User Manuals: LG LMU540HV Ductless Mini Split

Manuals and User Guides for LG LMU540HV Ductless Mini Split. We have 7 LG LMU540HV Ductless Mini Split manuals available for free PDF download: Engineering Manual, Service Manual, Installation Manual, Submittal Data

LG LMU540HV Engineering Manual (392 pages)

Multi-Zone Heat Pump Systems 1.5 to 4.5 Tons

Brand: LG | Category: Heat Pump | Size: 17.12 MB

Table of Contents
3
About LG Electronics, Inc

4
Multi-Zone Systems

4
Unit Nomenclature

6
Outdoor Unit Overview

7
Indoor Unit Overview

8
Controls and Options Overview

9
- Controls and Options Overview
  13
Multi F Outdoor Unit Product Data

15
- Product Features and Benefits
  15
- Mechanical Specifications
  15
- General Data
  15
- Dimensions
  15
- Rated Cooling Combination Tables
  15
- Rated Heating Combination Tables
  15
- Cooling Capacity Tables
  15
- Heating Capacity Tables
  15
- Electrical Data
  279
- Acoustic Data
  279
- Refrigerant Flow Diagrams
  280
  - Refrigerant Flow Diagrams
    282
  - Wiring Diagrams
    283
  - Wiring Diagrams
    285
- Operation Range
  286
Multi F MAX Outdoor Unit Product Data

287
- Product Features and Benefits
  287
- Mechanical Specifications
  287
- General Data
  287
- Dimensions
  287
- Rated Cooling Combination Tables
  287
- Rated Heating Combination Tables
  287
- Cooling Capacity Tables
  287
- Heating Capacity Tables
  321
- Electrical Data
  327
- Acoustic Data
  327
- Refrigerant Flow Diagrams
  328
- Wiring Diagrams
  329
- Operation Range
  330
Multi F MAX Branch Distribution Unit Product Data

331
- Mechanical Specifications
  331
- General Data
  334
- Dimensions
  335
- Refrigerant Flow Diagram
  336
- Wiring Diagram
  337
- Y-Branch Accessory
  338
- Branch Distribution Unit Orientation
  339
Application Guidelines

341
- Equipment Selection Procedure
  342
- Building Ventilation Design Guide
  348
- Placement Considerations
  353
- Application Guidelines
  358
Refrigerant Piping Design & Layout Best Practices

359
- Design Guideline Summary
  359
- Creating a Balanced / Quality Piping System
  359
- Manual Layout Procedure
  359
- LG Engineered Multi F MAX Y-Branch Kits
  359
- Refrigerant Charge
  364
- Refrigerant Charge
  365
- Selecting Field-Supplied Copper Tubing
  366
- Refrigerant Piping System Layout
  368
- Piping Insulation
  376
- Condensate Drain Piping
  377
- Cut Sheet
  379
Wiring Connections

381
- General Information
  381
- Power Wiring and Communications Cable Details
  381
- Indoor Unit Group Control
  381
- Wiring Connections
  390
Acronyms

391

LG LMU540HV Service Manual (113 pages)

LG Multi-Inverter Type Air Conditioner SVC MANUAL(General)

Brand: LG | Category: Air Conditioner | Size: 10.81 MB

Table of Contents

2
- Part 1 General Information
  3
  - Safety Precautions
    4
  - Model Line up
    7
  - Outdoor Units
    8
  - Nomenclature
    10
Part 2 Functions & Controls

12
- 1 List of Functions & Accessory
  
  13
- 2 Air Flow
  
  15
  - Auto Swing (Left & Right)
    15
  - Auto Swing (up & Down)
    15
  - Chaos Swing (Up/Down)
    15
  - Air Flow Step
    16
  - Chaos Wind (Auto Wind)
    16
  - Jet Cool Mode Operation
    16
  - Swirl Wind Swing
    16
- 3 Air Purifying
  
  17
  - PLASMA Air Purifying System
    17
- 4 Installation Functions
  
  18
  - External Static Pressure) Setting
    18
- 5 Reliability
  
  19
  - Hot Start
    19
  - Self-Diagnosis Function
    19
  - Soft Dry Operation
    19
- 6 Convenience Functions & Controls
  
