CS-C18JKD, CU-C18JKD, CS-C24JKD, CU-C24JKD - Panasonic Air Conditioner Service Manual (repair manual). Page 19

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• Do not install the unit in excessive oil fume area such as

kitchen, workshop and etc.

• 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 the [piping length for additional gas],

additional refrigerant should be added as shown in the table.

Example: For C18JKD
If the unit is installed at 10 m distance, the quantity of additional 
refrigerant should be 50 g .... (10-7.5) m x 20 g/m = 50 g

Model

Horse 

Power 

(HP)

Piping size

Std. 

Length

(m)

Max. 

Ele-

vation 

(m)

Min.

Piping 

Length

(m)

Max.

Piping 

Length

(m)

Addi-
tional 

Refri-

ge-

rant 

(g/m)

Piping 

Length 

for

add. 

gas 

(m)

Gas Liquid

C7JKD

3/4 ~ 

1.5HP

3/8”

1/4”

7.5

5

3

10

10

7.5

C9JKD

5

3

10

10

7.5

C12JKD

1/2”

5

3

15

10

7.5

C18JKD 2.0 ~ 

2.5HP

5

20

3

25

20

7.5

C24JKD

5/8”

20

3

25

30

7.5