LG LC248HV Installation and operation manual

SINGLE-ZONE FOUR-WAY
CEILING-CASSETTE SYSTEM
ENGINEERING MANUAL
Single-Zone Four-Way
Ceiling-Cassette
Heat Pump Systems
3/4 to 3-1/2 Tons
LC188HV4 (18,000 Btu/h) LC368HV (36,000 Btu/h)
LC428HV (42,000 Btu/h)
LC098HV4 (9,000 Btu/h)
LC128HV4 (12,000 Btu/h)
LC248HV (24,000 Btu/h)

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, best
practices, building ventilation, owner’s, and service manuals, visit
www.lghvac.com.

INTRODUCTION | 3
Introduction
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
TABLE OF CONTENTS
TABLE OF SYMBOLS
DANGER 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.
Nomenclature.................................................................................................................................................................................................................. 4
LG Air Conditioner Technical Solution (LATS) .........................................................................................................................................................5-6
Four-Way Ceiling-Cassette Product Data................................................................................................................................................................7-43
0HFKDQLFDO6SHFL¿FDWLRQV .........................................................................................................................................................................................8-9
General Data ......................................................................................................................................................................................................... 10-12
Electrical Data ............................................................................................................................................................................................................ 13
Functions, Controls, and Options ............................................................................................................................................................................... 14
Outdoor Unit Dimensions ......................................................................................................................................................................................15-17
Indoor Unit Dimensions .........................................................................................................................................................................................18-21
Acoustic Data ........................................................................................................................................................................................................ 22-25
Refrigerant Flow Diagrams.................................................................................................................................................................................... 26-29
Wiring Diagrams.................................................................................................................................................................................................... 30-35
Electrical Connections........................................................................................................................................................................................... 36-38
Air Velocity and Temperature Distribution.............................................................................................................................................................. 39-41
Accessories ...........................................................................................................................................................................................................42-43
Four-Way Ceiling-Cassette Performance Data ..................................................................................................................................................... 44-57
Cooling Capacity ................................................................................................................................................................................................... 45-50
Heating Capacity ................................................................................................................................................................................................... 51-53
Maximum Heating Capacity................................................................................................................................................................................... 54-56
Equipment Selection Procedure............................................................................................................................................................................ 57-58
Application Guidelines............................................................................................................................................................................................ 59-71
Placement Considerations..................................................................................................................................................................................... 60-67
Installing Outdoor Units Indoors ............................................................................................................................................................................68-70
Refrigerant Piping Design........................................................................................................................................................................................... 71

4|INTRODUCTION
Four-Way Ceiling-Cassette System Engineering Manual
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
UNIT NOMENCLATURE
C188 H
System Type:
Style:
SV = High Efficiency Inverter
VP = Gallery
YV = Premier
EV = Mega
XV = Mega 115V
V = Standard Inverter
T = Thermostat Compatible
LV = Extended Piping
Nominal Capacity
(Nominal cooling capacity in Btu/h):
Frame Type:
A: Art Cool™
S: Standard
C: Four-Way Ceiling-Cassette
D: Ceiling-Concealed Duct (Low Static)
H: Ceiling-Concealed Duct (High Static)
V: Vertical-Horizontal Air Handling
L = LG
9 = 9,000
12 = 12,000
18 / 188 / 189 = 18,000
24 / 248 / 249 = 24,000
30 = 30,000
36 / 368 / 369 = 36,000
42 / 428 / 429 = 42,000
48 = 48,000
54 = 54,000
L V 4N
N: Indoor Unit
U: Outdoor Unit
No N or U: System
H = Heat Pump
Generation:
Indoor Units and Outdoor Units

INTRODUCTION | 5
Introduction
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
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.

6|INTRODUCTION
Four-Way Ceiling-Cassette System Engineering Manual
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
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.

