Specifications  MCAC-UTSM-2008-11 
10  Indoor Units 
2. Specifications 
Model  MCA-12HRN1  MCA-18HRN1 
Code  220042002960  220042001870 
Power supply  V-ph-Hz
220~240-1-50  220~240-1-50 
Cooling 
Capacity  kW  3.2  5.3 
Input  W  1100  1900 
Heating 
Capacity  kW  4  6 
Input  W  1050  1900 
Indoor fan motor 
Model      YDK45-4F  YDK45-4F 
Brand      Welling  Welling 
Input  W  56.7/51.5/44.4  56.7/51.5/44.4 
Capacitor  uF  1.5uF/450V  2.5uF/450V 
Speed(Hi/Mi/Lo)  r/min  930/845/680  930/845/680 
Indoor coil 
Number of rows      2  2 
Tube pitch(a)×row pitch(b)  mm  21×13.37  21×13.37 
Fin spacing  mm  1.4  1.4 
Fin type (code)      Hydrophilic aluminium  Hydrophilic aluminium 
Tube outside dia.and type  mm  φ7 Inner grooved copper tube
φ7 Inner grooved copper tube
Coil length × height × width 
mm  1215×210×26.74  1215×210×26.74 
Number of circuits      5  5 
Indoor air flow (Hi/Mi/Lo)   m
3
/h  680/600/400  860/760/500 
Indoor noise level (sound pressure)  dB(A)  41/38/35  42.5/39.4/35.8 
Indoor unit 
Dimension (W×H×D)(body)
mm  580×254×580  580×254×580 
Packing (W×H×D)(body)  mm  750×340×745  750×340×745 
Dimension (W×H×D)(panel)
mm  650×30×650  650×30×650 
Packing (W×H×D)(panel)  mm  715×115×715  715×115×715 
Net/Gross weight(body)  kg  21/28  21/27 
Net/Gross weight(panel)   kg  3/5  3/5 
Refrigerant type      R410A  R410A 
Design pressure  MPa  4.4/2.6  4.4/2.6 
Refrigerant piping
Liquid side/ Gas side  mm  φ6.4/φ12.7  φ6.4/φ12.7 
Drainage water pipe diameter  mm  ODφ25  ODφ25 
Connection wiring
Power wiring  mm
2
  3×2.5  3×2.5 
Strong electric signal wiring
mm
2
  5×2.5  5×2.5 
Weak electric signal wiring  mm
2
  1-core shield wire 1×0.5  1-core shield wire 1×0.5 
Controller      R11HG/E(standard)  R11HG/E(standard) 
Operation temperature  ℃  17-30  17-30 
 
Notes: 1. Nominal cooling capacities are based on the following conditions: 
Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; 
2. Nominal heating capacities are based on the following conditions: 
Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; 
3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from an anechoic 
room.