Midea MSY-09HRDN1-QC8 - Table of Contents

CONTENTS
1. Precaution...........................................................................................................................................1
1.1 Safety Precaution..............................................................................................................................1
1.2 Warning................................................................................................................................................1
2. Function...............................................................................................................................................3
3. Dimension...........................................................................................................................................6
3.1 Indoor Unit...........................................................................................................................................6
3.2 Outdoor Unit.......................................................................................................................................7
4. Specification.......................................................................................................................................9
5. Refrigerant cycle diagram...............................................................................................................10
6. Wiring diagram.................................................................................................................................13
6.1 Indoor Unit.........................................................................................................................................13
6.2 Outdoor Unit.....................................................................................................................................13
7. Installation details.............................................................................................................................15
7.1 Wrench torque sheet for installation............................................................................................16
7.2 Connecting the cables..................................................................................................................16
7.3 Pipe length and the elevation......................................................................................................16
7.4 Air purging of the piping and indoor unit...................................................................................16
7.5 Pumping down (Re-installation)....................................................................................................18
7.6 Re-air purging (Re-installation)......................................................................................................19
7.7 Balance refrigerant of the 2-way, 3-way valves........................................................................20
7.8 Evacuation........................................................................................................................................21
7.9 Gas charging....................................................................................................................................22
8. Electronic function............................................................................................................................23
8.1 Abbreviation.....................................................................................................................................23
8.2 Display function................................................................................................................................23
8.3 Protection..........................................................................................................................................24
8.4 Fan-Only Mode................................................................................................................................24
8.5 Cooling Mode..................................................................................................................................25
8.6 Drying mode.....................................................................................................................................26
8.7 Heating mode..................................................................................................................................26
8.8 Auto mode function........................................................................................................................30
8.9 Forced operation function.............................................................................................................30
8.10 Action of 4-way valve...................................................................................................................30
8.11 Two speeds outdoor fan function..............................................................................................31
8.12 Timer function.................................................................................................................................31
8.13 Sleep function mode....................................................................................................................31