Table Of Contents - Midea MSH-21HRN1-QB8 Service Manual

Room airconditioner split wall mounted type

Table of Contents

Precaution...........................................................................................................................................2

1.1

Safety Precaution.................................................................................................................................2

1.2

Warning ................................................................................................................................................2

Function ..............................................................................................................................................3

Dimension...........................................................................................................................................5

3.1

Indoor unit ............................................................................................................................................5

3.2

Outdoor unit .........................................................................................................................................5

Refrigerant cycle diagram.................................................................................................................8

Operation limits..................................................................................................................................9

5.1

Cooling operation .................................................................................................................................9

5.2

Heating operation.................................................................................................................................9

Wiring diagram ...................................................................................................................................9

Installation details ............................................................................................................................10

7.1

Wrench torque sheet for installation ..................................................................................................10

7.2

Connecting the cables .......................................................................................................................10

7.3

Pipe length and the elevation.............................................................................................................10

7.4

Air purging of the piping and indoor unit ............................................................................................11

7.5

Pumping down (Re-installation) .........................................................................................................12

7.6

Re-air purging (Re-installation) ..........................................................................................................13

7.7

Balance refrigerant of the 2-way, 3-way valves .................................................................................14

7.8

Evacuation .........................................................................................................................................17

7.9

Gas charging......................................................................................................................................18

Electronic function ..........................................................................................................................19

8.1

Proper symbols and their meaning ....................................................................................................19

8.2

Function .............................................................................................................................................19

8.3

Protection ...........................................................................................................................................19

8.4

Fan-only mode ............................................................................... Błąd! Nie zdefiniowano zakładki.

8.5

Cooling mode ................................................................................. Błąd! Nie zdefiniowano zakładki.

8.6

Dehumidifying mode ...................................................................... Błąd! Nie zdefiniowano zakładki.

8.7

Heating mode................................................................................. Błąd! Nie zdefiniowano zakładki.

8.8

Defrosting mode(available for heating mode)................................ Błąd! Nie zdefiniowano zakładki.

8.9

Auto mode...................................................................................... Błąd! Nie zdefiniowano zakładki.