PRODUCT DATA
Mechanical Specifications on page 8
General Data on page 10
Electrical Data on page 13
Functions, Controls, and Options on page 14
Dimensions on page 15
Acoustic Data on page 22
Refrigerant Flow Diagrams on page 26
Wiring Diagrams on page 30
Electrical Connections on page 36
Air Velocity and Temperature Distribution on page 39
Accessories on page 43

8|PRODUCTDATA
Four-Way Ceiling-Cassette System Engineering Manual
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
MECHANICAL SPECIFICATIONS
General
System
LG single zone four-way ceiling cassette system comprises of a
single frame outdoor unit connected to a single indoor unit with a
single refrigerant circuit. An LG single zone four-way ceiling cassette
is a system that can operate in either cooling or heating mode.
The system is capable of changing mode within a maximum time
of three (3) minutes to ensure indoor 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). The system components comply with
CSA Standard for Safety and bear the CSA label. Wiring in these
units are in accordance with the national Electrical Code (NEC).
LG single zone four-way ceiling cassette systems have published
performance ratings certified by AHRI (Air-Conditioning, Heating,
and Refrigeration Institute) and are listed in the AHRI Standard 210 /
240 certified product directory.
Outdoor Unit
The outdoor units have sound levels not exceeding 54 dB(A) tested
in an anechoic chamber under ISO Standard 3745.
Indoor Unit
The indoor units have sound ratings no higher than 47 dB(A) as
tested per ISO Standard 3745.
Temperature Ranges
9,000 and 12,000 Btu/h Ceiling Cassette Operating Ranges
• Operating ranges for outdoor units of 0°F to +118°F (DB) for cool-
ing (Cooling range can be extended from 0°F down to -4°F using
the Low Ambient Wind Baffle Kit [sold separately]); -4°F to +64°F
(WB) for heating.
• Operating ranges for indoor units of 57°F to 77°F (WB) for cooling;
59°F to 81°F (DB) for heating.
• Indoor unit temperature setting range of 65°F to 86°F (DB) for
cooling; 61°F to 86°F (WB) for heating.
18,000, 24,000, 36,000, and 42,000 Btu/h Ceiling Cassette
Operating Ranges
• Operating ranges for outdoor units of 5°F to +118°F (DB) for cool-
ing (Cooling range can be extended from 5°F down to -4°F using
the Low Ambient Wind Baffle Kit [sold separately]); -4°F to +64°F
(WB) for heating.
• Operating ranges for indoor units of 57°F to 77°F (WB) for cooling;
59°F to 81°F (DB) for heating.
• Indoor unit temperature setting range of 65°F to 86°F (DB) for
cooling; 61°F to 86°F (WB) for heating.
Casing / Frame
Outdoor Unit
The outdoor condensing unit case is constructed from pre-coated
metal (PCM) that has been tested in accordance with ASTM B-117
salt spray procedure for a
minimum of 1,000 hours.
Case has a removable panel
to allow access to major
internal components, and
legs to secure the unit during
installation.
Indoor Unit
The indoor unit case is
constructed of a galvanized
steel plate designed to recess
in the ceiling, and has a
surface mounted concentric
grille on the bottom of the
unit. Unit has four supply air
outlets and one return air
inlet. The supply air outlet
has four-directional slot
diffusers, each equipped
with an independent oscillating motorized guide vane to change
airflow direction. A guide vane algorithm sequentially changes the
predominant discharge airflow direction in counterclockwise pattern,
or can be used to lock each guide vane independently in a field-
adjusted fixed position. The four vanes can be individually adjusted
from the wired remote controller to customize the airflow pattern
for the conditioned space. A setting in the cooling and heating
modes can cycle the vanes up and down for uniform / random air
distribution.
A required architectural grille is sold as a separate required
accessory. The four-way grille is off-white acrylonitrile butadiene
styrene (ABS) polymeric resin with a tapered trim edge.
Refrigerant System
The system is designed for use with R410A refrigerant, and consists
of a single refrigeration circuit. The refrigeration circuit is pressure-
tested at the factory and shipped with a holding charge of helium
gas. The outdoor unit is provided with factory installed components,
including a refrigerant strainer, accumulator, four-way reversing
valve, electronic expansion valve (EEV), high and low side charging
ports, service valves, and interconnecting piping. All refrigerant lines
from the outdoor unit to the indoor unit are field-installed and must
be insulated separately.
Compressors
The 9,000 ~ 24,000 Btu/h outdoor units are equipped with one
hermetically sealed, digitally controlled, inverter-driven twin rotary
compressor to modulate capacity (modulation in 1 Hz increments).
The 36,000 and 42,000 Btu/h outdoor units are equipped with
one hermetically sealed, digitally controlled, inverter-driven scroll
compressor to modulate capacity (modulation in 1 Hz increments).
Teflon coated bearings, overcurrent protection and vibration isolation
are integrated with the compressor.
Figure 3: Four-Way Ceiling Cassette
System (LC098HV4 and LC128HV4
Models).

