Installation Manual

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Table Of Contents

SINGLE ZONE HIGH EFFICIENCY

STANDARD WALL MOUNT

INSTALLATION MANUAL

Models:

LS090HSV5

LS120HSV5

LS180HSV5

Summary of content (70 pages)

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SINGLE ZONE HIGH EFFICIENCY STANDARD WALL MOUNT INSTALLATION MANUAL Models: LS090HSV5 LS120HSV5 LS180HSV5
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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. Do not throw away, destroy, or lose this manual. Please read carefully and store in a safe place for future reference. Content familiarity required for proper installation.
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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 DANGER This symbol indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
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SAFETY INSTRUCTIONS 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO INSTALLATION - CONTINUED If the air conditioner is installed in a small space, take measures to prevent the refrigerant concentration from exceeding safety limits in the event of a refrigerant leak. Consult the latest edition of ASHRAE (American Society of Heating, Refrigerating, and Air Conditioning Engineers) Standard 15.
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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. 7XUQ WKH SRZHU Rႇ DW WKH QHDUHVW GLVFRQQHFW EHIRUH VHUYLFLQJ the equipment. Electrical shock can cause physical injury or death. Properly size all circuit breakers or fuses. 7KHUH LV ULVN RI ¿UH HOHFWULF VKRFN H[SORVLRQ SK\VLFDO LQMXU\ RU GHDWK Always g
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SAFETY INSTRUCTIONS OPERATION 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Periodically verify that the hardware securing the unit has not deteriorated. 'R QRW SURYLGH SRZHU WR RU RSHUDWH WKH XQLW LI LW LV ÀRRGed or submerged. If the unit falls from its installed location, it can cause property damage, product failure, physical injury or death. 7KHUH LV ULVN RI ¿UH HOHFWULF VKRFN SK\VLFDO LQMXU\ RU GHDWK If gas leaks out, ventilate the area before operating the unit.
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TABLE OF CONTENTS Safety Instructions ............................................................................. 3-6 General Data ..................................................................................... 8-11 Unit Nomenclature ............................................................................... 8 Parts .................................................................................................... 9 6SHFL¿FDWLRQV ................................................................
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GENERAL DATA Unit Nomenclature Indoor Units and Outdoor Units 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO L S N 180 H L = LG Frame Type: A: Art Cool™ S: Standard C: Four-Way Ceiling-Cassette D: Ceiling-Concealed Duct (Low Static) H: Ceiling-Concealed Duct (High Static) V: Vertical-Horizontal Air Handling N: Indoor Unit: U: Outdoor Unit No N or U: System Capacity (Mbh) 9=9 12 = 12 18 = 18 24 = 24 36 = 36 42 = 42 48 = 48 System Type: H = Heat Pump Style: SV = High Efficiency
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GENERAL DATA Parts Required Tools (field provided) • • • • Level Screwdriver Electrical lineman pliers Electric drill • • • • Hole saw Drill Flaring tool set Tubing cutter • • • • Tube/pipe reamer Torque wrenches Allen wrench Gas-leak detector • • • • Thermometer Measuring tape Multimeter Ammeter Required Parts (field provided) • Connecting cable (power and control) • Pipes - vapor line and liquid line, with insulation • Insulated drain hose • Additional drain hose Included Parts Quantity Instal
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GENERAL DATA 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO 6SHFL¿FDWLRQV Table 1: Single Zone High Ef¿ciency Standard Wall Mount System Speci¿cations. LS090HSV5 LS120HSV5 LS180HSV5 System Model Number (IDU/ODU) (LSN090HSV5/LSU090HSV5) (LSN120HSV5/LSU120HSV5) (LSN180HSV5/LSU180HSV5) Cooling Capacity (Min/Rated/Max) (Btu/h) 1,023 ~ 9,000 ~ 12,625 1,023 ~ 12,000 ~ 13,785 3,070 ~ 18,000 ~ 29,515 0.20 ~ 0.62 ~ 0.87 0.20 ~ 0.96 ~ 1.35 0.30 ~ 1.43 ~ 2.
