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CONTENTS

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

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

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

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

3. Dimension .................................................................................................................................................... 7

3.1 Indoor Unit ..................................................................................................................................... 7

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

4. Refrigerant Cycle Diagram ....................................................................................................................... 13

5 Installation Details ...................................................................................................................................... 14

5.1 Wrench torque sheet for installation ........................................................................................... 14

5.2 Connecting the cables ................................................................................................................ 14

5.3 Pipe length and the elevation ..................................................................................................... 15

5.4 Installation for the first time ......................................................................................................... 16

5.5 Adding the refrigerant after running the system for many years ................................................ 17

5.6 Re-installation while the indoor unit need to be repaired ........................................................... 18

5.7 Re-installation while the outdoor unit need to be repaired ......................................................... 19

6. Operation Characteristics ......................................................................................................................... 21

7. Electronic function .................................................................................................................................... 22

7.1 Abbreviation ................................................................................................................................ 22

7.2 Display function ........................................................................................................................... 22

7.3 Main Protection ........................................................................................................................... 23

7.4 Operation Modes and Functions ................................................................................................. 24

8. Troubleshooting ......................................................................................................................................... 28

8.1 Indoor Unit Error Display ............................................................................................................. 29

8.2 Trouble shooting.......................................................................................................................... 30

Brand	Midea
Model	MSMBBU-12HRFN1-QRD0GW
Category	Air Conditioner
Language	English

Midea MSMBBU-12HRFN1-QRD0GW User Manual

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Midea MSMBBU-12HRFN1-QRD0GW Specifications

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