SINGLE ZONE EXTENDED PIPING WALL MOUNTED INSTALLATION MANUAL 2 Tons 2-1/2 and 2-3/4 Tons LS243HLV3 LS303HLV3, LS363HLV3
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 Extended Piping 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. 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
SAFETY INSTRUCTIONS OPERATION Single Zone Extended Piping Wall Mounted Installation Manual 'R QRW SURYLGH SRZHU WR RU RSHUDWH WKH XQLW LI LW LV ÀRRGed or submerged. 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 ..................................................................................... 8-11 Unit Nomenclature ............................................................................... 8 Parts .................................................................................................... 9 6SHFL¿FDWLRQV .................................................................
GENERAL DATA Unit Nomenclature Single Zone Wall Mount Indoor and Outdoor Units Single Zone Extended Piping Wall Mounted Installation Manual LS N 243 HLV Family LS = Wall Mounted Type N = Indoor Wall Mount Unit U = Outdoor Heat Pump Unit Capacity (Mbh) 243 = 22 303 = 30 363 = 33 Indoor/Outdoor Product HLV = Extended Piping Generation or Revision 1 = First 2 = Second 3 = Third 8 Due to our policy of continuous product innovation, some specifications may change without notification.
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 Part Quantity Installation Plate (Dimensions Will Vary Depending on Model) One (1) Image LSN243HLV3, LSN303HLV3, LSN363HLV3 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) Brac
GENERAL DATA 6SHFL¿FDWLRQV Table 1: 6LQJOH =RQH ([WHQGHG 3LSLQJ :DOO 0RXQWHG 6SHFL¿FDWLRQV Single Zone Extended Piping Wall Mounted Installation Manual System (Model) (Indoor Unit / Outdoor Unit) Cooling Capacity1 (Min/Rated/Max) (Btu/h) Cooling Power Input1 (Rated) (kW) Heating Capacity (Min/Rated/Max) (Btu/h) Heating Power Input1 (Rated) (kW) COP Maximum Heating Capacity (Btu/h) Outdoor 17°F (WB)/Indoor 70°F (DB) Outdoor 5°F (WB)/Indoor 70°F (DB) Outdoor 0°F (WB)/Indoor 70°F (DB) Outdoor -4°F (WB)/Ind
GENERAL DATA Electrical Table 2: Single Zone Extended Pipe Indoor Unit Electrical Data. Nominal Tons 2 2-1/2 2-3/4 Unit Model Hertz Number Voltage LS243HLV3 LS303HLV3 LS363HLV3 208 - 230 60 Voltage tolerance is ±10%. Maximum allowable voltage unbalance is 2%. MCA = Minimum Circuit Ampacity. Voltage Range MCA (Min. to Max.) 187 - 253 19.0 23.0 23.0 MOP Compressor Qty. 30 30 30 1 1 1 Compressor Motor Outdoor Fan RLA Motor Cooling Heating W FLA 14.41 14.41 124 0.4 15.1 15.1 124 0.25 15.1 15.
GENERAL INSTALLATION GUIDELINES Outdoor Unit Location Selection Selecting the Best Location for the Outdoor Unit DANGER Single Zone Extended Piping Wall Mounted Installation Manual • 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. 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.
GENERAL INSTALLATION GUIDELINES Outdoor Unit Location Selection Oceanside Applications Figure 2: Oceanside Placement Using Windbreak. Use of a Windbreak to Shield from Sea Wind Single Zone Extended Piping Wall Mounted Installation Manual Windbreak Ocean winds will cause corrosion, particularly on the condenser and HYDSRUDWRU ¿QV ZKLFK LQ WXUQ FRXOG FDXVH SURGXFW PDOIXQFWLRQ RU LQHI¿cient performance. • • • • • • Avoid installing the outdoor unit where it would be directly exposed to ocean winds.
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.
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. • 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. • Be very careful when transporting the product.
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: Example of Using an Insert for a Hole in a Reinforced Concrete Beam. Figure 8: Close up of Bolt Attachment.