PRODUCT DATA | 9
Product Data
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
MECHANICAL SPECIFICATIONS
Frequency ranges for the 9,000 ~ 24,000 Btu/h outdoor
units are:
9k Btu/h = 20 Hz to 100 Hz
12k Btu/h = 20 Hz to 100 Hz
18k Btu/h = 15 to 80 Hz Cooling; 15 to 100 Hz Heating
24k Btu/h = 15 to 80 Hz Cooling; 15 to 100 Hz Heating
Frequency ranges for the 36,000 and 42,000 Btu/h outdoor
units are:
36k Btu/h = 15 to 120 Hz Cooling; 15 to 130 Hz Heating
42k Btu/h = 20 Hz to 100 Hz
Coil
Outdoor Unit
Heat pump outdoor unit coils are made of nonferrous louvered
aluminum fins protected with an integral coil guard. The coil for each
outdoor unit has a minimum of 14 fins per inch (FPI); heat exchanger
has two rows. The coil fins have a factory applied corrosion resistant
GoldFin™ material with hydrophilic coating tested in accordance with
ASTM B-117 salt spray test procedure for a minimum of 1,000 hours.
Coils are factory tested to a pressure of 551 psig.
Indoor Unit
Indoor unit coils are factory built and are comprised of aluminum
fins mechanically bonded to copper tubing. Each indoor unit has
a minimum of two rows of coils, which are pressure tested to 551
psig at the factory. Each unit is provided with a factory installed
condensate drain pan below the coil.
Fans and Motors
Outdoor Unit
The 9,000 Btu/h (LUU097HV), 12,000 Btu/h (LUU127HV), 18,000
Btu/h (LUU189HV),and 24,000 Btu/h (LUU249HV) outdoor units
include one direct drive, variable speed axial / propeller type fan
with a horizontal air discharge; the 36,000 Btu/h (LUU369HV) and
42,000 Btu/h (LUU429HV) include two fans. Fan blades are made
of Acrylonitrile Butadiene Styrene (ABS) material, and have a
Brushless Digitally Controlled (BLDC) fan motor. The fan motor has
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.
Indoor Unit
All of the indoor units have a single, direct-drive, turbo fan
manufactured of high-strength ABS HT-700 polymeric resin; the fans
are statically and dynamically balanced. The fan motor is brushless
digitally controlled (BLDC) with permanently lubricated and sealed
ball bearings. The fan / motor assembly is mounted on vibration-
attenuating rubber grommets. Fan speed is controlled using a
microprocessor-based direct digital control algorithm that provides
pre-programmed, field-selectable fixed or auto fan speeds in the
Heating and Cooling modes.
The indoor fan has Low, Med, High,
Power Cool and Auto settings for
Cooling mode; and has Low, Med,
High, and Auto settings for Heating
mode. Auto setting adjusts the fan
speed based on the difference
between the controller set-point and
space temperature.
Air Filter -
Indoor Unit
Return air is filtered with a factory-
supplied, removable, washable
filter accessible from the bottom of
the unit. For 2’ x 2’ cassettes the
removable washable filter size is 14”
x 14” x 1.”
For 3’ x 3’ cassettes the removable
washable filter size is 20.5” x 20.5”
x 1.”
Electrical
The system was designed to
operate using 208–230/60/1 power
with voltage variances of ±10% and includes overcurrent protection.
The indoor unit is powered through the outdoor unit.
Controls
Indoor and outdoor units are factory wired with necessary electrical
control components, printed circuit boards, thermistors, sensors,
terminal blocks, and lugs for power wiring. Factory installed
microprocessor controls in the outdoor unit and indoor unit shall
perform functions to efficiently operate the single zone system,
communicating via a 14 AWG four-conductor, stranded, shielded
or unshielded (if shielded, must be grounded to the chassis at the
outdoor unit only) power/transmission cable (and must comply
with applicable local and national codes. Microprocessor-based
algorithms provide component protection, soft-start capability,
refrigeration system pressure, temperature, defrost, and ambient
control. System can be operated through a handheld wireless
controller supplied with the four-way ceiling cassette indoor unit.
Condensate Lift/Pump
The indoor unit is provided with a factory installed and wired
condensate lift/pump capable of providing a maximum 31-1/2 inch lift
from the bottom surface of the unit. Drain pump has a safety switch
to shut off the indoor unit if the condensate rises too high in the drain
pan.
Figure 4: Four-Way Ceiling
Cassette System (LC368HV,
LC428HV Models).

