Engineering Manual
Table Of Contents
- Convergence of Technology, Innovation, Flexibility, & Style
 - Unit Nomenclature
 - Outdoor Unit Overview
 - Indoor Unit Overview
 - Controls and Options Overview
 - Art Cool Mirror Indoor Units
 - General Data / Specifications
 - Dimensions
 - Cooling Capacity Table
 - Heating Capacity Table
 - Acoustic Data
 - Air Velocity and Temperature Distribution
 - Refrigerant Flow Diagram
 - Wiring Diagram
 - Factory Supplied Parts and Materials
 - Installation and Best Layout Practices
 - Art Cool Gallery Indoor Units
 - General Data / Specifications
 - Dimensions
 - Cooling Capacity Table
 - Heating Capacity Table
 - Acoustic Data
 - Air Velocity and Temperature Distribution
 - Refrigerant Flow Diagram
 - Wiring Diagram
 - Factory Supplied Parts and Materials
 - Installation and Best Layout Practices
 - Standard Wall-Mounted Indoor Units
 - General Data / Specifications
 - Dimensions
 - Cooling Capacity Table
 - Heating Capacity Table
 - Acoustic Data
 - Air Velocity and Temperature Distribution
 - Refrigerant Flow Diagram
 - Wiring Diagram
 - Factory Supplied Parts and Materials
 - Installation and Best Layout Practices
 - Duct (Low Static) Indoor Units
 - General Data / Specifications
 - Dimensions
 - Cooling Capacity Table
 - Heating Capacity Table
 - External Static Pressure
 - Acoustic Data
 - Refrigerant Flow Diagrams
 - Wiring Diagram
 - Factory Supplied Parts and Materials
 - Installation and Best Layout Practices
 - Duct (High Static) Indoor Units
 - General Data / Specifications
 - Dimensions
 - Cooling Capacity Table
 - Heating Capacity Table
 - External Static Pressure / Acoustic Data
 - Refrigerant Flow Diagrams
 - Wiring Diagrams
 - Factory Supplied Parts and Materials / Installation
 - Installation and Best Layout Practices
 - Four-Way Ceiling Cassette Indoor Units
 - General Data / Specifications
 - Dimensions
 - Dimensions
 - Cooling Capacity Table
 - Heating Capacity Table
 - Acoustic Data
 - Air Velocity and Temperature Distribution
 - Refrigerant Flow Diagram
 - Wiring Diagram
 - Factory Supplied Parts and Materials
 - Installation and Best Layout Practices
 - Vertical-Horizontal Indoor Units
 - General Data / Specifications
 - Dimensions
 - Cooling Capacity Table
 - Heating Capacity Table
 - External Static Pressure
 - Acoustic Data
 - Refrigerant Flow Diagram
 - Wiring Diagram
 - Factory Supplied Parts and Materials
 - Installation and Best Layout Practices
 - Equipment Selection Procedure
 - Building Ventilation Design Guide
 - Placement Considerations
 - Refrigerant Piping Design
 - Design Guideline Summary
 - Creating a Balanced System / Manual Layout Procedure
 - LG Engineered Multi F MAX Y-Branch Kit
 - Refrigerant Charge
 - Installation & Layout Best Practices
 - Refrigerant Piping System Layout
 - Piping Insulation
 - Condensate Drain Piping
 - Y-Branch Kit
 - Wiring Connections
 - Power Wiring (208-230V) and Communications Cable Details
 - Indoor Unit Group Control
 - Acronyms
 
STD. WALL-MOUNTED | 73
Standard Wall-Mounted
Due to our policy of continuous product innovation, some specications may change without notication.  
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
MULTI 
F
MAX
MULTI 
F
Figure 82:LSN180HSV4 Air Velocity and Temperature Distribution Charts.
Cooling Heating
Air velocity [ft/s]
19.7ft23ft26.2ft
19.7ft23ft26.2ft
Temperature [˚F]
2.5
4.1
3.3
4.9
1.6
77
75.2
73.4
8.9ft
6.6ft
4.0ft
0ft
8.9ft
6.6ft
4.0ft
0ft
0ft3.3ft6.6ft9.8ft13.1ft16.4ft
0ft3.3ft6.6ft9.8ft13.1ft16.4ft
Air velocity [ft/s]
Temperature [˚F]
2.5
4.1
3.3
4.9
1.6
82.4
84.2
86
87.8
8.9ft
6.6ft
4.0ft
0ft
8.9ft
6.6ft
4.0ft
0ft
0ft3.3ft6.6ft9.8ft13.1ft16.4ft19.7ft23ft26.2ft
0ft3.3ft6.6ft9.8ft13.1ft16.4ft19.7ft23ft26.2ft
Discharge angle:45° Discharge angle:50°
Air Velocity and Temperature Distribution
STANDARD WALL-MOUNTED INDOOR UNITS
Figure 83:LMN247HVT Air Velocity and Temperature Distribution Charts.
Cooling Heating
Temperature [°F]
3.3
4.9
6.6
8.2
9.8
11 .5
88
88
91
95
99
9f t
7f t
3f t
16ft 13ft 10f t7ft 3f t
0f t
9f t
7f t
3f t
0f t
0f t
16ft 13ft 10f t7ft 3f t
0f t
Air velocity [ft/s]
Temperature [°F]
1.6
1.6
3.3
4.9
6.6
8.2
9.8
11 .5
68
68
66
64
61
9f t
7f t
3f t
0f t
16ft 13ft 10f t7ft 3f t
0f t
9f t
7f t
3f t
0f t
16ft 13ft 10f t7ft 3f t
0f t
Air velocity [ft/s]
Discharge angle : 40° Discharge angle : 50°










