SINGLE ZONE MEGA WALL MOUNTED ENGINEERING MANUAL 3/4, 1, 1-1/2, and 2 Tons 3/4 and 1 Tons LS090HEV1 LS120HEV1 LS180HEV1 LS240HEV1 LS090HXV LS120HXV Mega Inverter Models: Mega 115V Models:
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 4. 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.
About LG Electronics LG Electronics is a global leader and technology innovator in consumer electronics, mobile communications, and home appliances. LG Electronics comprises five business units—Home Entertainment, Mobile Communications, Air Conditioning, Business Solutions, and Home Appliance. LG is one of the world’s leading producers of flat panel televisions, audio and video products, mobile handsets, air conditioners, and washing machines.
TABLE OF CONTENTS INTRODUCTION...................................................................................... 5 Accessories.......................................................................................... 37 ARCHITECTURAL APPEAL................................................................... 6 PERFORMANCE DATA......................................................................... 39 Cooling Capacity................................................................................
INTRODUCTION “Architectural Appeal” on page 6
ARCHITECTURAL APPEAL Convergence of Technological Innovation with Flexibility and Style Benefits of Single Zone Mega Inverter Wall Mounted • Inverter technology Single Zone Mega Wall Mounted Engineering Manual • Mega Inverter (HEV1) is available in 9,000, 12,000, 18,000, and 24,000 Btu/h capacities; Mega 115V (HXV) is available in 9,000 and 12,000 Btu/h capacities • All-season use - heat pump models for both cooling and heating capabilities Single Zone Mega Wall Mounted Choosing an LG Single-Zone Mega
PRODUCT DATA “Product Features and Benefits” on page 8 “Unit Nomenclature” on page 9 “General Data” on page 10 “Electrical Data” on page 13 “Outdoor Unit Dimensions” on page 15 “Indoor Unit Dimensions” on page 19 “Acoustic Data” on page 23 “Refrigerant Flow Diagrams” on page 25 “Wiring Diagrams—Indoor Units” on page 29 “Wiring Diagrams—Outdoor Units” on page 33 “Accessories - LG Monitoring View Diagnostic Software” on page 37
PRODUCT FEATURES AND BENEFITS Single Zone Mega Wall Mounted Engineering Manual Single Zone Mega Wall Mounted Single zone systems are equipped with inverter components that offer superior load matching and long piping installation. These products work for optimizing power consumption in residential and small office buildings. Utilizing multiple indoor wall mounted units each with custom temperature controls allow for precise temperature settings in each zone of the building.
UNIT NOMENCLATURE Single Zone Wall Mount Indoor and Outdoor Units LS N 090 HEV 1 Family LA= Art Cool Premier / Gallery / Mirror LS= High Efficiency Wall Mount / Standard / Mega Type N = Indoor Wall Mount Unit U = Outdoor Heat Pump Unit Product Data Nominal Capacity (Nominal cooling capacity in Btu/h) 090/091 = 9,000 120/121 = 12,000 180/181 = 18,000 240 = 24,000 300/307 = 30,000 360 = 36,000 Indoor/Outdoor Product HEV = Mega HXV = Mega 115V HYV = Art Cool Premier HVP = Art Cool Gallery HSV = Art Coo
GENERAL DATA Mega Pairing Table The following table shows the available outdoor and indoor unit, along with the factory provided controller.
GENERAL DATA Mega Inverter Specifications Table 2: Single Zone Mega Inverter System Specifications. System Model Number (IDU/ODU) LS120HEV1 (LSN120HEV1/ LSU120HEV1) LS180HEV1 (LSN180HEV1/ LSU180HEV1) LS240HEV1 (LSN240HEV1/ LSU240HEV1) 5,570 (62%) 7,620 (63%) 15,580 (82%) 18,040 (82%) 12.5 19.0 9.0 10.52 17.0 9.2 10.97 18.0 9.0 10.76 17.0 9.0 42/40/35/29 51 45/40/35/29 53 28/30 78/82 28/32 95/104 Twin Rotary (1) Twin Rotary (1) 3,070 ~ 8,500 ~ 9,500 0.68 3,070 ~ 9,000 ~ 10,500 0.78 11.
