SINGLE ZONE ART COOL PREMIER WALL MOUNTED INSTALLATION MANUAL 3/4 and 1 Tons 1-1/4, 1-1/2 and 2 Tons LA090HYV3, LA120HYV3 LA150HYV3, LA180HYV3, LA240HYV3
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.
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.
SAFETY INSTRUCTIONS INSTALLATION - CONTINUED Single Zone Art Cool Premier Wall Mounted Installation Manual 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.
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. 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. 7KHUH LV ULVN RI ¿UH HOHFWULF VKRFN H[SORVLRQ SK\VLFDO LQMXU\ RU GHDWK Always g
SAFETY INSTRUCTIONS OPERATION Single Zone Art Cool Premier Wall Mounted Installation Manual Do not provide power to or operate the unit if it is ÀRRGHG RU VXEPHUJHG Periodically verify the equipment mounts have not deteriorated. 7KHUH LV ULVN RI ¿UH HOHFWULF VKRFN SK\VLFDO LQMXU\ RU GHDWK If the unit falls from its installed location, it can cause physical injury or death. Use a dedicated power source for this product. If gas leaks out, ventilate the area before operating the unit.
TABLE OF CONTENTS Safety Instructions ............................................................................. 3-6 General Data ..................................................................................... 8-12 Unit Nomenclature ............................................................................... 8 Parts .................................................................................................... 9 6SHFL¿FDWLRQV ................................................................
GENERAL DATA Unit Nomenclature Single Zone Wall Mount Indoor and Outdoor Units Single Zone Art Cool Premier Wall Mounted Installation Manual LA N 090 Family LA= Art Cool Premier/Gallery/Mirror Type N = Indoor Wall Mount Unit U = Outdoor Heat Pump Unit Nominal Capacity (Nominal cooling capacity in Btu/h) 090 = 9,000 120 = 12,000 150 = 15,000 180 = 18,000 240 = 24,000 Indoor / Outdoor Product HYV = Art Cool Premier Generation or Revision 1 = First 2 = Second 3 = Third 8 Due to our policy of continuo
GENERAL DATA Parts Required Parts (field provided) • Connecting cable (power and control) • Piping - vapor line and liquid line, with insulation • Drain hose extension Included Parts Quantity Installation Plate (Dimensions Will Vary Depending on Model) One (1) Type “A” Screws for Installation Plate Five (5) Type “B” Screws for Wireless Controller Holder Two (2) Type “C” Screws for Frame Two (2) Type “D” Screws for Bracket Two (2) Type “E” Screws for Drain Hose (Optional) One (1) Bracket One
GENERAL DATA 6SHFL¿FDWLRQV Single Zone Art Cool Premier Wall Mounted Installation Manual Table 1: $UW &RRO 3UHPLHU 8QLW 6SHFL¿FDWLRQV System Model Number (IDU/ODU) Cooling Capacity (Min/Rated/Max) (Btu/h) Cooling Power Input1 (Min/Rated/Max) (kW) Heating Capacity (Min/Rated/Max) (Btu/h) Heating Power Input1 (Min/Rated/Max) (kW) COP Maximum Heating Capacity (Btu/h) Outdoor 17°F (WB)/Indoor 70°F (DB) Outdoor 5°F (WB)/Indoor 70°F (DB) Outdoor -13°F (WB)/Indoor 70°F (DB) EER SEER HSPF Power Supply (V/Hz/Ø)
GENERAL DATA 6SHFL¿FDWLRQV 7DEOH $UW &RRO 3UHPLHU 8QLW 6SHFL¿FDWLRQV &RQWLQXHG LA150HYV3 LA180HYV3 LA240HYV3 (LAN150HYV3/LAU150HYV3) (LAN180HYV3/LAU180HYV3) (LAN240HYV3/LAU240HYV3) 3,070 ~ 15,000 ~ 21,000 3,070 ~ 18,000 ~ 29,515 3,070 ~ 22,000 ~ 30,000 0.40 ~ 1.0 ~ 1.73 0.40 ~ 1.25 ~ 2.43 0.40 ~ 1.692 ~ 3.17 3,070 ~ 18,000 ~ 25,200 3,070 ~ 21,600 ~ 32,000 3,070 ~ 26,000 ~ 36,200 0.55 ~ 1.125 ~ 1.99 0.66 ~ 1.543 ~ 2.71 0.66 ~ 2.08 ~ 3.24 4.69 4.10 3.66 21,430 (119%) 18,950 (105%) 14,660 (81%) 15.
