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• While following the instructions in this installation manual, install drain piping to ensure proper drainage and insulate piping to
prevent condensation.
Improper drain piping may result in indoor water leakage and property damage.
• Install the indoor and outdoor units, power cord and connecting wires at least 1 meter away from televisions or radios to prevent
picture interference and noise.
(Depending on the incoming signal strength, a distance of 1 meter may not be sufficient to eliminate noise.)
• Remote controller (wireless kit) transmitting distance can be shorter than expected in rooms with electronic fluorescent lamps
(inverter or rapid start types).
Install the indoor unit as far away from fluorescent lamps as possible.
• Do not install the air conditioner in the following locations:
1. Where there is a high concentration of mineral oil spray or vapour (e.g. a kitchen).
Plastic parts will deteriorate, parts may fall off and water leakage could result.
2. Where corrosive gas, such as sulphurous acid gas, is produced.
Corroding of copper pipes or soldered parts may result in refrigerant leakage.
3. Near machinery emitting electromagnetic radiation.
Electromagnetic radiation may disturb the operation of the control system and result in a malfunction of the unit.
4. Where flammable gas may leak, where there is carbon fibre or ignitable dust suspensions in the air, or where volatile flam-
mables such as paint thinner or gasoline are handled.
Operating the unit in such conditions may result in fire.
• Be sure to attach the air filters (field supply) inside the suction passage. Failure to attach them may result in a malfunction of the
equipment.
• Do not touch the heat exchanger fins.
Improper handling may result in injury.
• Be very careful about product transportation.
Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous.
• Safely dispose of the packing materials.
Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries.
Tear apart and throw away plastic packaging bags so that children will not play with them. If children play with a plastic bag
which was not torn apart, they face the risk of suffocation.
• Do not turn off the power immediately after stopping operation. Always wait at least 5 minutes before turning off the power. Oth-
erwise, water leakage and trouble may occur.
• Please take necessary measures to prevent this product from electromagnetic interference.
• The air conditioner is not intended for use in a potentially explosive atmosphere.
BEFORE INSTALLATION
• Be sure to check the type of R410A refrigerant to be used before installing the unit. (Using an incorrect refrigerant will prevent nor-
mal operation of the unit.)
• This unit is for indoor use only.
• The accessories needed for installation must be retained in your custody until the installation work is completed. Do not discard
them!
• Decide upon the transportation route.
• Leave the unit inside its packaging while moving, until reaching the installation site. Where unpacking is unavoidable, use a sling of
soft material or protective plates together with a rope when lifting, to avoid damage or scratches to the unit.
• This unit is connected to two outdoor units.
• When carrying or opening the package of the indoor unit, hold the suspension supports (×4) of the indoor unit. Do not apply force
to the refrigerant piping, drain piping or plastic parts.
• Do not install or operate the unit in rooms mentioned below.
• Laden with mineral oil, or filled with oil vapor or spray like in kitchens. (Plastic parts may deteriorate which could even-
tually cause the unit to fall out of place, or could lead to leaks.)
• Where corrosive gas like sulfurous gas exists. (Copper tubing and brazed spots may corrode which could eventually
lead to refrigerant leaks.)
• Where exposed to combustible gases and where volatile flammable gas like thinner or gasoline is used. (Gas in the
vicinity of the unit could ignite.)
• Where machines can generate electromagnetic waves. (Control system may malfunction.)
• Where the air contains high levels of salt such as that near the ocean and where voltage fluctuates greatly such as that
in factories.
Also in vehicles or vessels.
• This unit, both indoor and outdoor, is suitable for installation in a commercial and light industrial environment.
If installed as a household appliance it could cause electromagnetic interference.
2
CAUTION
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