Page 1 MULTI MULTI INDOOR UNIT ENGINEERING MANUAL Art Cool Mirror Wall-Mounted Art Cool Gallery Wall-Mounted Ceiling-Concealed Duct (High Static) Four-Way Ceiling Cassette Indoor Units for Multi-Zone Heat Pump Systems 7,000 to 36,000 Btu/h...
Page 2 This symbol Indicates situations that may result in equipment or property damage accidents only. This symbol indicates an action that should not be performed. This document, as well as all reports, illustrations, data, information, and other materials are the property of LG Electronics U.S.A., Inc.
Page 3: Table Of Contents
Installation and Best Layout Practices ..........80 Creating a Balanced System / Manual Layout Procedure Duct (Low Static) Indoor Units ..........90 LG Engineered Multi F MAX Y-Branch Kit ........195 Mechanical Specifications and Features ........... 90 Refrigerant Charge ................196 General Data / Specifications ............
Page 4: Convergence Of Technology, Innovation, Flexibility, & Style
Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 4 | INTRODUCTION...
Page 5: Product Introduction
PRODUCT INTRODUCTION “Unit Nomenclature” on page 6 “Outdoor Unit Overview” on page 7 “Indoor Unit Overview” on page 8 “Controls and Options Overview” on page 9...
Page 6: Unit Nomenclature
• Compatible single zone IDU nomenclature is listed in the Single Zone Wall-Mounted IDU Engineering Manual. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 6 | INTRODUCTION...
Page 7: Multi Fmulti Fmax
Minimum number of connectable indoor units is two (2). Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. INTRODUCTION | 7...
Page 8: Indoor Unit Overview
Nominal 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). H/M/L = High/Medium/Low. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 8 | INTRODUCTION...
Page 9: Controls And Options Overview
PRARS0 units. 2.7°F above setpoint. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. INTRODUCTION | 9...
Page 10 For information on controller capabilities, refer to the Controls and Options Table on page 12. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 10 | INTRODUCTION...
Page 11 For information on controller capabilities, refer to the Controls and Options Table on page 12. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. INTRODUCTION | 11...
Page 12 Branch location and static pressure requirements. Requires PTPKQ0 Plasma kit. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 12 | INTRODUCTION...
Page 13 Dynamic V8 Air Cleaner Egg Crate Return Air Grille (one per plenum) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. INTRODUCTION | 13...
Page 14 MULTI MULTI Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 14 | INTRODUCTION...
Page 15 ART COOL MIRROR ™ INDOOR UNIT DATA “Mechanical Specifications” on page 16 “General Data / Specifications” on page 17 “Dimensions” on page 18 “Cooling Capacity Table” on page 20 “Heating Capacity Table” on page 22 “Acoustic Data” on page 23 “Air Velocity and Temperature Distribution”...
Page 16: Art Cool Mirror Indoor Units
• Auto restart operation 16 | ART COOL MIRROR Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 17: General Data / Specifications
ART COOL MIRROR | 17 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 18: Dimensions
Supply Air Vane 18 | ART COOL MIRROR Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 19 Supply Air Vane ART COOL MIRROR | 19 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 20: Cooling Capacity Table
Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. 20 | ART COOL MIRROR Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 21 Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. ART COOL MIRROR | 21 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 22: Heating Capacity Table
Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. 22 | ART COOL MIRROR Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 23: Acoustic Data
Octave Band Center Frequency (Hz) ART COOL MIRROR | 23 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 24: Air Velocity And Temperature Distribution
16ft 13ft 10ft 24 | ART COOL MIRROR Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 25: Air Velocity And Temperature Distribution
16ft 13ft 10ft ART COOL MIRROR | 25 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 26: Refrigerant Flow Diagram
Water Level Sensor (Optional) CN-TH3 26 | ART COOL MIRROR Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 27: Wiring Diagram
Figure 10: Multi F Art Cool Mirror LMAN097HVT and LMAN127HVT Indoor Units Wiring Diagram. ART COOL MIRROR | 27 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 28 Figure 11: Multi F Art Cool Mirror LMAN187HVT Indoor Unit Wiring Diagram. 28 | ART COOL MIRROR Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 29: Factory Supplied Parts And Materials