GENERAL DATA Electrical Table 2: Art Cool Premier Electrical Data Single Zone Art Cool Premier Wall Mounted Installation Manual Nominal Unit Model Hertz Voltage Voltage Range MCA MOP Compressor Tons Number (Min. to Max.) Qty. Outdoor Fan Motor Indoor Fan Motor Cooling Heating W FLA W FLA 3/4 LA090HYV3 11.2 15 1 8.3 8.3 85 0.4 58 0.4 1 LA120HYV3 11.2 15 1 8.3 8.3 85 0.4 58 0.4 1-1/4 LA150HYV3 19.0 30 1 14.41 14.41 124 0.4 58 0.5 1-1/2 LA180HYV3 19.0 30 1 14.
GENERAL INSTALLATION GUIDELINES Outdoor Unit Location Selection Selecting the Best Location for the Outdoor Unit DANGER • Do not install the unit in an area where combustible gas will generate, flow, stagnate, or leak. These conditions can cause a fire, resulting in bodily injury or death. • Do not install the unit in a location where acidic solution and spray (sulfur) are often used as it can cause bodily injury or death.
GENERAL INSTALLATION GUIDELINES Outdoor Unit Location Selection Planning for Snow and Ice, continued. Single Zone Art Cool Premier Wall Mounted Installation Manual 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.
GENERAL INSTALLATION GUIDELINES Outdoor Unit Location Selection Oceanside Applications Figure 2: Oceanside Placement Using Windbreak. Use of a Windbreak to Shield from Sea Wind Windbreak Ocean winds will cause corrosion, particularly on the condenser and HYDSRUDWRU ¿QV ZKLFK LQ WXUQ FRXOG FDXVH SURGXFW PDOIXQFWLRQ RU LQHI¿FLHQW SHUIRUPDQFH • • • • Additional anti-corrosion treatment will need to be applied to the outdoor unit at oceanside locations.
GENERAL INSTALLATION GUIDELINES Required Outdoor Unit Clearances Single Zone Art Cool Premier Wall Mounted Installation Manual 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.
GENERAL INSTALLATION GUIDELINES Rigging and Lifting / Outdoor Unit Mounting Rigging and Lifting Instructions 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. • Tear apart and throw away plastic packaging bags so that children will not play with them and risk suffocation and death.
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 7: Close up of Bolt Attachment.
GENERAL INSTALLATION GUIDELINES Required Indoor Unit Clearances )ROORZ UHTXLUHG EHVW SUDFWLFHV ZKHQ FKRRVLQJ DQ LQGRRU ORFDWLRQ IRU WKH VLQJOH ]RQH $UW &RRO 3UHPLHU LQGRRU XQLW Figure 11: Single Zone Art Cool Premier Wall Mount Indoor Unit Clearance Requirements. More than 8 inches Do’s Do Not’s • Do not install the unit near a heat or steam source, or where considerable amounts of oil, iron powder, or flour are used.
GENERAL INSTALLATION GUIDELINES Indoor Unit Mounting Mounting the Installation Plate to the Wall :KHQ FKRRVLQJ D ORFDWLRQ IRU WKH ZDOO PRXQW SODWH EH VXUH WR WDNH LQWR FRQVLGHUDWLRQ URXWLQJ RI ZLULQJ IRU SRZHU RXWOHWV ZLWKLQ WKH ZDOO &RQWDFWLQJ wiring can cause serious bodily injury or death. Use caution when drilling holes through the walls for the purposes of piping connections. Power wiring can cause serious bodily injury or death. Select location carefully.
GENERAL INSTALLATION GUIDELINES Indoor Unit Mounting Drilling the Access Hole in the Wall A hole needs to be drilled into the wall to connect the power wiring / communication cable and refrigerant piping (and drain piping) from the indoor unit to the outdoor unit. Follow all piping and wiring clearance requirements. 1. Confirm the location of the indoor unit, and where the piping hole will be placed. HYV3 Art Cool Premier indoor units have a choice of left or right piping. 2.
GENERAL INSTALLATION GUIDELINES Indoor Unit Mounting Single Zone Art Cool Premier Wall Mounted Installation Manual Mounting the Indoor Unit to the Installation Plate 1. Position the indoor unit onto the top portion of the installation plate. 2. Engage the hooks at the top of the indoor unit with the top 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.
REFRIGERANT SAFETY STANDARDS / 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.
