DOWNLOAD Panasonic CS-BE25TKE / CS-BE35TKE / CS-BE50TKE / CU-BE25TKE / CU-BE35TKE / CU-BE50TKE (serv.man2) Service Manual ↓ Size: 40.8 MB | Pages: 126 in PDF or view online for FREE

33 

 
 

 

 
 
 
 
 
 
 
 

CN-HOT

CN-STM

CN-TH1

CN-MTR2

CN-MTR1

CN-TANK

AC-BLK

FG1

DATA

FG2

AC-WHT

RAT1
RAT2

POWER
TRANSISTOR
(IPM)

CURRENT

TRANSFORMER

(CT)

34 

  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 BE20*** 
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. 
 
 
 
 
 
 
 

 

 

 

  This illustration is for explanation purposes only. 

The indoor unit will actually face a different way. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Model

Horse 

Power 

(HP)

Piping size

Std. 

Length 

(m)

Max. 

Elevation 

(m)

Min. 

Piping 

Length 

(m)

Max. 

Piping 

Length 

(m)

Additional 

Refrigerant 

(g/m)

Piping 

Length 

for add. 

gas

(m)

Gas

Liquid

BE20***

3/4HP

9.52mm 

(3/8")

6.35mm 

(1/4")

5

15

3

15

15

7.5

KE25***, 
BE25***,
DE25***

5

.

7

5

1

5

1

3

5

1

P

H

0

.

1

KE35***, 
BE35***,
DE35***

5

.

7

0

2

5

1

3

5

1

P

H

5

.

1

KE50***,
BE50***,
DE50***

2.0HP

12.7mm 

(1/2")

15

3

15

20

7.5

50 mm 

or more

65 mm 

or more

(Left and right are identical)

 Vinyl tape

 

6

Remote control holder 

5

Remote 

Remote control holder fixing screws

control 

3

100 mm

or more

1000 mm 

or more

100 mm 

or more

300 mm

or more

It is advisable to 
avoid more than 2 
blockage directions. 
For better ventilation 
& multiple-outdoor 
installation, please 
consult authorized 
dealer/specialist.

Installation plate 

1

Sleeve ( )

Bushing-Sleeve ( )

Bend the pipe as 
closely on the wall as 
possible, but be careful 
that it doesn’t break.

Saddle ( )

Power supply cord ( )

Additional drain hose ( )

Gas side piping ( )

Connection cable ( )

Putty ( ) 
(Gum Type Sealer) 

Installation parts you 
should purchase ( )

Vinyl tape (wide) ( )

 

• Apply after carrying 

out a drainage test.

 

• To carry out the 

drainage test, 

and pour water into 
the heat exchanger.

remove the air filters

Liquid side piping ( )

 

• Carry out insulation after 

checking for gas leaks and 
secure with vinyl tape.

Attaching the remote control holder to the wall

Insulation of piping connections

Piping direction

Attention not to bend 
up drain hose

Right

Right 
Rear

Right 
bottom

Left 
Rear

Left bottom

Left

(Front side)

35 

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

 

 

Model 

Dimension 

1 

2  3 4 5 6 

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

480 mm 

90 mm 

425 mm 

425 mm 

43 mm 

95 mm 

 

 

 

Model 

Dimension 

1 

2  3 4 5 6 

KE50***, BE50***, DE50*** 

490 mm 

85 mm 

439 mm 

432 mm 

43 mm 

95 mm 

 
The center of installation plate should be at more than 1 at right and left of the wall. 
The distance from installation plate edge to ceiling should more than 2. 
From installation plate center to unit’s left side is 3. 
From installation plate center to unit’s right side is 4. 
B

 

: For left side piping, piping connection for liquid should be about 5 from this line. 

 

: For left side piping, piping connection for gas should be about 6 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.) 

o

 

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. 

o

 

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. 

o

 

Drill the piping hole at either the right or the left and the hole should be slightly slanting to the outdoor 
side. 

3

4

B

A

C

Ceiling

Wall

Wall

Installation 
plate 

1

2 screw

More than 

1

More than 

1

Measuring Tape

Indoor unit

228 mm

128 mm

228 mm

128 mm

More than 

2

For best strength of 
INDOOR unit installation, 
it is highly recommended 
to locate “ ” at 5 position 
as shown. 

3

4

B

A

C

Ceiling

Wall

Wall

Installation 
plate 

1

2 screw

More than 

1

More than 

1

Measuring Tape

Indoor unit

241.5 mm

128 mm

241.5 mm

128 mm

More than 

2

For best strength of 
INDOOR unit installation, 
it is highly recommended 
to locate “ ” at 5 position 
as shown. 

36 

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. 

 

 

   

           

 

 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. 

 

4  Finish by sealing the sleeve with putty or 

caulking compound at the final stage. 
 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Putty or caulking compound

Sleeve for 
tube assembly

Approx. 5 - 7 mm

Bushing for tube assembly

Wall

ø70 mm 
through hole

Indoor

Outdoor

15 mm