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Single Zone HigH efficiency Standard Wall Mounted inStallation

1. Refrigerant Piping ConnectionS sssssssssrssssrusnununnnsnunnnnnunnnnnnnnnnnunnns Refrigerant Piping System Limitations Installation Overview c cesesceseeecteseseeseeceeensceeeceesatsnsaseeetetansteees Directional Pipe Formation cccccceseccesceeseeseseeseeeseesesneeeeteesnensaees Drain HOSC eeeseseccesecsecesceseseescseetesesecesseeeetescaneecaeeceeeatsesasaeeteatanentaees Outdoor Unit Connections eececccsesecceseeeeteseseeeeeteesstseseeteteetansnseees Indoor Unit Connections Bundling and Cutting Line oo scescsccsseeeeseeeesseeeesseeseasseeseaseneeees Refrigerant Piping Insulation 0 eects eeeseeeeeeeeeenee Air Purging Leak Test Soap Method Ch CK 2 ccescceeescesessseeessisestsessteetatens Evacuation of Lines Finishing Up REMOlE Controler sarisini Pump Down Cooling Only Mode ssss ssessiieessirsessiressnrreessrreesnrreesss TABLE OF CONTENTS Electrical Wiig ssssssinsssuii General Information and Safety Guidelines Power Wiring Specifications and Best Practices 0 0 40 COMPONGHS oe eseecesececsectseeeseescseeceeeseseessseetesesesesseeeeseecansesaseteteetanentaees 41 Indoor Unit Electrical Connections cccccccceseeeseetseseeteeteeees 42 43 Outdoor Unit Electrical CONN CHIONS cceeeceeteeestetesteeteeees 44 45 Self Diagnosis Functions LG SIMS Self Diagnosis Functions 00 cseseeseeseeeeeesteeeeeesteneees 48 49 Troubleshooting secs ccac
2. LG Life s Good SINGLE ZONE HIGH EFFICIENCY STANDARD WALL MOUNTED INSTALLATION MANUAL Single Zone High Efficiency LSOSOHSV4 LS120HSV4 LS180HSV4 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 The instructions included in this manual 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 Asummary list of safety precautions begins on page 3 IM SZ HighEfficiencyInverter_HSV4 01 15 For more technical materials such as submittals engineering databooks and catalogs visit www Ighvac com For continual product development LG Electronics U S A Inc reserves the right to change specifications without notice LG Electronics U S A Inc This document as well as all reports illustrations data information and other materials are the property of LG Electronics U S A Inc SAFETY INSTRUCTIONS The instructions be
3. Single zone systems consist of one outdoor unit and one indoor unit One of the most critical elements of a single zone system is the refrigerant piping Table 14 lists pipe length limits that must be followed in the design of a Single Zone Wall Mount refriger ant pipe system Refer to Figure 27 for maximum length and elevation of piping Table 14 Single Zone High Efficiency Refrigerant Piping System Limitations Pipe Length Longest total equivalent piping length ELF Equivalent Length of l Feel ee Shortest total equivalent piping length Elevation All Elevation Limitations are ae 3 Measured in Actual Feet If outdoor unit is below indoor unit Additional Refrigerant Needed oz ft If outdoor unit is above indoor unit Installation Figure 27 Single Zone System Layout Unit Feet Indoor unit Max Length 7 Max Elevation B Outdoor unit Indoor unit LSO90HSV4 LS120HSV4 LS180HSV4 Ez Outdoor unit 66 66 Distance between fittings and indoor units or outdoor units 32 8 49 2 Duct Free Single Zone Wall Mounts are a one to one system There is a direct piping connection between the outdoor unit and the indoor unit Figure 28 Illustrates the basic pipe connections between the outdoor and indoor unit Refer back to this illustration as you proceed with pipe connections This illustration shows the indoor unit being installed at a higher position than the outdoor unit however should you install
4. Always check for system refrigerant leaks after the unit has been installed or serviced Low refrigerant levels may cause product failure The unit is shipped with refrigerant and the service valves closed Do not open service valves on the unit until all non condensibles have been removed from the piping system and authorization to do so has been obtained from the com missioning agent There is a risk of refrigerant contamination refrigerant loss and equip ment damage LG WIRING ADANGER High voltage electricity is required to operate this system Adhere to the National Electrical Codes and these instructions when wiring Improper connections and inadequate grounding can cause accidental injury or death Always ground the unit following local state and National Electrical Codes AWARNING The information contained in this manual is intended for use by an industry qualified experienced certified electrician familiar with the U S National Electric Code NEC who is equipped with the proper tools and test instruments Failure to carefully read and follow all instructions in this manual can result in equipment malfunction property damage personal injury or death All electric work must be performed by a licensed electrician and conform to local building codes or in the absence of local codes with the National Electrical Code and the instructions given in this manual If the power source capacity is inadequate or th
