SINGLE ZONE EXTENDED PIPING
WALL MOUNTED
ENGINEERING MANUAL
2 Tons
LS243HLV3
2-1/2 and 2-3/4 Tons
LS303HLV3, LS363HLV3
For continual product development, LG Electronics U.S.A., Inc., reserves the right to change specifications without notice.
© LG Electronics U.S.A., Inc.
PROPRIETARY DATA NOTICE
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.
A summary list of safety precautions is on page 3.
For more technical materials such as submittals, catalogs, installation,
owner’s, and service manuals, visit www.lghvac.com.
TABLE OF CONTENTS
TABLE OF SYMBOLS
D ANGER
This symbol indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
This symbol indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
This symbol indicates a potentially hazardous situation which, if not avoided, will result in minor or moderate injury.
Note:
This symbol indicates situations that will result in equipment or property damage accidents only.
This symbol indicates an action that should not be performed.
Unit Nomenclature .........................................................................................................................................................................................................4
LG Air Conditioner Technical Solution (LATS) .........................................................................................................................................................5-6
Product Data ..............................................................................................................................................................................................................7-35
Mechanical Specifications ............................................................................................................................................................................................8
General Data ...........................................................................................................................................................................................................9-10
Electrical Data ............................................................................................................................................................................................................ 11
Functions, Controls, Options ...................................................................................................................................................................................... 12
Outdoor Unit Dimensions ......................................................................................................................................................................................13-14
Indoor Unit Dimensions .........................................................................................................................................................................................15-16
Acoustic Data ........................................................................................................................................................................................................17-20
Refrigerant Flow Diagram ....................................................................................................................................................................................21
Indoor Unit Wiring Diagram .................................................................................................................................................................................22
Outdoor Unit Wiring Diagram ...............................................................................................................................................................................23
Electrical Connections ...........................................................................................................................................................................................24-27
Air Flow, Static Pressure, and Temperature Distribution .......................................................................................................................................28-33
Performance Data ..................................... ..............................................................................................................................................................34-44
Cooling Capacity ...................................................................................................................................................................................................35-36
Maximum Cooling Capacity ...................................................................................................................................................................................37-38
Heating Capacity ...................................................................................................................................................................................................39-40
Maximum Heating Capacity ...................................................................................................................................................................................41-42
Equipment Selection Procedure ............................................................................................................................................................................43-44
Application Guidelines ............................................................................................................................................................................................45-54
Placement Considerations .....................................................................................................................................................................................46-50
Installing Outdoor Units Indoors ............................................................................................................................................................................51-53
Refrigerant Piping Design ...........................................................................................................................................................................................54
INTRODUCTION | 3
Introduction
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Single Zone Wall Mount Indoor and Outdoor Units
LS N 243 HLV
Indoor/Outdoor Product
HLV - Extended Piping
243 = 22 303 = 30 363 = 33
Type
N = Indoor Wall Mount Unit
U = Outdoor Heat Pump Unit
Family
LS = Wall Mounted
UNIT NOMENCLATURE
Capacity (Mbh)
Generation or Revision
1 = First
2 = Second
3 = Third
4 = Fourth
3
4| INTRODUCTION
Single Zone Extended Piping Wall Mounted Engineering Manual
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LG AIR CONDITIONER
TECHNICAL SOLUTION (LATS)
Figure 1: Example of LATS CAD2.
LG Air Conditioner Technical Solution (LATS) Software
A properly designed and installed refrigerant piping system is critical to the optimal performance of LG air-conditioning systems. To assist
engineers, LG offers, free of charge, LG Air Conditioner Technical Solution (LATS) software—a total design solution for LG air conditioning
systems. Contact your LG Rep for the best software program for your application.
To reduce the risk of designing an improper applied system or one that will not operate correctly, LG requires that LATS software be used on all projects.
Formats
LATS is available to LG customers in three user interfaces: LATS HVAC, LATS CAD2, and LATS Revit. All three LATS formats are available
through www.myLGHVAC.com, or contact an LG Sales Representative.
LATS HVAC is a Windows
®
-based application that aids engineers in designing LG Variable Refrigerant Flow (VRF), Multi F / Multi F MAX,
Single-Zone, and Energy Recovery Ventilator (ERV) systems.
*Windows
®
is a registered mark of Microsoft
®
Corporation.
LATS CAD2 combines the LG LATS program with AutoCAD
®
software**. It permits engineers to layout and validate LG Multi V
Variable Refrigerant Flow (VRF), Multi F / Multi F MAX, Single-Zone,
and Energy Recovery Ventilator (ERV) systems directly into CAD
drawings.
LATS Revit integrates the LG LATS program with Revit
®
software**.
It permits engineers to layout and validate Multi V VRF systems
directly into Revit drawings.
**AutoCAD® and Revit® are both registered marks of Autodesk, Inc.
Features
All LG product design criteria have been loaded into the program,
making LATS simple to use: double click or drag and drop the
component choices. Build systems in Tree Mode where the
refrigerant system can be viewed. Switch to a Schematic diagram to
see the electrical and communications wiring.
LATS software permits the user to input region data, indoor and outdoor design temperatures, modify humidity default values, zoning, specify
type and size of outdoor units and indoor units, and input air flow and external static pressure (ESP) for ducted indoor units.
The program can also:
• Import building loads from a separate Excel file.
• Present options for outdoor unit auto selection.
• Automatically calculate component capacity based on design
conditions for the chosen region.
• Verify if the height differences between the various system
components are within system limits.
• Provide the correct size of each refrigerant piping segment and LG
Y-Branches and Headers.
• Adjust overall piping system length when elbows are added.
• Check for component piping limitations and flag if any parameters
are broken.
• Factor operation and capacity for defrost operation.
• Calculate refrigerant charge, noting any additional trim charge.
• Suggest accessories for indoor units and outdoor units.
• Run system simulation.
Features depend on which LATS program is being used, and the type of system being designed.
INTRODUCTION | 5
Introduction
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LATS Generates a Complete Project Report
LATS software also generates a report containing project design parameters, cooling and heating design data, system component
performance, and capacity data. The report includes system combination ratio and refrigerant charge calculations; and provides detailed bill
of material, including outdoor units, indoor units, control devices, accessories, refrigerant pipe sizes segregated by building, by system, by
pipe size, and by pipe segments. LATS can generate an Excel GERP report that can imported into the LG SOPS pricing and ordering system.
Proper Design to Install Procedure
LG encourages a two report design-to-install-procedure. After the
design engineer determines building / zone loads and other details,
the engineer opens the LATS program and inputs the project’s
information. When the design is complete, the “Auto Piping” and
“System Check” functions must be used to verify piping sizes,
limitations, and if any design errors are present. If errors are found,
engineers must adjust the design, and run Auto Piping and System
Check again. When the design passes the checks, then the engineer
prints out a project “Shop Drawing” (LATS Tree Diagram) and
provides it to the installing contractor. The contractor must follow the
LATS Tree Diagram when building the piping system, but oftentimes
the design changes on the building site:
• Architect has changed location and/or purpose of room(s).
• Outdoor unit cannot be placed where originally intended.
• Structural elements prevent routing the piping as planned.
• Air conditioning system conflicts with other building systems (plumbing, gas lines, etc.).
The contractor must mark any deviation from the design on the Shop Drawing, including as-built straight lines and elbows. This “Mark Up”
drawing must be returned to the design engineer or Rep, who must input contractor changes into the LATS file. (Copy the original LATS
software file, save and rename as a separate file, and modify all piping lengths by double-clicking on each length and editing information.)
Like the shop drawing, the Auto Piping and System Check must also be run on this new “As Built” drawing. The design engineer or Rep must
then provide the final As Built file to the contractor. The Mark Up version must be compared to the As Built version for:
• Differences in pipe diameter(s). If incorrect diameters have been installed, the piping must be changed out. If pipe diameters have changed,
check to see if Y-Branches will also need to be changed.
• Changes to outdoor unit and indoor unit capacities. Capacities changes will impact line length changes.
• Additional refrigerant charge quantity (“Trim Charge”). Trim charge will change if piping lengths and diameters change. The As Built version
must reflect installed piping lengths to ensure correct trim charge.
All documents submitted by the contractor, as well as the Shop Drawing and the As Built Drawing files must be provided for commissioning
purposes. Model and serial numbers for all system components must also be submitted. If the steps previously detailed are not followed,
and all documents are not provided to the commissioning agent, the project runs the risk of not being commissioned and voiding any limited
warranty LG offers on the equipment.
Figure 2: Example of a LATS Tree Diagram.
LG AIR CONDITIONER
TECHNICAL SOLUTION (LATS)
Contact your LG representative for the best software program for your application.
6| INTRODUCTION
Single Zone Extended Piping Wall Mounted Engineering Manual
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PRODUCT DATA
Mechanical Specifications on page 8
General Data on page 9
Electrical Data on page 11
Functions, Controls, Options on page 12
Outdoor Unit Dimensions on page 13
Outdoor Unit Center of Gravity / Corner Weight on page 14
Indoor Unit Dimensions on page 15
Acoustic Data on page 17
Refrigerant Flow Diagram on page 21
Indoor Unit Wiring Diagram on page 22
Outdoor Unit Wiring Diagram on page 23
Electrical Connections on page 24
Air Flow, Static Pressure, and Temperature Distribution on page
28
8| PRODUCT DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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MECHANICAL SPECIFICATIONS
General
LG Single Zone Wall Mounted Extended
Piping systems are comprised of a single
outdoor unit connected to a single indoor
unit with a single refrigerant circuit.
These single zone systems can operate in
either cooling or heating mode. These
systems are capable of changing mode
within a maximum time of three (3) minutes
to ensure temperature can be properly
maintained.
LG components are manufactured in
a facility registered to ISO 9001 and
ISO 14001, which is a set of standards
applying to environmental protection
set by the International Organization for
Standardization (ISO). Wiring in these
units are in accordance with the National
Electrical Code (NEC).
Temperature Ranges
Outdoor Unit
Operating ranges for outdoor units of 14°F
to 118°F DB for cooling and -4°F to 65°F
WB for heating.
Indoor Unit
Operating ranges for indoor units of 53°F to
75°F WB for cooling and 60°F to 86°F DB
for heating.
Installing an optional Low Ambient Wind
Baffle Kit will allow operation down to 0°F in
cooling mode for all single zone systems.
Casing / Frame
Outdoor unit is constructed with pre-coated
metal (PCM).
Indoor unit is constructed of heavy duty
Acrylonitrile Butadiene Styrene (ABS) and
High Impact Polystyrene (HIPS) plastic.
Refrigerant System
The refrigeration system consists of a
single refrigeration circuit and uses R410A
refrigerant. The outdoor unit is provided with
factory installed components, including a
refrigerant strainer, four-way reversing valve,
electronic controlled expansion valve (EEV),
high and low side charging ports, service
valves, and interconnecting piping.
Refrigeration Oil Control
Heat pump outdoor units have a centrifugal
oil separator and controls to ensure sufficient
oil supply is maintained, and that oil does
not travel with the refrigerant.
Compressors
The outdoor unit is equipped with one
hermetic digitally controlled inverter driven
twin rotary compressor to modulate capacity
(modulation in 1 Hz increments).
Frequency ranges for the outdoor units are
as follows:
LSU243HLV3: 10 Hz ~ 70 Hz for Cooling;
10 Hz ~ 100 Hz for Heating.
LSU303HLV3: 10 Hz ~ 60 Hz for Cooling;
10 Hz ~ 90 Hz for Heating.
LSU363HLV3: 10 Hz ~ 64 Hz for Cooling;
10 Hz ~ 90 Hz for Heating.
Overcurrent protection and vibration isolation
are integrated with the compressor.
Outdoor Unit Coil
Heat pump outdoor unit coils are made of
a nonferrous construction with louvered
fins on copper tubing, and are protected
with an integral coil guard. Coil fins have a
factory applied corrosion resistant GoldFin
TM
material with hydrophilic coating. Outdoor
units include factory-installed drain pan
heaters.
Fans and Motors
The outdoor unit includes one direct fan
drive, variable speed variable speed
propeller type fan.
The Brushless Digitally Controlled (BLDC)
fan motor included inherent protection,
permanently lubricated bearings, and
variable speed with a maximum speed up to
950 rpm. Raised guards are provided to limit
contact with moving parts.
The outdoor unit has horizontal discharge
airflow.
Electrical
These units are available in 208-230V, 60
Hz, 1-phase power supply. These units are
capable of operating within voltage limits of
± 10% rated voltage, and include
overcurrent protection.
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 unit and
the outdoor unit is accomplished through 14
AWG four-core, stranded, shielded power /
communication cable.
HLV3 indoor units have built-in Wi-Fi and
can be controlled by LG’s Smart ThinQ™
app on a smartphone. 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.)
Figure 3: LS303HLV3 and LS363HLV3 Ex-
tended Piping Wall Mounted System.
Extended Piping Wall Mounted System
PRODUCT DATA | 9
Product Data
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GENERAL DATA
Extended Piping Wall Mounted System Pairing Table
The following tables show the available outdoor and indoor units, along with the factory provided controllers.
Table 1: Single Zone Wall Mounted Extended Piping System Pairing Table
Outdoor Unit Model Indoor Unit Model Controller
LSU243HLV3 LSN243HLV3 AKB74955602
LSU303HLV3
LSU363HLV3
LSN303HLV3
LSN363HLV3
AKB74955602
10 | PRODUCT DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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GENERAL DATA
([WHQGHG3LSLQJ:DOO0RXQWHG6\VWHP6SHFL¿FDWLRQV
Table 2: 6LQJOH=RQH([WHQGHG3LSLQJ:DOO0RXQWHG6SHFL¿FDWLRQV
System (Model) (Indoor Unit / Outdoor Unit)
LS243HLV3
(LSN243HLV3/LSU243HLV3)
LS303HLV3
(LSN303HLV3/LSU303HLV3)
LS363HLV3
(LSN363HLV3/LSU363HLV3)
Cooling Capacity
1
(Min/Rated/Max) (Btu/h)
3,070 ~ 22,000 ~ 30,000 3,070 ~ 30,000 ~ 34,000 3,070 ~ 33,000 ~ 34,000
Cooling Power Input
1
(Rated) (kW)
1.69 2.66 3.30
Heating Capacity (Min/Rated/Max) (Btu/h)
3,070 ~ 26,000 ~ 36,200 3,070 ~ 32,400 ~ 38,900 3,070 ~ 35,200 ~ 38,900
Heating Power Input
1
(Rated) (kW)
2.08 2.75 3.12
COP
12.50 11.80 11.30
Maximum Heating Capacity (Btu/h)
Outdoor 17°F (WB)/Indoor 70°F (DB)
27,360 (105%) 32,500 (100%) 35,740 (102%)
Outdoor 5°F (WB)/Indoor 70°F (DB)
23,700 (91%) 28,080 (88%) 30,890 (88%)
Outdoor 0°F (WB)/Indoor 70°F (DB)
22,710 (87%) 26,180 (81%) 28,800 (82%)
Outdoor -4°F (WB)/Indoor 70°F (DB)
21,170 (81%) 24,390 (75%) 26,820 (76%)
EER
13.00 11.30 10.00
SEER
21.50 20.00 18.50
HSPF
12.00 11.50 11.00
Power Supply V, Ø, Hz
2
208-230/60/1
Outdoor Unit Operating Range
3
Cooling (°F DB)
14 to 118
Heating (°F WB)
-4 to +65
Indoor Unit Operating Range
Cooling (°F WB)
53 to 75
Heating (°F DB)
60 to 86
Unit Data
Refrigerant Type
4
R410A
Refrigerant Control
EEV
IDU Sound Pressure Level dB(A) (Cooling) (H/M/L/SL)
5
49 / 44 / 40 / 30 51 / 47 / 43 / 33 51 / 47 / 43 / 33
ODU Sound Pressure Level dB(Cooling/Heating) (A)
5
55 / 56 55 / 58 55 / 58
Unit Weight (lbs.)
IDU (Net/Shipping)
36.6 / 44.5 40.8 / 48.9 40.8 / 48.9
ODU (Net/Shipping)
135.4 / 147.7 147.9 / 160.3 147.9 / 160.3
Power Wiring / Communications Cable (No. x AWG)
6
4 x 14 4 x 14 4 x 14
Compressor
Compressor (Qty.)
Twin Rotary (1) Twin Rotary (1) Twin Rotary (1)
Fan
IDU Type x Qty.
Cross Flow Fan (1)
ODU Type x Qty.
Propeller (1)
Motor / Drive
Brushless Digitally Controlled / Direct
Airflow Rate
IDU (Cooling) (Max. / H / M / L [CFM])
813 / 601 / 495 / 389 1,095 / 883 / 742 / 601 1,095 / 883 / 742 / 601
ODU (Max. [CFM])
2,119 2,295 2,295
Piping
Liquid (in.)
3/8 Flare 3/8 Flare 3/8 Flare
Vapor (in.)
5/8 Flare 5/8 Flare 5/8 Flare
Condensate Drain O.D. / I.D. (in.)
25/32, 19/32 25/32, 19/32 25/32, 19/32
Additional Refrigerant Charge (oz./ft.)
0.38 0.38 0.38
Pipe Length
7
(Minimum / Maximum) (ft.)
9.8 / 164.0 9.8 / 164.0 9.8 / 164.0
Piping Length
7
(no add’l refrigerant, ft.)
24.6 24.6 24.6
Max. Elevation Difference (ft.)
98.4 98.4 98.4
EEV: Electronic Expansion Valve IDU: Indoor Unit ODU: Outdoor Unit
This unit comes with a dry helium charge.
This data is rated 0 ft above sea level with 24.6 of refrigerant line per indoor unit and a 0 ft level
difference outdoor and indoor units.
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).
Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 59ºF wet
bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
1
Power Input is rated at high speed.
2
Power wiring to the ODU is field supplied, solid or stranded, and must comply with the applicable local
and national codes.
3
Low Ambient Wind Baffle Kit (sold separately) allows operation down to 0°F in cooling mode.
