Multi F Outdoor Unit Engineering Manual

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INTRODUCTION | 3
Introduction
MULTI
F
MAX
MULTI
F
TABLE OF CONTENTS
About LG Electronics, Inc. .................................................................... 4
Multi-Zone Systems ............................................................................... 4
Unit Nomenclature ................................................................................. 6
Outdoor Unit Overview ......................................................................... 7
Indoor Unit Overview ............................................................................ 8
Controls and Options Overview ...................................................... 9-13
Multi F Outdoor Unit Product Data ............................................. 15-124
Product Features and Benets .......................................................... 16
Mechanical Specications ................................................................. 17
General Data ................................................................................ 18-19
Dimensions ................................................................................... 20-22
Rated Cooling Combination Tables .............................................. 23-25
Rated Heating Combination Tables .............................................. 26-28
Cooling Capacity Tables ............................................................... 29-80
Heating Capacity Tables ............................................................. 81-115
Electrical Data ..................................................................................116
Acoustic Data ...................................................................................116
Refrigerant Flow Diagrams ........................................................ 117-119
Wiring Diagrams ....................................................................... 120-122
Operation Range ............................................................................. 123
Multi F MAX Outdoor Unit Product Data ..................................125-168
Product Features and Benets ........................................................ 126
Mechanical Specications ............................................................... 127
General Data ............................................................................ 128-129
Dimensions ...................................................................................... 130
Rated Cooling Combination Tables .......................................... 131-133
Rated Heating Combination Tables .......................................... 134-135
Cooling Capacity Tables ........................................................... 137-153
Heating Capacity Tables ........................................................... 154-164
Electrical Data ................................................................................. 165
Acoustic Data .................................................................................. 165
Refrigerant Flow Diagrams .............................................................. 166
Wiring Diagrams .............................................................................. 167
Operation Range ............................................................................. 168
Multi F MAX Branch Distribution Unit Product Data ...............169-178
Features and Benets ..................................................................... 170
Mechanical Specications ............................................................... 171
General Data ................................................................................... 172
Dimensions ...................................................................................... 173
Refrigerant Flow Diagram ................................................................ 174
Wiring Diagram ................................................................................ 175
Y-Branch Accessory ......................................................................... 176
Branch Distribution Unit Orientation ................................................ 177
Application Guidelines ............................................................... 179-196
Equipment Selection Procedure ............................................... 180-185
Building Ventilation Design Guide ............................................ 186-189
Placement Considerations ........................................................ 190-196
Refrigerant Piping Design & Layout Best Practices ............... 197-218
Design Guideline Summary ...................................................... 198-199
Creating a Balanced / Quality Piping System .................................. 200
Manual Layout Procedure ............................................................... 200
LG Engineered Multi F MAX Y-Branch Kits ..................................... 201
Refrigerant Charge ................................................................... 202-203
Selecting Field-Supplied Copper Tubing .................................. 204-205
Refrigerant Piping System Layout ............................................ 206-213
Piping Insulation .............................................................................. 214
Condensate Drain Piping .......................................................... 215-216
Cut Sheet ......................................................................................... 217
Wiring Connections ........................................................................... 219
General Information .................................................................. 220-222
Power Wiring and Communications Cable Details ................... 223-227
Indoor Unit Group Control ............................................................... 228
Acronyms ........................................................................................... 229
TABLE OF SYMBOLS
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injury.
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about the subject.
This symbol indicates a recommendation or tip. Recommendations instruct the user to apply the suggested
practice to ensure the best operating results in order to achieve the maximum benet of the product. Tips
contain practical information that may help the user solve a problem or describe actions that may save time.