Midea MSMA1A-07HRN1 / MOAB02-07HN1 [2/59] Contents

Blanc On-off DM16-01.01.07en

2 Service manual

CONTENTS

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

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

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

2. Function ........................................................................................................................................................ 6

3. Specification ................................................................................................................................................ 7

4. Dimension ................................................................................................................................................... 11

4.1 Indoor Unit ................................................................................................................................. 11

4.2 Outdoor Unit .............................................................................................................................. 15

5. Capacity tables ........................................................................................................................................... 19

6. Refrigerant Cycle Diagram ....................................................................................................................... 24

7. Installation Details ..................................................................................................................................... 25

7.1 Wrench torque sheet for installation .......................................................................................... 25

7.2 Connecting the cables ............................................................................................................... 25

7.3 Pipe length and the elevation .................................................................................................... 26

7.4 Installation for the first time........................................................................................................ 27

7.5 Adding the refrigerant after running the system for many years ................................................ 29

7.6 Re-installation while the indoor unit need to be repaired ........................................................... 30

7.7 Re-installation while the outdoor unit need to be repaired ......................................................... 31

8. Wiring Diagram .......................................................................................................................................... 33

8.1 Indoor Unit ................................................................................................................................. 33

8.2 Outdoor Unit .............................................................................................................................. 35

9. Operation Characteristics ......................................................................................................................... 37

10. Electronic function .................................................................................................................................. 38

10.1 Abbreviation ............................................................................................................................ 38

10.2 Display function ....................................................................................................................... 38

10.3 Main Protection ....................................................................................................................... 40

10.4 Operation Modes and Functions ............................................................................................. 40

11. Troubleshooting ....................................................................................................................................... 48

11.1 Indoor Unit Error Display ......................................................................................................... 48

11.2 Trouble shooting ...................................................................................................................... 49

Midea MSMA1A-07HRN1 / MOAB02-07HN1 [2/59] Contents

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