5. Do not make refrigerant substitutions Use R410A only If a different refrigerant is used or air mixes with original refrigerant the unit will malfunction and be damaged Keep the unit upright during installation to avoid vibration or water leakage Due to our policy of continuous product innovation some specifications may change without notification 4 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Install the unit in a safe location where nobody can step on or fall onto it There is risk of physical injury or death Do not install the unit in a noise sensitive area When connecting refrigerant tubing remember to allow for pipe expansion Improper piping may cause refrigerant leaks and system malfunction Take appropriate actions at the end of HVAC equipment life to recover recycle reclaim or destroy R410A refrigerant according to applicable U S Environmental Protection Agency EPA rules Periodically check that the outdoor frame is not damaged There is a risk of equipment damage Install the unit in a safe location where nobody can step on or fall onto it Do not install the unit on a defective stand There is risk of unit and property damage Install the drain hose to ensure adequate drainage There is a risk of water leakage and property damage Don t store or use flammable gas combustibles near the unit There is risk of product failure
6. LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 21 s ulj p ng UuOI E e SU je12u 9 Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual GENERAL INSTALLATION GUIDELINES Piping Materials and Handling See table below for precalculated anticipated expansion for various pipe sizes and lengths of refrigerant tubing To find the anticipated expansion value 1 From the table below find the row corresponding with the actual feet of the straight pipe segment 2 Estimate the minimum and maximum temperature of the pipe 3 In the column showing the minimum pipe temperature look up the anticipated expansion distance corresponding to the segment length Do the same for the maximum pipe temperature 4 Calculate the difference in the two expansion distance values The result will be the change in pipe length Table 9 Linear Thermal Expansion of Copper Tubing in Inches Pipe Fluid Temperature F Length ee ee ee 90 f 25 400 105 110 ts Bog 004 TooToo Ton Tone oor fom oos fom ao oso oso ovr ast fon Tose fona ose fons oss oo 008 010 0 12 0 13 014 015 016 1017 018 019 020 021 o22 022 023 026 0 28 020 020 a orzon fots 018 020 021 029 o2 026 oar ozs foso T032 oss ose 035 020 042 fosa 045 m ore 016 020 024026 028 00 022 oa oss ose foo foaz os os os ose foss T
7. Connection Communication Cable Leading to Indoor Unit Conduit Panel Cover Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 45 BunIM 128911329913 Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual ELECTRICAL WIRING Self Diagnosis Functions LG Monitoring View LGMV Diagnostic Software LGMV software PRCTSL1 and PRCTFE1 allows the service technician or commissioning agent to connect a computer USB port to the Single Zone unit s main printed circuit board PCB using an accessory cable without the need for a separate interface device The monitor ing screen for LGMV allows the user to view the following real time data on one screen Figure 66 Actual inverter compressor speed Liquid injection Figure 66 MV Real time Data Screen Target inverter compressor speed valves operation Actual outdoor fan speed indicator lights Target outdoor unit fan speed Hot gas bypass valve operation indicator e Actual superheat e Target superheat e Actual subcooler circuit superheat light Four way reversing valve operation e Target subcooler circuit superheat indicator light e Main EEV position Pressure graph Subcooling EEV position showing actual low e Inverter compresso