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GENERAL DATA Electrical Table 2: Single Zone High Ef¿ciency Standard Wall Mount System Electrical Data. Nominal Tons Unit Model No. 3/4 1 1-1/2 LS090HSV5 LS120HSV5 LS180HSV5 Compressor Motor Voltage RLA Outdoor Fan Motor Compressor Hertz Voltage Range MCA MOP Quantity (Min. to Max.) Cooling Heating kW FLA 10.0 15.0 1 7.0 7.0 0.043 0.4 10.0 15.0 1 7.0 7.0 0.043 0.4 60 208 - 230 187 - 253 13.0 20.0 1 9.6 9.6 0.124 0.25 Voltage tolerance is ±10%. Maximum allowable voltage unbalance is 2%.
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GENERAL INSTALLATION GUIDELINES Outdoor Unit Location Selection Selecting the Best Location for the Outdoor Unit DANGER 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO • 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.
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GENERAL INSTALLATION GUIDELINES Outdoor Unit Location Selection 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 water from defrost cycle 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.
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GENERAL INSTALLATION GUIDELINES Outdoor Unit Location Selection Oceanside Applications Figure 2: Oceanside Placement Using Windbreak. Use of a Windbreak to Shield from Sea Wind 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Windbreak Ocean winds will cause corrosion, particularly on the condenser and HYDSRUDWRU ¿QV ZKLFK LQ WXUQ FRXOG FDXVH SURGXFW PDOIXQFWLRQ RU LQHI¿cient performance.
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GENERAL INSTALLATION GUIDELINES Required Outdoor Unit Clearances Minimum Clearance Requirements for Single Fan Outdoor Units 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. Specific clearance requirements in the diagram below are for single fan outdoor units.
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GENERAL INSTALLATION GUIDELINES Rigging and Lifting / Outdoor Unit Mounting Rigging and Lifting Instructions 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Wear protective gloves and safety goggles when handling equipment. Sharp edges will cause personal injury. Dispose of the packing materials safely. • Packing materials, such as nails and other metal or wooden parts, will cause puncture wounds or other injuries.
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GENERAL INSTALLATION GUIDELINES Outdoor Unit Mounting Concrete Platform Specifications • Concrete foundations must be made of one part cement, two parts sand, and four parts gravel. • The surface of the foundation must be finished with mortar with rounded edges, and weatherproofed. Figure 6: Example of Using an Insert for a Hole in a Reinforced Concrete Beam. Figure 7: Close up of Bolt Attachment.
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GENERAL INSTALLATION GUIDELINES Required Indoor Unit Clearances 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Follow required best practices when choosing an indoor location for the single zone indoor unit. Figure 10: Single Zone High Ef¿ciency Standard Wall Mount Indoor Unit Clearance Requirements. More than 4 inches Dos • Follow the table at right for minimum clearance of indoor unit from the top of the unit to the ceiling.
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GENERAL INSTALLATION GUIDELINES Indoor Unit Mounting Drilling the Piping Hole in the Wall Figure 12: Drilling Piping Hole. WALL Follow all piping clearance recommendations. 1. Using a 2-9/16 inch hole core drill bit, drill a hole at either the right or left side of the wall mounting, pre-chosen following installation guidelines and application needs. • The slant of the hole must be 3/16” to 5/16” from level with the slant being upward on the indoor unit side and downward on the outdoor unit side. 2.
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GENERAL INSTALLATION GUIDELINES Indoor Unit Mounting 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Removing the Indoor Unit Bottom Cover To access the indoor unit piping port connections, terminal block, and to make the indoor unit installation procedure easier, it is recommended that the bottom cover be removed first. 1. Unsnap the bottom cover at its top left and right sides (Location 1). 2.
