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LG multi V ARNU073TUD4 Engineering Manual
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LG multi V ARNU073TUD4 Engineering Manual

Ceiling cassette indoor unit
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CEILING CASSETTE INDOOR UNIT
ENGINEERING MANUAL
One-Way Ceiling Cassettes
Two-Way Ceiling Cassettes
7,500 to 24,200 Btu/h
19,100 to 24,200 Btu/h
Four-Way Ceiling Cassettes
5,500 to 48,100 Btu/h

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Summary of Contents for LG multi V ARNU073TUD4

  • Page 1 CEILING CASSETTE INDOOR UNIT ENGINEERING MANUAL One-Way Ceiling Cassettes Two-Way Ceiling Cassettes 7,500 to 24,200 Btu/h 19,100 to 24,200 Btu/h Four-Way Ceiling Cassettes 5,500 to 48,100 Btu/h...
  • Page 2 LATS software programs, and more, log in to 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 Four-Way Ceiling Cassette ............52-95 ............53-54 LG Air Conditioner Technical Solution (LATS) ........ 5-6 ................55-57 ................... 58 Refrigerant Charge Worksheet............7-9 ..............59-61 ............62-65 One-Way Ceiling Cassette ............. 10-35 ..............66 ............

  • Page 4: Unit Nomenclature

    UNIT NOMENCLATURE Family ARN = Multi V Indoor Unit (Refrigerant R410A) Type U = DC Inverter Heat Pump Indoor Unit Nominal Capacity 05 = 5,000 Btu/h 18 = 18,000 Btu/h 42 = 42,000 Btu/h 07 = 7,000 Btu/h 24 = 24,000 Btu/h 48 = 48,000 Btu/h 09 = 9,000 Btu/h 28 = 28,000 Btu/h...

  • Page 5: Lg Air Conditioner Technical Solution (Lats)

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

  • Page 7: Refrigerant Charge Worksheet

    REFRIGERANT CHARGE WORKSHEET Multi V 5 System R410A Refrigerant Charge Calculator (lbs.) Job Name: __________________________________________ System Tag or ID: Project Manager: ____________________________________ Date: ______________ Line # Description Chassis I.D. Size Quantity CF (Ref.) Total (lbs.) Linear feet of 1/4" liquid line tubing —...
  • Page 8 REFRIGERANT CHARGE WORKSHEET Water 5 System R410A Refrigerant Charge Calculator (lbs.) Job Name: __________________________________________ System Tag or ID: Project Manager: ____________________________________ Date: ______________ Line # Description Chassis I.D. Size Quantity CF (Ref.) Total (lbs.) Linear feet of 1/4" liquid line tubing —...
  • Page 9 REFRIGERANT CHARGE WORKSHEET Multi V S System R410A Refrigerant Charge Calculator (lbs.) Job Name: __________________________________________ System Tag or ID: Project Manager: ____________________________________ Date: ______________ Line # Description Chassis I.D. Size Quantity CF (Ref.) Total (lbs.) Linear feet of 1/4" liquid line tubing —...

