Table Of Contents - LG MULTI F Engineering Manual

F
MULTI
F
MULTI MAX
Convergence of Technology,
Innovation, Flexibility, & Style ....................................................4
Unit Nomenclature .......................................................................6
Outdoor Unit Overview ...............................................................7
Indoor Unit Overview ..................................................................8
Controls and Options Overview .................................................9
Art Cool Mirror Indoor Units .....................................................16
Mechanical Specifications and Features ........................................... 16
General Data / Specifications ............................................................ 17
Dimensions ........................................................................................ 18
Cooling Capacity Table ...................................................................... 20
Heating Capacity Table ...................................................................... 22
Acoustic Data .................................................................................... 23
Air Velocity and Temperature Distribution .......................................... 25
Refrigerant Flow Diagram .................................................................. 26
Wiring Diagram .................................................................................. 27
Factory Supplied Parts and Materials ................................................ 29
Installation and Best Layout Practices ............................................... 30
Art Cool Gallery Indoor Units ...................................................38
Mechanical Specifications and Features ........................................... 38
General Data / Specifications ............................................................ 39
Dimensions ........................................................................................ 40
Cooling Capacity Table ...................................................................... 41
Heating Capacity Table ...................................................................... 42
Acoustic Data .................................................................................... 43
Air Velocity and Temperature Distribution .......................................... 44
Refrigerant Flow Diagram .................................................................. 45
Wiring Diagram .................................................................................. 46
Factory Supplied Parts and Materials ................................................ 47
Installation and Best Layout Practices ............................................... 48
Standard Wall-Mounted Indoor Units ......................................58
Mechanical Specifications and Features ........................................... 58
General Data / Specifications ............................................................ 59
Dimensions ........................................................................................ 60
Cooling Capacity Table ...................................................................... 64
Heating Capacity Table ...................................................................... 67
Acoustic Data .................................................................................... 69
Air Velocity and Temperature Distribution .......................................... 71
Refrigerant Flow Diagram .................................................................. 74
Wiring Diagram .................................................................................. 75
Factory Supplied Parts and Materials ................................................ 79
Installation and Best Layout Practices ............................................... 80
Duct (Low Static) Indoor Units .................................................90
Mechanical Specifications and Features ........................................... 90
General Data / Specifications ............................................................ 91
Dimensions ........................................................................................ 92
Cooling Capacity Table ...................................................................... 93
Heating Capacity Table ...................................................................... 95
External Static Pressure .................................................................... 96
Acoustic Data .................................................................................... 97
Refrigerant Flow Diagrams ................................................................ 98
Wiring Diagram ................................................................................ 100
Factory Supplied Parts and Materials .............................................. 101
Installation and Best Layout Practices ............................................. 102

TABLE OF CONTENTS

Duct (High Static) Indoor Units .............................................. 112
Mechanical Specifications and Features ......................................... 112
General Data / Specifications .......................................................... 113
Dimensions ...................................................................................... 114
Cooling Capacity Table .................................................................... 115
Heating Capacity Table .................................................................... 116
External Static Pressure / Acoustic Data ......................................... 117
Refrigerant Flow Diagrams .............................................................. 118
Wiring Diagrams .............................................................................. 119
Factory Supplied Parts and Materials / Installation ......................... 120
Installation and Best Layout Practices ............................................. 121
Four-Way Ceiling Cassette Indoor Units ...............................130
Mechanical Specifications and Features ......................................... 130
General Data / Specifications .......................................................... 131
Dimensions ...................................................................................... 132
Dimensions ...................................................................................... 133
Cooling Capacity Table .................................................................... 134
Heating Capacity Table .................................................................... 136
Acoustic Data .................................................................................. 138
Air Velocity and Temperature Distribution ........................................ 140
Refrigerant Flow Diagram ................................................................ 142
Wiring Diagram ................................................................................ 143
Factory Supplied Parts and Materials .............................................. 144
Installation and Best Layout Practices ............................................. 145
Vertical-Horizontal Indoor Units .............................................154
Mechanical Specifications and Features ......................................... 154
General Data / Specifications .......................................................... 155
Dimensions ...................................................................................... 156
Cooling Capacity Table .................................................................... 157
Heating Capacity Table .................................................................... 158
External Static Pressure .................................................................. 159
Acoustic Data .................................................................................. 160
Refrigerant Flow Diagram ................................................................ 161
Wiring Diagram ................................................................................ 162
Factory Supplied Parts and Materials .............................................. 164
Installation and Best Layout Practices ............................................. 165
Application Guidelines ............................................................174
Equipment Selection Procedure ...................................................... 174
Building Ventilation Design Guide ................................................... 180
Placement Considerations ............................................................... 185
Refrigerant Piping Design ......................................................192
Design Guideline Summary ............................................................. 192
Design Guideline Summary ............................................................. 193
Creating a Balanced System / Manual Layout Procedure
LG Engineered Multi F MAX Y-Branch Kit ....................................... 195
Refrigerant Charge .......................................................................... 196
Installation & Layout Best Practices .....................................199
Selecting Field-Supplied Copper Tubing ......................................... 199
Refrigerant Piping System Layout ................................................... 200
Piping Insulation .............................................................................. 208
Condensate Drain Piping ................................................................. 209
Y-Branch Kit ..................................................................................... 211
Wiring Connections .................................................................214
General Information ......................................................................... 214
Power Wiring (208-230V) and
Communications Cable Details ....................................................... 217
Indoor Unit Group Control ............................................................... 222
Acronyms .................................................................................223
194
INTRODUCTION | 3