GENERAL DATA Mega 115V Specifications Single Zone Mega Wall Mounted Engineering Manual Table 3: Single Zone Mega 115V System Specifications.
ELECTRICAL DATA Mega Inverter and Mega 115V Outdoor Units Table 4: 208-230V, 60Hz, 1-Phase Single-Zone Mega Inverter System Electrical Data Table. Compressor Compressor(A) Qty Cool/Heat Model Number Nominal Tons Fan Qty ODU Fan (A) IDU Fan (A) MCA(A) MOP(A) LS090HEV1 3/4 1 7.0/7.0 1 0.5 0.5 10 15 LS120HEV1 1 1 7.0/7.0 1 0.5 0.5 10 15 LS180HEV1 1-1/2 1 8.81/8.61 1 0.4 0.4 12 20 LS240HEV1 2 1 10.72/10.28 1 0.4 0.
FUNCTIONS, CONTROLS, OPTIONS Air Purifying Functions Controllers Other Special Function Kit Single Zone Mega Wall Mounted Engineering Manual Airflow Table 6: Indoor Units—Functions, Controls and Options.
OUTDOOR UNIT DIMENSIONS LSU090HEV1, LSU120HEV1 28-1/4 18-1/4 10-11/16 10-1/16 9-1/16 Discharge Air Grille Gas Pipe Connection Port Liquid Pipe Connection Port Control Box Ground Terminal 2-1/4 28-1/4 Product Data 10-9/16 4-5/8 -3/8 Ø17 4 2 2-3/16 8-5/8 1/2 5 18-3/4 2-1/4 9-5/16 19-1/2 1 Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved.
OUTDOOR UNIT DIMENSIONS LSU180HEV1 30-5/16 22 4-3/16 Part Name 13-15/16 Discharge Air Grille Gas Pipe Connection Port 6-1/8 Liquid Pipe Connection Port Control Box Ground Terminal 2-1/8 5/16 PRODUCT DATA 2 2-13/16 20-15/16 5 3 8 -1/8 10-1/2 9-3/8 20 | 5-3/4 4 Ø18- 16 11-5/16 1 10-15/16 21-1/2 Single Zone Mega Wall Mounted Engineering Manual Item No.
OUTDOOR UNIT DIMENSIONS LSU240HEV1 34-1/4 21-1/2 6-5/16 Item No. Part Name Discharge Air Grille 14 -3/16 Gas Pipe Connection Port Liquid Pipe Connection Port Control Box Ground Terminal 2-3/16 12-5/8 5-13/16 11-15/16 Product Data Ø20-15/16 21-1/8 3 3-1/8 12-5/8 10-7/16 25-13/16 24-13/16 1 Unit: Inch Center of Gravity Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ.
OUTDOOR UNIT DIMENSIONS LSU090HXV, LSU120HXV 28-1/4 10 -1/16 10-11/16 9-1/16 . Discharge Air Grille Gas Pipe Connection Port Liquid Pipe Connection Port 2-1/4 Control Box Ground Terminal 28-1/4 10-9/16 /8 7-3 Ø1 4 19-1/16 1 2 2-3/16 5 2-1/4 7/16 9-5/16 Single Zone Mega Wall Mounted Engineering Manual 18-1/4 18 | PRODUCT DATA Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ.
INDOOR UNIT DIMENSIONS LSN090HEV1 7-1/4 3 10 -7/16 29-3/4 1-3/4 2-3/8 2 2 2-3/16 1-3/4 4 1 Product Data 2 Part Name Item No. 2-1/8 2 2-3/8 Place a level on raised tab Left rear piping 14-7/8 14-7/8 Ø2-9/16 Ø2-9/16 Installation Plate 5 Right rear piping Unit Outline 5-11/16 7- 9/16 Return Air Grille Knockout Hole for Piping and Cables 5-5/8 2-15/16 7- 9/16 Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A.
INDOOR UNIT DIMENSIONS LSN120HEV1 8-1/4 4 2 2-3/8 11 -1/4 34-13/16 2 1-3/4 2-3/16 1-3/4 1 2 Item No.
