Refrain from installing the unit in an area where flammable gas can accumulate around the unit.
If the flammable gas can accumulate around the unit, an explosion can occur.
When the unit is installed at telecommunication centers or hospitals, take a proper provision against noise.
The erroneous operation of air conditioner may be induced by inverter equipment, independent power device, medical equipment or communication equipment.
While the erroneous operation of medical equipment or communication equipment may caused by the air conditioner.
For special use as for foods, animals/plants, precision equipment or art objects, the applicability should be confirmed beforehand.
As the use for the applications other than that designed originally may result in the deterioration of the quality. Consult your dealer in this regard.
Do not use the unit under a special atmosphere. Installing the unit at the following places may cause a trouble, a place where much machine oil, salt sonnet, humidity or dust, spa district, a place full of sulfur gas, volatile gas, or corrosive gas, a place near high frequency processing machine.
Thermal insulation of the drain pipes is necessary prevent dew condensation.
If the drain pipes are not properly insulated, condensation will result and drip on ceiling, floor or other possessions.
The drain piping must process by surely,and insulate the drain piping not to be dewy.
When the room humidity exceeds 80% or when the drain pipe is clogged, water may drip from the indoor unit. The outdoor unit produces condensation during the heating operation.
Make sure to provide drainage around the outdoor unit if such condensation is likely to cause damage.
Install drain piping according to this Installation Manual to ensure proper drainage.
Place thermal insulation on the pipes to prevent condensation.
Improper drain piping may cause water leakage and damage to furniture or other possessions.
The unit must be properly earth connected.
Do not connect the earth wire to gas pipe, city water pipe, lightning rod or telephone earth wire.
Improper earth connection may cause electrical shock.
When installing at a watery place, provide an electric leak breaker.
Failure to mount the electric leak breaker may cause electrical shock.
Use breaker or fuse with proper capacity. Make sure that there is a main power switch.
Using a wire or a copper wire instead of proper capacity of fuse can cause fire or trouble.
Other appliances connected to the same line could cause an overload.
For the power lines, use standard cables of sufficient current capacity.
Otherwise, current leakage, overheating or fire may occur.
When installing the power lines, do not apply tension to the cables.
The tighten or loosen the connections may cause generate heat and cause fire.
Arrange the configuration of wiring not to bring up the panel and terminal cover, and fasten the panel and terminal cover securely.
The poor mounting of the panel or terminal cover may cause the heat generation of the terminal connection, a fire or electrical shock.
Do not wash the unit with water.
If washed with water, electrical shock may be caused.
Do not handle the switch with wet hands.
Otherwise electrical shock can be resulted.
Be very careful on handling the unit.
When carrying in outdoor unit, be sure to support it at four points.
Carrying in and lifting with 3-point support may make outdoor unit unstable, resulting in a fall of it.
The unit should not be carried by only one person if it is more than 20kg.
Some units use PP bands for packing.
Do not use any PP band for delivery purpose.
Do not touch the heat exchanger fins with your bear hands.
Doing so may cut your hands.
Be sure to safely dispose the packaging materials. Packaging materials, such as catches and other metal or wooden parts, may cause stabs or other injuries. Tear off and discard plastic packing bags so that children will not play any of them.
If children play with a plastic bag which was not torn off, it may cause a risk of suffocation.
The base and attachments of the unit should be periodically checked for looseness, cracks or other damage.
If such defects are left uncorrected, the unit may fall and cause personal injury or property damage.
Turn on the main power switch more than 6 hours before starting operation.
Do not turn the main power switch OFF during seasons of heavy use, doing so can result In failure.
Do not touch the compressor or refrigerant piping without wearing glove on your hands.
Touching directly such part can cause a burn or frostbite as it becomes high or low temperature according to the refrigerant state.
Do not touch the metal edges inside the unit without wearing glove on your hands. Touching directly it may injure your hands.
Do not remove the front panel or the fan guard from the unit when it is running.
You could be injured if you touch rotating, hot or high- voltage parts.
Do not operate the air conditioner without the air filter set place.
Dust may accumulate, and cause a failure.
At emergency (if you smell something burning), stop operation and turn the power source switch off.
Continuing the operation without eliminating the emergency state may cause a machine trouble, fire, or electrical shock.
After stopping operation, be sure to wait for five minutes before turning off the main power switch. Otherwise, water leakage or unit failure may occur.
Caution