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9 

CAUTION 

11. 

Labelling 

 

Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. 

 

The label shall be dated and signed. 

 

Ensure that there are labels on the equipment stating the equipment contains flammable refrigerant. 

12. 

Recovery 

 

When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all 
refrigerants are removed safely. 

 

When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. 

 

Ensure that the correct number of cylinders for holding the total system charge are available. 

 

All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant (i.e. special cylinders for the 
recovery of refrigerant). 

 

Cylinders shall be complete with pressure relief valve and associated shut-off valves in good working order. 

 

Recovery cylinders are evacuated and, if possible, cooled before recovery occurs. 

 

The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall 
be suitable for the recovery of flammable refrigerants. 

 

In addition, a set of calibrated weighing scales shall be available and in good working order. 

 

Hoses shall be complete with leak-free disconnect couplings and in good condition. 

 

Before using the recovery machine, check that it is in satisfactory working order, has been properly maintained and that any 
associated electrical components are sealed to prevent ignition in the event of a refrigerant release. 
Consult manufacturer if in doubt. 

 

The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery cylinder, and the relevant Waste 
Transfer Note arranged. 

 

Do not mix refrigerants in recovery units and especially not in cylinders. 

 

If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make certain 
that flammable refrigerant does not remain within the lubricant. 

 

The evacuation process shall be carried out prior to returning the compressor to the suppliers. 

 

Only electric heating to the compressor body shall be employed to accelerate this process. 

 

When oil is drained from a system, it shall be carried out safely. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

10 

Performance Test Condition 

EUROVENT 

Power Supply 

Phase, Hz 

Single, 50 

V 230 

 Min. 

Mid. 

Max. 

Cooling 

Capacity 

kW 1.80  2.00  2.90 

BTU/h 6140 

6820 

9890 

Running Current 

A 

– 

2.70 

– 

Input Power 

W 

340 

550 

860 

Annual Consumption 

kWh 

– 

275 

– 

EER W/W 

5.29  3.64  3.37 

Indoor Noise (H / L / QLo) 

dB-A 

34 / 29 / 26 

Power Level dB 

50 / – / – 

Heating

 

Capacity 

kW 1.20  3.20  4.10 

BTU/h 4090 

10900  14000 

Running Current 

A 

– 

4.10 

– 

Input Power 

W 

300 

840 

1.33k 

COP W/W 

4.00  3.81  3.08 

Indoor Noise (H / L / QLo) 

dB-A 

36 / 29 / 26 

Power Level dB 

52 / – / – 

Indoor Fan

 

Type  

SIROCCO 

Material  

GFZ010A 

/ 

GF20 

Motor Type 

 

DC / Transistor (8-poles) 

Input Power 

W 

– 

Output Power 

W 

51 

Speed 

QLo 

Cool rpm 

800 

Heat rpm 

790 

Lo 

Cool rpm 

880 

Heat rpm 

860 

Me 

Cool rpm 

970 

Heat rpm 

960 

Hi 

Cool rpm 

1070 

Heat rpm 

1070 

SHi 

Cool rpm 

1120 

Heat rpm 

1120 

Moisture Removal 

L/h (Pt/h) 

1.3 (2.7) 

Indoor 

Airflow 

QLo 

Cool m

3

/min (ft

3

/min.) 7.3 

(260) 

Heat m

3

/min (ft

3

/min.) 7.2 

(250) 

Lo 

Cool m

3

/min (ft

3

/min.) 8.2 

(290) 

Heat m

3

/min (ft

3

/min.) 7.9 

(280) 

Me 

Cool m

3

/min (ft

3

/min.) 9.0 

(320) 

Heat m

3

/min (ft

3

/min.) 8.9 

(310) 

Hi 

Cool m

3

/min (ft

3

/min.) 10.1 

(355) 

Heat m

3

/min (ft

3

/min.) 10.1 

(355) 

SHi 

Cool m

3

/min (ft

3

/min.) 10.5 

(370) 

Heat m

3

/min (ft

3

/min.) 10.5 

(370) 

Dimension 

Height (I/D) 

mm (inch) 

200 (7-7/8) 

Width (I/D) 

mm (inch) 

750 (29-17/32) 

Depth (I/D) 

mm (inch) 

640 (25-7/32) 

11 

Weight 

Net (I/D) 

kg (lb) 

19 (42) 

Piping 

Pipe Diameter  

(Liquid / Gas) 

mm (inch) 

6.35 (1/4) / 9.52 (3/8) 

Drain Hose 

Inner Diameter 

mm  

16 

Length mm 

117.5 

Indoor Heat 

Exchanger 

Fin Material 

 

Aluminium (Pre Coat) 

Fin Type 

 

Slit Fin 

Row × Stage × FPI 

 

3 × 12 × 18 

Size (W × H × L) 

mm 

590 × 282 × 38.1 

Air Filter 

Material  

– 

Type  

– 

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 

– 

 
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. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

12 

  Multi Split Combination Possibility: 

o  A single outdoor unit enables air conditioning of up to two separate rooms for CU-2Z35TBE, CU-2Z41TBE, 

CU-2Z50TBE. 

o  A single outdoor unit enables air conditioning of up to three separate rooms for CU-3Z68TBE, CU-3Z52TBE. 

 

CONNECTABLE INDOOR UNIT  CU-2Z35TBE CU-2Z41TBE CU-2Z50TBE 

CU-3Z68TBE 

CU-3Z52TBE 

ROOM 

A B A B A B A B C A B C 

Wall

 

2.0kW CS-MZ20UD3EA  ● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

2.5kW CS-Z25UD3EAW  ● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

● 

3.5kW CS-Z35UD3EAW  ● – ● – ● 

● 

● 

● 

● 

● 

● – 

5.0kW CS-Z50UD3EAW – – – – ● – ● 

● – ● – – 

6.0kW CS-Z60UD3EAW – – – – – – ● – – – – – 

Capacity range of connectable units 

From 3.2kW to 

6.0kW 

From 3.2kW to 

6.0kW 

From 3.2kW to 

7.7kW 

From 4.5kW to 11.2kW 

From 4.5kW to 9.5kW 

Pipe length 

1 room maximum pipe length (m) 

20 

20 

20 

25 

25 

Allowable elevation (m) 

10 

10 

10 

15 

15 

Total allowable pipe length (m) 

30 

30 

30 

60 

50 

Total pipe length for maximum 

chargeless length (m) 

20 20 20 

30 

30 

Additional gas amount over 

chargeless length (g/m) 

15 15 15 

20 

20 

Note: “●” : Available 

Remarks for CU-2Z35TBE / CU-2Z41TBE / CU-2Z50TBE 
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-2Z41TBE. (Total nominal capacity of indoor units is between 
3.2kW to 6.0kW) 
1) Two CS-MZ20UD3EA only. (Total nominal cooling capacity is 4.0kW) 

Remarks for CU-3Z68TBE / CU-3Z52TBE 
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-3Z68TBE. (Total nominal capacity of indoor units is between 
4.5kW to 11.2kW) 
1) Two CS-Z25UD3EAW only. (Total nominal cooling capacity is 5.0kW)