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37 

 

 

 

 

 
 
 
 
 
 

 
 

 

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

 

•

 Do not turn over the unit without it’s shock absorber during pull out the piping.
It may cause intake grille damage.

 

•

 Use shock absorber during pull out the piping to protect the intake grille from damage.

Intake grille

Piping

pull ou

t the

 pip

in

g

Piping

Shock absorber

pull o

ut t

he

 p

ip

in

g

Install the Indoor Unit

Pull out the Indoor piping

Step-2

Secure the Indoor Unit

Insert the power supply cord and connection cable

Step-1

Step-3

Step-4

• Insert the cables from bottom of the unit through the control board hole until
 

terminal board area.

Install the Indoor Unit

Pull out the Indoor piping

Step-2

Insert the power supply cord and connection cable

Secure the Indoor Unit

Step-1

Step-3

Step-4

• Insert the cables from bottom of the unit through the control board hole until
  terminal board area.

• Use a spring bender or equivalent to bend the piping so that the piping is not 
    crushed.

• When determining the dimensions of the piping, slide the unit all the way to the  
    left on the installation plate.

• Refer to the section “Cutting and flaring the piping”.

Bend the embedded piping

Cut and flare the embedded piping

Replace the drain hose

Pull the connection cable into Indoor Unit

• The power supply cord and indoor unit and outdoor unit connection cable can
  be connected without removing the front grille.

• Please refer to “Connecting the piping” column in outdoor unit section. 
    (Below  steps  are  done after connecting the outdoor piping and gas-leakage 
    confirmation.)

Connect the piping

• Please refer to “Insulation of piping connection” column as mentioned in
  indoor/outdoor unit installation.

Install the Indoor Unit

Secure the Indoor Unit

Insulate and finish the piping

Step-1

Step-2

Step-3

Step-4

Step-5

Step-6

Step-7

Step-8

In case of the cover is cut, keep the cover at the rear 
of chassis as shown in the illustration for future 
reinstallation. 

(Left, right and 2 bottom covers for piping.)

How to keep the cover

Hook the indoor unit onto the upper  
portion of installation plate. (Engage the  
indoor unit with the upper edge of the 
installation plate). Ensure the  hooks are  
properly seated on the installation plate
by moving it in left and right. 

Press the lower left and right side of the unit against 
the installation plate until hooks engages with their 
slot (sound click).

Right Rear piping

Right and Right Bottom piping

Install the indoor unit

Secure the Indoor Unit

Insert the connection cable

Cover for the 
bottom piping

Cover for the 
bottom piping

Tape it with piping in a 

position as mentioned 

in Fig. below.

Cover for 
the right 
piping

Piping

Drain 
hose

Cover for 
the left 
piping

Cover for 
the bottom 
piping

Tape it with piping in a 

position as mentioned 

in Fig. below.

Cover for 
the right 
piping

Piping

Drain hose

Cover for 
the left 
piping

Drain hose

Sleeve for piping hole

Indoor unit

Hooks at installation 
plate

Piping

Cover for piping

Guide 
surface

Connection cable

About 

70 – 80 mm

Connection cable

Gas side piping

Liquid side piping

Drain hose

Installation 
plate

Unit’s hook

To take out the unit, push the          marking at the bottom
unit, and pull it slightly towards you to disengage the hooks
from the unit.

g

n

i

k

r

a

m

 

38 

 

The power supply cord, indoor and outdoor unit connection cable can be connected without removing the front grille. 

1  Install the indoor unit on the installing holder that mounted on the wall. 
2  Open the front panel and grille door by loosening the screw. 
3  Cable connection to the power supply through Isolating Devices (Disconnecting means). 

o

 

Connect approved type polychloroprene sheathed power supply cord 3 x 1.5 mm

2

 (3/4 ~ 1.5HP) or 3 x 

2.5 mm

2

 (2.0HP) type designation 60245 IEC 57 or heavier cord to the terminal board, and connect the 

others end of the cord to Isolating Devices (Disconnecting means). 

o

 

Do not use joint power supply cord. Replace the wire if the existing wire (from concealed wiring, or 
otherwise) is too short. 

o

 

In unavoidable case, joining of power supply cord between isolating devices and terminal board of air 
conditioner shall be done by using approved socket and plug with earth pin rated 15/16A (3/4 ~ 1.5HP) 
or 16A (2.0HP). Wiring work to both socket and plug must follow to national wiring standard. 