GENERAL INSTALLATION GUIDELINES Required Indoor Unit Clearances Follow required best practices when choosing an indoor location for the single zone extended piping indoor unit. Figure 12: Single Zone Extended Piping Wall Mount Indoor Unit Clearance Requirements. More than 8 inches Single Zone Extended Piping Wall Mounted Installation Manual Do’s • Minimum clearance of indoor unit from the top of the unit to the More than More than (200 mm) ceiling must be greater than 8 inches.
GENERAL INSTALLATION GUIDELINES Indoor Unit Mounting Mounting the Installation Plate to the Wall Follow the procedure below and general best practices when mounting the indoor unit’s installation plate to a wall. When choosing a location for the wall mount plate, be sure to take into consideration routing of wiring for power outlets within the wall. Contacting wiring can cause serious bodily injury or death. Use caution when drilling holes through the walls for the purposes of piping connections.
GENERAL INSTALLATION GUIDELINES Indoor Unit Mounting 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 clearances. 1. Confirm the location of the indoor unit, and where the piping hole will be placed. HLV3 Extended Piping indoor units have a choice of left or right piping. 2. Measure the distance from the installation plate (see previous page).
GENERAL INSTALLATION GUIDELINES Indoor Unit Mounting 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. Figure 22: Attaching the Indoor Unit to the Installation Plate.
REFRIGERANT SAFETY STANDARDS / DEVICE CONNECTION LIMITATIONS Single Zone Extended Piping Wall Mounted Engineering Manual 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 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 Single Zone Extended Piping Wall Mounted Engineering Manual 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. Refrigerant pipe along with the insulation jacket form a cohesive unit that expands and contracts together.
COPPER EXPANSION AND CONTRACTION Table 13: Linear Thermal Expansion of Copper Tubing in Inches. 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 0.84 0.96 1.08 55° 0.06 0.13 0.20 0.26 0.33 0.39 0.46 0.52 0.59 0.65 0.78 0.91 1.04 1.17 60° 0.07 0.14 0.21 0.28 0.35 0.42 0.
PIPING HANDLING Piping Materials and Handling Single Zone Extended Piping Wall Mounted Engineering Manual 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 Pipes Capped While Storing. Keep refrigerant pipe dry, clean, and airtight. No moisture should be inside the piping.
REFRIGERANT SYSTEM ENGINEERING 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 Single Zone Extended Piping Wall Mounted Engineering Manual Obstacles Figure 27: 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. Figure 30: Pipe Sleeve Options.
FLARING AND BRAZING PROCEDURES Flaring and Brazing Procedures Single Zone Extended Piping Wall Mounted Engineering Manual 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.
FLARING AND BRAZING PROCEDURES 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 Do not use polyolyester (POE) or any other type of mineral oil as a thread lubricant. These lubricants are not compatible with the PVE oil used in this system and create oil sludge leading to equipment damage and system malfunction.
REFRIGERANT PIPING CONNECTIONS Installation Overview Single Zone Extended Piping Wall Mounted Installation Manual 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.
REFRIGERANT PIPING CONNECTIONS Special Applications Special Applications 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. When the Outdoor Unit is Installed Below the Indoor Unit: Outdoor Unit Below Indoor Units Seal the small access hole in the wall around the piping. Refrigerant Piping Connections 1.
REFRIGERANT PIPING CONNECTIONS Outdoor Unit Connections Outdoor Unit Piping Connections Single Zone Extended Piping Wall Mounted Installation Manual 1. The HLV3 outdoor unit piping connections are on the side of the unit. Figure 35: Outdoor Unit Piping Connections (HLV3). Figure 36: Removing the Flare Nuts on the Outdoor Unit. The HLV3 outdoor unit has a side panel that covers its electrical components.
REFRIGERANT PIPING CONNECTIONS Indoor Unit Connections 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 38: Position of the Bottom Panel Connection Points. 2. The bottom panel has plastic clips that attach to the indoor unit at several connection points.
REFRIGERANT PIPING CONNECTIONS Indoor Unit Connections Connecting the Indoor Unit Refrigerant Piping Figure 45: Releasing the Piping Holder. Single Zone Extended Piping Wall Mounted Installation Manual 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.