• Installation work must be performed by authorized personnel and in accordance with the national wiring standards and all local codes. ART COOL MIRROR | 29 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 30: Installation And Best Layout Practices
30 | ART COOL MIRROR Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 31: Preparing For Installation
Down Drain hose ART COOL MIRROR | 31 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 32 Check for leaks 32 | ART COOL MIRROR Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 33 1(L1 ) 2(L2) ART COOL MIRROR | 33 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 34 Installation and Best Layout Practices Controller Options Art Cool Mirror wall-mounted indoor units include a wireless controller (AKB73635606), but optional LG-supplied wired controllers are avail- able (see Controls and Options overview on pages 9 to 12 in this manual’s Introduction section).
Page 35 • An area where temperatures are uncontrolled, such as an outside wall ART COOL MIRROR | 35 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 36 6. Replace the frame cover. Filter 36 | ART COOL MIRROR Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 37 ART COOL GALLERY ™ INDOOR UNIT DATA “Mechanical Specifications” on page 38 “General Data / Specifications” on page 39 “Dimensions” on page 40 “Cooling Capacity Table” on page 41 “Heating Capacity Table” on page 42 “Acoustic Data” on page 43 “Air Velocity and Temperature Distribution”...
Page 38: Art Cool Gallery Indoor Units
• Auto operation / auto restart operation 38 | ART COOL GALLERY™ Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 39: General Data / Specifications
ART COOL GALLERY™ | 39 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 40: Dimensions
Discharge Air Grille 40 | ART COOL GALLERY™ Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 41: Cooling Capacity Table
Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. ART COOL GALLERY™ | 41 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 42: Heating Capacity Table
Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. 42 | ART COOL GALLERY™ Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 43: Acoustic Data
Octave Band Center Frequency (Hz) ART COOL GALLERY™ | 43 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 44: Air Velocity And Temperature Distribution
3f t 0f t 44 | ART COOL GALLERY™ Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 45: Refrigerant Flow Diagram
Water Level Sensor (Optional) CN-TH3 ART COOL GALLERY™ | 45 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 46: Wiring Diagram
Figure 47: Multi F Art Cool Gallery Indoor Units Wiring Diagram. 46 | ART COOL GALLERY™ Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 47: Factory Supplied Parts And Materials
• Installation work must be performed by authorized personnel and in accordance with the national wiring standards and all local codes. ART COOL GALLERY™ | 47 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 48: Installation And Best Layout Practices
Appropriate anti-corrosion methods should be taken for the unit and all components. 48 | ART COOL GALLERY™ Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 49 Rubber Stopper Hose ART COOL GALLERY™ | 49 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 50 Plastic Anchors 50 | ART COOL GALLERY™ Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 51 Drain extension ART COOL GALLERY™ | 51 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 52 1(L1) 2(L2) 3(C) 52 | ART COOL GALLERY™ Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 53 Depending on the indoor unit model, some functions may not be supported. ART COOL GALLERY™ | 53 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 54 Wall Wall 54 | ART COOL GALLERY™ Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 55 ART COOL GALLERY™ | 55 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 56 MULTI MULTI 56 | ART COOL GALLERY™ Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 57 STANDARD WALL-MOUNTED INDOOR UNIT DATA “Mechanical Specifications” on page 58 “General Data / Specifications” on page 59 “Dimensions” on page 60 “Cooling Capacity Table” on page 64 “Heating Capacity Table” on page 67 “Acoustic Data” on page 69 “Air Velocity and Temperature Distribution” on page 71 “Refrigerant Flow Diagram”...
Page 58: Standard Wall-Mounted Indoor Units
• Auto restart operation 58 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 59: General Data / Specifications
STD. WALL-MOUNTED | 59 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 60: Dimensions
