SiNGle ZoNe MeGa inverter Wall MouNteD engineering MaNual

Transcription

1 SiNGle ZoNe MeGa inverter Wall MouNteD engineering MaNual Single Zone Mega Inverter Wall Mounted 3/4 ton, 1 ton, 1 1/2 ton, and 2 ton

2 Proprietary Data Notice This document, as well as all reports, illustrations, data, information, and other materials is 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. EM-SZ_Mega_Mega115V For continual product development, LG Electronics U.S.A., Inc., reserves the right to change specifications without notice. LG Electronics U.S.A., Inc.

3 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. LG s commercial air conditioning business unit was established in 1968 and has built its lineup of residential and commercial products to include VrF, multi-zone, duct-free split systems, packaged terminal air conditioners (PtAcs), and room air conditioners. In 2011, the air conditioning and energy solutions business unit grew to include LEd lighting and solar products. For more information, visit Duct-free Split (DfS) Systems LG HVAc systems offer a range of solutions that are cost efficient, quiet and attractive. duct-free Split (dfs) systems are split into indoor and outdoor units, and provide a smart alternative to both central HVAc and window-mounted air conditioners. these inverter heat pump systems are available in a variety of configurations to suit different cooling and heating situations. Installation by a qualified HVAc contractor is safe and easy little to no duct work or sheet metal is required. inverter Systems LG Single Zone Mega Inverter Wall Mounted air-source systems offer the opportunity to minimize ductwork in the same configuration. the system offers zoning without the need for zone damper systems. the LG Single Zone Mega Inverter Wall Mount system s advanced controls provide exceptional building dehumidification and temperature control, and can rapidly adapt system operating parameters to the ever changing building load. the LG Single Zone Mega Inverter Wall Mounted system is easy to design, install, and maintain. the modular design allows occupants to control their environmental condition, providing individualized control of the set-point temperature and allowing occupants to condition only the occupied zones. Quality commitment LG is committed to the success of dfs projects. We provide industry leading technical support during installation and commissioning. LG offers a variety of classes designed for installers and servicers to ensure that every dfs system installation is completed successfully. classes are conducted at LG s training centers and in field locations at various times throughout the year and upon special request. introduction Due to our policy of continuous product innovation, some specifi cations may change without notifi cation. 3

4 Table of Contents Single Zone Mega Inverter Wall Mounted Engineering Manual Architectural Appeal... 6 Product Features and Benefits... 8 Unit Nomenclature... 9 General Data Single Zone Mega Inverter Pairing Table Single Zone Mega 115V Inverter Specifications Electrical Data Single Zone Mega Inverter Outdoor Units Outdoor Unit Dimensions LSU090HEV, LSU120HEV LSU180HEV LSU240HEV LSU090HXV, LSU120HXV Indoor Unit Dimensions LSN090HEV LSN120HEV LSN180HEV, LSN240HEV LSN090HXV, LSN120HXV Acoustic Data Single Zone Mega Inverter Outdoor Units Single Zone Mega 115V Inverter Outdoor Units Single Zone Mega Inverter Indoor Units Single Zone Mega 115V Inverter Indoor Units Refrigerant Flow Diagrams LSN090HEV/LSU090HEV LSN120HEV/LSU120HEV LSN180HEV/LSU180HEV LSN240HEV/LSU240HEV LSN090HXV/LSU090HXV LSN120HXV/LSU120HXV Wiring Diagram LSU090HEV, LSU120HEV LSU180HEV LSU240HEV LSU090HXV, LSU120HXV LSN090HEV, LSN120HEV LSN180HEV, LSN240HEV LSN090HXV, LSN120HXV Accessories Performance Data Cooling Capacity Heating Capacity Equipment Selection Procedure LS090HEV/LS120HEV LS180HEV/LS240HEV LS090HXV/LS120HXV Building Ventilation Design Guide Placement Considerations Single Zone Mega Inverter Wall Mounted Outdoor Installation Refrigerant Piping Design Design Guideline Summary Selecting Field-Supplied Copper Tubing Installation & Layout Best Practices Refrigerant Piping System Layout Piping Connection Electrical Connections Mechanical Specifications Acronyms Table of Symbols This symbol indicates a potentially hazardous situation which, if not avoided, may result in death or serious injury. This symbol indicates additional helpful information such as an explanation, a comment, or a clarification about the subject. This symbol indicates a recommendation or tip. Recommendations instruct the user to apply the suggested practice to ensure the best operating results in order to achieve the maximum benefit of the product. Tips contain practical information that may help the user solve a problem or describe actions that may save time. 4