8. ELECTRICAL WIRING LG SIMS Self Diagnosis Functions The SIMs WLAN module and the smart phone app together provide monitoring and troubleshooting capability for LG Duct Free Systems SIMs functions only with LG Duct Free products Figure 70 SIMs can display and graph operational data for the air conditioner system including the indoor unit and the outdoor unit SIMs also displays error codes and a troubleshooting guide A full copy of the LG SIMs Smart Inverter Monitoring System User s Manual is available on the www ghvac com website To use SIMs you must be a trained HVAC service technician familiar with variable refrigerant flow VRF systems in general and with LG s Duct Free System products You should under stand the inverter air conditioning operation cycle the meaning of the data displayed by SIMs and how to use the data to troubleshoot the system Figure 71 shows a Multi F configuration used with the SIMs module and app LG SIMs can also be used with Single Zone one to one configurations such as the Single Zone Wall Mount systems Figure 70 LG SIMs App and WLAN Module AWARNING Figure 71 SIMs WLAN Module to a Typical Multi F System High voltages capable of causing death are used in lit eka ta ca a A EE Ug this equipment Outdoor unit power remains connected i T ji 5 during this procedure Take extreme caution not to touch a 4 lt LG 7 electrical components or connections Failure to observe t
9. Evacuation of Lines Finishing Up Remote Controller Evacuation After successful leak testing has been performed follow Evacuation procedure Follow the same steps for charge hose hookup to the system See Figure 51 on page 35 for proper hookup Procedure 4 Turn off the pump and leave the connections secured to the two 1 Confirm that the Lo knob of the manifold valve is open Refer service valves back to Figure 51 5 Wait 5 minutes 2 Confirm that the Hi knob of the manifold valve is left closed 6 If the system fails to hold 500 microns or less check all connec 3 Run the Vacuum pump tions for tight fit and repeat the evacuation procedure Operate pump until the system has been evacuated down to 300 7 Once desired vacuum is reached close the Lo knob of the microns manifold valve and stop the vacuum pump Run pump an additional 15 minutes after reaching micron level 8 Proceed to Finishing the Job section below The duration of the operation of the vacuum pump will vary accord ing to pipe length and the capacity of the pump Refer to Table 17 for accurate time duration Finishing the Job Once the Evacuation procedure has been performed follow the steps below to turn off all valves at the outdoor unit and safely disengage the manifold valve along with the vacuum pump Refer back to the illustrations and tables on the previous pages as you go through the steps below Procedure Test Running 1 Using a
10. Standard Extended Pipe and Mega Wall Mount Installation Manual GENERAL INSTALLATION GUIDELINES Piping Materials and Handling Selecting Field Supplied Copper Tubing Copper is the only approved refrigerant pipe material for use with Duct Free System Single Zone products and LG recommends seamless phosphorous deoxidized ACR type copper pipe hard drawn rigid type K or L or annealed tempered copper pipe Drawn temper rigid ACR copper tubing is available in sizes 3 8 through 2 1 8 inches ASTM B 280 clean dry and capped Annealed temper soft ACR copper tubing is available in sizes 1 4 through 2 1 8 inches ASTM B 280 clean dry and capped Note Tube wall thickness should meet local code requirements and be approved for an operating pressure of 551 psi If local code does not specify wall thickness LG suggests using tube thickness per table below When bending tubing try to keep the number of bends to a minimum and use the largest radii possible to reduce the equivalent length of installed pipe also bending radii greater than ten 10 pipe diameters can minimize pressure drop Be sure no traps or sags are present when rolling out soft copper tubing coils Table 6 ACR Copper Tubing Material Seamless Phosphorous Deoxidized UNS C1200 DHP Straight Lengths H58 Temper 060 Temper Table 7 Piping Tube Thicknesses OD in 1 n mnm sa a ve 118 1 3 8 1 5 8 Material Rigid Type K or L
11. and Soft ACR Acceptable Rigid Type K or L Onl Min Bend Min Wall Table 8 ACR Copper Tubing Dimensions and Physical Characteristics noma sea un Diameter tn Pamelor m ae a a ee e ae ee a a e All dimensions provided are in accordance with ASTM B280 Standard Design pressure 551 psig ACR Tubing is available as hard drawn or annealed soft and are suitable for use with R410A refrigerant The Copper Tube Handbook 2010 Copper Development Association Inc 260 Madison Avenue New York NY 10016 Note e Commercially available piping often contains dust and other materials Always blow it clean with a dry inert gas e Prevent dust water or other contaminants from entering the piping during installation Contaminants can cause mechanical failure Due to our policy of continuous product innovation some specifications may change without notification LG 20 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL INSTALLATION GUIDELINES No Pipe Size Substitutions Note Piping Materials and Handling Use only the pipe size recommended by this installation manual Using a different size is prohibited and may result in a system malfunction or failure to work at all Obstacles When an obstacle such as an l beam or concrete T is in the path of the planned refrigerant pipe run it is best practice to route the pipe over the obs