SELECTING FIELD SUPPLIED PIPING Selecting Field-Supplied Copper Piping Single Zone Art Cool Premier Wall Mounted Engineering Manual 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.
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.
COPPER EXPANSION AND CONTRACTION Single Zone Art Cool Premier Wall Mounted Engineering Manual 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 0.72 0.
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.
REFRIGERANT SYSTEM ENGINEERING Single Zone Art Cool Premier Wall Mounted Engineering Manual 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.
REFRIGERANT SYSTEM ENGINEERING Obstacles Figure 25: Installing Piping Above and Below an Obstacle. When an obstacle, such as an I-beam or concrete T, is in the path of the planned refrigerant pipe run, it is best practice to route the pipe over the obstacle. If adequate space is not available to route the insulated pipe over the obstacle, then route the pipe under the obstacle.
REFRIGERANT SYSTEM ENGINEERING Pipe Sleeves at Penetrations LG recommends 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. Use 4”+ curved sheet metal saddles between the bottom surface of the pipe and the bottom surface of the penetration.
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.
FLARING AND BRAZING PROCEDURES Single Zone Art Cool Premier Wall Mounted Engineering Manual 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.
REFRIGERANT PIPING CONNECTIONS Installation Overview Installation 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. This illustration shows the indoor unit being installed at a higher position than the outdoor unit.
REFRIGERANT PIPING CONNECTIONS Special Applications Special Applications Single Zone Art Cool Premier Wall Mounted Installation Manual If an additional drain hose is necessary, the end of drain outlet must be routed above the ground. Secure the drain hose appropriately. See pages later in this section for information on indoor unit drain hoses. Figure 32: Special Applications. (For Illustrative Purposes. Appearance and Connection Locations Will Differ Depending On Outdoor Unit Model.
REFRIGERANT PIPING CONNECTIONS Outdoor Unit Connections Outdoor Unit Piping Connections 1. The outdoor unit piping connections are on the side of the unit. Figure 33: LAU090HYV3 / LAU120HYV3 Outdoor Unit Cover Removal. Figure 34: LAU150HYV3 / LAU180HYV3 / LAU240HYV3 Outdoor Unit Piping Connections. • LAU090HYV3 / LAU120HYV3 outdoor units have a side cover that protects the piping connections and the electrical components. This side cover must be removed for piping and electrical connections.
REFRIGERANT PIPING CONNECTIONS Indoor Unit Connections Single Zone Art Cool Premier Wall Mounted Installation Manual Removing the Indoor Unit Bottom Panel To access the indoor unit piping port connections, and to make the indoor unit installation procedure easier, open the front panel, and remove the bottom panel first. 1. Fully open the front panel. Figure 37: Position of the Bottom Panel Connection Points. 2.
REFRIGERANT PIPING CONNECTIONS Indoor Unit Connections Connecting the Indoor Unit Refrigerant Piping Figure 44: Releasing the Piping Holder. 1. Ensure there is enough working space between the indoor unit and the installation plate by using the piping holder as a space holder. 2. Remove the flare nuts attached to the indoor unit piping. To remove, hold onto the piping with an adjustable wrench, and then loosen the flare nut with a torque wrench. 3. Thread the flare nuts onto the field-supplied piping. 4.
REFRIGERANT PIPING CONNECTIONS Indoor Unit Connections Single Zone Art Cool Premier Wall Mounted Installation Manual Using a Conduit for Indoor Unit Wiring / Cable Installation Figure 47: Liquidtight 3/4 Inch Elbow Connector Attached to Flexible Conduit. • 8VH D OLTXLGWLJKW LQFK HOERZ FRQQHFWRU IRU IOH[LEOH FRQGXLW WR SURWHFW WKH FRPPXQLFDWLRQ FRQnection (power) cable. The conduit can be positioned in the desired direction.
REFRIGERANT PIPING CONNECTIONS Indoor Unit Connections Piping Installation When Piping is on the Left Side Figure 50: Piping Installation When Piping is on the Left Side (Appearances Will Vary Depending on Indoor Unit Model). Left Side Piping • See the Electrical System Installation section for information on how to connect the communication / connection (power) cable from the outdoor unit.
REFRIGERANT PIPING CONNECTIONS Indoor Unit Connections Piping Installation When Piping is on the Right Side Figure 51: Piping Installation When Piping is on the Right Side (Appearances Will Vary Depending on Indoor Unit Model). Right Side Piping Single Zone Art Cool Premier Wall Mounted Installation Manual See the Electrical System Installation section for information on how to connect the communication / connection (power) wiring from the outdoor unit. 1.