Return Air Inlet Supply Air Vane 60 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 61 Supply Air Vane Supply Air Vane STD. WALL-MOUNTED | 61 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 62 Right rear piping Return Air Grille 62 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 63 Return Air Grille 2-1/32 STD. WALL-MOUNTED | 63 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 64: Cooling Capacity Table
Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. 64 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 65 Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. STD. WALL-MOUNTED | 65 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 66 Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. 66 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 67: Heating Capacity Table
Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. STD. WALL-MOUNTED | 67 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 68 Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. 68 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 69: Acoustic Data
Octave Band Center Frequency (Hz) STD. WALL-MOUNTED | 69 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 70 Octave Band Center Frequency (Hz) 70 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 71: Air Velocity And Temperature Distribution
13.1ft 9.8ft 6.6ft 3.3ft STD. WALL-MOUNTED | 71 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 72 3f t 0f t 72 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 73 3f t 0f t STD. WALL-MOUNTED | 73 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 74: Refrigerant Flow Diagram
Water Level Sensor (Optional) CN-TH3 74 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 75: Wiring Diagram
Figure 85:Multi F Standard Wall-Mounted LMN077HVT and LMN157HVT Indoor Units Wiring Diagram. STD. WALL-MOUNTED | 75 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 76 Figure 86: Multi F Standard Wall-Mounted LMN247HVT Indoor Unit Wiring Diagram. 76 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 77 Figure 87:Multi F Standard Wall-Mounted LSN090HSV4 and LSN120HSV4 Indoor Units Wiring Diagram. STD. WALL-MOUNTED | 77 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 78 Figure 88: Multi F Standard Wall-Mounted LSN180HSV4 Indoor Unit Wiring Diagram. 78 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 79: Factory Supplied Parts And Materials
• Installation work must be performed by authorized personnel and in accordance with the national wiring standards and all local codes. STD. WALL-MOUNTED | 79 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 80: Installation And Best Layout Practices
80 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 81 Back Down Drain hose STD. WALL-MOUNTED | 81 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 82 Check for leaks 82 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 83 3 or S 1(L1) STD. WALL-MOUNTED | 83 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 84 Depending on the indoor unit model, some functions may not be supported. 84 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 85 * Some functions may not be supported, depending on the model. STD. WALL-MOUNTED | 85 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 86 • An area where temperatures are uncontrolled, such as an outside wall 86 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 87 6. Replace the frame cover. Filter STD. WALL-MOUNTED | 87 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 88 MULTI MULTI 88 | STD. WALL-MOUNTED Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 89 CEILING-CONCEALED DUCT (LOW STATIC) INDOOR UNIT DATA “Mechanical Specifications” on page 90 “General Data / Specifications” on page 91 “Dimensions” on page 92 “Cooling Capacity Table” on page 93 “Heating Capacity Table” on page 95 “External Static Pressure” on page 96 “Acoustic Data”...
Page 90: Duct (Low Static) Indoor Units
• External static pressure control 90 | DUCT (LOW STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 91: General Data / Specifications
This unit comes with a dry helium charge. DUCT (LOW STATIC) | 91 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 92: Dimensions
L2 : 3-1/16 92 | DUCT (LOW STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 93: Cooling Capacity Table
Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. DUCT (LOW STATIC) | 93 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 94 Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. 94 | DUCT (LOW STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 95: Heating Capacity Table
Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. DUCT (LOW STATIC) | 95 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 96: External Static Pressure
