LG LDN187HV4 User Manual

Page 1
MULTI
F
MAX
MULTI
F
Low Wall Console
INDOOR UNIT
ENGINEERING MANUAL
Vertical-Horizontal Air Handling Units
Art CoolTM Mirror Wall-Mounted
Four-Way Ceiling Cassette
Indoor Units for Multi-Zone Heat Pump Systems
7,000 to 36,000 Btu/h
Ceiling-Concealed Duct
Art CoolTM Gallery Wall-Mounted
Page 2
PROPRIETARY DATA NOTICE
DANGER
WARNING
CAUTION
This document, as well as all reports, illustrations, data, information, and
other materials are the property of LG Electronics U.S.A., Inc., and are
disclosed by LG Electronics U.S.A., Inc., only in confidence.
This document is for design purposes only.
For continual product development, LG reserves the right to change specifications without notice.
©LG Electronics Inc.
TABLE OF SYMBOLS
This document, as well as all reports, illustrations, data, information, and other materials are the property of LG Electronics U.S.A., Inc.
Note:
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.
This symbol indicates situations that may result in equipment or property damage accidents only.
This symbol indicates an action that should not be performed.
Page 3
MULTI
MAX
MULTI
F
TABLE OF CONTENTS
Convergence of Technology,
Innovation, Flexibility, & Style ....................................................4
Unit Nomenclature .......................................................................5
Functions, Controls and
Options Overview ........................................................................6
Art Cool Mirror Indoor Units .....................................................10
Art Cool Gallery Indoor Units ...................................................29
Standard Wall-Mounted Indoor Units ......................................49
Low Wall Console Indoor Units ................................................73
Duct (Low Static) Indoor Units .................................................94
Mechanical Specications and Features ........................................... 10
General Data / Specications .............................................................11
Dimensions ........................................................................................ 12
Cooling Capacity Table ...................................................................... 14
Heating Capacity Table ...................................................................... 16
Acoustic Data .................................................................................... 17
Air Velocity and Temperature Distribution .......................................... 18
Refrigerant Flow Diagram .................................................................. 19
Wiring Diagram .................................................................................. 20
Factory Supplied Parts and Materials ................................................ 21
Installation and Best Layout Practices ............................................... 22
Mechanical Specications and Features ........................................... 29
General Data / Specications ............................................................ 30
Dimensions ........................................................................................ 31
Cooling Capacity Table ...................................................................... 32
Heating Capacity Table ...................................................................... 33
Acoustic Data .................................................................................... 34
Air Velocity and Temperature Distribution .......................................... 35
Refrigerant Flow Diagram .................................................................. 36
Wiring Diagram .................................................................................. 37
Factory Supplied Parts and Materials ................................................ 38
Installation and Best Layout Practices ............................................... 39
Mechanical Specications and Features ........................................... 49
General Data / Specications ............................................................ 50
Dimensions ........................................................................................ 51
Cooling Capacity Table ...................................................................... 53
Heating Capacity Table ...................................................................... 56
Acoustic Data .................................................................................... 58
Air Velocity and Temperature Distribution .......................................... 60
Refrigerant Flow Diagram .................................................................. 62
Wiring Diagram .................................................................................. 63
Factory Supplied Parts and Materials ................................................ 65
Installation and Best Layout Practices ............................................... 66
Mechanical Specications and Features ........................................... 73
General Data / Specications ............................................................ 74
Dimensions ........................................................................................ 75
Cooling Capacity Table ...................................................................... 76
Heating Capacity Table ...................................................................... 78
Acoustic Data .................................................................................... 79
Air Velocity and Temperature Distribution .......................................... 81
Refrigerant Flow Diagram .................................................................. 82
Wiring Diagram .................................................................................. 83
Factory Supplied Parts and Materials ................................................ 84
Installation and Best Layout Practices ............................................... 85
Mechanical Specications and Features ........................................... 94
General Data / Specications ............................................................ 95
Dimensions ........................................................................................ 96
Cooling Capacity Table ...................................................................... 97
Heating Capacity Table ...................................................................... 99
External Static Pressure .................................................................. 100
Acoustic Data .................................................................................. 101
Refrigerant Flow Diagram ................................................................ 102
Wiring Diagram ................................................................................ 104
Factory Supplied Parts and Materials .............................................. 106
Installation and Best Layout Practices ............................................. 107
Duct (High Static) Indoor Units ..............................................117
Mechanical Specications and Features ..........................................117
General Data / Specications ...........................................................118
Dimensions .......................................................................................119
Cooling Capacity Table .................................................................... 121
Heating Capacity Table .................................................................... 122
External Static Pressure / Acoustic Data ......................................... 123
Refrigerant Flow Diagrams .............................................................. 124
Wiring Diagrams .............................................................................. 125
Factory Supplied Parts and Materials .............................................. 126
Installation and Best Layout Practices ............................................. 127
Four-Way Ceiling Cassette Indoor Units ...............................136
Mechanical Specications and Features ......................................... 136
General Data / Specications .......................................................... 137
Dimensions ...................................................................................... 138
Cooling Capacity Table .................................................................... 140
Heating Capacity Table .................................................................... 142
Acoustic Data .................................................................................. 144
Air Velocity and Temperature Distribution ........................................ 146
Refrigerant Flow Diagram ................................................................ 148
Wiring Diagram ................................................................................ 149
Factory Supplied Parts and Materials .............................................. 150
Installation and Best Layout Practices ............................................. 151
Two-Way VAHU Indoor Units .................................................. 160
Mechanical Specications and Features ......................................... 160
General Data / Specications .......................................................... 161
Dimensions ...................................................................................... 162
Cooling Capacity Table .................................................................... 163
Heating Capacity Table .................................................................... 164
External Static Pressure .................................................................. 165
Acoustic Data .................................................................................. 166
Refrigerant Flow Diagram ................................................................ 167
Wiring Diagram ................................................................................ 168
Factory Supplied Parts and Materials .............................................. 170
Installation and Best Layout Practices ............................................. 171
Four-Way VAHU Indoor Units ................................................. 180
Mechanical Specications and Features ......................................... 180
General Data / Specications .......................................................... 181
Dimensions ...................................................................................... 182
Cooling Capacity Table .................................................................... 183
Heating Capacity Table .................................................................... 185
External Static Pressure .................................................................. 187
Heater Capacities ............................................................................ 189
Acoustic Data .................................................................................. 190
Refrigerant Flow Diagram ................................................................ 192
Wiring Diagram ................................................................................ 193
Factory Supplied Parts and Materials .............................................. 195
Installation and Best Layout Practices ............................................. 196
Equipment Selection Procedure ............................................206
Placement Considerations ............................................................... 213
Refrigerant Piping Design ......................................................220
Design Guideline Summary ............................................................. 220
Creating a Balanced System / Manual Layout Procedure 224
Condensate Drain Piping ................................................................. 225
Electrical Connections ............................................................227
General Information ......................................................................... 227
Power Wiring (208-230V) and Comm Cable Details ....................... 230
Remote Controller Connections ...................................................... 240
Indoor Unit Group Control ............................................................... 241
Acronyms .................................................................................242
INTRODUCTION | 3
Introduction
Page 4
CONVERGENCE OF TECHNOLOGY,
MULTI
F
INNOVATION, FLEXIBILITY, & STYLE
About LG Electronics, Inc.
LG Electronics is a global leader and technology innovator in con­sumer electronics, mobile communications, and home appliances. LG Electronics comprises five business units—Home Entertainment, Mobile Communications, Air Conditioning, Business Solutions, and Home Appliance. LG is one of the world’s leading producers of flat panel televisions, audio and video products, mobile handsets, air conditioners, and washing machines. LG’s commercial air condition­ing business unit was established in 1968 and has built its lineup of residential and commercial products to include VRF, Multi F, duct­free split systems, packaged terminal air conditioners (PTACs), and room air conditioners. In 2011, the air conditioning and energy solu­tions business unit grew to include LED lighting and solar products. For more information, visit www.lg.com.
Multi-Zone Systems
LG HVAC systems offer a range of solutions that are cost efficient, quiet and attractive. Multi-zone systems are “split” into indoor and outdoor units, and provide a smart alternative to both central HVAC and window-mounted air conditioners. These inverter heat pump sys­tems are available in a variety of configurations to suit different cool­ing and heating situations. Installation by a trained HVAC contractor is safe and easy – little to no duct work or sheet metal is required.
be used with different controllers, allowing the customer to set the temperature individually. Indoor units are available in several different
congurations: Art Cool™ Mirror-mounted, Art Cool Gallery wall-
mounted, standard wall-mounted, low wall console, four-way ceiling cassettes, ceiling-concealed duct (high and low static), and vertical­horizontal air handling models. Multi F MAX systems can operate up to eight indoor units through two-, three-, or four-port branch distribu­tion units.
Adaptable and Flexible
Multi F outdoor units can be adapted to a wide range of building ap-
plications and sizes such as schools, hotels, hospitals, ofces, and
residences. The system components are lightweight and compact so they can be placed in buildings without expensive cranes, they easily fit into most service elevators, and they can be set in place with minimal structural reinforcements requirements.
Multi F technology allows you to pipe farther by reaching areas of the building that would require the installation of a second system when using traditional direct-expansion cooling and heating equipment. Multi F provides the designer with uncompromised pipe system engineering
exibility—long pipe runs and large elevation differences. Whether your building is a condominium, a hotel, a school, or an ofce complex, Multi
F is best suited to reach the farthest corners and elevations.
Multi F Systems
LG’s inverter heat pumps can support two, three, or four indoor units that are typically installed in separate rooms. Indoor units can
Benefits of Multi F Systems
• Individual zone control
• Long refrigerant piping lengths
• High refrigerant piping elevation differences
• Maximum flexibility
• Operating ranges of 14°F to 118°F (DB) in cooling and -4°F to 75°F (DB) in heating if connected to standard Multi F Outdoor Units or -13°F to 75°F (DB) in heating if connected to Multi F with LG REDº Outdoor Units.
• Quiet and comfortable environment
Multi F and Multi F MAX Indoor Unit Engineering Manual
• Reduced ductwork
Smaller Chases and Plenums
LG Multi F systems use refrigerant piping to move heat, resulting in smaller space requirements for piping as compared to chilled water or roof top systems. This helps reduce the overall construction and material cost of the building, and gives back leasable space. Flexible and logical placement of system components, reduced back-and­forth pipe lengths, and fewer joints lowers installation costs and minimizes potential leaking.
Quality Commitment
LG is committed to the success of duct-free projects. We provide
technical support during installation and commissioning. LG offers a variety of classes designed for installers and servicers on Multi F installation. Classes are con­ducted at LG’s training centers and in field locations at various times throughout the year and on special request.
4 | INTRODUCTION
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 5
MULTI
F
MAX
MULTI
F
UNIT NOMENCLATURE
Multi-Zone Systems Indoor Units and Outdoor Units
L
L = LG
Type: M = Multi-Zone
Component: AN: Art Cool™ Wall-Mounted Indoor Unit N: Standard Wall-Mounted Indoor Unit QN: Low Wall Console Indoor Unit CN: Four-Way Ceiling-Cassette Indoor Unit DN: Ceiling-Concealed Duct (Low Static) Indoor Unit HN: Ceiling-Concealed Duct (High Static) Indoor Unit VN: Vertical-Horizontal Air Handling Indoor Unit U: Outdoor Unit
Nominal Capacity
(Nominal cooling capacity in Btu/h):
07 = 7,000 09 = 9,000 12 = 12,000
Generation
Features:
H = Heat Pump V = Inverter
T = High Wall-Mounted Indoor Unit
P = Art Cool Gallery Indoor Unit
15 = 15,000 18 = 18,000 24 = 24,000
30 = 30,000 36 = 36,000 42 = 42,000
M
48 = 48,000 54 = 54,000 60 = 60,000
CN 07 8 HV
Introduction
Branch Distribution Units
P = Part (Accessory)
Type: M = Multi-Zone
BD: Branch Distribution Unit
Family
Number of Port Connections
(Maximum Number of Connectable Indoor Units): 2, 3, 4
Voltage for all equipment is 208-230V, 60 Hz, 1-phase.
• All indoor units are compatible with wired controllers.
All outdoor units are LGAP control network compatible with PI-485 V-net Control Integration Board (PMNFP14A1, sold separately).
Compatible single zone IDU nomenclature is listed in the Single Zone Wall-Mounted IDU Engineering Manual.
Generation: 0, 1
P
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
M
BD 36
02
INTRODUCTION | 5
Page 6
MULTI
F
MAX
MULTI
F
FUNCTIONS, CONTROLS AND OPTIONS OVERVIEW
Table 1: Indoor Units—Functions, Controls and Options.
Indoor Unit Type
Air supply outlets Airflow direction (left/right) Airflow direction (up/down) Auto swing (left/right) Auto swing (up/down)
Airow
Airflow steps (fan/cool/heat) Comfort Air (random fan speed) Jet-cool/Jet Heat (power wind)
ART COOL™
Mirror Wall
Mounted
1 3 1 2 1 1 4 1 Auto Auto Auto Manual Auto Auto Auto Auto Auto
6 / 6 / 6 5 / 5 / 4 6 / 6 / 6 5 / 5 / 5 3 / 3 / 3 3 / 3 / 3 4 / 5 / 4 3 / 3 / 3
ART COOL™
Gallery
Swirl wind
Washable anti-fungal
3M Micro Dust Filter
Filter
Ventilation
1
2
Drain pump E.S.P. control Electric heater High ceiling Hot Start Self diagnostics Soft Dry (dehumidification) Auto operation Auto clean (coil dry) Auto restart
Operation
Child lock Forced operation Group control Sleep mode Timer (on/off)
Weekly schedule
Two thermistor control 7-Day programmable controller Simple wired remote controller
Multi F and Multi F MAX Indoor Unit Engineering Manual
Wireless LCD remote control
Dry contact Dry contact (temperature setting)
Controllers
Central control (LGAP)
Connector for Water Sensor
Wi-Fi
Special
Function
5
o o o
o o o
o o o o
o o o o o o o
o o o o o o o o
o o o o o o o o
o
o o o o o o o
o o o o o o o o
8
o o o o o o
Standard
Wall
Mounted
Low Wall
Console
6
6
Ceiling
Concealed
(Low Static)
Ducted
Ceiling
Concealed
(High Static)
Ducted
Four-Way
Ceiling
Cassette
4
√ √ √ √
o o o o
o o o o
6
6
o
o
Vertical­Horizontal Air Handling Unit
o
5
6
7
1
2
3
Plasma kit.
4
limitations apply).
5
6 | INTRODUCTION
Primary washable filters. Secondary filter Branch location and static pressure requirements. Requires PTPKQ0
Requires ventilation kit PTVK430 (Temperature, humidity, and volume
Group control will affect available features
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
6
Requires wired zone controller
7
For use with 3rd party thermostat
8
Embedded. Optional for HSD, LVNxxxHV4 4-way VAHU; LDN 9/12 MBH LSD are compatible as of June 2018 production. Not available for 2-way LMVNxxxHV VAHU. LMANxxxHVP Art Cool Gallery compatible as of January 2019 production.
√ = Standard feature
o = Unit option
Page 7
MULTI
F
MAX
MULTI
F
Table 2: Indoor Unit Accessories Overview.
Model No. Description
For Four-Way Ceiling-Cassette Indoor Units
PT-QCHW0 Ceiling Grille
PTDCQ Decorative Cover
PRARH0 Aux Heat Relay Kit
PWFMDD200 Wi-Fi Module
For Wall-Mounted Indoor Units
PWFMDD200 Wi-Fi Module
AG-9300-LG Condensate Sensor
PRARS1 Aux Heat Relay Kit
For Low Wall Console Units
PWFMDD200 Wi-Fi Module
AG-9300-LG Condensate Sensor
PRARH0 Aux Heat Relay Kit
For Vertical-Horizontal Air Handing Units
PNDFJ0 Downflow Conversion Kit (18/24/36MBH)
ANEH033B1 3 kW Electric Heater (18-36MBH) ANEH053B1 5 kW Electric Heater (18-36MBH) ANEH083B2 8 kW Electric Heater (18-36MBH) ANEH103B2 10 kW Electric Heater (18-36MBH)
PRARH0 Aux Heat Relay Kit
PWFMDD200 Wi-Fi Module
For Ceiling-Concealed Duct (Low Static) Indoor Units
PWFMDD200 Wi-Fi Module
For Ceiling-Concealed Duct (High Static) Indoor Units
ZFBXM101A High Efficiency Filter Box for LHN248HV ZFBXM201A High Efficiency Filter Box for LHN368HV ZFBXD201A Dynamic V8 2VL Low Profile Air Cleaner ZPLMV201A Dynamic 2VL Air Cleaner Low Profile Return Air Plenum ZFBXD402A Dynamic V8 4VL Low Profile Air Cleaner ZPLMV402A Dynamic 4VL Air Cleaner Low Profile Return Air Plenum
ZFLT1301A 4-Pack Dynamic V8 VL Air Cleaner Replacement Filter Pads
ZFLT1302A 24-Pack Dynamic V8 VL Air Cleaner Replacement Filter Pads ZGRLRA01A Dynamic V8 Air Cleaner Louvered Return Air Grille (one per plenum ) ZGRLRA02A Dynamic V8 Air Cleaner Egg Crate Return Air Grille (one per plenum)
PRARH0 Aux Heat Relay Kit
PWFMDD200 Wi-Fi Module
Controls Accessories
PQWRHQ0FDB Wireless Handheld Remote (Duct/VAHU)
PREMTA000A Premium Controller
PREMTC00U Simple Controller PREMTBVC0 MultiSITE CRC1 Base Controller PREMTBVC1 MultiSITE CRC1 Plus Controller
ZVRCZ**** MultiSITE CRC1 Wireless Accessories
PDRYCB100 Dry Contact (Simple) PDRYCB300 Dry Contact (3rd party controller) PDRYCB400 Dry Contact (Setback)
ZRTBS01 Remote Temp Sensor (Cassette/Console/Duct/VAHU)
PZCWRCG3 Group Control Cable Kit
PZCWRC1 Controller Extension Cable
FUNCTIONS, CONTROLS AND
OPTIONS OVERVIEW
Introduction
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
INTRODUCTION | 7
Page 8
Multi F and Multi F MAX Indoor Unit Engineering Manual
MULTI
F
MAX
MULTI
F
8 | INTRODUCTION
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 9
ART COO
L
MIRROR
INDOOR UNIT DATA
“Mechanical Specifications” on page 10
“General Data / Specifications” on page 11
“Dimensions” on page 12
“Cooling Capacity Table” on page 14
“Heating Capacity Table” on page 16
“Acoustic Data” on page 17
“Air Velocity and Temperature Distribution” on page 18
“Refrigerant Flow Diagram” on page 19
“Wiring Diagram” on page 20
“Factory Supplied Parts and Materials” on page 21
“Installation and Best Layout Practices” on page 22
Page 10
ART COOL MIRROR INDOOR UNITS
MULTI
F
MAX
MULTI
F
Mechanical Specications and Features
ART COOL Mirror Wall-Mounted Indoor Units
General
All LG indoor units are factory assembled, wired, piped, and pro­vided with a control circuit board, fan, and motor. ART COOL Mirror
Wall-Mounted indoor units have a sound rating no higher than 44
dB(A) as tested per KSA0701 ISO Standard 3745.
Coil
Indoor unit coils are comprised of a minimum of two rows of aluminum fins mechanically bonded to copper tubing. The coils are pressure tested at the factory. Each unit is provided with a factory installed condensate drain pan below the coil.
Refrigerant System
System is designed for use with R410A refrigerant. The refrigeration circuit is pressure-tested at the factory and shipped with a holding charge of helium gas. Refrigerant pipe connections are 45° flare. All refrigerant lines from the outdoor unit to the indoor units must be field insulated.
Electrical
Each indoor unit is designed to operate using 208–230/60/1 power with voltage variances of ±10%.
Casing
Units are designed to mount on a vertical surface, and are shipped with a separate back plate that secures the unit to the wall, protrud­ing no more than nine (9) inches. Unit is designed so that refrigerant piping can be installed in one (1) of four (4) different directions.
Finish
The Art Cool Mirror unit has a flat, architectural panel with a smoked charcoal mirror finish. Unit casing has a dark grey finish and is manufactured of heavy-duty acrylonitrile butadiene styrene (ABS) and high impact polystyrene (HIPS) plastic.
Fan Assembly and Control
The unit has a single, direct-drive, crossow fan made of high strength
ABS plastic. The fan motor is brushless digitally controlled (BLDC) with permanently lubricated and sealed ball bearings. The fan and
Multi F and Multi F MAX Indoor Unit Engineering Manual
motor assembly is mounted on vibration attenuating rubber grommets. Fan speed is controlled using a microprocessor-based direct digitally
controlled algorithm that provides pre-programmed, eld-selectable xed or auto fan speeds in the Heating and Cooling modes. For Art Cool Mirror Wall-Mounted units, the indoor fan has Low, Med, High,
Jet Cool and Auto settings for Cooling mode; and has Low, Med, High, Jet Heat and Auto settings for Heating mode. The Auto setting adjusts the fan speed based on the difference between the controller setpoint and space temperature. Also, the separate Chaos setting provides a
simultaneous and random change in fan speed and ow direction at
the discharge, simulating a natural outdoor breeze.
Air Filter
Return air inlet has a factory-supplied primary removable, washable filter. The unit is also equipped with a secondary 3M Micro Dust filter. Filters are accessed from the front of the unit without the use of tools.
Airflow Guide Vanes
A motorized guide vane is factory installed, and allows the ability to control the direction of airflow from side to side. A motorized louver provides an automatic change in airflow by directing the air up and down to provide uniform air distribution.
Microprocessor Control
The indoor unit is provided with an integrated control panel to com­municate with the outdoor unit. All unit operation parameters are stored in non-volatile memory resident on the unit microprocessor. The microprocessor controls space temperature through using the value provided by the temperature sensor within the indoor unit. The microprocessor control will activate indoor unit operation when the indoor room temperature falls below or rises above a setpoint temperature, at which point, a signal is sent to the outdoor unit to begin the appropriate mode. The microprocessor will also provide self-diagnostics and auto restart functions. A field-supplied four-wire power/communications cable must be installed to connect the indoor unit(s) to the outdoor unit.
Controls
The indoor unit casing has a factory-standard, integral infrared sensor designed to communicate with the supplied LG wireless handheld remote controller. An optional LG supplied wired controller is available as an additional accessory. Communication between the
indoor units and the outdoor unit is accomplished through 14 AWG,
four-core, stranded and shielded power/communication cable. The indoor unit has built-in wi-fi and can be controlled with LG’s Smart­ThinQ app on a smart device. A field-supplied wi-fi network and smart device are required. The SmartThinQ app is free and is avail­able for Android and iOS smart devices.
Condensate
The unit is designed for gravity draining of condensate and includes a flexible drain hose capable of installation in one of two directions. Unit includes a connection that is compatible with the AquaGuard® AG-9300-LG condensate sensor.
Features
• Inverter (Variable speed fan)
• Comfort Air
• 3M filter
• Jet cool/Jet heat
10 | ART COOL MIR ROR
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
• Group Control
• Self-cleaning indoor coil
• Auto operation
• Auto restart operation
Due to our policy of continuous product innovation, some specications may change without notication.
Figure 1: Multi F Art Cool Mirror Wall-Mounted Indoor Unit.
• Built-in wi-fi
• Dehumidifying function
• Self diagnosis function
Wireless LCD remote control included
Page 11
ART COOL MIRROR INDOOR UNITS
MULTI
F
MAX
MULTI
F
Table 3: Multi F Art Cool Mirror Indoor Unit General Data.
Model Name LAN090HSV5 LAN120HSV5 LAN180HSV5
Nominal Cooling Capacity (Btu/h)
Nominal Heating Capacity (Btu/h)
Operating Range
Cooling (°F WB)
Heating (°F DB)
Fan
Type
Motor Output (W) x Qty.
1
1
General Data / Specications
9,000 12,000 18,000
10,900 13,600 21,600
57-77
59-81
Cross Flow
30 x 1 60.0 x 1
Motor/Drive
Airflow Rate CFM (H/M/L)
Unit Data
Refrigerant Type
2
Refrigerant Control
Power Supply V, Ø, Hz3
Rated Amps (A)
Sound Pressure Level dB(A) (H/M/L)4
Dimensions (W x H x D, in.) Net Unit Weight (lbs.) Shipping Weight (lbs.) Power Wiring / Communications Cable
(No. x AWG)5
Heat Exchanger (Row x Column x Fin / inch) x Number
Pipe Size
Liquid (in.)
Vapor (in.)
Connection Size
Liquid (in.)
Vapor (in.)
Drain O.D. / I.D. (in.)
Brushless Digitally Controlled / Direct
268 / 218 / 169 282 / 233 / 177 558 / 438 / 353
R410A
EEV
208-230, 1, 60
0.4
36 / 32 / 27 38 / 34 / 29 44 / 38 / 34
32-15/16 x 12-1/8 x 7-9/16 39-9/32 x 13-19/32 x 8-11/32
20.5 29.8
25.6 36.4
4 x 14
(2 x 23 x 22) x 1 (2 x 16 x 20) x 1
1/4
3/8 1/2
1/4 3/8
3/8 5/8
27/32, 5/8
Art Cool Mirror™
1
accordance with standard length of each outdoor unit and a 0 ft. level difference between outdoor and indoor units. All capacities are net with a combination ratio between 95 – 105%.
Nominal cooling 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). Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF
wet bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
2
Nominal capacity is rated 0 ft. above sea level with corresponding refrigerant piping length in
This unit comes with a dry helium charge.
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
3
Acceptable operating voltage: 187V-253V.
4
Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745 and are the same in both cooling and heating mode. These values can increase due to ambient conditions during operation.
5
All power wiring / communications cable to the IDUs be minimum 14 AWG, 4-conductor, stranded,
shielded or unshielded (if shielded, must be grounded to chassis at ODU only) and must comply with applicable local and national codes.
ART COOL M IRROR | 11
Page 12
ART COOL MIRROR INDOOR UNITS
MULTI
F
MAX
MULTI
F
Dimensions
Figure 2: LAN090HSV5 and LAN120HSV5 Dimensions.
Refrigerant, Drain
Pipe, and Cable
Knock Out Hole
1/8 (3) x 1/4 (6)
1/4 (6) x 1/8 (3)
1-1/4 (31)
2-7/16 (61.5)
5-31/32 (152)
1-3/32 (50.2)
1-1/16 (26.2)
2-7/32 (56)
2 (51)
Unit : inch (mm)
1-7/16 (33.5)
Terminal Block for
Power Supply and
Communication
Approx. 11-11/32 (288) to gas pipe
85°
45°
15°
15°
5/8 (15.3)
55°
55°
1-9/32 (32.7)
(61)
2-13/32
* If airflow direction control is available,
Cooling Heating
1-27/32(47)
1-1/2 (38)
Up & Down Left & Right
Connection
Decoration Cover
3-5/8 (92)
2-3/8 (60)
2-5/16
(59)
Refrigerant, Drain
Pipe and Cable
Knock Out Hole
Approx. 8-19/32 (218) to liquid pipe
Drain Hose
Multi F and Multi F MAX Indoor Unit Engineering Manual
Connecting Gas/Liquid Pipe
Unit Outline
32-15/16 (837)
Air Outlet Hole
Air Outlet Hole
[28-5/32 (715)]
Bottom
Air Outlet
2 (51)
5/16 (8)
11/32 (9)
2-7/32(56)
Left Rear piping
C Type
2-7/32 (56)
12-1/8 (308)
Installation Plate
Display & Remote
Controller Signal
Receiver Signal
Refrigerant,
Drain Pipe
and Cable
Knock
Out Hole
Ø2-9/16"
[5-29/32 (150)] Air Intake Hole
Left
Rear
32-15/16 (837)
Air Intake
7-9/16 (192)
Unit Outline
C Type : 16.5 C Type : 16.5
Attaching the Installation Plate, Drilling Hole
Place a Level on Raised Tab
Right
Air Intake Hole
[30-3/16 (767)]
Rear
12 | ART COO L MIRROR
C Type : 5.3C Type : 3.9
In Case of Left Side Piping
5-3/16 (132)
12-1/8 (308)
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
7.66
Right Rear piping
Ø2-9/16”
Ø2-9/16"
Page 13
Figure 3: LAN180HSV5 Dimensions.
