LG LS243HLV3 Engineering Manual

LG LS243HLV3 Engineering Manual

Single zone extended piping wall mounted
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SINGLE ZONE EXTENDED PIPING
WALL MOUNTED
ENGINEERING MANUAL
2 Tons
2-1/2 and 2-3/4 Tons
LS243HLV3
LS303HLV3, LS363HLV3

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Summary of Contents for LG LS243HLV3

  • Page 1 SINGLE ZONE EXTENDED PIPING WALL MOUNTED ENGINEERING MANUAL 2 Tons 2-1/2 and 2-3/4 Tons LS243HLV3 LS303HLV3, LS363HLV3...
  • Page 2 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. For continual product development, LG Electronics U.S.A., Inc., reserves the right to change specifications without notice. © LG Electronics U.S.A., Inc.
  • Page 3: Table Of Contents

    TABLE OF CONTENTS 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...
  • Page 4: Unit Nomenclature

    UNIT NOMENCLATURE Single Zone Wall Mount Indoor and Outdoor Units Family LS = Wall Mounted Type N = Indoor Wall Mount Unit U = Outdoor Heat Pump Unit Capacity (Mbh) 243 = 22 303 = 30 363 = 33 Indoor/Outdoor Product HLV - Extended Piping Generation or Revision 1 = First...
  • Page 5: Lg Air Conditioner Technical Solution (Lats)

    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.
  • Page 6 LATS can generate an Excel GERP report that can imported into the LG SOPS pricing and ordering system.
  • Page 7: Product Data

    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...
  • Page 8: Mechanical Specifications

    HLV3 indoor units have built-in Wi-Fi and Outdoor unit is constructed with pre-coated The outdoor unit includes one direct fan can be controlled by LG’s Smart ThinQ™ metal (PCM). drive, variable speed variable speed app on a smartphone. A field-supplied Wi-Fi Indoor unit is constructed of heavy duty propeller type fan.
  • Page 9: General Data

    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...
  • Page 10 GENERAL DATA Table 2: LS243HLV3 LS303HLV3 LS363HLV3 System (Model) (Indoor Unit / Outdoor Unit) (LSN243HLV3/LSU243HLV3) (LSN303HLV3/LSU303HLV3) (LSN363HLV3/LSU363HLV3) Cooling Capacity (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 (Rated) (kW) 1.69...
  • Page 11: Electrical Data

    Outdoor Fan Indoor Fan Nominal Unit Model Voltage Range Compressor Motor Motor Hertz Voltage Tons Number (Min. to Max.) Qty. Cooling Heating LS243HLV3 19.0 14.41 14.41 2-1/2 LS303HLV3 208 - 230 187 - 253 23.0 15.1 15.1 0.25 2-3/4 LS363HLV3 23.0 15.1...
  • Page 12: Functions, Controls, Options

    PI-485 o (PMNFP14A1) MultiSITE Communications Manager o (PBACNBTR0A) MultiSITE VM3 o (PBACNBTR1B) Wi-Fi Module (Built In) Water Level Sensor Connection (for Optional AG-9300-LG) Wind Baffle Kit o (ZLABGP04A) Mode Lock Cooling Only or Heating Only Temperature Control Thermistor Smart Inverter Monitoring System (SIMs) o (PSWMOZ3) Primary washable filters.
  • Page 13: Outdoor Unit Dimensions

    OUTDOOR UNIT DIMENSIONS LSU243HLV3, LSU303HLV3, LSU363HLV3 PRODUCT DATA | 13 ©...
  • Page 14: Outdoor Unit Center Of Gravity / Corner Weight

    OUTDOOR UNIT CENTER OF GRAVITY / CORNER WEIGHT Figure 4: Center of Gravity and Corner Weight Dimensions Diagram. Table 5: Center of Gravity and Corner Weight Dimensions. Weight (lb.) Center of Gravity (inch) Leg (inch) Corner Weight (lb.) Model Shipping LSU243HLV3 147.7 135.4...
  • Page 15: Indoor Unit Dimensions

