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
Cooling Capacity Table
FOUR-WAY CEILING CASSETTE INDOOR UNITS
Table 72:Multi F Four-Way Ceiling-Cassette Indoor Units Cooling Capacity Table.
Model No. /
Nominal Capacity
of Indoor Unit
(Btu/h)
Outdoor Air
Temp.
(°F DB)
Indoor Air Temp. °F DB / °F WB
68 / 57 73 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC
LMCN077HV
7,000
14 6.86 4.87 7.29 5.15 7.71 4.99 8.02 5.09 8.57 5.13 8.99 5.23
20 6.86 4.91 7.28 5.19 7.71 5.02 8.02 5.13 8.56 5.17 8.99 5.27
25 6.85 4.95 7.28 5.23 7.70 5.06 8.01 5.17 8.55 5.21 8.98 5.31
30 6.85 4.99 7.27 5.27 7.70 5.10 8.00 5.21 8.55 5.25 8.97 5.35
35 6.84 5.03 7.27 5.31 7.69 5.14 8.00 5.25 8.54 5.29 8.97 5.39
40 6.84 5.06 7.26 5.35 7.68 5.18 7.99 5.29 8.53 5.33 8.96 5.43
45 6.83 5.10 7.25 5.39 7.68 5.22 7.99 5.33 8.53 5.37 8.95 5.47
50 6.83 5.14 7.25 5.43 7.67 5.26 7.98 5.37 8.52 5.41 8.94 5.52
55 6.82 5.18 7.24 5.47 7.67 5.30 7.97 5.41 8.51 5.45 8.94 5.56
60 6.81 5.21 7.24 5.51 7.66 5.33 7.97 5.45 8.51 5.49 8.93 5.60
65 6.81 5.25 7.23 5.55 7.66 5.37 7.96 5.49 8.50 5.53 8.92 5.64
70 6.80 5.29 7.23 5.59 7.65 5.41 7.95 5.52 8.49 5.57 8.92 5.68
75 6.64 5.20 7.06 5.50 7.48 5.33 7.79 5.45 8.33 5.50 8.75 5.61
80 6.48 5.11 6.90 5.42 7.32 5.26 7.62 5.38 8.16 5.43 8.58 5.55
85 6.31 5.02 6.73 5.33 7.15 5.17 7.46 5.30 7.99 5.36 8.41 5.48
90 6.15 4.93 6.57 5.23 6.99 5.09 7.29 5.21 7.83 5.29 8.24 5.40
95 5.98 4.87 6.39 5.19 6.81 5.05 7.00 5.10 7.64 5.26 8.06 5.38
100 5.83 4.74 6.25 5.05 6.66 4.93 6.91 5.02 7.50 5.14 7.91 5.27
105 5.69 4.61 6.10 4.92 6.52 4.81 6.82 4.94 7.35 5.03 7.77 5.16
110 5.54 4.46 5.96 4.76 6.37 4.66 6.67 4.79 7.21 4.89 7.62 5.02
115 5.39 4.32 5.81 4.63 6.23 4.54 6.53 4.67 7.06 4.77 7.48 4.90
118 5.31 4.29 5.72 4.60 6.14 4.52 6.44 4.65 6.97 4.76 7.39 4.89
122 5.28 4.28 5.69 4.59 6.11 4.51 6.41 4.64 6.94 4.75 7.36 4.89
LMCN097HV
9,000
14 8.82 6.31 9.37 6.66 9.92 6.45 10.31 6.59 11.01 6.64 11.56 6.77
20 8.82 6.36 9.36 6.72 9.91 6.50 10.31 6.64 11.01 6.70 11.55 6.82
25 8.81 6.41 9.36 6.77 9.90 6.55 10.30 6.69 11.00 6.75 11.54 6.87
30 8.80 6.46 9.35 6.82 9.90 6.60 10.29 6.74 10.99 6.80 11.54 6.93
35 8.80 6.50 9.34 6.87 9.89 6.65 10.28 6.79 10.98 6.85 11.53 6.98
40 8.79 6.55 9.33 6.92
9.88 6.70 10.27 6.84 10.97 6.90 11.52 7.03
45 8.78 6.60 9.33 6.97 9.87 6.75 10.27 6.90 10.96 6.95 11.51 7.09
50 8.78 6.65 9.32 7.03 9.87 6.80 10.26 6.95 10.96 7.00 11.50 7.14
55 8.77 6.70 9.31 7.08 9.86 6.85 10.25 7.00 10.95 7.06 11.49 7.19
60 8.76 6.75 9.31 7.13 9.85 6.90 10.24 7.05 10.94 7.11 11.48 7.24
65 8.76 6.80 9.30 7.18 9.84 6.95 10.24 7.10 10.93 7.16 11.47 7.29
70 8.75 6.85 9.29 7.23 9.84 7.00 10.23 7.15 10.92 7.21 11.47 7.35
75 8.54 6.73 9.08 7.12 9.62 6.90 10.01 7.05 10.71 7.12 11.25 7.26
80 8.33 6.62 8.87 7.01 9.41 6.80 9.80 6.96 10.49 7.03 11.03 7.18
85 8.12 6.50 8.66 6.89 9.20 6.70 9.59 6.85 10.28 6.94 10.82 7.09
90 7.91 6.37 8.45 6.77 8.99 6.59 9.37 6.75 10.06 6.84 10.60 6.99
95 7.68 6.31 8.22 6.71 8.75 6.54 9.00 6.60 9.83 6.80 10.36 6.96
100 7.50 6.14 8.03 6.54 8.57 6.38 8.88 6.50 9.64 6.66 10.17 6.82
105 7.31 5.97 7.84 6.37 8.38 6.23 8.77 6.40 9.45 6.51 9.99 6.68
110 7.12 5.77 7.66 6.17 8.19 6.03 8.58 6.20 9.26 6.33 9.80 6.50
115 6.94 5.59 7.47 5.99 8.01 5.87 8.39 6.05 9.08 6.18 9.61 6.35
118 6.82 5.55 7.36 5.96 7.89 5.84 8.28 6.02 8.96 6.15 9.50 6.33
122 6.79 5.54 7.32 5.94 7.86 5.83 8.24 6.01 8.93 6.15 9.46 6.32
TC = Total Capacity (kBtu/h).
SHC: Sensible Heat Capacity (kBtu/h).
Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor
units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and
67ºF wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB).
The shaded table columns and rows indicate reference data. When operating at this temperature, these
values can be different if the system is not running consistently.
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.
134 | CEILING-CASSETTE
Multi F and Multi F MAX Indoor Unit Engineering Manual
MULTI
F
MAX
MULTI
F