SINGLE ZONE MEGA AND MEGA 115V WALL MOUNTED ENGINEERING MANUAL 3/4, 1, 1-1/2, and 2 Tons Mega Models: LS090HEV2 LS120HEV2 LS180HEV2 LS240HEV2 3/4 and 1 Tons Mega 115V Models: LS090HXV LS120HXV
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.
TABLE OF CONTENTS Unit Nomenclature...........................................................................................................................................................................................................4 LG Air Conditioner Technical Solution (LATS)..........................................................................................................................................................5-6 Mega and Mega 115V Product Data......................................
UNIT NOMENCLATURE Single Zone Wall Mount Indoor and Outdoor Units LS N 090 HEV Single Zone Mega Wall Mounted Engineering Manual 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 Nominal Capacity (Nominal cooling capacity in Btu/h) 090 = 9,000 120 = 12,000 180 = 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 G
LG AIR CONDITIONER TECHNICAL SOLUTION (LATS) LG Air Conditioner Technical Solution (LATS) Software A properly designed and installed refrigerant piping system is critical to the optimal performance of LG air-conditioning systems. To assist engineers, LG offers, free of charge, LG Air Conditioner Technical Solution (LATS) software—a total design solution for LG air conditioning systems. Contact your LG Rep for the best software program for your application.
LG AIR CONDITIONER TECHNICAL SOLUTION (LATS) LATS Generates a Complete Project Report LATS software also generates a report containing project design parameters, cooling and heating design data, system component performance, and capacity data.
PRODUCT DATA Mechanical Specifications on page 8 General Data on page 9 Electrical Data on page 12 Functions, Controls, Options on page 13 Outdoor Unit Dimensions on page 14 Indoor Unit Dimensions on page 18 Acoustic Data on page 21 Refrigerant Flow Diagrams on page 27 Wiring Diagrams—Indoor Units on page 29 Wiring Diagrams—Outdoor Units on page 31 Electrical Connections on page 34 Air Flow, Static Pressure, and Temperature Distribution on page 38 Accessories on page 47
MECHANICAL SPECIFICATIONS Single Zone Mega and Mega 115V Single Zone Mega Wall Mounted Engineering Manual General LG Single Zone Mega Wall Mounted systems comprise of a single outdoor unit connected to a single indoor unit with a single refrigerant circuit. An LG Single Zone Mega Wall Mounted system is a Duct-Free Split system that can operate in either cooling or heating mode.
GENERAL DATA Mega Pairing Table The following table shows the available outdoor and indoor unit, along with the factory provided controller. Table 1: Single Zone Mega and Mega 115V Pairing Table Outdoor Unit Model Indoor Unit Model Controller LSU090HEV2 LSU120HEV2 LSN090HEV2 LSN120HEV2 AKB74955602 LSU180HEV2 LSU240HEV2 LSN180HEV2 LSN240HEV2 AKB74955602 LSU090HXV LSU120HXV LSN090HXV LSN120HXV AKB73456121 Mega Inverter Product Data Mega 115V 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ
GENERAL DATA 0HJD 6SHFL¿FDWLRQV Table 2: 6LQJOH =RQH 0HJD 6\VWHP 6SHFL¿FDWLRQV Single Zone Mega Wall Mounted Engineering Manual System Model Number (IDU/ODU) LS090HEV2 (LSN090HEV2/ LSU090HEV2) LS120HEV2 (LSN120HEV2/ LSU120HEV2) LS180HEV2 (LSN180HEV2/ LSU180HEV2) LS240HEV2 (LSN240HEV2/ LSU240HEV2) 3,070 ~ 9,000 ~10,330 3,070 ~ 12,000 ~ 13,780 3,685 ~ 18,000 ~ 18,493 3,685 ~ 22,000 ~ 24,000 Cooling Capacity (Min/Rated/Max) (Btu/h) 0.72 1.142 1.5 2.