INDOOR UNIT DIMENSIONS 9-13/16 LSN180HEV1, LSN240HEV1 Return Air Grille Knockout Hole for Piping & Cable 9-13/16 2-1/16 2-1/16 12-13/16 40-9/16 1-13/16 1-13/16 2-9/16 18-1/8 Product Data 4 22-3/8 Unit Outline 5 Ø2-9/16 Left Rear Piping 7-1/4 7.24in(184mm) 8-11/16 Place a level on raised tab Ø2-9/16 6-3/16 6.14in(156mm) Right Rear Piping 12-1/8 Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc.
INDOOR UNIT DIMENSIONS LSN090HXV, LSN120HXV 8-5/16 34-7/8 11 -1/4 Single Zone Mega Wall Mounted Engineering Manual 3 4 1 2 15/16 4 2-5/16 for piping and cable 6-5/16 Place a level on raised tab Unit Outline 17-7/16 17-7/16 Ø2-13/16 Left rear piping Ø2-13/16 Installation Plate 5-1/4 6-15/16 22 | Return Air Grille PRODUCT DATA 5 3-3/4 8-9/16 Right rear piping Unit: Inch Due to our policy of continuous product innovation, some specifications may change without notification.
OUTDOOR UNIT ACOUSTIC DATA Mega Inverter and Mega 115V Outdoor Units • Measurements are taken 3.28 ft away from the front of the unit. • Sound pressure levels are measured in dB(A) with a tolerance of ±3. • Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745. • Sound level will vary depending on a range of factors including the construction (acoustic absorption coefficient) of a particular room in which the unit was installed.
INDOOR UNIT ACOUSTIC DATA Mega Inverter and Mega 115V Outdoor Units Figure 4: Indoor Unit Sound Levels • • • • Measurements are taken 3.28 ft away from the front of the unit. Sound pressure levels are measured in dB(A) with a tolerance of ±3. Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745. Sound level will vary depending on a range of factors including the construction (acoustic absorption coefficient) of a particular room in which the unit was installed.
REFRIGERANT FLOW DIAGRAMS Mega Inverter LSN/LSU090-120HEV1 Indoor Unit Outdoor Unit F IELD PIPI N G (Ø 1/ 4" Copper Tubing) 2-Way Valve Liqui d Side EEV M TH1 He at Exchanger (Evaporator) TH5 TH3 TH2 Heat Exchanger (Condenser) M F IELD PIPI N G (Ø 3/ 8" Copper Tubi ng) 3- Wa y Valve Reversing Valv e TH6 Accumula to r TH4 Compresso r Thermistor Description PCB Connector TH1 Indoor air temperature thermistor CN-TH1 (Indoor) TH2 Water level sensor (optional) CN-TH2 (Indoor) TH3 Ev
REFRIGERANT FLOW DIAGRAMS Mega Inverter LSN/LSU180HEV1 Indoor Unit Outd oor Unit F IELD PIPI N G (Ø 1/ 4" Copper Tubing) 2-Way Valve Single Zone Mega Wall Mounted Engineering Manual Liquid Side EEV M TH1 He at Exchanger (Ev aporator) TH5 TH3 TH2 Heat Exchanger (Condenser) M F IELD PIPI N G (Ø 1/ 2" Copper Tubi ng) 3-Wa y Valve Re ve rsing Va lv e TH6 Gas Si de Accumulator TH4 Compresso r 26 Thermistor Description PCB Connector TH1 Indoor air temperature thermistor CN-TH1 (Indoor)
REFRIGERANT FLOW DIAGRAMS Mega Inverter LSN/LSU240HEV1 Indoor Unit Outdoor Unit F IELD PIPI N G (Ø 1/ 4" Copper Tubing) 2-Way Valve Liquid Side EEV M TH1 He at Exchanger (Evaporator) TH5 TH3 TH2 Heat Exchanger (Condenser) M F IELD PIPIN G (Ø 5/ 8" Copper Tubi ng) 3-Wa y Valve Re ve rsing Va lv e TH6 Gas Side TH4 Compressor Thermistor Description PCB Connector TH1 Indoor air temperature thermistor CN-TH1 (Indoor) TH2 Water level sensor (optional) CN-TH2 (Indoor) TH3 Evaporator mi
