Table Of Contents - Midea MFJ-24ARN1-QB8 Technical & Service Manual

1 Safety Precautions .......................................................................................... 1
1.1 Precaution .................................................................................................................... 1
1.2 Installation ................................................................................................................... 1
1.3 Caution ......................................................................................................................... 1
1.4 Operational .................................................................................................................. 1
3 Out Dimensions ............................................................................................... 3
3.1 Indoor Unit ................................................................................................................... 3
3.2 Outdoor Unit ................................................................................................................. 4
4 External view and display ............................................................................... 5
4.1 External view ................................................................................................................ 5
4.2 Display panel ............................................................................................................... 6
5 Refrigerant cycle diagram .............................................................................. 7
5.1 Cooling only .................................................................................................................. 7
5.2 Heat pump mode ......................................................................................................... 7
6 PCB drawing & wiring diagram ...................................................................... 8
6.1 MFJ-24ARN1-QB8 ........................................................................................................ 8
6.2 MFJ-48ARN1-RB6 ........................................................................................................ 9
7 Installation detail ........................................................................................... 10
7.1 Installation place ....................................................................................................... 10
7.2 Installing ..................................................................................................................... 11
7.3 Refrigerant pipe connecting .....................................................................................13
7.4 Drain Pipe of The Indoor Unit ...................................................................................15
7.5 Wiring .........................................................................................................................15
7.6 Test operation ............................................................................................................ 16
8 Electronic function ........................................................................................ 17
8.1 Performance Index .................................................................................................... 17
8.2 Main data Introduction.............................................................................................. 17
8.3 Operation Modes and Functions .............................................................................. 17
8.4 Other Functions .........................................................................................................19
9 Characteristic of temperature sensor ......................................................... 20
10 Trouble shooting ........................................................................................... 21
10.1 Protective Function .................................................................................................... 21
10.2 Self-diagnosis ............................................................................................................ 21
10.3 Troubles and Solutions ............................................................................................. 22
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