MULTI
F
MAX
MULTI
F
1/8 (3) x 1/4 (6)
5/8 (15.3)
1-9/32 (32.7)
2-13/32
15°
45°
Cooling Heating
1/4 (6) x 1/8 (3)
(61)
If airflow direction control is available,*
1-1/4 (31)
2-7/16 (61.5)
ART COOL MIRROR INDOOR UNITS
Dimensions
Refrigerant, Drain
Pipe, and Cable
Knock Out Hole
5-31/32 (152)
1-3/32 (50.2)
1-1/16 (26.2)
1-7/16 (33.5)
2-3/8 (60)
2-3/8 (60)
A le
ir Outlet Ho
[2-29/32 (74)]
[6-11/16 (170)]
Air Intake Hole
Left
Rear
Unit : inch (mm)
85°
20°
50°
50°
2-15/32 (63)
1-15/32 (37)
Up & Down Left & Right
Decoration Cover
3-17/32 (90)
2-1/4 (57)
2-7/32 (56)
Refrigerant, Drain
Pipe and Cable
Knock Out Hole
Communication
Drain Hose Connection
Approx. 6-5/16 (160) to liquid pipe
Approx. 9-7/16 (240) to gas pipe
Terminal Block for
Power Supply and
C Type: 5.3
[34-11/32 (872)]
Air Outlet Hole
Bottom
Air
Outlet
2-3/8 (60)
7/16 (11)
7/16(11)
2-3/8 (60)
Left Rear piping
3.3
Controller Signal
Receiver Signal
13-19/32 (345)
Knock
Out Hole
Ø2-9/16
"
39-9/32 (998)
Display & Remote
Air Intake
Refrigerant,
Drain Pipe
and Cable
Unit Outline
C Type: 19.4 C Type: 19.8
Attaching the Installation Plate, Drilling Hole
8-11/32 (212)
Right
[36-5/32 (918)]
Air Intake Hole
Rear
Art Cool Mirror™
Connecting Gas/Liquid Pipe
Unit Outline
6-15/32 (164)
13-19/32 (345)
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Measuring Tape
Hanger
39-9/32 (998)
In case of Left Side Piping
C Type: 5.9
Due to our policy of continuous product innovation, some specications may change without notication.
Measuring Tape
3.3
Ø2-9/16"
Right Rear piping
Place a Level on Raised Tab
ART COOL M IRROR | 13
Page 14
ART COOL MIRROR INDOOR UNITS
MULTI
F
MAX
MULTI
F
Cooling Capacity Table
Table 4: Multi F Art Cool Mirror Indoor Units Cooling Capacity Table.
Model No. /
Nominal Capacity
of Indoor Unit
(Btu/h)
LAN090HSV5
9,000
LAN120HSV5
12,000
Multi F and Multi F MAX Indoor Unit Engineering Manual
TC = Total Capacity (kBtu/h).
SHC: Sensible Heat Capacity (kBtu/h).
Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal cooling 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). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently.
Outdoor Air
Temp.
(°F DB)
14 8.82 6.04 9.37 6.38 9.92 6.18 10.31 6.31 11.01 6.36 11.56 6.48 20 8.82 6.09 9.36 6.43 9.91 6.23 10.31 6.36 11.01 6.41 11.55 6.53 25 8.81 6.13 9.36 6.48 9.90 6.27 10.30 6.41 11.00 6.46 11.54 6.58 30 8.80 6.18 9.35 6.53 9.90 6.32 10.29 6.46 10.99 6.51 11.54 6.63 35 8.80 6.23 9.34 6.58 9.89 6.37 10.28 6.50 10.98 6.56 11.53 6.68 40 8.79 6.28 9.33 6.63 9.88 6.42 10.27 6.55 10.97 6.61 11.52 6.73 45 8.78 6.32 9.33 6.68 9.87 6.47 10.27 6.60 10.96 6.66 11.51 6.78 50 8.78 6.37 9.32 6.73 9.87 6.51 10.26 6.65 10.96 6.71 11.50 6.83 55 8.77 6.42 9.31 6.78 9.86 6.56 10.25 6.70 10.95 6.76 11.49 6.88 60 8.76 6.46 9.31 6.83 9.85 6.61 10.24 6.75 10.94 6.81 11.48 6.93 65 8.76 6.51 9.30 6.88 9.84 6.66 10.24 6.80 10.93 6.85 11.47 6.98 70 8.75 6.56 9.29 6.92 9.84 6.70 10.23 6.85 10.92 6.90 11.47 7.03 75 8.54 6.45 9.08 6.82 9.62 6.61 10.01 6.75 10.71 6.82 11.25 6.96 80 8.33 6.34 8.87 6.71 9.41 6.51 9.80 6.66 10.49 6.73 11.03 6.87 85 8.12 6.22 8.66 6.60 9.20 6.41 9.59 6.56 10.28 6.64 10.82 6.79 90 7.91 6.10 8.45 6.48 8.99 6.31 9.37 6.46 10.06 6.55 10.60 6.70
95 7.68 6.04 8.22 6.43 8.75 6.26 9.00 6.32 9.83 6.52 10.36 6.67 100 7.50 5.88 8.03 6.26 8.57 6.11 8.88 6.22 9.64 6.37 10.17 6.53 105 7.31 5.72 7.84 6.10 8.38 5.96 8.77 6.12 9.45 6.23 9.99 6.39 110 7.12 5.52 7.66 5.90 8.19 5.78 8.58 5.94 9.26 6.06 9.80 6.22 115 6.94 5.36 7.47 5.74 8.01 5.63 8.39 5.79 9.08 5.91 9.61 6.08 118 6.82 5.32 7.36 5.70 7.89 5.60 8.28 5.76 8.96 5.89 9.50 6.06 122 6.79 5.30 7.32 5.69 7.86 5.59 8.24 5.76 8.93 5.89 9.46 6.06
14 11.76 8.51 12.49 8.99 13.22 8.70 13.75 8.88 14.69 8.96 15.42 9.13
20 11.75 8.57 12.48 9.06 13.21 8.77 13.74 8.95 14.67 9.03 15.40 9.20
25 11.75 8.64 12.48 9.13 13.20 8.84 13.73 9.02 14.66 9.10 15.39 9.27
30 11.74 8.71 12.47 9.20 13.19 8.90 13.72 9.09 14.65 9.17 15.38 9.34
35 11.73 8.77 12.46 9.27 13.18 8.97 13.71 9.16 14.64 9.24 15.37 9.41
40 11.72 8.84 12.45 9.34 13.17 9.04 13.70 9.23 14.63 9.31 15.36 9.48
45 11.71 8.90 12.44 9.41 13.16 9.11 13.69 9.30 14.62 9.38 15.35 9.55
50 11.70 8.97 12.43 9.47 13.15 9.17 13.68 9.37 14.61 9.45 15.33 9.62
55 11.69 9.03 12.42 9.54 13.14 9.24 13.67 9.44 14.60 9.52 15.32 9.70
60 11.68 9.10 12.41 9.61 13.13 9.31 13.66 9.50 14.59 9.58 15.31 9.77
65 11.67 9.17 12.40 9.68 13.12 9.38 13.65 9.57 14.57 9.65 15.30 9.84
70 11.66 9.23 12.39 9.75 13.11 9.44 13.64 9.64 14.56 9.72 15.29 9.91
75 11.38 9.08 12.11 9.60 12.83 9.31 13.35 9.51 14.27 9.60 15.00 9.79
80 11.10 8.92 11.82 9.45 12.55 9.17 13.07 9.38 13.99 9.48 14.71 9.68
85 10.83 8.76 11.54 9.29 12.26 9.03 12.78 9.24 13.70 9.36 14.42 9.56
90 10.55 8.60 11.26 9.13 11.98 8.88 12.50 9.10 13.42 9.22 14.13 9.43
95 10.25 8.51 10.96 9.05 11.67 8.82 12.00 8.90 13.10 9.18 13.81 9.39 100 10.00 8.28 10.71 8.82 11.42 8.61 11.84 8.76 12.85 8.98 13.56 9.20 105 9.75 8.05 10.46 8.59 11.17 8.40 11.69 8.62 12.60 8.78 13.31 9.01 110 9.50 7.77 10.21 8.31 10.92 8.14 11.44 8.37 12.35 8.53 13.07 8.76 115 9.25 7.54 9.96 8.08 10.67 7.92 11.19 8.15 12.10 8.33 12.82 8.56 118 9.10 7.49 9.81 8.03 10.52 7.88 11.04 8.12 11.95 8.30 12.67 8.54 122 9.05 7.47 9.76 8.01 10.48 7.87 10.99 8.11 11.90 8.29 12.62 8.53
68 / 57 73 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC
Indoor Air Temp. °F DB / °F WB
14 | ART COO L MIRROR
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 15
ART COOL MIRROR INDOOR UNITS
MULTI
F
MAX
MULTI
F
Cooling Capacity Table
Table 5: Multi F Art Cool Mirror Indoor Units Cooling Capacity Table (continued).
Model No. /
Nominal Capacity
of Indoor Unit
(Btu/h)
LAN180HSV5
18,000
TC = Total Capacity (kBtu/h).
SHC: Sensible Heat Capacity (kBtu/h).
Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal cooling 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). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently.
Outdoor Air
Temp.
(°F DB)
14 17.65 12.33 18.74 13.02 19.84 12.61 20.63 12.88 22.03 12.98 23.12 13.23
20 17.63 12.43 18.73 13.13 19.82 12.71 20.61 12.98 22.01 13.09 23.11 13.33
25 17.62 12.52 18.71 13.23 19.81 12.81 20.60 13.08 22.00 13.19 23.09 13.44
30 17.60 12.62 18.70 13.33 19.79 12.91 20.58 13.18 21.98 13.29 23.07 13.54
35 17.59 12.71 18.68 13.43 19.78 13.00 20.57 13.28 21.96 13.39 23.05 13.64
40 17.58 12.81 18.67 13.53 19.76 13.10 20.55 13.38 21.94 13.49 23.04 13.75
45 17.56 12.90 18.66 13.63 19.75 13.20 20.53 13.48 21.93 13.59 23.02 13.85
50 17.55 13.00 18.64 13.73 19.73 13.30 20.52 13.58 21.91 13.69 23.00 13.95
55 17.54 13.10 18.63 13.83 19.72 13.39 20.50 13.68 21.89 13.79 22.98 14.05
60 17.52 13.19 18.61 13.93 19.70 13.49 20.49 13.78 21.88 13.89 22.97 14.16
65 17.51 13.29 18.60 14.03 19.69 13.59 20.47 13.87 21.86 13.99 22.95 14.26
70 17.50 13.38 18.58 14.13 19.67 13.69 20.46 13.97 21.84 14.09 22.93 14.36
75 17.08 13.16 18.16 13.92 19.24 13.49 20.03 13.79 21.41 13.92 22.50 14.20
80 16.66 12.93 17.74 13.70 18.82 13.30 19.60 13.60 20.98 13.75 22.06 14.03
85 16.24 12.70 17.32 13.47 18.40 13.09 19.17 13.40 20.55 13.56 21.63 13.85
90 15.82 12.46 16.90 13.23 17.97 12.88 18.75 13.19 20.12 13.37 21.20 13.67
95 15.37 12.33 16.44 13.12 17.51 12.78 18.00 12.90 19.65 13.30 20.72 13.61 100 14.99 12.00 16.06 12.78 17.13 12.47 17.77 12.70 19.28 13.01 20.35 13.33 105 14.62 11.67 15.69 12.45 16.76 12.17 17.53 12.50 18.90 12.73 19.97 13.05 110 14.24 11.27 15.32 12.05 16.39 11.79 17.16 12.13 18.53 12.36 19.60 12.70 115 13.87 10.93 14.94 11.71 16.01 11.48 16.79 11.82 18.15 12.07 19.22 12.41 118 13.65 10.85 14.72 11.64 15.79 11.42 16.56 11.77 17.93 12.03 19.00 12.37 122 13.57 10.83 14.64 11.62 15.71 11.40 16.49 11.75 17.85 12.01 18.92 12.36
68 / 57 73 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC
Indoor Air Temp. °F DB / °F WB
Art Cool Mirror™
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ART COOL M IRROR | 15
Page 16
ART COOL MIRROR INDOOR UNITS
MULTI
F
MAX
MULTI
F
Heating Capacity Table
Table 6: Multi F Art Cool Mirror Indoor Units Heating Capacity Table.
Model No. /
Nominal Capacity of
Indoor Unit
(Btu/h)
LAN090HSV5
10,900
LAN120HSV5
13,600
LAN180HSV5
21,600
Multi F and Multi F MAX Indoor Unit Engineering Manual
TC = Total Capacity (kBtu/h). Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
Outdoor Air Temp. Indoor Air Temp. °F DB
61 64 68 70 72 75
°F DB °F WB
0 -0.4 5.61 5.53 5.48 5.45 5.37 5.14
5 4.5 6.32 6.24 6.18 6.16 6.08 5.85 10 9 7.03 6.95 6.90 6.88 6.79 6.56 17 15 7.98 7.90 7.85 7.82 7.75 7.48 20 19 8.33 8.26 8.21 8.18 8.09 7.82 25 23 8.93 8.85 8.79 8.77 8.69 8.37 30 28 9.44 9.36 9.31 9.29 9.20 8.93 35 32 9.96 9.87 9.82 9.79 9.72 9.47 40 36 10.42 10.33 10.28 10.25 10.18 9.94 45 41 10.87 10.80 10.74 10.71 10.64 10.40 47 43 11.06 10.98 10.93 10.90 10.82 10.59 50 46 11.24 11.15 11.10 11.08 10.99 10.73 55 51 11.53 11.46 11.40 11.37 11.30 10.98 60 56 11.53 11.46 11.40 11.37 11.30 11.03 63 59 11.53 11.46 11.40 11.37 11.30 11.06 68 64 11.53 11.46 11.40 11.37 11.30 11.11
0 -0.4 7.00 6.90 6.83 6.80 6.70 6.50
5 4.5 7.89 7.78 7.71 7.69 7.59 7.40 10 9 8.78 8.67 8.60 8.58 8.48 8.31 17 15 9.95 9.86 9.79 9.76 9.67 9.47 20 19 10.40 10.30 10.23 10.20 10.10 9.90 25 23 11.14 11.03 10.96 10.95 10.85 10.60 30 28 11.78 11.67 11.60 11.59 11.49 11.30 35 32 12.42 12.31 12.24 12.21 12.13 11.99 40 36 13.00 12.89 12.82 12.79 12.70 12.58 45 41 13.56 13.46 13.39 13.36 13.28 13.16 47 43 13.80 13.70 13.63 13.60 13.50 13.40 50 46 14.02 13.91 13.84 13.82 13.72 13.59 55 51 14.39 14.29 14.22 14.19 14.10 13.90 60 56 14.39 14.29 14.22 14.19 14.10 13.96 63 59 14.39 14.29 14.22 14.19 14.10 14.00 68 64 14.39 14.29 14.22 14.19 14.10 14.06
0 -0.4 11.11 10.96 10.85 10.80 10.64 10.18
5 4.5 12.52 12.37 12.26 12.21 12.06 11.58 10 9 13.93 13.77 13.67 13.61 13.46 12.99 17 15 15.81 15.65 15.55 15.49 15.34 14.84 20 19 16.51 16.36 16.25 16.20 16.04 15.49 25 23 17.69 17.53 17.43 17.37 17.22 16.59 30 28 18.70 18.55 18.44 18.39 18.24 17.69 35 32 19.72 19.56 19.46 19.41 19.25 18.79 40 36 20.63 20.48 20.37 20.32 20.17 19.70 45 41 21.55 21.39 21.29 21.24 21.08 20.61 47 43 21.91 21.76 21.65 21.60 21.44 20.98 50 46 22.26 22.11 22.01 21.95 21.80 21.27 55 51 22.86 22.70 22.59 22.53 22.38 21.76 60 56 22.86 22.70 22.59 22.53 22.38 21.85 63 59 22.86 22.70 22.59 22.53 22.38 21.91 68 64 22.86 22.70 22.59 22.53 22.38 22.02
TC TC TC TC TC TC
16 | ART C OOL MIR ROR
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 17
ART COOL MIRROR INDOOR UNITS
MULTI
F
MAX
MULTI
F
Acoustic Data
Figure 4: Sound Pressure Level Measurement Location.
3.3 ft.
2.6 ft.
Microphone
Measurement taken 2.6′ below the bottom of the unit and at a distance of 3.3′ from face of unit.
• Measurements taken with no attenuation and units operating at full load normal operating condition.
• Sound level will vary depending on a range of factors such as construction (acoustic absorption coefficient) of particular area in which the equipment is installed.
• Sound power levels are measured in dB(A).
• Tested in anechoic chamber per ISO Standard 3745.
Table 7:Sound Pressure Levels (dB[A]).
Sound Pressure Levels (dB[A]) (Cooling and Heating)
Model No.
LAN090HSV5 36 32 27
LAN120HSV5 38 34 29
LAN180HSV5 44 38 34
High Fan Speed
Medium Fan
Speed
Low Fan Speed
Art Cool Mirror™
Figure 5: Sound Pressure Level Diagrams.
LAN090HSV5 LAN120HSV5
LAN180HSV5
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ART COOL M IRROR | 17
Page 18
ART COOL MIRROR INDOOR UNITS
MULTI
F
MAX
MULTI
F
Air Velocity and Temperature Distribution
Figure 6: LAN090HSV5 and LAN120HSV5 Air Velocity and Temperature Distribution Charts.
Cooling
Heating
Figure 7: LAN180HSV5 Air Velocity and Temperature Distribution Charts.
Cooling
Multi F and Multi F MAX Indoor Unit Engineering Manual
Heating
18 | ART COOL MIR ROR
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 19
ART COOL MIRROR INDOOR UNITS
Vapor pipe connection port
Liquid pipe connection port
MULTI
F
MAX
MULTI
F
Figure 8: Art Cool Mirror Indoor Unit Refrigerant Flow Diagram.
Refrigerant Flow Diagram
M
Th2
Th1
Heat
Exchanger
Th3
Cross Flow Fan
Th4
Th5
Heating
(flare connection)
Cooling
Indoor Air Temperature
Thermistor for
Art Cool Mirror™
(flare connection)
Table 8: Art Cool Mirror Indoor Unit Refrigerant Pipe Sizes.
Table 10: Art Cool Mirror Indoor Unit Thermistor Details.
Table 9: Art Cool Mirror Indoor Unit Refrigerant Pipe Connections
Indoor Unit Capacity
9,000 Btu/h
18,000 Btu/h Ø1/2
Location Description (Based on Cooling Mode) IDU PCB Connector
Th1 Indoor Air Temperature Thermistor
Th2 Evaporator Inlet Temperature Thermistor
Th3 Evaporator Middle Temperature Thermistor
Th4 Evaporator Outlet Temperature Thermistor Th5 Water Level Sensor (Optional) CN-TH3
Vapor Line Size
(in., OD)
Ø3/8
Liquid Line Size
(in., OD)
Ø1/412,000 Btu/h
Indoor Unit Capacity
9,000 Btu/h
12,000 Btu/h
18,000 Btu/h Ø5/8 Ø3/8
Connection (in., OD)
CN-TH1
CN-TH2
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Vapor Line
Ø3/8 Ø1/4
Liquid Line
Connection (in., OD)
ART COOL M IRROR | 19
Page 20
ART COOL MIRROR INDOOR UNITS
MULTI
F
MAX
MULTI
F
Wiring Diagram
Figure 9: Multi F Art Cool Mirror LAN090HSV5, LAN120HSV5, and LAN180HSV5 Indoor Units Wiring Diagram.
Multi F and Multi F MAX Indoor Unit Engineering Manual
20 | ART COOL M IRR OR
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 21
Factory Supplied Parts
WARNING
MULTI
F
MAX
MULTI
F
Table 11: Parts Table.
Part Quantity Image
Installation Plate One (1)
Type “A” Screws Five (5)
ART COOL MIRROR INDOOR UNITS
Factory Supplied Parts and Materials
LAN090HSV5 and LAN120HSV5 LAN180HSV5
Type “B” Screws
(M4 x 12L)
Wireless Handheld
Controller with Holder
AKB74955602
Factory Supplied Materials
• Owner’s Manual
• Installation Manual
Installation work must be performed by trained personnel and in accordance with national wiring standards and all local or other applicable codes. Improper installation can result in re, electric shock, physical injury, or death.
Note:
Read all instructions before installing this product. Become familiar with the unit’s components and connections, and the order of installation. Incorrect installation can degrade or prevent proper operation.
Two (2)
One (1)
Required Tools
• Level
• Screwdriver
• Electric drill
• Hole core drill
• Flaring tool set
• Spanner (Half union)
• Thermometer
Art Cool Mirror™
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ART COOL M IRROR | 21
Page 22
ART COOL MIRROR INDOOR UNITS
DANGER
>4 inches
>4 inches
MULTI
F
MAX
MULTI
F
Installation and Best Layout Practices
To avoid the possibility of re, do not install the unit in an area where combustible gas will generate, ow, stagnate, or leak. Failure to do so will
cause serious bodily injury or death. Before beginning installation, read the safety summary at the beginning of this manual.
Select a location for installing the wall-mounted indoor unit (IDU) that meets the following conditions:
Where there is enough structural strength to bear the weight of the unit
Where air circulation will not be blocked
Where noise prevention is taken into consideration
• Ensure there is sufficient space from the ceiling and floor
• Locate the indoor unit in a location where it can be easily connected to the outdoor unit/branch distribution unit
• Include space for drainage to ensure condensate flows properly out of the unit when it is in cooling mode
• Use a level indicator to ensure the unit is installed on a level plane
Note:
The unit will be damaged, will malfunction, and/or will not operate as designed if installed in any of the following conditions:
Do not install the unit where it will be subjected to direct thermal radiation from other heat sources. Do not install the unit in an area where combustible gas will generate, flow, stagnate, or leak. Do not install the unit in a location where acidic solution and spray (sulfur) are often used. Do not use the unit in environments where oil, steam, or sulfuric gas are present. Do not install additional ventilation products on the chassis of the unit. Do not install the unit near high-frequency generator sources. Do not install the unit near a doorway.
Indoor units (IDUs) must not be placed in an environment where the IDUs will be exposed to harmful volatile organic compounds (VOCs) or in environments where there is improper air make up or supply or inadequate ventilation. If there are concerns about VOCs in the envi­ronment where the IDUs are installed, proper air make up or supply and/or adequate ventilation must be provided. Additionally, in buildings where IDUs will be exposed to VOCs, consider a third party factory-applied epoxy coating to the fan coils for each IDU where the entire coil
is dipped, not sprayed.
If the unit is installed near a body of water, the installation parts are at risk of corroding. Appropriate anti-corrosion methods must be taken for the unit and all installation parts.
Installing in an Area Exposed to Unconditioned Air
In some installation applications, areas (floors, walls) in some rooms will be exposed to unconditioned air (room will be above or next to
an unheated garage or storeroom). To countermeasure:
Multi F and Multi F MAX Indoor Unit Engineering Manual
• Verify that carpet is or will be installed (carpet will increase the temperature by three degrees).
• Add insulation between the floor joists.
• Install radiant heat or another type of heating system to the floor.
Required Clearances
Figure 10 shows required clearance distances around a typical installed wall-mounted unit.
Mounting the Installation Plate
The mounting wall must be strong and solid enough to protect the unit from vibration.
• Mount the installation plate on the wall using the Type “A” screws. If mounting the unit on concrete, consider using anchor bolts.
• Always mount the installation plate horizontally. Measure the wall and mark the centerline using thread and a level.
22 | ART CO OL MIRROR
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Figure 10:Minimum Clearance Requirements.
≥5 inches
Recommended height >6-1/2 feet from floor
Page 23
Unit Outline
Ø2-3/4 inches
Place a level on raised tab
ART COOL MIRROR INDOOR UNITS
Installation plate
Right
Tubing Clamp
Down
Left
Back
Frame Cover
(3/16"~5/16")
Indoor
WALL
Outdoor
Bushing
Core Drill
Sleeve
MULTI
F
MAX
MULTI
F
Installation and Best Layout Practices
Figure 11:Installation Plate for LAN090HSV5 and LAN120HSV5 Units. Figure 12:Installation Plate for LAN180HSV5 Units.
Place a level on raised tab
Unit Outline
18-1/8 inches 22-7/16 inches
Ø2-3/4 inches
Left rear piping
5-1/4 inches
6-7/8 inches
Installation Plate
3-3/4 inches
Ø2-3/4 inches
8-17/32 inches
Right rear piping
Left rear piping
2-23/32 inches
4-1/8 inches
Drilling Piping Hole in the Wall
Use caution when drilling holes through walls. Drilling into power wiring in the wall can cause serious bodily injury or death.
Follow the left or right piping clearance recommendations.
1. Using a 2-5/8 (ø 65mm) inch hole core drill bit, drill a hole at either the right or left side of the wall mounting. The hole must slant 3/16” to 5/16” from level (upward on the indoor unit side and downward on the outdoor unit side).
2. Finish off the newly drilled hole as shown with bushing and sleeve covering. Sleeve and bush­ing prevents damage to the tubing/bundling of the piping.
Hanging the Indoor Unit Chassis
1. Attach the three (3) hooks on the top of the indoor unit to the top edge of the installation plate. Verify the hooks are properly attached to the instal­lation plate by gently shaking the indoor unit from side to side.
2. Unlock the tubing clamp from the indoor unit frame. For easier access be­tween the bottom of the indoor unit and the wall, prop the clamp between the indoor unit frame and installation plate.
3. Remove the screw covers at the bottom of the indoor unit, unscrew the two (2) screws, remove the frame cover, remove the piping connection cover, and position the piping for installation (down, back, left, or right).
Figure 14:Accessing the Back of the Indoor Unit.
Figure 15:Removing the Frame Cover.
Figure 13:Locking the Indoor Unit onto the Installation Plate.
Installation Plate
Measuring Tape
Measuring Tape Hanger
Figure 19:Drilling Piping Hole
Ø2-3/4 inches
Right rear piping
2-7/32 inches
8-5/32 inches
Art Cool Mirror™
Tubing Clamp
Figure 16:Exterior Back View of Indoor Unit. Figure 17:Piping Installed to the Left.
Tape
Connecting pipe
Drain hose
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Figure 18:Piping Installed to the Right.
Tape
Connecting pipe
Drain hose
ART COOL M IRROR | 23
Page 24
ART COOL MIRROR INDOOR UNITS
Terminal block
Power wiring / communications cable
Wired Remote Controlle
r
Terminal (Optional)
Cable restraint
MULTI
F
MAX
MULTI
F
Installation and Best Layout Practices
Power Wiring / Communications Cable Guidelines
• Follow manufacturer’s circuit diagrams in the technical manuals.
• Confirm power source specifications.
• Confirm that the electrical capacity is sufficient.
• Starting current must be maintained ±10 percent of the rated current marked on the outdoor unit name plate.
• Confirm cable thickness specifications.
• It is required that a circuit breaker is installed, especially if conditions could become wet or moist.
• Include a disconnect in the power wiring system, add an air gap contact separation of at least 1/8 inch in each active (phase) conductor.
• Loose wiring will cause unit to malfunction, overheat, and catch fire, resulting in severe injury or death.
Note:
Terminal screws will become loose during transport. Properly tighten the terminal connections during installation.
