INTRODUCTION | 3
Introduction
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 ............................................. 15-286
Product Features and Benets .......................................................... 16
Mechanical Specications ................................................................. 17
General Data ................................................................................ 18-19
Dimensions ................................................................................... 20-22
Rated Cooling Combination Tables .............................................. 23-30
Rated Heating Combination Tables .............................................. 31-38
Cooling Capacity Tables ............................................................. 39-182
Heating Capacity Tables ........................................................... 183-278
Electrical Data ................................................................................. 279
Acoustic Data .................................................................................. 279
Refrigerant Flow Diagrams ....................................................... 280-282
Wiring Diagrams ....................................................................... 283-285
Operation Range ............................................................................. 286
Multi F MAX Outdoor Unit Product Data ..................................287-330
Product Features and Benets ........................................................ 288
Mechanical Specications ............................................................... 289
General Data ............................................................................ 290-291
Dimensions ...................................................................................... 292
Rated Cooling Combination Tables .......................................... 293-295
Rated Heating Combination Tables .......................................... 296-298
Cooling Capacity Tables ........................................................... 299-315
Heating Capacity Tables ........................................................... 316-326
Electrical Data ................................................................................. 327
Acoustic Data .................................................................................. 327
Refrigerant Flow Diagrams .............................................................. 328
Wiring Diagrams .............................................................................. 329
Operation Range ............................................................................. 330
Multi F MAX Branch Distribution Unit Product Data ...............331-340
Features and Benets ..................................................................... 332
Mechanical Specications ............................................................... 333
General Data ................................................................................... 334
Dimensions ...................................................................................... 335
Refrigerant Flow Diagram ................................................................ 336
Wiring Diagram ................................................................................ 337
Y-Branch Accessory ......................................................................... 338
Branch Distribution Unit Orientation ................................................ 339
Application Guidelines ............................................................... 341-358
Equipment Selection Procedure ............................................... 342-347
Building Ventilation Design Guide ............................................ 348-352
Placement Considerations ........................................................ 353-358
Refrigerant Piping Design & Layout Best Practices ............... 359-380
Design Guideline Summary ...................................................... 360-361
Creating a Balanced / Quality Piping System .................................. 362
Manual Layout Procedure ............................................................... 362
LG Engineered Multi F MAX Y-Branch Kits ..................................... 363
Refrigerant Charge ................................................................... 364-365
Selecting Field-Supplied Copper Tubing .................................. 366-367
Refrigerant Piping System Layout ............................................ 368-375
Piping Insulation .............................................................................. 376
Condensate Drain Piping .......................................................... 377-378
Cut Sheet ......................................................................................... 379
Wiring Connections .................................................................... 381-390
General Information .................................................................. 382-384
Power Wiring and Communications Cable Details ................... 385-389
Indoor Unit Group Control ............................................................... 390
Acronyms ........................................................................................... 391
TABLE OF SYMBOLS
This symbol indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
This symbol indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
This symbol indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury.
Note:
This symbol Indicates situations that may result in equipment or property damage accidents only.
This symbol indicates an action that should not be performed.