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GENERAL INSTALLATION GUIDELINES Indoor Unit Mounting Mounting the Indoor Unit to the Installation Plate 1. Position the indoor unit onto the upper portion of the installation plate. Figure 21: Attaching the Indoor Unit to the Installation Plate. 2. Engage the hooks at the top of the indoor unit with the upper edge of the installation plate (number of hooks depends on model type). 3. Ensure the hooks are properly seated on the installation plate by shaking the indoor unit left and right.
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GENERAL INSTALLATION GUIDELINES Indoor Unit Mounting 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO 3UHSDULQJ IRU 3LSLQJ (OHFWULFDO &RQQHFWLRQV 1. To prepare the indoor unit for piping and electrical installation, disengage bottom on indoor unit from installation plate by reversing Steps 6, 5, and 4 from the previous procedure, if those procedures have been performed. 2. Unsnap the piping / drain hose holder (L-bracket) out from the indoor unit chassis.
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5()5,*(5$17 6$)(7< 67$1'$5'6 DEVICE CONNECTION LIMITATIONS Refrigerant Safety Standards ASHRAE Standards 15-2010 and 34-2010 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 to safely dissipate the refrigerant. For R410A refrigerant, the maximum allowable concentration of refrigerant is 26 lbs.
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SELECTING FIELD SUPPLIED PIPING Selecting Field-Supplied Copper Piping 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Always follow local codes when selecting and installing copper pipe and piping system components. Approved piping for use with LG Single Zone products will be marked “R410 RATED” along the length of the pipe. Piping wall thickness must meet local code requirements and be approved for a maximum operating pressure of 551 psi.
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COPPER EXPANSION AND CONTRACTION Copper Expansion and Contraction Under normal operating conditions, the vapor pipe temperature of a Duct Free System can vary as much as 280°F. With this large variance in pipe temperature, the designer must consider pipe expansion and contraction to avoid pipe and fitting fatigue failures. If the pipe is mounted in free air space, no natural restriction to movement is present if mounting clamps are properly spaced and installed.
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COPPER EXPANSION AND CONTRACTION 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Table 11: Linear Thermal Expansion of Copper Tubing in Inches. Pipe Length1 10 20 30 40 50 60 70 80 90 100 120 140 160 180 1 35° 0.04 0.08 0.12 0.16 0.20 0.24 0.28 0.32 0.36 0.40 0.48 0.56 0.64 0.72 40° 0.04 0.08 0.12 0.16 0.20 0.24 0.28 0.32 0.36 0.40 0.48 0.56 0.64 0.72 45° 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60 0.70 0.80 0.90 50° 0.06 0.12 0.18 0.24 0.30 0.36 0.42 0.48 0.54 0.60 0.
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PIPING HANDLING Piping Materials and Handling Keep Pipes Capped While Storing. Pipes used for the refrigerant piping system must include the specified thickness, and the interior must be clean. While handling and storing, do not bend or damage the pipes, and take care not to contaminate the interior with dust, moisture, etc. Keep refrigerant pipe dry, clean, and airtight. Moisture Possible - Significant hydrolysis of refrigerant oil. Problems - Refrigerant oil degradation.
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REFRIGERANT SYSTEM ENGINEERING 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Proper system operation depends on the installer using utmost care while assembling the piping system. The following pages are an overview of best practices when installing the refrigerant piping system. LG Electronics U.S.A.,Inc.
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REFRIGERANT SYSTEM ENGINEERING Obstacles Figure 28: Installing Piping Above and Below an Obstacle. 3X MINIMUM X X 3X MINIMUM Above an obstacle Below an obstacle Pipe Supports Figure 29: Pipe Hanger Details. A properly installed pipe system must be adequately supported to avoid pipe sagging. Sagging pipes become oil traps that lead to equipment malfunction. Pipe supports must never touch the pipe wall; supports must be installed outside (around) the primary pipe insulation jacket.
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REFRIGERANT SYSTEM ENGINEERING Pipe Sleeves at Penetrations 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO 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.
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FLARING AND BRAZING PROCEDURES Flaring and Brazing Procedures One of the main causes of refrigerant leaks is a defective connection. For LG HVAC systems, the installer needs to know how perform both flared and brazed connections successfully. • During installation, it is imperative to keep the piping system free of contaminants and debris such as copper burrs, slag, or carbon dust. Do not use kinked pipe caused by excessive bending in one specific area on its length. • Flaring Procedure 1.