A voltage drop will cause the following problems:
Magnetic switch vibration, fuse breaks, or disturbance to the normal function of an overload protection device.
• Compressor will not receive the proper starting current.
Connecting the Power Wiring and Communications Cable
1. Insert the power wiring/communications cable from the outdoor unit or branch distribution unit (Multi F MAX systems only) through the bottom of the indoor unit.
2. Connect each wire to its appropriate terminal on the indoor unit control board. Verify that the color and terminal numbers from the outdoor unit or branch distribution unit (Multi F MAX systems only) wiring match the color and terminal numbers on the indoor unit.
3. Secure the power wiring/communications cable with the cable restraint.
Figure 21:Simplied View of Indoor Unit to Outdoor Unit / Branch Distribution Unit Terminal Connections—LAN090HSV5 and LAN120HSV5 models.
GND
Indoor Unit Terminal Block
Multi F and Multi F MAX Indoor Unit Engineering Manual
BR
GRN / YLW
32(L2)1(L1)
BL
RD
Outdoor Unit Terminal Block or
Branch Distribution Unit Terminal Block
(Multi F MAX Systems Only)
3 or S
GND
Figure 20:Connecting the Power Wiring / Communications Cable.
Figure 22:Simplied View of Indoor Unit to Outdoor Unit / Branch
Distribution Unit Terminal Connections—LAN180HSV5 models.
24 | ART COOL MIRROR
GND
GRN / YLW
Indoor Unit Terminal Block
1(L1 )2(L2)
BR
BL
Outdoor Unit Terminal Block or
Branch Distribution Unit Terminal Block
(Multi F MAX Systems Only)
3
RD
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
3 or S
GND
Page 25
Wireless Handheld Controller
MULTI
F
MAX
MULTI
F
Screen Display
ART COOL MIRROR INDOOR UNITS
Installation and Best Layout Practices
Table 12: AKB74955602 Wireless Controller Functions.Figure 23:AKB74955602 Wireless Controller.
*
*
RESET
Buttons
*
Art Cool Mirror™
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ART COOL M IRROR | 25
Page 26
ART COOL MIRROR INDOOR UNITS
Indoor Unit Terminal Block
1(L1 )2(L2)
GND
GRN / YLW
BR
BL
RD
CN-REMO
To Outdoor Unit or Branch Distribution Unit
(Multi F MAX Systems Only)
To Wired Controller
3
Indoor Unit Terminal Block
1(L1 )2(L2)
GND
GRN / YLW
BR
BL
RD
CN-REMO
To Outdoor Unit or Branch Distribution Unit
(Multi F MAX Systems Only)
To Wired Controller
3
4 to 5 feet
above the floor
NO
NO
NO
YES
Remote Controller
TEMP
Remote Controller
TEMP
Re
m
ot
e
C
o
n
t
r
ol
l
er
TEMP
MULTI
F
MAX
MULTI
F
Installation and Best Layout Practices
Wired Controller Connections
Figure 24:Wired Controller Connection on the Indoor Unit Terminal
Block—LAN090HSV5 and LAN120HSV5 models.
Figure 25:Wired Controller Connection on the Indoor Unit Terminal
Block—LAN180HSV5 models.
Wired Controller Placement
Wired controllers include a sensor to detect room temperature. To maintain comfort
levels in the conditioned space, the wired controller must be installed in a location away from direct sunlight, high humidity, and where it could be directly exposed to cold air. Controller must be installed four (4) to five (5) feet above the floor where its LED display can be read easily, in an area with good air circulation, and where it can detect an average room temperature.
Do not install the wired controller near or in:
• Drafts or dead spots behind doors and in corners
• Hot or cold air from ducts
• Radiant heat from the sun or appliances
• Concealed pipes and chimneys
• An area where temperatures are uncontrolled, such as an outside wall
Figure 26:Proper Location for the Wired Controller.
Multi F and Multi F MAX Indoor Unit Engineering Manual
Operation Mode Sequence
Cooling Mode
Auto Operation
Dehumidification Mode
26 | ART COOL MIRR OR
Heating Mode
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 27
ART COOL MIRROR INDOOR UNITS
Top
Wall Wall
Wall Wall
Installing the Controller
Removing the Controller
MULTI
F
MAX
MULTI
F
Installation and Best Layout Practices
Hanging the Wired Controller
1. The controller wiring/cable can be installed in one of three direc-
tions: top, back, or on the right side. If top or right side installation
is desired, remove cable guide grooves on the controller, and then position wiring/cable on applicable side.
2. Choose and mark the area of installation, and then screw the wall plate into place (using the provided parts). Install the controller wall plate to fit the electrical box if one is present. Ensure that no gaps exist between the wall plate and the wall itself.
3. Arrange wiring/cables so as not to interfere with the controller circuitry. Position the wired controller on the wall plate. Snap into place by pressing the bottom part of the wired controller onto the wall plate. Make sure that no gaps exist between the wired controller and the wall plate on all sides.
4. To remove wired controller from the wall plate, insert a screw­driver into the two holes at the bottom. Twist screwdriver to release controller. Do not damage the controller components when removing.
Figure 27:Removing the Cable Guide Grooves.
Top
Back
Figure 28:Attaching the Wall Plate. Figure 29:Installing/Removing the
Right Side
Controller.
Right Side
Art Cool Mirror™
Assigning the Thermistor for Temperature Detection
Each indoor unit includes a return air thermistor assigned to sense the temperature. If a wired controller is installed, there is a choice of sensing temperature with either the indoor unit return air thermistor or the thermistor in the wired controller. It is also an option to set both thermistors to sense temperature so that indoor unit bases its operation on the first thermistor to reach the designated temperature differen­tial. For applicable indoor units, an optional Remote Temperature Sensor can be used in lieu of the return air thermistor—either alone or in conjunction with a wired controller thermistor as previously described.
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ART COOL M IRROR | 27
Page 28
ART COO
L
GALLERY
INDOOR UNIT DATA
“Mechanical Specifications” on page 29
“General Data / Specifications” on page 30
“Dimensions” on page 31
“Cooling Capacity Table” on page 32
“Heating Capacity Table” on page 33
“Acoustic Data” on page 34
“Air Velocity and Temperature Distribution” on page 35
“Refrigerant Flow Diagram” on page 36
“Wiring Diagram” on page 37
“Factory Supplied Parts and Materials” on page 38
“Installation and Best Layout Practices” on page 39
Page 29
ART COOL GALLERY INDOOR UNITS
MULTI
F
MAX
MULTI
F
Mechanical Specications and Features
ART COOL Gallery Indoor Units
General
All LG indoor units are factory assembled, wired, piped, and pro­vided with a control circuit board, fan, and motor. Art Cool Gallery indoor units have a sound rating no higher than 42 dB(A) as tested per KSA0701 ISO Standard 3745.
Coil
Indoor unit coils are comprised of a minimum of two rows of aluminum fins mechanically bonded to copper tubing. The coils are pressure tested at the factory. Each unit is provided with a factory installed condensate drain pan below the coil.
Refrigerant System
System is designed for use with R410A refrigerant. The refrigeration circuit is pressure-tested at the factory and shipped with a holding charge of helium gas. Refrigerant pipe connections are 45° flare. All refrigerant lines from the outdoor unit to the indoor units must be field insulated.
Electrical
Each indoor unit is designed to operate using 208–230/60/1 power with voltage variances of ±10%.
Casing
Units are designed to mount on a vertical surface, and are shipped with a separate back plate that secures the unit to the wall, protrud­ing no more than six (6) inches. Unit is designed so that refrigerant piping can be installed in one of four different directions.
Cases / Finishes
The Art Cool Gallery unit has a frame that can accommodate a 20" x 20" photograph, picture or artwork. Unit casing has a gray finish and is manufactured of heavy-duty acrylonitrile butadiene styrene (ABS) and high impact polystyrene (HIPS) plastic.
Fan Assembly and Control
The unit has a single, direct-drive, crossflow fan made of high strength ABS plastic. The fan motor is brushless digitally controlled (BLDC) with permanently lubricated and sealed ball bearings. The fan/motor assembly is mounted on vibration attenuating rubber grommets. Fan speed is controlled using a microprocessor-based direct digitally controlled algorithm that provides pre-programmed, field-selectable fixed or auto fan speeds in the Heating and Cooling modes. For Art Cool Gallery units, the indoor fan has Low, Med, High, Power Cool and Auto settings for Cooling mode; and has Low, Med, High, and Auto settings for Heating mode. The Auto setting adjusts the fan speed based on the difference between the controller setpoint and space temperature. Also, the separate Chaos setting provides a simultaneous and random change in fan speed and flow
direction at the discharge, simulating a natural outdoor breeze.
Figure 30: Multi F Art Cool Gallery Indoor Unit.
Air Filter
Return air is filtered with a factory-supplied, removable, washable pre-filter. Filter access is from the front of the unit without the use of tools.
Airflow Guide Vanes
Motorized oscillating guide vanes are factory installed, and allows the ability to control the direction of airflow from side to side. A motorized air sweep louver provides an automatic change in airflow by directing the air up and down to provide uniform air distribution.
Microprocessor Control
The indoor unit is provided with an integrated control panel to communicate with the outdoor unit. All unit operation parameters are stored in non-volatile memory resident on the unit microprocessor. The microprocessor controls space temperature through using the value provided by the temperature sensor within the indoor unit. The microprocessor control will activate indoor unit operation when the indoor room temperature falls below or rises above a setpoint temperature, at which point, a signal is sent to the outdoor unit to begin the appropriate mode. The microprocessor will also provide self-diagnostics and auto restart functions. A field-supplied four­wire power / communications cable must be installed to connect the indoor unit(s) to the outdoor unit.
Controls
The indoor unit casing has a factory-standard, integral infrared sensor designed to communicate with the supplied LG wireless handheld remote controller. An optional LG supplied wired controller is available as an additional accessory. Communication between the
indoor units and the outdoor unit is accomplished through 14 AWG,
four-core, stranded and shielded power / communication cable.
Condensate
The unit is designed for gravity draining of condensate and includes a flexible drain hose capable of installation in one of two directions. Unit includes a connection that is compatible with the AquaGuard® AG-9300-LG condensate sensor.
Art Cool Gallery™
Features
• Inverter (Variable speed fan)
• Chaos swing
• Jet cool
• Group control
• Self-cleaning indoor coil
• Auto operation / auto restart operation
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
• 24-Hour on/off timer
Wireless LCD remote control included;
wired thermostat available (sold separately)
ART COOL G ALLERY™ | 29
Page 30
ART COOL GALLERY INDOOR UNITS
MULTI
F
MAX
MULTI
F
General Data / Specications
Table 13: Multi F Art Cool Gallery Indoor Unit General Data.
Model Name LMAN097HVP LMAN127HVP
Nominal Cooling Capacity (Btu/h)
Nominal Heating Capacity (Btu/h)
1
1
Operating Range
Cooling (°F WB)
Heating (°F DB)
Fan
Type
Motor Output (W) x Qty.
Motor/Drive
Brushless Digitally Controlled / Direct Brushless Digitally Controlled / Direct
Airflow Rate CFM (H/M/L)
Unit Data
Refrigerant Type
2
Refrigerant Control
Power Supply V, Ø, Hz3
Rated Amps (A)
Sound Pressure Level dB(A) (H/M/L)4
Dimensions (W x H x D, in.)
23-5/8 x 23-5/8 x 5-25/32 23-5/8 x 23-5/8 x 5-25/32
Net Unit Weight (lbs.) Shipping Weight (lbs.) Power Wiring / Communications Cable
(No. x AWG)5
Heat Exchanger (Row x Column x Fin / inch) x Number
Piping
Liquid (in.)
Vapor (in.)
Drain O.D. / I.D. (in.)
1
Nominal capacity is rated 0 ft. above sea level with corresponding refrigerant piping length in
accordance with standard length of each outdoor unit and a 0 ft. level difference between outdoor and
Multi F and Multi F MAX Indoor Unit Engineering Manual
indoor units. All capacities are net with a combination ratio between 95 – 105%. Nominal cooling 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). Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF
wet bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
2
This unit comes with a dry helium charge.
9,000 11,200
10,400 13,300
57-77 57-77
59-81 59-81
Turbo Turbo
24 x 1 24 x 1
272 / 208 / 155 314 / 258 / 198
R410A R410A
EEV EEV
208-230, 1, 60 208-230, 1, 60
0.2 0.2
39 / 35 / 31 42 / 38 / 34
32 32
37 37
4 x 14 4 x 14
(2 x 20 x 21) x 1 (2 x 20 x 21) x 1
1/4 1/4
3/8 3/8
27/32, 5/8 27/32, 5/8
3
Acceptable operating voltage: 187V-253V.
4
Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745 and are the same in both cooling and heating mode. These values can increase due to ambient conditions during operation.
5
All power wiring / communications cable to the IDUs be minimum 14 AWG, 4-conductor, stranded,
shielded or unshielded (if shielded, must be grounded to chassis at ODU only) and must comply with applicable local and national codes.
30 | ART CO OL GALLERY™
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 31
ART COOL GALLERY INDOOR UNITS
MULTI
F
MAX
MULTI
F
Figure 31: LMAN097HVP and LMAN127HVP Dimensions.
Dimensions
Supply Air Vane
Supply
Air
Supply Air Vane
Supply Air
Art Cool Gallery™
Supply Air Vane
Supply
Air
Return Air Inlet
Discharge Air Grille
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ART COOL G ALLERY™ | 31
Page 32
ART COOL GALLERY INDOOR UNITS
MULTI
F
MAX
MULTI
F
Cooling Capacity Table
Table 14: Multi F Art Cool Gallery Indoor Units Cooling Capacity Table.
Model No. /
Nominal Capacity
of Indoor Unit
(Btu/h)
LMAN097HVP
9,000
LMAN127HVP
12,000
Multi F and Multi F MAX Indoor Unit Engineering Manual
TC = Total Capacity (kBtu/h).
SHC: Sensible Heat Capacity (kBtu/h).
Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal cooling 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). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently.
Outdoor Air
Temp.
(°F DB)
14 8.82 5.68 9.37 6.00 9.92 5.81 10.31 5.93 11.01 5.98 11.56 6.09 20 8.82 5.72 9.36 6.04 9.91 5.85 10.31 5.98 11.01 6.03 11.55 6.14 25 8.81 5.77 9.36 6.09 9.90 5.90 10.30 6.02 11.00 6.07 11.54 6.19 30 8.80 5.81 9.35 6.14 9.90 5.94 10.29 6.07 10.99 6.12 11.54 6.23 35 8.80 5.85 9.34 6.18 9.89 5.99 10.28 6.11 10.98 6.17 11.53 6.28 40 8.79 5.90 9.33 6.23 9.88 6.03 10.27 6.16 10.97 6.21 11.52 6.33 45 8.78 5.94 9.33 6.28 9.87 6.08 10.27 6.21 10.96 6.26 11.51 6.38 50 8.78 5.99 9.32 6.32 9.87 6.12 10.26 6.25 10.96 6.30 11.50 6.42 55 8.77 6.03 9.31 6.37 9.86 6.17 10.25 6.30 10.95 6.35 11.49 6.47 60 8.76 6.07 9.31 6.42 9.85 6.21 10.24 6.34 10.94 6.40 11.48 6.52 65 8.76 6.12 9.30 6.46 9.84 6.26 10.24 6.39 10.93 6.44 11.47 6.56 70 8.75 6.16 9.29 6.51 9.84 6.30 10.23 6.43 10.92 6.49 11.47 6.61 75 8.54 6.06 9.08 6.41 9.62 6.21 10.01 6.35 10.71 6.41 11.25 6.54 80 8.33 5.96 8.87 6.31 9.41 6.12 9.80 6.26 10.49 6.33 11.03 6.46 85 8.12 5.85 8.66 6.20 9.20 6.03 9.59 6.17 10.28 6.24 10.82 6.38 90 7.91 5.74 8.45 6.09 8.99 5.93 9.37 6.07 10.06 6.16 10.60 6.30
95 7.68 5.68 8.22 6.04 8.75 5.88 9.00 5.94 9.83 6.12 10.36 6.27 100 7.50 5.52 8.03 5.89 8.57 5.74 8.88 5.85 9.64 5.99 10.17 6.14 105 7.31 5.37 7.84 5.73 8.38 5.60 8.77 5.76 9.45 5.86 9.99 6.01 110 7.12 5.19 7.66 5.55 8.19 5.43 8.58 5.58 9.26 5.69 9.80 5.85 115 6.94 5.03 7.47 5.39 8.01 5.29 8.39 5.44 9.08 5.56 9.61 5.71 118 6.82 5.00 7.36 5.36 7.89 5.26 8.28 5.42 8.96 5.54 9.50 5.70 122 6.79 4.98 7.32 5.35 7.86 5.25 8.24 5.41 8.93 5.53 9.46 5.69
14 10.98 7.06 11.66 7.46 12.34 7.22 12.84 7.38 13.71 7.44 14.39 7.58
20 10.97 7.12 11.65 7.52 12.33 7.28 12.83 7.43 13.70 7.50 14.38 7.64
25 10.96 7.17 11.64 7.58 12.32 7.34 12.82 7.49 13.69 7.55 14.37 7.70
30 10.95 7.23 11.63 7.64 12.31 7.39 12.81 7.55 13.68 7.61 14.36 7.76
35 10.95 7.28 11.63 7.69 12.31 7.45 12.80 7.61 13.66 7.67 14.34 7.82
40 10.94 7.34 11.62 7.75 12.30 7.51 12.79 7.66 13.65 7.73 14.33 7.87
45 10.93 7.39 11.61 7.81 12.29 7.56 12.78 7.72 13.64 7.79 14.32 7.93
50 10.92 7.45 11.60 7.87 12.28 7.62 12.77 7.78 13.63 7.84 14.31 7.99
55 10.91 7.50 11.59 7.92 12.27 7.67 12.76 7.83 13.62 7.90 14.30 8.05
60 10.90 7.56 11.58 7.98 12.26 7.73 12.75 7.89 13.61 7.96 14.29 8.11
65 10.90 7.61 11.57 8.04 12.25 7.78 12.74 7.95 13.60 8.02 14.28 8.17
70 10.89 7.67 11.56 8.10 12.24 7.84 12.73 8.01 13.59 8.07 14.27 8.23
75 10.63 7.54 11.30 7.97 11.97 7.73 12.46 7.90 13.32 7.97 14.00 8.13
80 10.36 7.41 11.04 7.85 11.71 7.62 12.19 7.79 13.05 7.87 13.73 8.04
85 10.10 7.27 10.77 7.72 11.45 7.50 11.93 7.67 12.79 7.77 13.46 7.94
90 9.84 7.14 10.51 7.58 11.18 7.38 11.67 7.56 12.52 7.66 13.19 7.83
95 9.56 7.06 10.23 7.51 10.89 7.32 11.20 7.39 12.23 7.62 12.89 7.80 100 9.33 6.87 10.00 7.32 10.66 7.15 11.05 7.28 11.99 7.45 12.66 7.64 105 9.10 6.68 9.76 7.13 10.43 6.97 10.91 7.16 11.76 7.29 12.43 7.48 110 8.86 6.46 9.53 6.90 10.20 6.76 10.68 6.95 11.53 7.08 12.19 7.27 115 8.63 6.26 9.30 6.71 9.96 6.58 10.44 6.77 11.30 6.91 11.96 7.11 118 8.49 6.22 9.16 6.67 9.82 6.54 10.30 6.74 11.16 6.89 11.82 7.09 122 8.44 6.20 9.11 6.65 9.78 6.53 10.26 6.73 11.11 6.88 11.78 7.08
68 / 57 73 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC
Indoor Air Temp. °F DB / °F WB
32 | ART COOL G ALLERY™
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Page 33
ART COOL GALLERY INDOOR UNITS
MULTI
F
MAX
MULTI
F
Heating Capacity Table
Table 15: Multi F Art Cool Gallery Indoor Units Heating Capacity Table.
Model No. /
Nominal Capacity
of Indoor Unit
(Btu/h)
LMAN097HVP
9,000
LMAN127HVP
12,000
TC = Total Capacity (kBtu/h). Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
Outdoor Air Temp. Indoor Air Temp. °F DB
°F DB °F WB
0 -0.4 5.35 5.28 5.23 5.20 5.12 4.90
5 4.5 6.03 5.95 5.90 5.88 5.80 5.58
10 9 6.71 6.63 6.58 6.56 6.48 6.26
17 15 7.61 7.54 7.49 7.46 7.39 7.14
20 19 7.95 7.88 7.83 7.80 7.72 7.46
25 23 8.52 8.44 8.39 8.37 8.29 7.99
30 28 9.01 8.93 8.88 8.86 8.78 8.52
35 32 9.50 9.42 9.37 9.34 9.27 9.04
40 36 9.94 9.86 9.81 9.78 9.71 9.48
45 41 10.37 10.30 10.25 10.22 10.15 9.92
47 43 10.55 10.48 10.43 10.40 10.32 10.10
50 46 10.72 10.64 10.59 10.57 10.49 10.24
55 51 11.00 10.93 10.88 10.85 10.78 10.48
60 56 11.00 10.93 10.88 10.85 10.78 10.52
63 59 11.00 10.93 10.88 10.85 10.78 10.55
68 64 11.00 10.93 10.88 10.85 10.78 10.60
0 -0.4 6.84 6.75 6.68 6.65 6.55 6.26
5 4.5 7.71 7.61 7.55 7.52 7.42 7.13
10 9 8.58 8.48 8.42 8.38 8.29 8.00
17 15 9.73 9.64 9.57 9.54 9.44 9.14
20 19 10.17 10.07 10.01 9.98 9.88 9.54
25 23 10.89 10.79 10.73 10.70 10.60 10.22
30 28 11.52 11.42 11.36 11.32 11.23 10.89
35 32 12.14 12.05 11.98 11.95 11.85 11.57
40 36 12.71 12.61 12.55 12.51 12.42 12.13
45 41 13.27 13.17 13.11 13.08 12.98 12.69
47 43 13.49 13.40 13.33 13.30 13.20 12.91
50 46 13.71 13.61 13.55 13.52 13.42 13.10
55 51 14.07 13.97 13.91 13.88 13.78 13.40
60 56 14.07 13.97 13.91 13.88 13.78 13.46
63 59 14.07 13.97 13.91 13.88 13.78 13.49
68 64 14.07 13.97 13.91 13.88 13.78 13.55
61 64 68 70 72 75
TC TC TC TC TC TC
Art Cool Gallery™
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ART COOL G ALLERY™ | 33
Page 34
ART COOL GALLERY INDOOR UNITS
s
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (0dB = 20μPa)
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate Hearing Threshold
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (0dB = 20μPa)
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate Hearing Threshold
LMAN097HVP LMAN127HVP
MULTI
F
MAX
MULTI
F
Acoustic Data
Figure 32: Sound Pressure Level Measurement Location.
3.3ft
2.6ft
Microphone
Figure 33: Sound Pressure Level Diagrams.
Measurement taken 2.6′ below the bottom of the unit and at a
distance of 3.3′ from face of unit.
• Measurements taken with no attenuation and units operating at full load normal operating condition.
• Sound level will vary depending on a range of factors such as construction (acoustic absorption coefficient) of particular area in which the equipment is installed.
• Sound power levels are measured in dB(A).
• Tested in anechoic chamber per ISO Standard 3745.
Table 16: Sound Pressure Levels (dB[A]).
Sound Pressure Levels (dB[A]) (Cooling and Heating)
Model No.
High Fan Speed
Medium Fan
Speed
Low Fan Speed
LMAN097HVP 39 35 31
LMAN127HVP 42 38 34
Multi F and Multi F MAX Indoor Unit Engineering Manual
34 | ART CO OL GALLERY™
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Due to our policy of continuous product innovation, some specications may change without notication.
Page 35
ART COOL GALLERY INDOOR UNITS
gH
Cooling Heating
MULTI
F
MAX
MULTI
F
Air Velocity and Temperature Distribution
Figure 34: LMAN097HVP Air Velocity and Temperature Distribution Charts.
Discharge angle: 40° Discharge angle: 50°
Coolin
eating
Air velocity [ft/s]
9f t
7f t
6.6
3f t
0f t
0f t
9f t
7f t
52
55
3f t
0f t
0f t
3.3
1.6
16ft 13ft 10ft7ft 3f t
Temperature [°F]
59
66
16ft 13ft 10ft7ft 3f t
63
4.6
Figure 35: LMAN127HVP Air Velocity and Temperature Distribution Charts.
Air velocity [ft/s]
1.6
16ft 13ft 10ft7ft 3f t
Temperature [°F]
91
16ft 13ft 10ft7ft 3f t
99
95
9f t
7f t
6.6
3f t
4.9
3.3
0f t
0f t
9f t
Art Cool Gallery™
7f t
109
3f t
106
102
0f t
0f t
Discharge angle : 40°Discharge angle : 50°
Air velocity [ft/s]
16ft 13ft 10ft 7ft3ft
Temperature [°F]
66
16ft 13ft 10ft 7ft3ft
4.9
1.6
3.3
63
9f t
7f t
6.6
3f t
0f t
0f t
9f t
7f t
52
55
59
3f t
0f t
0f t
Air velocity [ft/s]
16ft 13ft 10f t7ft 3f t
Temperature [°F]
16ft 13ft 10f t7ft 3f t
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
9f t
7f t
8.2
6.6
3f t
4.9
1.6
91
3.3
106
102
99
95
ART COOL G ALLERY™ | 35
109
11 3
0f t
0f t
9f t
7f t
3f t
0f t
0f t
Page 36
ART COOL GALLERY INDOOR UNITS
MULTI
F
MAX
MULTI
F
Refrigerant Flow Diagram
Figure 36: Art Cool Gallery Indoor Unit Refrigerant Flow Diagram.
Heating
Heat Exchanger
Turbo Fan
Cooling
Evaporator Inlet Temperature
Thermistor for
M
Thermistor for Evaporator
Outlet Temperature
Gas pipe connection port (flare connection)
Indoor Air Temperature
Thermistor for
Liquid pipe connection port (flare connection)
Table 17: Art Cool Gallery Indoor Unit Refrigerant Pipe Connection Port Diameters.
Model No. Vapor (inch) Liquid (inch)
LMAN097HVP
LMAN127HVP
Ø3/8 Ø1/4
Multi F and Multi F MAX Indoor Unit Engineering Manual
Table 18: Art Cool Gallery Indoor Unit Thermistor Details.
Description (Based on Cooling Mode) PCB Connector
36 | ART CO OL GALLERY™
Indoor Air Temperature Thermistor
Evaporator Inlet Temperature Thermistor
Evaporator Outlet Temperature Thermistor CN-TH2
Water Level Sensor (Optional) CN-TH3
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
CN-TH1
Page 37
ART COOL GALLERY INDOOR UNITS
MULTI
F
MAX
MULTI
F
Figure 37: Multi F Art Cool Gallery Indoor Units Wiring Diagram.
Wiring Diagram
Art Cool Gallery™
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ART COOL G ALLERY™ | 37
Page 38
ART COOL GALLERY INDOOR UNITS
WARNING
MULTI
F
MAX
MULTI
F
Factory Supplied Parts and Materials
Factory Supplied Parts
Table 19: Parts Table.
Part Quantity Image
Installation Guide One (1)
Type “A” Screws and
Plastic Anchors
Type “B” Screws
(M4 x 12L)
Wireless Handheld
Controller with Holder
(AKB73635607)
Four (4)
Each
Two (2)
One (1)
Factory Supplied Materials
• Owner’s Manual
• Installation Manual
Required Tools
• Level
• Screwdriver
• Electric drill
• Hole core drill
• Flaring tool set
• Spanner (Half union)
• Thermometer
Installation work must be performed by trained personnel and in accordance with national wiring standards and all local or other applicable codes.
Multi F and Multi F MAX Indoor Unit Engineering Manual
Improper installation can result in re, electric shock, physical injury, or death.
