Single Zone High Efficiency, Standard, Extended Pipe, and Mega Wall Mounted Installation Manual Single Zone High Efficiency: LS091HSV3, LS121HSV3, LS181HSV3, LS240HSV3 Single Zone Standard: LS307HV3, LS360HV3 Single Zone Extended Pipe: LS240HLV, LS300HLV, LS360HLV Single Zone Mega: LS090HEV, LS120HEV, LS180HEV, LS240HEV Single Zone Mega 115V: LS090HXV, LS120HXV
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Safety Instructions The instructions below must be followed to prevent product malfunction, property damage, injury or death to the user or other people. Incorrect operation due to ignoring any instructions will cause harm or damage. The level of seriousness is classified by the symbols described below. TABLE OF Symbols This symbol indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Safety Instructions INSTALLATION - CONTINUED Don’t store or use flammable gas / combustibles near the unit. There is risk of product failure, fire, explosion, and physical injury or death. When installing the unit in a low-lying area, or a location that is not level, use a raised concrete pad or concrete blocks to provide a solid, level foundation. This may prevent water damage and reduce abnormal vibration.
Safety Instructions WIRING High voltage electricity is required to operate this system. Adhere to the National Electrical Codes and these instructions when wiring. Improper connections and inadequate grounding can cause accidental injury or death. Always ground the unit following local, state, and National Electrical Codes. Turn the power off at the nearest disconnect before servicing the equipment. Electrical shock can cause physical injury or death. Properly size all circuit breakers or fuses.
Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Safety Instructions OPERATION Do not provide power to or operate the unit if it is flooded or submerged. To avoid physical injury, use caution when cleaning or servicing the air conditioner. There is risk of fire, electric shock, physical injury or death. Use a dedicated power source for this product. There is risk of fire, electric shock, physical injury or death.
Table of Contents Safety Instructions................................................................................. 3 General Data........................................................................................... 8 Unit Nomenclature................................................................................ 8 Single Zone High Efficiency Unit Specifications ���������������������������������� 9 Single Zone Standard Unit Specifications...........................................
General Data Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Unit Nomenclature Single Zone Wall Mount Indoor and Outdoor Units LS N 091 HSV Family LS= High Efficiency Wall Mount / Standard/ / Extended Pipe / Mega Type N = Indoor Wall Mount Unit U = Outdoor Heat Pump Unit 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 HSV = High Efficien
General Data Single Zone High Efficiency Unit Specifications Single Zone High Efficiency Units LS121HSV3 LS181HSV3 (LSN121HSV3/ (LSN181HSV3/ LSU121HSV3) LSU181HSV3) 11,200 0.89 13,300 1.0 3.90 12.5 21.5 11.0 208-230/60/1 18,200 1.4 22,000 1.7 3.66 12.6 20.5 9.7 LS240HSV3 (LSN240HSV3/ LSU240HSV3) 22,000 1.7 27,600 2.3 3.4 12.5 20.0 10.
General Data Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Single Zone High Efficiency Unit Specifications Table 1: Single Zone High Efficiency Unit Specifications - Continued Type LS091HSV3 System Model Number (IDU/ODU) (LSN091HSV3/ LSU091HSV3) Piping 1/4 Liquid Line (in, OD) 3/8 Vapor Line (in, OD) 27/32, 5/8 Condensation Line (OD, ID) 0.22 Additional Refrigerant Charge (oz/ft) 6.6/65.6 Pipe Length6 (ft) (Min./Max.) Piping Length6 (no add’l 41.
General Data Single Zone Standard Unit Specifications Single Zone Standard Units LS307HV3 (LSN307HV3/LSU307HV3) LS360HV3 (LSN360HV3/LSU360HV3) 30,000 3.0 32,000 3.1 3.0 10.0 18.0 9.5 208-230/60/1 33,000 4.0 35,200 3.8 2.7 8.2 16.1 9.
General Data Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Single Zone Standard Unit Specifications Table 2: Single Zone Standard Unit Specifications - Continued Type Single Zone Standard Units System Model Number (IDU/ODU) LS307HV3 (LSN307HV3/LSU307HV3) LS360HV3 (LSN360HV3/LSU360HV3) Piping 3/8 3/8 Liquid Line (in, OD) 5/8 5/8 Vapor Line (in, OD) 27/32, 5/8 27/32, 5/8 Condensation Line (OD/ID) 0.38 0.38 Additional Refrigerant Charge (oz/ft) 9.8/98.4 9.8/98.