• Table data is based at 230V. Air flow rate varies according to voltage fluctuation. 96 | DUCT (LOW STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 97: Acoustic Data
Octave Band Center Frequency (Hz) DUCT (LOW STATIC) | 97 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 98: Refrigerant Flow Diagrams
Evaporator Outlet Temperature Thermistor CN-PIPE/OUT 98 | DUCT (LOW STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 99: Indoor Unit
Evaporator Outlet Temperature Thermistor CN-PIPE/OUT DUCT (LOW STATIC) | 99 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 100: Wiring Diagram
Figure 128:Multi F Ceiling-Concealed Duct (Low Static) LMDN096HV, LMDN126HV, and LMDN186HV Indoor Units Wiring Diagram. 100 | DUCT (LOW STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 101: Factory Supplied Parts And Materials
• Installation work must be performed by authorized personnel and in accordance with the national wiring standards and all local codes. DUCT (LOW STATIC) | 101 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 102: Installation And Best Layout Practices
LMDN186HV / 18,000 102 | DUCT (LOW STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 103 • Tighten the nuts and bolts to prevent the unit from falling. DUCT (LOW STATIC) | 103 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 104 104 | DUCT (LOW STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 105 Ensure no gaps are present. DUCT (LOW STATIC) | 105 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 106 4. Tighten the conduit and the conduit mounting plate together. 106 | DUCT (LOW STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 107 Comm. Power Ground DUCT (LOW STATIC) | 107 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 108 • An area where temperatures are uncontrolled, such as an outside wall 108 | DUCT (LOW STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 109 • Factory set to pressure selection F-H. DUCT (LOW STATIC) | 109 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 110 (external static pressure setting value is saved). 110 | DUCT (LOW STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 111 CEILING-CONCEALED DUCT (HIGH STATIC) INDOOR UNIT DATA “Mechanical Specifications” on page 112 “General Data / Specifications” on page 113 “Dimensions” on page 114 “Cooling Capacity Table” on page 115 “Heating Capacity Table” on page 116 “External Static Pressure” on page 117 “Acoustic Data”...
Page 112: Duct (High Static) Indoor Units
• External static pressure control 112 | DUCT (HIGH STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 113: General Data / Specifications
DUCT (HIGH STATIC) | 113 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 114: Dimensions
Figure 156: LMHN240HV and LMHN360HV Dimensions. 114 | DUCT (HIGH STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 115: Cooling Capacity Table
Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. DUCT (HIGH STATIC) | 115 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 116: Heating Capacity Table
Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. 116 | DUCT (HIGH STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 117: External Static Pressure / Acoustic Data
Octave Band Center Frequency (Hz) DUCT (HIGH STATIC) | 117 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 118: Refrigerant Flow Diagrams
Evaporator Outlet Temperature Thermistor CN-PIPE/OUT 118 | DUCT (HIGH STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 119: Wiring Diagrams
Figure 161: Multi F Ceiling-Concealed Duct (High Static) LMHN360HV Indoor Units Wiring Diagram. DUCT (HIGH STATIC) | 119 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 120: Factory Supplied Parts And Materials / Installation
The unit may be damaged, may malfunction, and / or will not operate as designed if installed in any of the conditions listed. 120 | DUCT (HIGH STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 121: Installation And Best Layout Practices
LMHN360HV / 36,000 DUCT (HIGH STATIC) | 121 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 122 Do not apply force or twist the drain hose, it may leak. 122 | DUCT (HIGH STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 123 Ensure no gaps are present. DUCT (HIGH STATIC) | 123 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 124 124 | DUCT (HIGH STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 125 (ground wire) terminals from the remote controller to the indoor unit terminal Comm. blocks. DUCT (HIGH STATIC) | 125 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 126 126 | DUCT (HIGH STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 127 • Factory set to pressure selection F-H. DUCT (HIGH STATIC) | 127 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 128 (external static pressure setting value is saved). 128 | DUCT (HIGH STATIC) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 129 FOUR-WAY CEILING-CASSETTE INDOOR UNIT DATA “Mechanical Specifications” on page 130 “General Data / Specifications” on page 131 “Dimensions” on page 132 “Cooling Capacity Table” on page 134 “Heating Capacity Table” on page 136 “Acoustic Data” on page 138 “Air Velocity and Temperature Distribution” on page 140 “Refrigerant Flow Diagram”...