Note:
Read all instructions before installing this product. Become familiar with the unit’s components and connections, and the order of installation. Incorrect installation can degrade or prevent proper operation.
38 | ART CO OL GALL ERY™
Due to our policy of continuous product innovation, some specications may change without notication.
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Page 39
ART COOL GALLERY INDOOR UNITS
>8 inches
>20 inches
Recommended height >5 feet from the floor
>20 inches
7/16 inch
Horizontal
Plastic Anchor
1
2
3
4
MULTI
F
MAX
MULTI
F
Installation and Best Layout Practices
Selecting the Best Location
Do’s
• Place the unit where air circulation will not be blocked.
• Place the unit where drainage can be obtained easily.
• Place the unit where noise prevention is taken into consideration.
• Ensure there is sufficient space from the ceiling and floor.
• Ensure there is sufficient maintenance space.
• Locate the indoor unit in a location where it can be easily connected to the outdoor unit/branch distribution unit.
Don’ts
Do not install the unit near a heat or steam source, or where considerable amounts of oil, iron powder, or flour are used.
Do not install the unit where sulfuric acid and flammable or corrosive gases are generated, vented into, or stored.
Do not install the unit near high-frequency generators.
Do not install the unit near a doorway.
The unit will be damaged, will malfunction, and/ or will not operate as designed if installed in any of the conditions listed.
Indoor units (IDUs) must not be placed in an environment where the IDUs will be exposed to
harmful volatile organic compounds (VOCs) or in environments where there is improper air make
up or supply or inadequate ventilation. If there are concerns about VOCs in the environment where
the IDUs are installed, proper air make up or supply and/or adequate ventilation must be provided. Additionally, in buildings where IDUs will be exposed to VOCs, consider a third party factory-applied
epoxy coating to the fan coils for each IDU where the entire coil is dipped, not sprayed.
If the unit is installed near a body of water, the installation parts are at risk of corroding. Appropriate
anti-corrosion methods must be taken for the unit and all installation parts.
Figure 38:Minimum Clearance Requirements.
Figure 39:Using the Installation Guide.
Art Cool Gallery™
Installing in an Area Exposed to Unconditioned Air
In some installation applications, areas (oors, walls) in some rooms will be exposed to unconditioned air (room will be above or next to an unheated garage or storeroom). To countermeasure:
• Verify that carpet is or will be installed (carpet will increase the temperature by three degrees).
• Add insulation between the floor joists.
• Install radiant heat or another type of heating system to the floor.
Using the Installation Guide
1. Choose an appropriate location for the indoor unit. To hang the installation guide, verify that it is
level and plumb, and then tape it to the wall.
2. Drill four (4) 1/4-inch diameter holes with a depth of 1-3/16 to 1-3/8 inches for the mounting
screws. Drill one (1) two (2) inch-diameter hole for the field-installed refrigerant and drain piping.
3. Insert a plastic anchor into each of the mounting holes.
4. Screw the top two (2) screws into the wall. Do not flush them to the wall; leave a 7/16 inch
space for hanging the indoor unit.
Note:
If the unit is installed near a body of water, certain components are at risk of being corroded. Appropriate anti-corrosion methods must be taken for the unit and all components.
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ART COOL G ALLERY™ | 39
Page 40
ART COOL GALLERY INDOOR UNITS
Panel Connector
1A 1B
2A 2B
3
Side cover
Access Hole for Piping
Rubber Stopper
Choose a Side for the Drain Connections
Field-Installed Drain Piping
Adhesive
Drain
Hose
MULTI
F
MAX
MULTI
F
Installation and Best Layout Practices
Preparing the Indoor Unit for Installation
Removing the Front Panel
1. First pull the top of the front panel up (1A) and then out (1B).
2. Remove the two (2) screws at the bottom (2A), then lift off the front
panel (2B).
3. To completely detach the front panel, disconnect the panel connector
found at the top of the indoor unit (3).
Removing the Piping and Side Covers
1. Unscrew the center cover.
Figure 40:Preparing for Installation.
Figure 41:Removing the Piping and Side Covers.
2. Remove the cover from the side of the indoor unit chosen for the piping connections,
and then knock out the piping access hole. If the refrigerant piping will be connected through the back of the unit, the access hole does not need to be knocked out.
3. Remove any burrs that will have been made.
Preparing the Drain Hose
1. Remove the rubber stopper from the chosen side of the indoor unit.
Multi F and Multi F MAX Indoor Unit Engineering Manual
2. Insert the drain hose into the handle of the drain pan.
3. Connect the drain hose to the field-installed drain piping.
40 | ART COOL GALLERY™
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Figure 42:Preparing the Drain Hose.
Page 41
ART COOL GALLERY INDOOR UNITS
Installation Guid
Drain hose
Loop
Connecting pipe
Power wiring / Communication cable
Tape
Drain hose
1
2
12
MULTI
F
MAX
MULTI
F
Installation and Best Layout Practices
Preparing the Refrigerant and Drain Piping Connections
1. Depending on the installation requirements, route the indoor unit refrigerant piping and the
drain hose to the left, right (see guidelines below), or rear of the frame.
2. Bundle the piping and drain hose with tape where they meet near the indoor unit frame. Po-
sition the drain hose at the bottom of the bundle (positioning the drain hose at the top of the bundle will cause the drain pan to overflow inside the indoor unit).
Installing Piping on the Right Side of the Indoor Unit Frame
1. Press on the top of the clamp, and then slowly guide the piping downward.
2. Bend the piping to the right side of the indoor unit frame.
Do not bend the piping/drain hose from side to side; it will damage the components.
Figure 44:Right Side Piping Access.
Figure 43:Preparing the Refrigerant /
Drain Connections.
Art Cool Gallery™
Hanging the Indoor Unit Frame
1. Remove the installation guide and hang the indoor unit on the top two (2) screws. Verify the indoor unit is hanging securely on the screws.
2. Align the holes at the bottom of the indoor unit to the mounting holes. Tighten first the top screws, then tighten the bottom screws.
3. Verify that the indoor unit is completely secured to the wall by gently shaking it up and down.
Figure 45:Hanging the Indoor Unit Frame.
1
Holes for Hanging (On back of
indoor unit)
2
3
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
e
Plastic Anchors
ART COOL G ALLERY™ | 41
Page 42
ART COOL GALLERY INDOOR UNITS
Indoor unit piping
Flare nut Field-installed
piping
Spanner
Field-installed piping
Flare nut
Torque wrench
Narrow tape
Adhesive
Drain extension
Indoor unit drain hose
Bands
Insulation
Narrow tape
Field-supplied piping
Wide tape
Wrap with tape
Indoor unit piping
Piping
Wrap with tape
Drain hose
Piping
Wide tape
1.
2.
3.
Slope Down
Indoor Unit s
Drain extension
MULTI
F
MAX
MULTI
F
Installation and Best Layout Practices
Connecting the Indoor Unit Piping to the Field-Installed Piping
1. Center align the indoor unit piping (refrigerant and drain) and the field-installed piping, then hand tighten the flare nut.
2. Tighten the flare nut with a torque wrench.
3. Attach the drain tube piping to the indoor unit drain hose as shown below.
Figure 47:Extending the Drain Hose.
If the drain hose is routed in­side a room, add insulation to prevent condensation from forming.
Insulating the Refrigerant and Drain Piping
Figure 46:Indoor Unit to Field-Installed Piping Connection.
Figure 48:Insulating the Piping.
Ensure all piping is insulated. Exposed piping can cause burns if touched.
Refrigerant Piping Insulation
Field-installed vapor and liquid refrigerant piping lines must be properly and completely covered in insulation (up to the indoor unit piping connections). Any exposed piping will generate condensate or will cause burns if touched. Insulation for this field-installed refrig­erant piping must have a minimum heat resistance of 248°F.
Drain Piping Insulation
Drain piping must have insulation a minimum of 7/32 inches thick.
Installing the Insulation
1. Overlap the insulation at the connection of the field-installed piping and the indoor unit piping. Tape together so there are no gaps.
2. Secure insulation to the rear piping housing section with vinyl tape.
3. Bundle the piping and drain hose with tape where they meet at the back of the indoor unit frame. Position the drain hose at the bottom of the bundle (positioning the drain hose at the top of the bundle will cause the drain pan to overflow inside the indoor
Multi F and Multi F MAX Indoor Unit Engineering Manual
unit).
Drain Slope
Drain hose must point down so water can flow away easily.
Figure 49:Drain Piping Slope.
42 | ART C OOL GAL LERY™
Checking the Drainage System
1. Pour water on the in­door unit evaporator.
2. Ensure the water flows through and out of the hose and away from the indoor unit without leaking.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Due to our policy of continuous product innovation, some specications may change without notication.
Figure 50:Checking the Drainage System.
Page 43
ART COOL GALLERY INDOOR UNITS
MULTI
F
MAX
MULTI
F
Installation and Best Layout Practices
Power Wiring / Communications Cable Guidelines
• Follow manufacturer’s circuit diagrams in the technical manuals.
• Confirm power source specifications.
• Confirm that the electrical capacity is sufficient.
• Starting current must be maintained ±10 percent of the rated current marked on the outdoor unit name plate.
• Confirm cable thickness specifications.
• It is required that a circuit breaker is installed, especially if conditions could become wet or moist.
• Include a disconnect in the power wiring system, add an air gap contact separation of at least 1/8 inch in each active (phase) conductor.
• Loose wiring will cause unit to malfunction, overheat, and catch fire, resulting in severe injury or death.
Note:
Terminal screws will become loose during transport. Properly tighten the terminal connections during installation. A voltage drop will cause the following problems:
Magnetic switch vibration, fuse breaks, or disturbance to the normal function of an overload protection device.
• Compressor will not receive the proper starting current.
Art Cool Gallery™
Connecting the Power Wiring and Communications Cable
1. Insert the power wiring/communications cable from the out­door unit or branch distribution unit (Multi F MAX systems only) through the access hole of the indoor unit (ground wire must be longer than the other wires/cables). Unscrew the control board cover.
2. Connect each wire to its appropriate terminal on the indoor unit control board. Verify that the color and terminal numbers from the outdoor unit or branch distribution unit (Multi F MAX systems only) wiring match the color and terminal numbers on the indoor unit.
3. Secure the power wiring/communications cable to the control board.
4. Reattach the control board cover.
Figure 52:Simplied View of Indoor Unit to Outdoor Unit / Branch Distribution Unit Terminal Connections—LMAN097HVP and LMAN127HVP models.
Outdoor Unit Terminal Block or
GND
Indoor Unit Terminal Block
BR
GRN / YLW
32(L2)1(L1)
BL
RD
Branch Distribution Unit Terminal Block
(Multi F MAX Systems Only)
3 or S
GND
Figure 51:Connecting the Power Wiring / Communications Cable.
Control Board Cover
Lock nut
(field supplied)
Conduit
(field supplied)
1(L1)2(L2) 3
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ART COOL G ALLERY™ | 43
Page 44
ART COOL GALLERY INDOOR UNITS
MULTI
F
MAX
MULTI
F
Installation and Best Layout Practices
Controller Options
Art Cool Gallery wall-mounted indoor units include a handheld controller (AKB73635607), but optional LG-supplied wired controllers are available.
Wireless Handheld Controller
Figure 53:AKB73635607 Wireless Controller.
Display Screen
Control Panel
Table 20: AKB73635607 Wireless Controller Functions.
Control
Panel
Button
Display
Screen
Description
Air circulation button1: Circulates the room air without operating in cooling or heating mode.
Sleep Mode Auto Button1: Sets the sleep mode auto operation.
Temperature Adjustment Buttons: Raises or lowers temperature setpoint in
cooling and heating operation.
On / Off Button: Turns the power on/off.
Indoor Fan Speed Button: Changes the fan speed.
Operation mode selection button1: Selects the operation mode. Cooling operation / Auto operation or auto changeover / Dehumidifying operation / Heating operation
Jet Cool / Jet Heat Button1: Warms up or cools down the indoor temperature within a short period.
Air Flow Direction Button: Adjusts the airflow direction.
Temperature Display Button: Displays the room temperature. Press and
hold button down for five (5) seconds to change from °C to °F.
Operation Mode Sequence
Cooling Mode
Multi F and Multi F MAX Indoor Unit Engineering Manual
Auto Operation
Dehumidification Mode
Heating Mode
1
Depending on the indoor unit model, some functions will not be supported.
44 | ART CO OL GALLERY™
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Timer button: Sets the current time and the start/end times.
Navigation/Functions Button1: Adjusts the time and sets the special functions. Auto clean / Operates energy saving cooling / Adjusts the brightness of the indoor unit display
Set/Clear Button: Sets or cancels functions.
Reset Button: Resets the air conditioner settings.
Page 45
ART COOL GALLERY INDOOR UNITS
4 to 5 feet
above the floor
NO
NO
NO
YES
Remote Controller
TEMP
Remote Controller
TEMP
Re
m
ot
e
C
o
n
t
r
ol
l
er
TEMP
Top
Wall Wall
Wall Wall
Installing the Controller
Removing the Controller
Indoor Unit Terminal Block
GRN / YLW
(Multi F MAX Systems Only)
MULTI
F
MAX
MULTI
F
Wired Controller Connections
Figure 54:Wired Controller Connection on the Indoor Unit Terminal Block.
GND
Installation and Best Layout Practices
1(L1 )2(L2)
BR
BL
3
RD
To Outdoor Unit or Branch Distribution Unit
CN-REMO
To Wired Controller
Wired Controller Placement
Wired controllers include a sensor to detect room temperature. To maintain comfort
levels in the conditioned space, the wired controller must be installed in a location away from direct sunlight, high humidity, and where it could be directly exposed to cold air. Controller must be installed four (4) to five (5) feet above the floor where its LED display can be read easily, in an area with good air circulation, and where it can detect an average room temperature.
Do not install the wired controller near or in:
• Drafts or dead spots behind doors and in corners
• Hot or cold air from ducts
• Radiant heat from the sun or appliances
• Concealed pipes and chimneys
• An area where temperatures are uncontrolled, such as an outside wall
Hanging the Wired Controller
1. The controller wiring/cable can be installed in one of three direc-
tions: top, back, or on the right side. If top or right side installation
is desired, remove cable guide grooves on the controller, and then position wiring/cable on applicable side.
2. Choose and mark the area of installation, and then screw the wall plate into place (using the provided parts). Install the controller wall plate to fit the electrical box if one is present. Ensure that no gaps exist between the wall plate and the wall itself.
3. Arrange wiring/cables so as not to interfere with the controller circuitry. Position the wired controller on the wall plate. Snap into place by pressing the bottom part of the wired controller onto the wall plate. Make sure that no gaps exist between the wired controller and the wall plate on all sides.
4. To remove wired controller from the wall plate, insert a screw­driver into the two holes at the bottom. Twist screwdriver to release controller. Do not damage the controller components when removing.
Figure 55:Proper Location for the Wired Controller.
Figure 56:Removing the Cable Guide Grooves.
Top
Back
Figure 57:Attaching the Wall Plate.
Right Side
Figure 58:Installing/Removing the Controller.
Right Side
Art Cool Gallery™
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ART COOL G ALLERY™ | 45
Page 46
12
34
ART COOL GALLERY INDOOR UNITS
MULTI
F
MAX
MULTI
F
Installation and Best Layout Practices
Assigning the Thermistor for Temperature Detection
Each indoor unit includes a return air thermistor assigned to sense the temperature. If a wired controller is installed, there is a choice of sensing temperature with either the indoor unit return air thermistor or the thermistor in the wired controller. It is also an option to set both thermistors to sense temperature so that indoor unit bases its operation on the first thermistor to reach the designated temperature differen­tial. For applicable indoor units, an optional Remote Temperature Sensor can be used in lieu of the return air thermistor—either alone or in conjunction with a wired controller thermistor as previously described.
Finalizing Indoor Unit Installation
1. Verify that the side covers are closed or opened, depending on installation requirements. Place the power wiring / communica­tions cable in the bottom groove along the left side of the frame.
2. Reconnect the panel connector found at the top of the indoor unit.
3. Attach the top part of the front panel, then position its tabs in the grooves on the bottom part of the indoor unit frame.
4. To ensure the front panel tabs are securely positioned in the grooves, adjust the panel by loosening or tightening the screws at the bottom.
Figure 59:Final Installation Step—Reattaching the Front Panel.
Front Panel
Connector
Multi F and Multi F MAX Indoor Unit Engineering Manual
46 | ART CO OL GALL ERY™
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 47
Art Cool Gallery™
MULTI
F
MAX
MULTI
F
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ART COOL G ALLERY™ | 47
Page 48
STANDARD
WALL-MOUNTED
INDOOR UNIT DATA
“Mechanical Specifications” on page 49
“General Data / Specifications” on page 50
“Dimensions” on page 51
“Cooling Capacity Table” on page 53
“Heating Capacity Table” on page 56
“Acoustic Data” on page 58
“Air Velocity and Temperature Distribution” on page 60
“Refrigerant Flow Diagram” on page 62
“Wiring Diagram” on page 63
“Factory Supplied Parts and Materials” on page 65
“Installation and Best Layout Practices” on page 66
Page 49
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Mechanical Specications and Features
Standard Wall-Mounted Indoor Units
General
All LG indoor units are factory assembled, wired, piped, and pro-
vided with a control circuit board, fan, and motor. Standard Wall-
Mounted units have a sound rating no higher than 46 dB(A) as tested per KSA0701 ISO Standard 3745.
Coil
Indoor unit coils are comprised of a minimum of two rows of aluminum fins mechanically bonded to copper tubing. The coils are pressure tested at the factory. Each unit is provided with a factory installed condensate drain pan below the coil.
Refrigerant System
The system is designed for use with R410A refrigerant. The refrig­eration circuit is pressure-tested at the factory and shipped with a holding charge of helium gas. Refrigerant pipe connections are 45° flare. All refrigerant lines from the outdoor unit to the indoor units must be field insulated.
Electrical
The indoor units require 208–230Vac/60Hz/1Φ power with voltage
variance of no more than ±10%.
Casing
The units mount on a vertical surface. They are shipped with a sepa­rate back plate that secures the unit to the wall, protruding no more than nine (9) inches. Refrigerant piping can be installed in one (1) of four (4) different directions.
Finish
The Standard Wall-Mounted unit has a curved architectural panel
with a pearl white finish. Unit casing has a pearl white or dark gray finish and is manufactured of heavy-duty acrylonitrile butadiene styrene (ABS) and high impact polystyrene (HIPS) plastic.
Fan Assembly and Control
The unit has a single, direct-drive, crossow fan made of high strength
ABS plastic. The fan motor is brushless digitally controlled (BLDC) with permanently lubricated and sealed ball bearings. The fan / motor assembly is mounted on vibration attenuating rubber grommets. Fan speed is controlled using a microprocessor-based direct digitally
controlled algorithm that provides pre-programmed, eld-selectable xed or auto fan speeds in the Heating and Cooling modes. For Standard Wall-Mounted units, the indoor fan has Low, Med, High, Jet
Cool, and Auto settings for Cooling mode; and has Low, Med, High, Jet Heat, and Auto settings for Heating mode. The Auto setting adjusts the fan speed based on the difference between the controller setpoint and space temperature. Also, the separate Chaos setting provides a
simultaneous and random change in fan speed and ow direction at
the discharge, simulating a natural outdoor breeze.
Features
• Inverter (Variable speed fan)
• Comfort Air
• 3M filter
• Jet cool/Jet Heat
Figure 60: Multi F Standard Wall-Mounted Indoor Unit.
Air Filter
The return air inlet has a factory-supplied primary removable, wash­able filter. The unit is also equipped with a secondary 3M Micro Dust filter. Filters are accessed from the front of the unit without the use of tools.
Airflow Guide Vanes
A factory-installed motorized guide vane controls the direction of airflow from side to side. A motorized louver provides an automatic change in airflow by directing the air up and down for uniform air distribution.
Microprocessor Control
The indoor unit has an integrated control panel to communicate with the outdoor unit. All unit operation parameters are stored in non-vola­tile memory resident on the unit microprocessor. The microprocessor controls space temperature through using the value provided by the temperature sensor within the indoor unit. The microprocessor control will activate indoor unit operation when the indoor room temperature falls below or rises above a setpoint temperature, at which point, a signal is sent to the outdoor unit to begin the appropriate mode. The microprocessor also provides self-diagnostics and auto restart func-
tions. A eld-supplied four-wire power / communications cable must
be installed to connect the indoor unit(s) to the outdoor unit.
Controls
The indoor unit casing has a factory-standard, integral infrared sen­sor to communicate with the supplied LG wireless handheld remote controller. An optional LG supplied wired controller is available as an additional accessory. Communication between the indoor units
and the outdoor unit is accomplished through 14 AWG, four-core,
stranded and shielded power / communication cable. The indoor unit has built-in wi-fi and can be controlled with LG’s SmartThinQ app on a smart device. A field-supplied wi-fi network and smart device are required. The SmartThinQ app is free and is available for Android and iOS smart devices.
Condensate
The unit is designed for gravity draining of condensate and includes a flexible drain hose capable of installation in one of two directions. The unit also includes a connection that is compatible with the Aqua­Guard® AG-9300-LG condensate sensor.
• Group control
• Self-cleaning indoor coil
• Auto operation
• Auto restart operation
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
• Built-in wi-fi
• Dehumidifying function
• Self-diagnostic function
Wireless LCD remote control included
Standard Wall-Mounted
STD. WALL-MOUNTED | 49
Page 50
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
General Data / Specications
Table 21: Multi F Standard Wall-Mounted Indoor Unit General Data.
Model Name LMN079HVT LSN090HSV5 LSN120HSV5 LMN159HVT LSN180HSV5 LMN249HVT
Nominal Cooling Capacity (Btu/h)
Nominal Heating Capacity (Btu/h)
1
1
Operating Range
Cooling (°F WB)
Heating (°F DB)
Fan
Type
Motor Output (W) x Qty.
Motor/Drive
Airflow Rate CFM (H/M/L)
Unit Data
Refrigerant Type
2
Refrigerant Control
Power Supply V, Ø, Hz3
Rated Amps (A)
Sound Pressure Level dB(A)
(H/M/L)4
Dimensions (W x H x D, in.)
Net Unit Weight (lbs.) Shipping Weight (lbs.) Power Wiring / Communications
Cable (No. x AWG)5
Heat Exchanger (Row x Column x
Fin / inch) x Number
Pipe Size
Liquid (in.)
Vapor (in.)
Connection Size
Multi F and Multi F MAX Indoor Unit Engineering Manual
Liquid (in.)
Vapor (in.)
Drain O.D. / I.D. (in.)
1
Nominal capacity is rated 0 ft. above sea level with corresponding refrigerant piping length in accordance with standard length of each outdoor unit and a 0 ft. level difference between outdoor and indoor units. All capacities are net with a combination ratio between 95 – 105%.
Nominal cooling 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). Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF
wet bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
2
This unit comes with a dry helium charge.
7,000 9,000 12,000 14,300 18,000 24,000
8,100 10,900 13,600 15,600 21,600 25,600
57-77
59-81
Cross Flow
30 x 1 60 x 1
Brushless Digitally Controlled / Direct
254 / 204 / 148 268 / 218 / 169 282 / 233 / 177 314 / 268 / 184 558 / 438 / 353 597 / 452 / 367
R410A
EEV
208-230, 1, 60
0.4
35 / 31 / 26 36 / 32 / 27 38 / 34 / 29 42 / 38 / 32 44 / 38 / 34 46 / 41 / 36
32-15/16 x
12-1/8 x 7-7/16
18.3 25.6
23.4 32.2
4 x 14
(2 x 23 x 22) x 1 (2 x 16 x 20) x 1
1/4
3/8 1/2
1/4 3/8 1/4
3/8 5/8 1/2
27/32, 5/8
3
Acceptable operating voltage: 187V-253V.
4
Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745 and are the same in both cooling and heating mode. These values can increase due to ambient conditions during operation.
5
All power wiring / communications cable to the IDUs be minimum 14 AWG, 4-conductor, stranded,
shielded or unshielded (if shielded, must be grounded to chassis at ODU only) and must comply with applicable local and national codes.
39-9/32 x
13-19/32 x 8-9/32
50 | STD. WALL-MOUNTED
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 51
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Figure 61: LMN079HVT, LSN090HSV5, LSN120HSV5, and LMN159HVT Dimensions.
Refrigerant,
Drain Pipe
and Cable
Routing
Knock Out
1/8 (3) x 1/4 (6)
1/4 (6) x 1/8 (3)
1-1/4 (31)
2-7/16 (61.5)
5-31/32 (152)
1-3/32 (50.2)
2 (51)
1-1/16 (26.2)
Hole
2-7/32 (56)
Dimensions
Unit : Inch (mm)
85°
45°
15°
15°
5/8 (15.3)
55°
55°
1-9/32 (32.7)
(61)
2-13/32
* If airflow direction control is available,
Cooling Heating
1-27/32(47)
1-1/2 (38)
Up & Down Left & Right
Connection
Decoration Cover
3-5/8 (92)
2-3/8 (60)
2-5/16
(59)
Communication
Refrigerant, Drain
Pipe and Cable
Routing Knock Out Hole
Approx. 8-19/32 (218) to liquid pipe
Approx. 11-11/32 (288) to gas pipe
Drain Hose
1-7/16 (33.5)
Air Outlet Hole
Terminal Block for
Power Supply and
2 (51)
2-7/32 (56)
Air Outlet Hole
[28-5/32 (715)]
Bottom
Air Outlet
5/16 (8)
11/32 (9)
2-7/32(56)
5-31/32 (152)
3-27/32 (98)
Display & Remote
Controller Signal
Receiver
12-1/8 (308)
Refrigerant,
Drain Pipe
and Cable
Routing
Knock Out
Hole
10-11/32 (263)
5-19/32 (142)
Ø2-9/16 (65)
Air Intake
2-17/32 (64)
32-15/16 (837)
7-7/16 (189)
3-21/32 (93)
[5-29/32 (150)] Air Intake Hole
Left
Right
Rear
Air Intake Hole
30-3/16 (767)
Rear
Standard Wall-Mounted
Connecting Gas/Liquid Pipe
Unit Outline
5-3/16 (132)
12-1/8 (308)
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
29/32 (23)
Fixing the Installation Plate, Drilling Hole
Unit Outline
32-15/16 (837)
In Case of Left Side Piping
29/32 (23)
5-9/32 (134)
7-5/8 (194)
Installation Plate
7-27/32 (199)
7-27/32 (199)
Ø2-9/16 (65)
12-1/8 (308)
12-1/16 (306)
32-15/16 (837)
2-15/32 (63)
3-11/16 (94)
2-15/32 (63)
STD. WALL-MOUNTED | 51
Page 52
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Dimensions
Figure 62: LSN180HSV5 and LMN249HVT Dimensions.