10 | PRODUCT DATA
Four-Way Ceiling-Cassette System Engineering Manual
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
Outdoor Unit Model Indoor Unit Model Controller
LUU097HV
LUU127HV
LCN098HV4
LCN128HV4
PQWRHQ0FDB
LUU189HV LCN188HV4 PQWRHQ0FDB
LUU249HV LCN248HV PQWRHQ0FDB
LUU369HV
LUU429HV
LCN368HV
LCN428HV
PQWRHQ0FDB
The following table shows the available outdoor and indoor unit, along with the factory provided controller.
Table 1: Four-Way Ceiling Cassette System Pairing Table
GENERAL DATA
Pairing Table

PRODUCT DATA | 11
Product Data
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
GENERAL DATA
Type Single Zone 2 x 2 Four-Way Ceiling Cassette
System (Model) (Indoor Unit / Outdoor Unit) LC098HV4
(LCN098HV4 / LUU097HV) LC128HV4 (LCN128HV4 / LUU127HV) LC188HV4 (LCN188HV4 / LUU189HV)
Ceiling Grille Model Number (Sold Separately) PT-UQC / PT-QCHW0 PT-UQC / PT-QCHW0 PT-UQC / PT-QCHW0
Cooling Capacity (Min/Rated/Max) (Btu/h) 3,600 ~ 9,000 ~ 9,900 3,400 ~ 11,100 ~ 12,400 7,700 ~ 18,000 ~ 24,800
Cooling Power Input1(kW) 0.19 ~ 0.66 ~ 0.83 0.25 ~ 0.88 ~ 1.1 0.54 ~ 1.44 ~ 2.60
EER2 (OD 95°F) 13.65 12.6 12.5
SEER2 20.2 19.4 20.5
Heating Capacity (Min/Rated/Max) (Btu/h) 4,400 ~ 11,000 ~ 12,100 2,800 ~ 14,000 ~ 15,500 6,500 ~ 18,500 ~ 23,400
Heating Power Input1(kW) 0.15 ~ 0.83 ~ 1.05 0.22 ~ 1.19 ~ 1.5 0.50 ~ 1.95 ~ 2.60
COP (OD 47°F) 3.88 3.44 2.78
HSPF2 10.55 10.35 9.70
Rated Low Heating Capacity (Btu/h)
Outdoor 17°F (WB)/Indoor 70°F (DB) 7,000 9,100 12,700
Low COP (OD 17°F) 2.92 2.7 2.45
Maximum Heating Capacity (Btu/h)
Outdoor 17°F (DB)/Indoor 70°F (DB) 11,000 11,900 17,000
Outdoor 5°F (DB)/Indoor 70°F (DB) 10,100 10,700 16,200
Outdoor -4°F (DB)/Indoor 70°F (DB) 9,040 9,280 15,250
Power Supply V, Ø, Hz2208-230 / 1 / 60
Outdoor Unit Operating Range
Cooling (°F DB) 0 to +11860 to +11865 to +1186
Heating (°F WB) -4 to +64 -4 to +64 -4 to +64
Indoor Unit Operating Range
Cooling (°F WB) 57 to 77 57 to 77 57 to 77
Heating (°F DB) 59 to 81 59 to 81 59 to 81
Indoor Temperature Setting Range
Cooling (°F DB) 65 to 86 65 to 86 65 to 86
Heating (°F WB) 61 to 86 61 to 86 61 to 86
Unit Data
Refrigerant Type3/ Refrigerant Control R410A / EEV
Indoor Unit Sound Pressure Level ±1 dB(A) (H/M/L)436 / 33 / 30 38 / 35 / 32 41 / 39 / 36