REFRIGERANT FLOW DIAGRAMS Mega 115V LSN/LSU090-120HXV In d o o r Un it O u td o o r Un it FIELD PIPING Liquid Side (Ø 1/4" Copper Tubing) EEV 2-Way Valve Single Zone Mega Wall Mounted Engineering Manual TH1 Heat Exchanger (Evaporator) TH2 Heat Exchanger (Condenser) TH5 TH4 Gas Side 3-Way Valve FIELD PIPING (Ø 3/8" Copper Tubing) Reversing Valve Accumulator TH3 Compressor 28 Thermistor Description PCB Connector TH1 Indoor air temperature thermistor CN-TH1 (Indoor) TH2 Evaporator middl
WIRING DIAGRAM Mega Inverter LSN090HEV1 CN-L1 Product Data Inverter Singl Option Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
WIRING DIAGRAM Mega Inverter LSN120HEV1 Single Zone Mega Wall Mounted Engineering Manual Option CN-L1 30 | PRODUCT DATA Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
WIRING DIAGRAM Mega Inverter LSN180HEV1 and LSN240HEV1 Option Product Data Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
WIRING DIAGRAM Single Zone Mega Wall Mounted Engineering Manual Mega 115V LSN090HXV and LSN120HXV 32 | PRODUCT DATA Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
WIRING DIAGRAM Mega Inverter LSU090HEV1 and LSU120HEV1 Option Product Data Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
WIRING DIAGRAM Single Zone Mega Wall Mounted Engineering Manual Mega Inverter LSU180HEV1 34 | PRODUCT DATA Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
WIRING DIAGRAM Mega Inverter LSU240HEV1 Product Data Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
WIRING DIAGRAM Mega 115V LSU090HXV and LSU120HXV Single Zone Mega Wall Mounted Engineering Manual 250V 250V 250V 36 | PRODUCT DATA Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
ACCESSORIES Table 9: Optional Zone Controllers for Mega 115 HXV Systems (see page 14 for Functions, Controls and Options). Zone Controller Name Simple Controller with mode selection Simple Controller without mode selection Max Wire Case Color Length (ft) Model No. PQRCVCL0Q Black PQRCVCL0QW White PQRCHCA0Q Black PQRCHCA0QW LG Premium Controller PREMTB10U 164 Allows control of indoor unit on/off, operation mode, fan speed, and temperature setpoint for up to 16 indoor units.
ACCESSORIES LG Monitoring View (LGMV) Diagnostic Software and Cable (PRCTSL1 and PRCTFE1) Single Zone Mega Wall Mounted Engineering Manual LGMV software allows the service technician or commissioning agent to connect a computer USB port to the outdoor unit main printed circuit board (PCB) using an accessory cable without the need for a separate interface device.
PERFORMANCE DATA “Cooling Capacity Data” on page 40 “Heating Capacity Data” on page 43
PERFORMANCE DATA Cooling Capacity LS090HEV1, LS120HEV1 Table 11: LSN090HEV1/LSU120HEV1 Cooling Capacities. Single Zone Mega Wall Mounted Engineering Manual Outdoor Air 64 / 53 Temp. (°F DB) TC SHC 14 23 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 5.20 5.59 5.67 5.89 6.11 6.33 6.55 6.77 6.99 7.21 7.43 7.65 7.55 7.35 7.16 6.96 6.75 6.57 6.40 6.22 6.04 5.87 5.59 4.11 4.41 4.47 4.64 4.82 4.99 5.17 5.34 5.51 5.69 5.86 6.04 5.96 5.80 5.65 5.49 5.33 5.19 5.05 4.91 4.77 4.63 4.41 PI 0.
PERFORMANCE DATA Cooling Capacity LS180HEV1, LS240HEV1 Table 13: LSN0180HEV1/LSU180HEV1 Cooling Capacities. Outdoor Air 64 / 53 Temp. (°F DB) TC SHC 10.41 11.17 11.33 11.77 12.21 12.65 13.10 13.54 13.98 14.42 14.86 15.30 15.10 14.71 14.32 13.93 13.50 13.15 12.80 12.44 12.09 11.73 11.17 8.12 8.72 8.84 9.18 9.53 9.87 10.21 10.56 10.90 11.25 11.59 11.93 11.78 11.47 11.17 10.86 10.53 10.26 9.98 9.71 9.43 9.15 8.71 PI 6.58 6.55 6.69 7.18 7.68 8.17 8.66 9.15 9.64 10.14 10.63 11.12 11.44 11.94 12.76 13.31 13.
