Midea MO11D-07HN1 [2/56] Contents

Neola On-off DM12-01.01.07en

2 Service manual

CONTENTS

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

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

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

2. Function ................................................................................................................................................. 8

3. Specification ......................................................................................................................................... 11

7.1 Indoor Units ................................................................................................................................. 26

7.2 Outdoor Units .............................................................................................................................. 28

8. Installation details .................................................................................................................................30

8.1 Wrench torque sheet for installation ........................................................................................... 30

8.2 Connecting the cables ................................................................................................................ 30

8.3 Pipe length and the elevation ..................................................................................................... 31

8.4 Installation for the first time ......................................................................................................... 31

8.5 Adding the refrigerant after running the system for many years ................................................ 35

8.6 Re-installation while the indoor unit need to be repaired ........................................................... 36

8.7 Re-installation while the outdoor unit need to be repaired ......................................................... 38

11. Troubleshooting ..................................................................................................................................51

11.1 Indoor unit error display ............................................................................................................ 51

11.2 Diagnosis and Solution ............................................................................................................. 52