5 Introduction Architectural Appeal on page 6

6 Architectural Appeal Convergence of Technological Innovation with Flexibility and Style Single Zone Mega Inverter Wall Mounted Engineering Manual Benefits of Single Zone Mega Inverter Wall Mounted Inverter technology Available in 9,000, 12,000 (HEV and HXV), 18,000 and 24,000 (HEV only) Btu/h capacities All-season use - heat pump models for both cooling and heating capabilities Operating ranges for Outdoor units (HEV) of 64 F to 118 F (DB) for cooling; 23 F to 65 F (WB) for heating Operating ranges for Outdoor units (HXV) of 14 F to 118 F (DB) for cooling; 14 F to 65 F (WB) for heating Operating ranges for all model Indoor Units of 53 F to 75 F (WB) for cooling; 60 F to 86 F (DB) for heating Quiet operation inside and outside Duct-Free Split system Single Zone Mega Inverter Wall Mounted Choosing an LG Single Zone Mega Inverter Wall Mounted product provides a system designer an edge to engineer a system with individual control, and design flexibility with advanced controls. The Single Zone Mega Inverter Wall Mounted Outdoor and Indoor units are available in a nominal capacity range of 3/4 to 2 tons. These are best suited for applications with zones that require heating or cooling, such as residential, and small business office buildings. Single Zone Mega Inverter Wall Mounted Outdoor and Indoor units are available in V/60Hz/1Ph, as well as, 115V/60Hz/1Ph. Adaptable and Flexible The Single Zone Mega Inverter Wall Mounted DFS System allows cooling or heating for the entire residence or just a single room without the need for evasive ductwork. There is no tearing down of walls or altering the homes appearance. Long refrigerant piping lengths allow for extra design flexibility in indoor unit installation. These units may be used for a number of residential or commercial environments such as: Older homes New home construction Office buildings Restaurants Hospitals / Medical facilities Schools Nursing homes Retail establishments Houses of worship Inverter Technology Inverter variable-speed DFS Systems are measurably quieter and consume less energy than conventional air conditioners. The Inverter compressor ramps up or down to match the required room capacity and maintain the comfort level. When the selected temperature is reached, the inverter compressor operates at low speed to maintain that comfort level, thereby using less energy. 6 Introduction

7 Product data Product Features and Benefits on page 8 Unit Nomenclature on page 9 General Data on page 10 Electrical Data on page 17 Outdoor Unit Dimensions on page 18 Indoor Unit Dimensions on page 22 Acoustic Data on page 26 Refrigerant Flow Diagrams on page 30 Wiring Diagrams Outdoor Units on page 34 Wiring Diagrams Indoor Units on page 38 Accessories - LG Monitoring View Diagnostic Software on page 40

8 Product Features and Benefits Single Zone Mega Inverter Wall Mounted Engineering Manual Single Zone Mega Inverter Wall Mounted Single Zone Mega Inverter Wall Mounted units are equipped with inverter components that offer superior load matching and long piping installation. The product works 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. Single Zone Mega Inverter Wall Mounted allows flexibility in interior design and complements any decor. Low Sound Levels When outdoor units operate fully loaded, they have one of the quietest sound levels in the industry. Sound is almost undetectable during off-peak operation. To promote a quiet, comfortable environment, the LG Single Zone Mega Inverter Wall Mounted indoor units operate at sound levels as low as 23 db(a) (HXV units) and outdoor units as low as 47 db(a) at full load. LG customers often ask if the outdoor unit is running after commissioning is complete. All rotating components are soft-started by the controller using digitally controlled inverters, which reduce undesirable noise caused by fans and compressors cycling on and off. Comfort Control at Its Best Tight temperature control through precise load matching maximizes the time that the indoor units remove moisture. Unlike traditional air conditioning control systems, which use thermostatic controls to maintain room temperatures, LG Single Zone Mega Inverter controls continuously adjust the indoor unit fan speed and refrigerant flow, indirectly providing lower and more consistent humidity levels in the conditioned space. The longer the indoor coil temperature is below the dew-point of the room in conjunction with air movement across the coil, the space humidity level will vary little, compared to technologies that cycle fans and compressors on and off multiple times per hour. The outdoor unit responds by varying the compressor speed and outdoor fan motors as needed to maintain system operating pressure. As a result, the Single Zone Mega Inverter Wall Mount system delivers precise space temperature control. Inverter Driven The rotary (9k/12k Btu/h systems) and twinrotary (18k/24k Btu/h systems) compressor is optimized to maximize compressor efficiency, which reduces power consumption and monthly utility bills. This latest inverter technology allows the LG Single Zone Mega Inverter Wall Mounted outdoor unit to vary the compressor motor shaft speed to deliver an appropriate amount of cooling to the indoor unit. Precise refrigerant volume delivery translates into long periods with coil surface temperatures below dew point and minimizes compressor and fan component run time. Occupants remain comfortable while utility costs are reduced. Simplified Installation Cooling and heating applications that use the LG Single Zone Mega Inverter Wall Mounted product simplify and reduce the mechanical and control system design time. The designer no longer has to be concerned with interconnecting chilled and condenser water piping, air-distribution duct systems, matching and selecting chillers, towers, pumps, coils, fans, air handlers, or Variable Air Volume (VAV) boxes. Operating Range The Single Zone Mega Inverter Wall Mounted product has a nominal capacity range of 3/4 to 2 tons (depending on outdoor/indoor units). Operating ranges include: Mega (HEV) Outdoor Units Cooling: 64 F DB to 118 F DB Heating: 23 F WB to 65 F WB Mega 115V (HXV) Outdoor Units Cooling: 14 F DB to 118 F DB Heating: 14 F WB to 65 F WB Compact Size Single Zone Mega Inverter Wall Mounted outdoor units have the following footprints: LSU090HEV, LSU120HEV (WxHxD (in.)): 28 1/4 x 19 1/32 x 9 1/16 LSU180HEV (WxHxD (in.)): 30 5/16 x 21 1/2 x 11 5/16 LSU240HEV (WxHxD (in.)): 34 1/4 x 25 13/16 x 12 19/32 LSU090HXV, LSU120HXV (WxHxD (in.)): 28 1/4 x 19 1/2 x 9 1/16 Heat Transfer Efficiency Fin Design with GoldFin Coating All Single Zone Mega Inverter Wall Mounted outdoor units are provided with large surface coils made of copper tubes with louvered aluminum fins designed to maximize unit operating efficiency over a wide range of ambient conditions. Standard from the factory, every LG Single Zone Mega Inverter Wall Mounted outdoor coil fin surface is coated with LG s exclusive GoldFin anti-corrosive coating designed to prevent natural surface corrosion of the aluminum fins. This maintains heat transfer properties of the coil for an extended time. A hydrophilic coating is applied to the outdoor unit coil fin surface over the GoldFin coating. This coating enhances the development of heavier water droplets gathering on the fin surface. As a result, the droplets roll off the fin surfaces, delaying the point when frost forms on the coil surface during heating operation. This coating also makes it possible to easily clean the outdoor unit coil using a mild soap. Other Features Inverter variable speed compressor Jet Cool (HEV/HXV) / Jet Heat (HXV) Dehumidifying mode Chaos Wind Auto restart Auto operation Self-cleaning indoor coil Condensate sensor connection Smaller footprint Precision load matching Meets AHRI 210/240 8 Product Data