4
Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or destroy R410A
refrigerant according to applicable regulations (40 CFR Part 82, Subpart F) under section 608 of CAA.
5
Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745.
6
All communication / connection (power) cable from the outdoor unit to the indoor unit is field supplied
and must be a minimum of four-conductor, 14 AWG, stranded, shielded or unshielded (if shielded, it
must be grounded to the chassis of the outdoor unit only), and must comply with applicable local and
national codes. For detailed electrical information, please refer to electric characteristics on page 11.
7
Piping lengths are equivalent.
PRODUCT DATA | 11
Product Data
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ELECTRICAL DATA
Nominal
Tons
Unit Model
Number
Hertz Voltage
Voltage Range
(Min. to Max.)
MCA MOP
Compressor
Qty.
Compressor Motor
RLA
Outdoor Fan
Motor
Indoor Fan
Motor
Cooling Heating W FLA W FLA
2 LS243HLV3
60 208 - 230 187 - 253
19.0 30 1 14.41 14.41 124 0.4 58 0.5
2-1/2 LS303HLV3 23.0 30 1 15.1 15.1 124 0.25 110 0.5
2-3/4 LS363HLV3 23.0 30 1 15.1 15.1 124 0.25 110 0.5
Table 3: 208-230V, 60Hz, 1-Phase Single-Zone Extended Piping Wall-Mounted Electrical Data.
Voltage tolerance is ±10%.
Maximum allowable voltage unbalance is 2%.
MCA = Minimum Circuit Ampacity.
Maximum Overcurrent Protection (MOP) is calculated as follows: (Largest motor FLA x 2.25) + (Sum of
other motor FLA) rounded down to the nearest standard fuse size.
RLA = Rated Load Amps.
FLA = Full Load Amps.
Extended Piping Wall Mounted Systems
12 | PRODUCT DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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FUNCTIONS, CONTROLS, OPTIONS
Table 4: Indoor Units—Functions, Controls and Options.
Indoor Unit Type LS243HLV3 LS303HLV3 LS363HLV3
$LUÀRZ
Air Supply Outlet
111
Airflow Direction Control (Left / Right)
5 Steps 5 Steps 5 Steps
Airflow Direction Control (Up / Down)
6 Steps 6 Steps 6 Steps
Auto Swing (Left / Right)
¥¥¥
Auto Swing (Up / Down)
¥¥¥
Fan Speed Airflow Steps (Fan / Cool / Heat)
6 / 6 / 6 6 / 6 / 6 6 / 6 / 6
Natural Wind (Auto Wind)
¥¥¥
Jet Cool / Jet Heat (Power Wind)
¥¥ ¥¥ ¥¥
Comfort Air
¥¥¥
Air Purifying
Washable Anti-Bacteria Prefilter
1
¥¥¥
Deodorizing Filter
XXX
Plasma
XXX
Micro Dust Filter
XXX
Allergy Filter
XXX
Functions
Hot Start
¥¥¥
Self Diagnostics
¥¥¥
Defrost
¥¥¥
Dry (Dehumidification Operation)
¥¥¥
Auto Changeover
¥¥¥
Auto Cleaning (Coil Dry)
¥¥¥
Auto Restart
¥ ¥ ¥
Child Lock (Applicable with Wired Controller)
ooo
Forced Operation
¥¥¥
Sleep Mode
¥+RXU ¥+RXU ¥+RXU
Timer 24 hour (On / Off)
¥¥¥
Weekly Timer (Applicable with Wired Controller)
ooo
Two Thermistor Control
ooo
Low Ambient
¥ ¥ ¥
Overheating Protection
¥¥¥
Low Heating
¥¥¥
Smart Diagnosis
¥¥¥
Indoor Display Type
Number Display Number Display Number Display
Indoor Unit Display Light
On / Off On / Off On / Off
Energy Saving
¥¥¥
Drain Pan Heater
¥¥¥
Controllers
Wireless Handheld Remote Controller
¥$.%
Programmable Controllers (MultiSITE CRC1 / CRC1+)
o (PREMTBVC0 / PREMTBVC1)
Simple Remote Controller
o (PREMTC00U)
Premium Remote Controller
o (PREMTA000)
Dry Contact
o (PDRYCB100 / 300 / 400)
Network Solution (LGAP)
ooo
Central
Controllers /
Integration
Solutions
AC Smart 5
o (PACS5A000)
ACP 5
o (PACP5A000)
PI-485
o (PMNFP14A1)
MultiSITE Communications Manager
o (PBACNBTR0A)
MultiSITE VM3
o (PBACNBTR1B)
Special
Functions
Wi-Fi Module (Built In)
¥¥¥
Water Level Sensor Connection (for Optional AG-9300-LG)
ooo
Wind Baffle Kit
o (ZLABGP04A)
Other
Mode Lock
Cooling Only or Heating Only
Temperature Control
Thermistor
Smart Inverter Monitoring System (SIMs)
o (PSWMOZ3)
1
Primary washable filters. ¥ 6WDQGDUGIHDWXUH
o = Optional accessory (must be purchased separately)
X = Not available
• When Dry Contact Mode active, Wi-Fi Function can not be used.
• When changing from Wi-Fi mode to dry contact mode, normal operation resumes in approximately 3 minutes.
PRODUCT DATA | 13
Product Data
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OUTDOOR UNIT DIMENSIONS
LSU243HLV3, LSU303HLV3, LSU363HLV3
Unit : Inch (mm)
Drain Hole 5-Ø13/16 (20)
6-17/32 (166)
15-7/16 (392)
1-1/32 (26)
13 (330)
1-9/16 (40)
Ø22-1/8 (562)
2-17/32 (64)
32-3/4 (832)
5-13/16 (148)
3-9/32 (83)
5-9/16 (141)
15/16 (24)
13-7/32 (336)
24-13/32 (620)
14-3/16 (360)
15-11/32 (390)
25°
14°14°
3-5/32 (80)
Vapor Pipe Conn.
(Flare Joint)
Service Valve Cover
Power / Comm.
Cable Holes
Control
Box
Air Outlet
Drain Hole 5-Ø13/16 (20)
6-17/32 (166)
15-7/16 (392)
1-1/32 (26)
37-13/32 (950)
13 (330)
1-9/16 (40)
Ø22-1/8 (562)
2-17/32 (64)
32-3/4 (832)
5-13/16 (148)
3-9/32 (83)
5-9/16 (141)
15/16 (24)
13-7/32 (336)
24-13/32 (620)
14-3/16 (360)
15-11/32 (390)
25°
14°14°
3-5/32 (80)
Liquid Pipe Conn.
(Flare Joint)
Sump Heater
14 | PRODUCT DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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d
e
a
b
c
A
D
B
C
Figure 4: Center of Gravity and Corner Weight Dimensions Diagram.
OUTDOOR UNIT CENTER OF GRAVITY /
CORNER WEIGHT
Model
Weight (lb.) Center of Gravity (inch) Leg (inch) Corner Weight (lb.)
Shipping Net a b c d e A B C D
LSU243HLV3 147.7 135.4 23-7/32 12-19/32 5-29/32 24-13/32 14-3/16 18.6 24.2 49.1 43.5
LSU303HLV3, LSU363HLV3 160.3 147.9 23-7/32 12-19/32 5-29/32 24-13/32 14-3/16 20.3 26.5 53.7 47.4
Table 5: Center of Gravity and Corner Weight Dimensions.
PRODUCT DATA | 15
Product Data
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INDOOR UNIT DIMENSIONS
LSN243HLV3
Unit: Inch (mm)
Decoration Cover
Drain Hose
Connection
* If airflow direction control is available,
Cooling
Installation Plate
Heating
Up & Down Left & Right
[8-5/8 (219)]
Air Intake Hole
Left
45°
12°
22°
57°
47°
45°
2-5/8 (67)
7/16 (11)
15/32 (12)
2-3/8 (60)
41-23/32 (1060)
14-3/16 (360)
14-23/32 (374)
[2-23/32 (69)]
Air Outlet Hole
[37-9/16 (954)]
Air Intake Hole
Rear
Rear
Right
[35-13/32 (899)]
Air Intake Hole
Bottom
2-1/16 (52)
3-15/16 (100)
41-23/32 (1060)
Approx. 11-25/32 (299) to liquid pipe
Approx. 14-1/8 (359) to gas pipe
In Case of Left Side Piping
Unit Outline
Connecting Gas/Liquid Pipe
14-23/32 (374)
2-5/32 (55)
4-21/32 (118)
1-17/32 (47)
2-3/8 (60)
2-15/32 (63)
1-3/32 (50.2)
1-1/16 (26.2)
2-7/16 (61.5)
1-7/16(33.5)
1/4(6) x 1/8(3)
1/8(3) x 1/4(6)
5/8(15.3)
1-9/32(32.7)
5-31/32 (152)
1-1/4 (31)
2-13/32(61)
41-23/32 (1060)
14-29/32 (379)
7-27/32 (199)
8-7/16 (214)
6-5/16 (160)
2 (51)
9-1/32 (229)
Ø2-9/16 (65)
2-3/4 (70)
14-23/32 (374)
2-3/4 (70)
2-3/4 (70)
12-1/8 (308)
2 (51)
4-11/32 (110)
3-3/8 (86)
5-25/32 (147)
Ø2-9/16 (65)
Unit Bottom Line
Unit Outline
Fixing the Installation Plate, Drilling Hole
10-7/16 (265)
2-3/8 (60)
15/32 (12)
2-5/8 (67)
7/16 (11)
Air Intake
Air Outlet
5-3/16 (132)
5-3/16 (132)
2-3/4 (70)
Refrigerant,
Drain Pipe
and Cable
Routing Hole
Refrigerant,
Drain Pipe and
Cable Routing
Hole
Display / Remote Controller
Signal Receiver
Refrigerant,
Drain Pipe and
Cable Routing Hole
Terminal Block for
Power Supply and
Communication
16 | PRODUCT DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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INDOOR UNIT DIMENSIONS
LSN303HLV3, LSN363HLV3
Unit: Inch (mm)
47-1/4 (1200)
2-3/4 (70)
14-29/32 (379) 8 (203)
8-19/32 (218)
6-13/32 (163)
2 (51)
9-3/16 (233)
14-23/32 (374)
Ø2-9/16 (65)
9-11/16 (246)
10-9/16 (68)
12-1/8 (308)
2-3/4 (70)
Ø2-9/16 (65)
8-5/8 (219)
2 (51)
11-5/32 (283)
Decoration Cover
Display / Remote
Controller Signal
Receiver
Terminal Block
for Power
Supply and
Communication
Drain Hose Connection
* If airflow direction control is available,
Cooling
Installation Plate
Heating
Up & Down Left & Right
[8-5/8 (219)]
Air Intake Hole
Left
45°
12°
22°
57°
47°
45°
2-3/8 (60)
15/32 (12)
7/16 (11)
2-5/8 (67)
47-1/4 (1200)
14-3/16 (360)
14-23/32 (374)
[2-23/32 (69)]
Air Outlet Hole
[43-3/16 (1097)]
Air Intake Hole
Rear
Rear
Right
10-7/16 (265)
2-5/8 (67)
7/16 (11)
15/32 (12)
2-3/8 (60)
Air Intake
Air Outlet
47-1/4 (1200)
Approx. 17-1/8 (435) to liquid pipe
Approx.19-1/2 (495) to gas pipe
In Case of Left Side Piping
Unit Outline
Connecting Gas/Liquid Pipe
14-23/32 (374)
2-5/32 (55)
4-27/32 (123)
2-3/8 (60)
2-9/32 (58)
4-1/16 (103)
1-31/32 (50)
[40-19/32 (1031)]
Air Intake Hole
Bottom
Unit Bottom Line
Unit Outline
Fixing the Installation Plate, Drilling Hole
66
2-19/32 (66)
1-3/32 (50.2)
1-1/16 (26.2)
2-7/16 (61.5)
1-7/16(33.5)
1/4(6) x 1/8(3)
1/8(3) x 1/4(6)
5/8(15.3)
1-9/32(32.7)
5-31/32 (152)
1-1/4 (31)
2-13/32(61)
Refrigerant,
Drain Pipe
and Cable
Routing Hole
Refrigerant,
Drain Pipe
and Cable
Routing Hole
Refrigerant,
Drain Pipe
and Cable
Routing Hole
PRODUCT DATA | 17
Product Data
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INDOOR UNIT ACOUSTIC DATA
Figure 5: Extended Piping Wall Mounted
Indoor Unit Sound Level Measurement
Location.
2.6 feet
(0.8 m)
3.3 feet (1 m)
Microphone
Model
Cooling Heating
HMLHML
LSN243HLV3 49 44 40 49 44 40
LSN303HLV3 51 47 43 51 47 43
LSN363HLV3 51 47 43 51 47 43
Table 6: Extended Piping Wall Mounted Indoor Unit Sound Pressure Data.
• Measurements are taken 3.3 feet (1 m) away from the front of the unit.
• Sound pressure levels are measured in dB(A) with a tolerance of ±1.
• Reference acoustic pressure 0dB=20μPa.
• Data is valid at nominal operation conditions. Operating conditions are assumed to be standard.
• Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745, and may
be different according to the test condition or equipment.
• Sound level will vary depending on a range of factors including the construction (acoustic ab-
sorption coefficient) of a particular room in which the unit was installed.
LSN243HLV3
Cooling Heating
Octave Band Sound Pressure Level
G% ȝ3D
Octave Band Center Frequency (Hz
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Ŷ High
Ɣ Low
Ÿ Middle
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 Sound Pressure Level
G% ȝ3D
Octave Band Center Frequency (Hz
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Ŷ High
Ɣ Low
Ÿ Middle
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
Figure 6: Sound Pressure Levels for LSN243HLV3 Indoor Units.
Indoor Unit Sound Pressure Measurement / Sound Pressure Levels
LSN243HLV3 Sound Pressure Levels
Extended Piping Wall Mounted Systems
18 | PRODUCT DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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Figure 7: Sound Pressure Levels for LSN303HLV3 Indoor Units.
INDOOR UNIT ACOUSTIC DATA
LSN363HLV3
gnitaeHgnilooC
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Ŷ High
Ɣ Low
Ÿ Middle
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 Sound Pressure LevelG% ȝ3D
Octave Band Center Frequency (Hz
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Ŷ High
Ɣ Low
Ÿ Middle
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 Sound Pressure LevelG% ȝ3D
Octave Band Center Frequency (Hz
LSN303HLV3
gnitaeHgnilooC
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Ŷ High
Ɣ Low
Ÿ Middle
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 Sound Pressure Level
G% ȝ3D
Octave Band Center Frequency (Hz
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Ŷ High
Ɣ Low
Ÿ Middle
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 Sound Pressure Level
G% ȝ3D
Octave Band Center Frequency (Hz
LSN303HLV3 and LSN363HLV3 Sound Pressure Levels
Extended Piping Wall Mounted Systems
Figure 8: Sound Pressure Levels for LSN363HLV3 Indoor Units.
PRODUCT DATA | 19
Product Data
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OUTDOOR UNIT ACOUSTIC DATA
Model
Cooling Heating
HH
LSU243HLV3 55 56
LSU303HLV3 55 58
LSU363HLV3 55 58
Table 7: Extended Piping Wall Mounted Outdoor Unit Sound Pressure Data.
Figure 9: Extended Piping Wall Mounted Outdoor Unit Sound Level
Measurement Location.
3.3 feet (1 m)
Center of
Outdoor Unit
Figure 10: Sound Pressure Levels for LSU243HLV3 Outdoor Units.
• Measurements are taken 3.3 feet (1 m) away from the front of the
unit.
• Sound pressure levels are measured in dB(A) with a tolerance of
±1.
• Data is valid at nominal operation conditions. Operating conditions
are assumed to be standard.
• Reference acoustic pressure 0dB=20μPa.
• Sound pressure levels are tested in an anechoic chamber under
ISO Standard 3745, and may be different according to the test
condition or equipment.
• Sound level will vary depending on a range of factors including the
construction (acoustic absorption coefficient) of a particular room in
which the unit was installed.
LSU243HLV3
Cooling Heating
Octave Band Sound Pressure Level
G% ȝ3D
Octave Band Center Frequency (Hz
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Front
Back
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 Sound Pressure Level
G% ȝ3D
Octave Band Center Frequency (Hz
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Front
Back
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
Outdoor Unit Sound Pressure Measurement / Sound Pressure Levels
LSU243HLV3 Sound Pressure Levels
Extended Piping Wall Mounted Systems
20 | PRODUCT DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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LSU303HLV3
Cooling Heating
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Ɣ
Ÿ Front
Back
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 Sound Pressure Level
G% ȝ3D
Octave Band Center Frequency (Hz
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Front
Back
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 Sound Pressure LevelG% ȝ3D
Octave Band Center Frequency (Hz
LSU363HLV3
Cooling Heating
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Ɣ
Ÿ Front
Back
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 Sound Pressure Level
G% ȝ3D
Octave Band Center Frequency (Hz
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Front
Back
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 Sound Pressure Level
G% ȝ3D
Octave Band Center Frequency (Hz
Figure 11: Sound Pressure Levels for LSU303HLV3 Outdoor Units.
OUTDOOR UNIT ACOUSTIC DATA
Extended Piping Wall Mounted Systems
LSU303HLV3 and LSU363HLV3 Sound Pressure Levels
Figure 12: Sound Pressure Levels for LSU363HLV3 Outdoor Units.
PRODUCT DATA | 21
Product Data
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REFRIGERANT FLOW DIAGRAMS
LSU/LSN243HLV3, LSU/LSN303HLV3, LSU/LSN363HLV3
Thermistor. Description PCB Connector
TH1
Indoor Air Temperature Thermistor CN-TH1 (Indoor)
TH2
Evaporator Temperature Thermistor CN-TH3 (Indoor)
TH3
Water Level Sensor (Optional) CN-TH2 (Indoor)
TH4
Outdoor Air Temperature Thermistor
CN-TH1 (Outdoor)
TH5
Condenser Temperature Thermistor
TH6
Discharge Pipe Temperature Thermistor CH-TH2 (Outdoor)
Table 8: LSN / LSU243-303-363HLV3 Thermistor Details.