Refrigerant,
Drain Pipe
and Cable
Routing
Knock Out
1/8 (3) x 1/4 (6)
1/4 (6) x 1/8 (3)
1-1/4 (31)
2-7/16 (61.5)
5-31/32 (152)
1-3/32 (50.2)
1-1/16 (26.2)
Hole
2-3/8 (60)
2-3/8 (60)
Unit : Inch (mm)
85°
45°
20°
15°
50°
50°
5/8 (15.3)
Cooling Heating
Up & Down Left & Right
2-15/32 (63)
1-15/32 (37)
1-9/32 (32.7)
(61)
2-13/32
If airflow direction control is available,*
Decoration Cover
3-17/32 (90)
2-1/4 (57)
2-7/32 (56)
Power Supply and
Communication
Refrigerant, Drain
Pipe and Cable
Routing Knock Out
Hole
Approx. 6-5/16 (160) to liquid pipe
Approx. 9-7/16 (240) to gas pipe
Connection
Drain Hose
1-7/16 (33.5)
Terminal Block for
[2-29/32 (74)]
Air Outlet Hole
[34-11/32 (872)]
Air Outlet Hole
Bottom
Air
Outlet
2-3/8 (60)
7/16 (11)
7/16(11)
2-3/8 (60)
5-9/32 (134)
3-9/32 (83)
Display & Remote
Controller Signal
Receiver
13-19/32 (345)
Refrigerant,
Drain Pipe
and Cable
Routing
Knock Out
Hole
11-13/16 (300)
5-29/32 (150)5-29/32 (150)
Ø2-9/16 (65)
Multi F and Multi F MAX Indoor Unit Engineering Manual
39-9/32 (998)
Air Intake
8-9/32 (210)
2-3/32 (53)
4-17/32 (115)
[6-11/16 (170)] Air Intake Hole
Left
Right
Rear
[36-5/32 (918)]
Air Intake Hole
Rear
52 | STD. WALL-MOUNTED
1-1/16 (27)
Installation Plate
Fixing the Installation Plate, Drilling Hole
Connecting Gas/Liquid Pipe
39-9/32 (998)
Unit Outline
In case of Left Side Piping
6-15/32 (164)
13-19/32 (345)
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Unit Outline
1-1/16 (27)
3-9/32 (83)
5-29/32 (150)
13-19/32 (345)
7-13/32 (188)7-13/32 (188)
Ø2-9/16 (65)
14-11/16 (373)
2-23/32 (69)
5-13/32 (137)
2-3/32 (53)
39-9/32 (998)
Page 53
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Cooling Capacity Table
Table 22: Multi F Standard Wall-Mounted Indoor Units Cooling Capacity Table.
Model No. /
Nominal Capacity
of Indoor Unit
(Btu/h)
LMN079HVT
7,000
LSN090HSV5
9,000
TC = Total Capacity (kBtu/h).
SHC: Sensible Heat Capacity (kBtu/h).
Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal cooling 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). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently.
Outdoor Air
Temp.
(°F DB)
14 6.86 4.68 7.29 4.95 7.71 4.79 8.02 4.89 8.57 4.93 8.99 5.03 20 6.86 4.72 7.28 4.99 7.71 4.83 8.02 4.93 8.56 4.97 8.99 5.06 25 6.85 4.76 7.28 5.02 7.70 4.86 8.01 4.97 8.55 5.01 8.98 5.10 30 6.85 4.79 7.27 5.06 7.70 4.90 8.00 5.01 8.55 5.05 8.97 5.14 35 6.84 4.83 7.27 5.10 7.69 4.94 8.00 5.04 8.54 5.09 8.97 5.18 40 6.84 4.87 7.26 5.14 7.68 4.98 7.99 5.08 8.53 5.12 8.96 5.22 45 6.83 4.90 7.25 5.18 7.68 5.01 7.99 5.12 8.53 5.16 8.95 5.26 50 6.83 4.94 7.25 5.22 7.67 5.05 7.98 5.16 8.52 5.20 8.94 5.30 55 6.82 4.97 7.24 5.25 7.67 5.09 7.97 5.19 8.51 5.24 8.94 5.34 60 6.81 5.01 7.24 5.29 7.66 5.12 7.97 5.23 8.51 5.28 8.93 5.38 65 6.81 5.05 7.23 5.33 7.66 5.16 7.96 5.27 8.50 5.31 8.92 5.42 70 6.80 5.08 7.23 5.37 7.65 5.20 7.95 5.31 8.49 5.35 8.92 5.45 75 6.64 5.00 7.06 5.29 7.48 5.13 7.79 5.24 8.33 5.29 8.75 5.39 80 6.48 4.91 6.90 5.20 7.32 5.05 7.62 5.16 8.16 5.22 8.58 5.33 85 6.31 4.82 6.73 5.12 7.15 4.97 7.46 5.09 7.99 5.15 8.41 5.26 90 6.15 4.73 6.57 5.03 6.99 4.89 7.29 5.01 7.83 5.08 8.24 5.19
95 5.98 4.68 6.39 4.98 6.81 4.85 7.00 4.90 7.64 5.05 8.06 5.17 100 5.83 4.56 6.25 4.86 6.66 4.74 6.91 4.82 7.50 4.94 7.91 5.06 105 5.69 4.43 6.10 4.73 6.52 4.62 6.82 4.75 7.35 4.83 7.77 4.96 110 5.54 4.28 5.96 4.58 6.37 4.48 6.67 4.61 7.21 4.70 7.62 4.82 115 5.39 4.15 5.81 4.45 6.23 4.36 6.53 4.49 7.06 4.58 7.48 4.71 118 5.31 4.12 5.72 4.42 6.14 4.34 6.44 4.47 6.97 4.57 7.39 4.70 122 5.28 4.11 5.69 4.41 6.11 4.33 6.41 4.46 6.94 4.56 7.36 4.70
14 8.82 6.04 9.37 6.38 9.92 6.18 10.31 6.31 11.01 6.36 11.56 6.48
20 8.82 6.09 9.36 6.43 9.91 6.23 10.31 6.36 11.01 6.41 11.55 6.53
25 8.81 6.13 9.36 6.48 9.90 6.27 10.30 6.41 11.00 6.46 11.54 6.58
30 8.80 6.18 9.35 6.53 9.90 6.32 10.29 6.46 10.99 6.51 11.54 6.63
35 8.80 6.23 9.34 6.58 9.89 6.37 10.28 6.50 10.98 6.56 11.53 6.68
40 8.79 6.28 9.33 6.63 9.88 6.42 10.27 6.55 10.97 6.61 11.52 6.73
45 8.78 6.32 9.33 6.68 9.87 6.47 10.27 6.60 10.96 6.66 11.51 6.78
50 8.78 6.37 9.32 6.73 9.87 6.51 10.26 6.65 10.96 6.71 11.50 6.83
55 8.77 6.42 9.31 6.78 9.86 6.56 10.25 6.70 10.95 6.76 11.49 6.88
60 8.76 6.46 9.31 6.83 9.85 6.61 10.24 6.75 10.94 6.81 11.48 6.93
65 8.76 6.51 9.30 6.88 9.84 6.66 10.24 6.80 10.93 6.85 11.47 6.98
70 8.75 6.56 9.29 6.92 9.84 6.70 10.23 6.85 10.92 6.90 11.47 7.03
75 8.54 6.45 9.08 6.82 9.62 6.61 10.01 6.75 10.71 6.82 11.25 6.96
80 8.33 6.34 8.87 6.71 9.41 6.51 9.80 6.66 10.49 6.73 11.03 6.87
85 8.12 6.22 8.66 6.60 9.20 6.41 9.59 6.56 10.28 6.64 10.82 6.79
90 7.91 6.10 8.45 6.48 8.99 6.31 9.37 6.46 10.06 6.55 10.60 6.70
95 7.68 6.04 8.22 6.43 8.75 6.26 9.00 6.32 9.83 6.52 10.36 6.67 100 7.50 5.88 8.03 6.26 8.57 6.11 8.88 6.22 9.64 6.37 10.17 6.53 105 7.31 5.72 7.84 6.10 8.38 5.96 8.77 6.12 9.45 6.23 9.99 6.39 110 7.12 5.52 7.66 5.90 8.19 5.78 8.58 5.94 9.26 6.06 9.80 6.22 115 6.94 5.36 7.47 5.74 8.01 5.63 8.39 5.79 9.08 5.91 9.61 6.08 118 6.82 5.32 7.36 5.70 7.89 5.60 8.28 5.76 8.96 5.89 9.50 6.06 122 6.79 5.30 7.32 5.69 7.86 5.59 8.24 5.76 8.93 5.89 9.46 6.06
68 / 57 73 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC
Indoor Air Temp. °F DB / °F WB
Standard Wall-Mounted
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
STD. WALL-MOUNTED | 53
Page 54
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Cooling Capacity Table
Table 23: Multi F Standard Wall-Mounted Indoor Units Cooling Capacity Table (continued).
Model No. /
Nominal Capacity
of Indoor Unit
(Btu/h)
LSN120HSV5
12,000
LMN159HVT
14,300
Multi F and Multi F MAX Indoor Unit Engineering Manual
TC = Total Capacity (kBtu/h).
SHC: Sensible Heat Capacity (kBtu/h).
Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal cooling 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). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently.
Outdoor Air
Temp.
(°F DB)
14 11.76 8.51 12.49 8.99 13.22 8.70 13.75 8.88 14.69 8.96 15.42 9.13
20 11.75 8.57 12.48 9.06 13.21 8.77 13.74 8.95 14.67 9.03 15.40 9.20
25 11.75 8.64 12.48 9.13 13.20 8.84 13.73 9.02 14.66 9.10 15.39 9.27
30 11.74 8.71 12.47 9.20 13.19 8.90 13.72 9.09 14.65 9.17 15.38 9.34
35 11.73 8.77 12.46 9.27 13.18 8.97 13.71 9.16 14.64 9.24 15.37 9.41
40 11.72 8.84 12.45 9.34 13.17 9.04 13.70 9.23 14.63 9.31 15.36 9.48
45 11.71 8.90 12.44 9.41 13.16 9.11 13.69 9.30 14.62 9.38 15.35 9.55
50 11.70 8.97 12.43 9.47 13.15 9.17 13.68 9.37 14.61 9.45 15.33 9.62
55 11.69 9.03 12.42 9.54 13.14 9.24 13.67 9.44 14.60 9.52 15.32 9.70
60 11.68 9.10 12.41 9.61 13.13 9.31 13.66 9.50 14.59 9.58 15.31 9.77
65 11.67 9.17 12.40 9.68 13.12 9.38 13.65 9.57 14.57 9.65 15.30 9.84
70 11.66 9.23 12.39 9.75 13.11 9.44 13.64 9.64 14.56 9.72 15.29 9.91
75 11.38 9.08 12.11 9.60 12.83 9.31 13.35 9.51 14.27 9.60 15.00 9.79
80 11.10 8.92 11.82 9.45 12.55 9.17 13.07 9.38 13.99 9.48 14.71 9.68
85 10.83 8.76 11.54 9.29 12.26 9.03 12.78 9.24 13.70 9.36 14.42 9.56
90 10.55 8.60 11.26 9.13 11.98 8.88 12.50 9.10 13.42 9.22 14.13 9.43
95 10.25 8.51 10.96 9.05 11.67 8.82 12.00 8.90 13.10 9.18 13.81 9.39
100 10.00 8.28 10.71 8.82 11.42 8.61 11.84 8.76 12.85 8.98 13.56 9.20 105 9.75 8.05 10.46 8.59 11.17 8.40 11.69 8.62 12.60 8.78 13.31 9.01
110 9.50 7.77 10.21 8.31 10.92 8.14 11.44 8.37 12.35 8.53 13.07 8.76 115 9.25 7.54 9.96 8.08 10.67 7.92 11.19 8.15 12.10 8.33 12.82 8.56 118 9.10 7.49 9.81 8.03 10.52 7.88 11.04 8.12 11.95 8.30 12.67 8.54
122 9.05 7.47 9.76 8.01 10.48 7.87 10.99 8.11 11.90 8.29 12.62 8.53
14 14.02 10.23 14.89 10.80 15.76 10.46 16.39 10.68 17.50 10.77 18.37 10.97
20 14.01 10.31 14.88 10.89 15.75 10.54 16.38 10.76 17.49 10.85 18.36 11.06
25 14.00 10.39 14.87 10.97 15.74 10.62 16.36 10.85 17.47 10.94 18.34 11.15
30 13.99 10.47 14.85 11.06 15.72 10.70 16.35 10.93 17.46 11.02 18.33 11.23
35 13.98 10.55 14.84 11.14 15.71 10.79 16.34 11.01 17.45 11. 11 18.32 11.32
40 13.96 10.62 14.83 11.22 15.70 10.87 16.33 11.10 17.43 11.19 18.30 11.40
45 13.95 10.70 14.82 11.31 15.69 10.95 16.31 11.18 17.42 11.27 18.29 11.49
50 13.94 10.78 14.81 11.39 15.68 11.03 16.30 11.26 17.41 11.36 18.27 11.57
55 13.93 10.86 14.80 11.47 15.66 11. 11 16.29 11.34 17.39 11.44 18.26 11.66
60 13.92 10.94 14.79 11.56 15.65 11.19 16.28 11.43 17.38 11.52 18.25 11.74
65 13.91 11.02 14.78 11.64 15.64 11.27 16.26 11.51 17.37 11.61 18.23 11.83
70 13.90 11.10 14.76 11.72 15.63 11.35 16.25 11.59 17.35 11.69 18.22 11.91
75 13.57 10.92 14.43 11.55 15.29 11.19 15.91 11.44 17.01 11.55 17.87 11.78
80 13.23 10.73 14.09 11.36 14.95 11.03 15.57 11.28 16.67 11.40 17.53 11.64
85 12.90 10.53 13.76 11.17 14.61 10.86 15.23 11. 11 16.33 11.25 17.18 11.49
90 12.57 10.33 13.42 10.98 14.28 10.68 14.90 10.94 15.99 11.09 16.84 11.34
95 12.21 10.23 13.06 10.88 13.91 10.60 14.30 10.70 15.61 11.03 16.46 11.29
100 11.91 9.95 12.76 10.60 13.61 10.35 14.11 10.53 15.31 10.79 16.16 11.06 105 11.61 9.68 12.46 10.33 13.32 10.09 13.93 10.37 15.02 10.56 15.87 10.83
110 11.32 9.35 12.17 10.00 13.02 9.78 13.63 10.06 14.72 10.26 15.57 10.53 115 11.02 9.07 11.87 9.71 12.72 9.52 13.33 9.80 14.42 10.01 15.27 10.29 118 10.84 9.00 11.69 9.66 12.54 9.48 13.16 9.76 14.24 9.98 15.09 10.26
122 10.78 8.98 11.63 9.64 12.48 9.46 13.10 9.74 14.18 9.97 15.03 10.25
68 / 57 73 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC
Indoor Air Temp. °F DB / °F WB
54 | STD. WALL-MOUNTED
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 55
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Cooling Capacity Table
Table 24: Multi F Standard Wall-Mounted Indoor Units Cooling Capacity Table (continued).
Model No. /
Nominal Capacity
of Indoor Unit
(Btu/h)
LSN180HSV5
18,000
LMN249HVT
24,000
TC = Total Capacity (kBtu/h).
SHC: Sensible Heat Capacity (kBtu/h).
Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal cooling 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). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently.
Outdoor Air
Temp.
(°F DB)
14 17.65 12.33 18.74 13.02 19.84 12.61 20.63 12.88 22.03 12.98 23.12 13.23 20 17.63 12.43 18.73 13.13 19.82 12.71 20.61 12.98 22.01 13.09 23.11 13.33 25 17.62 12.52 18.71 13.23 19.81 12.81 20.60 13.08 22.00 13.19 23.09 13.44 30 17.60 12.62 18.70 13.33 19.79 12.91 20.58 13.18 21.98 13.29 23.07 13.54 35 17.59 12.71 18.68 13.43 19.78 13.00 20.57 13.28 21.96 13.39 23.05 13.64 40 17.58 12.81 18.67 13.53 19.76 13.10 20.55 13.38 21.94 13.49 23.04 13.75 45 17.56 12.90 18.66 13.63 19.75 13.20 20.53 13.48 21.93 13.59 23.02 13.85 50 17.55 13.00 18.64 13.73 19.73 13.30 20.52 13.58 21.91 13.69 23.00 13.95 55 17.54 13.10 18.63 13.83 19.72 13.39 20.50 13.68 21.89 13.79 22.98 14.05 60 17.52 13.19 18.61 13.93 19.70 13.49 20.49 13.78 21.88 13.89 22.97 14.16 65 17.51 13.29 18.60 14.03 19.69 13.59 20.47 13.87 21.86 13.99 22.95 14.26 70 17.50 13.38 18.58 14.13 19.67 13.69 20.46 13.97 21.84 14.09 22.93 14.36 75 17.08 13.16 18.16 13.92 19.24 13.49 20.03 13.79 21.41 13.92 22.50 14.20 80 16.66 12.93 17.74 13.70 18.82 13.30 19.60 13.60 20.98 13.75 22.06 14.03 85 16.24 12.70 17.32 13.47 18.40 13.09 19.17 13.40 20.55 13.56 21.63 13.85 90 15.82 12.46 16.90 13.23 17.97 12.88 18.75 13.19 20.12 13.37 21.20 13.67
95 15.37 12.33 16.44 13.12 17.51 12.78 18.00 12.90 19.65 13.30 20.72 13.61 100 14.99 12.00 16.06 12.78 17.13 12.47 17.77 12.70 19.28 13.01 20.35 13.33 105 14.62 11.67 15.69 12.45 16.76 12.17 17.53 12.50 18.90 12.73 19.97 13.05 110 14.24 11.27 15.32 12.05 16.39 11.79 17.16 12.13 18.53 12.36 19.60 12.70 115 13.87 10.93 14.94 11.71 16.01 11.48 16.79 11.82 18.15 12.07 19.22 12.41 118 13.65 10.85 14.72 11.64 15.79 11.42 16.56 11.77 17.93 12.03 19.00 12.37 122 13.57 10.83 14.64 11.62 15.71 11.40 16.49 11.75 17.85 12.01 18.92 12.36
14 23.53 16.82 24.99 17.77 26.45 17.21 27.50 17.57 29.37 17.72 30.83 18.05
20 23.51 16.95 24.97 17.91 26.43 17.34 27.48 17.70 29.35 17.85 30.81 18.19
25 23.49 17.08 24.95 18.05 26.41 17.47 27.46 17.84 29.33 17.99 30.79 18.33
30 23.47 17.21 24.93 18.19 26.39 17.61 27.44 17.98 29.30 18.13 30.76 18.47
35 23.46 17.35 24.91 18.32 26.37 17.74 27.42 18.12 29.28 18.27 30.74 18.61
40 23.44 17.48 24.89 18.46 26.35 17.88 27.40 18.25 29.26 18.41 30.72 18.75
45 23.42 17.61 24.87 18.60 26.33 18.01 27.38 18.39 29.24 18.54 30.69 18.89
50 23.40 17.74 24.85 18.74 26.31 18.14 27.36 18.52 29.21 18.68 30.67 19.03
55 23.38 17.87 24.84 18.87 26.29 18.27 27.34 18.66 29.19 18.82 30.64 19.17
60 23.37 18.00 24.82 19.01 26.27 18.41 27.32 18.79 29.17 18.95 30.62 19.31
65 23.35 18.13 24.80 19.15 26.25 18.54 27.29 18.93 29.15 19.09 30.60 19.45
70 23.33 18.26 24.78 19.28 26.23 18.67 27.27 19.07 29.13 19.23 30.57 19.59
75 22.77 17.95 24.21 18.99 25.66 18.41 26.70 18.81 28.55 18.99 29.99 19.37
80 22.21 17.65 23.65 18.69 25.09 18.14 26.13 18.55 27.97 18.75 29.42 19.14
85 21.65 17.33 23.09 18.38 24.53 17.86 25.57 18.28 27.40 18.50 28.84 18.90
90 21.09 17.00 22.53 18.06 23.96 17.57 25.00 18.00 26.83 18.24 28.27 18.65
95 20.49 16.82 21.92 17.89 23.35 17.44 24.00 17.60 26.20 18.14 27.63 18.57 100 19.99 16.37 21.42 17.44 22.85 17.02 23.69 17.33 25.70 17.75 27.13 18.19 105 19.49 15.92 20.92 16.99 22.35 16.60 23.38 17.06 25.20 17.36 26.63 17.81 110 18.99 15.38 20.42 16.44 21.85 16.09 22.88 16.55 24.70 16.87 26.13 17.32 115 18.49 14.91 19.92 15.98 21.35 15.66 22.38 16.12 24.20 16.47 25.63 16.93 118 18.19 14.81 19.62 15.88 21.05 15.59 22.08 16.05 23.90 16.41 25.33 16.88 122 18.10 14.77 19.52 15.85 20.95 15.56 21.98 16.03 23.81 16.39 25.23 16.86
68 / 57 73 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC
Indoor Air Temp. °F DB / °F WB
Standard Wall-Mounted
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
STD. WALL-MOUNTED | 55
Page 56
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Heating Capacity Table
Table 25: Multi F Standard Wall-Mounted Indoor Units Heating Capacity Table.
Model No. /
Nominal Capacity of
Indoor Unit (Btu/h)
LMN079HVT
8,100
LSN090HSV5
10,900
LSN120HSV5
13,600
Multi F and Multi F MAX Indoor Unit Engineering Manual
TC = Total Capacity (kBtu/h). Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
Outdoor Air Temp. Indoor Air Temp. °F DB
°F DB °F WB
0 -0.4 4.17 4.11 4.07 4.05 3.99 3.82
5 4.5 4.70 4.64 4.60 4.58 4.52 4.34 10 9 5.22 5.17 5.13 5.11 5.05 4.87 17 15 5.93 5.87 5.83 5.81 5.75 5.56 20 19 6.19 6.13 6.09 6.08 6.02 5.81 25 23 6.63 6.57 6.53 6.52 6.46 6.22 30 28 7.01 6.96 6.92 6.90 6.84 6.63 35 32 7.40 7.34 7.30 7.28 7.22 7.04 40 36 7.74 7.68 7.64 7.62 7.56 7.39 45 41 8.08 8.02 7.98 7.96 7.90 7.73 47 43 8.22 8.16 8.12 8.10 8.04 7.87 50 46 8.35 8.29 8.25 8.23 8.17 7.98 55 51 8.57 8.51 8.47 8.45 8.39 8.16 60 56 8.57 8.51 8.47 8.45 8.39 8.20 63 59 8.57 8.51 8.47 8.45 8.39 8.22 68 64 8.57 8.51 8.47 8.45 8.39 8.25
0 -0.4 5.61 5.53 5.48 5.45 5.37 5.14
5 4.5 6.32 6.24 6.18 6.16 6.08 5.85 10 9 7.03 6.95 6.90 6.88 6.79 6.56 17 15 7.98 7.90 7.85 7.82 7.75 7.48 20 19 8.33 8.26 8.21 8.18 8.09 7.82 25 23 8.93 8.85 8.79 8.77 8.69 8.37 30 28 9.44 9.36 9.31 9.29 9.20 8.93 35 32 9.96 9.87 9.82 9.79 9.72 9.47 40 36 10.42 10.33 10.28 10.25 10.18 9.94 45 41 10.87 10.80 10.74 10.71 10.64 10.40 47 43 11.06 10.98 10.93 10.90 10.82 10.59 50 46 11.24 11.15 11.10 11.08 10.99 10.73 55 51 11.53 11.46 11.40 11.37 11.30 10.98 60 56 11.53 11.46 11.40 11.37 11.30 11.03 63 59 11.53 11.46 11.40 11.37 11.30 11.06 68 64 11.53 11.46 11.40 11.37 11.30 11.11
0 -0.4 7.00 6.90 6.83 6.80 6.70 6.50
5 4.5 7.89 7.78 7.71 7.69 7.59 7.40 10 9 8.78 8.67 8.60 8.58 8.48 8.31 17 15 9.95 9.86 9.79 9.76 9.67 9.47 20 19 10.40 10.30 10.23 10.20 10.10 9.90 25 23 11.14 11.03 10.96 10.95 10.85 10.60 30 28 11.78 11.67 11.60 11.59 11.49 11.30 35 32 12.42 12.31 12.24 12.21 12.13 11.99 40 36 13.00 12.89 12.82 12.79 12.70 12.58 45 41 13.56 13.46 13.39 13.36 13.28 13.16 47 43 13.80 13.70 13.63 13.60 13.50 13.40 50 46 14.02 13.91 13.84 13.82 13.72 13.59 55 51 14.39 14.29 14.22 14.19 14.10 13.90 60 56 14.39 14.29 14.22 14.19 14.10 13.96 63 59 14.39 14.29 14.22 14.19 14.10 14.00 68 64 14.39 14.29 14.22 14.19 14.10 14.06
61 64 68 70 72 75
TC TC TC TC TC TC
56 | STD. WALL-MOUNTED
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 57
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Heating Capacity Table
Table 26: Multi F Standard Wall-Mounted Indoor Units Heating Capacity Table.
Model No. /
Nominal Capacity of
Indoor Unit (Btu/h)
LMN159HVT
15,600
LSN180HSV5
21,600
LMN249HVT
25,600
TC = Total Capacity (kBtu/h). Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
Outdoor Air Temp. Indoor Air Temp. °F DB
°F DB °F WB
0 -0.4 8.03 7.91 7.84 7.80 7.69 7.35
5 4.5 9.05 8.93 8.86 8.82 8.71 8.37 10 9 10.06 9.95 9.87 9.83 9.72 9.38 17 15 11.42 11.31 11.23 11.19 11.08 10.71 20 19 10.03 11.81 11.73 11.70 11.59 11.19 25 23 12.77 12.66 12.58 12.55 12.43 11.98 30 28 13.51 13.40 13.32 13.28 13.17 12.77 35 32 14.25 14.13 14.06 14.02 13.91 13.57 40 36 14.90 14.79 14.71 14.67 14.56 14.23 45 41 15.56 15.45 15.37 15.34 15.22 14.88 47 43 15.83 15.71 15.64 15.60 15.49 15.15 50 46 16.08 15.97 15.89 15.86 15.74 15.36 55 51 16.51 16.39 16.32 16.28 16.17 15.71 60 56 16.51 16.39 16.32 16.28 16.17 15.78 63 59 16.51 16.39 16.32 16.28 16.17 15.83 68 64 16.51 16.39 16.32 16.28 16.17 15.89
0 -0.4 11.11 10.96 10.85 10.80 10.64 10.18
5 4.5 12.52 12.37 12.26 12.21 12.06 11.58 10 9 13.93 13.77 13.67 13.61 13.46 12.99 17 15 15.81 15.65 15.55 15.49 15.34 14.84 20 19 16.51 16.36 16.25 16.20 16.04 15.49 25 23 17.69 17.53 17.43 17.37 17.22 16.59 30 28 18.70 18.55 18.44 18.39 18.24 17.69 35 32 19.72 19.56 19.46 19.41 19.25 18.79 40 36 20.63 20.48 20.37 20.32 20.17 19.70 45 41 21.55 21.39 21.29 21.24 21.08 20.61 47 43 21.91 21.76 21.65 21.60 21.44 20.98 50 46 22.26 22.11 22.01 21.95 21.80 21.27 55 51 22.86 22.70 22.59 22.53 22.38 21.76 60 56 22.86 22.70 22.59 22.53 22.38 21.85 63 59 22.86 22.70 22.59 22.53 22.38 21.91 68 64 22.86 22.70 22.59 22.53 22.38 22.02
0 -0.4 13.17 12.99 12.87 12.80 12.61 12.06
5 4.5 14.84 14.66 14.54 14.47 14.29 13.73 10 9 16.51 16.33 16.20 16.14 15.96 15.40 17 15 18.74 18.56 18.42 18.37 18.18 17.59 20 19 19.57 19.39 19.27 19.20 19.01 18.37 25 23 20.96 20.77 20.65 20.59 20.40 19.66 30 28 22.17 21.98 21.85 21.80 21.61 20.96 35 32 23.37 23.19 23.07 23.00 22.82 22.26 40 36 24.45 24.27 24.15 24.08 23.90 23.34 45 41 25.53 25.35 25.23 25.16 24.98 24.42 47 43 25.97 25.79 25.67 25.60 25.41 24.86 50 46 26.39 26.21 26.08 26.02 25.83 25.20 55 51 27.09 26.90 26.78 26.71 26.53 25.79 60 56 27.09 26.90 26.78 26.71 26.53 25.90 63 59 27.09 26.90 26.78 26.71 26.53 25.97 68 64 27.09 26.90 26.78 26.71 26.53 26.08
61 64 68 70 72 75
TC TC TC TC TC TC
Standard Wall-Mounted
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
STD. WALL-MOUNTED | 57
Page 58
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
2.6 ft.