9 Unit Nomenclature Single Zone Mega Wall Mounted Indoor and Outdoor Units Family LS= Mega LS N 090 HEV Type N = Indoor Wall Mount Unit U = Outdoor Heat Pump Unit Nominal Capacity (Nominal cooling capacity in Btu/h) 090 = 9, = 12, = 18, = 24,000 Indoor/Outdoor Product HEV = Mega HXV = Mega 115V Product Data Product Data 9

10 General Data Single Zone Mega Inverter Pairing Table The following table shows the available outdoor and indoor unit, along with the factory provided controller. Table 1: Single Zone Mega Inverter Pairing Table Outdoor Unit Model/ Btu/h Indoor Unit Model/ Btu/h Controller LSU090HEV / 9,000 LSU120HEV / 12,000 LSN090HEV / 9,000 LSN120HEV / 12,000 AKB Single Zone Mega Inverter Wall Mounted Engineering Manual LSU180HEV / 18,000 LSN180HEV / 18,000 AKB LSU240HEV / 24,000 LSN240HEV / 24,000 AKB Single Zone Mega 115V Inverter Pairing LSU090HXV / 9,000 LSU120HXV / 12,000 LSN090HXV / 9,000 LSN120HXV / 12,000 AKB Product Data

11 General Data Single Zone Mega Inverter Specifications Table 2: Unit General Data Type Single Zone Mega Inverter System (Model IDU/ODU) LS090HEV (LSN090HEV/LSU090HEV) LS120HEV (LSN120HEV/LSU120HEV) Nominal Cooling Capacity (Btu/h) 8,500 12,000 Cooling Power Input 1 (kw) Nominal Heating Capacity (Btu/h) 9,000 12,000 Heating Power Input 1 (kw) Cooling COP EER SEER HSPF Power Supply (V / Hz / Ø) /60/1 ODU Operating Range Cooling ( F DB) Heating ( F WB) IDU Operating Range Cooling ( F WB) Heating ( F DB) Indoor Temperature Setting Range Cooling ( F) Heating ( F) Unit Data Refrigerant Type 2 R410A Refrigerant Control Capillary Tube IDU Sound Pressure 3 ± 3 db(a) (H/M/L) 39/33/25 39/33/25 ODU Sound Pressure ± 3 db(a) Indoor Unit (Net/Shipping Weight lbs.) 16/21 20/25 Outdoor Unit (Net/Shipping Weight lbs.) 52/56 49/53 Power/Communication Cable 4 (No. x AWG) 4 x 18 Compressor Compressor Type (Qty) Single Rotary (1) Single Rotary (1) Fan Indoor Type (Qty) Cross Flow (1) Outdoor Type (Qty) Propeller (1) Motor/Drive Brushless Digitally Controlled/Direct Airflow Rate Indoor - Max/H/M/L (CFM) 318/276/226/ /353/272/212 Outdoor - Max (CFM) Product Data Product Data 11

12 General Data Single Zone Mega Inverter Specifications Table 2: Unit General Data (Continued) Single Zone Mega Inverter Wall Mounted Engineering Manual Type Single Zone Mega Inverter System (Model IDU/ODU) LS090HEV (LSN090HEV/LSU090HEV) LS120HEV (LSN120HEV/LSU120HEV) Piping Liquid Line (in, OD) 1/4 1/4 Vapor Line (in, OD) 3/8 3/8 Condensation Line (OD ID) 27/32 5/8 27/32 5/8 Additional Refrigerant Charge (oz/ft) Pipe Length (Minimum / Maximum) (ft) / / 49.2 Piping Length (no add l refrigerant, ft) Max Elevation Difference (ft) EEV: Electronic Expansion Valve Power wiring is field supplied and must comply with the applicable local and national codes. This unit comes with a dry helium charge. This data is rated 0 ft above sea level, with 24.6 ft of refrigerant line per indoor unit and a 0 ft level difference between outdoor and indoor units. All capacities are net with a combination ratio between %. Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and 67ºF wet bulb (WB); and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB); and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 1 Power Input is rated at high speed. 2 Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or destroy R410A refrigerant according to applicable regulations (40 CFR Part 82, Subpart F) under section 608 of CAA. 3 Sound Pressure levels are tested in an anechoic chamber under ISO Standard All power/communication cable to be minimum 18 AWG, 4-conductor, stranded, shielded and must comply with applicable and national code. 5 Piping lengths are equivalent. 12 Product Data

