Table Of Contents - Midea MSMBB-12CRDN1-MP0W Service Manual

Mission mini split 3d dc inverter air conditioner

Table of Contents

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 Contents