Outdoor Unit Sound Pressure Level ±1 dB(A) (Cool/Heat)447 / 51 49 / 52 48 / 52
Indoor Unit Net / Shipping Weight (lbs.) 31 / 37 31 / 37 31.5 / 40.0
Outdoor Unit Net / Shipping Weight (lbs.) 82 / 89 82 / 89 127.8 / 140.0
Grille Net / Shipping Weight (lbs.) 7 / 9 7 / 9 7 / 9
Power Wiring / Communications Cable (No. x AWG)24 x 14 4 x 14 4 x 14
Compressor (Type x Qty.) Twin Rotary x 1 Twin Rotary x 1 Twin Rotary x 1
Dehumidification Rate (pts./hr.) 1.6 2.47 3.3
Fan
Indoor Unit Type x Qty. / Outdoor Unit Type x Qty. Turbo x 1 / Axial x 1
Motor / Drive Brushless Digitally Controlled / Direct
Airflow Rate
Indoor Unit (H / M / L [CFM]) 300 / 265 / 230 335 / 283 / 247 460 / 424 / 388
Outdoor Unit (CFM) 988 988 2,048
Piping
Liquid (in.) Connection Size 1/4 1/4
Pipe Size 1/4 3/8
Vapor (in.) Connection Size 3/8 1/2
Pipe Size 3/8 5/8
Indoor Unit Condensate Drain O.D. / I.D. (in.) 1-1/4 / 1 1-1/4 / 1
Additional Refrigerant Charge (oz./ft.) 0.22 0.43
Maximum Pipe Length (ft.) 66 164
Piping Length5(no additional refrigerant, ft.) 24.6 24.6
Maximum Elevation Difference (ft.) 49 98.4
Table 2: Four-Way 2 x 2 Ceiling Cassette System General Data.
EEV: Electronic Expansion Valve, IDU: Indoor Unit, ODU: Outdoor Unit. Unit comes with a dry helium charge.
This data is rated 0 ft above sea level, with 24.6 ft of refrigerant line per indoor unit and a 0 ft level
difference between outdoor and indoor units.
Cooling capacity rating obtained with air entering the indoor coil 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 60ºF wet bulb
(WB); and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
1Power Input is rated at high speed.
2All power wiring/communication cables from ODU to IDU are field supplied and are to be minimum 14
AWG, 4-conductor, stranded, shielded or unshielded (if shielded, must be grounded to chassis at ODU
only), and must comply with applicable local and national codes.
3Take 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.
4Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745.
5Piping lengths are equivalent.
6Cooling range can be extended from 0°F or 5°F down to -4°F using the Low Ambient Wind Baffle Kit
(sold separately).

