TABLE OF CONTENTS Nomenclature..........................................4 LG Air Conditioner Technical Solution (LATS) ................................. 5-6 Four-Way Ceiling-Cassette Product Data................................7-43 ......................................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 ........................................
UNIT NOMENCLATURE Indoor Units and Outdoor Units L = LG 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 N: Indoor Unit U: Outdoor Unit...
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.
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LATS can generate an Excel GERP report that can imported into the LG SOPS pricing and ordering system.
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...
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1,000 hours. System Case has a removable panel Models). LG single zone four-way ceiling cassette system comprises of a to allow access to major single frame outdoor unit connected to a single indoor unit with a internal components, and single refrigerant circuit.
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MECHANICAL SPECIFICATIONS Frequency ranges for the 9,000 ~ 24,000 Btu/h outdoor The indoor fan has Low, Med, High, Figure 4: Four-Way Ceiling Power Cool and Auto settings for Cassette System (LC368HV, units are: LC428HV Models). Cooling mode; and has Low, Med, 9k Btu/h = 20 Hz to 100 Hz High, and Auto settings for Heating 12k Btu/h = 20 Hz to 100 Hz...
GENERAL DATA Pairing Table 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 Outdoor Unit Model Indoor Unit Model Controller LUU097HV LCN098HV4 PQWRHQ0FDB LUU127HV LCN128HV4 LUU189HV LCN188HV4 PQWRHQ0FDB...
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GENERAL DATA Table 2: Four-Way 2 x 2 Ceiling Cassette System General Data. Type Single Zone 2 x 2 Four-Way Ceiling Cassette LC098HV4 LC128HV4 LC188HV4 System (Model) (Indoor Unit / Outdoor Unit) (LCN098HV4 / LUU097HV) (LCN128HV4 / LUU127HV) (LCN188HV4 / LUU189HV) Ceiling Grille Model Number (Sold Separately) PT-UQC / PT-QCHW0 PT-UQC / PT-QCHW0...
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GENERAL DATA Table 3: Four-Way 3 x 3 Ceiling Cassette System General Data. Type Single Zone 3 x 3 Four-Way Ceiling Cassette LC248HV LC368HV LC428HV System (Model) (Indoor Unit / Outdoor Unit) (LCN248HV / LUU249HV) (LCN368HV / LUU369HV) (LCN428HV / LUU429HV)
ELECTRICAL DATA Table 4: Electrical Data. Condenser Fan Motor(s) Voltage Compressor Nominal Compressor Unit Model No. Hertz Voltage Range Motor RLA Condenser Condenser Fan Tons Quantity (Min. to Max.) (Cooling) Fan Quantity. Motor FLA 2 x 2 Four-Way Ceiling Cassettes LUU097HV 11.9 0.25...
FUNCTIONS, CONTROLS, AND OPTIONS Table 5: Functions, Controls and Options. System Type 2x2 Ceiling Cassette 3x3 Ceiling Cassette Air Supply Outlets 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)
ACOUSTIC DATA Indoor Units Figure 12: Indoor Unit Sound Pressure Level • Measurements taken with no attenuation and units operating at full load normal Measurement Location. operating condition. • Sound level will vary depending on a range of factors such as construction (acoustic absorption coefficient) of particular area in which the equipment is installed.
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ACOUSTIC DATA Outdoor Units Figure 15: Four-Way Ceiling Cassette Outdoor Unit • Measurements taken with no attenuation and units operating at full load normal Sound Pressure Level Measurement Location. operating condition. • Sound level will vary depending on a range of factors such as construction (acous- tic absorption coefficient) of particular area in which the equipment is installed.
1(L1) 2(L2) Terminal Block Indoor • LG Single Zone Four-Way Cassette systems operate at 1Ø, 208-230V, 60Hz. Indoor Unit • 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.
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ELECTRICAL CONNECTIONS Figure 31: Single Zone Outdoor Unit to Indoor Unit Wiring and Com- Figure 30: Typical Single Zone Outdoor Unit to Indoor Unit Wiring and munications Cable Diagram For Wiring Lengths GREATER THAN 130 Communications Cable Diagram For Wiring Lengths Up to 130 Feet. Feet.
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Optional controllers (see “Functions, Controls, Options”, or contact an LG representative for more information) can connect to the Four-Way Ceiling Cassette 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.
AIR VELOCITY AND TEMPERATURE DISTRIBUTION Figure 39: LCN098HV4 Air Velocity and Temperature Distribution Charts. Cooling Heating Discharge angle: 40° Discharge angle: 50° Air velocity [ft/s] Air velocity [ft/s] Temperature [°F] Temperature [°F] Figure 40: LCN128HV4 Air Velocity and Temperature Distribution Charts. Cooling Heating Discharge angle: 40°...
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AIR VELOCITY AND TEMPERATURE DISTRIBUTION Figure 41: LCN188HV4 Air Velocity and Temperature Distribution Charts. Figure 42: LCN248HV Air Velocity and Temperature Distribution Charts. Cooling Heating Discharge angle: 40° Discharge angle: 50° Air velocity [ft/s] Air velocity [ft/s] 13ft 10ft 10ft 13ft 13ft 10ft...
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AIR VELOCITY AND TEMPERATURE DISTRIBUTION Figure 43: LCN368HV Air Velocity and Temperature Distribution Charts. Cooling Heating Discharge angle: 40° Discharge angle: 50° Air velocity [ft/s] Air velocity [ft/s] 10.5ft 10.5ft 13.1 13.1 13.1 13.1 16ft 13ft 10ft 10ft 13ft 16ft 16ft 13ft 10ft...