12. refrigerant pipe must be located at a level below the frost line Table 12 Utility Conduit Sizes Vapor Pipe Liquid Pipe SRN CI RE 4 mao a 4 4 INEF OD pipe diameter in inches Values in parenthesis indicate OD of pipe with insulation jacket Diameter of pipe with insulation Thickness of pipe insulation is typical Actual required thickness may vary based on surrounding ambient conditions and should be calculated and specified by the design engineer 5Insulation thickness value in parenthesis 3 8 inch Insulation thickness value in parenthesis 1 inch LG Underground Piping Figure 28 Typical Arrangement of Refrigerant Pipe and Cable s in a Utility Conduit Vapor Line Insulation Material Pipe Sleeve Insulation Material Min 18 Gauge Power Communication Cable Table 13 Heat Pump Unit Refrigerant Pipe Connections Liquid Conn inches inches All Brazed Type LSUO90HSV4 LSU120HSV4 LSU180HSV4 Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 25 s ulj p ng uoejje suj je12u 29 Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual REFRIGERANT PIPING CONNECTIONS Refrigerant Piping System Limitations Installation Connection Limitations
13. the outdoor unit at a higher position than the indoor unit the basic pipe connections should be the same Refer back to the table within the Connection Limitations section above for specific length limitations in conjunction with outdoor unit and indoor unit positioning Figure 28 Installation and Piping Connection Overview Note As you proceed with the piping connections be sure to adhere to pipe support spacing lengths as shown in Figure 29 below Refer back to Pipe Supports sec tion for in depth information regarding using elbows clamps and pipe supporting materials Always adhere to local codes regarding piping and accurate support spacing along the outdoor pipe line Installation Overview Installation plate Sleeve X Bushing Sleeve x H H Putty Gum Type Sealant gt Figure 29 Pipe Support Lengths Outdoors eal he gs a eh _ on the wall as possible but be careful that it H doesn t break H Vinyl tape Wide x Apply after carrying out a i drainage test Saddle 9 E Air Inlet gx Gas side piping X y Liquid side piping X Air Outlet r Additional drain pipe X Vinyl tape Narrow gt y Drain Hose Connecting cable x Tubing Cover x Additional accessories parts tools that will be needed for installation but are not provided by LG Base Plate A B 12 19 Due to our policy of continuous product innovation some specific
14. Connections 1 Remove the tubing cover by loosening the fastening screws See Figure 36 2 Align the center of the refrigerant pipe and corresponding connection as shown in Figure 37 3 Refer to Figure 38 for correct liquid and gas pipe attachment onto outdoor unit 4 Place a couple of drops of refrigerant oil on the opening rim of the flare before assembling Ensure you do not add any contami nants Tighten the flare nut initially by hand 5 Finish tightening the flare nut with a torque wrench until the wrench clicks Follow torque guidelines in Table 15 See Figure 38 for correct connection points Note When tightening the flare nut with a torque wrench ensure the direc tion for tightening follows the arrow on the wrench Table 15 Torque Wrench Tightening Outside Diameter inches Note Do not thread liquid or gas piping through bracket used to hold main power cables Figure 37 Pipe Attachment LG Figure 36 Outdoor Unit Connection Cover Removal HSV4 Tubing Cover Bracket for Main Power Cables Figure 38 Outdoor Unit Piping Connection HSV4 Outdoor Unit Liquid Piping Smaller diameter Gas Piping Bracket for Larger diameter Main Power Cables Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a reg