Table 9: LSN / LSU243-303-363HLV3 Refrigerant Piping Sizes.
Appendix
Heat Exchanger
M
Propeller Fan
M
Cross Flow Fan
Compressor
Accumulator
(4 Way Valve)
EEV
(Electronic
Expansion Valve)
Capillary Tube
2-Way Valve
3-Way Valve
Temperature
Sensor
Pressure Sensor
Pressure Switch
Check Valve
Flare Joint
Muffler
Strainer
Reversing Valve
Field Pipin g
(Copper Tubing)
Field Piping
(Copper Tubing)
M
M
Heat
Exchanger
(Evaporator)
Heat
Exchanger
(Condenser)
Compressor
Valve
Reversing
Indoor Unit Outdoor Unit
: Cooling
: Heating
EEV
TH1
TH4
TH5
TH6
Liquid Side
Vapor Side
TH2
Accumulator
3-Way Valve
3-Way Valve
TH3
Figure 13: LSN / LSU243-303-363HLV3 Refrigerant Piping Sizes.
Model No. Vapor (Inch [mm]) Liquid (Inch [mm])
LS243HLV3, LS303HLV3, LS363HLV3 Ø5/8 (Ø15.88) Ø3/8 (Ø9.52)
Refrigerant Flow Diagram for Extended Piping Wall Mounted Systems
22 | PRODUCT DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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LSN243HLV3, LSN303HLV3, LSN363HLV3
INDOOR UNIT WIRING DIAGRAM
01-2020
Wiring Diagram for Extended Piping Wall Mounted Indoor Units
PRODUCT DATA | 23
Product Data
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LSU243HLV3, LSU303HLV3, LSU363HLV3
OUTDOOR UNIT WIRING DIAGRAM
01-2020
Wiring Diagram for Extended Piping Wall Mounted Outdoor Units
24 | PRODUCT DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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ELECTRICAL CONNECTIONS
• Terminal screws will become loose during transport. Properly tighten the terminal connections during installation or risk electric shock, physi-
cal injury, or death.
• Loose wiring will cause unit to malfunction, overheat, and catch fire, resulting in severe injury or death.
• Terminal screws will loosen during transport. Properly tighten the terminal connections during installation or risk equipment malfunction or
property damage.
• Loose wiring will cause unit malfunction, the wires to burnout or the terminal to overheat and catch fire. There is a risk of equipment malfunc-
tion or property damage.
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.
WARNING
General Power Wiring / Communications Cable Guidelines
• Follow manufacturer’s circuit diagrams displayed on the inside of the control box cover.
• Confirm power source specifications.
• Properly ground the outdoor unit and the indoor unit per National Electrical Code (NEC) and local codes.
• Connect the wiring firmly so that the wires cannot be easily pulled out.
• Confirm that the electrical capacity is sufficient.
• Power supply to the outdoor unit must be selected based on NEC and local codes. Maximum allowable voltage fluctuation ±10% or name-
plate rated value.
• It is recommended 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.
• Any openings where the field wiring enters the cabinet must be completely sealed.
Power Supply / Power Wiring
• LG Single Zone Extended Piping systems operate at 1Ø, 208-230V, 60Hz.
• Power wiring / power wiring gauge to the outdoor unit(s) must be solid or stranded, and must comply with all National Electrical Code
(NEC), UL, and local electrical codes.
• The indoor unit is powered by the outdoor unit. See the next page for communication / connection (power) cable specifications from the
outdoor unit to the indoor unit.
• Ground wire must be longer than the common power / communication wires.
• Connect the wiring firmly so the wires cannot be easily pulled out.
• Always match color codes of each wire and follow wiring diagram.
•
Do not install power wiring to the outdoor unit and the communication / connection (power) cable to the indoor unit in the same conduit.
Use separate conduits.
Figure 14: LS243HLV3 General Power / Communications System Sche-
matic.
Figure 15: LS303HLV3 and LS363HLV3 General Power / Communica-
tions System Schematic.
Indoor Unit
Outdoor Unit
Ground Wiring
Power Supply
Circuit Breaker
Indoor Unit
Outdoor Unit
Ground Wiring
Power Supply
Circuit Breaker
PRODUCT DATA | 25
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ELECTRICAL CONNECTIONS
Communication / Connection (Power) Cable Specifications from Outdoor
Unit to Indoor Unit
Figure 16: Typical Single Zone Outdoor Unit to Indoor Unit Wiring and
Communications Cable Diagram For Wiring Lengths Up to 130 Feet.
Communication / Connection
(Power), Ground Cable
From Outdoor Unit
To Indoor Unit
13/16"
GN/YL
GN/YL = (Ground, Yellow)
7/16" ± 1/8"
• For communication / connection (power) wires between the Single
Zone outdoor unit and the indoor unit for lengths up to 130 feet,
use a minimum 14 gauge, four (4) conductor, stranded, shielded
or unshielded wire. If shielded, the wire must be grounded to the
chassis at the outdoor unit only.
• When the communication / connection (power) wires between the
indoor unit and outdoor unit is GREATER THAN 130 feet, use:
• A two (2) conductor wire for power.
• A two (2) conductor wire for communication / ground.
• Separate the power AT LEAST two (2) inches away from the
communication / ground wire.
• All wiring is still minimum 14 gauge, stranded, shielded, or un-
shielded as cited above.
• Insulation material as required by local code.
• Firmly attach the cable; provide slack but secure in a way to pre-
vent external forces from being imparted on the terminal block.
• Wiring must be completed without splices.
• Always verify the communication cable is connected to a communications terminal on the Single Zone Extended Piping unit. Never apply
line voltage power to the communication cable connection. If contact is made, the PCBs will be damaged.
• The shield of the communications cable connecting the outdoor unit to the indoor unit must be grounded only to the outdoor unit frame.
• Tie the shield of each cable segment together using a wire nut at the indoor unit. Maintain polarity throughout the communication network.
• Position the incoming power to the outdoor unit away from the power / communications cables from the outdoor unit to the indoor unit.
•
Never use a common multiple-core communications cable.
All power wiring and communication cable installation must be performed
by trained service providers working in accordance with local, state, and
National Electrical Code (NEC) / UL / ETL federal regulations related to
electrical equipment and wiring, and following the manufacturer product
diagrams, requirements, and instructions in this manual. Failure to do so
will lead to electric shock which can cause physical injury or death.
Figure 17: Single Zone Outdoor Unit to Indoor Unit Wiring and Com-
munications Cable Diagram For Wiring Lengths GREATER THAN 130
Feet.
Indoor Unit
Terminal
Power Supply
1 Phase, 208-230V
Connecting
Cable
Grounding Line
Grounding Line
Outdoor Unit
Terminal
Figure 19: HLV3 Power / Communication System Diagram For Wiring
Lengths GREATER THAN 130 Feet.
Indoor Unit
Terminal
Power Supply
1 Phase, 208-230V
Connecting Cable
Grounding Line
Grounding Line
Outdoor Unit
Terminal
Figure 18: Typical HLV3 Power / Communication System Diagram For
Wiring Lengths Up to 130 Feet.
.
Two-Conductor
Power Cable
GN/YL
GN/YL = (Ground, Yellow)
Two-Conductor
Communication /
Ground Cable
Separate At Least
Two (2) Inches
13/16"
7/16" ± 1/8"
1(L1)
2(L2)
13/16"
7/16" ± 1/8"
3
26 | PRODUCT DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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ELECTRICAL CONNECTIONS
• Use a conduit for the communications cable / power wiring from the outdoor unit to the indoor unit.
• Make sure the communications cable / power wiring from the outdoor unit to the indoor unit, and the power wiring to the outdoor unit are
separate, otherwise, the outdoor unit operation will be affected by electrical noise and will malfunction or fail.
Controller Options
Single Zone Extended Piping Wall Mounted systems include a wireless handheld remote controller (Part
No. AKB74955602). Optional LG-suppled wired controllers are available. See “Functions, Controls,
Options”, or contact an LG representative for more information.
Wireless Handheld Remote Controller features:
• Display Panel: Displays operation conditions.
• On / Off Button: Turns system operation on and off.
• Mode Button: Selects the operation mode: Cooling, Heating, Auto, Dry (Dehumidification), or Fan.
• Temp Up / Down Buttons: Adjusts the desired room temperature in the different modes.
• Fan Speed Button: Sets desired fan speed.
• Reset: Initializes the handheld remote control settings.
Wired Controller Connections
Optional controllers (see “Functions, Controls, Options”, or contact an LG representative for more
information) can connect to the Extended Piping Wall Mounted indoor unit in one of two different ways:
1. LG Wired Remote Extension Cable with Molex plug (PZCWRC1; sold separately) that connects to the
CN-REMO terminal on the indoor unit PCB.
2. Field-supplied controller cable that connects to the indoor unit terminal block (must be at least UL2547
or UL1007, and at least FT-6 rated if local electric and building codes require plenum cable usage).
Communication cable from indoor unit to remote controller(s) is to be 22 AWG, 3-conductor, twisted,
stranded, unshielded. Wiring must comply with all applicable local and national codes.
Figure 20: AKB74955602 Wire-
less Handheld Remote Controller.
Display
Button
Screen
*
*
*
Reset
Verify the connectors are properly inserted.
C/BOX Cable (Plug type)
Extension cable
To Indoor Unit
CN-REMO
Terminal
TEMP
FAN
SPEED
OPER
MODE
:KHQXVLQJ¿HOGVXSSOLHGFRQWUROOHUFDEOHPDNHVXUHWRFRQQHFWWKH\HO-
low to yellow (communications wire), red to red (12V power wire), and
black to black (ground wire) terminals from the remote controller to the
indoor unit terminal blocks.
Figure 21: PZCWRC1 LG Wired Remote Extension Cable.
Figure 22: Wired Controller Connection (Example Only).
Indoor Unit Terminal
BR BL
RD
GR/YL
Figure 23: Schematic of a Single Zone System When the Wiring is GREATER THAN 130 Feet.
Power
Supply
1(L1) (Power, L)
2(L2) (Neutral, N)
G (Ground)
Power Flow: L ĺ N
Diagram is an example of communication and power
cables when the wiring is GREATER THAN 130 feet.
Terminals may be labeled differently depending on the model.
Outdoor and Indoor Unit a
pp
earances ma
y
var
y
de
p
endin
g
on the model.
Communication Flow: Comm ĺ N
3 (Communications)
GREATER THAN 130 feet: Must Separate Communications and Ground (G) Cable from the Power
(1[L1]) and Neutral (2[L2]) Cable at Least Two (2) Inches.
At Least Two (2) Inches
PRODUCT DATA | 27
Product Data
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4 to 5 feet
above the floor
NO
NO
NO
YES
Remote Controlle r
TEMP
Remote Controlle r
TEMP
R
e
m
o
t
e
C
o
n
t
r
o
l
l
e
r
T
E
M
P
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.
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.
ELECTRICAL CONNECTIONS
Figure 24: Proper Location for the Wired Controller.
28 | PRODUCT DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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AIR FLOW, STATIC PRESSURE, AND TEMPERATURE
DISTRIBUTION
LSN243HLV3
Model Air Flow Rate (CFM) Static Pressure (in. WG)
LSU243HLV3 2,119 0.0409
LSU303HLV3, LSU363HLV3 2,295 0.0480
Table 10: Extended Piping Wall Mounted Outdoor Unit Air Flow Rate and Static Pressure.
Cooling
Temperature [°C (°F)]
1
Air Velocity [m/s (ft./s)]
0
0
10
2
2468
m
m
0
ft.
6.68.23 13.119.726.2
1
0
0
10
2
2468
m
3.3
m ft.
0
6.6
ft.
3.3
0
6.6
06.6
ft.
1.318.23 19.726.2
0
Air Velocity [m/s (ft./s)]
2
m
40168
m
1
0
1
2
3
4
3
2
4
5
5
0
Air Velocity [m/s (ft./s)]
201468
m
1
0
1
2
3
4
3
2
4
5
5
06.6
ft.
1.318.23 19.726.2 06.68.23 13.119.726.2
m
ft.
ft.
3.3
0
3.3
6.6
9.8
13.1
9.8
6.6
13.1
16.4
16.4
3.3
3.3
6.6
9.8
13.1
9.8
6.6
13.1
16.4
16.4
ft.
0
Side View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Center
Fan Speed : Power
Top View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Center
Fan Speed : Power
Air Speed 0.3 m/s (1 ft./s) Range : 20.0 m (65.6 ft.)
Top View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Left & Right
Fan Speed : Power
2(6.6)
1(3.3)
0.5(1.6)
0.3(1)
28(82)
26(79)
22(72)
18(64)
0.3(1)
0.5(1.6)
1(3.3)
2(6.6)
2(6.6)
2(6.6)
1(3.3)
1(3.3)
0.5(1.6)
0.5(1.6)
0.3(1)
0.3(1)
PRODUCT DATA | 29
Product Data
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LSN243HLV3, continued.
Heating
Temperature [°C (°F)]
1
Air Velocity [m/s (ft./s)]
0
0
10
2
2468
m
m
0
ft.
6.68.2313.119.726.2
1
0
0
10
2
2468
m
3.3
m ft.
0
6.6
ft.
3.3
0
6.6
06.6
ft.
1.318.2319.726.2
0
Air Velocity [m/s (ft./s)]
2
m
40168
m
1
0
1
2
3
4
3
2
4
5
5
0
Air Velocity [m/s (ft./s)]
201468
m
1
0
1
2
3
4
3
2
4
5
5
06.6
ft.
1.318.23 19.726.2 06.68.23 13.119.726.2
m
ft.
ft.
3.3
0
3.3
6.6
9.8
13.1
9.8
6.6
13.1
16.4
16.4
3.3
3.3
6.6
9.8
13.1
9.8
6.6
13.1
16.4
16.4
ft.
0
Side View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Center
Fan Speed : Power
Top View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Center
Fan Speed : Power
Air Speed 0.3 m/s (1 ft./s) Range : 20.0 m (65.6 ft.)
Top View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Left & Right
Fan Speed : Power
2(6.6)
1(3.3)
0.5(1.6)
0.3(1)
24(75)
30(86)
32(90)
26(79)
22(72)
2(6.6)
1(3.3)
0.5(1.6)
0.3(1)
2(6.6)
2(6.6)
1(3.3)
1(3.3)
0.5(1.6)
0.5(1.6)
0.3(1)
0.3(1)
AIR FLOW, STATIC PRESSURE, AND TEMPERATURE
DISTRIBUTION
30 | PRODUCT DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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AIR FLOW, STATIC PRESSURE, AND TEMPERATURE
DISTRIBUTION
LSN303HLV3
Cooling
Temperature [°C (°F)]
1
Air Velocity [m/s (ft./s)]
0
0
10
2
2468
m
m
0
ft.
6.68.23 13.119.726.2
1
0
0
10
2
2468
m
3.3
m ft.
0
6.6
ft.
3.3
0
6.6
06.6
ft.
1.318.23 19.726.2
0
Air Velocity [m/s (ft./s)]
2
m
40168
m
1
0
1
2
3
4
3
2
4
5
5
0
Air Velocity [m/s (ft./s)]
201468
m
1
0
1
2
3
4
3
2
4
5
5
06.6
ft.
1.318.23 19.726.2 06.68.23 13.119.726.2
m
ft.
ft.
3.3
0
3.3
6.6
9.8
13.1
9.8
6.6
13.1
16.4
16.4
3.3
3.3
6.6
9.8
13.1
9.8
6.6
13.1
16.4
16.4
ft.
0
Side View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Center
Fan Speed : Power
Top View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Center
Fan Speed : Power
Air Speed 0.3 m/s (1 ft./s) Range : 20.0 m (65.6 ft.)
Top View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Left & Right
Fan Speed : Power
2(6.6)
1(3.3)
0.5(1.6)
0.3(1)
28(82)
26(79)
18(64)
22(72)
0.3(1)
0.5(1.6)
1(3.3)
2(6.6)
0.5(1.6)
0.5(1.6)
0.3(1)
0.3(1)
2(6.6)
2(6.6)
1(3.3)
1(3.3)
PRODUCT DATA | 31
Product Data
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AIR FLOW, STATIC PRESSURE, AND TEMPERATURE
DISTRIBUTION
LSN303HLV3, continued.
Heating
Temperature [°C (°F)]
1
Air Velocity [m/s (ft./s)]
0
0
10
2
2468
m
m
0
ft.
6.68.23 13.119.726.2
1
0
0
10
2
2468
m
3.3
m ft.
0
6.6
ft.
3.3
0
6.6
06.6
ft.
1.318.2319.726.2
0
Air Velocity [m/s (ft./s)]
2
m
40168
m
1
0
1
2
3
4
3
2
4
5
5
0
Air Velocity [m/s (ft./s)]
201468
m
1
0
1
2
3
4
3
2
4
5
5
06.6
ft.
1.318.2319.726.2 06.68.23 13.119.726.2
m
ft.
ft.
3.3
0
3.3
6.6
9.8
13.1
9.8
6.6
13.1
16.4
16.4
3.3
3.3
6.6
9.8
13.1
9.8
6.6
13.1
16.4
16.4
ft.
0
Side View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Center
Fan Speed : Power
Top View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Center
Fan Speed : Power
Air Speed 0.3 m/s (1 ft./s) Range : 20.0 m (65.6 ft.)
Top View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Left & Right
Fan Speed : Power
2(6.6)
1(3.3)
0.5(1.6)
0.3(1)
24(75)
30(86)
26(79)
28(82)
2(6.6)
1(3.3)
0.5(1.6)
0.3(1)
2(6.6)
2(6.6)
1(3.3)
1(3.3)
0.5(1.6)
0.5(1.6)
0.3(1)
0.3(1)
32 | PRODUCT DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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AIR FLOW, STATIC PRESSURE, AND TEMPERATURE
DISTRIBUTION
LSN363HLV3
Cooling
Temperature [°C (°F)]
1
Air Velocity [m/s (ft./s)]
0
0
10
2
2468
m
m
0
ft.
6.68.23 13.119.726.2
1
0
0
10
2
2468
m
3.3
m ft.
