Table Of Contents - Midea 9ASI-A-1209 Service Manual

Luna inverter series

Table of Contents

1. Precaution .................................................................................................................................................... 3

1.1 Safety Precaution ........................................................................................................................ 3

1.2 Warning ....................................................................................................................................... 3

2. Function ........................................................................................................................................................ 7

3. Dimension .................................................................................................................................................... 8

3.1 Indoor Unit ................................................................................................................................... 8

3.2 Outdoor Unit .............................................................................................................................. 10

4. Refrigerant Cycle Diagram ........................................................................................................................ 11

5. Wiring Diagram .......................................................................................................................................... 12

5.1 Indoor Unit ................................................................................................................................. 12

5.2 Outdoor Unit .............................................................................................................................. 14

6 Installation Details ...................................................................................................................................... 16

6.1 Wrench torque sheet for installation .......................................................................................... 16

6.2 Connecting the cables ............................................................................................................... 16

6.3 Pipe length and the elevation .................................................................................................... 17

6.4 Installation for the first time........................................................................................................ 18

6.5 Adding the refrigerant after running the system for many years ................................................ 21

6.6 Re-installation while the indoor unit need to be repaired ........................................................... 22

6.7 Re-installation while the outdoor unit need to be repaired ......................................................... 24

7. Operation Characteristics ......................................................................................................................... 27

8. Electronic function .................................................................................................................................... 28

8.1 Abbreviation .............................................................................................................................. 28

8.2 Display function ......................................................................................................................... 28

8.3 Main Protection ......................................................................................................................... 29

8.4 Operation Modes and Functions ............................................................................................... 32

9. Troubleshooting ......................................................................................................................................... 47

9.1 Indoor Unit Error Display ........................................................................................................... 47

9.2 Diagnosis and Solution .............................................................................................................. 48

CONTENTS