GENERAL DATA 0HJD 9 6SHFL¿FDWLRQV Table 3: 6LQJOH =RQH 0HJD 9 6\VWHP 6SHFL¿FDWLRQV LS090HXV (LSN090HXV/LSU090HXV) LS120HXV (LSN120HXV/LSU120HXV) 1,023 ~ 8,500 ~ 13,785 0.71 1,023 ~ 10,900 ~ 22,178 0.88 3.63 12.01 17.0 9.0 1,023 ~ 12,000 ~ 13,785 1.14 1,023 ~ 13,000 ~ 22,178 1.09 3.50 10.5 17.0 9.0 EEV: Electronic Expansion Valve IDU: Indoor Unit ODU: Outdoor Unit This unit comes with a dry helium charge. This data is rated 0 ft above sea level with 24.
ELECTRICAL DATA 0HJD DQG 0HJD 9 2XWGRRU 8QLWV Electrical Data Table 4: 208-230V, 60Hz, 1-Phase Single-Zone Mega System Electrical Data Table. Single Zone Mega Wall Mounted Engineering Manual Nominal Unit Model Hertz Voltage Voltage Range MCA Tons No. (Min. to Max.) 3/4 LS090HEV2 1 LS120HEV2 1-1/2 LS180HEV2 2 LS240HEV2 60 208 - 230 187-253 MOP Compressor Quantity Compressor Motor Outdoor Fan Motor Indoor Fan Motor RLA Cooling Heating W FLA W FLA 10.0 15 1 7.0 7.0 43 0.4 30 0.4 10.
FUNCTIONS, CONTROLS, OPTIONS Table 6: Indoor Units—Functions, Controls and Options.
Ø16-1/4 (413) 28-7/32 (717) 18-7/32 (463) Drain Hole 2-Ø13/16 (20) Air Outlet 10-1/2 (267) 3-1/2 (89) 3/16 (5) Unit: Inch (mm) Control Box 2-9/16 (65) 9-27/32 (250) 10-5/8 (270) 19-1/2 (495) PRODUCT DATA 9/16 (14) | 5 (127) 1-1/4 (31) 9-1/16 (230) 2-13/16 (71) 21° Liquid Pipe Connection (Flare) Vapor Pipe Connection (Flare) 5/8 (16) 2-7/32 (56) Service Valve Cover Power and Communication Cable Access Hole 5-3/32 (129) 14 9-1/4 (235) Single Zone Mega Wall Mounted Engineering Manual
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OUTDOOR UNIT CORNER WEIGHT AND CENTER OF GRAVITY DIMENSIONS Figure 3: LSU090-120-180-240HEV2 Outdoor Unit Corner Weight and Center of Gravity Dimensions. d A D Single Zone Mega Wall Mounted Engineering Manual e c C B b a Table 7: LSU090-120-180-240HEV2 Outdoor Unit Corner Weight and Center of Gravity Dimensions. Model No. 16 Weight (lb.) Shipping Center of Gravity (Inch) Net a b c Leg (Inch) d e Corner Weight (lb.) A B C D LSU090HEV2, LSU120HEV2 60.0 55.
OUTDOOR UNIT DIMENSIONS LSU090HXV, LSU120HXV 28-1/4 10 -1/16 9-1/16 10-11/16 18-1/4 . Discharge Air Grille Gas Pipe Connection Port Liquid Pipe Connection Port 2-1/4 Control Box Ground Terminal 28-1/4 10-9/16 Product Data /8 7-3 Ø1 4 2-3/16 7/16 2 5 2-1/4 9-5/16 19-1/2 1 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/* ´ LV D UHJLVWHUHG WUDGHPDUN RI /* &RUS
2-7/32 (56) 5-31/32 (152) 1/8(3) x 1/4(6) 1/4(6) x 1/8(3) 2-7/16 (61.5) 1-1/4 (31) 1-3/32 (50.2) 1-1/16 (26.2) 2 (51) 2 1-9/32(32.7) Knock-Out Refrigerant, Drain Pipe and Cable Routing Hole 2-13/32(61) 1-7/16(33.5) Decoration Cover 28-5/32 (715) Air Outlet Hole 32-15/16 (837) [30-3/16 (767)] Air Intake Hole 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/* ´ LV D
'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/* ´ LV D UHJLVWHUHG WUDGHPDUN RI /* &RUS 1/8(3) x 1/4(6) 1/4(6) x 1/8(3) 2-7/16 (61.5) 1-1/4 (31) 1-3/32 (50.2) 1-1/16 (26.2) 2-3/8 (60) 5-31/32 (152) 2-3/8 (60) 1-7/16(33.