    INDOOR UNIT DIMENSIONS LSN243HLV3 PRODUCT DATA | 15 ©...
  • Page 16 INDOOR UNIT DIMENSIONS LSN303HLV3, LSN363HLV3 16 | PRODUCT DATA ©...
  • Page 17: Acoustic Data

    INDOOR UNIT ACOUSTIC DATA Extended Piping Wall Mounted Systems Indoor Unit Sound Pressure Measurement / Sound Pressure Levels Figure 5: Extended Piping Wall Mounted • Measurements are taken 3.3 feet (1 m) away from the front of the unit. Indoor Unit Sound Level Measurement •...
  • Page 18 INDOOR UNIT ACOUSTIC DATA Extended Piping Wall Mounted Systems LSN303HLV3 and LSN363HLV3 Sound Pressure Levels Figure 7: Sound Pressure Levels for LSN303HLV3 Indoor Units. LSN303HLV3 High High Middle Middle NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 NC-45 NC-45 NC-40 NC-40 NC-35 NC-35...
  • Page 19 OUTDOOR UNIT ACOUSTIC DATA Extended Piping Wall Mounted Systems Outdoor Unit Sound Pressure Measurement / Sound Pressure Levels Figure 9: Extended Piping Wall Mounted Outdoor Unit Sound Level • Measurements are taken 3.3 feet (1 m) away from the front of the unit.
  • Page 20 OUTDOOR UNIT ACOUSTIC DATA Extended Piping Wall Mounted Systems LSU303HLV3 and LSU363HLV3 Sound Pressure Levels Figure 11: Sound Pressure Levels for LSU303HLV3 Outdoor Units. LSU303HLV3 Cooling Heating Front Front Back Back NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 NC-45 NC-45 NC-40 NC-40...
  • Page 21: Refrigerant Flow Diagram

    Discharge Pipe Temperature Thermistor CH-TH2 (Outdoor) Table 9: 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) Figure 13: LSN / LSU243-303-363HLV3 Refrigerant Piping Sizes. Reversing Valve Compressor...
  • Page 22: Indoor Unit Wiring Diagram

    INDOOR UNIT WIRING DIAGRAM LSN243HLV3, LSN303HLV3, LSN363HLV3 Wiring Diagram for Extended Piping Wall Mounted Indoor Units 01-2020 22 | PRODUCT DATA ©...
  • Page 23: Outdoor Unit Wiring Diagram

    OUTDOOR UNIT WIRING DIAGRAM LSU243HLV3, LSU303HLV3, LSU363HLV3 Wiring Diagram for Extended Piping Wall Mounted Outdoor Units 01-2020 PRODUCT DATA | 23 ©...
  • Page 24: Electrical Connections

    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.
  • Page 25 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. • 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.
  • Page 26 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.
  • Page 27 ELECTRICAL CONNECTIONS Wired Controller Placement Figure 24: Proper Location for the Wired Controller. 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.
  • Page 28: Air Flow, Static Pressure, And Temperature Distribution