13 General Data Single Zone Mega Inverter Specifications Table 3: Unit General Data Type Single Zone Mega Inverter System (Model IDU/ODU) LS180HEV (LSN180HEV/LSU180HEV) LS240HEV (LSN240HEV/LSU240HEV) Nominal Cooling Capacity (Btu/h) 17,000 22,000 Cooling Power Input 1 (kw) Nominal Heating Capacity (Btu/h) 19,000 22,000 Heating Power Input 1 (kw) Cooling COP EER SEER HSPF Power Supply (V / Hz / Ø) /60/1 ODU Operating Range Cooling ( F DB) Heating ( F WB) IDU Operating Range Cooling ( F WB) Heating ( F DB) Indoor Temperature Setting Range Cooling ( F) Heating ( F) Unit Data Refrigerant Type 2 R410A Refrigerant Control Capillary Tube IDU Sound Pressure 3 ± 3 db(a) (H/M/L) 42/40/35 45/40/35 ODU Sound Pressure ± 3 db(a) Indoor Unit (Net/Shipping Weight lbs.) 28/30 28/34 Outdoor Unit (Net/Shipping Weight lbs.) 72/77 92/104 Power/Communication Cable 4 (No. x AWG) 4 x 18 Compressor Compressor Type (Qty) Twin Rotary (1) Twin Rotary (1) Fan Indoor Type (Qty) Cross Flow (1) Outdoor Type (Qty) Propeller (1) Motor/Drive Brushless Digitally Controlled/Direct Airflow Rate Indoor - Max/H/M/L (CFM) 629/512/441/ /600/494/388 Outdoor - Max (CFM) 1,342 1,766 Product Data Product Data 13

14 General Data Single Zone Mega Inverter Specifications Table 3: Unit General Data (Continued) Single Zone Mega Inverter Wall Mounted Engineering Manual Type Single Zone Mega Inverter System (Model IDU/ODU) LS180HEV (LSN180HEV/LSU180HEV) LS240HEV (LSN240HEV/LSU240HEV) Piping Liquid Line (in, OD) 1/4 1/4 Vapor Line (in, OD) 1/2 5/8 Condensation Line (OD ID) 27/32 5/8 27/32 5/8 Additional Refrigerant Charge (oz/ft) Pipe Length (Minimum / Maximum) (ft) / / 65.6 Piping Length (no add l refrigerant, ft) Max Elevation Difference (ft) EEV: Electronic Expansion Valve Power wiring is field supplied and must comply with the applicable local and national codes. This unit comes with a dry helium charge. This data is rated 0 ft above sea level, with 24.6 ft of refrigerant line per indoor unit and a 0 ft level difference between outdoor and indoor units. All capacities are net with a combination ratio between %. Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and 67ºF wet bulb (WB); and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB); and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 1 Power Input is rated at high speed. 2 Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or destroy R410A refrigerant according to applicable regulations (40 CFR Part 82, Subpart F) under section 608 of CAA. 3 Sound Pressure levels are tested in an anechoic chamber under ISO Standard All power/communication cable to be minimum 18 AWG, 4-conductor, stranded, shielded and must comply with applicable and national code. 5 Piping lengths are equivalent. 14 Product Data

15 General Data Single Zone Mega 115V Inverter Specifications Table 4: Unit General Data Type Single Zone Mega Inverter System (Model IDU/ODU) LS090HXV (LSN090HXV/LSU090HXV) LS120HXV (LSN120HXV/LSU120HXV) Cooling Capacity (Min/Rated/Max) (Btu/h) 1,023 / 8,500 / 13,785 1,023 / 12,000 / 13,785 Cooling Power Input 1 (kw) Heating Capacity (Min/Rated/Max) (Btu/h) 1,023 / 10,900 / 22,178 1,023 / 13,000 / 22,178 Heating Power Input 1 (kw) COP EER SEER HSPF Power Supply (V / Hz / Ø) 115/60/1 ODU Operating Range Cooling ( F DB) Heating ( F WB) IDU Operating Range Cooling ( F WB) Heating ( F DB) Indoor Temperature Setting Range Cooling ( F) Heating ( F) Unit Data Refrigerant Type 2 R410A Refrigerant Control EEV IDU Sound Pressure 3 ± 3 db(a) (H/M/L/Sleep) 39/33/23/19 39/33/23/19 ODU Sound Pressure ± 3 db(a) Indoor Unit (Net/Shipping Weight lbs.) 23/26 23/26 Outdoor Unit (Net/Shipping Weight lbs.) 67/79 67/79 Power/Communication Cable 4 (No. x AWG) 4 x 18 Compressor Compressor Type (Qty) Single Rotary (1) Single Rotary (1) Fan Indoor Type (Qty) Cross Flow (1) Outdoor Type (Qty) Propeller (1) Motor/Drive Brushless Digitally Controlled/Direct Airflow Rate Indoor - Max/H/M/L (CFM) 335/272/212/ /272/212/124 Outdoor - Max (CFM) 1,000 1,000 Product Data Product Data 15

16 General Data Single Zone Mega 115V Inverter Specifications Table 4: Unit General Data (Continued) Single Zone Mega Inverter Wall Mounted Engineering Manual Type Single Zone Mega Inverter System (Model IDU/ODU) LS090HXV (LSN090HXV/LSU090HXV) LS120HXV (LSN120HXV/LSU120HXV) Piping Liquid Line (in, OD) 1/4 1/4 Vapor Line (in, OD) 3/8 3/8 Condensation Line (OD ID) 27/32 5/8 27/32 5/8 Additional Refrigerant Charge (oz/ft) Pipe Length (Minimum/Maximum) (ft) / / 49.2 Piping Length (no add l refrigerant, ft) Max Elevation Difference (ft) EEV: Electronic Expansion Valve Power wiring is field supplied and must comply with the applicable local and national codes. This unit comes with a dry helium charge. This data is rated 0 ft above sea level, with 24.6 ft of refrigerant line per indoor unit and a 0 ft level difference between outdoor and indoor units. All capacities are net with a combination ratio between %. Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and 67ºF wet bulb (WB); and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB). Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB); and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB). 1 Power Input is rated at high speed. 2 Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or destroy R410A refrigerant according to applicable regulations (40 CFR Part 82, Subpart F) under section 608 of CAA. 3 Sound Pressure levels are tested in an anechoic chamber under ISO Standard All power/communication cable to be minimum 18 AWG, 4-conductor, stranded, shielded and must comply with applicable and national code. 5 Piping lengths are equivalent. 16 Product Data