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 2-5/16 4 Return Air Grille 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 20 | PRODUCT DATA 5 3-3/4 8-9/16 Right rear piping Unit: Inch 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQ
ACOUSTIC DATA 0HJD DQG 0HJD 9 ,QGRRU 8QLWV Indoor Unit Sound Pressure Measurement / Sound Pressure Levels • Measurements are taken 3.3 ft away from the front of the unit. • Sound pressure levels are measured in dB(A) with a tolerance of ±1. • Data is valid at nominal operation conditions. Operating conditions are assumed to be standard.
ACOUSTIC DATA 0HJD DQG 0HJD 9 ,QGRRU 8QLWV LSN120HEV2 and LSN180HEV2 Sound Pressure Levels Figure 6: Sound Pressure Levels for Mega LSN120HEV2 Indoor Units.
ACOUSTIC DATA 0HJD DQG 0HJD 9 ,QGRRU 8QLWV LSN240HEV2 Sound Pressure Levels Figure 8: Sound Pressure Levels for Mega LSN180HEV2 Indoor Units.
ACOUSTIC DATA 0HJD DQG 0HJD 9 2XWGRRU 8QLWV Outdoor Unit Sound Pressure Measurement / Sound Pressure Levels Figure 10: Outdoor Unit Sound Levels • Measurements are taken 3.3 ft away from the front of the unit. • Sound pressure levels are measured in dB(A) with a tolerance of ±1. • Data is valid at nominal operation conditions. Operating conditions are assumed to be standard.
ACOUSTIC DATA 0HJD DQG 0HJD 9 2XWGRRU 8QLWV LSU120HEV2 and LSU180HEV2 Sound Pressure Levels Figure 12: Sound Pressure Levels for Mega LSU120HEV2 Outdoor Units.
ACOUSTIC DATA 0HJD DQG 0HJD 9 2XWGRRU 8QLWV LSU240HEV2 Sound Pressure Levels Figure 14: Sound Pressure Levels for Mega LSU240HEV2 Outdoor Units.
REFRIGERANT FLOW DIAGRAMS Mega LSN / LSU090, 120, 180, 240HEV2 Refrigerant Flow Diagram for Mega LSN / LSU090, 120, 180, 240HEV2 Indoor Unit Outdoor Unit Field Pipin g (Copper Tubing) Flare Joint Liquid Side 2-Way Valve Strainer M TH1 Strainer EEV (Electronic Expansion Valve) TH4 Propeller Fan M Heat Exchanger (Evaporator) Heat Exchanger (Condenser) TH2 3-Way Valve Cross Flow Fan TH3 Reversing Valve (4-Way Valve) Field Pipin g (Copper Tubing) Product Data Flare Joint TH5 Vapor Side TH6
REFRIGERANT FLOW DIAGRAMS Mega 115V LSN / LSU090, 120HXV Refrigerant Flow Diagram for Mega 115 LSN / LSU090, 120HXV Indoor Unit Outdoor Unit Single Zone Mega Wall Mounted Engineering Manual FIELD PIPING Liquid Side (Ø1/4" Copper Tubing) EEV 2-Way Valve TH1 TH2 Heat Exchanger (Evaporator ) Heat Exchanger (Condenser) TH5 TH4 Vapor Side FIELD PIPING 3-Way Valve (Ø3/8" Copper Tubing) Reversing Valve Accumulator TH3 Compressor Table 12: Mega 115 LSN/LSU090-120HXV Thermistor Details.