REFRIGERANT PIPING CONNECTIONS Indoor Unit Connections Using a Conduit for Indoor Unit Wiring / Cable Installation Figure 48: 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. • Before permanently positioning the refrigerant piping and drain hose at the back of the indoor unit, install the conduit first. 1.
REFRIGERANT PIPING CONNECTIONS Indoor Unit Connections Piping Installation When Piping is on the Left Side Figure 51: Piping Installation When Piping is on the Left Side (Appearances Will Vary Depending on Indoor Unit Model). Single Zone Extended Piping Wall Mounted Installation Manual 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 See the Electrical System Installation section for information on how to connect the communication / connection (power) wiring from the outdoor unit. Figure 52: Piping Installation When Piping is on the Right Side (Appearances Will Vary Depending on Indoor Unit Model). Right Side Piping Tape Connection Cable Drain Hose Piping Refrigerant Piping Connections 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 12 to 15 for information in reference to outdoor unit placement. Figure 53: HLV3 Outdoor Unit Drain Connection Components.
REFRIGERANT PIPING CONNECTIONS Indoor Unit Condensate Drain Hose Indoor Unit Condensate Drain Hose Installation Figure 54: Indoor Unit Drain Hose Connection Locations. Figure 55: Drain Hose Connection Methods. Type One Refrigerant Piping Connections 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. Single Zone Extended Piping Wall Mounted Installation Manual 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. Extending the Indoor Unit Drain Hose )ROORZ DOO ORFDO VWDWH DQG IHGHUDO JXLGHOLQHV ZKHQ FKRRVLQJ D ¿HOG VXSSOLHG GUDLQ KRVH H[WHQVLRQ Depending on the location of the indoor unit, and its accessibility to the outside, It could be necessary to extend the drain hose so that condensate will be properly routed away.
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. Single Zone Extended Piping Wall Mounted Installation Manual '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 • Always include insulation on all refrigerant and drain piping to ensure condensate does not form and cause damage to walls, floors, etc. • Positioning the drain hose at the top of the bundle can cause condensate to overflow from the drain pan in the inside of the indoor unit. • )RU V\VWHPV ZLWK ZLULQJ JUHDWHU WKDQ IHHW VHH WKH ³&RPPXnication / Connection (Power) Cable Specifications from Outdoor 8QLW WR ,QGRRU 8QLW´ LQ WKH (OHFWULFDO 6\VWHP ,QVWDOODW
INSULATION Refrigerant Piping System Insulation Single Zone Extended Piping Wall Mounted Installation Manual )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.
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.
ELECTRICAL SYSTEM INSTALLATION Single Zone Extended Piping Wall Mounted Installation Manual 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 / CSA federal regulations related to electrical equipment and wiring, and following the manufacturer product diagrams, requirements, and instructions in this manual.
ELECTRICAL SYSTEM INSTALLATION &RQQHFWLRQV DQG 6SHFL¿FDWLRQV Power Wiring / Communication Cable Connections, continued Ring Terminal Figure 75: 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.
ELECTRICAL SYSTEM INSTALLATION &RQQHFWLRQV DQG 6SHFL¿FDWLRQV Single Zone Extended Piping Wall Mounted Installation Manual Power Supply / Power Wiring Specifications Figure 79: Single Zone Outdoor Unit Power Wiring Diagram. • LG Single Zone Extended Piping systems operate at 1Ø, 208" 230V, 60Hz. 1/8 ± " 6 • Power wiring / power wiring gauge to the outdoor unit(s) must be 7/1 solid or stranded, and must comply with all National Electrical Power Wiring, Ground Code (NEC), UL, and local electrical codes.
ELECTRICAL SYSTEM INSTALLATION &RQQHFWLRQV DQG 6SHFL¿FDWLRQV Communication / Connection (Power) Cable Specifications from Outdoor Unit to Indoor Unit Figure 80: Typical Single Zone Outdoor Unit to Indoor Unit Wiring and 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
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.