15. Create flared connections using the procedure at right Fig ure 19 1 Cut the pipe to length Measure the distance between the indoor unit and the outdoor unit e Cut the pipes a little longer than measured distance Cut the cable 4 9 ft longer than the pipe length 2A Remove the burrs Completely remove all burrs from pipe ends e When removing burrs point the end of the copper pipe down to avoid introducing foreign materials in the pipe 2B Slide the flare nut onto the copper tube 3 Flaring the pipe end e Use the proper size flaring tool to finish flared connections as shown ALWAYS create a 45 flare when working with R410A See Warn ing on this page 4 Carefully inspect the flared pipe end Compare the geometry with the figure to the right and dimensions as detailed in Figure 18 If the flare is defective cut it off and re do procedure e If flare looks good blow clean the pipe with dry nitrogen Figure 18 Dimensions of the Flare AWARNING When selecting flare fittings always use a 45 fitting rated for use with high pressure refrigerant R410A Failure to do so may result in refrig erant leaks which in turn could result in personal injuries or death from oxygen depletion Selected fittings must also comply with local state or federal standards Figure 19 Creating a Flare Fitting 1 Copper tube 2A N Pipe 2B Copper tube Reamer i W 3 B Da Uneven
16. Do not terminate two wires on Do not terminate different gauge the same gauge to both sides one side wires to a terminal block Due to our policy of continuous product innovation some specifications may change without notification LG 40 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp ELECTRICAL WIRING Power Wiring Specifications and Best Practices Controller Options Power Supply Power Wiring Specifications continued WARNING If power wires are not properly terminated and firmly attached there is risk of fire electric shock and physical injury or death Never ground the shield of the communications cable to the indoor unit frame or other grounded entities of the building Note Never apply line voltage power to the communications cable terminal block If contact is made the PCBs may be damaged Always include some allowance in the wiring length when terminating Provide some slack to facilitate removing the electrical panels while servicing General Communication Cable Specifications e Use a four 4 conductor shielded stranded cable between the Firmly attach the cable provide slack but secure in a way to pre Single Zone outdoor unit and the indoor unit vent external forces from being imparted on the terminal block Minimum 18 gauge shielded CVVS or CPEVS cable e Wiring should be completed without splices e Insulation material as require
17. Example A system is installed and the design shows that there is a 100 foot straight segment of tubing between an indoor unit and the outdoor unit In heating this pipe transports hot gas vapor to the indoor units at 120 F In cooling the same tube is a suction line returning refrig erant vapor to the outdoor unit at 40 F Look up the copper tubing expansion at each temperature and calculate the difference Vapor Line Transporting Hot Vapor 100 ft pipe at 120 F 1 40 in Transporting Suction Vapor 100 ft pipe at 40 F 0 40 in Anticipated Change in Length 1 40 in 0 40 in 1 00 in Liquid Line The liquid temperature remains relatively the same temperature only the direction of flow will reverse No significant change in length of the liquid line therefore is anticipated When creating an expansion joint the joint height should be a minimum of two times the joint width Although different types of expansion arrangements are available the data for correctly sizing an Expansion Loop is provided in Table 1010 Use soft copper with long radius bends on longer runs or long radius elbows for shorter pipe segments Using the anticipated linear expansion LE distance calculated look up the Expansion Loop or U bend minimum design dimensions If other types of expansion joints are chosen design per ASTM B 88 Standards Due to our policy of continuous product innovation some specifications may change without notification
18. INSTALLATION GUIDELINES Location Selection Selecting the Best Location DANGER To avoid the possibility of fire do not install the unit in an area where combustible gas may generate flow stagnate or leak Do not install the unit in a location where acidic solution and spray sulfur are often used as it can cause bodily injury or death Do not use the unit in environments where oil steam or sulfuric gas are present as it can cause bodily injury or death AWARNING Install a fence to prevent vermin from crawling into the unit or unauthorized individuals from accessing it Note Select a location for installing the outdoor unit that will meet the following conditions Where the unit will not be subjected to direct