General Data Single Zone Extended Pipe Unit Specifications EEV: Electronic Expansion Valve IDU: Indoor Unit ODU: Outdoor Unit 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 1996.
General Data Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Single Zone Extended Pipe Unit Specifications Table 3: Single Zone Extended Pipe Unit Specifications - Continued Type LS240HLV (LSN240HLV/ System Model Number (IDU/ODU) LSU240HLV) Piping 3/8 Liquid Line (in, OD) 5/8 Vapor Line (in, OD) 27/32, 5/8 Condensation Line (OD, ID) 0.38 Additional Refrigerant Charge (oz/ft) 9.8/164 Pipe Length6 (ft) (Min./Max.) Piping Length5 (no add’l 24.
General Data Single Zone Mega Unit Specifications Table 4: Single Zone Mega Unit Specifications Single Zone Mega Inverter LS090HEV (LSN090HEV/LSU090HEV) LS120HEV (LSN120HEV/LSU120HEV) 8,500 12,000 0.78 1.17 9,000 12,000 0.78 0.98 3.19 3.00 10.90 10.26 16.3 16.3 8.3 8.
General Data Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Single Zone Mega Unit Specifications Table 4: Single Zone Mega Unit Specifications - Continued Type System (Model IDU/ODU) Piping Liquid Line (in, OD) Vapor Line (in, OD) Condensation Line (OD | ID) Additional Refrigerant Charge (oz/ft) Pipe Length6 (ft) (Min./Max.
General Data Single Zone Mega Unit Specifications Table 4: Single Zone Mega Unit Specifications - Continued Type System (Model IDU/ODU) Nominal Cooling Capacity (Btu/h) Cooling Power Input1 (kW) Nominal Heating Capacity (Btu/h) Heating Power Input1 (kW) COP EER SEER HSPF Power Supply (V / Hz / Ø) ODU Operating Range Cooling (°F DB) Single Zone Mega Inverter LS180HEV (LSN180HEV/LSU180HEV) LS240HEV (LSN240HEV/LSU240HEV) 17,000 22,000 1.55 2.04 19,000 22,000 1.59 1.93 3.19 3.00 10.95 10.75 17.0 17.0 8.7 8.
General Data Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Single Zone Mega Unit Specifications Table 4: Single Zone Mega Unit Specifications - Continued Type System (Model IDU/ODU) Piping Liquid Line (in, OD) Vapor Line (in, OD) Condensation Line (OD | ID) Additional Refrigerant Charge (oz/ft) Pipe Length6 (ft) (Min./Max.
General Data Single Zone Mega115V Unit Specifications Table 5: Single Zone Mega 115V Unit Specifications Single Zone Mega Inverter LS090HXV (LSN090HXV/LSU090HXV) LS120HXV (LSN120HXV/LSU120HXV) 8,500 12,000 0.71 1.14 10,900 13,000 0.88 1.09 3.63 3.50 12.01 10.5 17.0 17.0 9.0 9.
Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual General Data Table 5: Single Zone Mega 115V Unit Specifications - Continued Type System (Model IDU/ODU) Piping Liquid Line (in, OD) Vapor Line (in, OD) Condensation Line (OD | ID) Additional Refrigerant Charge (oz/ft) Pipe Length6 (ft) (Min./Max.
General Data Electrical Table 6: Single Zone High Efficiency Indoor Unit Electrical Data Compressor Compressor Model Number Nom. Tons Qty (A) Cool/Heat 3/4 1 8.7/8.7 LSU091HSV3 1 1 8.7/8.7 LSU121HSV3 1-1/2 1 15.4/15.4 LSU181HSV3 1-3/4 1 15.4/15.4 LSU240HSV3 Fan Qty ODU Fan (A) IDU Fan (A) MCA (A) MOP (A) 1 1 1 1 0.40 0.40 0.25 0.25 0.4 0.4 0.4 0.5 10 10 19 19 15 15 25 25 MCA (A) MOP (A) 19 19 25 25 Table 7: Single Zone Standard Indoor Unit Electrical Data Model Number Nom.