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FLARING AND BRAZING PROCEDURES 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Tightening the Flare Nuts Tightening Torque for Flare Nuts. Pipe Size (in. O.D.) Outside Diameter (mm) Tightening Torque (ft-lbs.) 13.0 - 18.0 1/4 6.35 9.52 24.6 - 30.4 3/8 39.8 - 47.7 1/2 12.7 45.4 - 59.3 15.88 5/8 71.5 - 87.5 19.05 3/4 1. When connecting the flare nuts, coat the flare (outside only) with polyvinyl ether (PVE) refrigeration oil only.
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REFRIGERANT PIPING CONNECTIONS Installation Overview Installation Figure 34: Installation and Piping Connection Overview. Single Zone Wall-Mounted systems are one-to-one systems. There is a direct piping connection between the outdoor unit and the indoor unit. The figure at right illustrates the basic pipe connections between the outdoor and indoor unit. Refer to the illustration when proceeding with pipe connections.
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REFRIGERANT PIPING CONNECTIONS Special Applications Special Applications Figure 35: Special Applications. 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO If an additional drain hose is necessary, the end of drain outlet must be routed above the ground. Secure the drain hose appropriately. When the Outdoor Unit is Installed Below the Indoor Unit: 1.
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REFRIGERANT PIPING CONNECTIONS Outdoor Unit Connections Outdoor Unit Connections 1. Remove the piping cover or piping / control box cover (configuration depends on outdoor unit model) from the unit by loosening the fastening screws. 2. Align the center of the refrigerant piping and corresponding connection as shown. 3. Refer to the figures at right for liquid and gas (vapor) piping attachments onto the outdoor unit. 4.
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REFRIGERANT PIPING CONNECTIONS Indoor Unit Connections 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Removing the Indoor Unit Bottom Cover To access the indoor unit piping port connections, and to make the indoor unit installation procedure easier, it is recommended that the bottom cover be removed first. 1. Unsnap the bottom cover at its top left and right sides (Location 1). Figure 44: Removing the Bottom Cover. Figure 45: Removing the Bottom Cover, Alternate View. 2.
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REFRIGERANT PIPING CONNECTIONS Indoor Unit Connections • Do not bend the piping directly backwards or to the left or right sides without bending it downward first; this will damage the indoor unit piping. • Do not forcibly press the refrigerant piping onto the bottom frame or the front grille; this will damage the indoor unit piping and / or indoor unit frame. • Ensure the piping is straight. Do not kink the piping; this will damage the indoor unit and piping.
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REFRIGERANT PIPING CONNECTIONS Indoor Unit Connections Piping Installation When Piping is on the Right Side Figure 49: Piping Installation When Piping is on the Right Side. Right Side Piping 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO See the Electrical System Installation section for information on how to connect the communication / connection (power) wiring from the outdoor unit. 1. Align the center of the refrigerant piping and corresponding connection as shown. 2.
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REFRIGERANT PIPING CONNECTIONS Outdoor Unit Drain Piping / Indoor Unit Drain Hose Outdoor Unit Condensate Drain Piping Installation Depending on the installation location, it could be necessary to install factory-supplied drain plug(s).See pages 12 to 15 for information in reference to outdoor unit placement. Figure 54: LSU090-120HSV5 Drain Component Locations. LSU090-120HSV5 Drain Connection Drain Cap Ensure drain piping is insulated.
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REFRIGERANT PIPING CONNECTIONS 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Indoor Unit Drain Hose • Insert the drain hose >2 inches so it won’t pull out of the field-supplied drain pipe. • Avoid piping the drain hose as shown in the diagrams in the figure below. These methods are incorrect and can cause leaks at the indoor unit site. Figure 56: Inserting the Drain Hose >2 inches Into the Field-Supplied Drain Pipe.
