Content 
2 
 
 
 
 
Content 
 
 
1.  Precaution .......................................................................................................................... 1 
1.1  Safety Precaution .............................................................................................................................. 1 
1.2  Warning ............................................................................................................................................. 1 
2.  Function.............................................................................................................................. 3 
3.  Dimension........................................................................................................................... 5 
3.1  Indoor unit(Alfa) ............................................................................................................................ 5 
3.2  Outdoor unit(Alfa).......................................................................................................................... 5 
3.3  Indoor unit(Corona)....................................................................................................................... 6 
3.4  Outdoor unit(Corona) .................................................................................................................... 6 
3.5  Indoor unit(Inverter Eco) .................................................................................................................... 7 
3.6  Outdoor unit(Inverter Eco) ................................................................................................................. 7 
3.7  Indoor unit(Inverter Star).................................................................................................................... 8 
3.8  Outdoor unit(Inverter Star) ................................................................................................................. 8 
4.  Specification....................................................................................................................... 9 
5.  Refrigerant cycle diagram............................................................................................... 12 
6.  Operation limits................................................................................................................13 
6.1  Cooling operation............................................................................................................................. 13 
6.2  Heating operation ............................................................................................................................ 13 
7.  Schematic diagram and Wiring diagram........................................................................ 14 
7.1.  Schematic diagram .......................................................................................................................... 14 
7.2.  Wiring diagram ................................................................................................................................ 18 
8.  Installation details............................................................................................................23 
8.1  Wrench torque sheet for installation ................................................................................................ 23 
8.2  Connecting the cables ..................................................................................................................... 23 
8.3  Pipe length and the elevation .......................................................................................................... 23 
8.4  Air purging of the piping and indoor unit .......................................................................................... 24 
8.5  Pumping down (Re-installation)....................................................................................................... 25 
8.6  Re-air purging (Re-installation)........................................................................................................ 26 
8.7  Balance refrigerant of the 2-way, 3-way valves................................................................................ 27 
8.8  Evacuation....................................................................................................................................... 28 
8.9  Gas charging ................................................................................................................................... 29 
9.  Pressure table ..................................................................................................................30 
9.1  MSH-18HRIN1................................................................................................................................. 30 
9.2  MSC-18HRIN1................................................................................................................................. 30 
10.  Capacity table................................................................................................................... 31 
10.1  MSH-18HRIN1................................................................................................................................. 31 
10.2  MSC-18HRIN1................................................................................................................................. 32 
10.3  MSG-09HRI ..................................................................................................................................... 33 
10.4  MSG-12HRI ..................................................................................................................................... 33 
10.5  MSG-21HRI ..................................................................................................................................... 34 
10.6  MSG-24HRI ..................................................................................................................................... 34