  20
  - Cooling & Heating Operations
    20
  - Auto Cleaning Operation
    21
  - Auto Operation (Artificial Intelligence)
    21
  - Auto Restart Operation
    22
  - Child Lock Function
    23
  - Forced Operation
    23
  - Group Control
    24
  - Sleep Timer Operation
    25
  - Timer(On/Off)
    25
  - Weekly Program
    25
  - Two Thermistor Control
    26
- 7 Special Function & KIT
  
  27
  - Low Ambient Control
    27
  - Space Control
    27
  - Auto Elevation Grille
    27
  - Defrost Control(Heating)
    29
Part 3. Basic Control

30
- Part 3 Basic Control
  30
- 1 Normal Operation
  
  31
  - Compressor Control
    31
- 3 EEV( Electronic Expansion Valve) Control
  
  31
- 4 Oil Return Control
  
  32
- 5 Defrost Control
  
  32
- 6 Protection Control
  
  33
  - High Pressure Protection Control
    33
  - Low Pressure Protection Control
    33
  - Discharge Temperature Control
    33
  - Input Current Control
    33
  - Part 4 Test Run
    34
    
    Check before Test Run
    35
    
    Test Run Flow Chart
    36
    
    Test Running
    37
    
    Ceiling Cassette Type
    38
Part 5 Trouble Shooting Guide

39
- 1 Self-Diagnosis Function
  
  40
  - Error Indicator (Indoor)
    40
  - Error Indicator (Outdoor)
    41
- 2 Pump down
  
  42
- 3 Evacuation
  
  43
- 4 Gas Charging
  
  44
- 5 Cycle Part
  
  45
- 6 Electronic Parts
  
  46

LG LMU540HV Installation Manual (104 pages)

Outdoor Unit

Brand: LG | Category: Heat Pump | Size: 15.03 MB

Table of Contents
3
Safety Instructions
4
Nomenclature
8
General Data
9
Transporting / Lifting
19
Placement Considerations
20
Mounting / Anchoring
31
General Refrigerant Piping System Information
33
LG Air Conditioner Technical Solution (LATS)
33
Refrigerant Safety Standards / Device Connection Limitations
35
Selecting Copper Piping
37
Copper Expansion and Contraction
38
Piping Handling
41
Refrigerant System Engineering
42
Flaring and Brazing Procedures
46
Refrigerant Piping Insulation
47
Refrigerant Piping System Installation
48
Electrical System Installation
60
General Information
60
Installation
65
Final Installation Procedures
76
Triple Leak / Pressure Test
76
Deep Evacuation Test
77
Triple Evacuation Test
78
Refrigerant Charge
82
Cautions for Refrigerant Leaks
83
Test Run
85
DIP Switch Settings for Optional Modes
86
Error Codes
91
LG Monitoring View (LGMV) Diagnostic Software
93
LG Smart Inverter Monitoring System (SIMS)
95
Maintenance Recommendations
97
Installation Checklists and Worksheets
98

LG LMU540HV Installation Manual (79 pages)

Multi-Zone Heat Pump Systems OUTDOOR UNIT

Brand: LG | Category: Air Conditioner | Size: 6.03 MB

Safety Instructions
3
- Safety Instructions
  6
- Table of Contents
  7
- Specifications
  8
Electrical Data
11
R410A Refrigerant
12
General Installation Guidelines
13
Piping Preparation
24
Piping Preparation
25
Piping Materials and Handling
26
General Installation Guidelines
34
Refrigerant Piping Connections
35
Refrigerant Piping Connections
40
Flushing the Refrigerant Piping
41
Leak Test and Vacuum Procedures
42
Additional Charge
45
Refrigerant Charge
45
Refrigerant Piping Insulation
48
- Refrigerant Piping Insulation
  52
- General Information
  53
- Power Wiring and Communications Cable Connections
  55
- Test Run
  59
- DIP Switch Settings
  60
- Wiring Error Check
  62
- Self Diagnosis Functions
  65
  - Troubleshooting
    65
  - Error Codes
    69
Electrical Wiring
53
Caution for Refrigerant Leakage
71
Refrigerant Piping
73
Installation Checklists
73

LG LMU540HV Installation Manual (80 pages)

