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 | 71
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
Air Velocity and Temperature Distribution
STANDARD WALL-MOUNTED INDOOR UNITS
Figure 78:LMN077HVT Air Velocity and Temperature Distribution Charts.
Figure 79:LSN090HSV4 Air Velocity and Temperature Distribution Charts.
Cooling Heating
1. 6
3.3
4. 9
Temperature [°F]
75
72
68
64
9f t
7f t
3f t
0f t
16ft 13ft 10f t7ft 3ft
0f t
9f t
7f t
3f t
0f t
16ft 13ft 10f t7ft 3ft
0f t
Air velocity [ft/s]
Temperature [°F]
9f t
7f t
3f t
16ft 13ft 10f t7ft 3ft
0f t
9f t
7f t
3f t
0f t
0f t
16ft 13ft 10f t7ft 3ft
0f t
Air velocity [ft/s]
4.9
3.3
1.6
75
81
75
70
86
91
Discharge angle: 40° Discharge angle : 50°
Cooling
Heating
Discharge angle:45
°Discharge angle:50°
Air velocity [ft/s]
8.9ft
6.6ft
4.0ft
0ft
0ft
3.3ft6.6ft9.8ft13.1ft16.4ft
Temperature [˚F]
2.5
3.3
1.6
77
75.2
73.4
0ft3.3ft6.6ft9.8ft13.1ft16.4ft
8.9ft
6.6ft
4.0ft
0ft
Air velocity [ft/s]
Temperature [˚F]
2.5
3.3
3.9
1.6
82.4
84.2
86
0ft3.3ft6.6ft9.8ft13.1ft16.4ft
0ft3.3ft6.6ft9.8ft13.1ft16.4ft
8.9ft
6.6ft
4.0ft
0ft
8.9ft
6.6ft
4.0ft
0ft