    AIR FLOW, STATIC PRESSURE, AND TEMPERATURE DISTRIBUTION Table 10: Extended Piping Wall Mounted Outdoor Unit Air Flow Rate and Static Pressure. Model Air Flow Rate (CFM) Static Pressure (in. WG) LSU243HLV3 2,119 0.0409 LSU303HLV3, LSU363HLV3 2,295 0.0480 LSN243HLV3 Cooling Air Velocity [m/s (ft./s)] Temperature [°C (°F)] 2(6.6) 1(3.3)
  • Page 29 AIR FLOW, STATIC PRESSURE, AND TEMPERATURE DISTRIBUTION LSN243HLV3, continued. Heating Air Velocity [m/s (ft./s)] Temperature [°C (°F)] 24(75) 30(86) 32(90) 2(6.6) 1(3.3) 26(79) 0.5(1.6) 0.3(1) 22(72) 8 . 2 26.2 19.7 13.1 6 . 6 8 . 2 26.2 19.7 1 .
  • Page 30 AIR FLOW, STATIC PRESSURE, AND TEMPERATURE DISTRIBUTION LSN303HLV3 Cooling Air Velocity [m/s (ft./s)] Temperature [°C (°F)] 0.5(1.6) 1(3.3) 26(79) 0.3(1) 28(82) 2(6.6) 22(72) 18(64) 8 . 2 26.2 19.7 13.1 6 . 6 8 . 2 26.2 19.7 1 . 3 Side View Discharge Vertical Louver : Center...
  • Page 31 AIR FLOW, STATIC PRESSURE, AND TEMPERATURE DISTRIBUTION LSN303HLV3, continued. Heating Air Velocity [m/s (ft./s)] Temperature [°C (°F)] 30(86) 2(6.6) 28(82) 0.5(1.6) 26(79) 0.3(1) 1(3.3) 24(75) 8 . 2 26.2 19.7 13.1 6 . 6 8 . 2 26.2 19.7 1 . 3 Side View Discharge Vertical Louver : Center...
  • Page 32 AIR FLOW, STATIC PRESSURE, AND TEMPERATURE DISTRIBUTION LSN363HLV3 Cooling Air Velocity [m/s (ft./s)] Temperature [°C (°F)] 0.5(1.6) 1(3.3) 0.3(1) 26(79) 2(6.6) 28(82) 22(72) 18(64) 8 . 2 26.2 19.7 13.1 6 . 6 8 . 2 26.2 19.7 1 . 3 Side View Discharge Vertical Louver : Center...
  • Page 33 AIR FLOW, STATIC PRESSURE, AND TEMPERATURE DISTRIBUTION LSN363HLV3, continued. Heating Air Velocity [m/s (ft./s)] Temperature [°C (°F)] 30(86) 2(6.6) 28(82) 0.5(1.6) 26(79) 0.3(1) 1(3.3) 24(75) 8 . 2 26.2 19.7 13.1 6 . 6 8 . 2 26.2 19.7 1 . 3 Side View Discharge Vertical Louver : Center...
  • Page 34: Performance Data

    PERFORMANCE DATA 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...
  • Page 35: Cooling Capacity

    PERFORMANCE DATA Cooling Capacity LS243HLV3, LS303HLV3 Cooling Capacity Table for LS243HLV3 (LSU243HLV3 + LSN243HLV3) Table 11: LSN243HLV3 / LSU243HLV3 Cooling Capacities. Indoor Air Temperature (°F DB / °F WB) Outdoor Air 64 / 53 68 / 57 72 / 61...
  • Page 36 PERFORMANCE DATA Cooling Capacity LS363HLV3 Cooling Capacity Table for LS363HLV3 (LSU363HLV3 + LSN363HLV3) Table 13: LSN363HLV3 / LSU363HLV3 Cooling Capacities. Indoor Air Temperature (°F DB / °F WB) Outdoor Air 64 / 53 68 / 57 72 / 61 77 / 64 80 / 67 86 / 72 90 / 75...
  • Page 37: Maximum Cooling Capacity

    PERFORMANCE DATA Maximum Cooling Capacity LS243HLV3, LS303HLV3 Max. Cooling Capacity Table for LS243HLV3 (LSU243HLV3 + LSN243HLV3) Table 14: LSN243HLV3 / LSU243HLV3 Maximum Cooling Capacities. Indoor Air Temperature (°F DB / °F WB) Outdoor Air 64 / 53 68 / 57...
  • Page 38 PERFORMANCE DATA Maximum Cooling Capacity LS363HLV3 Max. Cooling Capacity Table for LS363HLV3 (LSU363HLV3 + LSN363HLV3) Table 16: LSN363HLV3 / LSU363HLV3 Maximum Cooling Capacities. Indoor Air Temperature (°F DB / °F WB) Outdoor Air 64 / 53 68 / 57 72 / 61 77 / 64 80 / 67 86 / 72...
  • Page 39: Heating Capacity