REFRIGERANT PIPING CONNECTIONS Outdoor Unit Condensate 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 13 to 16 for information in reference to outdoor unit placement. Figure 52: LAU150HYV3 / LAU180HYV3 / LAU240HYV3 Outdoor Unit Drain Connection Components. Drain Plug Drain Cap Do not use the drain hose on the outdoor unit In locations where it can drop below freezing.
REFRIGERANT PIPING CONNECTIONS Indoor Unit Condensate Drain Hose Indoor Unit Condensate Drain Hose Installation Single Zone Art Cool Premier Wall Mounted Installation Manual Figure 54: Indoor Unit Drain Hose Connection Locations. Refer to the diagrams and follow proper installation and the position of the drain hose along the refrigerant piping installation path to avoid leaks.
REFRIGERANT PIPING CONNECTIONS Indoor Unit Condensate Drain Hose Incorrect Slope Angles for the Drain Hose Avoid installing the drain hose as shown in the diagrams below. These methods are incorrect and can cause leaks at the indoor unit site. Figure 57: Incorrect Slope Angles for the Drain Hose.
REFRIGERANT PIPING CONNECTIONS Indoor Unit Condensate Drain Hose Figure 58: Connecting the Extension Drain Hose to the Indoor Unit Drain Hose.
REFRIGERANT PIPING CONNECTIONS Indoor Unit Condensate Drain Hose Checking the Indoor Unit Drain Hose for Leaks Figure 63: Removing the Indoor Unit Filter. 1. Remove the indoor unit filter by pulling it up and out towards you. 'R QRW WRXFK WKH PHWDO SDUW RI WKH LQGRRU XQLW ZKHQ UHPRYLQJ WKH ¿OWHU 'RLQJ VR ZLOO FDXVH FXWV physical injury. 2. Pour a glass of water on the back of the evaporator. 3.
REFRIGERANT PIPING CONNECTIONS Bundling Bundling If a conduit or piping set cover is not used on the connection from the outdoor unit to the interior, bundle both separately insulated refrigerant pipes, the drain hose, and outdoor unit to indoor unit communication / connection (power) cable together with wide vinyl tape. 1. Both piping must be fully and separately encased in insulation material: Overlap the field installation piping insulation material and the indoor unit piping insulation material.
INSULATION Refrigerant Piping System Insulation For information regarding insulation for underground or penetration situations, see the “General Refrigerant Piping System Information” section. All refrigerant piping from the outdoor unit to the indoor units must be insulated correctly for safety and usage.
INSULATION Single Zone Art Cool Premier Wall Mounted Installation Manual Minimum Refrigerant Pipe Ethylene Propylene Diene Methylene (EPDM) Insulation Wall Thickness Requirements • 'R QRW LQVXODWH JDV DQG OLTXLG SLSHV WRJHWKHU DV WKLV FDQ UHVXOW LQ SLSH OHDNDJH DQG PDOIXQFWLRQ GXH WR H[WUHPH WHPSHUDWXUH IOXFWXDWLRQV • Always properly insulate the piping. Insufficient insulation will result in condensation, reduced heating/cooling performance, etc.
ELECTRICAL SYSTEM INSTALLATION 6DIHW\ *XLGHOLQHV &RQQHFWLRQV DQG 6SHFL¿FDWLRQV • 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. Improperly connected ground wire can cause communication problems from electrical noise, and motor current leakage. Ground wiring must always be installed by a trained technician.
ELECTRICAL SYSTEM INSTALLATION &RQQHFWLRQV DQG 6SHFL¿FDWLRQV Power Wiring / Communication Cable Connections, continued 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. Position the ring terminal around the terminal, place the terminal screw in the ring, and tighten to the terminal plate using a JIS screwdriver.
ELECTRICAL SYSTEM INSTALLATION &RQQHFWLRQV DQG 6SHFL¿FDWLRQV Power Supply / Power Wiring Specifications 5HIHU WR (OHFWULFDO 'DWD WDEOH IRU DPSHUH UDWLQJV 3URSHUO\ VL]H DOO FLUFXLW EUHDNHUV IXVHV ZLULQJ DQG ¿HOG SURYLGHG FRPSRQHQWV SHU ORFDO FRGHV 7KHUH LV ULVN RI ¿UH HOHFWULF VKRFN H[SORVLRQ SK\VLFDO LQMXU\ RU GHDWK • All power wiring installation must be performed by trained service providers working in accordance with local, state, and NEC regulations related to electrical equipment and wiring
ELECTRICAL SYSTEM INSTALLATION &RQQHFWLRQV DQG 6SHFL¿FDWLRQV • For communication / connection (power) wires between the Single Zone outdoor unit and the indoor unit for lengths up to 130 feet, use a minimum 14 gauge, four (4) conductor, stranded, shielded or unshielded wire. If shielded, the wire must be grounded to the chassis at the outdoor unit only.