When connected through the indoor unit, user will not be able to record data. This software can be used to both commission new systems and troubleshoot existing systems. LGMV data can be recorded to a “.CSV” file and emailed to an LG representative to assist with diagnostic evaluations. Recommended Minimum PC Configuration: •...
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SIMs consists of a hardware Wireless Local Area Network (WLAN) module, an interface cable, and a free downloadable application (app) for iOS® or Android™. The user must supply either an Apple® or an Android smart phone; SIMs is not optimized for tablets, and only be used with LG single zone and Multi F systems.
PERFORMANCE DATA Cooling Capacity Data on page 45 Heating Capacity Data on page 51 Maximum Heating Capacity Data on page 54 Equipment Selection Procedure on page 57...
PERFORMANCE DATA Maximum Heating Capacity LC098HV4, LC128HV4 Maximum Heating Capacity Table for LC098HV4 (LUU097HV + LCN098HV4) Table 30: LCN098HV4 / LUU097HV Maximum Heating Capacities. Outdoor Air Temp. Indoor Air Temp. °F DB °F DB °F WB -13.4 8.71 1.11 8.51 1.15 8.27 1.18...
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3. Grey shading indicates reference data. When operating at this temperature, these values can be different if the system is not running consistently. Maximum Heating Capacity Table for LC248HV (LUU249HV + LCN248HV) Table 32: LCN248HV / LUU249HV Maximum Heating Capacities.
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PERFORMANCE DATA Maximum Heating Capacity LC428HV Maximum Heating Capacity Table for LC368HV (LUU369HV + LCN368HV) Table 34: LCN368HV / LUU369HV Maximum Heating Capacities. Outdoor Air Temp. Indoor Air Temp. °F DB °F DB °F WB -13.4 30.46 4.36 29.78 4.51 28.93 4.65 28.45...
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• 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. 58 | PERFORMANCE DATA...
APPLICATION GUIDELINES Placement Considerations on page 60 Installing Outdoor Units Indoors on page 68 Refrigerant Piping Design on page 71...
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PLACEMENT CONSIDERATIONS Indoor Unit Selecting the Best Location for the Indoor Unit WARNING explosion, and physical injury or death. Figure 47: Indoor Unit Clearance Requirements. Do’s Select a location for installing the indoor units that will meet the following conditions: •...
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PLACEMENT CONSIDERATIONS Indoor Unit • Indoor units (IDUs) should 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 should be provided.
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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, resulting in bodily injury or death. •...
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PLACEMENT CONSIDERATIONS Outdoor Unit Oceanside Applications Figure 52: Oceanside Placement Using Windbreak. Use of a Windbreak to Shield from Sea Wind Windbreak Ocean winds will cause corrosion, particularly on the condenser and • Avoid installing the outdoor unit where it would be directly Sea wind exposed to ocean winds.
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PLACEMENT CONSIDERATIONS Outdoor Unit Minimum Allowable Clearance and Service Access Requirements 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 on the following pages. •...
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PLACEMENT CONSIDERATIONS Outdoor Unit Outdoor Unit (36,000 and 42,000 Btu/h Capacity) Service Access and Allowable Clearances When installing the outdoor unit, consider service, inlet, and outlet, and minimum allowable space requirements as illustrated in the following diagrams. Minimum 11-13/16 Strong Strong wind wind...
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PLACEMENT CONSIDERATIONS Outdoor Unit Obstacles above and on the Where there are obstacles on both suction Obstacle just on the and discharge sides (discharge side obstacle air discharge side. air discharge side. is higher than the outdoor unit). Where there are obstacles above, and on both Where there are obstacles on both suction suction and discharge sides (discharge side obstacle and discharge sides (discharge side obstacle...
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PLACEMENT CONSIDERATIONS Installing Outdoor Units Indoors Installing Outdoor Units Indoors Single Zone Cassette outdoor units are engineered to be mounted outdoors and include technology designed to minimize the negative effects of winter weather’s freezing rain, sleet, and snow. Some building projects, however, necessitate placing the HVAC outdoor units indoors: •...
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PLACEMENT CONSIDERATIONS Installing Outdoor Units Indoors 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. •...
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PLACEMENT CONSIDERATIONS Installing Outdoor Units Indoors Open Rate by Louver Radian Figure 57: Open Rate by Louver Radian Formula. 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...
Additional Refrigerant Needed (oz/ft) 0.22 0.43 0.43 Figure 59: Typical LC098HV4 and LC128HV4 System Layout. Figure 60: Typical LC188HV4 and LC248HV System Layout. Unit = Feet Unit = Feet Max Length = A Max Length = A Max Elevation = B...
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20001747 ISO 9001: 2008 LG ELECTRONICS INC. EM_SZ_Cassette_02_23 Supersedes: EM_SZ_Cassette_12_22 EM_SZ_Cassette_06_21 EM_SZ_Cassette_05_21 EM_SZ_Cassette_04_21 EM_SZ_Cassette_10_20 EM_SZ_Cassette_09_20 EM_SZ_Cassette_09_19 EM_SZ_Cassette_2_19 LG Electronics, U.S.A., Inc. EM_SZ_Cassette_12_18 Air Conditioning Technologies EM_SZ_Cassette_11_18 4300 North Point Parkway EM_SZ_Cassette_8_17 Alpharetta, Georgia 30022 EM_SZ_Cassette_7_16 www.lghvac.com DFS-EM-AC-001-US_014D02...