3.3 ft.
Microphone
Acoustic Data
Figure 63: Sound Pressure Level Measurement Location.
Measurement taken 2.6′ below the bottom of the unit and at a
distance of 3.3′ from face of unit.
• Measurements taken with no attenuation and units operating at full load normal operating condition.
• Sound level will vary depending on a range of factors such as construction (acoustic absorption coefficient) of particular area in which the equipment is installed.
• Sound power levels are measured in dB(A).
• Tested in anechoic chamber per ISO Standard 3745.
Table 27: Sound Pressure Levels (dB[A]).
Sound Pressure Levels (dB[A]) (Cooling and Heating)
Model No.
LMN079HVT 35 31 26
LSN090HSV5 36 32 27
LSN120HSV5 38 34 29
LMN159HVT 42 38 32
LSN180HSV5 44 38 34
LMN249HVT 46 41 36
High Fan Speed
Medium Fan
Speed
Low Fan Speed
Figure 64:LMN079HVT, LSN090HSV5, and LSN120HSV5 Sound Pressure Level Diagrams.
LMN079HVT
LSN090HSV5
Multi F and Multi F MAX Indoor Unit Engineering Manual
LSN120HSV5
58 | STD. WALL-MOUNTED
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Due to our policy of continuous product innovation, some specications may change without notication.
Page 59
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Figure 65:LMN159HVT, LSN180HSV5, and LMN249HVT Sound Pressure Level Diagrams.
Acoustic Data
LMN159HVT
LSN180HSV5
LMN249HVT
Standard Wall-Mounted
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
STD. WALL-MOUNTED | 59
Page 60
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Air Velocity and Temperature Distribution
Figure 66:LMN079HVT, LSN090HSV5, LSN120HSV5, LMN159HVT Air Velocity and Temperature Distribution Charts.
Figure 67:LSN180HSV5 Air Velocity and Temperature Distribution Charts.
Multi F and Multi F MAX Indoor Unit Engineering Manual
60 | STD. WALL-MOUNTED
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 61
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Figure 68:LMN249HVT Air Velocity and Temperature Distribution Charts.
Air Velocity and Temperature Distribution
Standard Wall-Mounted
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
STD. WALL-MOUNTED | 61
Page 62
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Refrigerant Flow Diagram
Figure 69:Multi F Standard Wall-Mounted Indoor Unit Refrigerant Flow Diagram.
Heating
Cooling
Evaporator Inlet Temperature
Thermistor for
Heat Exchanger
Cross Flow Fan
M
Thermistor for Evaporator
Outlet Temperature
Gas pipe connection port (flare connection)
Indoor Air Temperature
Thermistor for
Liquid pipe connection port (flare connection)
Table 28: Multi F Standard Wall-Mounted Indoor Unit Refrigerant Pipe Sizes.
Model No. Vapor (inch) Liquid (inch)
LMN079HVT
LSN090HSV5
Multi F and Multi F MAX Indoor Unit Engineering Manual
LSN120HSV5
LMN159HVT
LSN180HSV5
LMN249HVT
Table 30: Multi F LSNxxxHSV5 Standard Wall-Mounted Indoor Unit Thermistor Details.
Description (Based on Cooling Mode) PCB Connector
Indoor Air Temperature Thermistor
Evaporator Inlet Temperature Thermistor
Evaporator Middle Temperature Thermistor
Evaporator Outlet Temperature Thermistor
Water Level Sensor (Optional) CN-TH3
62 | STD. WALL-MOUNTED
Ø3/8
Ø1/4
Ø1/2
CN-TH1
CN-TH2
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Table 29: Multi F Standard Wall-Mounted Indoor Unit Refrigerant Pipe Connections.
Table 31: Multi F LMNxxxHVT Standard Wall-Mounted Indoor Unit Thermistor Details.
Evaporator Outlet Temperature Thermistor CN-TH2
Model No. Vapor (inch) Liquid (inch)
LMN079HVT
LSN090HSV5
LSN120HSV5
LMN159HVT
LSN180HSV5 Ø5/8 Ø3/8
LMN249HVT Ø1/2 Ø1/4
Description (Based on Cooling Mode) PCB Connector
Indoor Air Temperature Thermistor
Evaporator Inlet Temperature Thermistor
Water Level Sensor (Optional) CN-TH3
Ø3/8 Ø1/4
CN-TH1
Page 63
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Figure 70:Multi F Standard Wall-Mounted LSN090HSV5, LSN120HSV5, LSN180HSV5 Indoor Units Wiring Diagram.
Wiring Diagram
Standard Wall-Mounted
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
STD. WALL-MOUNTED | 63
Page 64
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Wiring Diagram
Figure 71: Multi F Standard Wall-Mounted LMN079HVT, LMN159HVT, LMN249HVT Indoor Unit Wiring Diagram.
Multi F and Multi F MAX Indoor Unit Engineering Manual
64 | STD. WALL-MOUNTED
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 65
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
7,000 ~ 15,000 Btu/h Indoor Units
WARNING
Factory Supplied Parts
Table 32: Parts Table.
Part Quantity Image
Installation Plate One (1)
Type “A” Screws Five (5)
Type “B” Screws
(M4 x 12L)
Two (2)
Factory Supplied Parts and Materials
18,000 and 24,000 Btu/h Indoor Units
Standard Wall-Mounted
Wireless
Controller with Holder
AKB74955602
Factory Supplied Materials
• Owner’s Manual
• Installation Manual
Installation work must be performed by trained personnel and in accordance with national wiring standards and all local or other applicable codes. Improper installation can result in re, electric shock, physical injury, or death.
Note:
Read all instructions before installing this product. Become familiar with the unit’s components and connections, and the order of installation. Incorrect installation can degrade or prevent proper operation.
One (1)
Required Tools
• Level
• Screwdriver
• Electric drill
• Hole core drill
• Flaring tool set
• Spanner (Half union)
• Thermometer
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
STD. WALL-MOUNTED | 65
Page 66
MULTI
F
MAX
MULTI
F
>4 inches
Recommended height >6-1/2 feet from floor
>4 inches
≥5 inches
Installation Plate
Frame Hooks
Type "A" Screws
Ø2-3/4 inches
Place a level on raised tab
STANDARD WALL-MOUNTED INDOOR UNITS
Installation and Best Layout Practices
Selecting the Best Location
Figure 72:Minimum Clearance Requirements.
Do’s
• Place the unit where air circulation will not be blocked.
• Place the unit where drainage can be obtained easily.
• Place the unit where noise prevention is taken into consideration.
• Ensure there is sufficient space from the ceiling and floor.
• Ensure there is sufficient maintenance space.
• Locate the indoor unit where it can be easily connected to the outdoor unit or branch distribution unit.
Don’ts
Do not install the unit near a heat or steam source, or where considerable amounts of oil,
iron powder, or flour are used.
Do not install the unit where sulfuric acid and flammable or corrosive gases are generated, vented into, or stored.
Do not install the unit near high-frequency generators.
Do not install the unit near a doorway.
The unit will be damaged, will malfunction, and / or will not operate as designed if installed in any of the conditions listed.
Indoor units (IDUs) must not be placed in an environment where the IDUs will be exposed to harmful volatile organic compounds (VOCs)
or in environments where there is improper air make up or supply or inadequate ventilation. If there are concerns about VOCs in the envi­ronment where the IDUs are installed, proper air make up or supply and/or adequate ventilation must be provided. Additionally, in buildings where IDUs will be exposed to VOCs, consider a third party factory-applied epoxy coating to the fan coils for each IDU where the entire coil
is dipped, not sprayed.
If the unit is installed near a body of water, the installation parts are at risk of corroding. Appropriate anti-corrosion methods must be taken for
the unit and all installation parts.
Installing in an Area Exposed to Unconditioned Air
In some installation applications, areas (floors, walls) in some rooms will be exposed to unconditioned air (room will be above or next to an unheated garage or storeroom). To
countermeasure:
• Verify that carpet is or will be installed (carpet will increase the temperature by three degrees).
• Add insulation between the floor joists.
• Install radiant heat or another type of heating system to the floor.
Figure 73:Installation Plate— Side View.
Mounting the Installation Plate
The mounting wall must be strong and solid enough to protect the unit from vibration.
• Mount the installation plate on the wall using the Type “A” screws. If mounting the unit on con­crete, consider using anchor bolts.
• Always mount the installation plate horizontally. Measure the wall and mark the centerline using thread and a level.
Figure 74:Installation Plate for LMN079HVT, LSN090HSV5, LSN120HSV5, and LMN159HVT Units.
Multi F and Multi F MAX Indoor Unit Engineering Manual
Place a level on raised tab
17-3/8 17-3/8
5
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Ø2-9/16
8-1/2
Left rear piping
If the unit is installed near a body of water, certain components are at risk of being corroded. Appropriate anti-corrosion methods must be taken for the
unit and all components.
66 | STD. WALL-MOUNTED
Unit Outline
Ø2-9/16
6-7/8
5-3/16 3-11/16
Figure 75:Installation Plate for LSN180HSV5 and LMN249HVT Units.
Left rear
Right rear piping
piping
2-23/32 inches
Unit Outline
4-1/8 inches
18-1/8 inches 22-7/16 inches
Installation Plate
Measuring Tape
Measuring Tape Hanger
Ø2-3/4 inches
Right rear piping
2-7/32 inches
8-5/32 inches
Page 67
MULTI
F
MAX
MULTI
F
Installation plate
Tubing Clamp
Right
Tubing Clamp
Down
Left
Back
Frame Cover
STANDARD WALL-MOUNTED INDOOR UNITS
Installation and Best Layout Practices
Preparing for Installation
Prepare the refrigerant piping and drain hose (indoor unit piping) for installation through the
wall: press on the top of the tubing clamp and slowly guide the piping / hose down (depending
on installation requirements, then to the left or right). Relock the tubing clamp after the piping / hose are released.
Note:
Do not bend the piping / drain hose from side to side; it will damage the components.
Hanging the Indoor Unit Frame
1. Attach the three (3) hooks on the top of the indoor unit to the top edge of the instal­lation plate. Verify the hooks are properly attached to the installation plate by gently shaking the indoor unit from side to side.
2. Unlock the tubing clamp from the indoor unit frame. For easier access between the bottom of the indoor unit and the wall, prop the clamp between the indoor unit frame and installation plate.
3. Remove the screw covers at the bottom of the indoor unit, unscrew the two (2) screws, remove the frame cover, remove the piping connection cover, and position the piping for installation (down, back, left, or right).
Figure 76:Preparing for Installation.
Standard Wall-Mounted
Figure 77:Locking the Indoor Unit onto the Installation Plate.
Figure 79:Removing the Frame Cover.
Figure 81:Piping Installed to the Left.
Figure 78:Accessing the Back of the Indoor Unit.
Figure 80:Exterior Back View of Indoor Unit.
Figure 82:Piping Installed to the Right.
Connecting pipe
Tape
Drain hose
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Tape
Connecting pipe
Drain hose
STD. WALL-MOUNTED | 67
Page 68
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Terminal block
Power wiring / communications cable
Wired Remote Controlle
r
Terminal (Optional)
Cable restraint
Installation and Best Layout Practices
Power Wiring / Communications Cable Guidelines
• Follow manufacturer’s circuit diagrams in the technical manuals.
• Confirm power source specifications.
• Confirm that the electrical capacity is sufficient.
• Starting current must be maintained ±10 percent of the rated current marked on the outdoor unit name plate.
• Confirm cable thickness specifications.
• It is required that a circuit breaker is installed, especially if conditions could become wet or moist.
• Include a disconnect in the power wiring system, add an air gap contact separation of at least 1/8 inch in each active (phase) conductor.
• Loose wiring will cause unit to malfunction, overheat, and catch fire, resulting in severe injury or death.
Figure 83: Connecting Power Wiring / Communications Cable.
Note:
Terminal screws will become loose during transport. Properly tighten the terminal connections during installation.
A voltage drop will cause the following problems:
Magnetic switch vibration, fuse breaks, or disturbance to the normal function of an overload protection device.
• Compressor will not receive the proper starting current.
Connect Power Wiring and Communications Cable
1. Insert the power wiring / communications cable from the outdoor
unit or branch distribution unit (Multi F MAX systems only) through the bottom of the indoor unit.
2. Connect each wire to its appropriate terminal on the indoor unit
control board. Verify that the color and terminal numbers from the outdoor unit or branch distribution unit (Multi F MAX systems only) wiring match the color and terminal numbers on the indoor unit.
3. Secure power wiring/communications cable with cable restraint.
Figure 84:Simplied View of Indoor Unit to Outdoor Unit / Branch Distribution Unit Terminal Connections—LMN079HVT, LSN090HSV5, LSN120HSV5 and LMN159HVT.
Outdoor Unit Terminal Block or
Multi F and Multi F MAX Indoor Unit Engineering Manual
GND
Indoor Unit Terminal Block
32(L2)1(L1)
BR
BL
GRN / YLW
RD
Branch Distribution Unit Terminal Block
(Multi F MAX Systems Only)
3 or S
GND
Figure 85:Simplied View of Indoor Unit to Outdoor Unit / Branch Distribution Unit Terminal Connections— LSN180HSV5 and LMN249HVT.
GND
Indoor Unit Terminal Block
1(L1 )2(L2)
BR
GRN / YLW
Outdoor Unit Terminal Block or
Branch Distribution Unit Terminal Block
(Multi F MAX Systems Only)
3
BL
RD
3 or S
GND
68 | STD. WALL-MOUNTED
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 69
MULTI
F
MAX
MULTI
F
STANDARD WALL-MOUNTED INDOOR UNITS
Installation and Best Layout Practices
Controller Options
Standard wall-mounted indoor units include a wireless controller (AKB74955602), but optional LG-supplied wired controllers are available.
Wireless Controller
Table 33: AKB74955602 Wireless Controller Functions.Figure 86:AKB74955602 Wireless Controller.
Screen Display
Standard Wall-Mounted
*
*
*
RESET
Buttons
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
STD. WALL-MOUNTED | 69
Page 70
MULTI
F
MAX
MULTI
F
4 to 5 feet
above the floor
NO
NO
NO
YES
Remote Controller
TEMP
Remote Controller
TEMP
Re
m
ot
e
C
o
n
t
r
ol
l
er
TEMP
STANDARD WALL-MOUNTED INDOOR UNITS
Indoor Unit Terminal Block
GRN / YLW
Indoor Unit Terminal Block
GRN / YLW
(Multi F MAX Systems Only)
To Wired Controller
Installation and Best Layout Practices
Wired Controller Connections
Figure 87:Wired Controller Connection on Indoor Unit Terminal Block—
LMN079HVT, LSN090HSV5, LSN120HSV5, and LMN159HVT Models.
GND
1(L1 )2(L2)
BR
BL
3
RD
To Outdoor Unit or Branch Distribution Unit
CN-REMO
To Wired Controller
Figure 88:Wired Controller Connection on Indoor Unit Terminal Block—
LSN180HSV5 and LMN249HVT Models.
GND
1(L1 )2(L2)
BR
To Outdoor Unit or Branch Distribution Unit
(Multi F MAX Systems Only)
Wired Controller Placement
Wired controllers include a sensor to detect room temperature. To maintain comfort
levels in the conditioned space, the wired controller must be installed in a location away from direct sunlight, high humidity, and where it could be directly exposed to cold air. Controller must be installed four (4) to five (5) feet above the floor where its LED display can be read easily, in an area with good air circulation, and where it can detect an aver­age room temperature.
Do not install the wired controller near or in:
• Drafts or dead spots behind doors and in corners
• Hot or cold air from ducts
• Radiant heat from the sun or appliances
• Concealed pipes and chimneys
• An area where temperatures are uncontrolled, such as an outside wall
CN-REMO
BL
3
RD
Figure 89:Proper Location for the Wired Controller.
Multi F and Multi F MAX Indoor Unit Engineering Manual
70 | STD. WALL-MOUNTED
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 71
MULTI
F
MAX
MULTI
F
Top
Wall Wall
Wall Wall
Installing the Controller
Removing the Controller
STANDARD WALL-MOUNTED INDOOR UNITS
Filter
Installation and Best Layout Practices
Hanging the Wired Controller
1. The controller wiring / cable can be installed in one of three direc-
tions: top, back, or on the right side. If top or right side installation
is desired, remove cable guide grooves on the controller, and then position wiring / cable on applicable side.
2. Choose and mark the area of installation. Use the provided parts
and screw the wall plate into place. Install the controller wall plate to fit the electrical box if one is present. Ensure that no gaps exist between the wall plate and the wall itself.
3. Arrange wiring / cables so as not to interfere with the controller
circuitry. Position the wired controller on the wall plate. Snap into place by pressing the bottom part of the wired controller onto the wall plate. Make sure that no gaps exist between the wired controller and the wall plate on all sides.
4. To remove wired controller from the wall plate, insert a screw-
driver into the two holes at the bottom. Twist screwdriver to release controller. Do not damage the controller components when removing.
Figure 91:Removing the Cable Guide Grooves.
Top
Back
Figure 92:Attaching the Wall Plate.
Right Side
Figure 93:Installing / Removing the Controller.
Right Side
Standard Wall-Mounted
Assigning the Thermistor for Temperature Detection
Each indoor unit includes a return air thermistor assigned to sense the temperature. If a wired controller is installed, there is a choice of sensing temperature with either the indoor unit return air thermistor or the thermistor in the wired controller. It is also an option to set both thermistors to sense temperature so that indoor unit bases its operation on the first thermistor to reach the designated temperature differen­tial. For applicable indoor units, an optional Remote Temperature Sensor can be used in lieu of the return air thermistor—either alone or in conjunction with a wired controller thermistor as previously described.
Finalizing Indoor Unit Installation
1. Move the tubing clamp to its original position.
2. Ensure the three (3) hooks are properly attached to the installa-
tion plate by gently shaking the indoor unit from side to side.
3. Press the bottom left and right sides of the indoor unit against the
installation plate until the hooks click firmly into their slots.
4. Using two (2) Type “C” screws, secure the bottom of the indoor
unit to the installation plate.
5. Remove the two (2) tabs from the filter.
6. Replace the frame cover.
Figure 90:Attach Bottom of Indoor Unit to Installation Plate.
Type 'C' screws
Figure 94:Removing the Filter Tabs.
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
STD. WALL-MOUNTED | 71
Page 72
LOW WALL CONSOLE
INDOOR UNIT DATA
“Mechanical Specifications” on page 73
“General Data / Specifications” on page 74
“Dimensions” on page 75
“Cooling Capacity Table” on page 76
“Heating Capacity Table” on page 78
“Acoustic Data” on page 79
“Air Velocity and Temperature Distribution” on page 81
“Refrigerant Flow Diagram” on page 82
“Wiring Diagram” on page 83
“Factory Supplied Parts and Materials” on page 84
“Installation and Best Layout Practices” on page 85
Page 73
MULTI
F
MAX
MULTI
F
LOW WALL CONSOLE INDOOR UNITS
Mechanical Specications and Features
Low Wall Console Indoor Units
General
All LG indoor units are factory assembled, wired, piped, and provided
with a control circuit board, fan, and motor. Low Wall Console units
have a sound rating no higher than 44 dB(A) as tested per KSA0701 ISO Low 3745.
Coil
Indoor unit coils are comprised of a minimum of two rows of aluminum fins mechanically bonded to copper tubing. The coils are pressure tested at the factory. Each unit is provided with a factory installed condensate drain pan below the coil.
Refrigerant System
The system is designed for use with R410A refrigerant. The refrig­eration circuit is pressure-tested at the factory and shipped with a holding charge of helium gas. Refrigerant pipe connections are 45° flare. All refrigerant lines from the outdoor unit to the indoor units must be field insulated.
Electrical
The indoor units require 208–230Vac/60Hz/1Φ power with voltage
variance of no more than ±10%.
Casing
The units mount on a vertical surface. They are shipped with a sepa­rate back plate that secures the unit to the wall, protruding no more than nine (9) inches. Refrigerant piping can be installed in one (1) of four (4) different directions.
Finish
The Low Wall Console unit has a case with a beige-white panel. It
is manufactured of heavy-duty acrylonitrile butadiene styrene (ABS) and high impact polystyrene (HIPS) plastic.
Fan Assembly and Control
The unit has a single, direct-drive, turbo fan made of high strength ABS plastic. The fan motor is brushless digitally controlled (BLDC) with permanently lubricated and sealed ball bearings. The fan / motor assembly is mounted on vibration attenuating rubber grommets. Fan speed is controlled using a microprocessor-based direct digitally
controlled algorithm that provides pre-programmed, eld-selectable xed or auto fan speeds in the Heating and Cooling modes. For Low Wall Console units, the indoor fan has Low, Med, High, Jet Cool, and
Auto settings for Cooling mode; and has Low, Med, High, Jet Heat, and Auto settings for Heating mode. The Auto setting adjusts the fan speed based on the difference between the controller setpoint and space temperature. Also, the separate Chaos setting provides a
simultaneous and random change in fan speed and ow direction at
the discharge, simulating a natural outdoor breeze.
Air Filter
The return air inlet has a factory­supplied primary removable, washable filter. The filter is ac­cessed from the front of the unit without the use of tools.
Figure 95: Multi F Low Wall Console Indoor Unit.
Airflow Guide Vanes
A factory-installed motorized guide vane controls the direction of airflow up and down for uniform air distribution. Side to side control is manual.
Microprocessor Control
The indoor unit has an integrated control panel to communicate with the outdoor unit. All unit operation parameters are stored in non-vola­tile memory resident on the unit microprocessor. The microprocessor controls space temperature through using the value provided by the temperature sensors within the indoor unit. The microprocessor con­trol will activate indoor unit operation when the indoor room tempera­ture falls below or rises above a setpoint temperature, at which point, a signal is sent to the outdoor unit to begin the appropriate mode. The microprocessor also provides self-diagnostics and auto restart func-
tions. A eld-supplied four-wire power / communications cable must
be installed to connect the indoor unit(s) to the outdoor unit.
Controls
The indoor unit casing has an integral infrared sensor to communi­cate with the supplied LG wireless handheld remote controller. An optional LG supplied wired controller is available as an additional accessory. Communication between the indoor units and the outdoor
unit is accomplished through 14 AWG, four-core, stranded and
shielded power / communication cable. The indoor unit has an option for wi-fi and can be controlled with LG’s SmartThinQ app on a smart device. A field-supplied wi-fi network and smart device are required. The SmartThinQ app is free and is available for Android and iOS smart devices.
Condensate
The unit is designed for gravity draining of condensate and includes a flexible drain hose capable of installation in one of two directions. The unit also includes a connection that is compatible with the Aqua­Guard® AG-9300-LG condensate sensor.
Low Wall Console
Features
• Inverter (Variable speed fan)
• Comfort Air
• Jet cool/Jet Heat
• Group control
• Auto operation
• Auto restart operation
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
• Optional wi-fi
• Self-diagnostic function
Wireless LCD remote control included
STD. WALL-MOUNTED | 73
Page 74
MULTI
F
MAX
MULTI
F
LOW WALL CONSOLE INDOOR UNITS
General Data / Specications
Table 34: Multi F Low Wall Console Indoor Unit General Data.
Model Name LQN090HV4 LQN120HV4 LMQN150HV
Nominal Cooling Capacity (Btu/h)
Nominal Heating Capacity (Btu/h)
1
1
Operating Range
Cooling (°F WB)
Heating (°F DB)
Fan
Type
Motor Output (W) x Qty.
Motor/Drive
Airflow Rate CFM (Max/H/M/L)
Unit Data
Refrigerant Type
2
Refrigerant Control
Power Supply V, Ø, Hz3
Rated Amps (A)
Sound Pressure Level dB(A) (H/M/L)4
Dimensions (W x H x D, in.) Net Unit Weight (lbs.) Shipping Weight (lbs.) Power Wiring / Communications Cable (No. x AWG)5
Heat Exchanger (Row x Column x FPI ) x Qty.
Pipe Size
Liquid (in.)
Vapor (in.)
Connection Size
Liquid (in.)
Vapor (in.)
Drain O.D. / I.D. (in.)
Multi F and Multi F MAX Indoor Unit Engineering Manual
1
Nominal capacity is rated 0 ft. above sea level with corresponding refrigerant piping length in accordance with low length of each outdoor unit and a 0 ft. level difference between outdoor and indoor units. All capacities are net with a combination ratio between 95 – 105%.
Nominal cooling 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). Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF
wet bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
2
This unit comes with a dry helium charge.
9,000 12,000 15,710
10,500 13,650 17,070
Brushless Digitally Controlled / Direct
304 / 300 / 237 / 177 346 / 318 / 244 / 184 388 / 357 / 304 / 254
38/32/27 39/32/27 44/39/35
1/4 1/4 1/4
3/8 3/8 1/2
1/4 1/4 1/4
3/8 3/8 1/2
3
Acceptable operating voltage: 187V-253V.
4
Sound pressure levels are tested in an anechoic chamber under ISO Low 3745 and are the same in
both cooling and heating mode. These values can increase due to ambient conditions during operation.
5
All power wiring / communications cable to the IDUs be minimum 14 AWG, 4-conductor, stranded,
shielded or unshielded (if shielded, must be grounded to chassis at ODU only) and must comply with applicable local and national codes.
57-77
59-81
Turbo
48 x 1
R410A
EEV
208-230, 1, 60
0.7
27-9/16 x 23-5/8 x 8-9/32
35.7
41.7
4 x 14
(2 x 19 x 19 ) x 1
27/32, 5/8
74 | STD. WALL-MOUNTED
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 75
MULTI
F
MAX
MULTI
F
LOW WALL CONSOLE INDOOR UNITS
Figure 96: LQN090HV4, LQN120HV4, and LMQN150HV Dimensions.
Dimensions
23 (584)
4-29/32 (125)
3-5/32 (80)
3-17/32 (90)
23/32 (18)23/32 (18)
3-1/4 (82.5)
3-3/4 (95)
1-25/32 (45)
8-9/32 (210)
26-7/32 (666)
27-9/16 (700)
Low Wall Console
23-5/8 (600)
25-5/32 (639)
5-1/2 (140)6-11/16 (170)
1-1/32 (26.5)
6-5/16 (160)
1-15/32 (37)
1-15/32 (37)
3-15/16 (100)
3-5/32 (80)
25-15/32 (647)
7-3/32 (180)
5-1/2 (140)6-11/16 (170)
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
2-11/16 (68.5)
1-15/32 (37)
5-1/2 (140)
4-23/32 (120)
5-29/32 (150)
10-1/4 (260.5)
8-21/32 (220)
4-1/16 (103)
2-1/32 (51)
3-7/16 (87)
STD. WALL-MOUNTED | 75
Page 76
MULTI
F
MAX
MULTI
F
LOW WALL CONSOLE INDOOR UNITS
Cooling Capacity Table
Table 35: Multi F Low Wall Console Indoor Units Cooling Capacity Table.
Model No. /
Nominal Capacity
of Indoor Unit
(Btu/h)
LQN090HV4
9,000
LQN120HV4
12,000
Multi F and Multi F MAX Indoor Unit Engineering Manual
TC = Total Capacity (kBtu/h).
SHC: Sensible Heat Capacity (kBtu/h).
Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with low length of each outdoor unit.
Nominal cooling 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). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently.
Outdoor Air
Temp.
