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–10–

Select location
Install the air conditioner in the location that satis-
fies the following conditions.
• The place shall easily bear a load exceeding four

times the indoor unit’s weight.

• The place shall be able to inspect the unit as the

figure.

• The place where the unit shall be leveled.
• The place shall allow easy water drainage.(Suit-

able dimension “H” is necessary to get a slope to
drain as figure.)

• The place shall easily connect with the outdoor

unit.

• The place where the unit is not affected by an

electrical noise.

• The place where air circulation in the room will be

good .

• There should not be any heat source or steam

near the unit.

• If an awning is built over the unit to prevent

direct sunlight or rain exposure, be careful that
heat radiation from the condenser is not restrict-
ed. 

• There should not be any animals or plants which

could be affected by hot air discharged. 

• Ensure the spaces indicated by arrows from the

wall, ceiling, fence or other obstacles.

More than
30cm

More than
30cm

More than
70cm

H

600

600

(unit: mm)

Front

Inspection hole

(600X600)

Control box

1000

–19–

Ceiling

1~3mm

Drainage hole

Drainage hole

Make sure to be closed.

Unit

Drainage pipe
(Local supply)

Thermal insulator

(Local supply)

Drainage hole

Lay the drain hose with a downward inclination
so water will drain out.

• Alway lay the drain with downward inclina-

tion (1/50 to 1/100). 
Prevent any upward flow or reverse flow in
any part.

• 5mm or thicker formed thermal insulator

shall always be provided for the drain pipe.

1. Install declination of the indoor unit is very important for the drain of the duct type air conditioner.

2. Minimum thickness of the insulation for the connecting pipe shall be 5mm.

• The unit must be horizontal or declined to the drain hose connected when finished installation.

• Upward routing not

allowed

–20–

• Drill the piping hole with 70mm dia, hole

core drill.

• Piping hole should be slightly slant to the

outdoor side.

Insulate the joint and tubes completely.

All thermal insulation must comply with local requirement.

• Insulate and tape both the gas piping and liquid piping.

5~7mm

Indoor

Outdoor

WALL

Make sure that there is no clearance here.

Overlap with thermal
insulator for piping.

Thermal insulator for refrigerant pipe
(Local supply)

Thermal insulator for
piping(Local supply)

Hose crip for thermal insulator(Local supply)

Union for liquid pipe

Refrigerant pipe and thermal
insulator(Local supply)

Union for gas pipe

Thermal insulator for refrigerant pipe
(Local supply)

Hose crip for thermal insulator
(Local supply)

Connecting cable

Liquid pipe

Thermal insulator

Gas pipe

Tape

• If you want to connect an additional drain hose,

the end of the drain-outlet should keep distance
from the ground. (Do not dip it into water, and fix
it on the wall to avoid swinging in the wind.) 

–21–

• The initial power supply must provide at least 90% of the rated voltage.

Otherwise, the air conditioner should not be operated.

¤

For test run, carry out the cooling operation firstly even during heating season. If heating operation
is carried out firstly, it leads to the trouble of compressor. Then attention must be paid.

¤Ł

Carry out the test run more than 5 minutes without fail.
(Test run will be cancelled 18 minutes later automatically)

• The test run is started by pressing the room temperature checking button and down timer button for 3 sec-

onds at the same time.

• To cancel the test run, press any button.

• After completing work, be sure to measure and record trial run properties, and store measured data, etc.
• Measuring items are room temperature, outside temperature, suction temperature, blow out temperature,

wind velocity, wind volume, voltage, current, presence of abnormal vibration and noise, operating pressure,
piping temperature, compressive pressure.

• As to the structure and appearance, check following items.

¡

Is the circulation of air adequate?

¡

Is the draining smooth?

¡

Is the heat insulation complete

(refrigerant and drain piping)?

¡

Is there any leakage of refrigerant?

¡

Is the remote controller switch operated?

¡

Is there any faulty wiring?

¡

Are not terminal screws loosened?

M4...118N.cm{12kgf.cm}

M5...196N.cm{20kgf.cm}

M6...245N.cm{25kgf.cm}

M8...588N.cm{60kgf.cm}

Seal a small opening 
around the pipings 
with gum type sealer.

Trap

Trap is required to prevent water from entering 
into electrical parts.

Seal a small opening
around the pipings
with gum type sealer.

Drain hose

Taping

Pipings

Connecting
cable

Power supply
cord