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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.
4 | INTRODUCTION
Ceiling-Concealed Ducted System Engineering Manual
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.
Introduction
TABLE OF CONTENTS
About LG Electronics, Inc. ............................................................................................................................................................................................. 3
Duct-Free Split (DFS) Systems ...................................................................................................................................................................................... 3
Unit Nomenclature .......................................................................................................................................................................................................... 9
Ducted (High Static) System Data .......................................................................................................................................................................... 10-36
Product Features and Benets ................................................................................................................................................................................... 10
General Data ...............................................................................................................................................................................................................11
Electrical Data ............................................................................................................................................................................................................ 13
Dimensions ............................................................................................................................................................................................................ 14-19
Acoustic Data ........................................................................................................................................................................................................ 20-21
External Static Pressure ........................................................................................................................................................................................ 22-23
Refrigerant Flow Diagrams .................................................................................................................................................................................... 24-28
Wiring Diagrams .................................................................................................................................................................................................... 29-34
Accessories ........................................................................................................................................................................................................... 35-36
Performance Data .................................................................................................................................................................................................... 37-44
Cooling Capacity Tables ........................................................................................................................................................................................ 38-41
Heating Capacity Tables ........................................................................................................................................................................................ 42-43
Application Guidelines ............................................................................................................................................................................................ 45-61
Equipment Selection Procedure ............................................................................................................................................................................ 46-47
Building Ventilation Design Guide ......................................................................................................................................................................... 48-52
Placement Considerations ..................................................................................................................................................................................... 53-61
Refrigerant Piping Design & Layout Best Practices ............................................................................................................................................ 62-71
Design Guideline Summary ........................................................................................................................................................................................ 63
Selecting Field-Supplied Copper Tubing .................................................................................................................................................................... 64
Refrigerant Piping System Layout ......................................................................................................................................................................... 65-69
Piping Insulation ......................................................................................................................................................................................................... 70
Condensate Drain Piping ............................................................................................................................................................................................ 71
Electrical and Mechanical Specications ............................................................................................................................................................. 72-77
Wiring Connections ............................................................................................................................................................................................... 72-74
Mechanical Specications ..................................................................................................................................................................................... 76-77
Acronyms ...................................................................................................................................................................................................................... 78
TABLE OF SYMBOLS
DANGER
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.
CAUTION
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.
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