ELECTRICAL SYSTEM INSTALLATION Indoor Unit Electrical Connections 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 Indoor Unit Electrical Connections Single Zone Extended Piping Wall Mounted Installation Manual 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.
ELECTRICAL SYSTEM INSTALLATION Indoor Unit Electrical Connections 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 Indoor Unit Electrical Connections Single Zone Extended Piping Wall Mounted Installation Manual 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.
ELECTRICAL SYSTEM INSTALLATION Outdoor Unit Electrical Connections 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. Failure to do so will cause electric shock, bodily injury and / or death.
ELECTRICAL SYSTEM INSTALLATION Outdoor Unit Electrical Connections Single Zone Extended Piping Wall Mounted Installation Manual 5. 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. Figure 102: Outdoor Unit Wiring / Cable Access Holes. 6.
FINAL INSTALLATION PROCEDURES Triple Leak / Pressure Test Triple Leak / Pressure Test 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. Air and moisture that is left in the piping can lead to undesirable results and can cause damage to the system.
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. Single Zone Extended Piping Wall Mounted Installation Manual 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 Procedure / Triple Evacuation Procedure Deep Evacuation Procedure, continued. Figure 110: Evacuation Procedure Diagram. 3. (YDFXDWH WR VWDWLF PLFURQ OHYHO IRU DW OHDVW RQH KRXU Gauge Manifold 4. 0LFURQ OHYHO PXVW UHPDLQ IRU WZR KRXUV ,I WKH YDFXXP JDXJH ULVHV DQG VWRSV WKH system may contain moisture; therefore, it will be necessary to repeat the steps of vacuum break and drying. 5.
FINAL INSTALLATION PROCEDURES Triple Evacuation Procedure Triple Evacuation Procedure Steps Single Zone Extended Piping Wall Mounted Installation Manual 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.
FINAL INSTALLATION PROCEDURES Refrigerant Trim Charge, Finishing the Job 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 Single Zone Extended Piping Wall Mounted Installation Manual 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 Reattaching the Indoor Unit Bottom Panel Figure 117: Positioning the Bottom Panel Connection Points. Figure 118: 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. Take care not to damage the bottom panel or scratch the main horizontal vane. 2.
FINAL INSTALLATION PROCEDURES Installing Batteries, Test Run, Performance Evaluation Single Zone Extended Piping Wall Mounted Installation Manual Installing Batteries into the Handheld Remote Controller 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.
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 123: Installer Mode Method One (1). Step 2. TEMP A Installer Mode Method One (1): 1. Supply power to the system. SET UP 2.
FINAL INSTALLATION PROCEDURES Installer Modes Figure 124: Installer Mode Method Two (2). Installer Mode Method Two (2): 1. Supply power to the system. Step 2. Single Zone Extended Piping Wall Mounted Installation Manual 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 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 Single Zone Extended Piping Wall Mounted Installation Manual 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. 1. 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. 2. Monitoring • Electrical: The lower half of main screen is changed to show Inverter Compressor Amps, Volts, Power Hz, Inverter control board fan Hz.
TROUBLESHOOTING Single Zone Extended Piping Wall Mounted 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 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 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 Outdoor Info/ Temperature Screen 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 Temp
TROUBLESHOOTING Error Codes Troubleshooting Using Error Codes Single Zone Extended Piping Wall Mounted Installation Manual 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 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 to the indoor or outdoor unit.
CAUTIONS FOR REFRIGERANT LEAKS Refrigerant Leaks Single Zone Extended Piping Wall Mounted Installation Manual 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.
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.
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 Electronics, U.S.A., Inc. Air Conditioning Technologies 4300 North Point Parkway Alpharetta, Georgia 30022 www.lghvac.com IM_SZ_WallMounted_ExtendedPiping_3HLV3_03_20 Supersedes: IM_SZ_WallMounted_ExtendedPiping_3HLV_11_18 IM_ExtendedPiping_3HLV_09_18 IM_WallMounted_All_11_15 IM_WallMounted_All_08_15 IM-WallMounted-All-08-14.