17 Electrical Data Single Zone Mega and Mega 115V Inverter Outdoor Units Table 5: V, 60Hz, 1-Phase Single Zone Mega Inverter Outdoor Units Unit Model Nos. Nom. Tons Compressor Qty Compressor(A) Cool/Heat Fan Qty ODU Fan(A) MCA(A) MOP(A) LSU090HEV 3/ / LSU120HEV / LSU180HEV 1 1/ / LSU240HEV / For component model nos. see the specification table on pages Voltage tolerance is ±10%. Maximum allowable voltage unbalance is 2%. MSC = Maximum Starting Current. MCA = Minimum Circuit Ampacity. Maximum Overcurrent Protectin (MOP) is calculated as follows: (Largest motor FLA x 2.25) + (Sum of other motor FLA) rounded down to the nearest standard fuse size. Table 6: 115V, 60Hz, 1-Phase Single Zone Mega 115V Inverter Outdoor Units Unit Model Nos. Nom. Tons Compressor Qty Compressor(A) Cool/Heat Fan Qty ODU Fan(A) MCA(A) MOP(A) LSU090HXV 3/4 1 10/ LSU120HXV / For component model nos. see the specification table on page 15 Voltage tolerance is ±10%. Maximum allowable voltage unbalance is 2%. MSC = Maximum Starting Current. MCA = Minimum Circuit Ampacity. Maximum Overcurrent Protectin (MOP) is calculated as follows: (Largest motor FLA x 2.25) + (Sum of other motor FLA) rounded down to the nearest standard fuse size. Product Data Product Data 17

18 OUTDOOR UNIT DIMENSIONS LSu090HEV, LSu120HEV 9-1/4 10-1/16 Single Zone Mega Inverter Wall Mounted Engineering Manual 2-1/4 2-3/16 7/ /32 Ø17-3/8 4 1 Unit: inch 10-1/2 28-1/4 2-3/16 9-1/ /8 Item No. Part Name Remarks Return Air Grille 18-1/4 28-1/4 18 Product data

19 OUTDOOR UNIT DIMENSIONS LSu180HEV 21-1/ / / / / /1 Ø18 2 Product Data 4-3/ / /16 6-3/ / /32 Item No. Part Name Return Air Grille 11-5/16 5 Unit: inch Remarks Product data 19

20 OUTDOOR UNIT DIMENSIONS LSu240HEV 25-13/ / /32 Single Zone Mega Inverter Wall Mounted Engineering Manual 3 3-3/32 1 Ø20-29/32 Unit: inch 11-29/ /32 2-3/ /16 Return Air Grille Item No. Part Name Remarks 21-1/2 6-5/ /4 20 Product data

21 . OUTDOOR UNIT DIMENSIONS LSu090HXV, LSu120HXV 9 9/32 9 1/ /32 Ø17 6/ /4 18 7/ /4 2 1/4 7/ / / / / /32 Product Data Return Air Grille Unit: inch Product data 21

22 INDOOR UNIT DIMENSIONS LSN090HEV Left rear piping Single Zone Mega Inverter Wall Mounted Engineering Manual 5-11/16 7-9/ /16 7-9/16 Ø2-9/16 Ø2-9/16 Installation Plate 5 Right rear piping Unit: inch Unit Outline 14-7/8 Place a level on raised tab 14-7/8 Return Air Grille Hole Item No. Part Name Remarks / /4 7-1/ Product data

23 INDOOR UNIT DIMENSIONS LSN120HEV 3 Unit Outline Ø2-9/16 Left Rear Piping /4 5-1/ /16 Place a level on raised tab 5 Installation Plate 2 Ø2-9/16 Right Rear Piping 9-5/8 8-1/4 4 Item No. Part Name Hole Return Air Grille Remarks 23 Product data Product Data /8 4-13/ /4 Unit: inch

24 INDOOR UNIT DIMENSIONS LSN180HEV, LSN240HEV Ø2-13/16 Left rear piping Single Zone Mega Inverter Wall Mounted Engineering Manual 2-11/16 2-3/16 Measuring Tape 4-3/32 Hanger 8-3/32 Installation Plate Measuring Tape Right rear piping Ø2-13/16 5 Unit: inch Place a level on raised tab Unit Outline 18-3/ /32 Return Air Grille Item No. Part Name Remarks 12-13/ / /16 24 Product data

25 INDOOR UNIT DIMENSIONS LSN090HXV, LSN120HXV Left rear piping 6-29/32 8-9/ /4 3-3/4 Right rear piping Installation Plate Ø2-25/32 Ø2-25/ / /32 Unit Outline 2-5/ /16 Place a level on raised tab 29/ / /32 8-9/32 3 Product Data Unit: inch Return Air Grille Product data 25