  • Page 10: One-Way Ceiling Cassette

    ONE-WAY CEILING CASSETTE Mechanical Specifications on page 11 General Data on page 13 Electrical Data on page 15 External Dimensions on page 16 Electrical Wiring Diagrams on page 18 Refrigerant Flow Diagrams on page 20 Acoustic Data on page 21 Air Velocity / Temperature Distribution on page 25 Outside Air Ventilation on page 33 Capacity Tables on page 34...
  • Page 11 80°F. The unit is equipped with an oscillating motorized guide vane designed to change the angle an infrared receiver designed to communicate with an LG wireless airflow is discharged. The discharge range of motion is 40º in an remote controller.
  • Page 12 • Multiple auxiliary heater applications a reason for the code displayed. • Group control Indoor units are Wi-Fi compatible with the addition of an LG Wi-Fi • High ceiling module accessory, and can be controlled by LG’s ThinQ™ app on •...
  • Page 13 ONE-WAY CEILING CASSETTE General Data Table 1: One-Way Ceiling Cassette (TU Frames) Indoor Unit General Data. Model No. ARNU073TUD4 ARNU093TUD4 ARNU123TUD4 Capacity (Btu/h) 7,500 9,600 12,300 Max Power Input L/M/H Power Input at Factory Default (W) 16 / 18 / 20 18 / 20 / 22 20 / 22 / 24 Capacity (Btu/h)
  • Page 14 ONE-WAY CEILING CASSETTE General Data Table 2: One-Way Ceiling Cassette (TT Frames) Indoor Unit General Data. Model No. ARNU183TTD4 ARNU243TTD4 Capacity (Btu/h) 19,100 24,200 Max Power Input L/M/H Power Input at Factory Default (W) 24 / 28 /38 26 / 33 / 51 Capacity (Btu/h) 21,500 24,200...
  • Page 15 ONE-WAY CEILING CASSETTE Electrical Data Table 3: One-Way Ceiling Cassette Indoor Unit Electrical Data. Power Supply Power Input (W) Voltage Rated Model Number Range Amps (A) Volts Phase L/M/H at Factory Default Cooling Heating ARNU073TUD4 0.23 0.18 16 / 18 / 20 ARNU093TUD4 187-253 0.23...
  • Page 16 ONE-WAY CEILING CASSETTE External Dimensions TU Frame with PT-UAHW0 Panel Figure 3: ARNU073TUD4, ARNU093TUD4, ARNU123TUD4 Dimensions (PT-UAHW0 Panel). Maximum Condensate Lift: 27-9/16 16 | ONE-WAY ©...
  • Page 17 ONE-WAY CEILING CASSETTE External Dimensions TT Frame with PT-TAHW0 Panel Figure 4: ARNU183TTD4, ARNU243TTD4 Dimensions (PT-TAHW0 Panel). Maximum Condensate Lift: 27-9/16 © ONE-WAY | 17...
  • Page 18 TU and TT Frames Figure 5: TU, TT Frame Wiring Diagram. *If a Third-Party Dry Contact and an LG internal heater or an LG Auxiliary Heater Kit is installed, supplemental heat capability cannot be controlled by the Third-Party Thermostat. 18 | ONE-WAY...
  • Page 19 AC power line input for indoor controller *If a Third-Party Dry Contact and an LG internal heater or an LG Auxiliary Heater Kit is installed, supplemental heat capability cannot be controlled by the Third-Party Thermostat. Table 5: TU, TT Frame DIP Switch Settings.
  • Page 20 ONE-WAY CEILING CASSETTE Refrigerant Flow Diagram TU and TT Frames Figure 6: TU, TT Frame Piping Diagram. Cooling Heat Exchanger Heating Filter C.F.F. Filter lndoor unit Table 6: TU, TT Frame Refrigerant Pipe Connection Port Diameters. Model Liquid (inch) Gas (inch) ARNU073TUD4 ARNU093TUD4 ARNU123TUD4...
  • Page 21 ONE-WAY CEILING CASSETTE Acoustic Data Sound Pressure Levels Figure 7: Sound Pressure Measurement Location. • Measurements are taken 4.9 ft away from the front of the unit. • Sound pressure levels are measured in dB(A) with a tolerance of ±3. •...
  • Page 22 ONE-WAY CEILING CASSETTE Acoustic Data Sound Pressure Levels Figure 9: ARNU183TTD4 and ARNU243TTD4 Sound Pressure Level Diagrams. ARNU183TTD4 ARNU243TTD4 22 | ONE-WAY ©...
  • Page 23 ONE-WAY CEILING CASSETTE Acoustic Data Sound Power Levels Table 9: One-Way Ceiling Cassette Indoor Unit Sound Power Levels. • Data is valid under diffuse field conditions. • Data is valid under nominal operating conditions. Sound Power Levels dB(A) Model • Sound power level is measured using rated conditions and tested High Fan Speed in a reverberation chamber under ISO Standard 3741.
