Midea 11MSFI-A2-1301

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 .......................................................................................................................................... 13
5.1 Indoor Unit ................................................................................................................................... 13
5.2 Outdoor Unit ................................................................................................................................ 14
6 Installation Details ...................................................................................................................................... 15
6.1 Wrench torque sheet for installation ........................................................................................... 15
6.2 Connecting the cables ................................................................................................................ 15
6.3 Pipe length and the elevation ..................................................................................................... 16
6.4 Installation for the first time ......................................................................................................... 17
6.5 Adding the refrigerant after running the system for many years ................................................ 20
6.6 Re-installation while the indoor unit need to be repaired ........................................................... 21
6.7 Re-installation while the outdoor unit need to be repaired ......................................................... 23
7. Operation Characteristics ......................................................................................................................... 26
8. Electronic function .................................................................................................................................... 27
8.1 Abbreviation ................................................................................................................................ 27
8.2 Display function ........................................................................................................................... 27
8.3 Main Protection ........................................................................................................................... 28
8.4 Operation Modes and Functions ................................................................................................. 30
9. Troubleshooting ......................................................................................................................................... 46
9.1 Indoor Unit Error Display ............................................................................................................. 46
9.2 Diagnosis and Solution ............................................................................................................... 47