INDOOR UNIT WIRING DIAGRAM Mega LSN090, 120, 180, 240HEV2 Wiring Diagram for LSN090, 120, 180, 240HEV2 Factory Wiring Field Wiring Option Product Data MEZ64135636 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/* ´ LV D UHJLVWHUHG WUDGHPDUN RI /* &RUS PRODUCT DATA | 29
INDOOR UNIT WIRING DIAGRAM Mega 115V LSN090HXV and LSN120HXV Single Zone Mega Wall Mounted Engineering Manual Wiring Diagram for LSN090, 120HXV 30 | PRODUCT DATA 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/* ´ LV D UHJLVWHUHG WUDGHPDUN RI /* &RUS
OUTDOOR UNIT WIRING DIAGRAM Mega LSU090, 120HEV2 Wiring Diagram for LSU090, 120HEV2 Factory Wiring Field Wiring Option Product Data MEZ64835136 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/* ´ LV D UHJLVWHUHG WUDGHPDUN RI /* &RUS PRODUCT DATA | 31
OUTDOOR UNIT WIRING DIAGRAM Mega LSU180, 240HEV2 Wiring Diagram for LSU180, 240HEV2 Factory Wiring Single Zone Mega Wall Mounted Engineering Manual Field Wiring Option MEZ66177431 32 | PRODUCT DATA 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/* ´ LV D UHJLVWHUHG WUDGHPDUN RI /* &RUS
OUTDOOR UNIT WIRING DIAGRAM Mega 115V LSU090, 120HXV Wiring Diagram for LSU090, 120HXV 250V 250V 250V Product Data 'XH WR RXU SROLF\ RI FRQWLQXRXV SURGXFW LQQRYDWLRQ VRPH VSHFL¿FDWLRQV PD\ FKDQJH ZLWKRXW QRWL¿FDWLRQ © /* (OHFWURQLFV 8 6 $ ,QF (QJOHZRRG &OLIIV 1- $OO ULJKWV UHVHUYHG ³/* ´ LV D UHJLVWHUHG WUDGHPDUN RI /* &RUS PRODUCT DATA | 33
ELECTRICAL CONNECTIONS Single Zone Mega Wall Mounted Engineering Manual General Power Wiring / Communications Cable Guidelines • • • • • • • • Follow manufacturer’s circuit diagrams displayed on the inside of the control box cover. Have a separate power supply for the indoor units. Provide a circuit breaker switch between the power source and the indoor unit. Confirm power source specifications. Properly ground the outdoor unit and the indoor unit per National Electrical Code (NEC) and local codes.
ELECTRICAL CONNECTIONS Figure 16: LS090HEV2 and LS120HEV2 General Power / Communications System Schematic. Figure 17: LS180HEV2 and LS240HEV2 General Power / Communications System Schematic. Power Supply Power Supply Circuit Breaker Circuit Breaker Indoor Unit Ground Wiring Indoor Unit Ground Wiring Outdoor Unit Outdoor Unit Power Supply Product Data Figure 18: LS090HXV and LS120HXV General Power / Communications System Schematic. Figure 19: Terminal Block Wiring Diagram LS090-120HEV2.
ELECTRICAL CONNECTIONS Figure 20: Terminal Block Wiring Diagram LS180HEV2, LS240HEV2. LS180HEV2, LS240HEV2 Figure 21: Terminal Block Wiring Diagram LS090HXV, LS120HXV LSU090HXV, LSU120HXV Single Zone Mega Wall Mounted Engineering Manual L N N 115 VAC N • Use a conduit for the communications cable / power wiring from the outdoor unit to the indoor units.
ELECTRICAL CONNECTIONS Figure 24: PZCWRC1 LG Wired Remote Extension Cable for Use with the Mega 115V. Verify the connectors are properly inserted. C/BOX Cable (Plug type) FAN SPEED TEMP OPER MODE Extension cable Figure 25: Wired Controller Connection on the Mega 115V Indoor Unit Terminal Block. 3 :KHQ XVLQJ ¿HOG VXSSOLHG FRQWUROOHU FDEOH PDNH VXUH WR FRQQHFW WKH \HOORZ WR \HOORZ (communications wire), red to red (12V power wire), and black to black (ground wire) terminals from the remote controller
AIR FLOW, STATIC PRESSURE, AND TEMPERATURE DISTRIBUTION Table 14: Mega and Mega 115V Outdoor Unit Air Flow Rate and Static Pressure. Model No. Air Flow Rate (CFM) Static Pressure (in. WG) LSU090HEV2, LSU120HEV2 LSU180HEV2, LSU240HEV2 953 1,730 0.0284 0.0387 LSU090HXV, LSU120HXV 953 0.0384 LSN090HEV2 Single Zone Mega Wall Mounted Engineering Manual Cooling THPSHUDWXUH >Û& Û) @ Air Velocity [m/s (ft./s)] 2(6.6) 0.3(1) 0.5(1.6) 1(3.3) m 2 ft. 6.6 1 3.3 0 0 m ft. 6.