  • Page 24 ONE-WAY CEILING CASSETTE Acoustic Data Sound Power Levels Figure 11: ARNU183TTD4 and ARNU243TTD4 Sound Power Level Diagrams. ARNU183TTD4 ARNU243TTD4 24 | ONE-WAY ©...
  • Page 25 ONE-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU073TUD4 Figure 12: ARNU073TUD4. Cooling Heating Discharge angle: 20° Discharge angle: 20° Air velocity [m/s(ft/s)] Air velocity [m/s(ft/s)] 2.7m 2.7m 2.0(6.6) 2.0(6.6) (8.9ft) (8.9ft) (6.6ft) (6.6ft) (3.3ft) (3.3ft) 5m(16.4ft) 4m(13.1ft) 3m(9.8ft) 2m(6.6ft) 1m(3.3ft) 5m(16.4ft) 4m(13.1ft)
  • Page 26 ONE-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU073TUD4, ARNU093TUD4 Figure 13: ARNU073TUD4, continued. Cooling Heating Discharge angle: 70° Discharge angle: 70° Air velocity [m/s(ft/s)] Air velocity [m/s(ft/s)] 2.7m 2.7m (8.9ft) (8.9ft) (6.6ft) (6.6ft) (3.3ft) (3.3ft) 5m(16.4ft) 4m(13.1ft) 3m(9.8ft) 2m(6.6ft) 1m(3.3ft) 5m(16.4ft) 4m(13.1ft)
  • Page 27 ONE-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU093TUD4 Figure 15: ARNU093TUD4, continued. Cooling Heating Discharge angle: 50° Discharge angle: 60° Air velocity [m/s(ft/s)] Air velocity [m/s(ft/s)] 2.7m 2.7m 0.1(0.3) 0.1(0.3) (8.9ft) (8.9ft) (6.6ft) (6.6ft) (3.3ft) (3.3ft) 1.5(4.9) 0.5(1.6) 1.0(3.3) 0.1(0.3) 1.0(3.3) 0.5(1.6)
  • Page 28 ONE-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU123TUD4 Figure 16: ARNU123TUD4. Cooling Heating Discharge angle: 20° Discharge angle: 20° Air velocity [m/s(ft/s)] Air velocity [m/s(ft/s)] 2.7m 2.7m 2.5(8.2) 2.0(6.6) 2.5(8.2) 2.0(6.6) 1.5(4.9) (8.9ft) (8.9ft) 1.0(3.3) (6.6ft) (6.6ft) (3.3ft) (3.3ft) 5m(16.4ft) 4m(13.1ft) 3m(9.8ft)
  • Page 29 ONE-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU123TUD4, ARNU183TTD4 Figure 17: ARNU123TUD4, continued. Cooling Heating Discharge angle: 70° Discharge angle: 70° Air velocity [m/s(ft/s)] Air velocity [m/s(ft/s)] 2.7m 2.7m (8.9ft) (8.9ft) (6.6ft) (6.6ft) (3.3ft) (3.3ft) 5m(16.4ft) 4m(13.1ft) 3m(9.8ft) 2m(6.6ft) 1m(3.3ft) 5m(16.4ft) 4m(13.1ft)
  • Page 30 ONE-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU183TTD4 Figure 19: ARNU183TTD4, continued. Cooling Heating Discharge angle: 50° Discharge angle: 60° Air velocity [m/s(ft/s)] Air velocity [m/s(ft/s)] 2.7m 2.7m (8.9ft) (8.9ft) (6.6ft) (6.6ft) (3.3ft) (3.3ft) 1.0(3.3) 5m(16.4ft) 4m(13.1ft) 3m(9.8ft) 2m(6.6ft) 1m(3.3ft) 5m(16.4ft) 4m(13.1ft)
  • Page 31 ONE-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU243TTD4 Figure 20: ARNU243TTD4. Cooling Heating Discharge angle: 20° Discharge angle: 20° Air velocity [m/s(ft/s)] Air velocity [m/s(ft/s)] 2.7m 2.7m 2.5(8.2) 2.0(6.6) 2.0(6.6) (8.9ft) (8.9ft) 1.5(4.9) 1.5(4.9) 0.1(0.3) 0.1(0.3) 1.0(3.3) 0.5(1.6) (6.6ft) (6.6ft) (3.3ft) (3.3ft)
  • Page 32 ONE-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU243TTD4 Figure 21: ARNU243TTD4, continued. Cooling Heating Discharge angle: 70° Discharge angle: 70° Air velocity [m/s(ft/s)] Air velocity [m/s(ft/s)] 2.7m 2.7m (8.9ft) (8.9ft) (6.6ft) (6.6ft) (3.3ft) (3.3ft) 5m(16.4ft) 4m(13.1ft) 3m(9.8ft) 2m(6.6ft) 1m(3.3ft) 5m(16.4ft) 4m(13.1ft) 3m(9.8ft)
  • Page 33 ONE-WAY CEILING CASSETTE Outside Air Ventilation TU, TT Frame Figure 22: TU Frame Outside Air Ventilation. Outside Air Ventilation (Open Knock-out on Cabinet Side) Figure 23: TT Frame Outside Air Ventilation. Outside Air Ventilation (Open Knock-out on Cabinet Side) © ONE-WAY | 33...
  • Page 34 ONE-WAY CEILING CASSETTE Cooling and Heating Capacity Tables Table 10: One-Way Cassette Cooling Capacity Table. Indoor Air Temperature (°F DB / WB) Outdoor Air Model No. / Capacity Index 68 / 57 73 / 61 79 / 64 80 / 67 85 / 70 88 / 73 91 / 76...
  • Page 35 1For use with all one-way ceiling-cassette indoor units. If a Third-Party Dry Contact and an LG internal heater or an LG Auxiliary Heater Kit is installed, supplemental heat capability cannot be controlled by the Third-Party Thermostat. All accessories are sold separately.

