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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 E9***
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. 

Leng-

th

(m)

Max. 

Eleva-

tion 

(m)

Min.

Piping 

Length

(m)

Max.

Piping 

Leng-

th

(m)

Addi-
tional 

Refri-

gerant 

(g/m)

Pi-

ping 

Leng-

th for 

add. 

gas 

(m)

Gas

Liquid

E7***, 

XE7***

3/4 ~ 

1.75HP

9.52mm 

(3/8”)

6.35mm

(1/4”)

5

15

3

15

20

7.5

E9***, 

XE9***

15

3

15

20

7.5

E12***, 

XE12***

15

3

15

20

7.5

E15***, 

XE15***

12.7mm 

(1/2”)

15

3

15

20

7.5

E18***, 

XE18*** 2.0 ~ 

2.25HP

15

3

20

20

7.5

E21***, 

XE21***

15

3

20

20

7.5

E24*** 2.5HP 15.88mm 

(5/8”)

20

3

30

30

10

E28*** 3.0HP

20

3

30

30

10

26

The mounting wall shall be strong and solid enough to prevent
it from the vibration.

The center of installation plate should be at more than   at
right and left of the wall.
The distance from installation plate edge to ceiling should more
than .
From installation plate left edge to unit’s left side is  .
From installation plate right edge to unit’s right is  .
B

: For left side piping, piping connection for liquid should be 

about   from this line.

: For left side piping, piping connection for gas should be

about   from this line.

1. Mount the installation plate on the wall with 5 screws or

more (at least 5 screws).
(If mounting the unit on the concrete wall, consider using
anchor bolts.)

• Always mount the installation plate horizontally by

aligning the marking-off line with the thread and using a
level gauge.

2. Drill the piping plate hole with ø70 mm hole-core drill.

• Line according to the left and right side of the installation

plate. The meeting point of the extended line is the
center of the hole. Another method is by putting
measuring tape at position as shown in the diagram
above. The hole center is obtained by measuring the
distance namely 128 mm for left and right hole
respectively.

• Drill the piping hole at either the right or the left and the

hole should be slightly slanting to the outdoor side.

1. Insert the piping sleeve to the hole.
2. Fix the bushing to the sleeve.
3. Cut the sleeve until it extrudes about 15 mm from the

wall.

4. Finish by sealing the sleeve with putty or caulking

compound at the final stage.

Model

Dimension

E7***, XE7*** 
E9***, XE9*** 
E12***, XE12*** 
E15***, XE15***

485 mm 82 mm 165 mm 158 mm 43 mm 95 mm

E18***, XE18*** 
E21***, XE21*** 
E24***, E28***

585 mm 82 mm 165 mm 158 mm 169 mm 219 mm

When the wall is hollow, please be sure to use the sleeve 
for tube assembly to prevent dangers caused by mice 
biting the connection cable.

27

1. For the right rear piping

2. For the right and right bottom piping

3. For the embedded piping

(This can be used for left rear piping and bottom piping also.)

28

1. The inside and outside connection cable can be

connected without removing the front grille.

2. Connection cable between indoor unit and outdoor unit

shall be approved polychloroprene sheathed 4 x 1.5 mm

2

flexible cord, type designation 245 IEC 57 or heavier
cord.

3. Bind all the indoor and outdoor connection cable with

tape and route the connection cable via the escapement.

4. Remove the tapes and connect the connection cable

between indoor unit and outdoor unit according to the
diagram below.

5. Secure the connecting cable onto the control board with the holder (clamper).

• Ensure the colour of wires of outdoor unit and the terminal Nos. are the same to the indoor’s respectively.
• Earth wire shall be Yellow/Green (Y/G) in colour and longer than other AC wires for safety reason.