AIR FLOW AND TEMPERATURE DISTRIBUTION LSN090HEV2, continued. Heating Air Velocity [m/s (ft./s)] THPSHUDWXUH > 2(6.6) 0.3(1) 0.5(1.6) 1(3.3) m 2 ft. 6.6 1 3.3 0 0 ( )] m ft. 6.6 28(82) 2 26(79) 22(72) 24(75) m 10 8 6 4 2 0 m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 ft. 32.8 26.2 19.7 13.1 6.6 0 1 3.3 0 0 Side View Discharge $QJOH Û )URP WKH IORRU Vertical Louver : Center )DQ 6SHHG 3RZHU ) Air Velocity [m/s (ft./s)] m ft. 5 16.4 0.3(1) m ft. 5 16.
AIR FLOW AND TEMPERATURE DISTRIBUTION LSN120HEV2 Cooling THPSHUDWXUH >Û& Û) @ Air Velocity [m/s (ft./s)] Single Zone Mega Wall Mounted Engineering Manual 0.5(1.6) ft. 6.6 1 3.3 m 24(75) 2(6.6) 0.3(1) m 2 1(3.3) 0 0 22(72) 2 ft. 6.6 1 3.3 0 0 26(79) 28(82) m 10 8 6 4 2 0 m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 ft. 32.8 26.2 19.7 13.1 6.
AIR FLOW AND TEMPERATURE DISTRIBUTION LSN120HEV2, continued. Heating Air VHORFLW\ >P V IW V @ Temperature [Û& Û) @ m 2 IW 1 0 0 m 2 IW 1 0 0 m 10 8 6 4 2 IW 8 2 1 6 6 0 m 10 8 0 IW 8 26 2 6 4 2 0 1 6 6 0 Side View Discharge $QJOH Û )URP WKH IORRU VHUWLFDO /RXYHU &HQWHU )DQ 6SHHG 3RZHU Air VHORFLW\ >P V IW V @ m IW m IW 4 1
AIR FLOW AND TEMPERATURE DISTRIBUTION LSN180HEV2 Cooling Air Velocity [m/s (ft./s)] Temperature [ഒ (ഘ)] Single Zone Mega Wall Mounted Engineering Manual 2(6.6) 0.3(1) 0.5(1.6) m 2 ft. 6.6 1 3.3 0 0 24(75) 28(82) 22(72) 20(68) 26(79) 1(3.3) m 10 8 6 4 2 0 m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 ft. 32.8 26.2 19.7 13.1 6.6 0 m 2 ft. 6.6 1 3.
AIR FLOW AND TEMPERATURE DISTRIBUTION LSN180HEV2, continued. Heating Air Velocity [m/s (ft./s)] 0.3(1) 0.5(1.6) THPSHUDWXUH >ഒ (ഘ)] 2(6.6) 1(3.3) 1.5(4.9) m 2 ft. 6.6 1 3.3 0 0 m 24(75) 32(90) 2 ft. 6.6 1 3.3 0 0 28(82) 26(79) m 10 8 6 4 2 0 m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 ft. 32.8 26.2 19.7 13.1 6.6 0 Side View Discharge $QJOH Û )URP WKH IORRU Vertical Louver : Center )DQ 6SHHG 3RZHU ) Air Velocity [m/s (ft./s)] m ft. 5 16.4 m ft.
