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33 

Applicable piping kit 

Piping size 

Gas Liquid 

CZ-3F5, 7BP 

9.52 mm (3/8") 

6.35 mm (1/4") 

CZ-4F5, 7, 10BP 

12.7 mm (1/2") 

6.35 mm (1/4") 

CZ-52F5, 7, 10BP 

15.88 mm (5/8") 

6.35 mm (1/4") 

 

  Pipe Size Reducer (CZ-MA1P) for Outdoor Multi 

Connection CS-TZ42*** 

  Please refer to “CONNECT THE PIPING” section 

  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. 

  Installation height for the indoor unit is 

recommended at 2.5 m. 

 
Table A 

Model Capacity 

W 

Indoor A

min

 (m

2

) 

1.8m for wall mounted 

2.5m for wall mounted 

TZ20*** 3/4HP 

0.45 

0.23 

TZ25*** 1.0HP 

0.57 

0.30 

TZ35*** 1.5HP 

0.76 

0.40 

TZ42*** 1.75HP 

0.85 

0.44 

 
* Table “A” only applicable for single split connection. 
* In case of connection to outdoor multi inverter, refer  
  to installation manual at outdoor unit. 
 

min

 = (M / (2.5 × (LFL)

(5/4)

 × h

0

)) 

2

 

 

min

  = Required minimum room area, in m

2

= Refrigerant charge amount in appliance, in kg 

LFL  = Lower flammable limit (0.306 kg/m

3

) 

0

= Installation height of the appliance 
   : (1.8 m for wall mounted is standard reference 
     installed height) 
   : (2.5m for wall mounted is recommended  
     installed height given by manufacturer) 

 
 
 

 

(Left and right are identical)

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 (   )

Putty (   )
(Gum Type Sealer)

Installation parts you 
should purchase (   )

65 mm 

or more

 WARNING

Flare connection only at 
outside of building

50 mm 

or more

Piping direction

Attention not to bend 
up drain hose

(Front side)

Right

Right 
Rear

Right 
bottom

Left 
Rear Left bottom

Left

Vinyl tape (wide) (   )

 

• Apply after carrying 

out a drainage test.

 

• To carry out the 

drainage test, 
remove the air fi lters 
and pour water into 
the heat exchanger.

• 

Carry out insulation after 
checking for gas leaks and 
secure with vinyl tape.

 Vinyl tape

Remote control holder 

5

Remote control holder fi xing screws 

6

Remote 
control 

3

Insulation of piping connections

Attaching the remote control holder to the wall

 

 

  This illustration is for explanation purposes only. 

The indoor unit will actually face a different way. 

  Respective outdoor unit installation procedure 

shall refer to instruction manual provided in the 
outdoor unit packaging. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

34 

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

3

4

B

A

C

Ceiling

Wall

Wall

Installation 
plate 

1

2 screw

More than 

1

More than 

1

Measuring Tape

Indoor unit

184 mm

128 mm

222 mm

128 mm

More than 

2

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

 

 

Model 

Dimension 

1

 

2

 

3

 

4

 

5

 

6

 

TZ20***, TZ25***, TZ35***, TZ42*** 

470 mm 

90 mm 

380 mm 

420 mm 

45 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. 

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. 

 
 

15 mm

Putty or caulking compound

ø70 mm 
through hole

Indoor

Outdoor

Sleeve for tube 
assembly

Approx. 5 - 7 mm

Bushing for 
tube assembly

Wall

 

 

 
 
 
 
 
 

35 

  

● 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 out 

the p

ipin

g

Piping

Shock absorber

pull o

ut th

e p

ipin

g

 

 

Install the Indoor Unit

Pull out the Indoor piping

Step-2

Secure the Indoor Unit

Insert the connection cable   

Step-1

Step-3

Step-4

 

Install the Indoor Unit

Pull out the Indoor piping

Step-2

Insert the connection cable

Secure the Indoor Unit

Step-1

Step-3

Step-4

 

Bend the embedded piping

Replace the drain hose

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

• The inside and outside connection cable can be connected 
    without removing the front grille. 

Step-2

Step-1

Pull the connection cable into Indoor Unit 

Step-3

• 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”.

Cut and flare the embedded piping

Step-4

• 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

Step-6

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

Insulate and finish the piping

Step-7

Secure the Indoor Unit

Step-8

Install the Indoor Unit

Step-5

 

 
 
 
 
 
 
 
 
 

 

Right Rear piping

How to keep the cover

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.)

Install the indoor unit

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.

Secure the Indoor Unit

Right and Right Bottom piping

Insert the connection cable

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

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.

 marking

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

 

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

36 

 

•

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

55mm (1/2 ~ 1.75HP)

Piping

Cable

Apply putty or 
caulking material 
to seal the wall 
opening.

Connection cable

Piping

More than 

470 mm

More than 950mm 

(1/2 ~ 1.75HP)

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

Cable

45°

Drain hose

Piping

Sleeve for piping hole

Drain hose

Piping

Connection cable

More than 950mm 
(1/2 ~ 1.75HP)

(For the right piping, follow the 
same procedure)

Exchange the drain hose and 
the cap

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 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 m or less. 

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. 

 

Terminals on the outdoor unit

L

N

1

2

3

Colour of wires

Terminals on the indoor unit

1

2

3

Recommended 
length (mm)

a

b

c

d

35 35 35 55

Recommended 

length (mm)

Tape

Connection cable

Indoor & outdoor 

Connection cable 

Escapement

Terminal 

Board

Earth Wire longer 
than others AC 
wires for safety 
reason

Outdoor unit

Indoor & outdoor 

Connection cable 

Holder

 

 

 This equipment must be properly earthed.