26 Acoustic Data Single Zone Mega Inverter Outdoor Units Sound Pressure Levels Figure 1: Mega Inverter Sound Measurement Table 7: Mega Inverter Outdoor Units - Sound Levels Single Zone Mega Inverter Wall Mounted Engineering Manual 26 Product Data Figure 2: LSU090HEV Octave Band Sound Pressure Level (0dB = 20μPa) Figure 4: LSU180HEV Octave Band Sound Pressure Level (0dB = 20μPa) ft Approximate Hearing Threshold Approximate Hearing Threshold LSU090HEV Octave Band Center Frequency (Hz) LSU180HEV NC-65 NC-60 NC-55 NC-50 NC-45 NC-40 NC-3 5 NC-3 0 NC-25 NC-20 NC-15 NC-65 NC-60 NC-55 NC-50 NC-45 NC-40 NC-3 5 NC-3 0 NC-25 NC-20 NC Octave Band Center Frequency (Hz) Model Figure 3: LSU120HEV Figure 5: LSU240HEV Octave Band Sound Pressure Level (0dB = 20μPa) Octave Band Sound Pressure Level (0dB = 20μPa) LSU120HEV NC-65 NC-60 NC-55 NC-50 NC-45 NC-40 NC-3 5 NC NC-25 Approximate NC-20 Hearing Threshold NC Octave Band Center Frequency (Hz) Sound Levels [db(a)] Max LSU090HEV 47 LSU120HEV 47 LSU180HEV 51 LSU240HEV 53 LSU240HEV NC-65 NC-60 NC-55 NC-50 NC-45 NC-40 NC-3 5 NC-3 0 NC-25 Approximate Hearing NC Threshold NC Octave Band Center Frequency (Hz)

27 Sound Pressure Levels Acoustic Data Single Zone Mega 115V Inverter Outdoor Units Figure 6: Mega 115V Inverter Sound Measurement Table 8: Mega 115V Inverter Outdoor Units - Sound Levels 3.28 ft Sound Levels [db(a)] Model Max LSU090HXV 47 LSU120HXV 47 Figure 7: LSU090HXV Figure 8: LSU120HXV 80 LSU090HXV 80 LSU120HXV Octave Band Sound Pressure Level (0dB = 20μPa) Approximate Hearing Threshold Octave Band Center Frequency (Hz) NC-65 NC-60 NC-55 NC-50 NC-45 NC-40 NC-35 NC-30 NC-25 NC-20 NC-15 Octave Band Sound Pressure Level (0dB = 20μPa) Approximate Hearing Threshold Octave Band Center Frequency (Hz) NC-65 NC-60 NC-55 NC-50 NC-45 NC-40 NC-35 NC-30 NC-25 NC-20 NC-15 Product Data Product Data 27

28 Acoustic Data Single Zone Mega Inverter Indoor Units Sound Pressure Levels Figure 9: Mega Inverter Sound Measurement Figure 11: LSN180HEV Unit: Feet 80 LSN180HEV Single Zone Mega Inverter Wall Mounted Engineering Manual Figure 10: LSN090HEV, LSN120HEV Octave Band Sound Pressure Level (0dB = 20μPa) Microphone Table 9: Mega Inverter Indoor Units - Sound Levels Sound Levels [db(a)] Model H M L LSN090HEV LSN120HEV LSN180HEV LSN240HEV LSN090HEV, LSN120HEV Octave Band Sound Pressure Level (0dB = 20μPa) Octave Band Center Frequency (Hz) Figure 12: LSN240HEV Octave Band Sound Pressure Level (0dB = 20μPa) LSN240HEV Octave Band Center Frequency (Hz) Octave Band Center Frequency (Hz) 28 Product Data

29 Sound Pressure Levels Acoustic Data Single Zone Mega 115V Inverter Indoor Units Figure 13: Mega 115V Inverter Sound Measurement Unit: Feet Figure 14: LSN090HXV, LSN120HXV 80 LSN090HXV LSN120HXV Microphone Table 10: Mega 115V Inverter Indoor Units - Sound Levels Sound Levels [db(a)] Model H M L Sleep LSN090HXV LSN120HXV Octave Band Sound Pressure Level (0dB = 20μPa) Octave Band Center Frequency (Hz) Product Data Product Data 29

30 Refrigerant Flow Diagrams LSN090HEV/LSU090HEV LSN120HEV/LSU120HEV Indoor Unit Outdoor Unit Liquid Side Single Zone Mega Inverter Wall Mounted Engineering Manual Th1 Heat Exchanger (Evaporator) Th2 Th3 2-Way Valve Gas Side 3-Way Valve Accumulator Compressor Capillary Tube Heat Exchanger (Condenser) Th4 Reversing Valve LOC Description PCB Connector Th 1 Indoor air temperature thermistor CH-TH1(Indoor) Th 2 Water level sensor (Option) CH-TH2 (Indoor) Th 3 Evaporating middle temperature thermistor CH-TH3 (Indoor) Th 4 Discharge pipe temperature thermistor CN-TH2 (Outdoor) Th 5 Heat exchanger temperature thermistor CN-TH1 (Outdoor) Th 6 Outdoor air temperature thermistor CN-TH1 (Outdoor) Th5 Cooling Heating Th6 30 Product Data

31 Refrigerant Flow Diagrams LSN180HEV/LSU180HEV Indoor Unit Outdoor Unit Liquid Side Th2 Th3 2-Way Valve Capillary Tube Th1 Heat Exchanger (Evaporator) Heat Exchanger (Condenser) Th6 Th5 Gas Side Th4 3-Way Valve Accumulator Reversing Valve Compressor LOC Description PCB Connector Th 1 Indoor air temperature thermistor CH-TH1(Indoor) Th 2 Water level sensor (Option) CH-TH2 (Indoor) Th 3 Evaporating middle temperature thermistor CH-TH3 (Indoor) Th 4 Discharge pipe temperature thermistor CN-TH2 (Outdoor) Th 5 Heat exchanger temperature thermistor CN-TH1 (Outdoor) Th 6 Outdoor air temperature thermistor CN-TH1 ( Outdoor) Cooling Heating Product Data Product Data 31