0
6.6
ft.
3.3
0
6.6
06.6
ft.
1.318.2319.726.2
0
Air Velocity [m/s (ft./s)]
2
m
40168
m
1
0
1
2
3
4
3
2
4
5
5
0
Air Velocity [m/s (ft./s)]
201468
m
1
0
1
2
3
4
3
2
4
5
5
06.6
ft.
1.318.23 19.726.2 06.68.23 13.119.726.2
m
ft.
ft.
3.3
0
3.3
6.6
9.8
13.1
9.8
6.6
13.1
16.4
16.4
3.3
3.3
6.6
9.8
13.1
9.8
6.6
13.1
16.4
16.4
ft.
0
Side View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Center
Fan Speed : Power
Top View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Center
Fan Speed : Power
Air Speed 0.3 m/s (1 ft./s) Range : 20.0 m (65.6 ft.)
Top View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Left & Right
Fan Speed : Power
2(6.6)
1(3.3)
0.5(1.6)
0.3(1)
28(82)
26(79)
18(64)
22(72)
0.3(1)
0.5(1.6)
1(3.3)
2(6.6)
0.5(1.6)
0.5(1.6)
0.3(1)
0.3(1)
2(6.6)
2(6.6)
1(3.3)
1(3.3)
PRODUCT DATA | 33
Product Data
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AIR FLOW, STATIC PRESSURE, AND TEMPERATURE
DISTRIBUTION
LSN363HLV3, continued.
Heating
Temperature [°C (°F)]
1
Air Velocity [m/s (ft./s)]
0
0
10
2
2468
m
m
0
ft.
6.68.23 13.119.726.2
1
0
0
10
2
2468
m
3.3
m ft.
0
6.6
ft.
3.3
0
6.6
06.6
ft.
1.318.23 19.726.2
0
Air Velocity [m/s (ft./s)]
2
m
40168
m
1
0
1
2
3
4
3
2
4
5
5
0
Air Velocity [m/s (ft./s)]
201468
m
1
0
1
2
3
4
3
2
4
5
5
06.6
ft.
1.318.23 19.726.2 06.68.23 13.119.726.2
m
ft.
ft.
3.3
0
3.3
6.6
9.8
13.1
9.8
6.6
13.1
16.4
16.4
3.3
3.3
6.6
9.8
13.1
9.8
6.6
13.1
16.4
16.4
ft.
0
Side View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Center
Fan Speed : Power
Top View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Center
Fan Speed : Power
Air Speed 0.3 m/s (1 ft./s) Range : 20.0 m (65.6 ft.)
Top View
Discharge $QJOHÛ)URPWKHIORRU )
Vertical Louver : Left & Right
Fan Speed : Power
2(6.6)
1(3.3)
0.5(1.6)
0.3(1)
24(75)
30(86)
26(79)
28(82)
2(6.6)
1(3.3)
0.5(1.6)
0.3(1)
2(6.6)
2(6.6)
1(3.3)
1(3.3)
0.5(1.6)
0.5(1.6)
0.3(1)
0.3(1)
Cooling Capacity Data on page 35
Maximum Cooling Capacity Data on page 37
Heating Capacity Data on page 39
Maximum Heating Capacity on page 41
Equipment Selection Procedure on page 43
PERFORMANCE DATA
PERFORMANCE DATA | 35
Performance Data
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Table 11: LSN243HLV3 / LSU243HLV3 Cooling Capacities.
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity (kBtu/h)
SHC: Sensible Capacity (kBtu/h) PI: Power Input (kW) (includes compressor, indoor fan motor and
outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Low Ambient Wind Baffle Kit (sold separately) allows operation down to 0°F.
3. Direct interpolation is permissible.
Do not extrapolate.
Capacity as rated: 0 ft. above sea level with 24.6 ft. of refrigerant piping. 0 ft. level difference between
outdoor and indoor units.
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).
Outdoor Air
Temp. (°F DB)
Indoor Air Temperature (°F DB / °F WB)
64 / 53 68 / 57 72 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
0 13.32 10.35 0.66 16.66 11.02 0.78 19.99 11.69 0.90 24.16 12.53 1.05 26.66 13.03 1.14 22.25 14.21 0.93 19.30 15.00 0.79
5 13.07 10.20 0.69 16.34 10.86 0.81 19.61 11.52 0.94 23.70 12.35 1.10 26.15 12.84 1.19 21.82 14.01 0.97 18.93 14.78 0.83
7 13.16 10.29 0.70 16.45 10.96 0.82 19.74 11.63 0.95 23.86 12.46 1.11 26.33 12.96 1.20 21.97 14.14 0.98 19.06 14.92 0.83
10 13.29 10.44 0.71 16.62 11.11 0.84 19.95 11.79 0.97 24.10 12.63 1.13 26.60 13.14 1.22 22.20 14.33 1.00 19.26 15.12 0.85
14 13.47 10.62 0.72 16.84 11.31 0.85 20.22 12.00 0.99 24.43 12.86 1.15 26.96 13.38 1.25 22.50 14.59 1.02 19.52 15.40 0.87
23 14.46 11.41 0.71 17.40 12.14 0.86 20.33 12.88 1.01 24.00 13.80 1.20 26.20 14.36 1.31 23.06 15.66 1.04 20.96 16.53 0.87
25 14.69 11.59 0.73 17.56 12.30 0.88 20.43 13.02 1.02 24.02 13.91 1.20 26.18 14.45 1.31 23.31 15.83 1.06 21.40 16.75 0.89
30 15.25 12.03 0.79 17.97 12.70 0.92 20.68 13.36 1.05 24.08 14.19 1.22 26.11 14.68 1.32 23.94 16.25 1.10 22.50 17.30 0.95
35 15.82 12.48 0.84 18.38 13.09 0.96 20.94 13.70 1.09 24.13 14.46 1.24 26.05 14.91 1.33 24.58 16.67 1.14 23.60 17.85 1.02
40 16.39 12.93 0.89 18.79 13.48 1.01 21.19 14.04 1.12 24.19 14.73 1.26 25.99 15.15 1.34 25.21 17.09 1.19 24.70 18.39 1.08
45 16.96 13.38 0.95 19.20 13.88 1.05 21.44 14.38 1.15 24.24 15.00 1.28 25.93 15.38 1.35 25.85 17.51 1.23 25.79 18.94 1.15
50 17.52 13.82 1.00 19.61 14.27 1.09 21.69 14.72 1.18 24.30 15.27 1.30 25.86 15.61 1.36 26.48 17.94 1.27 26.89 19.49 1.21
55 18.09 14.27 1.05 20.02 14.66 1.13 21.95 15.06 1.21 24.36 15.55 1.31 25.80 15.84 1.37 27.12 18.36 1.31 27.99 20.03 1.27
60 18.66 14.72 1.11 20.43 15.06 1.18 22.20 15.40 1.24 24.41 15.82 1.33 25.74 16.07 1.38 27.75 18.78 1.36 29.09 20.58 1.34
65 18.49 14.59 1.16 20.17 15.00 1.23 21.85 15.41 1.30 23.95 15.92 1.38 25.21 16.23 1.43 27.21 18.79 1.41 28.55 20.49 1.40
70 18.32 14.45 1.22 19.91 14.94 1.28 21.50 15.42 1.35 23.48 16.02 1.42 24.67 16.38 1.47 26.68 18.80 1.47 28.02 20.41 1.47
75 18.15 14.32 1.27 19.65 14.88 1.33 21.14 15.43 1.40 23.01 16.12 1.47 24.14 16.54 1.52 26.14
18.81 1.53 27.48 20.32 1.54
80 17.98 14.19 1.33 19.39 14.81 1.39 20.79 15.44 1.45 22.55 16.22 1.52 23.60 16.69 1.56 25.61 18.82 1.59 26.94 20.24 1.61
85 17.81 14.05 1.39 19.12 14.75 1.44 20.44 15.45 1.50 22.08 16.33 1.56 23.07 16.85 1.60 25.07 18.83 1.65 26.40 20.15 1.68
90 17.64 13.92 1.44 18.86 14.69 1.49 20.09 15.46 1.55 21.62 16.43 1.61 22.53 17.00 1.65 24.53 18.84 1.71 25.87 20.07 1.75
95 17.47 13.79 1.50 18.60 14.63 1.55 19.74 15.47 1.60 21.15 16.53 1.66 22.00 17.16 1.69 24.00 18.85 1.77 25.33 19.98 1.82
100 17.01 13.43 1.52 18.17 14.31 1.57 19.34 15.19 1.62 20.79 16.29 1.68 21.66 16.95 1.72 23.58 18.55 1.79 24.87 19.62 1.84
105 16.56 13.06 1.54 17.75 13.98 1.59 18.94 14.91 1.64 20.42 16.06 1.71 21.31 16.75 1.74 23.17 18.25 1.82 24.41 19.26 1.87
110 16.10 12.70 1.57 17.32 13.66 1.62 18.54 14.62 1.67 20.06 15.82 1.73 20.97 16.54 1.77 22.76 17.95 1.84 23.95 18.89 1.89
115 15.53 12.25 1.59 16.70 13.18 1.64 17.88 14.12 1.69 19.35 15.28 1.75 20.24 15.99 1.79 21.98 17.35 1.87 23.14 18.26 1.92
118 15.18 11.98 1.60 16.34 12.89 1.65 17.49 13.81 1.70 18.93 14.96 1.76 19.80 15.65 1.80 21.52 16.99 1.88 22.66 17.88 1.93
PERFORMANCE DATA
Cooling Capacity
LS243HLV3, LS303HLV3
Table 12: LSN303HLV3 / LSU303HLV3 Cooling Capacities.
Outdoor Air
Temp. (°F DB)
Indoor Air Temperature (°F DB / °F WB)
64 / 53 68 / 57 72 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
0 18.16 14.83 1.03 22.71 15.79 1.22 27.26 16.76 1.41 32.94 17.96 1.65 36.35 18.68 1.79 30.34 20.37 1.46 26.32 21.50 1.24
5 17.82 14.62 1.08 22.28 15.57 1.28 26.74 16.52 1.47 32.31 17.70 1.72 35.66 18.41 1.87 29.75 20.08 1.53 25.82 21.19 1.30
7 17.94 14.76 1.09 22.43 15.71 1.29 26.92 16.67 1.49 32.54 17.87 1.74 35.90 18.58 1.89 29.96 20.27 1.54 26.00 21.39 1.31
10 18.12 14.96 1.11 22.66 15.93 1.31 27.20 16.90 1.51 32.87 18.11 1.77 36.27 18.84 1.92 30.27 20.54 1.57 26.26 21.68 1.33
14 18.37 15.23 1.13 22.97 16.22 1.34 27.57 17.20 1.55 33.31 18.44 1.81 36.76 19.18 1.96 30.68 20.91 1.60 26.62 22.07 1.36
23 19.72 16.35 1.12 23.72 17.41 1.35 27.72 18.47 1.58 32.73 19.79 1.88 35.73 20.58 2.05 31.44 22.45 1.64 28.58 23.70 1.36
25 20.03 16.61 1.15 23.94 17.64 1.38 27.86 18.66 1.60 32.76 19.95 1.89 35.69 20.71 2.06 31.79 22.69 1.66 29.18 24.01 1.40
30 20.80 17.25 1.23 24.50 18.20 1.44 28.21 19.15 1.65 32.83 20.34 1.92 35.61 21.05 2.07 32.65 23.30 1.73 30.68 24.80 1.50
35 21.58 17.89 1.32 25.06 18.76 1.51 28.55 19.64 1.70 32.91 20.73 1.95 35.52 21.38 2.09 33.52 23.90 1.79 32.18 25.58 1.60
40 22.35 18.53 1.40 25.62 19.33 1.58 28.89 20.12 1.75 32.98 21.12 1.97 35.44 21.71 2.11 34.38 24.50 1.86 33.68 26.37 1.70
45 23.12 19.18 1.48 26.18 19.89 1.64 29.24 20.61 1.80 33.06 21.51 2.00 35.35 22.04 2.12 35.25 25.11 1.93 35.17 27.15 1.80
50 23.90 19.82 1.57 26.74 20.46 1.71 29.58 21.10 1.85 33.14 21.90 2.03 35.27 22.38 2.14 36.11 25.71 1.99 36.67 27.93 1.90
55 24.67 20.46 1.65 27.30 21.02 1.78 29.93 21.58 1.90 33.21 22.29 2.06 35.18 22.71 2.16 36.98 26.31 2.06 38.17 28.72 2.00
60 25.45 21.10 1.73 27.86 21.59 1.84 30.27 22.07 1.95 33.29 22.68 2.09 35.10 23.04 2.17 37.84 26.92 2.13 39.67 29.50 2.10
65 25.21 20.91 1.82 27.50 21.50 1.93 29.79 22.09 2.03 32.65 22.82 2.16 34.37 23.26 2.24 37.11 26.93 2.22 38.94 29.38 2.20
70 24.98 20.72 1.91 27.15 21.41 2.01 29.31 22.10 2.11 32.02 22.97 2.24 33.64 23.49 2.31 36.38 26.95 2.31 38.20 29.26 2.31
75 24.75 20.53 2.00 26.79 21.32 2.09 28.83 22.12 2.19 31.38 23.11 2.31 32.91 23.71 2.38 35.65
26.97 2.40 37.47 29.14 2.42
80 24.52 20.34 2.09 26.44 21.24 2.18 28.35 22.14 2.27 30.75 23.26 2.38 32.19 23.93 2.45 34.92 26.98 2.50 36.74 29.01 2.53
85 24.29 20.15 2.18 26.08 21.15 2.26 27.87 22.15 2.35 30.11 23.40 2.45 31.46 24.15 2.52 34.19 27.00 2.59 36.01 28.89 2.64
90 24.05 19.96 2.26 25.72 21.06 2.35 27.39 22.17 2.43 29.48 23.55 2.53 30.73 24.38 2.59 33.46 27.01 2.68 35.27 28.77 2.74
95 23.82 19.77 2.35 25.37 20.98 2.43 26.91 22.18 2.50 28.84 23.69 2.60 30.00 24.60 2.66 32.72 27.03 2.77 34.54 28.65 2.85
100 23.20 19.25 2.39 24.78 20.51 2.47 26.37 21.78 2.54 28.34 23.36 2.64 29.53 24.30 2.70 32.16 26.60 2.81 33.91 28.13 2.89
105 22.58 18.73 2.42 24.20 20.05 2.50 25.82 21.37 2.58 27.85 23.02 2.68 29.06 24.01 2.74 31.60 26.17 2.85 33.29 27.61 2.93
110 21.95 18.21 2.46 23.61 19.58 2.54 25.28 20.96 2.62 27.35 22.68 2.72 28.60 23.71 2.78 31.03 25.74 2.89 32.66 27.09 2.97
115 21.17 17.56 2.49 22.78 18.90 2.57 24.38 20.24 2.65 26.39 21.91 2.74 27.60 22.92 2.80 29.98 24.87 2.93 31.56 26.17 3.01
118 20.70 17.17 2.50 22.28 18.49 2.58 23.85 19.80 2.66 25.82 21.45 2.76 27.00 22.44 2.82 29.34 24.35 2.95 30.90 25.63 3.03
Cooling Capacity Table for LS243HLV3 (LSU243HLV3 + LSN243HLV3)
Cooling Capacity Table for LS303HLV3 (LSU303HLV3 + LSN303HLV3)
36 | PERFORMANCE DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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Cooling Capacity
PERFORMANCE DATA
LS363HLV3
Table 13: LSN363HLV3 / LSU363HLV3 Cooling Capacities.
