To avoid the possibility of fire, do not install the unit in an area where combustible gas may generate, flow, stagnate, or leak. Installing the unit in

an area containing combustible gas will cause serious bodily injury or death.

Note:

Before beginning installation, read the safety summary at the beginning of this manual.

Select a location for installing the ceiling cassette indoor unit (IDU) that meets the following conditions:

• Place the unit where air circulation will not be blocked.

• Place the unit where drainage can be obtained easily.

• Place the unit where noise prevention is taken into consideration.

• Ensure there is sufficient strength to bear the load of the indoor unit.

• Ensure there is sufficient maintenance space.

• Locate the indoor unit in a location that is level, and where it can be easily connected to the outdoor unit / branch distribution unit.

The unit may be damaged, may malfunction, and / or will not operate as designed if installed in any of the conditions listed.

The unit should not be installed near a heat or steam source, or where considerable amounts of oil, iron powder, or flour are used.

Do not install the unit in an area where combustible gas may generate, flow, vent into, stagnate, leak, or be stored.

Do not install the unit in a location where acidic solution and spray (sulfur) are often used.

Do not use the unit in environments where oil, steam, or sulfuric gas are present.

Avoid installing the unit near high-frequency generators or near any equipment that generates an electromagnetic field (minimum

3-1/3 feet away)

Do not install the unit near a doorway.

Note:

If the unit is installed near a body of water, certain components are at risk of being corroded. Appropriate anti-corrosion methods should be taken for

the unit and all components.

Installing in a High or Dropped Ceiling

High or dropped ceilings, often found in commercial buildings and

offices, may cause a wide temperature differentiation. To counter-

measure:

• Change the indoor unit mode selection to allow for higher

ceilings (see table).

• Install an air circulator.

• Set the air discharge outlet so that heated air flows in a down-

ward direction.

• Use a dual door system to protect the building gate or exit.

Installing in an Area Exposed to Unconditioned Air