LG multi V PLUS Manuals

Manuals and User Guides for LG multi V PLUS. We have 1 LG multi V PLUS manual available for free PDF download: Service Manual

LG multi V PLUS Service Manual

LG multi V PLUS Service Manual (374 pages)

Brand: LG | Category: Air Conditioner | Size: 8.36 MB

Table of Contents

Air Conditioner
1
Service Manual
1
Table of Contents
2
Safety Precautions
3
General Information
10
Model Names
11
- Indoor Unit
  11
- Outdoor Unit
  11
External Appearance
12
- Indoor Unit
  12
- Outdoor Unit
  13
Combination of Outdoor Units
14
Nomenclature
15
- Indoor Unit
  15
- Outdoor Unit
  15
Outdoor Units Information
16
- Heat Pump
  17
- Cooling Only
  18
- Outdoor Units
  18
Indoor Units
21
- Ceiling Mounted Cassette Type (1Way)
  22
  - Indoor Units Specifications
    23
  - Indoor Unit Functions
    27
- Operation Details
  28
  - Cooling Mode Operation
    28
  - Time Delay Safety Control
    28
  - Air-Filter Checking Control
    28
  - Heating Mode Operation
    29
  - Hot-Start Control
    29
- Dimensional Drawings
  30
- Piping Diagrams
  31
- Wiring Diagrams
  32
- Ceiling Mounted Cassette Type (4 Way)
  33
- Specifications
  34
- Functions
  46
- Operation Detail
  47
- Dimensional Drawings
  49
- Piping Diagrams
  51
- Heat Exchanger
  51
- Wiring Diagrams
  52
- Ceiling Concealed Duct Type (High Static)
  53
- Specifications
  54
- Functions
  66
- Operation Details
  67
- Dimensional Drawings
  69
- Piping Diagrams
  70
- Wiring Diagrams
  71
- Ceiling Concealed Duct Type (Low Static)
  75
- Specifications
  76
- Functions
  80
- Operation Details
  81
- Dimensional Drawings
  83
- Front View
  83
- Piping Diagrams
  84
- Wiring Diagrams
  85
- Convertible Type
  87
- Specification
  88
- Functions
  92
- Operation Details
  93
  - Airflow Direction Control
    93
  - Soft Dry Operation
    97
  - Forced Operation
    97
  - Test Operation
    98
- Display Function
  99
- Dimensional Drawings
  100
- Piping Diagrams
  101
- Wiring Diagrams
  102
- Indoor Unit Disassembly
  103
- Disassembly of the Parts
  103
- Wall Mounted Type
  107
- Specification
  108
- Functions
  112
- Operation Details
  113
- Dimensional Drawings
  118
- Piping Diagrams
  119
- Wiring Diagrams
  120
- Disassembly of the Parts
  121
- Art Cool Type (Deluxe)
  123
- Specification
  124
- Functions
  128
- Healthy Dehumidification Mode
  129
- Operation Details
  129
  - Defrost Control
    130
  - Fuzzy Operation
    131
  - Airflow Speed Selection
    132
  - On-Timer Operation
    132
  - Off-Timer Operation
    132
  - Sleep Timer Operation
    132
  - Chaos Swing Mode
    133
  - Chaos Natural Wind Mode
    133
  - Jet Cool Mode Operation
    133
  - Forced Operation
    133
  - Air Cleaner Operation
    134
  - Protection of the Evaporator Pipe from Frosting
    134
  - Display Luminosity
    134
  - Buzzer Sounding Operation
    134
- Display Function
  135
- Dimensional Drawings
  136
- Piping Diagrams
  137
- Wiring Diagrams
  138
- Disassembly of the Parts
  139
- Art Cool Type
  143
- Specification
  144
- Functions
  148
- Operation Details
  149
- Sleep Timer Operation
  152
- Display Function
  154
- Dimensional Drawings
  155
- Piping Diagrams
  156
- Wiring Diagrams
  157
- Disassembly of the Parts
  158
- Art Cool Type (Wide)
  161
- Specification
  162
- Functions
  166
- Operation Details
  169
- Display Function
  173
- Dimensional Drawings
  174
- Piping Diagrams
  175
- Wiring Diagrams
  176
- Disassembly of the Parts
  177
Outdoor Units
179
- Outdoor Unit - LRUV/LRUN Series