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REFRIGERANT PIPING CONNECTIONS Indoor Unit Drain Hose Checking the Indoor Unit Drain Hose for Leaks Figure 59: Checking for Leaks at the Indoor Unit. 1. Pour a glass of water on the evaporator. 2. Verify that the water flows appropriately through and out of the drain hose without any leaks.
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INSULATION Refrigerant Piping System Insulation 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO )RU LQIRUPDWLRQ UHJDUGLQJ LQVXODWLRQ IRU XQGHUJURXQG RU SHQHWUDWLRQ VLWXDWLRQV VHH WKH ³*HQHUDO 5HIULJHUDQW 3LSLQJ 6\VWHP ,QIRUPDWLRQ´ VHFWLRQ All refrigerant piping from the outdoor unit to the indoor units must be insulated correctly for safety and usage.
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INSULATION Minimum Refrigerant Pipe Ethylene Propylene Diene Methylene (EPDM) Insulation Wall Thickness Requirements • Do not insulate gas and liquid pipes together as this can result in pipe leakage and malfunction due to extreme temperature fluctuations. • Always properly insulate the piping. Insufficient insulation will result in condensation, reduced heating/cooling performance, etc. Also, if the pipes aren’t insulated properly, condensation could potentially cause damage to building finishes.
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ELECTRICAL SYSTEM INSTALLATION 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO 6DIHW\ *XLGHOLQHV &RQQHFWLRQV DQG 6SHFL¿FDWLRQV • All power wiring and communication cable installation must be performed by trained service providers working in accordance with local, state, and National Electrical Code (NEC) / UL / ETL federal regulations related to electrical equipment and wiring, and following the manufacturer product diagrams, requirements, and instructions in this manual.
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ELECTRICAL SYSTEM INSTALLATION &RQQHFWLRQV DQG 6SHFL¿FDWLRQV 3RZHU :LULQJ &RPPXQLFDWLRQ &DEOH &RQQHFWLRQV FRQWLQXHG WARNING Ring Terminal Figure 68: Tightening the Ring Terminal to the Terminal Plate. Electrical System Installation 1. Remove the JIS terminal screws from the (outdoor unit or indoor unit) terminal plate with a JIS screwdriver. (See information about LG terminal connections below.) 2.
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ELECTRICAL SYSTEM INSTALLATION &RQQHFWLRQV DQG 6SHFL¿FDWLRQV 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO 3RZHU 6XSSO\ 3RZHU :LULQJ 6SHFLILFDWLRQV • LG Single Zone systems operate at 1Ø, 208-230V, 60Hz. Figure 72: Single Zone Outdoor Unit Power Wiring Diagram. • Power wiring / power wiring gauge to the outdoor unit(s) must be " 1/8 ± solid or stranded, and must comply with all National Electrical " 6 7/1 Code (NEC), UL, and local electrical codes.
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ELECTRICAL SYSTEM INSTALLATION &RQQHFWLRQV DQG 6SHFL¿FDWLRQV &RPPXQLFDWLRQ &RQQHFWLRQ 3RZHU &DEOH 6SHFLILFDWLRQV IURP 2XWGRRU Unit to Indoor Unit All power wiring and communication cable installation must be performed by trained service providers working in accordance with local, state, and National Electrical Code (NEC) / UL / ETL federal regulations related to electrical equipment and wiring, and following the manufacturer product diagrams, requirements, and instructions in this manual.
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ELECTRICAL SYSTEM INSTALLATION Connections and Specifications Single Zone High Efficiency Standard Wall Mount Installation Manual Figure 77: Typical LS180HSV5 Power / Communication System Diagram For Wiring Lengths Up to 130 Feet. Figure 78: LS180HSV5 Power / Communication System Diagram For Wiring Lengths GREATER THAN 130 Feet. Figure 79: Schematic of a Single Zone System When the Wiring is GREATER THAN 130 Feet.