12 | PRO DUCT DATA
Four-Way Ceiling-Cassette System Engineering Manual
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
GENERAL DATA
Type Single Zone 3 x 3 Four-Way Ceiling Cassette
System (Model) (Indoor Unit / Outdoor Unit) LC248HV
(LCN248HV / LUU249HV) LC368HV (LCN368HV / LUU369HV) LC428HV (LCN428HV / LUU429HV)
Ceiling Grille Model Number (Sold Separately) PT-UMC1 PT-UMC1 PT-UMC1
Cooling Capacity (Min/Rated/Max) (Btu/h) 9,600~24,000~28,000 14,400~36,000~42,000 16,800~42,000~48,700
Cooling Power Input1(kW) 0.48 ~ 1.90 ~ 3.04 0.72 ~ 2.88 ~ 3.90 1.16 ~ 4.07 ~ 5.5
EER (OD 95°F) 12.60 12.50 10.32
SEER 20.0 19.0 17.8
Heating Capacity (Min/Rated/Max) (Btu/h) 10,800~27,000~30,000 16,000~40,000~42,200 18,800~47,000~49,800
Heating Power Input1(kW) 0.58 ~ 2.30 ~ 3.20 0.80 ~ 3.20 ~ 4.20 1.17 ~ 4.09 ~ 4.93
COP (OD 47°F) 3.52 3.66 3.37
HSPF 10.5 9.5 9.0
Rated Low Heating Capacity (Btu/h)
Outdoor 17°F (WB)/Indoor 70°F (DB) 17,500 24,000 26,000
Low COP (OD 17°F) 2.73 2.69 2.52
Maximum Heating Capacity (Btu/h)
Outdoor 17°F (DB)/Indoor 70°F (DB) 26,000 38,000 41,500
Outdoor 5°F (DB)/Indoor 70°F (DB) 23,600 35,000 40,000
Outdoor -4°F (DB)/Indoor 70°F (DB) 20,760 31,450 38,230
Power Supply V, Ø, Hz2208-230 / 1 / 60
Outdoor Unit Operating Range
Cooling (°F DB) 5 to +1186
Heating (°F WB) -4 to +64
Indoor Unit Operating Range
Cooling (°F WB) 57 to 77
Heating (°F DB) 59 to 81
Indoor Temperature Setting Range
Cooling (°F DB) 65 to 86
Heating (°F WB) 61 to 86
Unit Data
Refrigerant Type3/ Refrigerant Control R410A / EEV
IDU Sound Pressure Level ±1 dB(A) (H/M/L)438 / 36 / 34 46 / 43 / 40 47 / 44 / 41
ODU Sound Pressure Level ±1 dB(A) (Cool/Heat)448 / 52 52 / 54 52 / 54
Indoor Unit Net / Shipping Weight (lbs.) 47.2 / 57.3 54.2 / 68.3 54.2 / 68.3
Outdoor Unit Net / Shipping Weight (lbs.) 130.0 / 143.3 198.9 / 223.1 198.9 / 223.1
Grille Net / Shipping Weight (lbs.) 14 / 21 14 / 21 14 / 21
Power Wiring / Comm. Cable (No. x AWG)24 x 14
Compressor (Type x Qty.) Twin Rotary x 1 Scroll x 1
Dehumidification Rate (pts./hr.) 4.5 7.6 10.1
Fan
Indoor Unit Type x Qty. / Outdoor Unit Type x Qty. Turbo x 1 / Propeller x 1 Turbo x 1 / Propeller x 2
Motor / Drive Brushless Digitally Controlled / Direct
Airflow Rate
Indoor Unit (H / M / L [CFM]) 600 / 530 / 459 1,059 / 883 / 706 1,165 / 989 / 777
Outdoor Unit (CFM) 2,048 3,884 3,884
Piping
Liquid (in.) Connection Size 3/8 3/8 3/8
Pipe Size 3/8 3/8 3/8
Vapor (in.) Connection Size 5/8 5/8 5/8
Pipe Size 5/8 5/8 5/8
Indoor Unit Condensate Drain O.D. / I.D. (in.) 1-1/4 / 1
Additional Refrigerant Charge (oz./ft.) 0.43
Maximum Pipe Length (ft.) 164 246
Piping Length5(no additional refrigerant, ft.) 24.6
Maximum Elevation Difference (ft.) 98.4
Table 3: Four-Way 3 x 3 Ceiling Cassette System General Data.
EEV: Electronic Expansion Valve, IDU: Indoor Unit, ODU: Outdoor Unit. Unit comes with a dry helium charge.
This data is rated 0 ft above sea level, with 24.6 ft of refrigerant line per indoor unit and a 0 ft level
difference between outdoor and indoor units.
Cooling capacity rating obtained with air entering the indoor coil 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 60ºF wet bulb
(WB); and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
1Power Input is rated at high speed.
2All power wiring/communication cables from ODU to IDU are field supplied and are to be minimum 14
AWG, 4-conductor, stranded, shielded or unshielded (if shielded, must be grounded to chassis at ODU
only), and must comply with applicable local and national codes.
3Take 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.
4Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745.
5Piping lengths are equivalent.
6Cooling range can be extended from 5°F down to -4°F using the Low Ambient Wind Baffle Kit (sold
separately).