PERFORMANCE DATA Cooling Capacity LS090HXV, LS120HXV Table 15: LSN090HXV/LSU090HXV Cooling Capacities. Single Zone Mega Wall Mounted Engineering Manual Outdoor Air Temp. (°F DB) 14 23 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 64 / 53 TC SHC PI 5.20 5.59 5.67 5.89 6.11 6.33 6.55 6.77 6.99 7.21 7.43 7.65 7.55 7.35 7.16 6.96 6.75 6.57 6.40 6.22 6.04 5.87 5.59 0.30 0.30 0.31 0.33 0.35 0.37 0.40 0.42 0.44 0.46 0.49 0.51 0.52 0.55 0.58 0.61 0.63 0.64 0.65 0.65 0.66 0.67 0.67 4.
PERFORMANCE DATA Heating Capacity LS090HEV1, LS120HEV1, LS180HEV1 Table 17: LSN090HEV1/LSU090HEV1 Heating Capacities. Outdoor Air Temp. °F DB °F WB 16 19 24 32 41 43 47 53 59 64 70 75 14 17 23 30 38 40 43 50 53 57 61 65 Indoor Air Temperature (°F DB) TC 60 5.70 5.81 6.37 7.64 8.77 9.05 9.47 9.57 9.78 9.99 10.18 10.32 PI 0.62 0.64 0.67 0.72 0.77 0.78 0.80 0.80 0.81 0.83 0.84 0.85 TC 64 5.52 5.64 6.18 7.41 8.50 8.77 9.18 9.27 9.49 9.69 9.87 10.01 PI 0.62 0.64 0.66 0.71 0.76 0.77 0.79 0.80 0.80 0.
PERFORMANCE DATA Heating Capacity LS240HEV1, LS090HXV, LS120HXV Table 20: LSN240HEV1/LSU240HEV1 Heating Capacities. Outdoor Air Temp. Single Zone Mega Wall Mounted Engineering Manual °F DB °F WB 16 19 24 32 41 43 47 53 59 64 70 75 14 17 23 30 38 40 43 50 53 57 61 65 Indoor Air Temperature (°F DB) TC 60 13.92 14.21 15.58 18.68 21.43 22.12 23.15 23.38 23.91 24.42 24.89 25.23 PI 15.45 15.92 16.51 17.83 19.00 19.30 19.74 19.93 20.13 20.53 20.82 21.12 TC 64 13.50 13.77 15.11 18.11 20.78 21.45 22.
PERFORMANCE DATA Air Flow and Temperature Distributions Graphs LSN090HEV1 Cooling Heating Discharge angle:45° Discharge angle:50° Air velocity [ft/s] Air velocity [ft/s] [ ft ] 6.6 6.6 9.8 1.6 8.2 4.9 3.3 3.3 3.3 6.6 4.9 1.6 16.4 13.1 9.8 6.6 3.3 6.6 4.9 4.9 1.6 [ ft ] 8.2 [ ft ] 3.3 0 0 Temperature [°F] 1.6 [ ft ] 16.4 13.1 3.3 9.8 3.3 1.6 6.6 3.3 0 0 Temperature [°F] 6.6 2 6.6 78.8 69. 8 66. 8 69. [ ft ] Product Data 73.4 [ ft ] 82.4 3.
PERFORMANCE DATA Air Flow and Temperature Distributions Graphs LSN180HEV1 Cooling Heating Discharge angle:45° Discharge angle:50° Air velocity [ft/s] Air velocity [ft/s] [ ft ] [ ft ] 6.6 6.6 3.3 4.9 6.6 8.2 16.4 13.1 4.9 4.9 1.6 3.3 [ ft ] 9.8 3.3 6.6 3.3 0 0 Temperature [°F] 3.3 6.6 4.9 8.2 3.3 [ ft ] 16.4 13.1 9.8 6.6 3.3 0 0 Temperature [°F] 66. 2 [ ft ] [ ft ] 6.6 6.6 84. 2 69. 8 66. 2 [ ft ] 16.4 13.1 9.8 69. 8 66. 2 6.6 84. 2 3.3 3.