Outdoor Air
Temp. (°F DB)
Indoor Air Temperature (°F DB / °F WB)
64 / 53 68 / 57 72 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
0 19.98 15.52 1.28 24.98 16.53 1.52 29.99 17.53 1.75 36.24 18.79 2.05 39.99 19.54 2.22 33.37 21.31 1.81 28.95 22.49 1.54
5 19.60 15.30 1.34 24.50 16.29 1.59 29.41 17.28 1.83 35.54 18.52 2.14 39.23 19.27 2.33 32.73 21.01 1.90 28.40 22.17 1.61
7 19.73 15.44 1.36 24.67 16.44 1.60 29.61 17.44 1.85 35.79 18.69 2.16 39.50 19.44 2.35 32.96 21.20 1.92 28.60 22.38 1.63
10 19.94 15.65 1.38 24.93 16.67 1.63 29.92 17.68 1.88 36.16 18.95 2.20 39.90 19.71 2.39 33.29 21.50 1.95 28.89 22.69 1.65
14 20.21 15.93 1.41 25.26 16.97 1.66 30.32 18.00 1.92 36.65 19.29 2.24 40.44 20.07 2.44 33.74 21.88 1.99 29.28 23.09 1.69
23 21.69 17.11 1.39 26.09 18.22 1.68 30.50 19.32 1.97 36.00 20.71 2.33 39.30 21.54 2.55 34.58 23.49 2.03 31.44 24.80 1.69
25 22.03 17.38 1.43 26.34 18.45 1.71 30.65 19.53 1.99 36.03 20.87 2.35 39.26 21.67 2.56 34.96 23.75 2.07 32.10 25.13 1.74
30 22.88 18.05 1.53 26.95 19.04 1.79 31.03 20.04 2.06 36.12 21.28 2.38 39.17 22.02 2.58 35.92 24.38 2.15 33.75 25.95 1.86
35 23.73 18.72 1.64 27.57 19.63 1.88 31.40 20.55 2.12 36.20 21.69 2.42 39.08 22.37 2.60 36.87 25.01 2.23 35.40 26.77 1.99
40 24.58 19.39 1.74 28.18 20.22 1.96 31.78 21.06 2.18 36.28 22.09 2.45 38.98 22.72 2.62 37.82 25.64 2.31 37.04 27.59 2.11
45 25.44 20.07 1.84 28.80 20.82 2.04 32.16 21.57 2.24 36.37 22.50 2.49 38.89 23.07 2.64 38.77 26.27 2.40 38.69 28.41 2.23
50 26.29 20.74 1.95 29.41 21.41 2.13 32.54 22.07 2.30 36.45 22.91 2.53 38.80 23.41 2.66 39.72 26.90 2.48 40.34 29.23 2.36
55 27.14 21.41 2.05 30.03 22.00 2.21 32.92 22.58 2.37 36.53 23.32 2.56 38.70 23.76 2.68 40.67 27.53 2.56 41.99 30.05 2.48
60 27.99 22.08 2.16 30.65 22.59 2.29 33.30 23.09 2.43 36.62 23.73 2.60 38.61 24.11 2.70 41.63 28.17 2.64 43.64 30.87 2.61
65 27.74 21.88 2.27 30.25 22.50 2.40 32.77 23.11 2.53 35.92 23.88 2.69 37.81 24.34 2.79 40.82 28.18 2.76 42.83 30.74 2.74
70 27.48 21.68 2.38 29.86 22.40 2.50 32.24 23.13 2.62 35.22 24.03 2.78 37.01 24.57 2.87 40.02 28.20 2.87 42.02 30.61 2.87
75 27.23 21.48 2.49 29.47 22.31 2.60 31.72 23.14 2.72 34.52 24.18 2.87 36.21 24.81 2.96 39.21
28.21 2.99 41.22 30.49 3.01
80 26.97 21.28 2.60 29.08 22.22 2.71 31.19 23.16 2.82 33.82 24.34 2.96 35.40 25.04 3.04 38.41 28.23 3.10 40.41 30.36 3.14
85 26.72 21.08 2.71 28.69 22.13 2.81 30.66 23.18 2.92 33.12 24.49 3.05 34.60 25.27 3.13 37.61 28.25 3.22 39.61 30.23 3.28
90 26.46 20.88 2.82 28.30 22.04 2.91 30.13 23.19 3.01 32.42 24.64 3.14 33.80 25.51 3.21 36.80 28.26 3.33 38.80 30.10 3.41
95 26.21 20.68 2.93 27.90 21.95 3.02 29.60 23.21 3.11 31.73 24.79 3.23 33.00 25.74 3.30 36.00 28.28 3.45 38.00 29.97 3.54
100 25.52 20.14 2.97 27.26 21.46 3.06 29.00 22.79 3.16 31.18 24.44 3.28 32.49 25.43 3.35 35.38 27.83 3.50 37.31 29.43 3.59
105 24.84 19.60 3.01 26.62 20.98 3.11 28.40 22.36 3.21 30.63 24.09 3.33 31.97 25.12 3.40 34.76 27.38 3.55 36.62 28.89 3.64
110 24.15 19.05 3.06 25.98 20.49 3.15 27.80 21.93 3.25 30.09 23.73 3.38 31.46 24.81 3.45 34.14 26.93 3.60 35.93 28.34 3.69
115 23.29 18.37 3.09 25.06 19.77 3.19 26.82 21.17 3.29 29.03 22.93 3.41 30.36 23.98 3.49 32.97 26.02 3.64 34.72 27.39 3.74
118 22.77 17.96 3.11 24.50 19.34 3.21 26.24 20.72 3.31 28.40 22.44 3.43 29.70 23.48 3.51 32.27 25.48 3.66 33.99 26.81 3.77
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity (kBtu/h)
SHC: Sensible Capacity (kBtu/h) PI: Power Input (kW) (includes compressor, indoor fan motor and
outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Low Ambient Wind Baffle Kit (sold separately) allows operation down to 0°F.
3. Direct interpolation is permissible.
Do not extrapolate.
Capacity as rated: 0 ft. above sea level with 24.6 ft. of refrigerant piping. 0 ft. level difference between
outdoor and indoor units.
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).
Cooling Capacity Table for LS363HLV3 (LSU363HLV3 + LSN363HLV3)
PERFORMANCE DATA | 37
Performance Data
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Table 14: LSN243HLV3 / LSU243HLV3 Maximum Cooling Capacities.
PERFORMANCE DATA
Maximum Cooling Capacity
LS243HLV3, LS303HLV3
Max. Cooling Capacity Table for LS243HLV3 (LSU243HLV3 + LSN243HLV3)
Outdoor Air
Temp. (°F DB)
Indoor Air Temperature (°F DB / °F WB)
64 / 53 68 / 57 72 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
0 13.43 11.52 1.31 17.34 14.22 1.34 21.25 17.44 1.38 26.14 21.46 1.52 29.08 22.85 1.54 31.41 24.98 1.45 32.96 26.75 1.27
5 13.49 11.78 1.34 17.42 14.52 1.38 21.35 17.77 1.44 26.27 21.84 1.60 29.22 23.26 1.63 31.55 25.39 1.52 33.11 27.16 1.33
7 13.59 11.85 1.34 17.54 14.60 1.39 21.50 17.87 1.45 26.45 21.95 1.62 29.41 23.38 1.65 31.77 25.51 1.54 33.34 27.28 1.35
10 13.73 11.96 1.35 17.73 14.73 1.40 21.72 18.02 1.47 26.72 22.12 1.64 29.71 23.55 1.68 32.09 25.69 1.56 33.67 27.46 1.37
14 13.92 12.11 1.36 17.97 14.90 1.42 22.02 18.21 1.50 27.07 22.34 1.68 30.11 23.79 1.72 32.52 25.93 1.59 34.12 27.69 1.39
23 12.60 10.96 1.43 16.98 13.95 1.50 21.36 17.46 1.58 26.84 21.84 1.77 30.13 23.44 1.81 32.39 25.72 1.70 33.90 27.58 1.51
25 12.59 10.95 1.43 16.97 13.94 1.50 21.36 17.45 1.58 26.84 21.83 1.77 30.13 23.43 1.82 32.39 25.71 1.72 33.90 27.57 1.54
30 12.57 10.93 1.44 16.96 13.92 1.51 21.35 17.43 1.60 26.84 21.82 1.79 30.14 23.42 1.84 32.40 25.69 1.78 33.91 27.54 1.63
35 12.55 10.90 1.44 16.95 13.90 1.52 21.34 17.42 1.61 26.84 21.81 1.81 30.14 23.41 1.86 32.40 25.67 1.84 33.91 27.52 1.72
40 12.53 10.88 1.45 16.93 13.88 1.53 21.34 17.40 1.62 26.84 21.79 1.83 30.14 23.40 1.88 32.41 25.65 1.90 33.92 27.49 1.80
45 12.51 10.86 1.46 16.92 13.86 1.54 21.33 17.38 1.64 26.84 21.78 1.84 30.15 23.39 1.90 32.42 25.63 1.96 33.93 27.47 1.89
50 12.49 10.83 1.46 16.90 13.84 1.55 21.32 17.36 1.65 26.84 21.77 1.86 30.15 23.38 1.92 32.42 25.61 2.02 33.93 27.44 1.98
55 12.46 10.81 1.47 16.89 13.82 1.56 21.31 17.35 1.66 26.84 21.75 1.88 30.16 23.37 1.94 32.43 25.59 2.08 33.94 27.41 2.06
60 12.44 10.78 1.48 16.87 13.80 1.57 21.30 17.33 1.67 26.84 21.74 1.89 30.16 23.36 1.96 32.43 25.57 2.14 33.95 27.39 2.15
65 12.24 10.61 1.51 16.71 13.66 1.63 21.19 17.22 1.78 26.78 21.68 2.04 30.14 23.32 2.13 32.45 25.57 2.32 34.00 27.41 2.33
70 12.03 10.44 1.54 16.55 13.52 1.70 21.07 17.12 1.88 26.72 21.62 2.19 30.12 23.29 2.30 32.47 25.57 2.49 34.05 27.43 2.51
75 11.82 10.26 1.57 16.39 13.38 1.77 20.96 17.02 1.98 26.67 21.56 2.33 30.09 23.25 2.48 32.50
25.57 2.67 34.10 27.46 2.69
80 11.61 10.09 1.61 16.23 13.24 1.84 20.84 16.91 2.09 26.61 21.50 2.48 30.07 23.22 2.65 32.52 25.57 2.85 34.15 27.48 2.87
85 11.40 9.92 1.64 16.06 13.11 1.91 20.72 16.81 2.19 26.55 21.44 2.63 30.05 23.18 2.82 32.54 25.57 3.02 34.20 27.50 3.04
90 11.19 9.75 1.67 15.90 12.97 1.97 20.61 16.70 2.29 26.49 21.37 2.77 30.02 23.15 3.00 32.56 25.57 3.20 34.25 27.52 3.22
95 10.99 9.57 1.70 15.74 12.83 2.04 20.49 16.60 2.39 26.44 21.31 2.92 30.00 23.11 3.17 32.58 25.57 3.38 34.30 27.55 3.40
100 10.29 8.93 1.81 14.94 12.24 2.13 19.60 16.07 2.46 25.41 20.86 2.96 28.91 22.70 3.19 31.25 25.13 3.39 32.81 27.09 3.40
105 9.59 8.29 1.92 14.14 11.66 2.21 18.70 15.54 2.52 24.39 20.40 3.00 27.81 22.28 3.21 29.92 24.69 3.39 31.33 26.63 3.40
110 8.89 7.64 2.02 13.34 11.07 2.29 17.80 15.01 2.59 23.37 19.94 3.03 26.71 21.87 3.23 28.59 24.25 3.40 29.85 26.18 3.40
115 8.28 7.18 2.09 11.61 9.93 2.20 14.94 13.18 2.32 19.10 17.25 2.56 21.59 18.67 2.64 23.06 20.97 2.83 24.03 22.84 2.85
118 7.91 6.91 2.13 10.56 9.24 2.14 13.22 12.08 2.16 16.53 15.64 2.28 18.52 16.75 2.28 19.74 19.00 2.49 20.55 20.84 2.52
Table 15: LSN303HLV3 / LSU303HLV3 Maximum Cooling Capacities.
Max. Cooling Capacity Table for LS303HLV3 (LSU303HLV3 + LSN303HLV3)
Outdoor Air
Temp. (°F DB)
Indoor Air Temperature (°F DB / °F WB)
64 / 53 68 / 57 72 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
0 15.85 14.09 1.74 19.41 16.80 1.77 22.96 19.67 1.81 27.41 22.32 1.95 30.08 23.71 1.97 32.20 27.21 1.88 33.61 28.98 1.70
5 15.91 14.35 1.77 19.48 17.09 1.81 23.06 20.00 1.87 27.53 22.70 2.03 30.21 24.12 2.06 32.33 27.62 1.95 33.75 29.39 1.76
7 15.99 14.42 1.77 19.59 17.18 1.82 23.19 20.10 1.88 27.69 22.81 2.05 30.39 24.23 2.08 32.53 27.74 1.97 33.95 29.51 1.78
10 16.12 14.54 1.78 19.76 17.31 1.83 23.39 20.25 1.90 27.93 22.98 2.07 30.66 24.41 2.11 32.82 27.92 1.99 34.26 29.69 1.80
14 16.30 14.68 1.79 19.98 17.48 1.85 23.66 20.44 1.93 28.26 23.20 2.11 31.02 24.65 2.15 33.21 28.16 2.02 34.67 29.93 1.82
23 15.09 13.54 1.86 19.08 16.53 1.93 23.07 19.69 2.01 28.05 22.70 2.20 31.04 24.29 2.24 33.09 27.95 2.13 34.46 29.81 1.94
25 15.09 13.53 1.86 19.07 16.52 1.93 23.06 19.68 2.01 28.05 22.69 2.20 31.04 24.29 2.25 33.09 27.94 2.15 34.46 29.80 1.97
30 15.07 13.50 1.87 19.06 16.50 1.94 23.05 19.66 2.03 28.05 22.68 2.22 31.04 24.28 2.27 33.10 27.92 2.21 34.47 29.77 2.06
35 15.05 13.48 1.87 19.05 16.48 1.95 23.05 19.65 2.04 28.05 22.66 2.24 31.05 24.27 2.29 33.10 27.90 2.27 34.48 29.75 2.15
40 15.03 13.45 1.88 19.03 16.46 1.96 23.04 19.63 2.05 28.05 22.65 2.26 31.05 24.26 2.31 33.11 27.88 2.33 34.48 29.72 2.23
45 15.00 13.43 1.89 19.01 16.43 1.97 23.02 19.61 2.07 28.03 22.64 2.27 31.04 24.25 2.33 33.10 27.86 2.39 34.48 29.70 2.32
50 14.99 13.41 1.89 19.00 16.41 1.98 23.02 19.59 2.08 28.03 22.62 2.29 31.05 24.24 2.35 33.11 27.84 2.45 34.48 29.67 2.41
55 14.97 13.38 1.90 18.99 16.39 1.99 23.01 19.58 2.09 28.03 22.61 2.31 31.05 24.23 2.37 33.11 27.82 2.51 34.49 29.64 2.49
60 14.95 13.36 1.90 18.97 16.37 2.00 23.00 19.56 2.10 28.03 22.60 2.32 31.05 24.22 2.39 33.12 27.80 2.57 34.49 29.62 2.58
65 14.76 13.18 1.94 18.83 16.23 2.06 22.90 19.45 2.21 27.98 22.54 2.47 31.03 24.18 2.56 33.14 27.80 2.75 34.54 29.64 2.76
70 14.57 13.01 1.97 18.68 16.10 2.13 22.79 19.35 2.31 27.93 22.48 2.62 31.01 24.15 2.73 33.16 27.80 2.92 34.59 29.66 2.94
75 14.38 12.84 2.00 18.54 15.96 2.20 22.69 19.25 2.41 27.89 22.42 2.76 31.00 24.11 2.91 33.19
27.80 3.10 34.64 29.69 3.12
80 14.46 12.67 2.04 18.74 15.82 2.27 23.01 19.14 2.52 28.36 22.35 2.91 31.56 24.08 3.08 33.83 27.80 3.28 35.34 29.71 3.30
85 14.68 12.49 2.07 19.12 15.68 2.34 23.57 19.04 2.62 29.12 22.29 3.06 32.45 24.04 3.25 34.83 27.80 3.45 36.41 29.73 3.47
90 14.92 12.32 2.10 19.54 15.54 2.40 24.16 18.93 2.72 29.94 22.23 3.20 33.40 24.00 3.43 35.89 27.80 3.63 37.55 29.75 3.65
95 14.99 12.15 2.13 19.74 15.40 2.47 24.49 18.83 2.82 30.44 22.17 3.35 34.00 23.97 3.60 36.58 27.80 3.81 38.30 29.78 3.83
100 14.29 11.50 2.24 18.94 14.82 2.56 23.60 18.30 2.89 29.41 21.71 3.39 32.90 23.55 3.62 35.25 27.36 3.82 36.81 29.32 3.83
105 13.59 10.86 2.35 18.14 14.23 2.64 22.70 17.77 2.95 28.39 21.25 3.43 31.81 23.14 3.64 33.92 26.92 3.82 35.33 28.86 3.83
110 12.89 10.22 2.45 17.34 13.64 2.72 21.80 17.24 3.02 27.37 20.80 3.46 30.71 22.72 3.66 32.59 26.48 3.83 33.84 28.41 3.83
115 12.28 9.76 2.52 15.61 12.50 2.63 18.93 15.41 2.75 23.10 18.11 2.99 25.59 19.53 3.07 27.06 23.20 3.26 28.03 25.07 3.28
118 11.91 9.48 2.56 14.56 11.81 2.57 17.22 14.32 2.59 20.53 16.50 2.71 22.52 17.61 2.71 23.73 21.23 2.92 24.54 23.07 2.95
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity (kBtu/h)
SHC: Sensible Capacity (kBtu/h) PI: Power Input (kW) (includes compressor, indoor fan motor and
outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Low Ambient Wind Baffle Kit (sold separately) allows operation down to 0°F.
3. Direct interpolation is permissible.
Do not extrapolate.
Capacity as rated: 0 ft. above sea level with 24.6 ft. of refrigerant piping. 0 ft. level difference between
outdoor and indoor units.
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).
38 | PERFORMANCE DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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Table 16: LSN363HLV3 / LSU363HLV3 Maximum Cooling Capacities.
