9 
Indoor CS-S28MKQ 
Model 
Outdoor CU-S28MKQ 
Performance Test Condition  JIS 
Phase, Hz  Single, 60 
Power Supply 
V 220  230 
    Min.  Mid. Max. Min.  Mid. Max. 
kW  1.15 7.80 8.40 1.15 7.80 8.40 
BTU/h  3920 26600 28600 3920 26600 28600 
Capacity 
kJ/h  4140 28080 30240 4140 28080 30240 
Running Current  A  - 12.6 -  - 12.2 - 
Input Power  W  350 2.70k 2.95k 350 2.70k 2.95k 
W/W  3.29 2.89 2.85 3.29 2.89 2.85 
BTU/hW 11.20 9.85  9.69 11.20 9.85  9.69 
EER 
kJ/hW  11.83 10.40 10.25 11.83 10.40 10.25 
Power Factor  %  - 97 -  - 96 - 
dB-A  49 / 38 / 35  49 / 38 / 35 
Indoor Noise (H / L / QLo) 
Power Level dB  -  - 
dB-A  53 / - / -  53 / - / - 
Cooling 
Outdoor Noise (H / L) 
Power Level dB  -  - 
Max Current (A) / Max Input Power (W)  14.6 / 3.26k 
Starting Current (A)  12.6 
Type   Hermetic Motor 
Motor Type    Brushless (4 poles)  
Compressor 
Output Power  W  1.70k 
Type   Cross-Flow Fan 
Material   ASG20K1 
Motor Type    Transistor (8-poles) 
Input Power  W  94.8 
Output Power  W  40 
QLo rpm  950 
Lo rpm  1050 
Me rpm  1300 
Hi rpm  1540 
Indoor Fan 
Speed 
SHi rpm  1600 
Type   Propeller Fan 
Material   PP Resin 
Motor Type    Induction (6-poles) 
Input Power  W  - 
Output Power  W  62 
Me rpm  - 
Outdoor Fan 
Speed 
Hi  rpm  660 - 680 
Moisture Removal  L/h (Pt/h)  4.6 (9.7) 
QLo m
3
/min (ft
3
/min) 10.9 (385) 
Lo m
3
/min (ft
3
/min) 12.5 (441) 
Me m
3
/min (ft
3
/min) 16.3 (576) 
Hi m
3
/min (ft
3
/min) 20.4 (720) 
Indoor Airflow 
SHi m
3
/min (ft
3
/min) 21.4 (756) 
Outdoor Airflow  Hi  m
3
/min (ft
3
/min)  51.8 (1830)  53.5 (1890)