  • Page 36: Two-Way Ceiling Cassette

    TWO-WAY CEILING CASSETTE Mechanical Specifications on page 37 General Data on page 39 Electrical Data on page 39 External Dimensions on page 40 Electrical Wiring Diagram on page 41 Refrigerant Flow Diagram on page 43 Acoustic Data on page 44 Air Velocity / Temperature Distribution on page 46 Capacity Tables on page 50 Optional Accessories on page 51...
  • Page 37 80°F. The unit is equipped with an infrared receiver designed to communicate with an LG wireless remote controller. In lieu of wireless remote or factory return air Air Filter thermistor, screw terminals on the microprocessor circuit board Return air is filtered with a removable, washable filter.
  • Page 38 • Auto restart • External on/off control Indoor units are Wi-Fi compatible with the addition of an LG Wi-Fi • Dual thermistor control module accessory, and can be controlled by LG’s ThinQ™ app on • Dual set-point control a smart device.
  • Page 39 TWO-WAY CEILING CASSETTE General Data / Electrical Data Table 13: Two-Way Ceiling Cassette (TS Frames) Indoor Unit General Data. Model No. ARNU183TSA4 ARNU243TSA4 Capacity (Btu/h) 19,100 24,200 Max Power Input L/M/H Power Input at Factory Default (W) 24 / 29 / 34 25 / 30 / 40 Capacity (Btu/h) 21,500...
  • Page 40 TWO-WAY CEILING CASSETTE External Dimensions TS Frame Figure 24: ARNU183TSA4, ARNU243TSA4 Dimensions. 5-7/8 4-15/16 4-15/16 5-1/4 7-1/2 Condensate Lift: 27-9/16 5-1/2 16-1/8 (Hanging Bolt) 5-1/2 2-9/16 (Air Outlet Hole) 8-7/8 27-3/16 1-1/8 13/16 ± 1/8 40 | T WO-WAY ©...
  • Page 41 Figure 25: ARNU183TSA4, ARNU243TSA4 Wiring Diagram. 5/18 *If a Third-Party Dry Contact and an LG internal heater or an LG Auxiliary Heater Kit is installed, supplemental heat capability cannot be controlled by the Third-Party Thermostat. © T WO-WAY | 41...
  • Page 42 AC Power line input for indoor controller *If a Third-Party Dry Contact and an LG internal heater or an LG Auxiliary Heater Kit is installed, supplemental heat capability cannot be controlled by the Third-Party Thermostat. Table 16: TS Frame DIP Switch Settings.
  • Page 43 TWO-WAY CEILING CASSETTE Refrigerant Flow Diagram TS Frame Figure 26: TS Piping Diagram. :Cooling Heat Exchanger :Heating Filter Turbo Fan Filter lndoor unit Table 17: TS Frame Refrigerant Pipe Connection Port Diameters. Model Liquid (inch) Gas (inch) ARNU183TSA4 ARNU243TSA4 Table 18: TS Frame Thermistors. Thermistor Description Return air thermistor...
  • Page 44 TWO-WAY CEILING CASSETTE Acoustic Data Sound Pressure Levels Figure 27: Sound Pressure Measurement Location. • Measurements are taken 4.9 ft. away from the front of the unit. • Data is valid under nominal operating conditions. • Sound pressure levels are measured in dB(A) with a tolerance of ±3. •...
  • Page 45 TWO-WAY CASSETTE Acoustic Data Sound Power Levels Table 20: Two-Way Ceiling Cassette Indoor Unit Sound Power Levels. • Data is valid under diffuse field conditions. • Data is valid under nominal operating conditions. Sound Levels dB(A) Model • Sound power level is measured using rated conditions and tested High Fan Speed in a reverberation chamber under ISO Standard 3741.
  • Page 46 TWO-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU183TSA4 ARNU183TSA4 Cooling Heating Discharge angle: 35° Discharge angle: 35° Air velocity (ft./s) Air velocity (ft./s) 8.9 ft. 8.9 ft. 6.6 ft. 6.6 ft. 3.3 ft. 3.3 ft. 13.1 ft. 9.8 ft. 6.6 ft.
  • Page 47 TWO-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU183TSA4 Cooling Heating Discharge angle: 80° Discharge angle: 80° Air velocity (ft./s) Air velocity (ft./s) 8.9 ft. 8.9 ft. 6.6 ft. 6.6 ft. 3.3 ft. 3.3 ft. 13.1 ft. 9.8 ft. 6.6 ft. 3.3 ft.
  • Page 48 TWO-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU243TSA4 ARNU243TSA4 Cooling Heating Discharge angle: 35° Discharge angle: 35° Air velocity (ft./s) Air velocity (ft./s) 8.9 ft. 8.9 ft. 6.6 ft. 6.6 ft. 3.3 ft. 3.3 ft. 13.1 ft. 9.8 ft. 6.6 ft.
  • Page 49 TWO-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU243TSA4 Cooling Heating Discharge angle: 80° Discharge angle: 80° Air velocity (ft./s) Air velocity (ft./s) 8.9 ft. 8.9 ft. 6.6 ft. 6.6 ft. 3.3 ft. 3.3 ft. 13.1 ft. 9.8 ft. 6.6 ft. 3.3 ft.
  • Page 50 TWO-WAY CEILING CASSETTE Cooling and Heating Capacity Tables Table 21: Two-Way Cassette Cooling Capacity Table. Indoor Air Temperature (°F DB / WB) Model No. / Outdoor Air Temp. 68 / 57 73 / 61 79 / 64 80 / 67 85 / 70 88 / 73 91 / 76...
  • Page 51 Wi-Fi Module PWFMDD200 All accessories are sold separately. If a Third-Party Dry Contact and an LG internal heater or an LG Auxiliary Heater Kit is installed, supplemental heat capability cannot be controlled by the Third-Party Thermostat. © T WO-WAY | 51...