OUTDOOR UNIT, Multi-Zone Heat Pump Systems 1.5 to 5 Tons

Brand: LG | Category: Air Conditioner | Size: 11.61 MB

Safety Instructions
3
Table of Contents
7
Electrical Data
11
R410A Refrigerant
12
General Installation Guidelines
13
Oceanside Installation Precautions
13
Rooftop Installations
14
Planning for Snow and Ice
14
Allowable Clearances
16
Platform Instructions
19
Branch Distribution Unit Installation
22
Piping Preparation
24
Piping Materials and Handling
26
Refrigerant Piping Connections
35
Flushing the Refrigerant Piping
41
Leak Test and Vacuum Procedures
42
Refrigerant Charge
45
Refrigerant Piping Insulation
48
Electrical Wiring
53
Power Wiring and Communications Cable Connections
55
Test Run
60
DIP Switch Settings
61
Self Diagnosis Functions
66
Caution for Refrigerant Leakage
72
Installation Checklists
74

LG LMU540HV Installation Manual (55 pages)

Brand: LG | Category: Air Conditioner | Size: 21.6 MB

Table of Contents
3
Installation Parts Provided
4
Safety Instructions
5
Installation of Indoor, Outdoor Unit
8
Select the Best Location
8
Seaside Applications and Installation
10
Seasonal Wind and Cautions in Winter
11
Installation
14
Connecting the Piping
14
How to Fix
18
Wiring Connection
19
Conduit Connection
19
Ceiling Dimension and Hanging Bolt Location
20
How to Fix
21
Wiring Connection
21
Conduit Connection
21
Installation of Wired Remote Controller(Optional)
22
Installation of Decorative Panel
24
Drain Piping
26
Flaring Work and Connection of Piping
29
Flaring Work
29
Connection of Piping - Outdoor
30
Installation
33
Installation of the Main Unit
34
Connecting the Cable between Indoor Unit, Distributor Unit and Outdoor Unit
35
Connect the Cable to the Indoor Unit
35
Connect the Cable to the Distributor Unit
36
Connect the Cable to the Outdoor Unit
38
Connection Method of the Connecting Cable(Example)
40
Checking the Drainage, Insulating the Pipe and Special Piping Applications
41
Checking the Drainage
41
Insulating the Pipe and Special Piping Applications
41
Air Purging and Evacuation
42
Leak Checking
42
Evacuation
43
Charging
44
Installation Pi485
46
Test Running
47
Function
48
DIP S/W Setting
48
Forced Cooling Operation
49
Wiring Error Check
50
Saving Power Consumption
50
Night Quiet Mode
51
Mode Lock
52
PCB Display(18/24/60 K Model Only)
53
Max Combination Capacity
54

LG LMU540HV Submittal Data (3 pages)

Multi F MAX Inverter Heat Pump Outdoor Unit

Brand: LG | Category: Air Conditioner | Size: 1.32 MB

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User Manuals: LG LMU540HV Ductless Mini Split

LG LMU540HV Engineering Manual (392 pages)

Table of Contents

About LG Electronics, Inc

Multi-Zone Systems

Unit Nomenclature

Outdoor Unit Overview

Indoor Unit Overview

Controls and Options Overview

Multi F Outdoor Unit Product Data

Multi F MAX Outdoor Unit Product Data

Multi F MAX Branch Distribution Unit Product Data

Application Guidelines

Refrigerant Piping Design & Layout Best Practices

Wiring Connections

Acronyms

LG LMU540HV Service Manual (113 pages)

Table of Contents

Table of Contents

Part 2 Functions & Controls

1 List of Functions & Accessory

2 Air Flow

3 Air Purifying

4 Installation Functions

5 Reliability

6 Convenience Functions & Controls

7 Special Function & KIT

Part 3. Basic Control

1 Normal Operation

3 EEV( Electronic Expansion Valve) Control

4 Oil Return Control

5 Defrost Control

6 Protection Control

Part 5 Trouble Shooting Guide

1 Self-Diagnosis Function

2 Pump down

3 Evacuation

4 Gas Charging

5 Cycle Part

6 Electronic Parts

LG LMU540HV Installation Manual (104 pages)

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LG LMU540HV Installation Manual (79 pages)

Table of Contents

LG LMU540HV Installation Manual (80 pages)

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LG LMU540HV Installation Manual (55 pages)

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LG LMU540HV Submittal Data (3 pages)

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