PERFORMANCE DATA Air Flow and Temperature Distributions Graphs LSN090HXV Cooling Heating Discharge angle: 45° Discharge angle: 50° Air velocity [ft/s] Air velocity [ft/s] 9.8 6.6ft .5 11 9.8 8.2 3.3ft 4.9 26.2ft 23.0ft 19.7ft 16.4ft 13.1ft 9.8ft 6.6ft 3.3ft 0ft 0ft Temperature [°F] 13.1 26.2ft 23.0ft 19.7ft 16.4ft 6.6 4.9 3. 3 13.1ft 9.8ft 6.6ft 3.3ft 8.2 6.6 3. 3 5 11 . 6.6ft 3.3ft 0ft 0ft Temperature [°F] 6.6ft 98. 6 91. 4 66. 2 Product Data 87. 8 3.
Single Zone Mega Wall Mounted Engineering Manual 48 | PRODUCT DATA Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
APPLICATION GUIDELINES “Equipment Selection Procedure” on page 50 “Building Ventilation Design Guide” on page 52 “Placement Considerations” on page 54
EQUIPMENT SELECTION PROCEDURE Cooling / Heating Correction Factors For the Single Zone Mega Wall Mounted system, calculate the equivalent length of the liquid line from the outdoor unit to the indoor unit. Also, determine the elevation difference of the indoor unit above or below the outdoor unit. Find corresponding cooling or heating capacity correction factors as shown in Figures 17 through 20.
EQUIPMENT SELECTION PROCEDURE Figure 19: LS090HXV, LS120HXV Cooling Coefficient Factor. Cooling Capacity (%) 100 95 90 9k,12k 49.2 T otal Pipe Length (ft) Application Guidelines 24.6 98.4 Figure 20: LS090HXV, LS120HXV Heating Coefficient Factor. Heating Capacity (%) 100 95 9k,12k 24.6 49.2 98.4 Total Pipe Length (ft) Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ.
BUILDING VENTILATION DESIGN GUIDE Building Ventilation Design Guide Single Zone Mega Wall Mounted Engineering Manual ASHRAE 62.1 and local codes specify the minimum volume of outdoor air that must be provided to an occupied space. Outdoor air is required to minimize adverse health effects, and it provides acceptable indoor air quality for building occupants. The three methods of accomplishing this with single zone systems are summarized here.
BUILDING VENTILATION DESIGN GUIDE Method 2: Unconditioned Outdoor Air (Non-Ducted, Natural Ventilation) Natural ventilation devices, such as operable windows or louvers may be used to ventilate the building when local code permits. The open area of a window or the free area of a louver must meet the minimum percentage of the net occupied floor area. Refer to Figure 22. Advantages • Occupants control the volume of the ventilation air manually.
PLACEMENT CONSIDERATIONS Selecting the Best Location DANGER To avoid the possibility of fire, do not install the unit in an area where combustible gas may generate, flow, stagnate, or leak. Failure to do so will cause serious bodily injury or death. Single Zone Mega Wall Mounted Engineering Manual • Install a fence to prevent vermin from crawling into the unit or unauthorized individuals from accessing it.
PLACEMENT CONSIDERATIONS Indoor Unit Clearance/Outdoor Unit Installation Indoor Unit Best Location Figure 24: Single Zone Indoor Unit Clearance Requirements. More than 4 inches Follow recommended best practices when choosing an indoor location for the single zone indoor unit. • Use a metal detector to locate studs in the walls. Anchor unit following stud location, to prevent damage to the wall.
PLACEMENT CONSIDERATIONS Outdoor Unit Clearances Minimum Clearance Requirements for Single-Zone Mega 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 the single-zone Art Cool Premier wall mount systems.
REFRIGERANT PIPING DESIGN & LAYOUT BEST PRACTICES “Refrigerant Piping Design” on page 58 "Selecting Field-Supplied Copper Tubing" on page 59 "Refrigerant Piping System Layout" on page 60 "Piping Connection" on page 59 "Electrical Connections" on page 64 "Mechanical Specifications" on page 66 "Acronyms" on page 67
REFRIGERANT PIPING DESIGN Design Guideline Summary/Selecting Field-Supplied Copper Tubing Device Connection Limitations Figure 30: Mega System Layout. Single Zone Mega Wall Mounted Engineering Manual Single-zone systems consist of one outdoor unit and one indoor unit. One of the most critical elements of a single zone system is the refrigerant piping. Table 12 lists pipe length limits that must be followed in the design of a Single Zone Art Cool Premier refrigerant pipe system.