32 Refrigerant Flow Diagrams LSN240HEV/LSU240HEV Indoor Unit Outdoor Unit Liquid Side Single Zone Mega Inverter Wall Mounted Engineering Manual Th1 Heat Exchanger (Evaporator) Th2 Th3 2-Way Valve Gas Side 3-Way Valve Accumulator Compressor Capillary Tube Heat Exchanger (Condenser) Th4 Reversing Valve LOC Description PCB Connector Th 1 Indoor air temperature thermistor CH-TH1 (Indoor) Th 2 Water level sensor (Option) CH-TH2 (Indoor) Th 3 Evaporating middle temperature thermistor CH-TH3 (Indoor) Th 4 Discharge pipe temperature thermistor CN-TH2 (Outdoor) Th 5 Heat exchanger temperature thermistor CN-TH1(Outdoor) Th 6 Outdoor air temperature thermistor CN-TH1(Outdoor) Th5 Cooling Heating Th6 32 Product Data

33 Refrigerant Flow Diagrams LSN090HXV/LSU090HXV LSN120HXV/LSU120HXV Indoor Unit Outdoor Unit Liquid Side 2-Way Valve EEV Th1 Heat Exchanger (Evaporator ) Th2 Heat Exchanger (Condenser) Th5 Th4 Gas Side 3-Way Valve Accumulator Compressor Th3 Reversing Valve Cooling Heating Product Data LOC. Description P C B C onnector T h1 Indoor air temperature thermistor C N-T H1(Indoor) Th2 Evaporating middle temperature thermistor CN-TH2 (Indoor) Th3 Discharge pipe temperature thermistor CN-TH2 (Outdoor) Th4 Condensing middle temperature thermistor CN-TH1 (Outdoor) Th5 Outdoor air temperature thermistor CN-TH1 (Outdoor) EEV : Electronic Expansion Valve Product Data 33

34 Single Zone Mega Inverter Wall Mounted Engineering Manual Wiring Diagram LSU090HEV, LSU120HEV Single Zone Mega Inverter 34 Product Data

35 Product Data Single Zone Mega Inverter Wiring Diagram LSU180HEV Product Data 35

36 Single Zone Mega Inverter Wall Mounted Engineering Manual Wiring Diagram LSU240HEV Single Zone Mega Inverter 36 Product Data

37 Product Data Single Zone Mega 115V Inverter Wiring Diagram LSU090HXV, LSU120HXV 250V 250V 250V Product Data 37

38 Single Zone Mega Inverter Wall Mounted Engineering Manual Wiring Diagram LSN090HEV, LSN120HEV LSN180HEV, LSN240HEV Single Zone Mega Inverter ASNW183CSA7 (LSN180HEV), ASNW243CSA7 (LSN240HEV) 38 Product Data

39 Product Data Single Zone Mega 115V Inverter Wiring Diagram LSN090HXV, LSN120HXV MEZ Product Data 39

40 Accessories LG Monitoring View (LGMV) Diagnostic Software and Cable Single Zone Mega Inverter 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. The main screen for LGMV allows the user to view the following real time data on one screen: Actual inverter compressor speed Target inverter compressor speed Actual outdoor fan speed Target outdoor unit fan speed Actual superheat Inverter compressor current value Outdoor air temperature Actual high pressure/saturation temperature Actual low pressure/saturation temperature Suction temperature Inverter compressor discharge temperature Outdoor coil pipe temperature Liquid line pipe temperature Inverter compressor operation indicator light Four-way reversing valve operation Additional information that can be gathered from the main screen: 1. Graph: Graphic shows the following: Compressors showing actual speeds IDUs Low and high pressures indicator light Pressure graph showing actual low pressure and actual high pressure levels Error code display Operating mode indicator Total number of connected indoor units (for multi zone systems) Communication indicator lights Unit error code Indoor unit capacity Indoor unit operating mode Indoor unit fan speed Indoor unit room temperature Indoor unit inlet pipe temperature Indoor unit outlet pipe temperature Temperature sensors Four-way reversing valve Outdoor fans showing status and speeds 2. Setting: Converts metric values to imperial values. 3. Making Data: Recording of real time data to a separate file created to be stored on the user s computer. 4. Loading Data: Recorded data from a saved.csv file can be loaded to create an LGMV session. 5. Electrical Data: The lower half of main screen is changed to show the following: Inverter compressor - Amps - Volts - Power Hz - Inverter control board fan Hz Figure 15: MV Diagnostic Screen 40 Product Data

41 Accessories LG Monitoring View (LGMV) Diagnostic Software and Cable - Continued The software is available in a high version with all of the features listed above. The low version has all features as the high version without Target High Pressure and Target Low Pressure values shown on main screen. In lieu of connecting to the ODU, user has the option to connect to IDU with the use of a USB to RS-485 connector kit. When connected through IDU, user will not be able to record data. This software can be used to both commission new systems and troubleshoot existing systems. LGMV data can be recorded to a.csv file and ed to an LG representative to assist with diagnostic evaluations. Recommended Minimum PC Configuration: CPU: Pentium IV 1.6 GHz Operating System: Windows NT/2000/XP/Vista Main Memory: 256 MB Hard Disk: 600 MB when operating Web Browser: Internet Explorer 5.0 Figure 16: MV Diagnostic Screen - High Version Product Data Product Data 41

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43 PERFORMANCE DATA Cooling Capacity Data on page 44 Heating Capacity Data on page 47