  • Page 52: Four-Way Ceiling Cassette

    FOUR-WAY 2' x 2' Frame 3' x 3' Frame CEILING CASSETTE Mechanical Specifications on page 53 General Data on page 55 Electrical Data on page 58 External Dimensions on page 59 Electrical Wiring Diagrams on page 62 Refrigerant Flow Diagram on page 66 Acoustic Data on page 67 Air Velocity / Temperature Distribution on page 75 Outside Air Ventilation on page 89...
  • Page 53 The case has a factory designated cutout for the connection of a mounted on vibration attenuating rubber grommets. The fan impeller field-supplied outside air duct. LG offers two flange kits. is statically and dynamically balanced. The fan speed is controlled...
  • Page 54 FOUR-WAY CEILING CASSETTE between the indoor unit(s) and outdoor unit is to be a minimum of 18 The indoor units are Wi-Fi compatible with the addition of an LG Wi- AWG, 2 conductor, twisted, stranded, and shielded cable (RS-485), Fi module accessory, and can be controlled by LG’s ThinQ™ app on terminated via screw terminals on the control boards.
  • Page 55 FOUR-WAY CEILING CASSETTE General Data Table 24: Four-Way Ceiling Cassette (2' x 2' TR and TQ Frames) Indoor Unit General Data. Model No. ARNU053TRD4 ARNU073TRD4 ARNU093TRD4 ARNU123TRD4 ARNU153TQD4 ARNU183TQD4 Capacity (Btu/h) 5,500 7,500 9,600 12,300 15,400 19,100 Max. Power Input L/M/H Power at Factory Default (W) 11 / 12 / 13 11 / 12 / 13...
  • Page 56 FOUR-WAY CEILING CASSETTE General Data Table 25: Four-Way Ceiling Cassette (3' x 3' TA Frames) Indoor Unit General Data. Model No. ARNU073TAA4 ARNU093TAA4 ARNU123TAA4 ARNU153TAA4 ARNU183TAA4 Capacity (Btu/h) 7,500 9,600 12,300 15,400 19,100 Max. Power Input L/M/H Power Input at Factory Default (W) 10.9 / 16.1 / 23.3 10.9 / 17.6 / 24.7 13.3 / 19.2 / 26.1...
  • Page 57 FOUR-WAY CEILING CASSETTE General Data Table 26: Four-Way Ceiling Cassette (3' x 3' TA Frames) Indoor Unit General Data, continued. Model No. ARNU243TAA4 ARNU283TAA4 ARNU363TAA4 ARNU423TAA4 ARNU483TAA4 Capacity (Btu/h) 24,200 28,000 36,200 42,000 48,100 Max. Power Input L/M/H Power Input at Factory Default (W) 24.7 / 31.1 / 40.0 26.1 / 35.2 / 45.5 31.1 / 43.4 / 64.7...
  • Page 58 FOUR-WAY CEILING CASSETTE Electrical Data Table 27: Four-Way Ceiling Cassette (2' x 2' and 3' x 3' Frames) Indoor Unit Electrical Data. Power Supply Power Input (W) Voltage Rated Model Max. Max. Range Amps (A) Volts Phase L / M / H at Factory Default Cooling Heating ARNU053TRD4...
  • Page 59 FOUR-WAY CEILING CASSETTE External Dimensions TR Frames Figure 30: ARNU053TRD4, ARNU073TRD4, ARNU093TRD4, ARNU123TRD4 Dimensions. 1-11/32 1-11/32 3-37/64 1-61/64 1-61/64 Maximum Condensate Lift: 27-9/16 3-37/64 3-37/64 © FOUR-WAY | 59...
  • Page 60 FOUR-WAY CEILING CASSETTE External Dimensions TQ Frames Figure 31: ARNU153TQD4, ARNU183TQD4 Dimensions. 3-37/64 1-11/32 1-11/32 1-61/64 1-61/64 Maximum Condensate Lift: 27-9/16 3-37/64 3-37/64 60 | FOUR-WAY ©...
  • Page 61 FOUR-WAY CEILING CASSETTE External Dimensions TA Frames Figure 32: ARNU073TAA4, ARNU093TAA4, ARNU123TAA4, ARNU153TAA4, ARNU183TAA4, ARNU243TAA4, ARNU283TAA4, ARNU363TAA4, ARNU423TAA4, and ARNU483TAA4 Dimensions. © FOUR-WAY | 61...
  • Page 62 Figure 33: ARNU053TRD4, ARNU073TRD4, ARNU093TRD4, ARNU123TRD4, ARNU153TQD4, ARNU183TQD4 Wiring Diagram. *If a Third-Party Dry Contact and an LG internal heater or an LG Auxiliary Heater Kit is installed, supplemental heat capability cannot be controlled by the Third-Party Thermostat. 62 | FOUR-WAY...
  • Page 63 AC power line input for indoor controller *If a Third-Party Dry Contact and an LG internal heater or an LG Auxiliary Heater Kit is installed, supplemental heat capability cannot be controlled by the Third-Party Thermostat. Table 29: TR / TQ Frame DIP Switch Settings.
  • Page 64 Figure 34: ARNU073TAA4, ARNU093TAA4, ARNU123TAA4, ARNU153TAA4, ARNU183TAA4, ARNU243TAA4, ARNU283TAA4, ARNU363TAA4, ARNU423TAA4, and ARNU483TAA4 Wiring Diagram. *If a Third-Party Dry Contact and an LG internal heater or an LG Auxiliary Heater Kit is installed, supplemental heat capability cannot be controlled by the Third-Party Thermostat. 64 | FOUR-WAY...
  • Page 65 AC Power supply AC Power line *If a Third-Party Dry Contact and an LG internal heater or an LG Auxiliary Heater Kit is installed, supplemental heat capability cannot be controlled by the Third-Party Thermostat. Table 31: TA Frame DIP Switch Settings.