AIR FLOW AND TEMPERATURE DISTRIBUTION LSN240HEV2 Cooling THPSHUDWXUH >Û& Û) @ Air Velocity [m/s (ft./s)] Single Zone Mega Wall Mounted Engineering Manual 2(6.6) 0.3(1) 0.5(1.6) 1.5(4.9) m 2 ft. 6.6 1 3.3 m 28(82) 22(72) 18(64) 2 ft. 6.6 1 3.3 0 0 24(75) 26(79) 1(3.3) 0 0 m 10 8 6 4 2 0 m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 ft. 32.8 26.2 19.7 13.1 6.
AIR FLOW AND TEMPERATURE DISTRIBUTION LSN240HEV2, continued. Heating Air Velocity [m/s (ft./s)] 0.3(1) 0.5(1.6) THPSHUDWXUH >ഒ (ഘ)] 1(3.3) 1.5(4.9) 2(6.6) m 2 ft. 6.6 1 3.3 0 0 m 24(75) ft. 6.6 32(90) 2 30(86) 28(82) 26(79) m 10 8 6 4 2 0 m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 ft. 32.8 26.2 19.7 13.1 6.6 0 1 3.3 0 0 Side View Discharge $QJOH Û )URP WKH IORRU Vertical Louver : Center )DQ 6SHHG 3RZHU ) Air Velocity [m/s (ft./s)] m ft. 5 16.
AIR FLOW AND TEMPERATURE DISTRIBUTION LSN090HXV Cooling Heating Discharge angle: 45° Discharge angle: 50° Air velocity [ft/s] Air velocity [ft/s] 6.6ft Single Zone Mega Wall Mounted Engineering Manual 9.8 1 .5 11 5 11. 9.8 8.2 3.3ft 26.2ft 23.0ft 19.7ft 6.6 4.9 3.3 16.4ft 13.1ft 3.3ft 8.2 6.6 6.6ft 13. 0ft 9.8ft 6.6ft 3.3ft 26.2ft 0ft Temperature [°F] 4.9 3.3 23.0ft 19.7ft 16.4ft 13.1ft 9.8ft 0ft 6.6ft 3.3ft 0ft Temperature [°F] 6.6ft 6.6ft 98.6 91.4 66.2 87.
ACCESSORIES LG Monitoring View (LGMV) Diagnostic Software and Cable Additional screens can be accessed by tabs on the main screen: 1.
ACCESSORIES LG Smart Inverter Monitoring System (SIMS) Single Zone Mega Wall Mounted Engineering Manual SIMS can be used to display and graph operational data for single zone systems and respective components (indoor unit and outdoor unit). SIMS also displays error codes and a troubleshooting guide. SIMs consists of a hardware Wireless Local Area Network (WLAN) module, an interface cable, and a free downloadable application (app) for iOS® or Android™.
PERFORMANCE DATA Cooling Capacity Data on page 50 Heating Capacity Data on page 53 Maximum Heating Capacity Data on page 55 Equipment Selection Procedure on page 57
PERFORMANCE DATA &RROLQJ &DSDFLW\ LS090HEV2, LS120HEV2 Cooling Capacity Table for LS090HEV2 (LSU090HEV2 + LSN090HEV2) Table 15: LSN090HEV2 / LSU120HEV2 Cooling Capacities. Single Zone Mega Wall Mounted Engineering Manual Outdoor Air 64 / 53 Temp. TC SHC (°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 5.51 5.92 6.01 6.24 6.47 6.70 6.94 7.17 7.40 7.63 7.56 7.49 7.43 7.36 7.29 7.22 7.15 6.96 6.77 6.59 6.35 6.21 6.02 4.90 5.26 5.34 5.55 5.75 5.96 6.17 6.37 6.58 6.79 6.
PERFORMANCE DATA &RROLQJ &DSDFLW\ LS180HEV2, LS240HEV2 Cooling Capacity Table for LS180HEV2 (LSU180HEV2 + LSN180HEV2) Table 17: LSN0180HEV2 / LSU180HEV2 Cooling Capacities. Outdoor Air 64 / 53 Temp. TC SHC (°F DB) 11.02 11.83 12.02 12.48 12.95 13.41 13.87 14.34 14.80 15.27 15.13 14.99 14.85 14.71 14.57 14.43 14.29 13.92 13.55 13.17 12.70 12.42 12.05 8.76 9.40 9.55 9.92 10.29 10.66 11.03 11.40 11.77 12.13 12.02 11.92 11.81 11.70 11.59 11.48 11.37 11.07 10.77 10.47 10.10 9.87 10.07 0.64 0.63 0.65 0.70 0.