Max. Cooling Capacity Table for LS363HLV3 (LSU363HLV3 + LSN363HLV3)
Outdoor Air
Temp. (°F DB)
Indoor Air Temperature (°F DB / °F WB)
64 / 53 68 / 57 72 / 61 77 / 64 80 / 67 86 / 72 90 / 75
TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
0 17.43 15.30 2.16 21.34 18.17 2.19 25.25 20.87 2.23 30.14 24.38 2.37 33.08 25.77 2.39 35.40 28.41 2.30 36.96 30.18 2.12
5 17.49 15.55 2.19 21.42 18.46 2.23 25.35 21.21 2.29 30.27 24.76 2.45 33.22 26.17 2.48 35.55 28.82 2.37 37.11 30.59 2.19
7 17.59 15.63 2.19 21.54 18.55 2.24 25.50 21.30 2.30 30.45 24.87 2.47 33.41 26.29 2.50 35.77 28.94 2.39 37.33 30.71 2.20
10 17.73 15.74 2.20 21.73 18.68 2.25 25.72 21.45 2.32 30.72 25.04 2.49 33.71 26.47 2.53 36.09 29.12 2.41 37.67 30.89 2.22
14 17.92 15.89 2.21 21.97 18.85 2.27 26.02 21.64 2.35 31.07 25.26 2.53 34.11 26.71 2.57 36.52 29.36 2.44 38.12 31.13 2.25
23 16.60 14.74 2.28 20.98 17.90 2.35 25.36 20.89 2.43 30.84 24.75 2.62 34.13 26.35 2.66 36.39 29.15 2.55 37.90 31.01 2.36
25 16.59 14.73 2.28 20.97 17.89 2.35 25.36 20.88 2.44 30.84 24.75 2.63 34.13 26.35 2.67 36.39 29.14 2.57 37.90 31.00 2.39
30 16.57 14.70 2.29 20.96 17.87 2.36 25.35 20.86 2.45 30.84 24.74 2.64 34.14 26.34 2.69 36.40 29.12 2.63 37.91 30.97 2.48
35 16.55 14.68 2.30 20.95 17.85 2.37 25.34 20.85 2.46 30.84 24.72 2.66 34.14 26.33 2.71 36.40 29.10 2.69 37.91 30.95 2.57
40 16.53 14.66 2.30 20.93 17.83 2.38 25.34 20.83 2.47 30.84 24.71 2.68 34.14 26.32 2.73 36.41 29.08 2.75 37.92 30.92 2.65
45 16.51 14.63 2.31 20.92 17.81 2.39 25.33 20.81 2.49 30.84 24.70 2.69 34.15 26.31 2.75 36.41 29.06 2.81 37.93 30.90 2.74
50 16.48 14.61 2.31 20.90 17.79 2.40 25.32 20.79 2.50 30.84 24.68 2.71 34.15 26.30 2.77 36.42 29.04 2.87 37.93 30.87 2.83
55 16.46 14.58 2.32 20.89 17.77 2.41 25.31 20.78 2.51 30.84 24.67 2.73 34.16 26.29 2.79 36.43 29.02 2.93 37.94 30.85 2.91
60 16.44 14.56 2.33 20.87 17.74 2.42 25.30 20.76 2.53 30.84 24.66 2.74 34.16 26.27 2.81 36.43 29.00 2.99 37.95 30.82 3.00
65 16.24 14.39 2.36 20.71 17.61 2.49 25.19 20.66 2.63 30.78 24.60 2.89 34.14 26.24 2.98 36.45 29.00 3.17 38.00 30.84 3.18
70 16.03 14.21 2.39 20.55 17.47 2.55 25.07 20.55 2.73 30.72 24.54 3.04 34.12 26.20 3.15 36.47 29.00 3.34 38.05 30.87 3.36
75 15.82 14.04 2.42 20.39 17.33 2.62 24.96 20.45 2.83 30.67 24.47 3.18 34.09 26.17 3.33 36.49
29.00 3.52 38.10 30.89 3.54
80 15.61 13.87 2.46 20.23 17.19 2.69 24.84 20.34 2.94 30.61 24.41 3.33 34.07 26.13 3.50 36.52 29.00 3.70 38.15 30.91 3.72
85 15.40 13.69 2.49 20.06 17.05 2.76 24.72 20.24 3.04 30.55 24.35 3.48 34.05 26.10 3.67 36.54 29.00 3.87 38.20 30.93 3.90
90 15.19 13.52 2.52 19.90 16.91 2.82 24.61 20.14 3.14 30.49 24.29 3.63 34.02 26.06 3.85 36.56 29.00 4.05 38.25 30.96 4.08
95 14.99 13.35 2.56 19.74 16.78 2.89 24.49 20.03 3.25 30.44 24.23 3.77 34.00 26.03 4.02 36.58 29.00 4.23 38.30 30.98 4.25
100 14.29 12.71 2.66 18.94 16.19 2.98 23.60 19.50 3.31 29.41 23.77 3.81 32.90 25.61 4.04 35.25 28.56 4.24 36.81 30.52 4.25
105 13.59 12.06 2.77 18.14 15.60 3.06 22.70 18.97 3.37 28.39 23.31 3.85 31.81 25.20 4.06 33.92 28.12 4.25 35.33 30.07 4.25
110 12.89 11.42 2.87 17.34 15.02 3.15 21.80 18.44 3.44 27.37 22.86 3.88 30.71 24.78 4.09 32.59 27.68 4.25 33.84 29.61 4.25
115 12.28 10.96 2.94 15.61 13.87 3.05 18.93 16.61 3.17 23.10 20.17 3.41 25.59 21.58 3.49 27.06 24.40 3.68 28.03 26.27 3.70
118 11.91 10.68 2.98 14.56 13.18 2.99 17.22 15.52 3.01 20.53 18.56 3.13 22.52 19.67 3.13 23.73 22.43 3.34 24.54 24.27 3.37
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity (kBtu/h)
SHC: Sensible Capacity (kBtu/h) PI: Power Input (kW) (includes compressor, indoor fan motor and
outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Low Ambient Wind Baffle Kit (sold separately) allows operation down to 0°F.
3. Direct interpolation is permissible.
Do not extrapolate.
Capacity as rated: 0 ft. above sea level with 24.6 ft. of refrigerant piping. 0 ft. level difference between
outdoor and indoor units.
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).
Maximum Cooling Capacity
PERFORMANCE DATA
LS363HLV3
PERFORMANCE DATA | 39
Performance Data
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Heating Capacity
PERFORMANCE DATA
Outdoor Air
Temp.
Indoor Air Temperature (°F DB)
°F DB °F WB
60 64 68 70 72 75 86
TC PI TC PI TC PI TC PI TC PI TC PI TC PI
-3 -4 13.26 1.39 12.86 1.37 12.73 1.37 12.60 1.36 12.51 1.36 12.26 1.35 11.97 1.35
0 -1 14.44 1.52 14.00 1.51 13.86 1.51 13.72 1.49 13.62 1.49 13.34 1.48 13.03 1.48
1 0 14.62 1.54 14.18 1.52 14.03 1.52 13.90 1.51 13.79 1.51 13.51 1.49 13.19 1.49
6 5 15.28 1.59 14.81 1.58 14.66 1.58 14.52 1.56 14.41 1.56 14.12 1.55 13.78 1.55
10 9 15.95 1.64 15.47 1.63 15.31 1.63 15.16 1.61 15.04 1.61 14.74 1.59 14.39 1.59
16 14 16.45 1.66 15.95 1.64 15.79 1.64 15.64 1.63 15.52 1.63 15.20 1.61 14.84 1.61
17 15 16.56 1.68 16.06 1.66 15.90 1.66 15.74 1.64 15.62 1.64 15.31 1.63 14.94 1.63
19 17 16.79 1.71 16.28 1.69 16.11 1.69 15.95 1.68 15.83 1.68 15.51 1.66 15.15 1.66
24 23 18.41 1.77 17.86 1.76 17.68 1.76 17.50 1.74 17.37 1.74 17.02 1.72 16.61 1.72
32 30 22.07 1.92 21.40 1.90 21.19 1.90 20.98 1.88 20.82 1.88 20.40 1.86 19.91 1.86
41 38 25.33 2.04 24.56 2.02 24.31 2.02 24.07 2.00 23.88 2.00 23.40 1.98 22.85 1.98
43 40 26.14 2.07 25.35 2.05 25.09 2.05 24.84 2.03 24.65 2.03 24.16 2.01 23.58 2.01
47 43 27.36 2.12 26.53 2.10 26.26 2.10 26.00 2.08 25.80 2.08 25.28 2.06 24.68 2.06
53 50 27.63 2.14 26.79 2.12 26.52 2.12 26.26 2.10 26.06 2.10 25.54 2.08 24.93 2.08
59 53 28.26 2.16 27.40 2.14 27.13 2.14 26.86 2.12 26.65 2.12 26.12 2.10 25.50 2.10
64 57 28.86 2.21 27.99 2.18 27.70 2.18 27.43 2.16 27.22 2.16 26.67 2.14 26.04 2.14
70 61 29.41 2.24 28.52 2.22 28.23 2.22 27.95 2.19 27.74 2.19 27.18 2.17 26.53 2.17
75 65 29.82 2.27 28.92 2.25 28.62 2.25 28.34 2.23 28.12 2.23 27.56 2.20 26.90 2.20
Table 17: LSN243HLV3 / LSU243HLV3 Heating Capacities.
Outdoor Air
Temp.
Indoor Air Temperature (°F DB)
°F DB °F WB
60 64 68 70 72 75 86
TC PI TC PI TC PI TC PI TC PI TC PI TC PI
-3 -4 16.53 1.84 16.03 1.82 15.86 1.82 15.71 1.80 15.59 1.80 15.27 1.78 14.91 1.78
0 -1 17.99 2.02 17.45 2.00 17.27 2.00 17.10 1.98 16.97 1.98 16.63 1.96 16.23 1.96
1 0 18.22 2.04 17.67 2.02 17.49 2.02 17.32 2.00 17.18 2.00 16.84 1.98 16.44 1.98
6 5 19.04 2.11 18.46 2.09 18.27 2.09 18.09 2.07 17.95 2.07 17.59 2.05 17.18 2.05
10 9 19.87 2.18 19.27 2.15 19.08 2.15 18.89 2.13 18.74 2.13 18.37 2.11 17.93 2.11
16 14 20.50 2.20 19.88 2.18 19.68 2.18 19.48 2.16 19.34 2.16 18.95 2.13 18.50 2.13
17 15 20.64 2.22 20.02 2.20 19.81 2.20 19.62 2.18 19.47 2.18 19.08 2.16 18.62 2.16
19 17 20.92 2.27 20.29 2.24 20.08 2.24 19.88 2.22 19.73 2.22 19.33 2.20 18.87 2.20
24 23 22.95 2.35 22.25 2.33 22.03 2.33 21.81 2.30 21.64 2.30 21.21 2.28 20.70 2.28
32 30 27.51 2.54 26.67 2.51 26.40 2.51 26.14 2.49 25.94 2.49 25.42 2.46 24.82 2.46
41 38 31.56 2.70 30.60 2.68 30.29 2.68 29.99 2.65 29.76 2.65 29.17 2.63 28.47 2.63
43 40 32.57 2.75 31.59 2.72 31.27 2.72 30.96 2.69 30.72 2.69 30.10 2.67 29.39 2.67
47 43 34.09 2.81 33.06 2.78 32.72 2.78 32.40 2.75 32.15 2.75 31.51 2.73 30.76 2.73
53 50 34.43 2.84 33.39 2.81 33.05 2.81 32.72 2.78 32.47 2.78 31.82 2.75 31.07 2.75
59 53 35.22 2.87 34.15 2.84 33.80 2.84 33.47 2.81 33.21 2.81 32.55 2.78 31.77 2.78
64 57 35.97 2.92 34.88 2.89 34.52 2.89 34.18 2.86 33.92 2.86 33.24 2.84 32.45 2.84
70 61 36.65 2.96 35.54 2.93 35.18 2.93 34.83 2.91 34.56 2.91 33.87 2.88 33.06 2.88
75 65 37.16 3.01 36.03 2.98 35.67 2.98 35.32 2.95 35.05 2.95 34.34 2.92 33.53 2.92
Table 18: LSN303HLV3 / LSU303HLV3 Heating Capacities.
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity (kBtu/h)
PI: Power Input (kW) (includes compressor,indoor fan motor and outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible.
Do not extrapolate.
Capacity as rated: 0 ft. above sea level with 24.6 ft. of refrigerant piping. 0 ft. level difference between
outdoor and indoor units.
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).
LS243HLV3, LS303HLV3
Heating Capacity Table for LS243HLV3 (LSU243HLV3 + LSN243HLV3)
Heating Capacity Table for LS303HLV3 (LSU303HLV3 + LSN303HLV3)
40 | PERFORMANCE DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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Outdoor Air
Temp.
Indoor Air Temperature (°F DB)
°F DB °F WB
60 64 68 70 72 75 86
TC PI TC PI TC PI TC PI TC PI TC PI TC PI
-3 -4 17.96 2.08 17.41 2.06 17.23 2.06 17.06 2.04 16.93 2.04 16.59 2.02 16.20 2.02
0 -1 19.55 2.28 18.95 2.26 18.76 2.26 18.58 2.24 18.43 2.24 18.06 2.21 17.63 2.21
1 0 19.80 2.30 19.19 2.28 19.00 2.28 18.81 2.26 18.67 2.26 18.29 2.24 17.86 2.24
6 5 20.68 2.38 20.06 2.36 19.85 2.36 19.66 2.34 19.51 2.34 19.11 2.31 18.66 2.31
10 9 21.59 2.46 20.94 2.44 20.73 2.44 20.52 2.41 20.36 2.41 19.95 2.39 19.48 2.39
16 14 22.27 2.49 21.60 2.46 21.38 2.46 21.17 2.44 21.01 2.44 20.58 2.41 20.10 2.41
17 15 22.43 2.51 21.75 2.49 21.53 2.49 21.31 2.46 21.15 2.46 20.72 2.44 20.23 2.44
19 17 22.73 2.56 22.04 2.54 21.82 2.54 21.60 2.51 21.43 2.51 21.00 2.49 20.51 2.49
24 23 24.93 2.66 24.17 2.63 23.93 2.63 23.69 2.61 23.51 2.61 23.04 2.58 22.49 2.58
32 30 29.88 2.87 28.98 2.84 28.68 2.84 28.40 2.81 28.18 2.81 27.62 2.79 26.96 2.79
41 38 34.29 3.06 33.25 3.03 32.91 3.03 32.58 3.00 32.34 3.00 31.69 2.97 30.93 2.97
43 40 35.39 3.11 34.31 3.08 33.97 3.08 33.63 3.05 33.37 3.05 32.70 3.02 31.93 3.02
47 43 37.04 3.18 35.92 3.15 35.55 3.15 35.20 3.12 34.93 3.12 34.23 3.08 33.42 3.08
53 50 37.41 3.21 36.28 3.18 35.91 3.18 35.55 3.15 35.28 3.15 34.57 3.11 33.75 3.11
59 53 38.26 3.24 37.10 3.21 36.73 3.21 36.36 3.18 36.08 3.18 35.36 3.15 34.52 3.15
64 57 39.08 3.30 37.89 3.27 37.51 3.27 37.14 3.24 36.85 3.24 36.11 3.21 35.25 3.21
70 61 39.82 3.35 38.61 3.32 38.22 3.32 37.84 3.29 37.55 3.29 36.80 3.25 35.92 3.25
75 65 40.37 3.40 39.15 3.37 38.75 3.37 38.37 3.33 38.07 3.33 37.31 3.30 36.42 3.30
Table 19: LSN363HLV3 / LSU363HLV3 Heating Capacities.
Heating Capacity
PERFORMANCE DATA
LS363HLV3
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity (kBtu/h)
PI: Power Input (kW) (includes compressor,indoor fan motor and outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible.
Do not extrapolate.
Capacity as rated: 0 ft. above sea level with 24.6 ft. of refrigerant piping. 0 ft. level difference between
outdoor and indoor units.
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).
Heating Capacity Table for LS363HLV3 (LSU363HLV3 + LSN363HLV3)
PERFORMANCE DATA | 41
Performance Data
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Maximum Heating Capacity
PERFORMANCE DATA
Outdoor Air
Temp.
Indoor Air Temperature (°F DB)
°F DB °F WB
60 64 68 70 72 75 86
TC PI TC PI TC PI TC PI TC PI TC PI TC PI
-3 -4 21.44 2.87 21.32 2.87 21.22 2.88 21.17 2.88 21.02 2.92 20.69 2.97 19.70 3.17
0 -1 22.66 2.90 22.48 2.92 22.34 2.94 22.26 2.95 22.09 2.98 21.72 3.04 20.62 3.24
1 0 23.16 2.90 22.96 2.93 22.81 2.96 22.71 2.98 22.54 3.00 22.13 3.04 20.90 3.18
6 5 25.71 3.00 25.45 3.04 25.23 3.07 23.70 3.10 23.75 3.07 24.29 3.04 21.68 2.92
10 9 27.05 3.03 26.75 3.07 26.51 3.11 25.54 3.13 26.04 3.10 25.28 3.06 22.07 2.91
16 14 28.30 3.06 27.97 3.10 27.70 3.14 26.72 3.16 27.10 3.12 26.07 3.06 22.98 2.84
17 15 28.62 3.05 28.29 3.10 28.01 3.15 27.03 3.17 27.37 3.12 26.28 3.05 23.00 2.79
19 17 28.97 3.08 28.63 3.11 28.35 3.14 27.36 3.16 27.65 3.10 26.44 3.00 22.80 2.65
24 23 30.44 3.15 30.08 3.16 29.79 3.17 29.07 3.17 28.90 3.10 27.28 2.99 22.42 2.59
32 30 32.78 3.17 32.40 3.18 32.08 3.19 31.36 3.19 30.94 3.10 28.77 2.96 22.23 2.45
41 38 35.41 3.07 35.01 3.13 34.67 3.19 33.65 3.21 33.33 3.09 30.74 2.90 22.95 2.19
43 40 36.00 3.07 35.59 3.13 35.25 3.19 34.50 3.22 33.84 3.08 31.08 2.88 22.83 2.12
47 43 37.19 3.00 36.76 3.09 36.40 3.19 36.20 3.24 34.87 3.09 31.87 2.85 22.86 2.00
53 50 38.16 3.05 37.68 3.14 37.30 3.23 37.08 3.28 35.62 3.10 32.33 2.84 22.46 1.85
59 53 38.64 2.99 38.61 3.10 38.58 3.21 38.56 3.27 36.97 3.09 33.40 2.83 22.68 1.87
64 57 38.95 2.92 38.37 2.97 37.90 3.01 37.64 3.04 36.12 2.88 32.70 2.66 22.45 1.82
70 61 39.08 2.79 38.40 2.79 37.85 2.78 37.54 2.78 36.04 2.64 32.66 2.44 22.54 1.68
75 65 38.98 2.55 38.20 2.62 37.55 2.69 37.19 2.72 35.66 2.58 32.22 2.36 21.90 1.56
Table 20: LSN243HLV3 / LSU243HLV3 Maximum Heating Capacities.
Outdoor Air
Temp.