ELECTRICAL SYSTEM INSTALLATION &RQQHFWLRQV DQG 6SHFL¿FDWLRQV &RQWUROOHU 2SWLRQV Figure 84: Schematic of a Single Zone System When the Wiring is GREATER THAN 130 Feet. Power Flow: L ĺ N Communication Flow: Comm ĺ N 1(L1) (Power, L) 2(L2) (Neutral, N) G (Ground) Power Supply At Least Two (2) Inches 3 (Communications) GREATER THAN 130 feet: Must Separate Communications and Ground (G) Cable from the Power (1[L1]) and Neutral (2[L2]) Cable at Least Two (2) Inches.
ELECTRICAL SYSTEM INSTALLATION ,QGRRU 8QLW (OHFWULFDO &RQQHFWLRQV Single Zone Art Cool Premier Wall Mounted Installation Manual 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.
ELECTRICAL SYSTEM INSTALLATION ,QGRRU 8QLW (OHFWULFDO &RQQHFWLRQV Installing the Indoor Unit Communication / Connection (Power) Cable Figure 91: Example of an Indoor Unit Knockout. The indoor units have knockout access holes for the communication / connection (power) cable, with a choice of left or right side wiring installation. Depending on the installation and application requirements, choose which side to knock out the access hole before applying the steps below.
ELECTRICAL SYSTEM INSTALLATION ,QGRRU 8QLW (OHFWULFDO &RQQHFWLRQV Single Zone Art Cool Premier Wall Mounted Installation Manual Using a Conduit for Indoor Unit Wiring / Cable Installation Figure 97: Liquidtight 3/4 Inch Elbow Connector Attached to Flexible Conduit. • Use a liquidtight 3/4 inch elbow connector for flexible conduit to protect the communication / connection (power) cable. The conduit can be positioned in the desired direction.
ELECTRICAL SYSTEM INSTALLATION ,QGRRU 8QLW (OHFWULFDO &RQQHFWLRQV Cable Installation When Piping is on the Left Side 1. Insert the communication / connection (power) cable through the left access hole, and through the inside of the indoor unit to the terminal block. 2. Connect the communication / connection (power) cable terminals to the terminal block as detailed in “Installing the Indoor Unit Communication / Connection (Power) Cable” on the previous pages. 3.
ELECTRICAL SYSTEM INSTALLATION 2XWGRRU 8QLW (OHFWULFDO &RQQHFWLRQV Single Zone Art Cool Premier Wall Mounted Installation Manual 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. Failure to do so will cause electric shock, bodily injury and / or death • Follow all safety and warning information outlined at the beginning of this manual.
ELECTRICAL SYSTEM INSTALLATION 2XWGRRU 8QLW (OHFWULFDO &RQQHFWLRQV Figure 103: LAU090HYV3 / LAU120HYV3 Outdoor Unit Wiring / Cable Access Holes. Loose wires can cause the wiring to burn out, damaging the outdoor unit. 6. Unscrew the screws to the cable clamps, and then open the cable clamps. There is one cable clamp for the power wiring to the outdoor unit, and one cable clamp for the communication / connection (power) cable to the indoor unit. 7.
FINAL INSTALLATION PROCEDURES Triple Leak / Pressure Test Triple Leak / Pressure Test Single Zone Art Cool Premier Wall Mounted Installation Manual 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.
FINAL INSTALLATION PROCEDURES Triple Leak / Pressure Test / Deep Evacuation Procedure 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.
FINAL INSTALLATION PROCEDURES Deep Evacuation / Triple Evacuation Procedure Deep Evacuation Procedure, continued. Figure 113: Evacuation Procedure Diagram. 2. Connect the gauge manifold along with the vacuum pump to the gas (vapor) suction Schrader port (with core removed) using a vacuum hose. Open the gauge manifold and the vacuum pump valves. Gauge Manifold Single Zone Art Cool Premier Wall Mounted Installation Manual 3. (YDFXDWH WR VWDWLF PLFURQ OHYHO IRU DW OHDVW RQH KRXU 4.
