Midea MS2G-21HRN2 Manuals

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Midea MS2G-21HRN2 Manual

Midea MS2G-21HRN2 Manual (360 pages)

Midea Air Conditioner service manual

Brand: Midea | Category: Air Conditioner | Size: 12 MB

Table of Contents

Contents
1
Table of Contents
2
Features
3
Specification
4
Indoor Unit
5
Dimensions
5
Refrigeration Cycle Diagram
8
Pressure Table
9
Capacity Table
12
- Schematic Diagram
  17
- Cooling Only
  18
Wiring Diagram
18
- Msh-12Hrn1 Wiring Diagram
  21
- Electric Control Working Environment
  22
Electronic Function
22
- Protection
  23
- The Current Protection of the Compressor
  23
- Fan-Only Mode
  23
- Cooling Mode
  23
- Dehumidifying Mode
  24
- Compressor and Indoor Fan Actions in Dehumidifying Mode
  24
- Low Room Temperature Protection
  25
- Heating Mode
  25
- Indoor Fan Actions at Heating Mode
  25
- Auto Wind at Heating Mode
  25
- Ending Condition of Defrosting
  26
- Indoor Evaporator High-Temperature Protection at Heating Mode
  26
- Defrosting Time
  26
- Defrosting Actions
  27
- Automatic Operation Mode
  27
- Forced Cooling Function
  27
- Economic Running
  27
- Heating
  28
- Models and Parameters
  29
- Display Board
  30
Troubleshooting
30
Characteristic of Temp. Sensor
33
- Compact Design
  35
- High Efficiency and Quiet Operation
  35
- Refrigeration Distributor
  38
- Cooling Operation
  39
- Heating Operation
  39
- Operation Limits
  39
- Indoor Unit
  42
- Changing Function Can Not be Set
  43
- Emission Signal Does Not Blink
  43
- Failure and Related Causes of Remote Controller
  43
- Temperature Display Is Dark
  43
- Systematic Functions
  44
- Features
  51
- Specification
  52
- Dimensions
  53
- Refrigeration Cycle Diagram
  54
- Operation Limits
  55
- Outdoor Unit
  56
- Wiring Diagram
  56
- Troubleshooting
  57
- Electronic Function
  58
- Indoor Evaporator High-Temperature Protection under Heating Mode
  61
- Product Features
  65
- Specification
  66
- Dimensions
  70
  - Refrigeration Circuit Drawing of Inverter Binary Type
    71
  - Refrigeration Circuit Drawing of Inverter Trinary Type
    71
- Refrigeration Cycle Diagram
  71
- Operation Limits
  72
- Outdoor Unit Air Temp.
  72
- Capacity Table
  73
  - Capacity Table of Inverter Binary Eco Type
    73
  - Capacity Table of Inverter Trinary Eco Type
    73
- Wiring Diagram
  75
- Electric Control Functions
  77
  - AC Amp Protection
    78
  - High-Pressure Protection and Low-Pressure Protection
    78
  - Outdoor Condenser High Temperature Protection
    78
  - Outdoor Unit Communication Protection
    78
  - Compressor Pre-Heating Function
    79
  - Display Function
    79
  - Outdoor Low Temperature Protection
    79
  - Temperature Sensor Short/Open Protection
    79
  - Indoor Unit(MSG-12HRIN2)
    91
  - Outdoor Unit (MSG-07HRIN2 / MSG-09HRIN2 / MSG-12HRIN2)
    91
  - Indoor Unit Error Display Function
    92
  - Outdoor Unit Error Self-Diagnosis Display
    92
  - Cooling Mode Function Requirement
    94
  - Outdoor Unit Current Control When Cooling
    94
  - Cooling Only
    106
  - For All Cooling Only Model
    112
  - For All Heat Pump Model
    112
  - Auto Fan at Cooling Mode
    114
  - Cute Star Series
    121
  - Light Star Series
    139
  - Bright Star Series
    150
  - Electronic Control Principle of Large Cooling Capacity Split Model A/C
    159
  - Defrosting Mode
    160
  - Auto Mode
    161
  - Economic Mode
    161
  - Forced Cooling
    161
  - Manual Operation
    161
  - Glory (Eco) Star Series
    181
  - Bright Eco Series
    213
- Features
  214
- Specification
  215
- Dimensions
  219
- Refrigeration Cycle Diagram
  222
- Operation Limits
  223
- Wiring Diagram
  224
- Electric Control Functions
  232
- Troubleshooting
  232
- Auto Fan
  245
- Features
  251
- Specification
  252
- Dimensions
  254
- Refrigeration Cycle Diagram
  256
- Operation Limits
  257
- Wiring Diagram
  258
- Electric Control Functions
  262
- Troubleshooting
  262
  - Cooling Mode
    264
  - Light Star Series
    273
  - DC INVERTER Wall Mounted
    277
- Features
  278
- Specification
  279
- Dimensions
  280
- Refrigeration Cycle Diagram
  282
- Pressure Table
  283
- Capacity Table
  285
- Operation Limits
  287
- Indoor Main PCB
  288
- PCB Diagram
  288
  - Outdoor Main PCB
    289
  - Indoor Pcb
    290
  - MSH-09HRDN1 Indoor Unit
    290
- Wiring Diagram
  290
  - MSH-12HRDN1 Indoor Unit
    291
  - MSH-12HRDN1 Outdoor Unit
    291
- Electronic Function
  292
- Troubleshooting
  299
- Characteristic of Temp. Sensor
  305
- Features
  308
- Specification
  309
- Dimensions
  311
- Refrigeration Cycle
  313
- Diagram
  315
- Wiring
  315
- Troubleshooting
  319
- Electronic Function
  321
- Features
  332
- Specification
  333
- Dimensions
  335
- Refrigeration Cycle Diagram
  337
- Capacity Table
  338
- Wiring Diagram
  344
- Display Board
  356
- Troubleshooting
  356
- Characteristic of Temp. Sensor
  359

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