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ELECTRICAL SYSTEM INSTALLATION Controller Options Controller Options Figure 82: Example of a Wireless Handheld Remote Single Zone High Efficiency Standard Wall Mount systems include a wireless handheld remote controller Controller. Buttons will differ (Model No. AKB74955602), but optional LG-suppled wired controllers are available. See “Functions, Controls, depending on model type. Options” in the Engineering Manual, or contact an LG representative for more information.
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ELECTRICAL SYSTEM INSTALLATION Indoor Unit Electrical Connections 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Connecting Indoor Unit Electrical Wiring • Verify that main power to the unit is completely off before proceeding with these steps as there is a risk of electrical shock, bodily injury, and / or death. • Follow all safety and warning information outlined at the beginning and throughout this manual. Failure to do so will cause electrical shock, bodily injury, and / or death.
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ELECTRICAL SYSTEM INSTALLATION Indoor Unit Electrical Connections Connecting Indoor Unit Electrical Wiring, continued. 7. Choice of the cable path out of the indoor unit and to the outdoor unit depends on refrigerant piping / drain hose installation: left side piping, following back of indoor unit; right side piping, through the knockout hole; or rear piping. Figure 88: Cable / Refrigerant Piping / Drain Hose Installation Options.
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ELECTRICAL SYSTEM INSTALLATION Outdoor Unit Electrical Connections 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Connecting Outdoor Unit Wiring • Verify that main power is completely off and that no power is going through the Single Zone system before proceeding with these steps. Follow all safety and warning information outlined at the beginning of this manual. Failure to do so will cause electric shock, bodily injury and / or death.
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ELECTRICAL SYSTEM INSTALLATION Outdoor Unit Electrical Connections Connecting Outdoor Unit Wiring, continued. Figure 93: Example of Conduit. Do not install power wiring to the outdoor unit and the communication / connection (power) cable to the indoor unit in the same conduit. Use separate conduits. Communication problems will occur. LSU090-120HSV5 LSU180HSV5 Figure 92: Outdoor Unit Electrical Connections.
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FINAL INSTALLATION PROCEDURES Triple Leak / Pressure Test 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO 7ULSOH /HDN 3UHVVXUH 7HVW After the refrigerant piping installation is complete, perform a triple leak / pressure test. Triple leak / pressure test is performed between the outdoor unit and indoor unit to verify that refrigerant can flow through the system without danger of leaks or pressure losses.
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FINAL INSTALLATION PROCEDURES Triple Leak / Pressure and Deep Evacuation Tests Triple Leak / Pressure Check Procedure, continued. 7. If the pressure does NOT drop for one (1) hour, the system passes the test. 8. If the pressure drops, there is a leak and it must be found. Remove the bubble solution with a clean cloth, repair the leak(s), and perform the leak / pressure check again. 9.
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FINAL INSTALLATION PROCEDURES Deep Evacuation and Triple Evacuation Tests Deep Evacuation Procedure, continued. Figure 78: Evacuation Procedure Diagram. Indoor Unit 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO 3. Evacuate to static micron level 500 for at least one (1) hour. 4. Micron level must remain 500 for two (2) hours. If the vacuum gauge rises and stops, the system may contain moisture; therefore, it will be necessary to repeat the steps of vacuum break and drying.
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FINAL INSTALLATION PROCEDURES Triple Evacuation Test Triple Evacuation Procedure Steps 1. If this procedure is performed shortly after the leak / pressure test, the cap and core on the gas (vapor) suction Schrader port must have already been removed, and the manifold must already be connected. If the procedure was not performed shortly after the leak / pressure test, make sure to remove the cap and core on the gas (vapor) suction Schrader port.
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FINAL INSTALLATION PROCEDURES Refrigerant Trim Charge, Finishing the Job 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Refrigerant Trim Charge The single zone system will need an additional refrigerant charge if the installed piping lengths are greater than the “piping length (no additional refrigerant, ft.) specification” listed in the product tables. See the product sections in the engineering and installation manuals.