Indoor Air Temperature (°F DB)
°F DB °F WB
60 64 68 70 72 75 86
TC PI TC PI TC PI TC PI TC PI TC PI TC PI
-3 -4 24.71 3.61 24.57 3.62 24.45 3.63 24.39 3.63 24.22 3.68 23.84 3.74 22.70 3.99
0 -1 26.11 3.65 25.90 3.67 25.74 3.70 25.65 3.71 25.46 3.76 25.03 3.83 23.76 4.09
1 0 26.68 3.69 26.46 3.72 26.28 3.75 26.18 3.76 25.97 3.79 25.50 3.83 24.08 3.99
6 5 29.62 3.79 29.32 3.84 29.08 3.89 28.08 3.90 28.65 3.88 27.99 3.84 24.99 3.69
10 9 31.18 3.81 30.83 3.86 30.55 3.92 30.39 3.94 30.01 3.90 29.14 3.85 25.44 3.66
16 14 32.62 3.84 32.24 3.89 31.93 3.94 31.75 3.96 31.23 3.91 30.04 3.83 26.49 3.56
17 15 32.98 3.87 32.60 3.93 32.28 3.98 32.11 4.00 31.55 3.92 30.29 3.81 26.51 3.40
19 17 33.39 3.88 32.99 3.93 32.67 3.97 32.50 3.99 31.87 3.90 30.47 3.78 26.28 3.35
24 23 34.56 4.01 34.15 4.02 33.82 4.03 33.63 4.04 32.82 3.94 30.98 3.80 25.45 3.30
32 30 36.43 4.07 36.00 4.09 35.66 4.10 35.47 4.10 34.39 3.97 31.97 3.80 24.71 3.15
41 38 38.53 4.04 38.09 4.12 37.73 4.20 37.52 4.23 36.27 4.05 33.44 3.80 24.97 2.89
43 40 39.01 3.93 38.56 4.01 38.19 4.09 37.98 4.12 36.66 3.93 33.68 3.67 24.73 2.72
47 43 39.96 4.04 39.49 4.17 39.11 4.31 38.90 4.37 37.46 4.14 34.24 3.83 24.56 2.70
53 50 41.00 4.11 40.49 4.24 40.07 4.36 39.84 4.42 38.27 4.16 34.74 3.81 24.13 2.50
59 53 41.52 4.03 41.48 4.18 41.45 4.34 41.43 4.41 39.73 4.15 35.89 3.80 24.37 2.52
64 57 41.85 3.94 41.23 4.00 40.72 4.07 40.44 4.09 38.81 3.87 35.14 3.57 24.12 2.45
70 61 41.99 3.77 41.26 3.76 40.67 3.75 40.33 3.75 38.72 3.55 35.10 3.27 24.21 2.27
75 65 41.89 3.44 41.04 3.53 40.35 3.63 39.96 3.67 38.32 3.46 34.62 3.17 23.53 2.11
Table 21: LSN303HLV3 / LSU303HLV3 Maximum Heating Capacities.
LS243HLV3, LS303HLV3
Maximum Heating Capacity Table for LS243HLV3 (LSU243HLV3 +
LSN243HLV3)
Maximum Heating Capacity Table for LS303HLV3 (LSU303HLV3 +
LSN303HLV3)
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity (kBtu/h)
PI: Power Input (kW) (includes compressor,indoor fan motor and outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible.
Do not extrapolate.
Capacity as rated: 0 ft. above sea level with 24.6 ft. of refrigerant piping. 0 ft. level difference between
outdoor and indoor units.
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).
42 | PERFORMANCE DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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Outdoor Air
Temp.
Indoor Air Temperature (°F DB)
°F DB °F WB
60 64 68 70 72 75 86
TC PI TC PI TC PI TC PI TC PI TC PI TC PI
-3 -4 27.18 4.47 27.03 4.48 26.90 4.49 26.82 4.49 26.64 4.55 26.22 4.63 24.97 4.93
0 -1 28.72 4.52 28.50 4.55 28.32 4.58 28.21 4.59 28.01 4.66 27.54 4.74 26.13 5.06
1 0 29.35 4.56 29.11 4.60 28.91 4.64 28.80 4.65 28.57 4.69 28.05 4.74 26.49 4.93
6 5 32.59 4.69 32.26 4.75 31.98 4.81 30.89 4.84 31.51 4.80 30.79 4.75 27.49 4.57
10 9 34.30 4.72 33.92 4.78 33.60 4.85 33.43 4.88 33.01 4.83 32.05 4.77 27.98 4.53
16 14 35.88 4.75 35.46 4.81 35.12 4.88 34.93 4.91 34.35 4.84 33.05 4.75 29.14 4.41
17 15 36.28 4.79 35.86 4.86 35.51 4.93 35.32 4.96 34.70 4.85 33.32 4.72 29.16 4.21
19 17 36.72 4.81 36.29 4.86 35.94 4.91 35.74 4.93 35.06 4.83 33.52 4.68 28.91 4.14
24 23 37.30 4.84 36.86 4.86 36.50 4.87 36.30 4.88 35.42 4.75 33.43 4.59 27.47 3.98
32 30 38.22 4.69 37.77 4.70 37.41 4.71 37.21 4.72 36.08 4.57 33.54 4.37 25.92 3.63
41 38 39.25 4.38 38.80 4.46 38.43 4.54 38.22 4.58 36.94 4.38 34.06 4.11 25.43 3.13
43 40 39.48 4.19 39.03 4.27 38.65 4.35 38.45 4.39 37.11 4.19 34.09 3.91 25.03 2.89
47 43 39.96 4.04 39.49 4.17 39.11 4.31 38.90 4.37 37.46 4.14 34.24 3.83 24.56 2.70
53 50 41.00 4.11 40.49 4.24 40.07 4.36 39.84 4.42 38.27 4.16 34.74 3.81 24.13 2.50
59 53 41.52 4.03 41.48 4.18 41.45 4.34 41.43 4.41 39.73 4.15 35.89 3.80 24.37 2.52
64 57 41.85 3.94 41.23 4.00 40.72 4.07 40.44 4.09 38.81 3.87 35.14 3.57 24.12 2.45
70 61 41.99 3.77 41.26 3.76 40.67 3.75 40.33 3.75 38.72 3.55 35.10 3.27 24.21 2.27
75 65 41.89 3.44 41.04 3.53 40.35 3.63 39.96 3.67 38.32 3.46 34.62 3.17 23.53 2.11
Table 22: LSN363HLV3 / LSU363HLV3 Maximum Heating Capacities.
Maximum Heating Capacity
LS363HLV3
PERFORMANCE DATA
Maximum Heating Capacity Table for LS363HLV3 (LSU363HLV3 +
LSN363HLV3)
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity (kBtu/h)
PI: Power Input (kW) (includes compressor,indoor fan motor and outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible.
Do not extrapolate.
Capacity as rated: 0 ft. above sea level with 24.6 ft. of refrigerant piping. 0 ft. level difference between
outdoor and indoor units.
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).
PERFORMANCE DATA | 43
Performance Data
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Cooling / Heating Correction Factors
For Single Zone Extended Piping Wall Mounted systems, calculate the equivalent length of the liquid line from the outdoor unit to the indoor
unit. Also, determine the elevation difference of the indoor unit above or below the outdoor unit. Find the corresponding cooling or heating
capacity correction factors as shown below. Multiply the correction factors by the cooling or heating capacity obtained from the capacity
tables using design conditions. The result is the NET cooling or heating capacity.
Table 23: ([WHQGHG3LSLQJ:DOO0RXQWHG&RROLQJDQG+HDWLQJ&DSDFLW\&RHI¿FLHQW)DFWRUV
Model No.
Operation
Mode
Piping Length (ft.)
16.4 24.6 32.8 49.2 65.6 82 98.4 114.8 131.2 147.6 164
Rate of Capacity
Change (%)
LS243HLV3
Cooling 100 100 99.6 98.7 97.8 96.9 96.0 95.1 94.3 93.4 92.5
Heating 100 100 99.8 99.3 98.9 98.4 98.0 97.5 97.1 96.6 96.2
LS303HLV3
Cooling 100 100 99.6 98.7 97.8 96.9 96.0 95.1 94.3 93.4 92.5
Heating 100 100 99.8 99.3 98.9 98.4 98.0 97.5 97.1 96.6 96.2
LS363HLV3
Cooling 100 100 99.6 98.7 97.8 96.9 96.0 95.1 94.3 93.4 92.5
Heating 100 100 99.8 99.3 98.9 98.4 98.0 97.5 97.1 96.6 96.2
EQUIPMENT SELECTION PROCEDURE
Correction Factors
Cooling and Heating Capacity Coefficient Factors.
Equivalent Piping Length for Piping Components
Table 24: Equivalent Piping Length for Elbows.
Component Size (Inches).
Elbow (ft.)
1/4 3/8 1/2 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2 1-5/8 1-3/4 2-1/8
0.5 0.6 0.7 0.8 1.2 1.3 1.5 1.6 1.8 2.0 2.1 2.3 2.5 2.8
Altitude Correction Factor
The impact of air density must be considered on systems installed at a significant altitude above sea level, therefore, locally accepted altitude
correction factors using ASHRAE guidelines must be applied.
Defrost Correction Factor for Heating Operation
The outdoor unit heating capacity may need to be adjusted for frost accumulation on air-cooled systems. If design day conditions are below
the dewpoint of the surrounding air, frost may not be a problem and no correction factor is needed. In certain weather conditions, however,
frost may form and accumulate on the air-cooled outdoor unit coil and impact the coils ability to transfer heat. If significant frost accumulates
on the outdoor unit coil, a defrost algorithm will start automatically. The timing between defrost periods is determined by the system’s ability
to achieve a target head pressure value.
Capacity and AHRI ratings tables do not factor in capacity reduction when frost has accumulated on the condenser coil, nor during defrost
operation.
Integrated heating capacity values can be obtained using the formula:
A = B x C
Where:
A = Integrated Heating Capacity.
B = Value found in the Capacity Table.
C = Correction Factor for Frost Accumulation Factor (from table
at right).
Table 25: Outdoor Unit Frost Accumulation Factor (Heating).
1
Entering DB (ºF)
19.4 23.0 26.6 32.0 37.4 41.0 44.6
Derate Factor
0.98 0.95 0.93 0.86 0.93 0.96 1.0
1
At 85% outdoor air relative humidity.
The frost accumulation factor does not account for effects of snow accumulation restricting airflow
through the outdoor unit coil.
There will be a temporary reduction in capacity when frost / ice accumulates on the outside surface of the outdoor unit heat exchanger. The level of
capacity reduction depends on a number of factors, for example, outdoor temperature (°F DB), relative humidity (RH), and the amount of frost present.
44 | PERFORMANCE DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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EQUIPMENT SELECTION PROCEDURE
Correction Factors
Check the Indoor and Outdoor Unit Selection(s)
Compare the corrected cooling and heating capacities to the load calculations. Is each capacity sufficient for the zone it serves?
For the indoor unit, the corrected capacity must be at least equal to the total of the cooling design load (plus ventilation load, if applicable) for
the space served by the indoor unit. For the indoor unit, the corrected capacity also must be at least equal to the total of the heating design
load (plus ventilation load, if applicable) for the space(s) and / or thermal zone served by the indoor unit.
The outdoor unit selected must be large enough to offset the total cooling load for the space it serves (account for ventilation air cooling
load if the ventilation air has not been pretreated to room neutral conditions). The outdoor unit must also be large enough to offset the total
heating load for the space it serves.
If the corrected heating capacity ratio exceeds 100%, reselect the equipment, or change the system design by moving some of the load to
another system.
• Understand the design safety factors.
• Reference load calculations for actual cooling and heating capacities (applies in 99% of applications – consider total load when latent load
is greater than 30%).
• Verify that the sensible load of the zone is satisfied.
• Use caution when sizing to meet listed capacity specifications for the scheduled manufacturer’s equipment.
If further system design assistance is needed, or you have a unique application you would like to discuss, contact your LG sales rep.
1. Outdoor Unit Rated Capacity.
Q
odu(rated)
(From capacity tables).
2. Outdoor Unit Capacity at Ti, To Temperature.
Q
odu(Ti, To)
(From capacity tables).
3. Outdoor Unit Capacity Coefficient Factor.
F
(Ti, To)
= Q
odu(Ti, To)
/ Q
odu(rated)
4. Piping Correction Factor (From Capacity Coefficient
Factor Tables).
F
(length)
for each piping length
5. Individual Indoor Unit Combination Capacity.
Q
idu (combi)
= Q
odu(rated)
x Q
idu(rated)
/ Q
idu(rated-total)
6. Individual Indoor Unit Actual Capacity.
Q
idu (actual)
= Q
odu(combi)
x F
(Ti, To)
x F
(length, altitude)
System Sizing Check Formulas
Conclusions and Recommendations
Placement Considerations on page 46
Installing Outdoor Units Indoors on page 51
Refrigerant Piping Design on page 54
APPLICATION
GUIDELINES
46 | APPLICATION GUIDELINES
Single Zone Extended Piping Wall Mounted Engineering Manual
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PLACEMENT CONSIDERATIONS
Indoor Unit
Selecting the Best Location for the Indoor Unit
Figure 25: Extended Piping Indoor Unit Clearance Requirements.
More than 8 inches
(200 mm)
More than
4 inches
(100 mm)
More than
4 inches
(100 mm)
At least 6-1/2 feet
(2 m) from the floor
Follow required best practices when choosing an indoor location for the single
zone indoor unit.
Do’s
• Minimum clearance of indoor unit from the top of the unit to the ceiling
must be greater than 8 inches.
• Clearance gap between any wall or enclosure and the left or right side of
the unit must be greater than 4 inches. Ensure there is sufficient mainte-
nance space.
• Unit must be at least 6-1/2 feet from the floor for adequate clearance.
• Place the unit where drainage can be obtained easily. Condensation drain
must be conveniently routed away from the unit.
• Locate the indoor unit in a location where it can be easily connected to the
outdoor unit within allowable limits.
• Install unit on a strong, hard wall. Use a metal detector to locate studs in
the walls. Anchor unit following stud location to prevent damage to the wall.
Do Not’s
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large enough to vent out these materials.)
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• Do not install in an area where operation sound will disturb occupants--place the unit where noise prevention is taken into consideration.
• Do not install near doorway.
• Avoid installing the unit near high-frequency generators.
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explosion, and physical injury or death.
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 build-
ings where IDUs will be exposed to VOCs consider a factory-applied epoxy coating to the fan coils for each IDU.
• 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 [3] degrees).
• Add insulation between the floor joists.
• Install radiant heat or another type of heating system to the floor.
Install a ventilation fan
with sufficient capacity
Heat or steam source
Include enough
distance
Indoor Unit
Figure 26: Installing Near a Heat or Steam Source.
WARNING
APPLICATION GUIDELINES | 47
Application Guidelines
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PLACEMENT CONSIDERATIONS
Outdoor Unit
Selecting the Best Location for the Outdoor Unit
DANGER
• Do not install the unit in an area where combustible gas will generate, flow, stagnate, or leak. These conditions can cause a fire, result-
ing in bodily injury or death.
•
Do not install the unit in a location where acidic solution and spray (sulfur) are often used as it can cause bodily injury or death.
• Do not use the unit in environments where oil, steam, or sulfuric gas are present as it can cause bodily injury or death.
CAUTION
When deciding on a location to place the outdoor unit, be sure to choose an area where run-off from defrost will not accumulate and freeze on
sidewalks or driveways, which will create unsafe conditions. Properly install and insulate any drain hoses to prevent the hose from freezing, cracking,
leaking, and causing unsafe conditions from frozen condensate.
Install a fence to prevent vermin from crawling into the unit or unauthorized individuals from accessing it. Vermin and unauthorized individuals will
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Install a fence to prevent vermin from crawling into the unit or unauthorized individuals from accessing it. Vermin and unauthorized individuals will
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Select a location for installing the outdoor unit that will meet the following conditions:
• A location that allows for optimum air flow and is easily accessible for inspection, maintenance, and service.
• Where piping between the outdoor unit and indoor unit is within allowable limits.
• Include space for drainage to ensure condensate flows properly out of the unit when it is in heating mode.
Avoid placing the outdoor unit
in a low-lying area where water could accumulate.
• If the outdoor unit is installed in a highly humid environment (near an ocean, lake, etc.), ensure that the site is well-ventilated and has a lot
of natural light (Example: Install on a rooftop).
Do Not’s
• Where it will be subjected to direct thermal radiation from other heat sources, or an area that would expose the outdoor unit to heat or
steam like discharge from boiler stacks, chimneys, steam relief ports, other air conditioning units, kitchen vents, plumbing vents, and other
sources of extreme temperatures.
• Where high-frequency electrical noise / electromagnetic waves will affect operation.
• Where operating sound from the unit will disturb inhabitants of surrounding buildings.
• Where the unit will be exposed to direct, strong winds.
• Where the discharge of one outdoor unit will blow into the inlet side of an adjacent unit (when installing multiple outdoor units).
Outdoor Unit Condensate Drain Piping
Outdoor unit requires condensate drain piping. Condensate drain pipe is constructed with materials approved by local code. See page 50 for
information in reference to outdoor unit placement.
Planning for Snow and Ice
To ensure the outdoor unit operates properly, certain measures are required in locations where there is a possibility of heavy snowfall or
severe windchill or cold:
1. Prepare for severe winter wind chills and heavy snowfall, even in areas of the country where these are unusual phenomena.
2. Position the outdoor unit so that its airflow fans are not buried by direct, heavy snowfall. If snow piles up and blocks the airflow, the sys-
tem will malfunction.
3. Remove any snow that has accumulated four (4) inches or more on the top of the outdoor unit.
4. In climates that will experience significant snow buildup, mount the outdoor unit on a raised, field-provided platform or stand. The raised
support platform must be high enough to allow the unit to remain above possible snow drifts, and must be higher than the maximum antici-
pated snowfall for the location.
5. Design the mounting base to prevent snow accumulation on the platform in front or back of the unit frame.
6. Provide a field fabricated snow protection hood to keep snow and ice and/or drifting snow from accumulating on the coil surfaces.
7. To prevent snow and heavy rain from entering the outdoor unit, install the condenser air inlets and outlets facing away from direct winds.
8. Consider tie-down requirements in case of high winds or where required by local codes.
48 | APPLICATION GUIDELINES
Single Zone Extended Piping Wall Mounted Engineering Manual
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Planning for Snow and Ice, continued.
CAUTION
When deciding on a location to place the outdoor unit, be sure to choose an area where run-off from defrost will not accumulate and freeze on
sidewalks or driveways, which will create unsafe conditions. Properly install and insulate any drain hoses to prevent the hose from freezing, cracking,
leaking, and causing unsafe conditions from frozen condensate.
PLACEMENT CONSIDERATIONS
Outdoor Unit
Tie-Downs and Lightning Protection
Tie-Downs
• The strength of the roof must be checked before installing the
outdoor units.