General Data Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual R410A Refrigerant R410A Refrigerant R410A refrigerant has a higher operating pressure in comparison to R22 refrigerant and, therefore, all piping system materials installed must have a higher resisting pressure than the materials traditionally used in R22 systems. R410A refrigerant is an azeotrope of R32 and R125, mixed at 50:50, so the ozone depletion potential (ODP) is 0.
General Installation Guidelines Location Selection 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. • 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. • Do not use the unit in environments where oil, steam, or sulfuric gas are present as it can cause bodily injury or death.
General Installation Guidelines Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Oceanside Applications Oceanside Applications Figure 1: Oceanside Placement Using Windbreak Use of a Windbreak to Shield from Sea Wind Ocean winds may cause corrosion, particularly on the condenser and evaporator fins, which, in turn could cause product malfunction or inefficient performance. Windbreak • The unit should be installed in a soundproofed mechanical room.
General Installation Guidelines Mounting Bolt Location General Mounting Figure 3: Outdoor Unit Mounting Methods Securely attach the outdoor unit to a condenser pad, base rails, or another mounting platform that is securely anchored to the ground or building structure. Attach the outdoor unit with a bolt and nut on a concrete or rigid mount. See Figure 3. Follow applicable local codes for clearance, mounting, anchor and vibration attenuation requirements. All referenced materials are to be field-supplied.
General Installation Guidelines Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Required Clearances Proper airflow through the Single Zone outdoor unit coil is critical for correct unit operation. When installing, consider service, inlet and outlet, and minimum allowable space requirements as illustrated in the diagrams below.
General Installation Guidelines Mounting of Indoor Unit Installation Plate Mounting Installation Plate to Wall (091HSV3, 121HSV3, 181HSV3) Ø65 Ø65 Installation Plate 123 175 A Type B Type A Type : 95 B Type : 170 217 General Installation Guidelines 1. Before installation of the plate, confirm the position the screw types (A or B) between chassis and installation plate. 2. Mount the installation plate horizontally by aligning the centerline using a leveling tool (Figure 8). 3.
General Installation Guidelines Mounting Installation Plate to Wall (240HSV3, HV3, HLV) Follow the procedure and best practices when mounting the indoor unit’s plate to a wall. Figure 10: Installation Plate - Mounting Procedure 1. Mount the installation plate horizontally by aligning the centerline using a leveling tool (Figure 10). 2. Use type “A” screws when mounting the plating (these screws come with the plate). • If mounting the unit on concrete wall, use field supplied anchor bolts. 3.
General Installation Guidelines Mounting of Indoor Unit Installation Plate Mounting Installation Plate to Wall (Mega 090HEV, 120HEV) 1. Confirm the position of screws between chassis and installation plate (Figure 13 and Figure 14). 2. Mount the installation plate horizontally by aligning the centerline using a leveling tool (Figure 15 and Figure 16). 3. Use provided screws when mounting the plating. • If mounting the unit on concrete wall, use field supplied anchor bolts. 4.
General Installation Guidelines Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Mounting of Indoor Unit Installation Plate Mounting Installation Plate to Wall (Mega 180HEV, 240HEV) 1. Confirm the position of screws between chassis and installation plate (Figure 17). 2. Mount the installation plate horizontally by aligning the centerline using a leveling tool (Figure 18). 3. Use provided screws when mounting the plating.
General Installation Guidelines Mounting of Indoor Unit Installation Plate Mounting Installation Plate to Wall (Mega 115V - HXV Models) Follow the procedure and best practices when mounting the indoor unit’s plate to a wall. Figure 19: Installation Plate - Mounting Mega 115V Procedure Installation Plate 1. Mount the installation plate horizontally by aligning the centerline using a leveling tool (Figure 19). 2. Use type “A” screws when mounting the plating (these screws come with the plate).
General Installation Guidelines Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Mounting of Indoor Unit Mounting the Indoor Unit to the Installation Plate 1. Hook the indoor unit onto the upper portion of the installation plate ((1) Figure 21). 2. Engage the hooks at the top of the indoor unit with the upper edge of the installation plate. • Ensure that the hooks are properly seated on the installation plate by moving it left and right. 3.