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FINAL INSTALLATION PROCEDURES Reattaching the Indoor Unit Bottom Cover Reattaching the Indoor Unit Bottom Cover Reattach the indoor unit bottom cover after all other installation procedures are complete. Figure 79: Close Up of Bottom Cover Connections (Appearances Will Vary Depending on Indoor Unit Model). Top Snaps 1. If ON, shut power OFF to the system. C-Hooks 2.
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FINAL INSTALLATION PROCEDURES Air Filter Disassembly and Assembly Figure 84: Disassembling the Air Filter (Appearances Will Vary Depending on Indoor Unit Model). Air Filter Disassembly and Assembly Air Filter Disassembly 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO 1. Turn power off to the system. 2. Lifting the Air Filter by the Handles. 2. Find the handles located at the top-front of the air filter molded into the plastic frame support. 3.
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FINAL INSTALLATION PROCEDURES Installing Batteries, Test Run, Performance Evaluation Installing Batteries into the Handheld Remote Controller Figure 86: Installing the Remote Controller Batteries. For information on using the handheld remote controller, refer to its owner’s manual. 1. The remote controller needs two AAA (1.5V) batteries for operation. Remove the battery cover from the back of the remote controller by pushing the tab down in the direction seen at right. Battery Cover Tab Battery Cover 2.
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FINAL INSTALLATION PROCEDURES Installer Mode, Heating Only Mode Installer Mode 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO It will be necessary to switch to Installer mode if the system needs to operate in Heating Only or Cooling Only modes, or the Pump Down procedure needs to be performed. Figure 89: Using the Handheld Controller to Change System to Installer Mode. To Enter Installer Mode: 1. Press the Reset and “A” buttons.
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FINAL INSTALLATION PROCEDURES Cooling Only Mode, Pump Down Procedure Enabling Cooling Only Mode Disabling Cooling Only Mode Before running the Pump Down procedure, the unit must be switched to Cooling Only mode. To be able to run Cooling Only mode, the unit must be changed to Installer mode (see previous page for instructions). 1. Supply power to the system, but system must be OFF with all functions inactive. 2. Enter the Installer mode. 3. Set code to 45. 4.
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TROUBLESHOOTING 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO 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 function only with LG Duct Free products. LG SIMs can also be used with Single Zone one-to-one configurations such as the Single Zone Wall Mount systems. SIMs app is available for Apple® iPhone® iOS or Android™ smart phone operating systems.
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TROUBLESHOOTING LG SIMS - Self Diagnosis Functions SIMs App Screens Outdoor Info/ Component Screen Outdoor Info/ Temperature 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: • Inv TD • Suction • Discharge • Cond Mid • Cond Out • Heatsink • Air Temp Graph Info Tab Displays the following information: • Frequency • Operation • THM Mode • REM Mode • FAN • EEV • Air Tem
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TROUBLESHOOTING Error Codes Troubleshooting Using Error Codes 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO Refer to the table below and on the next two pages for error codes that are generated from the indoor and outdoor units. These codes are the most common. Your particular system might generate additional codes not listed here. Please contact LG Support if you see these types of errors and a simple power cycle has not corrected the issue.
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TROUBLESHOOTING 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. When troubleshooting the system, be sure to verify if the error codes that are being displayed are specific for indoor or outdoor units.
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CAUTIONS FOR REFRIGERANT LEAKS 6LQJOH =RQH +LJK (ႈFLHQF\ 6WDQGDUG :DOO 0RXQW ,QVWDOODWLRQ 0DQXDO &DXWLRQV IRU 5HIULJHUDQW /HDNV ,QWURGXFWLRQ 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.
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Major Component Rough-In Description INSTALLATION CHECKLIST Single Zone outdoor 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.
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20001747 ISO 9001: 2008 LG ELECTRONICS INC. For further technical materials such as submittals, engineering manuals, service manuals, and catalogs, visit www.lghvac.com. LG Customer Information Center, Commercial Products 1-888-865-3026 USA Follow the prompts for commercial A/C products. LG Electronics, U.S.A., Inc. Air Conditioning Technologies 4300 North Point Parkway Alpharetta, Georgia 30022 www.lghvac.