  • Page 66 FOUR-WAY CEILING CASSETTE Refrigerant Flow Diagram TR, TQ, TA Frames Figure 35: TR, TQ, TA Frame Piping Diagram. Cooling Heat Exchanger Heating Filter Turbo Fan Filter lndoor unit Table 32: TR, TQ, TA Frame Refrigerant Pipe Connection Port Diameters. Model Liquid (inch) Vapor (inch) ARNU053TRD4...
  • Page 67 FOUR-WAY CEILING CASSETTE Acoustic Data Sound Pressure Levels Figure 36: Sound Pressure Measurement Location. • Measurements are taken 4.9 ft away from the front of the unit. • Sound pressure levels are measured in dB(A) with a tolerance of ±3. •...
  • Page 68 FOUR-WAY CEILING CASSETTE Acoustic Data Sound Pressure Levels Figure 37: ARNU053TRD4, ARNU073TRD4, and ARNU093TRD4 Sound Pressure Level Diagrams. ARNU053TRD4 ARNU073TRD4 ARNU093TRD4 Figure 38: ARNU123TRD4, ARNU153TQD4, and ARNU183TQD4 Sound Pressure Level Diagrams. ARNU123TRD4 ARNU153TQD4 ARNU183TQD4 68 | FOUR-WAY ©...
  • Page 69 FOUR-WAY CEILING CASSETTE Acoustic Data Sound Pressure Levels Figure 39: ARNU073TAA4, ARNU093TAA4, and ARNU123TAA4 Sound Pressure Level Diagrams. ARNU073TAA4 ARNU093TAA4 ARNU123TAA4 Figure 40: ARNU153TAA4, ARNU183TAA4, and ARNU243TAA4 Sound Pressure Level Diagrams. ARNU153TAA4 ARNU183TAA4 ARNU243TAA4 © FOUR-WAY | 69...
  • Page 70 FOUR-WAY CEILING CASSETTE Acoustic Data Sound Pressure Levels Figure 41: ARNU283TAA4, ARNU363TAA4, and ARNU423TAA4 Sound Pressure Level Diagrams. ARNU283TAA4 ARNU363TAA4 ARNU423TAA4 Figure 42: ARNU483TAA4 Sound Pressure Level Diagram. ARNU483TAA4 70 | FOUR-WAY ©...
  • Page 71 FOUR-WAY CEILING CASSETTE Acoustic Data Sound Power Levels Table 36: 2' x 2' Four-Way Ceiling Cassette Indoor Unit Sound Power • Data is valid under diffuse field conditions. Levels. • Data is valid under nominal operating conditions. Sound Power Levels dB(A) •...
  • Page 72 FOUR-WAY CEILING CASSETTE Acoustic Data Sound Power Levels Figure 44: ARNU123TRD4, ARNU153TQD4, and ARNU183TQD4 Sound Power Level Diagrams. ARNU123TRD4 ARNU153TQD4 ARNU183TQD4 72 | FOUR-WAY ©...
  • Page 73 FOUR-WAY CEILING CASSETTE Acoustic Data Sound Power Levels Figure 45: ARNU073TAA4, ARNU093TAA4, and ARNU123TAA4 Sound Power Level Diagrams. ARNU073TAA4 ARNU093TAA4 ARNU123TAA4 120.0 120.0 120.0 ■ High ■ High ■ High ▲ Middle ▲ Middle ▲ Middle 110.0 110.0 110.0 NR-110 NR-110 NR-110 100.0...
  • Page 74 FOUR-WAY CEILING CASSETTE Acoustic Data Sound Power Levels Figure 47: ARNU283TAA4, ARNU36TAA4, and ARNU423TAA4 Sound Power Level Diagram. ARNU283TAA4 ARNU363TAA4 ARNU423TAA4 120.0 120.0 120.0 ■ High ■ High ■ High ▲ Middle ▲ Middle ▲ Middle 110.0 110.0 110.0 NR-110 NR-110 NR-110 100.0...
  • Page 75 FOUR-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU053TRD4 Figure 49: ARNU053TRD4. i l o i t a Discharge angle: 20° Discharge angle: 20° Air velocity ft/s Air velocity ft/s 8.9 ft 8.9 ft 3. 3 6.6 ft 6.6 ft 3.3 ft 3.3 ft 0 ft...
  • Page 76 FOUR-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU053TRD4, ARNU073TRD4 Figure 50: ARNU053TRD4, continued. Discharge angle: 70° Discharge angle: 70° Air velocity ft/s Air velocity ft/s 8.9 ft 8.9 ft 3. 3 4. 9 4. 9 3. 9 3. 9 1.
  • Page 77 FOUR-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU073TRD4 Figure 52: ARNU073TRD4, continued. n i l Discharge angle: 50° Discharge angle: 40° Air velocity ft/s Air velocity ft/s 8.9 ft 8.9 ft 6.6 ft 6.6 ft 3.3 ft 3.3 ft 8.2 ft 4.9 ft 0 ft...
  • Page 78 FOUR-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU093TRD4 Figure 53: ARNU093TRD4. i l o i t a Discharge angle: 20° Discharge angle: 20° Air velocity ft/s Air velocity ft/s 8.9 ft 8.9 ft 3. 3 6.6 ft 6.6 ft 3.3 ft 3.3 ft 8.2 ft...
  • Page 79 FOUR-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU093TRD4, ARNU123TRD4 Figure 54: ARNU093TRD4, continued. n i l Discharge angle: 70° Discharge angle: 70° Air velocity ft/s Air velocity ft/s 8.9 ft 8.9 ft 3. 3 4. 9 4. 9 3. 9 3.
  • Page 80 FOUR-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU123TRD4 Figure 56: ARNU123TRD4, continued. Discharge angle: 50° Discharge angle: 40° Air velocity ft/s Air velocity ft/s 8.9 ft 8.9 ft 1.5(4 6.6 ft 6.6 ft 1.5( ) 1.5( ) 1.0( ) 1.0 3) 0.5( 0.5 6)
