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13 

Compressor 

Type  

Hermetic 

Motor 

(Rotary) 

Motor Type 

 

Brushless (4 poles) 

Output Power 

W 

1.70k 

Indoor Fan

 

Type  

Cross-Flow 

Fan 

Material  

ASG33 

Motor Type 

 

DC / Transistor (8-poles) 

Input Power 

W 

89.0 

Output Power 

W 

40 

Speed 

QLo 

Cool rpm 

800 

Heat rpm 

860 

Lo 

Cool rpm 

850 

Heat rpm 

960 

Me 

Cool rpm 

1020 

Heat rpm 

1100 

Hi 

Cool rpm 

1200 

Heat rpm 

1240 

SHi 

Cool rpm 

1250 

Heat rpm 

1290 

Outdoo

r Fa

n

 

Type  

Propeller 

Fan 

Material  

PP 

Motor Type 

 

DC (8-poles) 

Input Power 

W 

– 

Output Power 

W 

40 

Speed Hi 

Cool rpm 

820 

Heat rpm 

880 

Moisture Removal 

L/h (Pt/h) 

4.1 (8.7) 

Indoor 

Airflow 

QLo 

Cool m

3

/min (ft

3

/min) 13.21 

(466) 

Heat m

3

/min (ft

3

/min) 14.42 

(509) 

Lo 

Cool m

3

/min (ft

3

/min) 14.22 

(502) 

Heat m

3

/min (ft

3

/min) 16.43 

(580) 

Me 

Cool m

3

/min (ft

3

/min) 17.63 

(622) 

Heat m

3

/min (ft

3

/min) 19.24 

(679) 

Hi 

Cool m

3

/min (ft

3

/min) 20.00 

(706) 

Heat m

3

/min (ft

3

/min) 22.00 

(776) 

SHi 

Cool m

3

/min (ft

3

/min) 22.26 

(786) 

Heat m

3

/min (ft

3

/min) 23.06 

(814) 

Outdoor 

Airflow 

Hi 

Cool m

3

/min (ft

3

/min) 44.7 

(1580) 

Heat m

3

/min (ft

3

/min) 48.1 

(1700) 

Refrigeration 

Cycle 

Control Device 

 

Expansion Valve 

Refrigerant Oil 

cm

3

 FW50S 

(800) 

Refrigerant Type 

g (oz) 

R32, 1.32k (46.6) 

F-Gas 

GWP 675 

CO2eq (ton) 

(Precharged Amount /  

Maximum Charged Amount) 

0.891 / 1.229 

Dimension 

Height (I/D / O/D) 

mm (inch) 

302 (11-29/32) / 619 (24-3/8) 

Width (I/D / O/D) 

mm (inch) 

1102 (43-13/32) / 824 (32-15/32) 

Depth (I/D / O/D) 

mm (inch) 

244 (9-5/8) / 299 (11-25/32) 

Weight 

Net (I/D / O/D) 

kg (lb) 

13 (29) / 49 (108) 

14 

Piping 

Pipe Diameter (Liquid / Gas) 

mm (inch) 

6.35 (1/4) / 15.88 (5/8) 

Standard length 

m (ft) 

5.0 (16.4) 

Length range (min – max) 

m (ft) 

3 (9.8) ~ 30 (98.4) 

I/D & O/D Height different 

m (ft) 

20.0 (65.6) 

Additional Gas Amount 

g/m (oz/ft) 

25 (0.3) 

Length for Additional Gas 

m (ft) 

10 (32.8) 

Drain Hose 

Inner Diameter 

mm  

16.7 

Length mm 

650 

Indoor Heat 

Exchanger 

Fin Material 

 

Aluminium (Pre Coat) 

Fin Type 

 

Slit Fin 

Row × Stage × FPI 

 

2 × 17 × 21, Sub EVA: 1 × 4 × 21 

Size (W × H × L) 

mm 

836.5 × 357 × 25.4, Sub EVA: 836.5 × 94.8 × 12.7 

Outdoor 

Heat 

Exchanger 

Fin Material 

 

Aluminium 

Fin Type 

 

Corrugated Fin 

Row × Stage × FPI 

 

2 × 31 × 19 

Size (W × H × L) 

mm 

36.4 × 651 × 904.5:874.5 

Air Filter 

Material  

Polypropelene 

Type  

One-touch 

Power Supply 

 

Outdoor 

Power Supply Cord 

A 

Nil 

Thermostat  

Electronic 

Contol 

Protection Device 

 

Electronic Contol 

 

Dry Bulb 

Wet Bulb 

Indoor 

Operation 

Range 

Cooling 

Maximum °C 

32 

23 

Minimum °C 

16 

11 

Heating 

Maximum °C 

30 

– 

Minimum °C 

16 

– 

Outdoor 

Operation 

Range 

Cooling 

Maximum °C 

43 

26 

Minimum °C 

-10 

– 

Heating 

Maximum °C 

24 

18 

Minimum °C 

-15 

-16 

 
1. 

Cooling capacities are based on indoor temperature of 27°C Dry Bulb (80.6°F Dry Bulb), 19.0°C Wet Bulb (66.2°F Wet Bulb) and outdoor air 
temperature of 35°C DRY BULB (95°F Dry Bulb), 24°C Wet Bulb (75.2°F Wet Bulb) 

2. 

Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor air temperature of 7°C Dry Bulb (44.6°F 
Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb) 

3. 

Heating low temperature capacity, Input Power and COP measured at 230 V, indoor temperature 20°C, outdoor 2/1°C 

4. 

Heating extreme low temperature capacity, Input Power and COP measured at 230 V, indoor temperature 20°C, outdoor -7/-8°C 

5. 

Standby power consumption ≤10.0w (when switched OFF by remote control, except under self protection control). 

6. 

Specifications are subjected to change without prior notice for further improvement. 

 
 
 
 
 
 
 
 
 
 
 
 
 

15 

  Multi Split Combination Possibility: 

o  A single outdoor unit enables air conditioning of up to two separate rooms for CU-2RE15SBE,  

CU-2RE18SBE. 

o  A single outdoor unit enables air conditioning of up to three separate rooms for CU-3RE18SBE. 

 

CONNECTABLE INDOOR UNIT 

OUTDOOR UNIT 

CU-2RE15SBE* CU-2RE18SBE* 

CU-3RE18SBE* 

TYPE 

A B A B A B C 

Wall

 

1.6kW CS-MTZ16TKE 

● 

● 

● 

● 

● 

● 

● 

2.0kW CS-TZ20TKEW 

● 

● 

● 

● 

● 

● 

● 

2.5kW CS-TZ25TKEW 

● 

● 

● 

● 

● 

● 

● 

3.5kW CS-TZ35TKEW 

● 

● 

● 

● 

● 

● 

● 

4.2kW CS-TZ42TKEW 

– 

– 

● 

● 

● 

● 

● 

5.0kW CS-TZ50TKEW 

– 

– 

● 

● 

● 

● 

● 

Capacity range of 

connectable indoor units 

From 4.0kW to 5.7kW 

From 4.0kW to 7.5kW 

From 4.5kW to 9.0kW 

Pipe length 

1 room maximum pipe length (m) 

20 

20 

25 

Allowable elevation (m) 

10 

10 

15 

Total allowable pipe length (m) 

30 

30 

50 

Total pipe length for maximum 

chargeless length (m) 

20 20 

30 

Additional gas amount over 

chargeless length (g/m) 

15 15 

20 

Note: “●” : Available 

Remarks for CU-2RE15SBE / CU-2RE18SBE 
1.  The total nominal cooling capacity of indoor units 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-2RE15SBE. (Total nominal capacity of indoor units is between 
4.0kW to 5.7kW) 
1) Two CS-TZ20TKEW only. (Total nominal cooling capacity is 4.0kW) 

Remarks for CU-3RE18SBE 
1.  The total nominal cooling capacity of indoor units 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-3RE18SBE. (Total nominal capacity of indoor units is between 
4.5kW to 9.0kW) 
1) Two CS-TZ25TKEW only. (Total nominal cooling capacity is 5.0kW) 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

16 

  Multi Split Combination Possibility: 

o  A single outdoor unit enables air conditioning of up to two separate rooms for CU-2E12SBE, CU-2E15SBE, 

CU-2E18SBE. 

o  A single outdoor unit enables air conditioning of up to three separate rooms for CU-3E23SBE. 

 

CONNECTABLE INDOOR UNIT CU-2E12SBE* CU-2E15SBE* CU-2E18SBE* 

CU-3E23SBE* 

ROOM 

A B A B A B A B C 

Wall

 

1.6kW CS-MTZ16TKE  ● 

● 

● 

● 

● 

● 

● 

● 

● 

2.0kW CS-TZ20TKEW  ● 

● 

● 

● 

● 

● 

● 

● 

● 

2.5kW CS-TZ25TKEW  ● 

● 

● 

● 

● 

● 

● 

● 

● 

3.5kW CS-TZ35TKEW  ● 

● 

● 

● 

● 

● 

● 

● 

● 

4.2kW 

CS-TZ42TKEW – – – – ● 

● 

● 

● 

● 

5.0kW 

CS-TZ50TKEW – – – – ● 

● 

● 

● 

● 

6.0kW 

CS-TZ60TKEW – – – – – – ● 

● 

● 

Capacity range of connectable units 

From 3.2kW to 5.7kW From 3.2kW to 5.7kW From 3.2kW to 7.5kW

From 4.5kW to 11.0kW 

Pipe length 

1 room maximum pipe length (m) 

20 

20 

20 

25 

Allowable elevation (m) 

10 

10 

10 

15 

Total allowable pipe length (m) 

30 

30 

30 

60 

Total pipe length for maximum 

chargeless length (m) 

20 20 20 

30 

Additional gas amount over 

chargeless length (g/m) 

15 15 15 

20 

Note: “●” : Available 

Remarks for CU-2E12SBE / CU-2E15SBE / CU-2E18SBE 
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-2E15SBE. (Total nominal capacity of indoor units is between 
3.2kW to 5.7kW) 
1) Two CS-TZ20TKEW only. (Total nominal cooling capacity is 4.0kW) 

Remarks for CU-3E23SBE 
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-3E23SBE. (Total nominal capacity of indoor units is between 
4.5kW to 11.0kW) 
1) Two CS-TZ25TKEW only. (Total nominal cooling capacity is 5.0kW)