PRODUCT DATA | 13
Product Data
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
Nominal
Tons Unit Model No. Hertz Voltage
Voltage
Range
(Min. to Max.)
MCA MOP Compressor
Quantity
Compressor
Motor RLA
(Cooling)
Condenser Fan Motor(s)
Condenser
Fan Quantity.
Condenser Fan
Motor FLA
2 x 2 Four-Way Ceiling Cassettes
3/4 LUU097HV
60 208 - 230 187 - 253
11.9 15 19.0 10.25
1 LUU127HV 12.3
1-1/2 LUU189HV 20 30 13.5 1.6
3 x 3 Four-Way Ceiling Cassettes
2 LUU249HV
60 208 - 230 187 - 253
20 30
1
13.5 1 1.6
3 LUU369HV 32 40 22 2 1.6 x 2
3-1/2 LUU429HV
Voltage tolerance is ±10%.
Maximum allowable voltage unbalance is 2%.
RLA = Rated Load Amps.
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.
Table 4: Electrical Data.
ELECTRICAL DATA

14 | PRODUCT DATA
Four-Way Ceiling-Cassette System Engineering Manual
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
Table 5: Functions, Controls and Options.
System Type 2x2 Ceiling Cassette 3x3 Ceiling Cassette
$LUÀRZ
Air Supply Outlets 44
Airflow Direction Control (Up and Down) Auto Auto
Auto Swing (Up and Down) ¥¥
Airflow Steps (Fan / Cool / Heat) 4 / 5 / 4 4 / 5 / 4
Comfort Air (Random Fan Speed) ¥¥
Jet Cool ¥¥
Swirl Wind ¥¥
Filters
Washable Anti-fungal1¥¥
Operation
Drain Pump ¥¥
High Ceiling Operation2oo
Auto Elevation Grille2Xo
Hot Start ¥¥
Self Diagnostics ¥¥
Auto Changeover ¥¥
Auto Restart ¥¥
Child Lock ¥¥
Forced Operation ¥¥
Sleep Mode ¥¥
Timer (on/off) ¥¥
Weekly Schedule ¥¥
Two Thermistor Control ¥¥
Reliability
Defrost / Deicing ¥¥
High Pressure Sensor ¥¥
Phase Protection XX
Restart Delay (3-minutes) ¥¥
Self Diagnosis ¥¥
Soft Start ¥¥
Conve-
nience
Night Quiet Operation ¥¥
Mode Lock ¥¥
Pump Down (Forced Cooling Operation) ¥¥
Network Solution (LGAP) ¥¥
Remote
Controllers
Programmable Controllers (MultiSITE CRC1 / CRC1+) o (PREMTBVC0 / PREMTBVC1) o (PREMTBVC0 / PREMTBVC1)
Simple Remote Controller o (PREMTC00U) o (PREMTC00U)
Premium Remote Controller o (PREMTA000) o (PREMTA000)
Wireless Handheld Remote Controller ¥34:5+4)'% ¥34:5+4)'%
Remote Temperature Button Sensor o (ZRTBS01) o (ZRTBS01)
Dry Contact o (PDRYCB100 / 320 / 400) o (PDRYCB100 / 320 / 400)
Central Controllers /
Integration Solutions
AC Smart 5 o (PACS5A000) o (PACS5A000)
ACP 5 o (PACP5A000) o (PACP5A000)
PI-485 o (PMNFP14A1) o (PMNFP14A1)
MultiSITE Communications Manager o (PBACNBTR0A) o (PBACNBTR0A)
MultiSITE VM3 o (PBACNBTR1A) o (PBACNBTR1A)
Special
Function
Wi-Fi3o3o3
Aux. Heat Relay Kit o (PRARH1) o (PRARH1)
1Primary washable filter. 14”x14”x1” for 2x2 units; 20.5”x20.5”x1” for 3x3 units.
2Requires wired zone controller.
3Requires Wi-Fi module PWFMDD200.
¥ 6WDQGDUGIHDWXUH
o = Unit option
X = Not Available
FUNCTIONS, CONTROLS, AND OPTIONS

PRODUCT DATA | 15
Product Data
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
OUTDOOR UNIT DIMENSIONS
LUU097HV, LUU127HV
4-3/32 22-3/16
13/16
12-31/32
13-29/32
13/16
4 Holes for Anchor Bolts (M 13/32)
3D View
1-3/16 11-11/32 31/32
2-9/16
17-11/16
15/16
21-15/32
30-5/16 2-23/32
5/8
2-3/32 5-21/32 6
2
3 45
7
1
17-11/1615/16
4-25/32
Side View
(Valve Cover Removed)
8-25/32
2-3/4
4-7/16 1-11/32
1-7/32 1-29/32
2
2-3/32
1-13/32
1-1/16
6-5/8
10
7-1/2
15-11/16
19-11/16
4 - LD. Ɏ25/32 Holes for drain connection
9-29/32
Intake air temperature sensor cover
Handle
Conduit
Liquid pipe connection
Vapor pipe connection
Control cover & service valve cover
Air outlet
No. Part Name
1
2
3
4
5
6
7[Unit: inch]
Figure 5: LUU097HV, LUU127HV Outdoor Unit Dimensions.