  • Page 81 FOUR-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU153TQD4 Figure 57: ARNU153TQD4. n i l Discharge angle: 20° Discharge angle: 20° Air velocity ft/s Air velocity ft/s 8.9 ft 8.9 ft 6.6 ft 6.6 ft 3.3 ft 3.3 ft 13.1 ft 6.6 ft 13.1 ft 0 ft...
  • Page 82 FOUR-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU153TQD4, ARNU183TQD4 Figure 58: ARNU153TQD4, continued. n i l Discharge angle: 70° Discharge angle: 70° Air velocity ft/s Air velocity ft/s 8.9 ft 8.9 ft 6.6 ft 6.6 ft 3.3 ft 3.3 ft 13.1 ft 6.6 ft 3.3 ft...
  • Page 83 FOUR-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU183TQD4 Figure 60: ARNU183TQD4, continued. n i l Discharge angle: 40° Discharge angle: 50° Air velocity ft/s Air velocity ft/s 8.9 ft 8.9 ft 2.0( 2.0( 6) .0 . ) 6.6 ft 6.6 ft 1.5( ) 1.5( )
  • Page 84 FOUR-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU073TAA4, ARNU093TAA4 Figure 61: ARNU073TAA4. Cooling Heating Discharge angle: Outside - 30°, Inside - 67° Discharge angle: Outside - 36°, Inside - 70° Air velocity [ft./s] Air velocity [ft./s] 8.9 ft. 8.9 ft. 0.82 0.82 0.82...
  • Page 85 FOUR-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU123TAA4, ARNU153TAA4 Figure 63: ARNU123TAA4. Cooling Heating Discharge angle: Outside - 30°, Inside - 67° Discharge angle: Outside - 36°, Inside - 70° Air velocity [ft./s] Air velocity [ft./s] 8.9 ft. 8.9 ft. 0.82 0.82 6.6 ft.
  • Page 86 FOUR-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU183TAA4, ARNU243TAA4 Figure 65: ARNU183TAA4. Cooling Heating Discharge angle: Outside - 30°, Inside - 67° Discharge angle: Outside - 36°, Inside - 70° Air velocity [ft./s] Air velocity [ft./s] 8.9 ft. 8.9 ft. 0.82 0.82 6.6 ft.
  • Page 87 FOUR-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU283TAA4, ARNU363TAA4 Figure 67: ARNU283TAA4. Cooling Heating Discharge angle: Outside - 30°, Inside - 67° Discharge angle: Outside - 36°, Inside - 70° Air velocity [ft./s] Air velocity [ft./s] 8.9 ft. 8.9 ft. 0.82 0.82 0.82...
  • Page 88 FOUR-WAY CEILING CASSETTE Air Velocity / Temperature Distribution ARNU423TAA4, ARNU483TAA4 Figure 69: ARNU423TAA4. Heating Cooling Discharge angle: Outside - 36°, Inside - 70° Discharge angle: Outside - 30°, Inside - 67° Air velocity [ft./s] Air velocity [ft./s] 10.5 ft. 10.5 ft. 8.9 ft.
  • Page 89 FOUR-WAY CEILING CASSETTE Outside Air Ventilation TR, TQ Frame Figure 71: TR Frame Outside Air Ventilation. Outside Air Ventilation (with PTVK430) -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -1.0 Q (CFM) Figure 72: TQ Frame Outside Air Ventilation. Outside Air Ventilation (with PTVK430) -0.1 -0.2...
  • Page 90 FOUR-WAY CEILING CASSETTE Outside Air Ventilation TA Frame Figure 73: TA Frame Outside Air Ventilation with PTVK430 Accessory. Figure 74: TA Frame Outside Air PTVK420 Ventilation Kit with PTVK420 Flange. 90 | FOUR-WAY ©...
  • Page 91 FOUR-WAY CEILING CASSETTE Branch Duct Options TA Frame Figure 75: Four-Way TAA Cassette Indoor Unit Branch Option P-Q Curves. Figure 76: Four-Way TAA Cas- sette Indoor Unit Branch Duct Four-Way Ceiling Cassette – 7~48k Btu Options. Side Branch Duct, Option 1 Upper Limit Air Flow (CFM)
  • Page 92 FOUR-WAY CEILING CASSETTE Branch Duct Options TA Frame Figure 77: Four-Way TAA Cassette Indoor Unit Branch Option P-Q Curves, continued. Four-Way Ceiling Cassette – 7~48k Btu Side Branch Duct, Option 3 Upper Limit Air Flow (CFM) Four-Way Ceiling Cassette – 7~48k Btu Side Branch Duct, Option 4 Upper Limit...
  • Page 93 FOUR-WAY CEILING CASSETTE Cooling Capacity Table Table 38: Four-Way Ceiling Cassette Cooling Capacity Table. Indoor Air Temperature (°F DB / WB) Outdoor Air Model No. / Capacity Index 68 / 57 73 / 61 79 / 64 80 / 67 85 / 70 88 / 73 91 / 76...
  • Page 94 FOUR-WAY CEILING CASSETTE Heating Capacity Table Table 39: Four-Way Ceiling Cassette Heating Capacity Table. Indoor Air Temperature (°F DB) Outdoor Air Temp. Model No. / Capacity Index °F DB °F WB ARNU053TRD4 / 5.5 ARNU073TRD4 / 7.5 ARNU093TRD4 / 9.6 12.2 12.1 12.0...
  • Page 95 PWFMDD200 For Use With All Four-Way Ceiling Cassette Indoor Units If a Third-Party Dry Contact and an LG internal heater or an LG Auxiliary Heater Kit is installed, supplemental heat capability cannot be controlled by the Third-Party Thermostat. © FOUR-WAY | 95...