4  Bind all the power supply cord lead wire with tape and route the power supply cord via the left escapement. 
5  Connection cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed  

4 x 1.5 mm

2

 (3/4 ~ 1.5HP) or 4 x 2.5 mm

2

 (2.0HP) flexible cord, type designation 60245 IEC 57 or heavier 

cord. Do not use joint connection cable. Replace the wire if the existing wire (from concealed wiring, or 
otherwise) is too short. Allowable connection cable length of each indoor unit shall be 30 mm or less. 

6  Bind all the indoor and outdoor connection cable with tape and route the connection cable via the right 

escapement. 

 
 
 
 
 
 
 
 

 

•

How to pull the piping and drain hose out, in case of the 
embedded piping.

 

•

In case of left piping how to insert the 
connection cable and drain hose.

Rear view for left piping installation

Drain cap

Drain hose

Adjust the piping slightly 
downwards.

Drain hose

Connection cable

 

PVC tube 
for drain 
hose

Indoor unit

100 mm

Piping

Cable

Apply putty or 
caulking material 
to seal the wall 
opening.

Connection cable

Piping

More than 

470 mm

More than 

950 mm

PVC tube (VP-65) for piping 
and connection cable

PVC tube for drain hose (VP-30)

PVC tube for drain 
hose (VP-20)

More than 700 mm

Drain hose 
from main unit

Exchange the drain hose and cap

Cable

45°

Drain 
hose

Piping

Sleeve for piping hole

Drain hose

Piping

Connection cable

More than 950 mm

(For the right piping, follow the same procedure)

39 

7  Remove the tapes and connect the power supply cord and connection cable between indoor unit and outdoor 

unit according to the diagram below. 

 

 

 

8  Secure the power supply cord and connection cable onto the control board with the holder. 
9  Close grille door by tighten with screw and close the front panel. 

 

Note: 

  Isolating Devices (Disconnecting means) should have minimum 3.0 mm contact gap. 

  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 as shown in the figure for the 

electrical safety in case of the slipping out of the cord from the anchorage. 

 

 

 
 
 
 
 
 
 
 

3

2

1

t

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n

u

 

r

o

o

d

t

u

o

 

e

h

t

 

n

o

 

s

l

a

n

i

m

r

e

T

Colour of wires (connection cable)

Terminals on the indoor unit

L

N

1

2

3

(Power supply cord)

Terminals on the isolating devices 
(Disconnecting means)

(L) (N)

Recommended 
length (mm)

a b

c

d e

f

g

55 35 35 50 40 35 60

 WARNING

 This equipment must 

be properly earthed.

Recommended 

length (mm)

Tape

Connection cable

Tape

Power supply cord

Terminal Board

Control 

Board

Earth wire 
longer than 
others 
AC wires 
for safety 
reason

Holder

Holder

Indoor & outdoor 
connection cable 

Isolating Devices

Outdoor unit

Power supply 

cord

OR

OR

OR

  Do not joint wires

  Use complete wire without joining.

  Use approved socket and plug with earth pin.

   Wire connection in this area must follow to national wiring rules.

Conductor 

over inserted

Wire stripping

No loose strand 
when inserted

10 ± 1 mm

Conductor 

fully inserted

PROHIBITED

Conductor not 

fully inserted

PROHIBITED

ACCEPT

Indoor/outdoor 
connection 
terminal board

5 mm or more 

(gap between wires)

RISK OF FIRE
JOINING OF WIRES 
MAY CAUSE 
OVERHEATING AND 
FIRE.

40 

  After selecting the best location, start installation 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, screws or nails. 

 

 

Model A 

B 

C 

D 

BE20*** 
KE25***, BE25***, DE25***
KE35***, BE35***, DE35***

570 mm  105 mm  18.5 mm 320 mm

KE50***, BE50***, DE50*** 540 mm  160 mm  18.5 mm 330 mm

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. 

 
 

Do not overtighten, overtightening may cause gas leakage. 

 
 

Piping size 

Torque 

6.35 mm (1/4") 

[18 N•m (1.8 kgf•m)] 

9.52 mm (3/8") 

[42 N•m (4.3 kgf•m)] 

12.7 mm (1/2") 

[55 N•m (5.6 kgf•m)] 

15.88 mm (5/8") 

[65 N•m (6.6 kgf•m)] 

19.05 mm (3/4") 

[100 N•m (10.2 kgf•m)] 

 

Decide piping length and then cut by using pipe cutter. 
Remove burrs from cut edge. 
Make flare after inserting the flare nut (locate 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. 
 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

A

B

C

D

Torque 
wrench

Spanner or 
Wrench