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17 

  Multi Split Combination Possibility: 

o  A single outdoor unit enables air conditioning of up to three separate rooms for CU-3E18PBE. 
o  A single outdoor unit enables air conditioning of up to four separate rooms for CU-4E23PBE, CU-4E27PBE. 
o  A single outdoor unit enables air conditioning of up to five separate rooms for CU-5E34PBE. 

 

CONNECTABLE INDOOR UNIT CU-3E18PBE*  CU-4E23PBE* 

CU-4E27PBE* 

CU-5E34PBE* 

ROOM 

A  B  C  A B C D A B C D A B C D E 

Wall

 

2.0kW CS-TZ20TKEW-1  ● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

2.5kW CS-TZ25TKEW-1  ● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

3.5kW CS-TZ35TKEW-1  ● 

● – ● 

● 

● – ● 

● 

● – ● 

● 

● 

● 

● 

4.2kW CS-TZ42TKEW-1  ● 

● – ● 

● – – ● 

● 

● – ● 

● 

● 

● – 

Capacity range of connectable units  From 4.5kW to 9.0kW From 4.5kW to 11.0kW

From 4.5kW to 13.6kW 

From 4.5kW to 17.5kW 

Pipe length 

1 room maximum pipe length (m)

25 

25 

25 

25 

Allowable elevation (m) 

15 

15 

15 

15 

Total allowable pipe length (m) 

50 

60 

70 

80 

Total pipe length for maximum 

chargeless length (m) 

30 30  45 

45 

Additional gas amount over 

chargeless length (g/m) 

20 20  20 

20 

Note: “●” : Available 

1. 

The total nominal cooling capacity of indoor unit that will be connected to outdoor unit must be within connectable capacity range of indoor
unit. (as shown in the table above) 
Example: The indoor units’ combination below is possible to connect to CU-4E27PBE. (Total nominal capacity of indoor units is between 
4.5kW to 13.6kW) 
1) Two CS-TZ25TKEW-1 only. (Total nominal cooling capacity is 5.0kW) 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

18 

 
  Inverter Technology 

o  Wider output power range 
o Energy 

saving 

o Quick 

Cooling 

o Quick 

Heating 

o  More precise temperature control 

 
  Environment Protection 

o  Non-ozone depletion substances refrigerant (R32) 

 
  Long Installation Piping 

o  Long piping up to 15 meters during single split connection only 

 
  Easy to use remote control 
 
  Quality Improvement 

o  Random auto restart after power failure for safety restart operation 
o Gas 

leakage 

protection 

o  Prevent compressor reverse cycle 
o  Inner protector to protect compressor 
o  Noise prevention during soft dry operation 

 

  Operation Improvement 

o  Quiet mode to reduce the indoor unit operating sound 
o  Powerful mode to reach the desired room temperature quickly 
o  24-hour timer setting 

 
  Serviceability Feature 

o  Breakdown Self Diagnosis function 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

19 

 

Aluminium Fin 

Auto OFF/ON button

• Use when remote control is misplaced

or malfunction occurs.

Air Filters

Front panel

Remote Control
receiver

Vertical Airflow
direction louver
• Do not adjust by hand.

Horizontal Airflow
direction louver
• Manually adjustable.

TIMER

POWER

Air Purifying Filter

 

 

 

Timer setting

Airflow direction
selection

Fan speed selection

Transmitter

Operation mode

Sleep mode operation

Powerful/Quiet

operation

Remote control

display

Clock setting

OFF/ON

Check

Temperature setting

 

 
 
 
 

20 

 

16.4

264.6

Unit: mm

B

A

C

496.6

128

184

222

128

Right
piping
hole

Left
piping
hole

Installation
plate

Indoor unit
external
dimensions
line

420

380

45

95

<Top View>

<Front View>

<Bottom View>

<Rear View>

Relative position between the indoor unit and the installation plate <Front View>

<Side View>

<Side View>

87

64

22

<Remote Control Holder>

<Remote Control>

144.5

59

799

92.8

60

60

55

410

41-61

Gas side

Liquid side

Air intake
direction

Air outlet
direction

Left piping
hole

290

197

Right piping
hole

60

41