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• There should not be any heat source or steam near the unit.
• There should not be any obstacles blocking the air

circulation.

• A place where air circulation in the room is good.
• A place where drainage can be easily done.
• A place where noise prevention is taken into consideration.
• Do not install the unit near the door way.
• Ensure the spaces indicated by arrows from the wall, ceiling,

fence or other obstacles.

• Recommended installation height for indoor unit shall be at

least 2.5 m.

• If an awning is built over the unit to prevent direct sunlight or

rain, be careful that heat radiation from the condenser is not
obstructed.

• There should not be any animal or plant which could be

affected by hot air discharged.

• Keep the spaces indicated by arrows from wall, ceiling,

fence or other obstacles.

• Do not place any obstacles which may cause a short circuit

of the discharged air.

• If piping length is over 10 m, additional refrigerant should be

added as shown in the table.

Example : For E18GK
If the unit is installed at a 15 m distance, the quantity of
additional refrigerant should be 100 g ...... (15 - 10) m x 20 g/m

= 100 g.

Model

Piping size

Rated 

Length 

(m)

Max 

Elevation 

(m)

Min.   

Piping 

Length 

(m)

Max.   

Piping 

Length 

(m)

Additional 

Refrigerant 

(g/m)

Gas Liquid

E18GK 1/2”

1/4”

5

15

3

20

20

E21GK 1/2”

1/4”

5

15

3

20

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