13 
Model 
Indoor  CS-TZ20ZKEW  CS-TZ25ZKEW 
Outdoor  CU-TZ20ZKE  CU-TZ25ZKE 
Compressor 
Type  Hermetic Motor (Rotary)  Hermetic Motor (Rotary) 
Motor Type  Synchronous Electric Motor (6 poles)  Synchronous Electric Motor (6 poles) 
Output Power  W  550  550 
Indoor Fan 
Type  Cross-Flow Fan  Cross-Flow Fan 
Material  ASG30  ASG30 
Motor Type  DC (8-poles)  DC (8-poles) 
Input Power  W  43.8  43.8 
Output Power  W  40  40 
Speed 
QLo 
Cool  rpm  550  600 
Heat  rpm  630  660 
Lo 
Cool  rpm  700  730 
Heat  rpm  720  770 
Me 
Cool  rpm  840  930 
Heat  rpm  880  970 
Hi 
Cool  rpm  990  1140 
Heat  rpm  1030  1180 
SHi 
Cool  rpm  1040  1190 
Heat  rpm  1080  1230 
Outdoor Fan 
Type  Propeller Fan  Propeller Fan 
Material  PP  PP 
Motor Type  DC (8-poles)  DC (8-poles) 
Input Power  W  –  – 
Output Power  W  40  40 
Speed  Hi 
Cool  rpm  800  830 
Heat  rpm  800  800 
Moisture Removal  L/h (Pt/h)  1.3 (2.7)  1.5 (3.2) 
Indoor Airflow 
QLo 
Cool  m
3
/min (ft
3
/min)  4.97 (175)  5.30 (187) 
Heat  m
3
/min (ft
3
/min)  5.87 (207)  5.94 (210) 
Lo 
Cool  m
3
/min (ft
3
/min)  6.67 (235)  6.68 (236) 
Heat  m
3
/min (ft
3
/min)  6.90 (244)  7.10 (251) 
Me 
Cool  m
3
/min (ft
3
/min)  8.26 (292)  8.80 (311) 
Heat  m
3
/min (ft
3
/min)  8.71 (308)  9.22 (326) 
Hi 
Cool  m
3
/min (ft
3
/min)  9.90 (350)  11.00 (390) 
Heat  m
3
/min (ft
3
/min)  10.40 (365)  11.50 (405) 
SHi 
Cool  m
3
/min (ft
3
/min)  10.53 (372)  11.56 (408) 
Heat  m
3
/min (ft
3
/min)  10.98 (388)  11.98 (423) 
Outdoor 
Airflow 
Hi 
Cool  m
3
/min (ft
3
/min)  29.70 (1050)  30.00 (1060) 
Heat  m
3
/min (ft
3
/min)  29.70 (1050)  28.90 (1020) 
Refrigeration 
Cycle 
Control Device  Expansion Valve  Expansion Valve 
Refrigerant Oil  cm
3
  FW50S (270)  FW50S (270) 
Refrigerant Type  kg (oz)  R32, 0.52 (18.4)  R32, 0.61 (21.5) 
F-Gas 
GWP  675  675 
CO
2
eq (ton) (Precharged Amount / 
Maximum Charged Amount) 
0.35 / 0.40  0.41 / 0.46 
Dimension 
Height (I/D / O/D)  mm (inch)  290 (11-7/16) / 542 (21-11/32)  290 (11-7/16) / 542 (21-11/32) 
Width (I/D / O/D)  mm (inch)  779 (30-11/16) / 780 (30-23/32)  779 (30-11/16) / 780 (30-23/32) 
Depth (I/D / O/D)  mm (inch)  209 (8-1/4) / 289 (11-13/32)  209 (8-1/4) / 289 (11-13/32) 
Weight  Net (I/D / O/D)  kg (lb)  8 (18) / 24 (53)  8 (18) / 25 (55)