PERFORMANCE DATA &RROLQJ &DSDFLW\ LS090HXV, LS120HXV Cooling Capacity Table for LS090HXV (LSU090HXV + LSN090HXV) Table 19: 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 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 4.58 4.92 4.99 5.18 5.37 5.57 5.76 5.96 6.15 6.34 6.54 6.73 6.
PERFORMANCE DATA +HDWLQJ &DSDFLW\ LS090HEV2, LS120HEV2, LS180HEV2 Heating Capacity Table for LS090HEV2 (LSU090HEV2 + LSN090HEV2) Table 21: LSN090HEV2 / LSU090HEV2 Heating Capacities. Outdoor Air Temp. °F DB °F WB 16 17 19 24 32 41 43 47 53 59 64 70 75 14 15 17 23 30 38 40 43 50 53 57 61 65 Indoor Air Temperature (°F DB) TC 60 6.90 6.94 7.04 7.72 9.25 10.62 10.96 11.47 11.58 11.85 12.10 12.33 12.50 PI TC 0.70 0.71 0.72 0.75 0.81 0.86 0.87 0.89 0.90 0.91 0.93 0.94 0.95 6.69 6.73 6.82 7.49 8.97 10.
PERFORMANCE DATA +HDWLQJ &DSDFLW\ LS240HEV2, LS090HXV, LS120HXV Heating Capacity Table for LS240HEV2 (LSU240HEV2 + LSN240HEV2) Table 24: LSN240HEV2 / LSU240HEV2 Heating Capacities. Outdoor Air Temp. Single Zone Mega Wall Mounted Engineering Manual °F DB °F WB 16 17 19 24 32 41 43 47 53 59 64 70 75 14 15 17 23 30 38 40 43 50 53 57 61 65 Indoor Air Temperature (°F DB) TC 60 13.92 14.02 14.21 15.58 18.68 21.43 22.12 23.15 23.38 23.91 24.42 24.89 25.23 PI TC 1.54 1.56 1.59 1.65 1.78 1.90 1.92 1.97 1.
PERFORMANCE DATA 0D[LPXP +HDWLQJ &DSDFLW\ LS090HEV2, LS120HEV2 Maximum Heating Capacity Table for LS090HEV2 (LSU090HEV2 + LSN090HEV2) Table 27: LSN090HEV2 / LSU090HEV2 Heating Capacities. Outdoor Air Temp. °F DB °F WB 16 17 19 24 32 41 43 47 53 59 64 70 75 14 15 17 23 30 38 40 43 50 53 57 61 65 Indoor Air Temperature (°F DB) TC 60 8.37 8.68 9.17 10.07 10.97 11.84 12.20 12.93 12.74 12.59 12.81 12.86 13.05 PI TC 1.15 1.16 1.16 1.17 1.13 1.05 1.01 0.97 0.94 0.92 0.90 0.85 0.77 8.25 8.56 9.05 9.93 10.
PERFORMANCE DATA 0D[LPXP +HDWLQJ &DSDFLW\ LS180HEV2, LS240HEV2 Maximum Heating Capacity Table for LS180HEV2 (LSU180HEV2 + LSN180HEV2) Table 29: LSN180HEV2 / LSU180HEV2 Heating Capacities. Outdoor Air Temp. Single Zone Mega Wall Mounted Engineering Manual °F DB °F WB 16 17 19 24 32 41 43 47 53 59 64 70 75 14 15 17 23 30 38 40 43 50 53 57 61 65 Indoor Air Temperature (°F DB) TC 60 14.59 15.14 15.99 17.55 19.13 20.64 21.26 22.54 22.21 21.95 22.34 22.42 22.74 PI TC 2.08 2.10 2.11 2.12 2.05 1.91 1.82 1.
EQUIPMENT SELECTION PROCEDURE &RUUHFWLRQ )DFWRUV Cooling / Heating Correction Factors For Single Zone Mega Wall Mounted systems, 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 below.