(°F DB)
14 8.82 6.19 9.37 6.54 9.92 6.33 10.31 6.47 11.01 6.52 11.56 6.65 20 8.82 6.24 9.36 6.59 9.91 6.38 10.31 6.52 11.01 6.57 11.55 6.70 25 8.81 6.29 9.36 6.64 9.90 6.43 10.30 6.57 11.00 6.62 11.54 6.75 30 8.80 6.34 9.35 6.70 9.90 6.48 10.29 6.62 10.99 6.68 11.54 6.80 35 8.80 6.39 9.34 6.75 9.89 6.53 10.28 6.67 10.98 6.73 11.53 6.85 40 8.79 6.43 9.33 6.80 9.88 6.58 10.27 6.72 10.97 6.78 11.52 6.90 45 8.78 6.48 9.33 6.85 9.87 6.63 10.27 6.77 10.96 6.83 11.51 6.96 50 8.78 6.53 9.32 6.90 9.87 6.68 10.26 6.82 10.96 6.88 11.50 7.01 55 8.77 6.58 9.31 6.95 9.86 6.73 10.25 6.87 10.95 6.93 11.49 7.06 60 8.76 6.63 9.31 7.00 9.85 6.78 10.24 6.92 10.94 6.98 11.48 7.11 65 8.76 6.67 9.30 7.05 9.84 6.83 10.24 6.97 10.93 7.03 11.47 7.16 70 8.75 6.72 9.29 7.10 9.84 6.87 10.23 7.02 10.92 7.08 11.47 7.21 75 8.54 6.61 9.08 6.99 9.62 6.78 10.01 6.93 10.71 6.99 11.25 7.13 80 8.33 6.50 8.87 6.88 9.41 6.68 9.80 6.83 10.49 6.90 11.03 7.05 85 8.12 6.38 8.66 6.77 9.20 6.58 9.59 6.73 10.28 6.81 10.82 6.96 90 7.91 6.26 8.45 6.65 8.99 6.47 9.37 6.63 10.06 6.72 10.60 6.87
95 7.68 6.19 8.22 6.59 8.75 6.42 9.00 6.48 9.83 6.68 10.36 6.84 100 7.50 6.03 8.03 6.42 8.57 6.27 8.88 6.38 9.64 6.54 10.17 6.70 105 7.31 5.86 7.84 6.26 8.38 6.11 8.77 6.28 9.45 6.39 9.99 6.56 110 7.12 5.66 7.66 6.05 8.19 5.92 8.58 6.09 9.26 6.21 9.80 6.38 115 6.94 5.49 7.47 5.88 8.01 5.77 8.39 5.94 9.08 6.06 9.61 6.23 118 6.82 5.45 7.36 5.85 7.89 5.74 8.28 5.91 8.96 6.04 9.50 6.22 122 6.79 5.44 7.32 5.84 7.86 5.73 8.24 5.90 8.93 6.04 9.46 6.21
14 11.76 8.37 12.49 8.84 13.22 8.56 13.75 8.74 14.69 8.82 15.42 8.98
20 11.75 8.44 12.48 8.91 13.21 8.63 13.74 8.81 14.67 8.89 15.40 9.05
25 11.75 8.50 12.48 8.98 13.20 8.70 13.73 8.88 14.66 8.96 15.39 9.12
30 11.74 8.57 12.47 9.05 13.19 8.76 13.72 8.95 14.65 9.02 15.38 9.19
35 11.73 8.63 12.46 9.12 13.18 8.83 13.71 9.02 14.64 9.09 15.37 9.26
40 11.72 8.70 12.45 9.19 13.17 8.90 13.70 9.08 14.63 9.16 15.36 9.33
45 11.71 8.76 12.44 9.26 13.16 8.96 13.69 9.15 14.62 9.23 15.35 9.40
50 11.70 8.83 12.43 9.33 13.15 9.03 13.68 9.22 14.61 9.30 15.33 9.47
55 11.69 8.89 12.42 9.39 13.14 9.10 13.67 9.29 14.60 9.37 15.32 9.54
60 11.68 8.96 12.41 9.46 13.13 9.16 13.66 9.35 14.59 9.43 15.31 9.61
65 11.67 9.02 12.40 9.53 13.12 9.23 13.65 9.42 14.57 9.50 15.30 9.68
70 11.66 9.09 12.39 9.60 13.11 9.29 13.64 9.49 14.56 9.57 15.29 9.75
75 11.38 8.94 12.11 9.45 12.83 9.16 13.35 9.36 14.27 9.45 15.00 9.64
80 11.10 8.78 11.82 9.30 12.55 9.03 13.07 9.23 13.99 9.33 14.71 9.53
85 10.83 8.62 11.54 9.15 12.26 8.89 12.78 9.10 13.70 9.21 14.42 9.41
90 10.55 8.46 11.26 8.99 11.98 8.74 12.50 8.96 13.42 9.08 14.13 9.28
95 10.25 8.37 10.96 8.91 11.67 8.68 12.00 8.76 13.10 9.03 13.81 9.24 100 10.00 8.15 10.71 8.68 11.42 8.47 11.84 8.62 12.85 8.84 13.56 9.05 105 9.75 7.92 10.46 8.46 11.17 8.26 11.69 8.49 12.60 8.64 13.31 8.86 110 9.50 7.65 10.21 8.18 10.92 8.01 11.44 8.24 12.35 8.40 13.07 8.62 115 9.25 7.42 9.96 7.95 10.67 7.80 11.19 8.03 12.10 8.20 12.82 8.42 118 9.10 7.37 9.81 7.91 10.52 7.76 11.04 7.99 11.95 8.17 12.67 8.40 122 9.05 7.35 9.76 7.89 10.48 7.74 10.99 7.98 11.90 8.16 12.62 8.39
68 / 57 73 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC
Indoor Air Temp. °F DB / °F WB
76 | STD. WALL-MOUNTED
Due to our policy of continuous product innovation, some specications may change without notication.
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Page 77
MULTI
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MULTI
F
LOW WALL CONSOLE INDOOR UNITS
Table 36: Multi F Low Wall Console Indoor Units Cooling Capacity Table (continued).
Model No. /
Nominal Capacity
of Indoor Unit
(Btu/h)
LMQN150HV
15,710
Outdoor Air
Temp.
(°F DB)
14 15.40 11.41 16.36 12.05 17.31 11.67 18.00 11.92 19.23 12.02 20.18 12.25
20 15.39 11.50 16.34 12.15 17.30 11.76 17.99 12.01 19.21 12.11 20.17 12.34
25 15.38 11.59 16.33 12.24 17.29 11.85 17.98 12.10 19.20 12.21 20.15 12.44
30 15.37 11.68 16.32 12.34 17.27 11.94 17.96 12.20 19.18 12.30 20.14 12.53
35 15.35 11.77 16.31 12.43 17.26 12.04 17.95 12.29 19.17 12.39 20.12 12.63
40 15.34 11.86 16.29 12.52 17.25 12.13 17.94 12.38 19.15 12.49 20.11 12.72
45 15.33 11.94 16.28 12.62 17.23 12.22 17.92 12.47 19.14 12.58 20.09 12.82
50 15.32 12.03 16.27 12.71 17.22 12.31 17.91 12.57 19.12 12.67 20.07 12.91
55 15.31 12.12 16.26 12.80 17.21 12.40 17.89 12.66 19.11 12.77 20.06 13.01
60 15.29 12.21 16.24 12.90 17.19 12.49 17.88 12.75 19.09 12.86 20.04 13.10
65 15.28 12.30 16.23 12.99 17.18 12.58 17.87 12.84 19.08 12.95 20.03 13.20
70 15.27 12.38 16.22 13.08 17.17 12.67 17.85 12.93 19.06 13.04 20.01 13.29
75 14.90 12.18 15.85 12.88 16.80 12.49 17.48 12.76 18.69 12.88 19.63 13.14
80 14.54 11.97 15.48 12.68 16.42 12.31 17.11 12.59 18.31 12.72 19.25 12.99
85 14.17 11.75 15.11 12.47 16.05 12.11 16.73 12.40 17.94 12.55 18.88 12.82
90 13.81 11.53 14.75 12.25 15.69 11.92 16.36 12.21 17.56 12.37 18.50 12.65
95 13.41 11.41 14.35 12.14 15.28 11.83 15.71 11.94 17.15 12.31 18.08 12.60
100 13.09 11.10 14.02 11.83 14.95 11.55 15.51 11.75 16.82 12.04 17.76 12.34 105 12.76 10.80 13.69 11.53 14.63 11.26 15.30 11.57 16.50 11.78 17.43 12.08
110 12.43 10.43 13.37 11.15 14.30 10.92 14.98 11.22 16.17 11.44 17.10 11.75 115 12.11 10.12 13.04 10.84 13.97 10.63 14.65 10.94 15.84 11.17 16.78 11.48 118 11.91 10.04 12.84 10.77 13.78 10.57 14.45 10.89 15.65 11.13 16.58 11.45
122 11.84 10.02 12.78 10.75 13.71 10.55 14.39 10.87 15.58 11.12 16.52 11.44
68 / 57 73 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC
Indoor Air Temp. °F DB / °F WB
Cooling Capacity Table
Low Wall Console
TC = Total Capacity (kBtu/h).
SHC: Sensible Heat Capacity (kBtu/h).
Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with low length of each outdoor unit.
Nominal cooling 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). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently.
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
STD. WALL-MOUNTED | 77
Page 78
MULTI
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MAX
MULTI
F
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Heating Capacity Table
Table 37: Multi F Low Wall Console Indoor Units Heating Capacity Table.
Model No. /
Nominal Capacity of
Indoor Unit (Btu/h)
LQN090HV4
9,000
LQN120HV4
12,000
LMQN150HV
15,710
Multi F and Multi F MAX Indoor Unit Engineering Manual
TC = Total Capacity (kBtu/h). Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with low length of each outdoor unit. Nominal
heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
Outdoor Air Temp. Indoor Air Temp. °F DB
°F DB °F WB
0 -0.4 5.40 5.33 5.28 5.25 5.17 4.95
5 4.5 6.09 6.01 5.96 5.93 5.86 5.63 10 9 6.77 6.70 6.64 6.62 6.54 6.32 17 15 7.68 7.61 7.56 7.53 7.46 7.21 20 19 8.03 7.95 7.90 7.88 7.80 7.53 25 23 8.60 8.52 8.47 8.45 8.37 8.07 30 28 9.09 9.02 8.97 8.94 8.86 8.60 35 32 9.59 9.51 9.46 9.43 9.36 9.13 40 36 10.03 9.95 9.90 9.88 9.80 9.57 45 41 10.47 10.40 10.35 10.32 10.25 10.02 47 43 10.65 10.58 10.53 10.50 10.42 10.20 50 46 10.82 10.75 10.70 10.67 10.60 10.34 55 51 11. 11 11.03 10.98 10.96 10.88 10.58 60 56 11. 11 11.03 10.98 10.96 10.88 10.62 63 59 11. 11 11.03 10.98 10.96 10.88 10.65 68 64 11. 11 11.03 10.98 10.96 10.88 10.70
0 -0.4 7.02 6.92 6.86 6.83 6.73 6.43
5 4.5 7.91 7.81 7.75 7.72 7.62 7.32 10 9 8.80 8.70 8.64 8.61 8.51 8.21 17 15 9.99 9.89 9.83 9.79 9.69 9.38 20 19 10.44 10.34 10.27 10.24 10.14 9.79 25 23 11.18 11.08 11.01 10.98 10.88 10.48 30 28 11.82 11.72 11.66 11.62 11.52 11.18 35 32 12.46 12.36 12.30 12.27 12.17 11.87 40 36 13.04 12.94 12.88 12.84 12.74 12.45 45 41 13.62 13.52 13.45 13.42 13.32 13.02 47 43 13.85 13.75 13.68 13.65 13.55 13.25 50 46 14.07 13.97 13.91 13.87 13.77 13.44 55 51 14.44 14.34 14.28 14.24 14.14 13.75 60 56 14.44 14.34 14.28 14.24 14.14 13.81 63 59 14.44 14.34 14.28 14.24 14.14 13.85 68 64 14.44 14.34 14.28 14.24 14.14 13.91
0 -0.4 8.78 8.66 8.58 8.54 8.41 8.04
5 4.5 9.90 9.77 9.69 9.65 9.52 9.15 10 9 11.01 10.89 10.80 10.76 10.64 10.27 17 15 12.49 12.37 12.29 12.25 12.12 11.73 20 19 13.05 12.93 12.84 12.80 12.68 12.25 25 23 13.98 13.85 13.77 13.73 13.61 13.11 30 28 14.78 14.66 14.58 14.53 14.41 13.98 35 32 15.59 15.46 15.38 15.34 15.21 14.84 40 36 16.31 16.18 16.10 16.06 15.94 15.57 45 41 17.03 16.91 16.82 16.78 16.66 16.29 47 43 17.32 17.19 17.11 17.07 16.95 16.58 50 46 17.60 17.47 17.39 17.35 17.22 16.81 55 51 18.06 17.94 17.85 17.81 17.69 17.19 60 56 18.06 17.94 17.85 17.81 17.69 17.27 63 59 18.06 17.94 17.85 17.81 17.69 17.32 68 64 18.06 17.94 17.85 17.81 17.69 17.39
61 64 68 70 72 75
TC TC TC TC TC TC
78 | STD. WALL-MOUNTED
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 79
MULTI
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MAX
MULTI
F
LOW WALL CONSOLE INDOOR UNITS
2.6 ft.
3.3 ft.
Microphone
Acoustic Data
Figure 97: Sound Pressure Level Measurement Location.
Figure 98:LQN090HV4 and LQN120HV4 Sound Pressure Level Diagrams.
Measurement taken 2.6′ below the bottom of the unit and at a distance of 3.3′ from face of unit.
• Measurements taken with no attenuation and units operating at full load normal operating condition.
• Sound level will vary depending on a range of factors such as construction (acoustic absorption coefficient) of particular area in which the equipment is installed.
• Sound power levels are measured in dB(A).
• Tested in anechoic chamber per ISO Low 3745.
Table 38: Sound Pressure Levels (dB[A]).
Sound Pressure Levels (dB[A]) (Cooling and Heating)
Model No.
High Fan Speed
Medium Fan
Speed
Low Fan Speed
LQN090HV4 38 32 27
LQN120HV4 39 32 27
LMQN150HV 44 39 35
Low Wall Console
LQN090HV4 LQN120HV4
80
75
70
65
60
55
50
Octave Band Sound Pressure Level (0dB = 20μPa )
45
40
35
30
25
20
15
10
Approximate Hearing Threshold
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequency (Hz)
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
80
75
70
65
60
55
50
Octave Band Sound Pressure Level (0dB = 20μPa )
45
40
35
30
25
20
Approximate Hearing Threshold
15
10
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequency (Hz)
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Due to our policy of continuous product innovation, some specications may change without notication.
STD. WALL-MOUNTED | 79
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MULTI
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MAX
MULTI
F
LOW WALL CONSOLE INDOOR UNITS
Acoustic Data
Figure 99:LMQN150HV Sound Pressure Level Diagram.
LMQN150HV
80
75
70
65
60
55
50
Octave Band Sound Pressure Level (0dB = 20μPa )
45
40
35
30
25
20
Approximate Hearing Threshold
15
10
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequency (Hz)
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
Multi F and Multi F MAX Indoor Unit Engineering Manual
80 | STD. WALL-MOUNTED
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 81
MULTI
F
MAX
MULTI
F
LOW WALL CONSOLE INDOOR UNITS
Air Velocity and Temperature Distribution
Figure 100:LQN090HV4 and LQN120HV4 Air Velocity and Temperature Distribution Charts.
Cooling
Discharge angle: 40°
Air velocity [ft/s]
Discharge angle: 50°
Air velocity [ft/s]
Heating
0 ft
0
Temperature [° ]
0
0
Figure 101:LMQN150HV Air Velocity and Temperature Distribution Charts.
Cooling
Discharge angle: 40°
Air velocity [ft/s]
Temperature [° ]
Discharge angle: 50°
Air velocity [ft/s]
1.6
3.3
1.6
3.3
9.8
6.6
6.6
0 ft
0 ft
Low Wall Console
Heating
0
0
1.6
Temperature [°F]
73.4
4.9
3.3
6.6
8.2
1.6
1.6
66.2
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
6.6
62.6
64.4
64.4
62.6
3.3 6.6 9.8 13.1 16.4
Due to our policy of continuous product innovation, some specications may change without notication.
0
0
8.9
6.6
66.2
73.4
3.3
60.8
0 ft
0 ft
Temperature [°F]
82.4
0ft
0
8.9
86.0
89.6
86.0
89.6
3.3 6.6 9.8 13.1 16.4
6.6
93.2
3.3
89.6
0 ft
0 ft
STD. WALL-MOUNTED | 81
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MULTI
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MAX
MULTI
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LOW WALL CONSOLE INDOOR UNITS
Refrigerant Flow Diagram
Figure 102:Multi F Low Wall Console Indoor Unit Refrigerant Flow Diagram.
Heat exchanger
Heating
Cooling
Turbo fan
M
Thermistor for Evaporator inlet temperature
Description PCB Connector
Thermistor for suction air temperature CN-ROOM Thermistor for evaporator inlet temperature CN-PIPE / IN Thermistor for evaporator outlet temperature CN-PIPE / OUT
Thermistor for Evaporator outlet temperature
Gas pipe connection port
(flare connection)
Thermistor for suction air temperature
Liquid pipe connection port (flare connection)
Refrigerant pipe connection port diameters
Model
LQN090HV4 LQN120HV4
Multi F and Multi F MAX Indoor Unit Engineering Manual
Refrigerant pipe connection pipe sizes
82 | STD. WALL-MOUNTED
LMQN150HV
Model
LQN090HV4 LQN120HV4
LMQN150HV
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Vapor (inch) Liquid (inch)
Ø3/8 Ø1/4
Ø1/2 Ø1/4
Vapor (inch) Liquid (inch)
Ø3/8 Ø1/4
Ø1/2 Ø1/4
Page 83
MULTI
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MAX
MULTI
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LOW WALL CONSOLE INDOOR UNITS
Figure 103:Multi F Low Wall Console LQN090HV4, LQN120HV4, and LMQN150HV Indoor Units Wiring Diagram.
Wiring Diagram
Low Wall Console
Due to our policy of continuous product innovation, some specications may change without notication.
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STD. WALL-MOUNTED | 83
Page 84
MULTI
F
MAX
MULTI
F
LOW WALL CONSOLE INDOOR UNITS
WARNING
Factory Supplied Parts and Materials
Factory Supplied Parts
Table 39: Parts Table.
Part Quantity Image
Installation Plate One (1)
Type “A” Screws Five (5)
Type “B” Screws
(M4 x 12L)
Wireless
Controller with Holder
AKB75735410
Factory Supplied Materials
• Owner’s Manual
• Installation Manual
Two (2)
One (1)
Required Tools
• Level
• Screwdriver
• Electric drill
• Hole core drill
• Flaring tool set
• Spanner (Half union)
• Thermometer
Multi F and Multi F MAX Indoor Unit Engineering Manual
Installation work must be performed by trained personnel and in accordance with national wiring lows and all local or other applicable codes. Im­proper installation can result in re, electric shock, physical injury, or death.
Note:
Read all instructions before installing this product. Become familiar with the unit’s components and connections, and the order of installation. Incorrect installation can degrade or prevent proper operation.
84 | STD. WALL-MOUNTED
Due to our policy of continuous product innovation, some specications may change without notication.
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Page 85
MULTI
F
MAX
MULTI
F
LOW WALL CONSOLE INDOOR UNITS
Installation and Best Layout Practices
Selecting the Best Location
Figure 104:Minimum Clearance Requirements.
Do’s
• Place the unit where air circulation will not be blocked.
• Place the unit where drainage can be obtained easily.
• Place the unit where noise prevention is taken into consideration.
• Ensure there is sufficient space from the ceiling and floor.
More than 11-13/16 (300)
• Ensure there is sufficient maintenance space.
• Locate the indoor unit where it can be easily connected to the outdoor unit or branch distribution unit.
Don’ts
Do not install the unit near a heat or steam source, or where considerable amounts of oil,
iron powder, or flour are used.
Do not install the unit where sulfuric acid and flammable or corrosive gases are generated,
vented into, or stored.
Do not install the unit near high-frequency generators.
Do not install the unit near a doorway.
The unit will be damaged, will malfunction, and / or will not operate as designed if installed in any of the conditions listed.
Indoor units (IDUs) must not be placed in an environment where the IDUs will be exposed to harmful volatile organic compounds (VOCs)
or in environments where there is improper air make up or supply or inadequate ventilation. If there are concerns about VOCs in the envi­ronment where the IDUs are installed, proper air make up or supply and/or adequate ventilation must be provided. Additionally, in buildings where IDUs will be exposed to VOCs, consider a third party factory-applied epoxy coating to the fan coils for each IDU where the entire coil
is dipped, not sprayed.
If the unit is installed near a body of water, the installation parts are at risk of corroding. Appropriate anti-corrosion methods must be taken for
the unit and all installation parts.
9-27/32 (250) or below from the Floor
More than 11-13/16 (300)
More than 11-13/16 (300)
[Unit : inch (mm)]
Low Wall Console
Installing in an Area Exposed to Unconditioned Air
In some installation applications, areas (floors, walls) in some rooms will be exposed to unconditioned air (room will be above or next to an
unheated garage or storeroom). To countermeasure:
• Verify that carpet is or will be installed (carpet will increase the temperature by three degrees).
• Add insulation between the floor joists.
• Install radiant heat or another type of heating system to the floor.
Selecting Installation Method
The unit can be installed in one of three configurations:
• On the floor.
• Mounted on the wall above floor molding.
• Half concealed (recessed) in an opening in the wall.
If the unit is installed near a body of water, certain components are at risk of being corroded. Appropriate anti-corrosion methods must be taken for the
unit and all components.
6 screw (M*25L)
Figure 105:Floor Installation
2-17/32 (64)
(180)
7-3/32
5-1/2
(140)
(170)
6-11/16
8-9/32 (210)
1-3/16 (30.5)
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
27-9/16 (700)
6-1/4 (159)
25-15/32 (647)
[Unit : inch (mm)]
1-1/32 (26)
5-1/2(140)
6-11/16 (170)
6-5/16 (160)
1-3/16 (30.5)
23-5/8 (600)
22-19/32 (574)
STD. WALL-MOUNTED | 85
Page 86
MULTI
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MULTI
F
Figure 106:Wall Installation.
Installation Plate
4 screw (M*25L)
Molding
Figure 107:Recessed Installation.
Wall
26-3/8 (670)
Hole
5-1/2 (140)
6-11/16 (170)
1-25/32 (45)
23-1/32 (585)
Supplemental plate (Field supply)
7/8 (200)
5-29/32 (150)
25-15/32 (647)
Multi F and Multi F MAX Indoor Unit Engineering Manual
3-3/4 (95)
5-1/2 (140)
6-11/16 (170)
Supplemental plate (Field supply)
7/8 (200)
5-29/32 (150)
Mounting the Installation Plate
The mounting wall must be strong and solid enough to protect the unit from vibration.
• Mount the installation plate on the wall using the Type “A” screws. If mounting the unit on concrete, consider using anchor bolts.
• Always mount the installation plate horizontally. Measure the wall and mark the centerline using thread and a level.
86 | STD. WALL-MOUNTED
[Unit : inch (mm)]
Due to our policy of continuous product innovation, some specications may change without notication.
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Page 87
MULTI
F
MAX
MULTI
F
Selecting Pipe Routing
The pipe can be routed in one of six directions as shown in Figure 108.
Figure 108:Pipe Holes and Routing.
Pipe Guide
Pipe Guide
Connecting Pipe must be placed inside to the pipe guide.
[Unit : inch (mm)]
1-25/32 (45)
Left bottom piping
3-17/32 (90)
Wall
2-15/16 (75)
Pipe Connection
Connect the pipes as shown in Figure 109
1. Hold up the Sensor Link.
2. Separate the Pipe Bracket (2 screws)
3. Connect the refrigerant pipe. (Refer to next page)
4. Assemble the Pipe Bracket (2 screws)
5. Put down the Sensor Link.
Connecting
Connecting Pipe
Pipe
2-3/8 (60)
Right bottom piping
3-17/32 (90)
1-25/32 (45)
Left back piping
Figure 109:Pipe Connection.
21
3
2
2-15/16 (75)
Right back piping
1
4
Right back piping
1-25/32 (45)
3
5
1-31/32 (50)
Left/right piping
6
Low Wall Console
1-9/16 (40)
54
Due to our policy of continuous product innovation, some specications may change without notication.
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STD. WALL-MOUNTED | 87
Page 88
MULTI
F
MAX
MULTI
F
LOW WALL CONSOLE INDOOR UNITS
Installation and Best Layout Practices
Pipe Routing and Insulation
If the drain hose is routed inside the room insulate the hose with an insulation material* so that dripping from sweating (condensation) will not damage furniture or floors. * Foamed polyethylene or equivalent is
recommended.
Connecting the installation pipe and drain hose to the indoor unit.
1. Align the center of the pipes and sufficiently tighten the flare nut by hand.
2. Tighten the flare nut with a wrench.
Indoor unit tubing Flare nut Pipes
Tape
Connecting cable
Drain hose
Connecting pipe
Outside diameter Torque
mm inch kgf.m Ø6.35 1/4 1.8~2.5 Ø9.52 3/8 3.4~4.2 Ø12.7 1/2 5.5~6.5 Ø15.88 5/8 6.3~8.2 Ø19.05 3/4 9.9~12.1
3. When needed to extend the drain hose of indoor unit, assemble the drain pipe as shown on the drawing
Wrap the insulation material around the connecting portion.
1. Overlap the connection pipe insulation material and the indoor unit pipe insulation material. Bind them together with vinyl tape
Multi F and Multi F MAX Indoor Unit Engineering Manual
so that there may be no gap.
2. Wrap the area which accommodates the rear piping housing section with vinyl tape.
3. Bundle the piping and drain hose together by wrapping them with vinyl tape sufficient enough to cover where they fit into the rear piping housing section.
Connection pipe
Vinyl tape (wide)
Wrench
Indoor unit tubing
Drain pipe
Pipe
Open-end wrench (fixed)
Indoor unit drain hose
Vinyl tape(narrow)
Adhesive
Wrap with vinyl tape
Connecting cable
Vinyl tape(narrow)
Wrap with vinyl tape
Flare nut
Connection pipe
Insulation material
Indoor unit pipe
Pipe
88 | STD. WALL-MOUNTED
Drain hose
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Vinyl tape(wide)
Page 89
MULTI
F
MAX
MULTI
F
LOW WALL CONSOLE INDOOR UNITS
Connecting Cable
Installation and Best Layout Practices
Power Wiring / Communications Cable Guidelines
• Follow manufacturer’s circuit diagrams in the technical manuals.
• Confirm power source specifications.
• Confirm that the electrical capacity is sufficient.
• Starting current must be maintained ±10 percent of the rated current marked on the outdoor unit name plate.
• Confirm cable thickness specifications.
• It is required that a circuit breaker is installed, especially if conditions could become wet or moist.
• Include a disconnect in the power wiring system, add an air gap contact separation of at least 1/8 inch in each active (phase) conductor.
• Loose wiring will cause unit to malfunction, overheat, and catch fire, resulting in severe injury or death.
Note:
Terminal screws will become loose during transport. Properly tighten the terminal connections during installation.
A voltage drop will cause the following problems:
Magnetic switch vibration, fuse breaks, or disturbance to the normal function of an overload protection device.
• Compressor will not receive the proper starting current.
Connect Power Wiring and Communications Cable
1. Insert the power wiring / communications cable from the outdoor
unit or branch distribution unit (Multi F MAX systems only).
2. Remove screws 1 and 2 and remove control box cover.
3. Connect each wire to its appropriate terminal on the indoor unit
control board. Verify that the color and terminal numbers from the outdoor unit or branch distribution unit (Multi F MAX systems only) wiring match the color and terminal numbers on the indoor unit.
4. Secure power wiring/communications cable with cable restraint.
Figure 111:Simplied View of Indoor Unit to Outdoor Unit / Branch Distribution Unit Terminal Connections
Figure 110: Connecting Power Wiring / Communications Cable.
11
3
3
2
2
Figure 112:Securing Wiring to Unit.
