12 
3. Specifications 
Model 
Indoor  CS-TZ20ZKEW  CS-TZ25ZKEW 
Outdoor  CU-TZ20ZKE  CU-TZ25ZKE 
Performance Test Condition  EUROVENT  EUROVENT 
Power Supply 
Phase, Hz  Single, 50  Single, 50 
V  230  230 
Min.  Mid.  Max.  Min.  Mid.  Max. 
Cooling 
Capacity 
kW  0.75  2.00  2.50  0.85  2.50  3.00 
BTU/h  2560  6820  8530  2900  8530  10200 
kcal/h  650  1720  2150  730  2150  2580 
Running Current  A  –  2.20  –  –  2.90  – 
Input Power  W  180  490  640  210  650  880 
Annual Consumption  kWh  –  245  –  –  325  – 
EER 
W/W  4.17  4.08  3.91  4.05  3.85  3.41 
BTU/hW  14.22  13.92  13.33  13.81  13.12  11.59 
kcal/hW  3.61  3.51  3.36  3.48  3.31  2.93 
ErP 
Pdesign  kW  2.0  2.5 
SEER  (W/W)  7.0  7.1 
Annual 
Consumption 
kWh  100  123 
Class  A++  A++ 
Power Factor  %  –  97  –  –  97  – 
Indoor Noise (H / L / QLo) 
Pressure Level 
(dB(A) 
37 / 25 / 20  40 / 26 / 20 
Power Level dB  53 / – / –  56 / – / – 
Outdoor Noise (H / L) 
Pressure Level 
(dB(A) 
46 / –  47 / – 
Power Level dB  61 / –  62 / – 
Heating 
Capacity 
kW  0.70  2.70  3.60  0.80  3.30  4.10 
BTU/h  2390  9210  12300  2730  11300  14000 
kcal/h  600  2320  3100  690  2840  3530 
Running Current  A  –  2.90  –  –  3.50  – 
Input Power  W  165  650  1.02k  190  790  1.12k 
COP 
W/W  4.24  4.15  3.53  4.21  4.18  3.66 
BTU/hW  14.48  14.17  12.06  14.37  14.30  12.50 
kcal/hW  3.64  3.57  3.04  3.63  3.59  3.15 
ErP 
Pdesign  kW  2.1  2.4 
Tbivalent  °C  -10  -10 
SCOP  (W/W)  4.6  4.6 
Annual 
Consumption 
kWh  639  730 
Class  A++  A++ 
Power Factor  %  –  97  –  –  98  – 
Indoor Noise (H / L / QLo) 
Pressure Level 
(dB(A) 
38 / 26 / 22  40 / 27 / 22 
Power Level dB  54 / – / –  56 / – / – 
Outdoor Noise (H / L) 
Pressure Level 
(dB(A) 
47 / –  48 / – 
Power Level dB  62 / –  63 / – 
Low Temp. : Capacity (kW) / I.Power (W) / COP  2.61 / 900 / 2.90  2.97 / 990 / 3.00 
Extr Low Temp. : Capacity (kW) / I.Power (W) / COP  2.14 / 840 / 2.55  2.70 / 1.01k / 2.67 
Max Current (A) / Max Input Power (W)  4.5 / 1.02k  4.9 / 1.12k 
Starting Current (A)  2.90  3.50