General Installation Guidelines Piping Preparation Piping Preparation • Do not allow the refrigerant to leak during brazing; if the refrigerant combusts, it generates a toxic gas which can cause physical injury or death. • Do not braze in an enclosed location, and always test for gas leaks before / after brazing. Gas leaks can cause physical injury or death. • After brazing, check for refrigerant gas leaks. Refrigerant gas leaks can cause physical injury or death. Single Zone Pipe Connections 1.
General Installation Guidelines Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Piping Preparation / Piping Materials and Handling Figure 27: Tightening the Flare Nuts. Tightening the Flare Nuts Table 12: Tightening Torque for Flare Nuts. Pipe size (Inches O.D.) Tightening torque (ft-lbs) 1/4Ø 13.9 - 18 3/8Ø 24.5 - 30.3 1/2Ø 39.7 - 47.7 5/8Ø 45.5 - 59.2 Width of the flare (A [inches]) 1/8 1/8 1/8 1/16 Union 1.
General Installation Guidelines Piping Materials and Handling Brazing Practices Figure 29: Refrigerant Pipe Brazing. Refrigerant Piping It is imperative to keep the piping system free of contaminants and debris such as copper burrs, slag, or carbon dust during installation.Contaminants can result in mechanical failure of the system.
General Installation Guidelines Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Piping Materials and Handling Selecting Field-Supplied Copper Tubing Copper is the only approved refrigerant pipe material for use with Duct Free System Single Zone products, and LG recommends seamless phosphorous deoxidized ACR type copper pipe, hard-drawn rigid type “K” or “L”, or annealed-tempered, copper pipe.
General Installation Guidelines Piping Materials and Handling No Pipe Size Substitutions Use only the pipe size recommended by this installation manual. Using a different size is prohibited and may result in a system malfunction or failure to work at all. Figure 30: Installing Piping Above and Below an Obstacle. Obstacles Copper Expansion and Contraction Under normal operating conditions, the vapor pipe temperature of a Duct Free System can vary as much as 280°F.
General Installation Guidelines Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Piping Materials and Handling See table below for precalculated anticipated expansion for various pipe sizes and lengths of refrigerant tubing. To find the anticipated expansion value: 1. From the table below, find the row corresponding with the actual feet of the straight pipe segment. 2. Estimate the minimum and maximum temperature of the pipe. 3.
General Installation Guidelines Piping Materials and Handling Table 18: Radii of Coiled Expansion Loops and Developed Lengths of Expansion Offsets 1/4 Nominal Tube Size (OD) inches 3/8 1/2 3/4 6 7 8 9 38 44 50 59 9 10 11 13 54 63 70 83 11 12 14 16 66 77 86 101 12 14 16 19 77 89 99 117 14 16 18 21 86 99 111 131 15 17 19 23 94 109 122 143 16 19 21 25 102 117 131 155 17 20 22 26 109 126 140 166 Pipe Bends When bending soft copper, use long radi
General Installation Guidelines Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Piping Support, Elbow Usage Using Elbows Field-supplied elbows are allowed as long as they are designed for use with R410A refrigerant. The designer, however, should be cautious with the quantity and size of fittings used, and must account for the additional pressure losses in equivalent pipe length calculation.
General Installation Guidelines 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 35). Underground refrigerant pipe shall be routed inside a protective sleeve to prevent insulation deterioration.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Refrigerant Piping System Limitations Connection Limitations 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 21- Table 24 list pipe length limits that must be followed in the design of a Single Zone Wall Mount refrigerant pipe system.
Refrigerant Piping Connections Refrigerant Piping System Limitations Connection Limitations - Continued Table 23: Single Zone Extended Pipe Refrigerant Piping System Limitations Pipe Length (ELF = Equivalent Length of pipe in Feet) Elevation (All Elevation Limitations are Measured in Actual Feet) Longest total equivalent piping length Shortest total equivalent piping length Distance between fittings and indoor units or outdoor units If outdoor unit is above indoor unit If outdoor unit is below indoor unit
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Installation Overview Installation Duct Free Single Zone Wall Mounts are a one-to-one system. There is a direct piping connection between the outdoor Figure 38: Installation and Piping Connection Overview unit and the indoor unit. Figure 38 Illustrates the basic pipe connections between the outdoor and indoor unit.