EQUIPMENT SELECTION PROCEDURE &RUUHFWLRQ )DFWRUV Defrost Correction Factor for Heating Operation Single Zone Mega Wall Mounted Engineering Manual The outdoor unit heating capacity may need to be adjusted for frost accumulation on air-cooled systems. If design day conditions are below the dewpoint of the surrounding air, frost may not be a problem and no correction factor is needed.
APPLICATION GUIDELINES Placement Considerations on page 60 Installing Outdoor Units Indoors on page 65 Design Guideline Summary on page 68
PLACEMENT CONSIDERATIONS ,QGRRU 8QLW Selecting the Best Location for the Indoor Unit Follow recommended best practices when choosing an indoor location for the single zone indoor unit. Figure 28: Mega Indoor Unit Clearance Requirements. Unit: Inch (mm) Single Zone Mega Wall Mounted Engineering Manual Dos • Follow the table at right for minimum clearance of indoor unit from the top of the unit to the ceiling.
PLACEMENT CONSIDERATIONS 2XWGRRU 8QLW 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. • Do not install the unit in a location where acidic solution and spray (sulfur) are often used as it can cause bodily injury or death.
PLACEMENT CONSIDERATIONS 2XWGRRU 8QLW Planning for Snow and Ice, continued. When deciding on a location to place the outdoor unit, be sure to choose an area where run-off from defrost will not accumulate and freeze on sidewalks or driveways, which will create unsafe conditions. Properly install and insulate any drain hoses to prevent the hose from freezing, cracking, leaking, and causing unsafe conditions from frozen condensate.
PLACEMENT CONSIDERATIONS 2XWGRRU 8QLW Oceanside Applications Figure 32: Oceanside Placement Using Windbreak. Use of a Windbreak to Shield from Sea Wind Windbreak Ocean winds will cause corrosion, particularly on the condenser and HYDSRUDWRU ¿QV ZKLFK LQ WXUQ FRXOG FDXVH SURGXFW PDOIXQFWLRQ RU LQHI¿FLHQW SHUIRUPDQFH • • • • • Sea wind Additional anti-corrosion treatment will need to be applied to the outdoor unit at oceanside locations. Figure 33: Placement Using Building as Shield.
PLACEMENT CONSIDERATIONS 2XWGRRU 8QLW Minimum Allowable Clearance and Service Access Requirements Single Zone Mega Wall Mounted Engineering Manual Proper clearance for the outdoor unit coil is critical for proper operation. When installing the outdoor unit, consider service, inlet and outlet, and minimum allowable space requirements as illustrated in the diagrams below. • Include enough space for airflow and for service access.
PLACEMENT CONSIDERATIONS ,QVWDOOLQJ 2XWGRRU 8QLWV ,QGRRUV Installing Outdoor Units Indoors Single Zone Mega and Mega 115V Wall Mount 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: • Lack of ground space. • Lack of an appropriate outdoor location that meets system design requirements.
PLACEMENT CONSIDERATIONS ,QVWDOOLQJ 2XWGRRU 8QLWV ,QGRRUV 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.
PLACEMENT CONSIDERATIONS ,QVWDOOLQJ 2XWGRRU 8QLWV ,QGRRUV Open Rate by Louver Radian Figure 37: Open Rate by Louver Radian Formula. W h ho H Application Guidelines 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 Side View Effective Cross Section Area Front View Confirming Air Flow Rate / Total Opening Rate Figure 38: Example of Installing Outdoor Unit Indoors. • Example: LSU180HSV5.
REFRIGERANT PIPING DESIGN 'HVLJQ *XLGHOLQH 6XPPDU\ Device Connection Limitations Figure 39: Mega and Mega 115V System Layout. 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. The table below lists pipe length limits that must be followed in the design of a Single Zone Mega or Mega 115V refrigerant pipe system. Refer to the figure at right for maximum length and elevation of piping.
20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics, U.S.A., Inc. Commercial Air Conditioning Division 4300 North Point Parkway Alpharetta, Georgia 30022 www.lghvac.