    PERFORMANCE DATA Heating Capacity LS243HLV3, LS303HLV3 Heating Capacity Table for LS243HLV3 (LSU243HLV3 + LSN243HLV3) Table 17: LSN243HLV3 / LSU243HLV3 Heating Capacities. Outdoor Air Indoor Air Temperature (°F DB) Temp. °F DB °F WB 13.26 1.39 12.86 1.37 12.73 1.37 12.60 1.36...
  • Page 40 PERFORMANCE DATA Heating Capacity LS363HLV3 Heating Capacity Table for LS363HLV3 (LSU363HLV3 + LSN363HLV3) Table 19: LSN363HLV3 / LSU363HLV3 Heating Capacities. Outdoor Air Indoor Air Temperature (°F DB) Temp. °F DB °F WB 17.96 2.08 17.41 2.06 17.23 2.06 17.06 2.04 16.93 2.04 16.59...
  • Page 41: Maximum Heating Capacity

    PERFORMANCE DATA Maximum Heating Capacity LS243HLV3, LS303HLV3 Maximum Heating Capacity Table for LS243HLV3 (LSU243HLV3 + LSN243HLV3) Table 20: LSN243HLV3 / LSU243HLV3 Maximum Heating Capacities. Outdoor Air Indoor Air Temperature (°F DB) Temp. °F DB °F WB 21.44 2.87 21.32 2.87 21.22...
  • Page 42 PERFORMANCE DATA Maximum Heating Capacity LS363HLV3 Maximum Heating Capacity Table for LS363HLV3 (LSU363HLV3 + LSN363HLV3) Table 22: LSN363HLV3 / LSU363HLV3 Maximum Heating Capacities. Outdoor Air Indoor Air Temperature (°F DB) Temp. °F DB °F WB 27.18 4.47 27.03 4.48 26.90 4.49 26.82 4.49...
  • Page 43: Equipment Selection Procedure

    Mode 16.4 24.6 32.8 49.2 65.6 98.4 114.8 131.2 147.6 Cooling 99.6 98.7 97.8 96.9 96.0 95.1 94.3 93.4 92.5 LS243HLV3 Heating 99.8 99.3 98.9 98.4 98.0 97.5 97.1 96.6 96.2 Cooling 99.6 98.7 97.8 96.9 96.0 95.1 94.3 93.4 92.5...
  • Page 44 • 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. 44 | PERFORMANCE DATA...
  • Page 45: Application Guidelines

    APPLICATION GUIDELINES Placement Considerations on page 46 Installing Outdoor Units Indoors on page 51 Refrigerant Piping Design on page 54...
  • Page 46 PLACEMENT CONSIDERATIONS Indoor Unit Selecting the Best Location for the Indoor Unit Figure 25: Extended Piping Indoor Unit Clearance Requirements. Follow required best practices when choosing an indoor location for the single zone indoor unit. More than 8 inches Do’s More than More than (200 mm)
  • Page 47 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. •...
  • Page 48 (inches) (inches) 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 LS243HLV3, LS303HLV3, LS363HLV3 3/8 Flare 5/8 Flare engineer.
  • Page 49 PLACEMENT CONSIDERATIONS Outdoor Unit Oceanside Applications Figure 29: 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.
  • Page 50 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.
  • Page 51 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: •...
  • Page 52 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. •...
  • Page 53 PLACEMENT CONSIDERATIONS Installing Outdoor Units Indoors Open Rate by Louver Radian Figure 34: 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...
  • Page 54: Refrigerant Piping Design

    Outdoor unit Max Elevation = B maximum length and elevation of piping. Outdoor unit Indoor unit Table 30: Single Zone Extended Piping Wall Mounted Refrigerant Piping System Limitations. Model Numbers LS243HLV3 LS303HLV3 LS363HLV3 Vapor 5/8 inches 5/8 inches 5/8 inches...
  • Page 56 20001747 ISO 9001: 2008 LG ELECTRONICS INC. EM_SZ_WallMounted_ExtendedPiping_HLV3_03_2020 Supersedes: EM_SZ_WallMounted_ExtendedPiping_HLV_11_18 LG Electronics, U.S.A., Inc. EM_SZ_WallMounted_ExtendedPiping_HLV_12_16 Air Conditioning Technologies EM-SZ-HighEfficiencyWallmount-HSV3-HV3-HLV-9-16 4300 North Point Parkway EM-SZ-HighEfficiencyWallmount-HSV3-HV3-HLV-6-16 Alpharetta, Georgia 30022 DFS-EM-AH-001-US 014D10 www.lghvac.com...

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