Page 130: Four-Way Ceiling Cassette Indoor Units
• Auto operation 130 | CEILING-CASSETTE Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 131: General Data / Specifications
This unit comes with a dry helium charge. CEILING-CASSETTE | 131 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 132: Dimensions
Figure 186:LMCN077HV, LMCN097HV, and LMCN125HV Dimensions. Supply Air Vane 132 | CEILING-CASSETTE Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 133: Dimensions
Figure 187: LMCN185HV Dimensions. Supply Air Vane CEILING-CASSETTE | 133 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 134: Cooling Capacity Table
Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. 134 | CEILING-CASSETTE Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 135 Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. CEILING-CASSETTE | 135 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 136: Heating Capacity Table
Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. 136 | CEILING-CASSETTE Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 137 Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. CEILING-CASSETTE | 137 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 138: Acoustic Data
Octave Band Center Frequency (Hz) 138 | CEILING-CASSETTE Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 139 Octave band center frequency (Hz) CEILING-CASSETTE | 139 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 140: Air Velocity And Temperature Distribution
0f t 5 ft 8 ft 140 | CEILING-CASSETTE Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 141 13ft 13ft 10ft 10ft 13ft CEILING-CASSETTE | 141 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 142: Refrigerant Flow Diagram
Evaporator Outlet Temperature Thermistor CN-PIPE/OUT 142 | CEILING-CASSETTE Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 143: Wiring Diagram
Figure 196: Multi F Four-Way Ceiling-Cassette Indoor Unit Wiring Diagram. CEILING-CASSETTE | 143 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 144: Factory Supplied Parts And Materials
• Installation work must be performed by authorized personnel and in accordance with the national wiring standards and all local codes. 144 | CEILING-CASSETTE Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 145: Installation And Best Layout Practices
Ventilation Grille CEILING-CASSETTE | 145 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 146 146 | CEILING-CASSETTE Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 147 • After the test is complete, connect the flexible drain hose to the indoor unit drain port. Drain Pan CEILING-CASSETTE | 147 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 148 • Compressor will not receive the proper starting current. 148 | CEILING-CASSETTE Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 149 (i.e., a conduit cannot be used). CEILING-CASSETTE | 149 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 150 1(L1 ) 2(L2) To Wired Controller 150 | CEILING-CASSETTE Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 151 CEILING-CASSETTE | 151 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 152 152 | CEILING-CASSETTE Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 153 VERTICAL-HORIZONTAL AIR HANDLING INDOOR UNIT DATA “Mechanical Specifications” on page 154 “General Data / Specifications” on page 155 “Dimensions” on page 156 “Cooling Capacity Table” on page 157 “Heating Capacity Table” on page 158 “External Static Pressure” on page 159 “Acoustic Data”...
Page 154: Vertical-Horizontal Indoor Units
• External static pressure control 154 | VERTICAL-HORIZONTAL Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 155: General Data / Specifications
This unit comes with a dry helium charge. VERTICAL-HORIZONTAL | 155 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 156: Dimensions
Figure 220: LMVN240HV and LMVN360HV Dimensions. 2-1/16 2-1/8 9-15/16 156 | VERTICAL-HORIZONTAL Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 157: Cooling Capacity Table
Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. VERTICAL-HORIZONTAL | 157 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 158: Heating Capacity Table
