Table Of Contents - Midea MSF3-07CRN2 Service Manual

1. Precaution...........................................................................................................................................2
1.1 Safety Precaution.................................................................................................................................2
1.2 Warning ................................................................................................................................................2
2. Function ..............................................................................................................................................3
3. Dimension...........................................................................................................................................5
3.1 Indoor unit ............................................................................................................................................5
3.2 Outdoor unit .........................................................................................................................................5
4. Specification.......................................................................................................................................6
5. Refrigerant cycle diagram.................................................................................................................8
6. Operation limits..................................................................................................................................9
6.1 Cooling operation.................................................................................................................................9
6.2 Heating operation.................................................................................................................................9
7. Schematic diagram and Wiring diagram .......................................................................................10
7.1. Schematic diagram ............................................................................................................................10
7.2. Wiring diagram ...................................................................................................................................11
8. Installation details............................................................................................................................13
8.1 Wrench torque sheet for installation ..................................................................................................13
8.2 Connecting the cables .......................................................................................................................13
8.3 Pipe length and the elevation.............................................................................................................13
8.4 Air purging of the piping and indoor unit ............................................................................................14
8.5 Pumping down (Re-installation) .........................................................................................................15
8.6 Re-air purging (Re-installation) ..........................................................................................................16
8.7 Balance refrigerant of the 2-way, 3-way valves .................................................................................17
8.8 Evacuation .........................................................................................................................................18
8.9 Gas charging......................................................................................................................................19
9. Pressure table ..................................................................................................................................20
9.1 MSF3-07CRN2 ..................................................................................................................................20
9.2 MSF3-07HRN2 ..................................................................................................................................20
9.3 MSF3-09CRN2 ..................................................................................................................................21
9.4 MSF3-09HRN2 ..................................................................................................................................21
9.5 MSF3-12CRN2 ..................................................................................................................................22
9.6 MSF3-12HRN2 ..................................................................................................................................22
10. Capacity table ...................................................................................................................................23
10.1 MSF3-07CRN2 ..................................................................................................................................23
10.2 MSF3-07HRN2 ..................................................................................................................................23
10.3 MSF3-09CRN2 ..................................................................................................................................24
10.4 MSF3-09HRN2 ..................................................................................................................................25
2
Content
Content