• If the installation site is prone to high winds or earthquakes, when
installing on the wall or roof, securely anchor the mounting base
using a field-provided tie-down configuration approved by a local
professional engineer.
• The overall tie-down configuration must be approved by a local
professional engineer.
Always refer to local code when using a wind restraint system.
Lightning Protection
• To protect the outdoor unit from lightning, it must be placed within
the specified lightning safety zone.
• Power cable and communication cable must be installed five (5) feet away from lightning rod.
• A high-resistance ground system must be included to protect against induced lightning or indirect strike.
Building Height (feet)
66 98 148 197
3URWHFWLRQ$QJOHÛ
55 45 35 25
Figure 27: Typical Arrangement of Single Zone Refrigerant Pipe and
Cable(s) in a Utility Conduit.
Ground
Safe zone
Lightning rod
3URWHFWLRQ$QJOHÛaÛ
5 feet
Lightning rod
Underground Refrigerant Piping
Refrigerant pipe installed underground must be routed inside a vapor
tight protective sleeve to prevent insulation deterioration and water
infiltration. Refrigerant pipe installed inside underground
casing must be continuous without any joints. Underground refriger-
ant pipe must be located at a level below the frost line.
Figure 28: Lightning Protection Diagram.
Table 26: Utility Conduit Sizes (Inches).
Table 27: Outdoor Unit Refrigerant Pipe Connections.
Model
Liquid Conn.
(inches)
Vapor Conn.
(inches)
LS243HLV3, LS303HLV3, LS363HLV3 3/8 Flare 5/8 Flare
Table 28: 6DIHW\=RQH6SHFL¿FDWLRQV
1
OD pipe diameter in inches; Values in parenthesis () indicate OD of pipe with insulation jacket.
2
Diameter of pipe with insulation. Thickness of pipe insulation is typical. Actual required thickness will
vary based on surrounding ambient conditions and must be calculated and specified by the design
engineer.
3
Insulation thickness (value in parenthesis) = 3/8 inch.
4
Insulation thickness (value in parenthesis) = 1 inch.
5
Insulation thickness (value in parenthesis) = 3/4 inch.
Liquid Pipe
1
Vapor Pipe
1
3/8 (2.0
2,5
) 1/2 (2.0
2,5
) 5/8 (2-1/8
2,5
) 3/4 (2-1/4
2,5
)
1/4 (1.0)
3
4444
3/8 (1-1/8)
3
4445
1/2 (1-1/2)
4
5555
5/8 (1-5/8)
4
5555
3/4 (1-3/4)
4
5555
Vapor Line
Liquid Line
Min. 14 Gauge
Cable
Power/Communication
Pi
p
e Sleeve
Insulation Material
Insulation
Material
If the building does not include lightning protection, the outdoor unit will be damaged from a lightning strike. Inform the customer of this possibility in
advance.
APPLICATION GUIDELINES | 49
Application Guidelines
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PLACEMENT CONSIDERATIONS
Outdoor Unit
• Avoid installing the outdoor unit where it would be directly
exposed to ocean winds.
• Install the outdoor unit on the side of the building opposite from
direct ocean winds.
• Select a location with good drainage.
• Periodically clean dust or salt particles off of the heat exchanger
with water.
• If the outdoor unit must be placed in a location where it would
be subjected to direct ocean winds, install a concrete windbreak
strong enough to block any winds.
• Windbreak must be more than 150% of the outdoor unit’s height.
There must be 2 to 3-1/2 inches of clearance between the outdoor
unit and the windbreaker for purposes of air flow.
Additional anti-corrosion treatment will need to be applied to the outdoor
unit at oceanside locations.
Ocean winds will cause corrosion, particularly on the condenser and
HYDSRUDWRU¿QVZKLFKLQWXUQFRXOGFDXVHSURGXFWPDOIXQFWLRQRU
LQHI¿FLHQWSHUIRUPDQFH
Figure 29: Oceanside Placement Using Windbreak.
Figure 30: Placement Using Building as Shield.
Oceanside Applications
Use of a Windbreak to Shield from Sea Wind
Sea wind
Windbreak
Use of a Building to Shield from Sea Wind
If a windbreak is not possible, a building or larger structure must be
used to shield the outdoor unit from direct exposure to the sea wind.
The unit must be placed on the side of the building directly opposite
to the direction of the wind as shown in the figure at right.
Sea wind
Sea wind
Building
Building
50 | APPLICATION GUIDELINES
Single Zone Extended Piping Wall Mounted Engineering Manual
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PLACEMENT CONSIDERATIONS
Outdoor Unit
Minimum Clearance Requirements for Single Zone Extended Piping Systems
Proper clearance for the outdoor unit coil is critical for proper unit operation. When installing the outdoor unit, consider service, inlet and
outlet and minimum allowable space requirements as illustrated in the diagrams below.
Specific clearance requirements in the diagram below are for Single Zone Extended Piping Wall Mounted systems. Figure 31 shows the
overall minimum clearances that must be observed for safe operation and adequate airflow around the outdoor unit.
When placing the outdoor unit under an overhang, awning, sunroof or other “roof-like structure”, observe the clearance requirements (as
shown in Cases 1 and 2 in Figure 31) for height in relation to the unit. This clearance ensures that heat radiation from the condenser is not
restricted around the unit.
Adhere to all clearance requirements if installing the unit on a roof. Be sure to level the unit and ensure that the unit is adequately anchored.
Consult local codes for rooftop mounting requirements.
In order to have successful service access to the outdoor unit, see Figure 31 for minimum spacing. When installing multiple outdoor units,
see Cases 4 and 5 in Figure 31 for correct spacing requirements.
Figure 31: Single Zone Extended Piping Outdoor Unit Service Access and Allowable Clearances Diagram.
A
B
D
G
C
G
C
D
E
D
D
B
B
F
1/16 inch
20 inches or less
Case 1
Case 4
Case 2 Case 3
Case 5
20 inches or less
Unit: Inch A B C D E F G
Case 1
Standard 12 24 - 12 - - -
Minimum 4 10 - 4 - - 40
Case 2
Standard - - 20 - - - -
Minimum - - 14 - - - 40
Case 3
Standard - - 20 12 - - -
Minimum - - 14 4 - - -
Case 4
Standard - - - 12 24 - -
Minimum - - - 4 8 79 -
Case 5
Standard - 24 - 12 - - -
Minimum - 10 - 4 - - -
Table 29: Single Zone Extended Piping Outdoor Unit Service Access and Allowable Clearances Diagram Legend.
Do not place the unit where animals
and/or plants will be in the path of the warm
air, or where the warm air and/or noise will
disturb neighbors.
If the outdoor unit is installed between standard and minimum clearances, capacity decreases approximately 10%.
REFRIGERANT DESIGN | 51
Refrigerant Piping Design & Layout Best Practices
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PLACEMENT CONSIDERATIONS
Installing Outdoor Units Indoors
Installing Outdoor Units Indoors
Single Zone Extended Piping Wall Mounted outdoor units are engineered to be mounted outdoors and include technology designed to mini-
mize the negative effects of winter weather’s freezing rain, sleet, and snow. Some building projects, however, necessitate placing the HVAC
outdoor units indoors:
• Lack of ground space.
• Lack of an appropriate outdoor location that meets system design requirements.
• When mounting on the roof is not an option due to a lack of roof space.
• Roof warranty will be voided if mechanical equipment is placed on the membrane.
• On retrofit projects, a former chiller / boiler / air handler equipment room, mechanical area, or penthouse already exists.
• To curtail the potential need for redundant zone heating devices such as wall-fin radiators or duct heaters.
• In extremely cold environments where there is a significant amount of run-time at temperatures well below freezing outside the outdoor unit
ambient air temperature range published in this engineering manual.
Benefits of Installing Outdoor Units Indoors
• Shelters the outdoor unit from direct exposure to prevailing winds that decrease the heating capability of the outdoor unit.
• Protects equipment from freezing precipitation and / or potential ice build-up that could hinder unit operation.
• Maintains coil heat transfer efficiency by reducing the number of and shortening the cycle time for defrost operation.
• Easier maintenance and servicing during inclement weather.
• When mounted in a fully enclosed space, limiting the ambient air temperature will allow the Single Zone Extended Piping Wall Mounted
system designer to eliminate oversizing.
• The outdoor unit to compensate for loss of capacity at low ambient temperatures.
• Will also curtail the need to provide inefficient redundant zone heating devices such as wall-fin radiators and second-stage ancillary heating
devices.
Design Considerations Include:
• Enclosure types and elements such as louvers (see next page), rain hoods, dampers and controls, heating methods and sizing of heating
devices.
• Heating strategies.
• Duct design.
• Condensate handling.
General Guidelines
• Follow ASHRAE 62.1 design guidelines.
• Depending on the project / application, a roof over the outdoor units in combination with a wind break will be all that is necessary.
• Consider the potential for snow accumulation near louvers / roof openings. Outside air intakes and discharge ducts/louvers must be engi-
neered to clear anticipated snow accumulation levels by at least one (1) foot.
• In situations where operation is anticipated at temperatures lower than the product’s minimum operating temperature, ancillary heat must
be provided to heat the outdoor unit coils to ensure continuous compressor operation and heating.
•
It will be necessary to use a field-fabricated air guide to prevent discharge air from short-cycling back to the coil inlet.
• Consider the direction of prevailing winds and opening placement. If possible, locate inlet openings upwind of discharge openings and other
exhaust outlets.
• When inlet and outlet openings are placed on the same wall, minimum distance between the two openings must be approximately three (3)
feet (minimum distance varies significantly with variations in outlet opening face velocity).
• If roof-mounted ventilation openings are used, strategically locate the inlet ventilation opening(s) upwind of the outlet opening(s).
• Discharge and supply ductwork must be designed to avoid weather related long periods of water entrainment and the potential for microbial
growth.
52 | APPLICATION GUIDELINES
Single Zone Extended Piping Wall Mounted Engineering Manual
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PLACEMENT CONSIDERATIONS
Installing Outdoor Units Indoors
1. Outdoor Unit Enclosure: Manual Door Open Type.
2. Louver Angle: No More Than 15° Horizontally.
3. Space Between Louvers: More than 4 inches (Recommend).
4. Louver Shape: Wing or Plane Type.
Inside
Outside
Air flow passing through
the louver blade backwards
can generate noise.
In
side
Maximum 15°
(Recommended)
More than 4 in.
(Recommended)
Louver
• Open Rate and Inlet must be taken into consideration when design-
ing the louvered outdoor unit enclosure.
• 'RQRWXVH³6´W\SHORXYHUV
If the Louver Open Rate is Too Small
1. Noise can occur because of the increased air velocity passing
through the louver blade.
2. Noise can occur from louver blade vibrations.
3. A drop in outdoor unit fan performance (excess static pressure
can cause a drop in outdoor unit performance and heat exchanger
efficiency).
4. If the louver open rate is too small or there is insufficient air flow
exchange, the air conditioner might stop operating.
Figure 32: Louver Recommendations.
Figure 33: Using “S” Type Louvers.
Provide a means to drain the condensate generated during heating mode and defrost cycle in addition to rainwater that infiltrates the inlet
louver enclosed area.
• Install a field-provided drain pan under the outdoor units and provide a path to a nearby floor drain.
• If the ambient air temperature is expected to drop below 32°F in the enclosure, heat the bottom surface of the pan, drain line, and floor
drain so that the condensate does not freeze before reaching the drain.
Louver Recommendations for Outdoor Unit Enclosure
Allow for ventilation intake and exhaust air based on maximum outdoor unit fan capacity.
• Select the size, type and orientation of architectural louvers with adequate “net free area” face velocity to ensure the total external static
pressure from the outdoor unit fan does not exceed design limitations (see specification data tables).
• No obstructions must be placed in front of the louver that could hamper the free flow (throw) of air.
• Roof top openings and / or discharge and supply louvers must be equipped with screens to prevent bird and insect infiltration.
For louver recommendations, see below and on the next page.
As always, the best solution for each project balances acceptable heating performance (considering local weather conditions), capital costs,
life cycle energy consumption, and limitations set forth by local building codes.
When deciding on a location to place the outdoor unit, be sure to choose an area where run-off from defrost will not accumulate and freeze on side-
walks or driveways which will create unsafe conditions.
CAUTION
APPLICATION GUIDELINES | 53
Application Guidelines
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PLACEMENT CONSIDERATIONS
Installing Outdoor Units Indoors
Formula
• Total Louver Dimension (Excluding Frame) (A) = 3.9 feet x 6.2 feet = 24.2 ft.
2
• Area Blocked by Outdoor Unit (Discharge) (B) = 2.6 feet x 2.8 feet = 7.41 ft.
2
• Inlet Louver Dimension (A - B) = 16.8 ft.
2
• Equivalent Inlet Dimension (Open Rate 80%) = 16.8 ft.
2
x 0.8 = 13.44 ft.
2
• Equivalent Inlet Airflow = 13.44 ft.
2
x 8.2 ft./s x 60 sec./min. = 6,612 ft.
3
/min.
• Equivalent Inlet Airflow / Discharge Airflow = 6,612 ft.
3
/min. / 2,119 ft.
3
/min. = 312% (Within Allowable Limits)
Confirming Air Flow Rate / Total Opening Rate
• Example: LSU243HLV3
• Discharge Airflow Rate: 2,119 ft.3/min.
• Velocity of Outlet Air: 16.4 ft./s
• Velocity of Inlet Air: 8.2 ft./s
• Open Rate = 80% or More
• Inlet airflow must match or exceed discharge airflow.
• Separate inlet airflow from discharge airflow to
prevent recirculation.
Figure 34: Open Rate by Louver Radian Formula.
Open Rate = Effective Face Area (Af)
Total Face Area (A)
Side View
ho = h * COS
Total Area (A) = H * W
Number of Open Spaces (N) = (Number of Louvers - 1)
Effective Area (Af) = ho * W * N
Louver Open Rate (n) = Af / A
Af = A * n
Effective Cross Section Area
ho
h
W
Front View
H
Open Rate by Louver Radian
Figure 35: Example of Installing Outdoor Unit Indoors.
55-1/8
47-1/4
74-13/16
Unit: Inch
Louver Dimensions Air Guide Duct on
Outdoor Unit
37-13/32
32-3/4
Outdoor Unit
Dimensions
54 | REFRIGERANT DESIGN
Single Zone Wall Mounted Extended Piping Engineering Manual
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REFRIGERANT PIPING DESIGN
Design Guideline Summary
Device Connection Limitations
Single-zone systems consist of one outdoor unit and one indoor unit. One of the
most critical elements of a single zone system is the refrigerant piping. The table
below lists pipe length limits that must be followed in the design of a Single Zone
Extended Piping Wall Mounted refrigerant pipe system. Refer to the figure for
maximum length and elevation of piping.
• Capacity is based on standard length.
• Equivalent Pipe Length = Actual Pipe Length + Number of Bends x 0.3.
• Additional Refrigerant Charge Calculation : X (g) = [ (Refrigerant Pipe Length) - (No Charge Pipe Length) ] × (Additional Refrigerant).
• 7KHUHLVQRQHHGWRDGGUHIULJHUDQWLIHTXLYDOHQWSLSHLVOHVVWKDQWKH³SLSLQJOHQJWKZLWKQRDGGLWLRQDOUHIULJHUDQW´LQWKHWDEOHDERYH
Table 30: Single Zone Extended Piping Wall Mounted Refrigerant Piping System Limitations.
Model Numbers
LS243HLV3 LS303HLV3 LS363HLV3
Pipe Sizes
Vapor
5/8 inches 5/8 inches 5/8 inches
Liquid
3/8 inches 3/8 inches 3/8 inches
Pipe Length
(ELF = Equivalent Length of
pipe in Feet)
Standard Piping Length
24.6 24.6 24.6
Piping Length with No Additional Refrigerant
24.6 24.6 24.6
Longest Total Equivalent Piping Length
164.0 164.0 164.0
Shortest Total Equivalent Piping Length
9.8 9.8 9.8
Distance between fittings and indoor units or outdoor units
LQFKHV LQFKHV LQFKHV
Elevation
(All Elevation Limitations are
Measured in Actual Feet)
If outdoor unit is above indoor unit
98.4 98.4 98.4
If outdoor unit is below indoor unit
98.4 98.4 98.4
Additional Refrigerant Needed (oz./ft)
0.38 0.38 0.38
Figure 36: Single Zone Extended Piping Wall Mounted
System Layout.
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
Max Length = A
Max Elevation = B
Unit = Feet
Model Numbers
Refrigerant Piping Length (feet)
16.4 24.6 32.8 41 49.2 65.6 82 98.4 114.8 131.2 147.6 164.0
LS243HLV3
(LSN243HLV3 / LSU243HLV3)
Additional
Refrigerant
Charge (oz.)
0 0 3.1 6.2 9.3 15.6 21.8 28.0 34.3 40.5 46.7 53.0
LS303HLV3
(LSN303HLV3 / LSU303HLV3)
0 0 3.1 6.2 9.3 15.6 21.8 28.0 34.3 40.5 46.7 53.0
LS363HLV3
(LSN363HLV3 / LSU363HLV3)
0 0 3.1 6.2 9.3 15.6 21.8 28.0 34.3 40.5 46.7 53.0
Table 31: Single Zone Wall Mounted Extended Piping Additional Refrigerant by Piping Length (oz.).
LG Electronics, U.S.A., Inc.
Air Conditioning Technologies
4300 North Point Parkway
Alpharetta, Georgia 30022
www.lghvac.com
EM_SZ_WallMounted_ExtendedPiping_HLV3_03_2020
Supersedes: EM_SZ_WallMounted_ExtendedPiping_HLV_11_18
EM_SZ_WallMounted_ExtendedPiping_HLV_12_16
EM-SZ-HighEfficiencyWallmount-HSV3-HV3-HLV-9-16
EM-SZ-HighEfficiencyWallmount-HSV3-HV3-HLV-6-16
DFS-EM-AH-001-US 014D10
20001747 ISO 9001: 2008
LG ELECTRONICS INC.