Refrigerant Piping Connections Directional Pipe Formation Pipe Bundling Figure 40: Cutaway of Proper Pipe and Cable Bundling See Figure 40 for proper pipe and cable bundling. Note the placement of the piping along with the necessary insulation material. 1. Be sure to wrap each pipe with proper insulation material. 2. Secure the piping by wrapping vinyl tape around the pipe. • Use the narrow size tape for wrapping the actual pipe. 3.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Drain Hose Drain Hose Guidelines Refer to the diagrams below and follow proper installation and the running of the drain hose along the pipe installation line to avoid leakage. Once drain hose is set in place, always follow with evacuation and leakage testing of all piping to be sure all piping is properly sealed. Re-check and retest as necessary.
Refrigerant Piping Connections Outdoor Unit Connections Single Zone Wall Mount Outdoor Unit Connections (HSV3, HV3, HLV) Figure 46: Outdoor Unit Connection Cover Removal (HSV3) HSV3 Tubing Cover Refrigerant Piping Connections 1. Remove the tubing cover by loosening the fastening screws. See Figure 46 for HSV3 model and Figure 47 for HV3, HLV models. 2. Align the center of the refrigerant pipe and corresponding connection as shown in Figure 48 (on the next page). 3.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Outdoor Unit Connections Single Zone Wall Mount Outdoor Unit Connections (HSV3, HV3, HLV) - Continued Figure 48: Pipe Attachment Figure 49: Outdoor Unit Piping Connection (HSV3) Outdoor Unit HSV3 Liquid Piping (Smaller diameter) Torque Wrench Bracket for Main Power Cables Gas Piping (Larger diameter) Figure 50: Outdoor Unit Piping Connection (HV3, HLV) HV3, HLV Outdoor Unit
Refrigerant Piping Connections Outdoor Unit Connections Single Zone Wall Mount Outdoor Unit Connections (090HEV, 090HXV, 120HEV, 120HXV) Gas Piping (Larger diameter) Liquid Piping (Smaller diameter) Tubing Cover Torque wrench When tightening the flare nut with a torque wrench, ensure the direction for tightening follows the arrow on the wrench. Figure 52: Pipe Attachment Table 26: Torque Wrench Tightening Outside Diame- Torque (lbs-ft) ter (inches) 13-18 1/4 24.6-30.4 3/8 39.8-47.7 1/2 45.6-59.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Outdoor Unit Connections Single Zone Wall Mount Outdoor Unit Connections (180HEV) 1. Remove the tubing cover by loosening the fastening screws (Figure 53). 2. Align the center of the refrigerant pipe and corresponding connection as shown in Figure 52 (on previous page). 3. Refer to Figure 54 for correct liquid and gas pipe attachment onto outdoor unit. 4.
Refrigerant Piping Connections Outdoor Unit Connections Single Zone Wall Mount Outdoor Unit Connections (240HEV) Figure 55: Outdoor Unit Cover Removal (240HEV) 240HEV Terminal Block Refrigerant Piping Connections 1. Remove the tubing cover by loosening the fastening screws (Figure 55). 2. Align the center of the refrigerant pipe and corresponding connection as shown in Figure 56. 3. Refer to Figure 57 for correct liquid and gas pipe attachment onto outdoor unit. 4.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Indoor Unit Connections Piping to Indoor Unit (HSV3, HLV, HXV) Follow the steps below and refer to the illustrations on this page to connect piping to the Single Zone indoor unit. To see specific bundling of piping and drain hose, see Section, “Bundling and Cutting Line” on page 54. Also, refer back to “Drain Hose Guidelines” section for proper drainage slope during piping procedure.
Refrigerant Piping Connections Indoor Unit Connections - Conduit Bracket Placement Piping to Indoor Unit - Conduit Bracket Placement (HV3, HEV) Pay attention to bracket placement on each single zone units. Your model might be slightly different from figure shown in this manual. Figure 62: Installing Bracket for Conduit (120HEV) 120HEV Bracket Conduit Nut Refrigerant Piping Connections 1. Follow steps 1 through 6 on the previous page to connect piping to the rear of the indoor unit.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Bundling and Cutting Line Piping and cabling must be insulated and bundled together correctly for safety and usage. Follow proper methods and procedures as outlined here and on the next pages to ensure installation and piping are correctly installed. As shown in Figure 64, the connection pipe, along with the indoor unit pipe are fully encased in insulation material. 1.
