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1. For the right rear piping

2. For the right and right bottom piping

3. For the embedded piping

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

1. The inside and outside connecting cable can be

connected without removing the front grille.

2. Connecting cable between indoor unit and outdoor unit

shall be approved polychloroprene sheathed 3 x 1.5 mm

2

(3/4 ~ 1.5HP) or 3 X 2.5 mm

2

 (2.0 ~ 2.5HP) flexible cord,

type designation 245 IEC 57 or heavier cord.

• Secure the connecting cable onto the control board with

the holder.

 This equipment must be properly earthed.

• 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.

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1. Please cut using pipe cutter and then remove the burrs.
2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused.

Turn the piping end down to avoid the metal powder entering the pipe.

3. Please make flare after inserting the flare nut onto the copper pipes.

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• After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram.

1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm).
2. When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or

nails.

Connecting the Piping to Indoor
Please make flare after inserting flare nut (locate at joint portion
of tube assembly) onto the copper pipe. 
(In case of using long piping)
Connect the piping

• Align the center of piping and sufficiently tighten the flare nut

with fingers.

• Further tighten the flare nut with torque wrench in specified

torque as stated in the table.

Connecting the Piping to Outdoor
Decide piping length and then cut by using pipe cutter. Remove
burrs from cut edge. Make flare after inserting the flare nut
(located at valve) onto the copper pipe.
Align center of piping to valve and then tighten with torque
wrench to the specified torque as stated in the table.

WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the
following procedure.

1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve.

• Be sure to connect the end of the charging hose with the push pin to the service port.

2. Connect the center hose of the charging set to a vacuum pump.
3. Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 cmHg (0 MPa) to

-76 cmHg (-0.1 MPa). Then evacuate the air approximately ten minutes.

Model

A

B

C

D

C7JKD, C9JKD, 
C12JKD

474 mm

87 mm

18.5 mm

261 mm

C18JKD

570 mm

105 mm

18.5 mm

320 mm

C24JKD

612.5 mm

131 mm

19 mm

383 mm

Piping Size

Torque

1/4” (6.35 mm)

[18 N

•m (1.8 kgf.m)] 

3/8” (9.52 mm)

[42 N

•m (4.3 kgf.m)] 

1/2” (12.7 mm)

[55 N

•m (5.6 kgf.m)] 

5/8” (15.88 mm)

[65 N

•m (6.6 kgf.m)] 

3/4” (19.05 mm)

[100 N

•m (10.2 kgf.m)] 

Do not over tighten, over tightening cause gas leakage.