  • Page 96: Application Guidelines

    APPLICATION GUIDELINES Selecting the Best Location on page 97 General Mounting on page 98 General Drain Piping Information on page 100 Wiring Guidelines on page 101 Wired Controller Location on page 106 Acronyms on page 107...
  • Page 97 APPLICATION GUIDELINES Selecting the Best Location Selecting the Best Location Figure 78: Selecting the Best Location / Minimum Clearance Require- ments — One-, Two-, and Four-Way Ceiling-Cassette Indoor Units. Do’s • Place the unit where air circulation will not be blocked. •...
  • Page 98 APPLICATION GUIDELINES General Mounting General Mounting The ceiling must be strong and solid enough to protect the unit from vibration. All ceiling-cassette indoor units include a pattern to help deter- mine the size necessary for the opening in the false ceiling (paper pattern dimensions match those for the ceiling opening dimensions), and where the hanging bolts and refrigerant / drain piping are placed.
  • Page 99 APPLICATION GUIDELINES General Mounting General Mounting Procedure Figure 83: Using the Paper Pattern / Drilling Holes for the Bolts, Refrigerant and Condensate Piping. 1. Using the included paper pattern, select and mark the area where the hanging bolts, refrigerant and condensate piping will be placed. The hanging bolts must be slightly tilted to the direction of the drain hose.
  • Page 100 APPLICATION GUIDELINES General Drain Piping Information General Drain Piping Information Figure 86: Ceiling-Cassette Indoor Unit Drain Pump to Drain Piping System. All ceiling-cassette indoor units generate water during cooling operation, therefore, properly handling this condensation must be considered. Hanger distance Ceiling-cassette indoor units include factory-installed drain pumps.
  • Page 101 APPLICATION GUIDELINES General Drain Piping Information / Wiring Guidelines Common Indoor Unit Drainage System Figure 88: Example of a Common Indoor Unit Drainage System. It is usual work practice to connect individual 45° to 60° Angle 45° to 60° angle for protection against overflow indoor unit drain pipes to one common indoor unit drainage system.
  • Page 102 APPLICATION GUIDELINES Wiring Guidelines Do Not’s • • Connection Procedure Indoor unit installation best practices are to connect control wiring (low voltage) and then connect power wiring (high voltage). Do not apply power to the indoor unit or any Multi V system component until authorized to do so by the system commissioning agent. 1.
  • Page 103 APPLICATION GUIDELINES Wiring Guidelines One-Way Cassette TT, TU Frames Figure 90: Typical TT, TU Frame Wiring / Cable Routing. Lock nut Conduit Conduit mounting plate 1(L1) 2(L2) 3(A) 4(B) Power Supply Communications High Voltage (208/230V) Figure 89: TT, TU Frame Wiring / Cable Connections. Outdoor Unit Terminal Block Indoor Unit Terminal Block SODU...
  • Page 104 APPLICATION GUIDELINES Wiring Guidelines Two-Way Cassette TS Frame Figure 91: Typical TS Frame Wiring / Cable Routing. Lock nut Conduit Power Wiring Communication Cable / Remote Controller Wiring Figure 92: TS Frame Wiring / Cable Connections. Outdoor Unit Terminal Block Indoor Unit Terminal Block INTERNET DRY1...
  • Page 105 APPLICATION GUIDELINES Wiring Guidelines Four-Way Cassette TR, TQ, TA Frames Figure 93: TR / TQ Frame Four-Way Cassette Wiring / Cable Routing. Figure 94: TA Frame Four-Way Cassette Wiring / Cable Routing. Communication Cable Remote Controller Wiring Power Wiring Remote Power Supply Wiring / Controller Cable Communication Cable...
  • Page 106 APPLICATION GUIDELINES Wired Controller Placement Figure 98: Proper Location for the Wired Controller. Wired Controller Placement Wired controllers include a sensor to detect room temperature. To maintain comfort levels in the conditioned space, the wired controller must be installed in a location away from direct sunlight, high humid- ity, and where it could be directly exposed to cold air.

  • Page 107: Acronyms

    Aq inches water Air Handling Unit International Standards Organization ASHRAE American Society of Heating, Refrigeration, and Air Conditioning LATS LG Air Conditioning Technical Solution software ASTM American Society for Testing and Materials Light Emitting Diode American Wire Gauge LEED...
  • Page 108 EM_MultiV_CeilingCassette_wTA_IndoorUnits_11_23 Supersedes: EM_MultiV_CeilingCassette_wTA_IndoorUnits_10_23 EM_MultiV_CeilingCassette_wTA_IndoorUnits_2_22 EM_MultiV_CeilingCassette_wTA_IndoorUnits_8_21 EM_MultiV_CeilingCassette_IndoorUnits_6_20 EM_MultiV_CeilingCassette_IndoorUnits_12_19 LG Electronics, U.S.A., Inc. EM_MultiV_CeilingCassette_IndoorUnits_6_18 Air Conditioning Technologies EM_MultiV_CeilingCassette_IndoorUnits_8_17 4300 North Point Parkway EM_MultiV_CeilingCassette_IndoorUnits_8_16 Alpharetta, Georgia 30022 EM_MultiV_CeilingCassette_IndoorUnits_4_16 www.lghvac.com...

This manual is also suitable for:

Multi v arnu093tud4Multi v arnu123tud4Multi v arnu183ttd4Multi v arnu243ttd4