Refrigerant Piping Connections Refrigerant Piping Insulation Refrigerant Piping Insulation To prevent heat loss/heat gain through the refrigerant piping, all refrigerant piping including liquid lines and vapor lines must be insulated separately. Insulation must be a minimum 1/2″ thick, and thickness may need to be increased based on ambient conditions and local codes.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Refrigerant Piping Insulation Minimum Refrigerant Pipe Ethylene Propylene Diene Methylene (EPDM) Insulation Wall Thickness Requirements Follow locals codes when selecting EPDM insulation wall thickness. Table 28: Insulation Guidelines for Typical and Special Circumstances Air-conditioned location Classification 1. Typical location 2.
Refrigerant Piping Connections Pipe Sleeves at Penetrations 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. Underground refrigerant pipe shall be routed inside a protective sleeve to prevent insulation deterioration.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Air Purging Air Purging Best Practices Air purging is done to the piping system after all piping has been connected between the indoor and outdoor unit. This step is necessary to be sure that air refrigerant can flow through the system without danger of leakage or pressure issues.
Refrigerant Piping Connections Leak Test/Soap Method Check Leak Test Perform the leak test by pressurizing nitrogen gas to 400 psi on both the liquid and gas pipes. Test with the piping service valves closed. If the pressure does not drop for twenty-four (24) hours, the system passes the test. If the pressure drops, there is a nitrogen leak in the system. Find the leak, repair, and then test again. Figure 75: Leak Test Diagram.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Evacuation of Lines Finishing Up Evacuation After successful leak testing has been performed, follow Evacuation procedure. Follow the same steps for charge hose hookup to the system. See Figure 74 on previous page for proper hookup. Procedure 1. Confirm that the “Lo” knob of the manifold valve is open. Refer back to Figure 74. 2.
Refrigerant Piping Connections Remote Controller Figure 76: Remote Controller - Installing Batteries Single Zone Remote Controller - Rear View Battery Cover Installing Batteries into Remote Controller As part of test running, you will need to insert batteries and power on the remote controller. To insert the batteries follow the steps below. For information on using the remote controller, refer to its owner’s manual. Battery Cover Tab 1. Push down on tab 2. Lift cover 3.
Refrigerant Piping Connections Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Pump Down, Cooling Only Mode Never air purge with refrigerant as it can lead to refrigerant leakage which can cause bodily harm and injury, especially if inhaled. Use a vacuum pump that can evacuate down to 500 microns. 1. If moisture remains in the piping after the system is evacuated for two (2) hours, break the vacuum (down to 7.5 psi with nitrogen gas). 2.
Electrical Wiring General Information and Safety Guidelines • Consider ambient conditions (temperature, direct sunlight, inclement weather, etc.) when selecting, installing, and connecting the power wiring. • Properly ground the Single Zone outdoor and indoor unit. Inproperly ground wire can cause communication problems from electrical noise, and motor current leakage. Ground wiring must always be installed by a qualified technician.
Electrical Wiring Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Power Wiring Specifications and Best Practices Power Supply / Power Wiring Specifications • Single Zone systems operate at 1Ø, 208-230V, 60Hz, with the exception of Mega 115V, which operates at 1Ø, 115V, 60Hz. • Power supply, wire type and size should be selected based on National Electrical Code and local codes. Maximum allowable voltage fluctuation ±10% or nameplate rated value.
Electrical Wiring Power Wiring Specifications and Best Practices Power Supply / Power Wiring Specifications - Continued • If power wires are not properly terminated and firmly attached, there is risk of fire, electric shock, and physical injury or death. • Never ground the shield of the communications cable to the indoor unit frame or other grounded entities of the building. • Never apply line voltage power to the communications cable terminal block. If contact is made, the PCBs may be damaged.
Electrical Wiring Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Controllers Controllers Refer to Table 31 as to which remote controller models to use for each Single Zone model types. Once all wiring is connected to the indoor and outdoor units be sure to test the accompanying remote controllers for performance. As always, follow all safety warnings and notes when operating the Single Zone units using the remote controller.