thermal radiation from other heat sources e Where operating sound from the unit will not disturb inhabitants of surrounding buildings e Where the unit will not be exposed to direct strong winds Where there is enough strength to bear the weight of the unit Include space for drainage to ensure condensate flows properly out of the unit when it is in heating mode Include enough space for air flow and for service access Note To ensure the outdoor unit operates properly certain measures are required in locations where there is a possibility of heavy snowfall or severe wind chill or cold 1 Prepare for severe winter wind chills and heavy snowfall even in areas of the country where these are unusual
19. Indoor Unit Electrical Wiring The general guidelines for connecting electrical and communication cables to the indoor unit are the same for each Single Zone High Efficien cy Wall Mount system however the actual connections on the terminal block will differ See each illustration for the model that you are wiring for correct contact on each terminal block Depending on your indoor unit the location of the terminal block on the indoor unit might vary slightly from the images shown in this section AWARNING Be sure that main power to the unit is completely off before pro ceeding with these steps Follow all safety and warning information outlined at the beginning and throughout this manual Failure to do so may cause bodily injury Note Follow all safety and warning information outlined at the begin ning and throughout this manual Failure to do so may cause unit failure Some units might require you to remove the Control Cover from the terminal block area Most Control Covers are attached with a phillips screw head Connect the electrical cable to the indoor unit by connecting the wires to the terminals on the control board individually according to the outdoor unit connection Be sure that the color of the wires at the outdoor unit along with the terminal numbers are the same as those for the indoor unit Procedure A WARNING Be sure there is no power going through the Single Zone system before proceeding with these c
20. Mega Wall Mount Installation Manual INSTALLATION CHECKLIST PAGE 1 Major Component Rough In Single Zone unit was connected properly per local code and the product installation procedures a All literature and bagged accessories have been removed from the fan discharge P Indoor unit was installed properly supported and located indoors in a non corrosive environment Single Zone unit s gravity condensate drain line was connected and routed where it properly drains away or if installed in a mechanical room was connected and properly routed to a drain terminal Piping and Insulation opper Over 5 8 inches Rigid ACR only 8 inches and under Can use soft ACR 15 silver brazing material only All refrigerant pipes and valves were insulated separately Insulation butts up against the walls of the indoor units No gaps or cracks Insulation was not compressed at clamps and hangers Brazing Practices Medical grade there are 4 available dry nitrogen for purging during brazing was used constant 3 psi while brazing Installation For more information on any procedure refer to the detail provided in the installation section Refrigerant Piping All pipe materials were properly stored capped and clean All burrs were removed after cutting and pipe ends were reamed before brazing During refrigerant pipe installation for each segment of pipe a record was made of the pipe length including expansion loops offset
21. Outdoor Unit a AN Wess BENN AON Unit Inch Indoor Unit Clearance Follow recommended best practices when choosing an indoor loca tion for the Single Zone indoor unit Keep unit away from any indoor steam or excessive heat No obstacles should be placed around unit Condensation drain Leakage piping should be routed away from the unit Do not install near doorway Clearance gap between any wall or enclosure and the left or right side of the unit must be greater than 4 inches e From the top of the unit to the ceiling there must be greater than 5 or 8 inches of clearance depending on indoor unit model e Unit should be at least 6 5 feet from the floor for adequate clearance Due to our policy of continuous product innovation some specifications may change without notification 14 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Figure 7 Clearances Where There are Obstacles Above and on Both Air Inlet and Outlet Sides Obstacle on the Outlet Side is Lower Than the Outdoor Unit lt ws SNS ANOS Minimum 27 5 8 Unit Inch Figure 8 Indoor Unit Clearance Recommendations More than 4 t 9 12k Indoor Units 25 18k Indoor Units 28 More than 4 Unit Inch LG At least 6 5 from the floor GENERAL INSTALLATION GUIDELINES Mounting of Indoor Unit Installation Plate Mounting Installation Plate to Wa
