Table Of Contents - Midea MSV1-09HRFN1-MT0W Service Manual

1. Precaution .................................................................................................................................................... 1
1.1 Safety Precaution ................................................................................................................................................ 1
1.2 Warning ............................................................................................................................................................... 1
2. Function........................................................................................................................................................ 4
3. Dimension .................................................................................................................................................... 6
3.1 Indoor Unit........................................................................................................................................................... 6
3.2 Outdoor Unit ........................................................................................................................................................ 7
4. Refrigerant cycle diagram .......................................................................................................................... 8
5. Wiring diagram............................................................................................................................................. 9
5.1 Indoor Unit........................................................................................................................................................... 9
5.2 Outdoor Unit ...................................................................................................................................................... 10
6. Installation details.......................................................................................................................................11
6.1 Tightening Connection....................................................................................................................................... 11
6.2 Connecting the cables ....................................................................................................................................... 11
6.3 Pipe length and the elevation ............................................................................................................................ 11
6.4 Air purging of the piping and indoor unit ............................................................................................................ 12
6.5 Pumping down (Re-installation)......................................................................................................................... 14
6.6 Re-air purging (Re-installation).......................................................................................................................... 15
6.7 Balance refrigerant of the 2-way, 3-way valves ................................................................................................. 16
6.8 Evacuation......................................................................................................................................................... 17
6.9 Gas charging ..................................................................................................................................................... 18
7. Operation characteristics ......................................................................................................................... 19
7.1 MSV1-09HRFN1-MT0W ........................................................................................................................................ 19
7.2 MSV1-12HRFN1-MT0W ........................................................................................................................................ 20
8. Electronic function .................................................................................................................................... 21
8.1 Abbreviation....................................................................................................................................................... 21
8.2 Display function ................................................................................................................................................. 21
8.3 Protection .......................................................................................................................................................... 22
8.4 Fan-Only Mode.................................................................................................................................................. 22
8.5 Cooling Mode .................................................................................................................................................... 23
8.6 Drying mode ...................................................................................................................................................... 24
8.7 Heating mode .................................................................................................................................................... 24
8.8 Auto mode function............................................................................................................................................ 27
8.9 Forced operation function.................................................................................................................................. 28
8.10 Action of 4-way valve....................................................................................................................................... 28
8.11 Two speeds outdoor fan function ..................................................................................................................... 28
8.12 Timer function.................................................................................................................................................. 29
8.13 Sleep function mode........................................................................................................................................ 29
8.14 Auto-Restart function....................................................................................................................................... 29
8.15 Automatic panel function ................................................................................................................................. 30
8.16 Ionizer (Clean Air) function .............................................................................................................................. 30
8.17 Self-clean function.............................................................................................................................................. 30
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