  180
- Outdoor Unit Specifications
  181
- Outdoor Unit Function
  203
- Basic Control
  204
- Compressor Control
  204
- Main and Sub Unit's LEV Control
  204
- Normal Operation
  204
- Fan Control
  205
- Oil Return Control on Cooling Mode
  205
- Subcooling LEV Control
  205
- Discharge Temperature Control
  215
- Inverter Protection Control
  216
- Phase Detection
  216
  - Pressure Switch
    216
  - Auto Addressing
    217
  - Communication Check
    217
- Initial Setup
  217
  - PCB Error Check
    217
  - Controls for Error Occurrence
    218
  - Ct(Current Transformer) Sensor Fault Error
    218
  - DC Peak Control
    218
  - Over Upper Limit Voltage and below Lowest Limit Voltage
    218
  - Outdoor Unit Dimensions
    219
  - Piping Diagrams - Outdoor Unit
    223
  - Refrigerant Flow for each Operation Mode
    223
  - Heating Operation
    224
  - Cooling Operation
    226
  - Wiring Diagrams (Outdoor Unit)
    232
  - PCB Views
    242
- Trouble Shooting Guide
  245
  - Troubleshooting Guide
    246
  - The Phenomena from Main Component Failure
    247
  - Checking Method for Key Fompornents
    248
  - Compressor Check
    248
  - Fan Motor Check
    249
  - Linear Empansion Valve Check
    250
  - LEV Failure Check Method
    252
  - 3Phase Bridge Diode Check
    253
  - IPM (Integrated Power Module) Check
    254
  - Electrolytic Capacitor and Resistor for Voltage Distribution
    255
  - Self-Diagnosis Function
    256
  - Error Indicator
    257
  - Failure Checking Method
    262
  - Fault Diagnosis and Trouble Shooting Guide
    262
  - Communication Error between Wired Remote Controller and Indoor Unit
    263
  - Drain Pump Error
    264
  - Communication Error between Outdoor Unit and Indoor Unit
    265
  - Different Operation Mode between Indoor Units
    266
  - Occurence of Excessive Current in Inverter Compressor
    267
  - Maximum over Current (MAX CT) or Minimum Current
    268
  - DC Link Voltage for Inverter Compressor Drive
    269
  - High Pressure Switch of Outdoor Unit
    270
  - Low Voltage/High Voltage
    271
  - Discharge Temperature
    272
  - High Pressure Rise
    273
  - Low Pressure Drop
    274
  - Sensor Error
    275
  - Excessive Capacity of Indoor Units
    276
  - Communication Error (Inverter PCB - Main PCB)
    277
  - Communication Error (Indoor Unit - Main PCB)
    278
  - 3-Phase Wrong Wiring
    279
  - Heatsink of Inverter Compressor
    280
  - Communication Error between Outdoor Units
    281
  - Communication Error between Main PCB and Fan PCB
    282
  - Over-Current of Outdoor Unit Fan Motor (IPM Fault)
    283
  - Low Voltage of Main Outdoor Unit Fan Motor
    284
  - 4Way Valve
    285
  - Compressor Troubles
    286
  - Outdoor Unit LEV Troubles
    287
  - Excessive Cold LEV
    288
  - Way Valve
    289
  - Check Valve (Parallel Connected Check Valve in Outdoor Unit)
    290
  - Hot Gas Bypass Valve
    291
  - Constant Speed Outdoor Unit Fan
    292
  - Liquid Injection Valve
    292
  - Cooling Fan Check
    293
  - Inverter Outdoor Unit Fan Check
    293
  - High/Low Pressure Sensor Check
    294
  - Thermistor Check
    294
  - Pressure Switch Check
    295
- Appendix
  297
  - Position of the LED01Y in Inverter Board
    298
  - Resistance-Temperature Table
    299
  - Low Pressure Sensor
    301
  - Voltage-Pressure Table
    301
  - High Pressure Sensor
    302
- Exploded View & Replacement Parts List
  303
- Exploded View & Replacement Parts List
  304

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