Corresponding refrigerant piping length is accordance with standard length of each outdoor unit. 158 | VERTICAL-HORIZONTAL Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 159: External Static Pressure
• Factory tested with MERV 4 filter media. Fan speed set value when the unit is used with field-supplied filter media. VERTICAL-HORIZONTAL | 159 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 160: Acoustic Data
Octave Band Center Frequency (Hz) 160 | VERTICAL-HORIZONTAL Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 161: Refrigerant Flow Diagram
Evaporator Outlet Temperature Thermistor CN-PIPE/OUT VERTICAL-HORIZONTAL | 161 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 162: Wiring Diagram
Dry contact Dry contact line 162 | VERTICAL-HORIZONTAL Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 163 • SW6 OFF: Manual heater operation. (On / off operation is set manually. Heater operation follows the heater algorithm.) VERTICAL-HORIZONTAL | 163 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 164: Factory Supplied Parts And Materials
Also, add a ceiling grille for ventilation. 164 | VERTICAL-HORIZONTAL Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 165: Installation And Best Layout Practices
1-9/16 17-1/2 12-1/8 1-11/16 36,000 VERTICAL-HORIZONTAL | 165 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 166: Horizontal Installation
To ensure proper drainage for horizontal installations, unit must be installed within ±1/8 inches level of the unit’s length and width. 166 | VERTICAL-HORIZONTAL Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 167 Drain Piping Field-Supplied Drain Pan VERTICAL-HORIZONTAL | 167 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 168: Refrigerant Piping Insulation
Gaps Should Not be Present Connection for Vapor Piping 168 | VERTICAL-HORIZONTAL Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 169 3 or S 1(L1 ) 2 (L2) VERTICAL-HORIZONTAL | 169 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 170 Wired Controller Connections Controllers can connect to the indoor unit in one of two different ways. 1. LG Wired Remote Extension Cable with Molex plug (PZCWRC1; sold separately) that connects to the CN-REMO terminal on the indoor unit PCB. 2. Field-supplied controller cable that connects to the indoor unit terminal block (must be at least UL2547 or UL1007, 22 AWG, two-core, one-shield core, at least FT-6 rated if local electric and building codes require plenum cable usage).
Page 171 VERTICAL-HORIZONTAL | 171 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 172 MULTI MULTI 172 | VERTICAL-HORIZONTAL Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 173 APPLICATION GUIDELINES “Equipment Selection Procedure” on page 174 “Building Ventilation Design Guide” on page 180 “Placement Considerations” on page 185...
Page 174: 174 | Application Guidelines
(if applicable) for each indoor unit. Avoid oversizing indoor units in an attempt to increase the air exchange rate in the space. Multi F and Multi F MAX systems are designed for minimum airflow over the coil to maximize latent capacity while cooling, maintain a comfortable, consistent discharge air temperature while heating, and minimize fan motor power consumption.
Page 175 In some designs, oversized indoor units may be unavoidable in the case where the smallest size indoor unit available from LG is larger than what is necessary to satisfy the zone load. This scenario may also occur when an indoor unit selection one size down from the selected unit is slightly short of fulfilling the design load requirements, and the designer must choose the next larg- est size unit.
Page 176 To evaluate the total outdoor unit capacity at design conditions perform a selection using LATS Multi F software (preferred method) or refer- ence the Performance Data Capacity Tables found in the Multi F outdoor unit section in this manual. All design temperatures are not explicitly shown in the charts, therefore, interpolation may be necessary to calculate the capacity for specific design conditions.
Page 177 EQUIPMENT SELECTION PROCEDURE MULTI Using the System Combination Tables Multi F system combination tables illustrate how each indoor unit receives a percentage of total outdoor unit rated capacity. Allocation is based on: • Combinations of Non-Ducted Indoor Units • Combinations of Ducted Indoor Units •...
Page 178 98.8 49.2 95.7 97.6 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 178 | APPLICATION GUIDELINES...
Page 179 • Verify that the sensible load of the zone is satisfied. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. APPLICATION GUIDELINES | 179...
Page 180: Building Ventilation Design Guide