44 Performance Data Cooling Capacity LSN090HEV/LSU090HEV Single Zone Mega Inverter Wall Mounted Engineering Manual Outdoor air temp. ( F DB) Indoor Air Temp. F DB/ F WB 64/53 68/57 72/61 77/64 80/67 86/72 90/75 TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI DB = Dry Bulb Temperature ( F) WB = Wet Bulb Temperature ( F) TC = Total Capacity (kbtu/h). SC = Sensible Capacity (kbtu/h) PI = Power Input (kw) (includes compressor, indoor fan motor and outdoor fan motor). LSN120HEV/LSU120HEV Outdoor air temp. ( F DB) NOTES 1. All capacities are net, evaporator fan motor heat is deducted. 2. Grey shading Indicates reference data. When operating at this temperature, these values can be different by discontinuous operation. 3. Direct interpolation is permissible. Do not extrapolate 4. Capacities are based on the following conditions: - Interconnecting Piping Length 24.6 ft - Level Difference of Zero. - Indoor Air Temperature :80 F (26.7 C) DB / 67 F (19.4 C) WB - Outdoor Air Temperature :95 F (35.0 C) DB / 75 F (23.9 C) WB Indoor Air Temp. F DB/ F WB 64/53 68/57 72/61 77/64 80/67 86/72 90/75 TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI DB = Dry Bulb Temperature ( F) WB = Wet Bulb Temperature ( F) TC = Total Capacity (kbtu/h). SC = Sensible Capacity (kbtu/h) PI = Power Input (kw) (includes compressor, indoor fan motor and outdoor fan motor). NOTES 1. All capacities are net, evaporator fan motor heat is deducted. 2. Grey shading Indicates reference data. When operating at this temperature, these values can be different by discontinuous operation. 3. Direct interpolation is permissible. Do not extrapolate 4. Capacities are based on the following conditions: - Interconnecting Piping Length 24.6 ft - Level Difference of Zero. - Indoor Air Temperature :80 F (26.7 C) DB / 67 F (19.4 C) WB - Outdoor Air Temperature :95 F (35.0 C) DB / 75 F (23.9 C) WB 44 Product Data

45 Performance Data Cooling Capacity LSN180HEV/LSU180HEV Outdoor air temp. ( F DB) Indoor Air Temp. F DB/ F WB 64/53 68/57 72/61 77/64 80/67 86/72 90/75 TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI DB = Dry Bulb Temperature ( F) WB = Wet Bulb Temperature ( F) TC = Total Capacity (kbtu/h). SC = Sensible Capacity (kbtu/h) PI = Power Input (kw) (includes compressor, indoor fan motor and outdoor fan motor). LSN240HEV/LSU240HEV Outdoor air temp. ( F DB) NOTES 1. All capacities are net, evaporator fan motor heat is deducted. 2. Grey shading Indicates reference data. When operating at this temperature, these values can be different by discontinuous operation. 3. Direct interpolation is permissible. Do not extrapolate 4. Capacities are based on the following conditions: - Interconnecting Piping Length 24.6 ft - Level Difference of Zero. - Indoor Air Temperature :80 F (26.7 C) DB / 67 F (19.4 C) WB - Outdoor Air Temperature :95 F (35.0 C) DB / 75 F (23.9 C) WB Indoor Air Temp. F DB/ F WB 64/53 68/57 72/61 77/64 80/67 86/72 90/75 TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI DB = Dry Bulb Temperature ( F) WB = Wet Bulb Temperature ( F) TC = Total Capacity (kbtu/h). SC = Sensible Capacity (kbtu/h) PI = Power Input (kw) (includes compressor, indoor fan motor and outdoor fan motor). NOTES 1. All capacities are net, evaporator fan motor heat is deducted. 2. Grey shading Indicates reference data. When operating at this temperature, these values can be different by discontinuous operation. 3. Direct interpolation is permissible. Do not extrapolate 4. Capacities are based on the following conditions: - Interconnecting Piping Length 24.6 ft - Level Difference of Zero. - Indoor Air Temperature :80 F (26.7 C) DB / 67 F (19.4 C) WB - Outdoor Air Temperature :95 F (35.0 C) DB / 75 F (23.9 C) WB Product Data Product Data 45

46 Performance Data Cooling Capacity LSN090HXV/LSU090HXV Single Zone Mega Inverter Wall Mounted Engineering Manual Outdoor air temp. ( F DB) Outdoor air temp. ( F DB) Indoor Air Temp. F DB/ F WB 64/53 68/57 72/61 77/64 80/67 86/72 90/75 TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI DB = Dry Bulb Temperature ( F) WB = Wet Bulb Temperature ( F) TC = Total Capacity (kbtu/h). SC = Sensible Capacity (kbtu/h) PI = Power Input (kw) (includes compressor, indoor fan motor and outdoor fan motor). LSN120HXV/LSU120HXV Indoor Air Temp. F DB/ F WB 64/53 68/57 72/61 77/64 80/67 86/72 90/75 TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI DB = Dry Bulb Temperature ( F) WB = Wet Bulb Temperature ( F) TC = Total Capacity (kbtu/h). SC = Sensible Capacity (kbtu/h) PI = Power Input (kw) (includes compressor, indoor fan motor and outdoor fan motor). NOTES 1. All capacities are net, evaporator fan motor heat is deducted. 2. Grey shading Indicates reference data. When operating at this temperature, these values can be different by discontinuous operation. 3. Direct interpolation is permissible. Do not extrapolate 4. Capacities are based on the following conditions: - Interconnecting Piping Length 24.6 ft - Level Difference of Zero. - Indoor Air Temperature :80 F (26.7 C) DB / 67 F (19.4 C) WB - Outdoor Air Temperature :95 F (35.0 C) DB / 75 F (23.9 C) WB NOTES 1. All capacities are net, evaporator fan motor heat is deducted. 2. Grey shading Indicates reference data. When operating at this temperature, these values can be different by discontinuous operation. 3. Direct interpolation is permissible. Do not extrapolate 4. Capacities are based on the following conditions: - Interconnecting Piping Length 24.6 ft - Level Difference of Zero. - Indoor Air Temperature :80 F (26.7 C) DB / 67 F (19.4 C) WB - Outdoor Air Temperature :95 F (35.0 C) DB / 75 F (23.9 C) WB 46 Product Data