Service manual 
11 
 
 
Inverter star 
Model  MSG-09HRI  MSG-12HRI  MSG-21HRI  MSG-24HRI 
Power supply  Ph-V-Hz  1, 220-240V~, 50Hz 1, 220-240V~, 50Hz
1, 220-240V~, 
50Hz 
1, 220-240V~, 50Hz
Capacity  Btu/h  9000  12000  21000  24000 
Input  W  1080  1380  2450  2700 
Rated current 
  7.2  10.5  14.0  15.1 
Heating 
COP  W/W  2.6  2.5  2.9  2.9 
Model    2PV132N7BC02  2PV132N7BC02  BH240X2CS-20KU  BH240X2CS-20KU
Type    Rotary  Rotary  Rotary  Rotary 
Brand    GD Matsushita  GD Matsushita  MIDEA TOSHIBA  MIDEA TOSHIBA 
Capacity  Btu/h  9500  9500     
Input  W  855  855     
Rated current(RLA) A  5.1  5.1     
Thermal protector    CS-7LN120  CS-7LN120     
Capacitor  uF  No  No  No  No 
Compressor 
Refrigerant oil  ml  450  450  750  750 
Model    RPG13H  RPG20A  YDK36-4G  YDK36-4G 
Brand    Welling  Welling  Welling  Welling 
Input  W  36.5  35  70  70 
Capacitor  uF  1.2  1.0  3.0  3.0 
Indoor  
fan motor 
Speed(hi/mi/lo)  r/min  1100/1020/950  1060/900/800  1150/1050/950  1150/1050/950 
Indoor air flow (Hi/Mi/Lo)  m3/h  500/430/330  540/460/380  1150/1050/950  1150/1050/950 
Indoor noise level (Hi/Mi/Lo)  dB(A)  36/32/26  38/34/28  45/42/39  45/42/39 
Model    YDK20-6G  YDK25-6-3  YDK53-6K  YDK53-6K 
Brand    Welling  Welling  Welling  Welling 
Input  W  70  75     
Capacitor  uF  2.5  2  2.5  2.5 
Outdoor fan 
motor 
Speed  r/min  800  890     
Outdoor noise level  dB(A)  50  53  55  55 
Refrigerant type R22A  g  870  1120  1820  1820 
Liquid side/ Gas side  mm  Ф6.35/Ф9.53  φ6.35/φ12.7  Ф6.35/Ф16  Ф6.35/Ф16 
Max.  pipe length  m  10  10  20  20 
Refrigerant 
piping 
Max.  in level  m  5  5  10  10 
Operation temp  ℃  17-30  17-30  17-30  17-30 
Ambient temp  ℃  -15-45  -15-45  -15-43  -15-43 
Application area  m2  18-24  20-30  35-50  40-56 
 
Note:  
The noise date is base on hemi-anechoic chamber, during actual operation; these values are normally 
somewhat different as a result of ambient condition. 
The above design and specifications are subject to change without prior notice for product improvement.