Terminal Block
Clamp Cord
Low Wall Console
Terminal Block of Indoor Unit
L(L1) N(L2) 3
Outdoor
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Lock nut (Field supply)
Bracket
Conduit (Field supply)
STD. WALL-MOUNTED | 89
Page 90
MULTI
F
MAX
MULTI
F
LOW WALL CONSOLE INDOOR UNITS
Installation and Best Layout Practices
Power Connection
1. All wiring must comply with applicable code.
2. Select a power source that is capable of supplying the current required by the air conditioner.
3. Feed the power source to the unit via a distribution switch board designed for this purpose.
4. The terminal screws inside the control box may be loose due to vibration during transport. Check the screws for loose connection.
(Running the air conditioner with loose connection can overload and damage electrical components.)
5. Always ground the air conditioner with a grounding wire and connector to meet applicable code.
Figure 113:Power Wiring.
Main power source
Air
Conditioner
Circuit Breaker
Multi F and Multi F MAX Indoor Unit Engineering Manual
90 | STD. WALL-MOUNTED
Due to our policy of continuous product innovation, some specications may change without notication.
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Page 91
MULTI
F
MAX
MULTI
F
4 to 5 feet
above the floor
NO
NO
NO
YES
Remote Controller
TEMP
Remote Controller
TEMP
Re
m
ot
e
C
o
n
t
r
ol
l
er
TEMP
LOW WALL CONSOLE INDOOR UNITS
Installation and Best Layout Practices
Wired Controller Connections
Figure 114:Wired Controller Connection on Indoor Unit Terminal Block— . Figure 115:Wired Controller Connection on Indoor Unit Terminal Block—
Indoor Unit Terminal Block
GND
L (L1
)N (L2)
BR
BL
3
RD
GRN / YLW
To Outdoor Unit or Branch Distribution Unit
(Multi F MAX Systems Only)
CN-REMO
To Wired Controller
GND
L (L1) N (L2)
GRN / YLW
To Outdoor Unit or Branch Distribution Unit
(Multi F MAX Systems Only)
Wired Controller Placement
Wired controllers include a sensor to detect room temperature. To maintain comfort
levels in the conditioned space, the wired controller must be installed in a location away from direct sunlight, high humidity, and where it could be directly exposed to cold air. Controller must be installed four (4) to five (5) feet above the floor where its LED display can be read easily, in an area with good air circulation, and where it can detect an aver­age room temperature.
Do not install the wired controller near or in:
• Drafts or dead spots behind doors and in corners
• Hot or cold air from ducts
• Radiant heat from the sun or appliances
• Concealed pipes and chimneys
• An area where temperatures are uncontrolled, such as an outside wall
Indoor Unit Terminal Block
CN-REMO
BR
BL
3
RD
To Wired Controller
Figure 116:Proper Location for the Wired Controller.
Low Wall Console
Due to our policy of continuous product innovation, some specications may change without notication.
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STD. WALL-MOUNTED | 91
Page 92
MULTI
F
MAX
MULTI
F
Top
Wall Wall
Wall Wall
Installing the Controller
Removing the Controller
LOW WALL CONSOLE INDOOR UNITS
Installation and Best Layout Practices
Hanging the Wired Controller
1. The controller wiring / cable can be installed in one of three direc-
tions: top, back, or on the right side. If top or right side installation
is desired, remove cable guide grooves on the controller, and then position wiring / cable on applicable side.
2. Choose and mark the area of installation. Use the provided parts
and screw the wall plate into place. Install the controller wall plate to fit the electrical box if one is present. Ensure that no gaps exist between the wall plate and the wall itself.
3. Arrange wiring / cables so as not to interfere with the controller
circuitry. Position the wired controller on the wall plate. Snap into place by pressing the bottom part of the wired controller onto the wall plate. Make sure that no gaps exist between the wired controller and the wall plate on all sides.
4. To remove wired controller from the wall plate, insert a screw-
driver into the two holes at the bottom. Twist screwdriver to release controller. Do not damage the controller components when removing.
Figure 117:Removing the Cable Guide Grooves.
Top
Back
Figure 118:Attaching the Wall Plate.
Right Side
Figure 119:Installing / Removing the Controller.
Right Side
Assigning the Thermistor for Temperature Detection
Each indoor unit includes a return air thermistor assigned to sense the temperature. If a wired controller is installed, there is a choice of sensing temperature with either the indoor unit return air thermistor or the thermistor in the wired controller. It is also an option to set both thermistors to sense temperature so that indoor unit bases its operation on the first thermistor to reach the designated temperature differen­tial. For applicable indoor units, an optional Remote Temperature Sensor can be used in lieu of the return air thermistor—either alone or in conjunction with a wired controller thermistor as previously described.
Multi F and Multi F MAX Indoor Unit Engineering Manual
92 | STD. WALL-MOUNTED
Due to our policy of continuous product innovation, some specications may change without notication.
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Page 93
CEILING-CONCEALED
DUCT (LOW STATIC)
INDOOR UNIT DATA
“Mechanical Specifications” on page 94
“General Data / Specifications” on page 95
“Dimensions” on page 96
“Cooling Capacity Table” on page 97
“Heating Capacity Table” on page 99
“External Static Pressure” on page 100
“Acoustic Data” on page 101
“Refrigerant Flow Diagrams” on page 102
“Wiring Diagram” on page 104
“Factory Supplied Parts and Materials” on page 106
“Installation and Best Layout Practices” on page 107
Page 94
DUCT (LOW STATIC) INDOOR UNITS
MULTI
F
MAX
MULTI
F
Mechanical Specications and Features
Ceiling-Concealed Duct (Low Static) Indoor Unit
General
All LG indoor units are factory assembled, wired, piped, and pro­vided with a control circuit board, fan, and motor. Ceiling-Concealed Duct (Low Static) units have a sound rating no higher than 36 dB(A) as tested per KSA0701 ISO Standard 3745, and are designed for
low-static pressure up to 0.20″WG.
Coil
Indoor unit coils are factory built and are comprised of aluminum fins mechanically bonded to copper tubing. Each unit has two rows of coils, which are pressure tested at the factory. Each unit is provided with a factory installed condensate drain pan below the coil.
Refrigerant System
System is designed for use with R410A refrigerant. The refrigeration circuit is pressure-tested at the factory and shipped with a holding charge of helium gas. Refrigerant pipe connections are 45° flare, and all refrigerant lines from the outdoor unit to the indoor units must be field insulated.
Electrical
Each indoor unit is designed to operate using 208–230/60/1 power with voltage variances of ±10%.
Figure 120: Ceiling-Concealed Duct (Low Static) Indoor Unit.
Air Filter
Return air is filtered with a factory-supplied, removable, washable filter accessible from the rear of the indoor unit.
Microprocessor Control
The unit is provided with an integrated control panel to communicate with the outdoor unit. All unit operation parameters are stored in non­volatile memory residing on the unit microprocessor. The micropro­cessor controls space temperature through using the value provided by the temperature sensor within the indoor unit. The microprocessor control will activate indoor unit operation when the indoor room tem­perature falls below or rises above a setpoint temperature, at which point, a signal is sent to the outdoor unit to begin the appropriate mode. The microprocessor will also provide self-diagnostics and auto restart functions. A field-supplied four-wire power / communications cable must be installed to connect the indoor unit(s) to the outdoor unit.
Casing
The case has a low profile design with a maximum height of 7.5 inches designed to mount fully concealed above a finished ceiling in as little as 8 inches vertical space. Casing is manufactured of gal­vanized steel plate, and provided with hanger brackets designed to support the weight on four corners. Unit has a front horizontal supply air discharge outlet, and one rear horizontal return air inlet; unit is also field-convertible for a rear bottom return.
Fan Assembly and Control
The units have at least two direct-drive, Sirocco fans made of
Multi F and Multi F MAX Indoor Unit Engineering Manual
high strength ABS HT-700 polymeric resin that are statically and dynamically balanced. The fans are mounted on a common brush­less digitally controlled (BLDC) motor with permanently lubricated and sealed ball bearings. The fan / motor assembly is mounted on vibration-attenuating rubber grommets. Fan speed is controlled using a microprocessor-based direct digital control algorithm. The indoor fan has Low, Med, High, and Auto settings for Cooling mode; and has Low, Med, High, and Auto settings for Heating mode. Each of the settings can be field-adjusted from the factory setting (RPM / ESP). The Auto setting adjusts the fan speed based on the difference between the controller set-point and space temperature.
The indoor units are Wi-Fi compatible with the addition of an LG Wi­Fi module accessory, and can be controlled by LG’s Smart ThinQ™ app on a smart device. A field-supplied Wi-Fi network and smart
device are required. The Smart ThinQ app is free, and is available
for Android™ and iOS. (Android is a trademark of Google LLC.)
Controls
The indoor unit controller of choice must be ordered separately. Communication between the indoor units and the outdoor unit is
accomplished through 14 AWG, four-core, stranded, shielded or
unshielded power / communication cable.
Condensate Lift/Pump
The indoor unit is provided with a factory installed and wired conden­sate lift/pump capable of providing a minimum 27.5 inch lift from the bottom surface of the unit. Drain pump has a safety switch to shut off the indoor unit if the condensate rises too high in the drain pan.
Features
• Inverter (Variable speed fan)
• External mounted drain pump
• Control lock function
• Auto operation
94 | DUCT (LOW STATIC)
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• Auto restart operation
• Dehumidification function
• Two thermistor control
• External static pressure control
Due to our policy of continuous product innovation, some specications may change without notication.
• Self-diagnostics function
• Group control
Wired controller ordered separately
Wi-Fi compatible
Page 95
DUCT (LOW STATIC) INDOOR UNITS
MULTI
F
MAX
MULTI
F
Table 40: Multi F Ceiling-Concealed Low-Static Ducted Indoor Unit General Data.
Model Name LDN097HV4 LDN127HV4 LDN187HV4
Nominal Cooling Capacity (Btu/h)
Nominal Heating Capacity (Btu/h)
1
1
Operating Range
Cooling (°F WB)
Heating (°F DB)
Fan
Type
Motor Output (W) x Qty.
Motor/Drive
Airflow Rate CFM (H/M/L)
Factory Set External Static Pressure (in. wg)
Max. External Static Pressure (in. wg)
Unit Data
Refrigerant Type
2
Refrigerant Control
Power Supply V, Ø, Hz3
Rated Amps (A)
Sound Pressure Level dB(A) (H/M/L)4
Dimensions (W x H x D, in.)
27-9/16 x 7-15/32 x 27-9/16 35-7/16 x 7-15/32 x 27-9/16
Net Unit Weight (lbs.) Shipping Weight (lbs.) Power Wiring / Communications Cable (No. x AWG)5
Heat Exchanger (Row x Column x Fin / inch) x Number
Pipe Size
Liquid Line (in.)
Vapor Line (in.)
Connection Size
Liquid Line (in.)
Vapor Line (in.)
Drain O.D. / I.D. (in.)
1
Nominal capacity is rated 0 ft. above sea level with corresponding refrigerant piping length in accordance with standard length of each outdoor unit and a 0 ft. level difference between outdoor and indoor units. All capacities are net with a combination ratio between 95 – 105%.
Nominal cooling 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). Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF
wet bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
2
This unit comes with a dry helium charge.
9,000 12,000 18,000
10,400 13,800 20,800
19 x 1 5 x 1, 19 x 1
318 / 247 / 194 353 / 300 / 247 530 / 441 / 353
0.40 0.80
30 / 26 / 23 31 / 28 / 27 36 / 34 / 31
39 51 48.5
46 60 57.3
(2 x 11 x 14) x 1 (2 x 11 x 18) x 1
3
Acceptable operating voltage: 187V-253V.
4
Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745 and are the same in both cooling and heating mode. These values can increase due to ambient conditions during operation.
5
All power wiring / communications cable to the IDUs be minimum 14 AWG, 4-conductor, stranded,
shielded or unshielded (if shielded, must be grounded to chassis at ODU only) and must comply with applicable local and national codes.
General Data / Specications
57-77
59-81
Sirocco
Ceiling-Concealed Duct (Low Static)
Brushless Digitally Controlled / Direct
0.10
0.20
R410A
EEV
208-230, 1, 60
4 x 14
1/4
3/8 1/2
1/4
3/8 1/2
1-1/4, 1
Due to our policy of continuous product innovation, some specications may change without notication.
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DUCT (LOW STATIC) | 95
Page 96
DUCT (LOW STATIC) INDOOR UNITS
MULTI
F
MAX
MULTI
F
Dimensions
Figure 121:LDN097HV4, LDN127HV4, and LDN187HV4 Dimensions.
5-5/16 1-3/8
13/16
Top
D
Supply Air
LDN187HV4
Multi F and Multi F MAX Indoor Unit Engineering Manual
96 | DUCT (LOW STATIC)
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Page 97
DUCT (LOW STATIC) INDOOR UNITS
MULTI
F
MAX
MULTI
F
Cooling Capacity Table
Table 41: Multi F Ceiling-Concealed Duct (Low Static) Indoor Units Cooling Capacity Table.
Model No. /
Nominal Capacity
of Indoor Unit
(Btu/h)
LDN097HV4
9,000
LDN127HV4
12,000
TC = Total Capacity (kBtu/h).
SHC: Sensible Heat Capacity (kBtu/h).
Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal cooling 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). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently.
Outdoor Air
Temp.
(°F DB)
14 8.82 7.55 9.37 7.98 9.92 7.72 10.31 7.89 11.01 7.95 11.56 8.10 20 8.82 7.61 9.36 8.04 9.91 7.78 10.31 7.95 11.01 8.01 11.55 8.17 25 8.81 7.67 9.36 8.10 9.90 7.84 10.30 8.01 11.00 8.08 11.54 8.23 30 8.80 7.73 9.35 8.16 9.90 7.90 10.29 8.07 10.99 8.14 11.54 8.29 35 8.80 7.79 9.34 8.22 9.89 7.96 10.28 8.13 10.98 8.20 11.53 8.36 40 8.79 7.84 9.33 8.29 9.88 8.02 10.27 8.19 10.97 8.26 11.52 8.42 45 8.78 7.90 9.33 8.35 9.87 8.08 10.27 8.25 10.96 8.32 11.51 8.48 50 8.78 7.96 9.32 8.41 9.87 8.14 10.26 8.31 10.96 8.38 11.50 8.54 55 8.77 8.02 9.31 8.47 9.86 8.20 10.25 8.38 10.95 8.45 11.49 8.61 60 8.76 8.08 9.31 8.53 9.85 8.26 10.24 8.44 10.94 8.51 11.48 8.67 65 8.76 8.14 9.30 8.59 9.84 8.32 10.24 8.50 10.93 8.57 11.47 8.73 70 8.75 8.19 9.29 8.66 9.84 8.38 10.23 8.56 10.92 8.63 11.47 8.79 75 8.54 8.06 9.08 8.52 9.62 8.26 10.01 8.44 10.71 8.53 11.25 8.69 80 8.33 7.92 8.87 8.39 9.41 8.14 9.80 8.33 10.49 8.42 11.03 8.59 85 8.12 7.78 8.66 8.25 9.20 8.02 9.59 8.20 10.28 8.30 10.82 8.48 90 7.91 7.63 8.45 8.10 8.99 7.89 9.37 8.08 10.06 8.19 10.60 8.37
95 7.68 7.55 8.22 8.03 8.75 7.83 9.00 7.90 9.83 8.14 10.36 8.34 100 7.50 7.35 8.03 7.83 8.57 7.64 8.88 7.78 9.64 7.97 10.17 8.16 105 7.31 7.15 7.84 7.63 8.38 7.45 8.77 7.66 9.45 7.79 9.99 7.99 110 7.12 6.90 7.66 7.38 8.19 7.22 8.58 7.43 9.26 7.57 9.80 7.77 115 6.94 6.69 7.47 7.17 8.01 7.03 8.39 7.24 9.08 7.39 9.61 7.60 118 6.82 6.65 7.36 7.13 7.89 7.00 8.28 7.21 8.96 7.37 9.50 7.58 122 6.79 6.63 7.32 7.11 7.86 6.98 8.24 7.19 8.93 7.36 9.46 7.57
14 11.76 9.94 12.49 10.50 13.22 10.17 13.75 10.38 14.69 10.47 15.42 10.67
20 11.75 10.02 12.48 10.58 13.21 10.25 13.74 10.46 14.67 10.55 15.40 10.75
25 11.75 10.09 12.48 10.66 13.20 10.33 13.73 10.54 14.66 10.63 15.39 10.83
30 11.74 10.17 12.47 10.75 13.19 10.40 13.72 10.62 14.65 10.71 15.38 10.92
35 11.73 10.25 12.46 10.83 13.18 10.48 13.71 10.70 14.64 10.79 15.37 11.00
40 11.72 10.33 12.45 10.91 13.17 10.56 13.70 10.79 14.63 10.88 15.36 11.08
45 11.71 10.40 12.44 10.99 13.16 10.64 13.69 10.87 14.62 10.96 15.35 11.16
50 11.70 10.48 12.43 11.07 13.15 10.72 13.68 10.95 14.61 11.04 15.33 11.25
55 11.69 10.56 12.42 11.15 13.14 10.80 13.67 11.03 14.60 11.12 15.32 11.33
60 11.68 10.63 12.41 11.23 13.13 10.88 13.66 11. 11 14.59 11.20 15.31 11.41
65 11.67 10.71 12.40 11.31 13.12 10.96 13.65 11.19 14.57 11.28 15.30 11.49
70 11.66 10.79 12.39 11.40 13.11 11.03 13.64 11.27 14.56 11.36 15.29 11.58
75 11.38 10.61 12.11 11.22 12.83 10.88 13.35 11.12 14.27 11.22 15.00 11.45
80 11.10 10.43 11.82 11.05 12.55 10.72 13.07 10.96 13.99 11.08 14.71 11.31
85 10.83 10.24 11.54 10.86 12.26 10.55 12.78 10.80 13.70 10.93 14.42 11.17
90 10.55 10.04 11.26 10.67 11.98 10.38 12.50 10.63 13.42 10.78 14.13 11.02
95 10.25 9.94 10.96 10.57 11.67 10.30 12.00 10.40 13.10 10.72 13.81 10.97 100 10.00 9.67 10.71 10.31 11.42 10.06 11.84 10.24 12.85 10.49 13.56 10.75 105 9.75 9.41 10.46 10.04 11.17 9.81 11.69 10.08 12.60 10.26 13.31 10.52 110 9.50 9.09 10.21 9.72 10.92 9.51 11.44 9.78 12.35 9.97 13.07 10.24 115 9.25 8.81 9.96 9.44 10.67 9.26 11.19 9.53 12.10 9.73 12.82 10.00 118 9.10 8.75 9.81 9.39 10.52 9.21 11.04 9.49 11.95 9.70 12.67 9.98 122 9.05 8.73 9.76 9.37 10.48 9.19 10.99 9.47 11.90 9.69 12.62 9.97
68 / 57 73 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC
Indoor Air Temp. °F DB / °F WB
Ceiling-Concealed Duct (Low Static)
Due to our policy of continuous product innovation, some specications may change without notication.
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DUCT (LOW STATIC) | 97
Page 98
DUCT (LOW STATIC) INDOOR UNITS
MULTI
F
MAX
MULTI
F
Cooling Capacity Table
Table 42: Multi F Ceiling-Concealed Duct (Low Static) Indoor Units Cooling Capacity Table (continued).
Model No. /
Nominal Capacity
of Indoor Unit
(Btu/h)
LDN187HV4
18,000
TC = Total Capacity (kBtu/h).
SHC: Sensible Heat Capacity (kBtu/h).
Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal cooling 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). The shaded table columns and rows indicate reference data. When operating at this temperature, these values can be different if the system is not running consistently.
Outdoor Air
Temp.
(°F DB)
14 17.65 13.09 18.74 13.83 19.84 13.39 20.63 13.67 22.03 13.79 23.12 14.05
20 17.63 13.20 18.73 13.94 19.82 13.50 20.61 13.78 22.01 13.90 23.11 14.16
25 17.62 13.30 18.71 14.05 19.81 13.60 20.60 13.89 22.00 14.01 23.09 14.27
30 17.60 13.40 18.70 14.16 19.79 13.71 20.58 13.99 21.98 14.11 23.07 14.38
35 17.59 13.50 18.68 14.26 19.78 13.81 20.57 14.10 21.96 14.22 23.05 14.49
40 17.58 13.60 18.67 14.37 19.76 13.91 20.55 14.21 21.94 14.33 23.04 14.60
45 17.56 13.71 18.66 14.48 19.75 14.02 20.53 14.31 21.93 14.43 23.02 14.71
50 17.55 13.81 18.64 14.58 19.73 14.12 20.52 14.42 21.91 14.54 23.00 14.82
55 17.54 13.91 18.63 14.69 19.72 14.23 20.50 14.52 21.89 14.65 22.98 14.92
60 17.52 14.01 18.61 14.80 19.70 14.33 20.49 14.63 21.88 14.75 22.97 15.03
65 17.51 14.11 18.60 14.90 19.69 14.43 20.47 14.74 21.86 14.86 22.95 15.14
70 17.50 14.21 18.58 15.01 19.67 14.53 20.46 14.84 21.84 14.97 22.93 15.25
75 17.08 13.98 18.16 14.78 19.24 14.33 20.03 14.64 21.41 14.78 22.50 15.08
80 16.66 13.74 17.74 14.55 18.82 14.12 19.60 14.44 20.98 14.60 22.06 14.90
85 16.24 13.49 17.32 14.30 18.40 13.90 19.17 14.23 20.55 14.40 21.63 14.71
90 15.82 13.23 16.90 14.06 17.97 13.68 18.75 14.01 20.12 14.20 21.20 14.52
95 15.37 13.09 16.44 13.93 17.51 13.57 18.00 13.70 19.65 14.12 20.72 14.46 100 14.99 12.74 16.06 13.58 17.13 13.25 17.77 13.49 19.28 13.82 20.35 14.16 105 14.62 12.39 15.69 13.23 16.76 12.93 17.53 13.28 18.90 13.52 19.97 13.86 110 14.24 11.97 15.32 12.80 16.39 12.53 17.16 12.88 18.53 13.13 19.60 13.48 115 13.87 11.61 14.94 12.44 16.01 12.19 16.79 12.55 18.15 12.82 19.22 13.18 118 13.65 11.53 14.72 12.36 15.79 12.13 16.56 12.50 17.93 12.77 19.00 13.14 122 13.57 11.50 14.64 12.34 15.71 12.11 16.49 12.48 17.85 12.76 18.92 13.13
68 / 57 73 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC
Indoor Air Temp. °F DB / °F WB
Multi F and Multi F MAX Indoor Unit Engineering Manual
98 | DUCT (LOW STATIC)
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Page 99
DUCT (LOW STATIC) INDOOR UNITS
MULTI
F
MAX
MULTI
F
Heating Capacity Table
Table 43: Multi F Ceiling-Concealed Duct (Low Static) Indoor Units Heating Capacity Table.
Model No. /
Nominal Capacity of
Indoor Unit
(Btu/h)
LDN097HV4
9,000
LDN127HV4
12,000
LDN187HV4
18,000
TC = Total Capacity (kBtu/h). Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
Outdoor Air Temp. Indoor Air Temp. °F DB
61 64 68 70 72 75
°F DB °F WB
0 -0.4 5.35 5.28 5.23 5.20 5.12 4.90
5 4.5 6.03 5.95 5.90 5.88 5.80 5.58 10 9 6.71 6.63 6.58 6.56 6.48 6.26 17 15 7.61 7.54 7.49 7.46 7.39 7.14 20 19 7.95 7.88 7.83 7.80 7.72 7.46 25 23 8.52 8.44 8.39 8.37 8.29 7.99 30 28 9.01 8.93 8.88 8.86 8.78 8.52 35 32 9.50 9.42 9.37 9.34 9.27 9.04 40 36 9.94 9.86 9.81 9.78 9.71 9.48 45 41 10.37 10.30 10.25 10.22 10.15 9.92 47 43 10.55 10.48 10.43 10.40 10.32 10.10 50 46 10.72 10.64 10.59 10.57 10.49 10.24 55 51 11.00 10.93 10.88 10.85 10.78 10.48 60 56 11.00 10.93 10.88 10.85 10.78 10.52 63 59 11.00 10.93 10.88 10.85 10.78 10.55 68 64 11.00 10.93 10.88 10.85 10.78 10.60
0 -0.4 7.10 7.00 6.93 6.90 6.80 6.50
5 4.5 8.00 7.90 7.83 7.80 7.70 7.40 10 9 8.90 8.80 8.73 8.70 8.60 8.30 17 15 10.10 10.00 9.93 9.90 9.80 9.48 20 19 10.55 10.45 10.38 10.35 10.25 9.90 25 23 11.30 11.20 11.13 11.10 11.00 10.60 30 28 11.95 11.85 11.78 11.75 11.65 11.30 35 32 12.60 12.50 12.43 12.40 12.30 12.00 40 36 13.18 13.08 13.02 12.98 12.88 12.58 45 41 13.77 13.67 13.60 13.57 13.47 13.17 47 43 14.00 13.90 13.83 13.80 13.70 13.40 50 46 14.23 14.13 14.06 14.03 13.93 13.59 55 51 14.60 14.50 14.43 14.40 14.30 13.90 60 56 14.60 14.50 14.43 14.40 14.30 13.96 63 59 14.60 14.50 14.43 14.40 14.30 14.00 68 64 14.60 14.50 14.43 14.40 14.30 14.06
0 -0.4 10.70 10.55 10.45 10.40 10.25 9.80
5 4.5 12.06 11.91 11.81 11.76 11.61 11.15 10 9 13.41 13.26 13.16 13.11 12.96 12.51 17 15 15.22 15.07 14.97 14.92 14.77 14.29 20 19 15.90 15.75 15.65 15.60 15.45 14.92 25 23 17.03 16.88 16.78 16.73 16.58 15.98 30 28 18.01 17.86 17.76 17.71 17.56 17.03 35 32 18.99 18.84 18.74 18.69 18.54 18.09 40 36 19.87 19.72 19.62 19.57 19.42 18.97 45 41 20.75 20.60 20.50 20.45 20.30 19.85 47 43 21.10 20.95 20.85 20.80 20.65 20.20 50 46 21.44 21.29 21.19 21.14 20.99 20.48 55 51 22.01 21.86 21.75 21.70 21.55 20.95 60 56 22.01 21.86 21.75 21.70 21.55 21.04 63 59 22.01 21.86 21.75 21.70 21.55 21.10 68 64 22.01 21.86 21.75 21.70 21.55 21.20
TC TC TC TC TC TC
Ceiling-Concealed Duct (Low Static)
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
DUCT (LOW STATIC) | 99
Page 100
DUCT (LOW STATIC) INDOOR UNITS
MULTI
F
MAX
MULTI
F
External Static Pressure
Table 44: Multi F Ceiling-Concealed Duct (Low Static) External Static Pressure Setting Values Table.
Static Pressure (in. wg) 0.0 0.04 0.08 0.12 0.16 0.20
Model No. / Nominal Capacity
of Indoor Unit (Btu/h)
LDN097HV4
9,000
LDN127HV4
12,000
LDN187HV4
18,000
• To get the desired air flow and external static pressure combination, use the setting value from the table. Using a setting value other than that listed in the table will not provide the desired combination.
• Table data is based at 230V. Air flow rate varies according to voltage fluctuation.
Airflow Rate / CFM Setting Value
High 318 98 103 108 11 6 123 130
Mid 247 82 88 94 102 110 118
Low 194 69 76 83 91 99 109
High 353 95 99 104 109 116 124
Mid 300 86 91 96 101 108 116
Low 247 78 82 87 93 100 108
High 530 123 125 129 134 141 145
Mid 441 109 112 117 123 129 136
Low 353 95 99 104 109 116 124
Multi F and Multi F MAX Indoor Unit Engineering Manual
100 | DUCT (LOW STATIC)
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
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