REFRIGERANT PIPING DESIGN Selecting Field-Supplied Copper Tubing Figure 31: Coiled Expansion Loops and Offsets. L L R L R Loop Small Tubing U-bend (<3/4 in.) Refrigerant Piping Design & Layout Best Practices Large Tubing U-bend (>3/4 in.) Table 14: Radii of Coiled Expansion Loops and Developed Lengths of Expansion Offsets. Anticipated Linear Expansion (LE) (inches) 1/2 1 1-1/2 2 2-1/2 3 3-1/2 4 1 R = Centerline Length of Pipe.
INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Obstacles Figure 32: Installing Piping Above and Below an Obstacle Single Zone Mega Wall Mounted Engineering Manual When an obstacle, such as an I-beam or concrete T, is in the path of the planned refrigerant pipe run, it is best practice to route the pipe over the obstacle. If adequate space is not available to route the insulated pipe over the obstacle, then route the pipe under the obstacle.
INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Pipe Sleeves at Penetrations LG requires that all pipe penetrations through walls, floors, and pipes buried underground be properly insulated and routed through an appropriate wall sleeve of sufficient size to prevent compression of refrigerant pipe insulation and free movement of the pipe within the sleeve (Figure 36). Underground refrigerant pipe shall be routed inside a protective sleeve to prevent insulation deterioration.
INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Single Zone Mega Outdoor Unit Connections 1. Remove the tubing cover from the unit by loosening the fastening screws. 2. Align the center of the refrigerant pipe and corresponding connection as shown, and tighten the flare nut initially by hand. 3. Finish tightening the flare nut with a torque wrench until the wrench clicks. Follow the guidelines as outlined in Table 18 for the amount of torque to use.
INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Installation of Refrigerant Piping / Brazing Practices Keep the piping system free of contaminants and debris such as copper burrs, slag, or carbon dust during installation. Refrigerant Piping System Insulation All refrigerant piping, field-provided isolation ball valves, service valves, and elbows shall be completely insulated using closed cell pipe insulation. The liquid and vapor lines must be insulated separately.
ELECTRICAL CONNECTIONS Single Zone Mega Wall Mounted Engineering Manual Outdoor Electrical Connection 1. Remove the control cover from the unit by loosening the fastening screw (Figures 46 to 48). 2. Take off the caps on the conduit panel. 3. Connect both the power supply and low voltage lines to the corresponding terminals on the terminal block (terminals block may be different depending on model). 4. Be sure to ground the unit by following local codes. 5.
ELECTRICAL CONNECTIONS Figure 50: Terminal Block Wiring Diagram LS090HEV1 LS090HEV1 Figure 51: Terminal Block Wiring Diagram LS120HEV1 LS120HEV1 Electrical Connections & Mechanical Specifications 208/230 VA C 208/230 VA C Figure 52: Terminal Block Wiring Diagram LS180HEV1, LS240HEV1 LS180HEV1, LS240HEV1 Figure 53: Terminal Block Wiring Diagram LS090HXV, LS120HXV LSU090HXV, LSU120HXV 1(L1) 2(L2) N N Due to our policy of continuous product innovation, some specifications may change without noti
MECHANICAL SPECIFICATIONS Single Zone Mega and Mega 115V Single Zone Mega Wall Mounted Engineering Manual General LG Single Zone Mega Wall Mounted system comprises of a single outdoor unit connected to a single indoor unit with a single refrigerant circuit. An LG Single Zone Mega Inverter Wall Mounted system is a Duct-Free Split system that can operate in either cooling or heating mode.
ACRONYMS Table 20: Table of Acronyms Acrylonitrile Butadiene Styrene IDU Indoor Unit AC Air Conditioner ISO International Organization for Standardization ACP Advanced Control Platform kW Kilo Watts ASHRAE American Society of Heating, Refrigeration, and Air Conditioning LED Light Emitting Diode AWG American Wire Gauge MBh Thousands BTUs per hour BLDC Brushless Digitally Controlled/Direct MCA Maximum Circuit Ampacity Btu/h British Thermal Units per hour MOP Maximum Overcurrent Prot
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