FINAL INSTALLATION PROCEDURES Triple Evacuation Procedure 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.
FINAL INSTALLATION PROCEDURES Refrigerant Trim Charge Single Zone Art Cool Premier Wall Mounted Installation Manual Refrigerant Trim Charge A single zone system could 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.
FINAL INSTALLATION PROCEDURES Finishing the Job / Finalizing Wall-Mounted Installation Finishing the Job After the Triple Leak and Evacuation (and refrigerant trim charge, if any) procedures have been performed, follow the steps below to open the refrigerant lines. 1. Verify that the auxiliary service port is removed (if used in the Evacuation procedure) and the original Schrader core was re-installed on the gas (vapor) suction service port. 2.
FINAL INSTALLATION PROCEDURES Reattaching the Bottom Cover Single Zone Art Cool Premier Wall Mounted Installation Manual Reattaching the Indoor Unit Bottom Panel Figure 120: Positioning the Bottom Panel Connection Points. Figure 121: Reconnecting the Back of the Bottom Panel. 1. Position the bottom panel so its plastic clips align with all of the indoor unit frame connection points. The number and position of the connections vary depending on the model of the indoor unit.
FINAL INSTALLATION PROCEDURES Installing Batteries, Test Run, Performance Evaluation Installing Batteries into the Handheld Remote Controller Test Run After all installation and testing procedures are complete, the system is ready for a test run. Follow the guidelines below. 1. Check that all drain piping, refrigerant piping, and wiring / cables are properly connected. 2. Check that both the gas (vapor) suction and liquid refrigerant piping service valves are fully open. 3.
FINAL INSTALLATION PROCEDURES Installer Modes Accessing Installer Mode 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. Installer Mode can be accessed one of two ways: Figure 126: Installer Mode Method One (1). Step 2. TEMP Single Zone Art Cool Premier Wall Mounted Installation Manual A Installer Mode Method One (1): 1. Supply power to the system. SET UP 2.
FINAL INSTALLATION PROCEDURES Installer Modes Figure 127: Installer Mode Method Two (2). Installer Mode Method Two (2): 1. Supply power to the system. Step 2. 2. Insert a battery (or the batteries) into the handheld controller while simultaneously pressing the “A” button. TEMP A 3. Release the “A” button. The display on the handheld controller changes to “00”. 4. Set the code by pressing the Up and Down Temperature buttons.
FINAL INSTALLATION PROCEDURES Pump Down Procedure Single Zone Art Cool Premier Wall Mounted Installation Manual Pump Down Procedure Use Pump Down Procedure when the refrigerant piping system needs to be serviced. Pumping down collects all the refrigerant in the system and pipes it to the outdoor unit without losing any charge. Always adhere to and be familiar with local codes regarding the handling of refrigerant. The system must operate in Cooling Only mode to proceed with the pump down procedure.
TROUBLESHOOTING LG Monitoring View (LGMV) Diagnostic Software 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.
TROUBLESHOOTING LG Monitoring View (LGMV) Diagnostic Software LG Monitoring View (LGMV) Diagnostic Software and Cable - Continued. Single Zone Art Cool Premier Wall Mounted Installation Manual 5. Data • 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. 6.
TROUBLESHOOTING LG SIMS - Self Diagnosis Functions The SIMs WLAN module and the smart phone app together provide monitoring and troubleFigure 133: LG SIMs App and WLAN Module. shooting 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.
TROUBLESHOOTING LG SIMS - Self Diagnosis Functions Single Zone Art Cool Premier Wall Mounted Installation Manual SIMs App Screens 74 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 Indoor Info Tab Graph Info Tab Displays the follo
TROUBLESHOOTING Error Codes Troubleshooting Using Error Codes Refer to the table below and on the next page 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.
TROUBLESHOOTING Error Codes Single Zone Wall Mounted Outdoor Unit Error Codes Single Zone Art Cool Premier Wall Mounted Installation Manual 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 Major Component Rough-In Description Check Piping and Insulation Description Check Brazing Practices Description Check Refrigerant Piping Description Check Condensate Pump / Drain Installation Description Check Single Zone Art Cool Premier Wall Mounted Installation Manual 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.
For further technical materials such as submittals, engineering manuals, service manuals, and catalogs, visit www.lghvac.com.
20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics, U.S.A., Inc. Air Conditioning Technologies 4300 North Point Parkway Alpharetta, Georgia 30022 www.lghvac.