16 | PRODUCT DATA
Four-Way Ceiling-Cassette System Engineering Manual
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
OUTDOOR UNIT DIMENSIONS
LUU189HV, LUU249HV
Figure 6: LUU189HV, LUU249HV Outdoor Unit Dimensions.

PRODUCT DATA | 17
Product Data
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
OUTDOOR UNIT DIMENSIONS
LUU369HV, LUU429HV
Figure 7: LUU369HV, LUU429HV Outdoor Unit Dimensions.

18 | PRODUCT DATA
Four-Way Ceiling-Cassette System Engineering Manual
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
INDOOR UNIT DIMENSIONS
LCN098HV4, LCN128HV4
Figure 8: LCN098HV4, LCN128HV4 Indoor Unit Dimensions.
23-5/8 (600) (Ceiling Opening)
Unit: Inch (mm])
4-17/32
(115) 2-51/64
(71)
2-51/64
(71)
4-17/32
(115) 7/64
(3)
2-3/4
(70)
5-29/32
(150)
5-29/32
(150)
20-23/64 (517) (Hanging Bolt)
10-13/64 (259)
10-13/64 (259)
10-13/64 (259)
23-5/8 (600) (Ceiling Opening)
20-23/64 (517) (Hanging Bolt)
20-19/32 (523) (Hanging Bolt)
10-13/64 (259)
5-19/32
(142)
9-19/64 (236)
7-61/64
(202)
7-61/64
(202)
Max. Condensate Lift: 31-1/2
(800) or less
22-7/16 (570)
1-31/32
(50)
18-5/32 (461) (Hanging Bolt)
1-3/16
(30)
63/64
(25)
63/64
(25)
7-13/64
(183)
1-11/32
(34)
3-21/32
(93)
6-1/16
(154)
24-13/32 (620)
14-29/32 (379) (Air Outlet Hole)
24-13/32 (620)
22-7/16 (570)
14-29/32 (379)
(Air Outlet Hole)
111
32
24-13/32 (620)
24-13/32 (620)
PT-QCHW0

PRODUCT DATA | 19
Product Data
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
Figure 9: LCN188HV4 Indoor Unit Dimensions.
INDOOR UNIT DIMENSIONS
LCN188HV4
Unit: Inch (mm)
2-51/64
(71)
5-29/32
(150)
7/64
(3)
2-3/4
(70)
6-3/16
(157)
7-9/16
(192)
23-5/8 (600) (Ceiling Opening)
23-5/8 (600) (Ceiling Opening)
20-23/64 (517) (Hanging Bolt)
20-23/64 (517) (Hanging Bolt)
10-13/64 (259)
10-13/64 (259)
10-13/64 (259)
10-13/64 (259)
20-19/32 (523) (Hanging Bolt)
18-5/32 (461) (Hanging Bolt)
22-7/16 (570)
22-7/16 (570)
5-19/32
(142) 1-31/32
(50)
1-3/16
(30)
63/64
(25) 63/64
(25)
7-13/64
(183)
1-11/32
(34)
3-1/2
(89)
6-1/16
(154)
24-13/32 (620)
14-29/32 (379) (Air Outlet Hole)
24-13/32 (620)
14-29/32 (379)
(Air Outlet Hole)
Max. Condensate Lift: 31-1/2
(800) or less
7-61/64
(202)
7-61/64
(202)
11
(279)
111
32
24-13/32 (620)
24-13/32 (620)
PT-QCHW0

20 | PRODUCT DATA
Four-Way Ceiling-Cassette System Engineering Manual
'XHWRRXUSROLF\RIFRQWLQXRXVSURGXFWLQQRYDWLRQVRPHVSHFL¿FDWLRQVPD\FKDQJHZLWKRXWQRWL¿FDWLRQ
© /*(OHFWURQLFV86$,QF(QJOHZRRG&OLIIV1-$OOULJKWVUHVHUYHG³/*´LVDUHJLVWHUHGWUDGHPDUNRI/*&RUS
Figure 10: LCN248HV Indoor Unit Dimensions.
INDOOR UNIT DIMENSIONS
LCN248HV