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Installation of ceiling panel
(Sold separately)

Install the ceiling panel according to Installation
Manual attached with it after piping / wiring work has
completed.
Check that installation of indoor unit and ceiling
opening part is correct, and then install it.

REQUIREMENT

• Joint the connecting sections of ceiling panel, ceiling

surface, ceiling panel and indoor unit closely.
Any gap between them will cause air leakage and the
generate condensation or water leakage.

• Remove the adjust corner caps at the four corners of

the ceiling panel, and then install the ceiling panel
onto the indoor unit.



Installation of remote
controller (Sold separately)

For installation of the wired remote controller, follow the
Installation Manual attached with the remote controller.
• Pull out the remote controller wire together with the

refrigerant pipe or drain pipe.
Pass the remote controller wire through upper side of
the refrigerant pipe and drain pipe.

• Do not leave the remote controller at a place

exposed to the direct sunlight and near a stove.



Installation of wireless
remote controller
(Sold separately)

The signal receiving unit of indoor unit can receive a
signal by distance within approx. 7 m. Based upon it,
determine a place where the remote controller is
operated and the installation place.
• Operate the remote controller, confirm that the

indoor unit receives a signal surely, and then install
it.

• Keep 1 m or more from the devices such as

television.
(Disturbance of image or noise may generate.)

• To prevent a malfunction and reception failure of the

remote controller, select a place where it is not
influenced by a fluorescent light, equipment
(Electronic whiteboard etc.) emitting infrared rays, or
direct sunlight.

• Switching the setting (A-B selection) of the wireless

remote controllers and the signal receiving unit
enables two indoor units installed in a room to be
respectively operated using two wireless remote
controllers.

7 m

r le

Drain piping

CAUTION

Following the Installation Manual, perform the drain
piping work so that water is properly drained, and
apply a heat insulation so as not to cause a dew
drop.
Inappropriate piping work may result in water
leakage in the room and wet of furniture.



Piping / Heat insulating
material

Require the following materials for piping and heat
insulating at site.



Flexible hose

Use the attached flexible hose to adjust centre
discrepancy of the hard vinyl chloride pipe.
• Do not use the flexible hose as stretched, or do not

deform.

• Fix the soft end of the flexible hose with the attached

hose band.

• Use the flexible hose on a horizontal level.

REQUIREMENT

• Perform heat insulation of the drain pipes of the indoor

unit.

• Perform heat insulation of the connecting part with the

indoor unit.
An incomplete heat insulation causes dew drop.

• Set the drain pipe with downward slope (1/100 or

more), and do not make swelling or trap on the piping.
It may cause an abnormal sound.

• For length of the traversing drain pipe, restrict to 20 m

or less.
In case of a long pipe, provide support brackets with
interval of 1.5 - 2 m in order to prevent waving.

• Set the collective piping as shown in the below figure.

• Do not apply force to the connecting part of the drain

pipe.

• The hard vinyl-chloride pipe cannot be directly

connected to the drain pipe connecting port of the
indoor unit.
For connection with the drain pipe connecting port, fix
the attached flexible hose with the hose band,
otherwise a damage or water leak is caused on the
drain pipe connecting port.

Piping

Hard vinyl chloride pipe VP20

(Outer dia.: 26 mm)

Heat insulator

Foam polyethylene:

Thickness 10 mm or more

Correct

Incorrect

Straight

Bend

(Trap)

Bend