LG Electronics, U.S.A., Inc., In all cases, the designer, installer, and contractor should understand if the suggested method is used, it is used at their own risk. LG Electronics U.S.A., Inc., takes no responsibility and offers no warranty, expressed or implied, of merchantability or fitness of purpose if this method fails to perform as stated or intended.
Page 181 OA Wall Louver Damper Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. APPLICATION GUIDELINES | 181...
Page 182 Method 3: Unconditioned Outdoor Air Ducted to Indoor Units Untreated outdoor air is channeled through a duct system that is piped to the return air duct on Multi F ducted indoor units or to the frame of Multi F four-way cassettes.
Page 183 Method 4: Coupled Dedicated Outdoor Air (CDOA) A separate, dedicated outdoor air system delivers air directly to a Multi F indoor unit or to the return air duct system. After mixing with the return air stream, ventilation air passes through the indoor unit and into the conditioned space. The pretreatment system is capable of filtering, conditioning, and dehumidifying outdoor air to room neutral conditions.
Page 184 Ceiling Diffuser Air Unit Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 184 | APPLICATION GUIDELINES...
Page 185: Placement Considerations
Selecting the Best Location for the Branch Distribution (BD) Unit Branch Distribution (BD) units are used only with Multi F MAX systems to distribute the refrigerant from the outdoor unit to up to eight indoor units. Select location indoors that will meet the following conditions: •...
Page 186 Consider tie-down requirements in case of high winds or where required by local codes. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 186 | APPLICATION GUIDELINES...
Page 187 13/16 Unit: Inch Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. APPLICATION GUIDELINES | 187...
Page 188 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 188 | APPLICATION GUIDELINES...
Page 189 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. APPLICATION GUIDELINES | 189...
Page 190 Minimum 23-19/32" Minimum 39-3/8" Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 190 | APPLICATION GUIDELINES...
Page 191: Refrigerant Piping
“Design Guideline Summary” on page 192 “Creating a Balanced / Quality Piping System” on page 194 “Manual Layout Procedure” on page 194 “LG Engineered Multi F MAX Y-Branch Kits” on page 195 “Refrigerant Charge” on page 196 “Selecting Field-Supplied Copper Tubing” on page 198 “Refrigerant Piping System Layout”...
Page 192: Refrigerant Piping Design
The following are examples of manual pipe size calculations. Designers are highly encouraged to use LATS for Multi F systems. Device Connection Limitations • The minimum number of connected and operating indoor units to Multi F / Multi F MAX systems is two, taking into consideration of the minimum combination ratio.
Page 193: Design Guideline Summary
REFRIGERANT PIPING DESIGN MULTI Design Guideline Summary The following are examples of manual pipe size calculations. Designers are highly encouraged to use LATS for Multi F systems. Multi F MAX System with One Branch Distribution Unit Example: LMU540HV outdoor unit with four (4) indoor units, and one (1) branch distribution unit connected.
Page 194: Creating A Balanced System / Manual Layout Procedure
7. Verify the size of the liquid and vapor lines. 8. If a Multi F MAX system, refer to the branch distribution unit information on page 205 and the Y-branch kit information on page 211 to verify the part number of each Y-branch and branch distribution unit based on the connected downstream nominal capacity served.
Page 195: Lg Engineered Multi F Max Y-Branch Kit
Field-Installed Piping Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. DESIGN & PRACTICES | 195...
Page 196: Refrigerant Charge
REFRIGERANT PIPING DESIGN MULTI Refrigerant Charge LG Multi F and Multi F MAX outdoor units ship from the factory with a charge of Table 111:Outdoor Unit Factory Charge. R410A refrigerant. A trim charge may need to be added to take into account...
Page 197 = 20.43 oz. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. DESIGN & PRACTICES | 197...
Page 198 Inches to feet conversion (12 in./ft.) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 198 | DESIGN & PRACTICES...
Page 199: Installation & Layout Best Practices
Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. DESIGN & PRACTICES | 199...
Page 200: Refrigerant Piping System Layout
Reclamation of refrigerant, then, can be restricted to a single indoor unit. For Multi F MAX systems, position valves with a minimum distance of three (3) to six (6) inches of pipe on either side of the valve, and placed between six (6) and twelve (12) inches from the first upstream Y-branch or branch distribution unit.