Electrical Wiring Indoor Unit Electrical Connections Overview - Connecting Indoor Unit Electrical Wiring The general guidelines for connecting electrical and communication cables to the indoor unit are the same for each of the Single Zone Wall Mounted indoor units, however, the actual connections on the terminal block will differ. See each illustration for the Single Zone unit model that you are wiring for correct contact on each terminal block.
Electrical Wiring Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Indoor Unit Electrical Connections Connecting Indoor Unit Electrical Wiring - Continued 5. When done, reattach the bottom panel to the indoor unit, being careful to align panel using the rear tabs. • You might need to give the panel a gentle tap with the palm of your hand to be sure it engages at the bottom. 6. Using a phillips screwdriver, reattach the screws to the bottom panel and secure. 7.
Electrical Wiring Indoor Unit Electrical Connections Figure 85: HLV Indoor Units - Terminal Block Connections HLV Control Cover Indoor Unit Electrical Wiring Knockout Terminal Block Connection for HLV See Figure 85 for specific terminal block wiring for all following Single Zone models: LSN240HLV LSN300HLV LSN360HLV Bottom Panel 1(L1) 2(L2) 3 Grounding Cable Electrical Wiring 1(L ) 2(N) 3 Power Connection Cable Figure 86: HV3 and 240HSV3 Indoor Units - Terminal Block Connections 307HV3, 360HV
Electrical Wiring Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Indoor Unit Electrical Connections Terminal Block Connection for 091HSV3, 121HSV3, 181HSV3 Figure 87: 091HSV3, 121HSV3, 181HSV3 Indoor Units - Terminal Block Connections 091HSV3,121HSV3 181HSV3 See Figure 87 for specific terminal block wiring for all following Single Zone models: LSN091HSV3 LSN121HSV3 LSN181HSV3 • Pay special attention to the location of the grounding cable and the cable res
Electrical Wiring Indoor Unit Electrical Connections Terminal Block Connection for Mega 115V 090HXV, 120HXV See Figure 88XX for specific terminal block wiring for all following Single Zone models: 090HXV, 120HXV LSN090HXV LSN120HXV Terminal Block Expanded View 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.
Electrical Wiring Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Outdoor Unit Electrical Connections Connecting Outdoor Unit Electrical Wiring The general guidelines for connecting electrical and communication cables to the outdoor unit are the same for each of the Single Zone Wall Mount units, however, the actual connections on the terminal block will differ.
Electrical Wiring Outdoor Unit Electrical Connections Connecting Outdoor Unit Electrical Wiring - Continued Figure 91: HV3 and 181HSV3, 240HSV3 Outdoor Unit - Electrical Connections HV3 (All models) 181HSV3, 240HSV3 Electrical Connections Terminal Block Connection for HV3 See Figure 91 for specific terminal block wiring for all following Single Zone outdoor unit models: LSU307HV3 LSU360HV3 Terminal Block Connections for 181HSV3 and 240HSV3 1(L1) 2(L2) 1(L1) 2(L2 ) 3 Electrical Wiring HV3 181HSV3, 24
Electrical Wiring Connecting Outdoor Unit Electrical Wiring - Continued Terminal Block Connection for 090HEV, 120HEV Figure 93: 090HEV, 120HEV Outdoor Unit - Electrical Connections 090HEV, 120HEV See Figure 93 for specific terminal block wiring for all following Single Zone outdoor unit models: 1(L1) 2(L2) 1(L1) 2(L2) 3 LSU090HEV LSU120HEV Terminal block Cord clamp Power cord Outdoor Unit Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Outdoor Unit Ele
Electrical Wiring Outdoor Unit Electrical Connections Connecting Outdoor Unit Electrical Wiring - Continued Figure 95: 240HEV Outdoor Unit - Electrical Connections Terminal Block Connection for 240HEV See Figure 95 for specific terminal block wiring for the following Single Zone outdoor unit model: 240HEV 1(L1) 2(L2) LSU240HEV 1(L1) 2(L2) 3 L 2(L2) N 1(L1) 1(L) 1(L1) 2(N) 2(L2) 3 3 Outdoor unit Terminal block Over 0.
