed to undertake work at heights
using a stand of 50 cm or more or to remove the intake grille of the indoor unit to undertake work.
When working at heights, use a ladder which complies with the ISO 14122 standard, and follow the
procedure in the ladder’s instructions. Also wear a helmet for use in industry as protective gear to
undertake the work.
When working at heights, put a sign in place so that no-one will approach the work location, before
proceeding with the work. Parts and other objects may fall from above, possibly injuring a person
below.
Do not touch the aluminum fin of the outdoor unit. You may injure yourself if you do so. If the fin must
be touched for some reason, first put on protective gloves and safety work clothing, and then proceed.
Do not climb onto or place objects on top of the outdoor unit. You may fall or the objects may fall off of
the outdoor unit and result in injury.
When transporting the air conditioner, wear shoes with additional protective toe caps.
When transporting the air conditioner, do not take hold of the bands around the packing carton.
You may injure yourself if the bands should break.
When transporting the air conditioner, use a forklift and when moving the air conditioner by hand,move
the unit with 4 people.
Do not customize the product. Doing so may result in electric shock or other failure.
This air conditioner has passed the pressure test as specified in IEC 60335-2-40 Annex EE.
Check earth
wires.
Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the
main unit, otherwise an electric shock is caused when a leak occurs.If the earth wire is not correctly
connected, contact an electric engineer for rework.
After completing the repair or relocation work, check that the ground wires are connected properly.
Be sure to connect earth wire. (Grounding work) Incomplete grounding causes an electric shock.
Do not connect ground wires to gas pipes, water pipes, and lightning rods or ground wires for
telephone wires.
Prohibition of
modification.
Do not modify the products.Do not also disassemble or modify the parts. It may cause a fire, electric
shock or injury.
Use specified
parts.
When any of the electrical parts are to be replaced, ensure that the replacement parts satisfy the
specifications given in the Service Manual (or use the parts contained on the parts list in the Service
Manual). Use of any parts which do not satisfy the required specifications may give rise to electric
shocks, smoking and/or a fire.
Do not bring a
child close to
the equipment.
If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical
parts with the electrical parts box cover of one or more of the indoor units and the service panel of the
outdoor unit removed in order to find out exactly where the trouble lies, place "Keep out" signs around
the work site before proceeding. Third-party individuals may enter the work site and receive electric
shocks if this warning is not heeded.
Insulating
measures
Connect the cut-off lead wires with crimp contact, etc, put the closed end side upward and then apply
a water-cut method, otherwise a leak or production of fire is caused at the users’ side.
No fire
When performing repairs using a gas burner, replace the refrigerant with nitrogen gas because the oil
that coats the pipes may otherwise burn. When repairing the refrigerating cycle, take the following
measures.
1) Be attentive to fire around the cycle.
When using a gas stove, etc, be sure to put out fire before work; otherwise the oil mixed with
refrigerant gas may catch fire.
2) Do not use a welder in the closed room. When using it without ventilation, carbon monoxide
poisoning may be caused.
3) Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may catch the
inflammables.
Use forklift to carry in the air conditioner units and use winch or hoist at installation of them.