Page 201 A + B ~ 12" – 19" Max. 12" Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. DESIGN & PRACTICES | 201...
Page 202 Hexagonal Nut Refrigerant Pipe Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 202 | DESIGN & PRACTICES...
Page 203: Pipe Sleeves At Penetrations
Insulation thickness (value in parenthesis) = 3/4 inch. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. DESIGN & PRACTICES | 203...
Page 204 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 204 | DESIGN & PRACTICES...
Page 205 Ø1/4 → Ø3/8 Connection Socket Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. DESIGN & PRACTICES | 205...
Page 206 Field Piping Torque wrench Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 206 | DESIGN & PRACTICES...
Page 207 Indoor Unit Piping 71.6-87.5 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. DESIGN & PRACTICES | 207...
Page 208: Piping Insulation
Check the fit of the insulation jacket after the header fitting and all run-out pipes are installed. Mark all pipes at the point where the insulation jacket ends. Remove the jacket. Install field provided insulation on the run-out and main trunk pipes first. Install the LG-pro- vided insulation plugs on the ends of all unused header ports.
Page 209: Condensate Drain Piping
Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. DESIGN & PRACTICES | 209...
Page 210 Not Required Requir ed Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 210 | DESIGN & PRACTICES...
Page 211: Y-Branch Kit
Pipe Joints Field-Installed Piping Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. DESIGN & PRACTICES | 211...
Page 212 MULTI MULTI Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 212 | DESIGN & PRACTICES...
Page 213 WIRING CONNECTIONS “General Information” on page 214 “Power Wiring (208-230V) and Communications Cable Details” on page 217 “Indoor Unit Group Control” on page 222...
Page 214: Wiring Connections
Power Wiring and Communications Cable Installation For both Multi F and Multi F MAX systems, power is wired to the outdoor unit only. The outdoor unit will supply power to the branch distribu- tion units (Multi F MAX systems only) and the indoor units through the power wiring / communications cable.
Page 215 Always include some allowance in the wiring length when terminating. Provide some slack to facilitate removing the electrical panels while servicing. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. WIRING CONNECTIONS | 215...
Page 216 Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 216 | WIRING CONNECTIONS...
Page 217: Power Wiring (208-230V) And Communications Cable Details
Indoor unit D Conduit (field supply) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. WIRING CONNECTIONS | 217...
Page 218 • Wiring cable size must comply with applicable national, state, and local codes. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 218 | WIRING CONNECTIONS...
Page 219 • Wiring cable size must comply with applicable national, state, and local codes. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. WIRING CONNECTIONS | 219...
Page 220 • Wiring cable size must comply with applicable national, state, and local codes. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 220 | WIRING CONNECTIONS...
Page 221 • Wiring cable size must comply with applicable national, state, and local codes. Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. WIRING CONNECTIONS | 221...
Page 222: Indoor Unit Group Control
• Control of air flow rate (High/Medium/Low) Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. 222 | WIRING CONNECTIONS...
Page 223: Acronyms
High / Medium / Low Ventilation Rate Procedure Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp. WIRING CONNECTIONS | 223...
Page 224 20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics Products Support LG Electronics, U.S.A., Inc. EM-MultiFIDU-01-15 1-888-865-3026 USA Commercial Air Conditioning Division Supersedes EM-MultiFIDU-06-14 Follow the prompts for HVAC products. 11405 Old Roswell Road Supersedes DFS-EM-AJ-002-US 014A03 Alpharetta, Georgia 30009 Supersedes DFS-EM-AJ-002-US 013M09 www.lghvac.com...

LG MULTI F Engineering Manual

Convergence of Technology, Innovation, Flexibility, & Style

Unit Nomenclature

Outdoor Unit Overview

Indoor Unit Overview

Controls and Options Overview

Art Cool Mirror Indoor Units

Art Cool Gallery Indoor Units

Standard Wall-Mounted Indoor Units

Duct (Low Static) Indoor Units

Duct (High Static) Indoor Units

Four-Way Ceiling Cassette Indoor Units

Vertical-Horizontal Indoor Units

174 | Application Guidelines

Refrigerant Piping Design

Installation & Layout Best Practices

Wiring Connections

Acronyms

Quick Links

Related Manuals for LG MULTI F

Summary of Contents for LG MULTI F

Table of Contents