Electrical Wiring Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Self Diagnosis Functions LG Monitoring View (LGMV) Diagnostic Software LGMV software (PRCTSL1 and PRCTFE1) allows the service technician or commissioning agent to connect a computer USB port to the Single Zone unit’s main printed circuit board (PCB) using an accessory cable without the need for a separate interface device.
Electrical Wiring Self Diagnosis Functions LG Monitoring View (LGMV) Diagnostic Software and Cable - Continued 5. Data (Figure 99) • Data Saving Start: Recording of real time data to a separate file created to be stored on the user’s computer. • Data Loading Start: Recorded data from a saved “.CSV” file can be loaded to create an LGMV session. Figure 99: MV Control Indoor Units Screen 6.
Electrical Wiring Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual LG SIMS - Self Diagnosis Functions The SIMs WLAN module and the smart phone app together provide monitoring and troubleshooting capability for LG Duct Free Systems. SIMs functions only with LG Duct Free products (Figure 101). SIMs can display and graph operational data for the air conditioner system including the indoor unit and the outdoor unit.
Electrical Wiring LG SIMS - Self Diagnosis Functions SIMs App Screens Outdoor Info/ Component Screen Displays the following information: • Frequency • FAN1 RPM • FAN2 RPM • DC Link • Current • Voltage • EEV Mode • Restart Timer • Comp Mode • EEV Displays the following information: • Frequency • Operation • THM Mode • REM Mode • FAN • EEV • Air Temp • Pipe-in • Pipe-mid • Pipe-out Displays the following information: • Inv TD • Suction • Discharge • Cond Mid • Cond Out • Heatsink • Air Temp Electrical Wiri
TROUBLESHOOTING Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Error Codes Troubleshooting Using Error Codes Refer to Table 32 and Table 33 for error codes that are generated from the indoor and outdoor units. These codes are the most common that will manifest through these units. Your particular model duct free system might generate additional codes not listed here.
TROUBLESHOOTING Error Codes Troubleshooting Using Error Codes - Continued Table 32: Single Zone Wall Mounted Indoor Unit Error Codes - Continued Error Code 21 22 23 25 26 27 DC Peak (IPM Fault); Compressor DC voltage was too high Current Transformer2 (CT2) error; Alternating current (AC) input too high DC Link Low Volt AC Low/High Volt DC Comp Position Error (not providing rotation), Locking PSC Fault; Current to inverter compressor between AC and DC converter circuit too high Inverter compressor DC volt
TROUBLESHOOTING Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Error Codes Single Zone Wall Mounted Outdoor Unit Error Codes The Single Zone Wall Mounted outdoor unit error codes are visible on the outdoor unit, as well as, from the indoor unit. However, the indoor unit error codes are only visible from the indoor unit and will not display at the outdoor unit.
Cautions for Refrigerant Leaks Refrigerant Leaks Cautions for Refrigerant Leaks / Introduction ASHRAE Standards 15-2010 and 34-2010 offer guidelines that address refrigerant safety and the maximum allowable concentration of refrigerant in an occupied space. Refrigerant will dissipate into the atmosphere, but a certain volume of air is required for this to occur safely. For R410A refrigerant, the maximum allowable concentration is 0.026 lbs./ft3 per 1,000 ft3 of air in an occupied space.
Installation CHECKLIST Single Zone High Efficiency, Standard, Extended Pipe and Mega Wall Mount Installation Manual Major Component Rough-In Page 1 Description Single Zone unit was connected properly per local code and the product installation procedures. All literature and bagged accessories have been removed from the fan discharge. Indoor unit was installed, properly supported, and located indoors in a non-corrosive environment.
Installation CHECKLIST Page 2 Condensate Pump / Drain Installation Power Wire and Communications Cables Description Power wiring was connected to a single phase 208-230V source. Ground wire was installed and properly terminated at the unit. The power supplied was clean with voltage fluctuations within specifications. (±10% of nameplate). Power wiring to the Single Zone outdoor unit was installed per all local electrical code requirements.
20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics U.S.A., Inc. Commercial Air Conditioning Division 11405 Old Roswell Road Alpharetta, Georgia 30009 www.lghvac.com LG Customer Information Center, Commercial Products 1-888-865-3026 USA Follow the prompts for commercial A/C products. IM-WallMounted-All-08-14.
