1. Precaution ..................................................................................................................................................... 1
1.1 Safety Precaution .......................................................................................................................... 1
1.2 Warning .......................................................................................................................................... 1
2. Part Names .................................................................................................................................................... 4
2.1 Model Names of Indoor/Outdoor units .......................................................................................... 4
2.2 Part names of Indoor/Outdoor units .............................................................................................. 5
3. Dimension ..................................................................................................................................................... 6
3.1 Indoor Unit ..................................................................................................................................... 6
3.2 Outdoor Unit................................................................................................................................... 8
4. Refrigerant Cycle Diagram .......................................................................................................................... 9
5. Printed Circuit Board Connector Wiring Diagram of Outdoor unit ....................................................... 10
6 Installation Details....................................................................................................................................... 12
6.1 Wrench torque sheet for installation ............................................................................................ 12
6.2 Connecting the cables ................................................................................................................. 12
6.3 Pipe length and the elevation ...................................................................................................... 12
6.4 Installation for the first time .......................................................................................................... 13
6.5 Adding the refrigerant after running the system for many years ................................................. 14
6.6
Procedure when servicing the indoor unit refrigeration circuit.
.................................................. 14
6.7
Evacuation after servicing the outdoor unit refrigeration circuit.
................................................ 16
7. Operation Characteristics ......................................................................................................................... 18
8. Electronic function ..................................................................................................................................... 19
8.1 Abbreviation ................................................................................................................................. 19
8.2 Display function ........................................................................................................................... 19
8.3 Main Protection ............................................................................................................................ 20
8.4 Operation Modes and Functions ................................................................................................. 21
9. Troubleshooting ......................................................................................................................................... 26
9.1 Indoor Unit Error Display ............................................................................................................. 27
9.2 Outdoor unit error display ............................................................................................................ 28
9.3 Diagnosis and Solution ................................................................................................................ 31
10 Disassembly Instructions ......................................................................................................................... 56
10.1 Indoor unit .................................................................................................................................. 56
10.2 Outdoor unit ............................................................................................................................... 60
Table Of
C
ontents
Summary of Contents for MSMBB-12CRDN1-MP0W
Page 7: ...5 2 2 Part names of Indoor Outdoor units ...
Page 9: ...7 For MSMBB 12CRDN1 MP0W For MSMBC 18CRDN1 MP0W For MSMBD 22CRDN1 MP5W ...
Page 13: ...11 MOF1 22CDN1 MP5W ...
Page 25: ...23 ...
Page 32: ...30 MOF1 22CDN1 MP5W ...
Page 36: ...34 9 2 3 Zero crossing detection error diagnosis and solution E2 ...
Page 39: ...37 supply or 50V 115V power supply the PCB must has problems and need to be replaced ...
Page 45: ...43 P W N U ...
Page 46: ...44 N V N W ...