22. e Avoid installing the outdoor unit where it would be directly exposed to ocean winds e Install the outdoor unit on the side of the building opposite from direct ocean winds e Select a location with good drainage e Periodically clean dust or salt particles off of the heat exchanger with water e If the outdoor unit must be placed in a location where it would be subjected to direct ocean winds install a concrete windbreak strong enough to block any winds e Windbreak should be more than 150 of the outdoor unit s height There must be 2 to 3 1 2 inches of clearance between the outdoor unit and the windbreaker for purposes of air flow Oceanside Applications Use of a Building to Shield from Sea Wind If a windbreak is not possible a building or larger structure must be used to shield the outdoor unit from direct exposure to the sea wind The unit should be placed on the side of the building directly opposite to the direction of the wind as shown in Figure 2 Due to our policy of continuous product innovation some specifications may change without notification 12 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Figure 1 Oceanside Placement Using Windbreak Windbreak Sea wind Note Additional anti corrosion treatment may need to be applied to the outdoor unit at oceanside locations Figure 2 Placement Using Building as Shield Building Sea
23. match color codes of each wire and follow wiring diagram Connecting the Power Wiring Guidelines Figure 54 Single Zone Outdoor and Indoor Wiring and Communications Cable Diagram Best practice dictates using ring or spade terminals to terminate power wiring at the Line Voltage power terminal block Figure 55 208 230V If ring terminals or spade clips are not available then For 9 12K Indoor Units AWG 14 g ae For 18K Indoor Units AWG 12 AWARNING Do not terminate different gauge wires to the power terminal block Slack in the wiring may generate heat and fire Note ite terminating wires of the same thickness follow the instructions demonstrat ed in the illustrations below at Figure 56 Firmly attach the wire secure in a way to prevent external forces from being imparted on the terminal block Use an appropriately sized screwdriver for tightening the terminals Do not over tighten the connections overtightening may damage the terminals Power Wiring Ground Communication Cable From Outdoor Unit Power Wiring Ground to Outdoor Unit D g For 9 12 18K Indoor Units AWG 18 OX 5 Figure 55 Close up of a Typical Ring Terminal To Indoor Unit Power Wiring Ring Terminal 7 g GN YL Ground Yellow Vp Figure 56 Proper and Improper Power Wiring Connections P i ai j Copper Wire Terminate multiple power wires of
24. power switch on during the operational season Due to our policy of continuous product innovation some specifications may change without notification 6 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Periodically verify the equipment mounts have not deteriorated If the base collapses the unit could fall and cause physical injury or death If gas leaks out ventilate the area before operating the unit If the unit is mounted in an enclosed low lying or poorly ventilated area and the system develops a refrigerant leak it may cause fire electric shock explosion physical injury or death Periodically check power cord and plug for damage Cord must be replaced by the manufacturer its service agent or similar qualified persons in order to avoid physical injury and or electric shock Do not open the inlet grille of the unit during operation Do not operate the unit with the panels or guards removed Do not insert hands or other objects through the inlet or outlet when the unit is plugged in Do not touch the electrostatic filter if the unit includes one The unit contains sharp rotating hot and high voltage parts that can cause personal injury and or electric shock Securely attach the electrical part cover to the indoor unit and the service panel to the outdoor unit Non secured covers can result in burns or electric shock due to dust or water in the serv
25. registered trademark of LG Corp Decoding the Error Display The first and second number on the LED indicates error number Example 21 LED1 Green light 2x blink LED2 Red light 1x blink Error Code Nomenclature Definitions e MICOM Non volatile memory chip where unit setup information is stored e EPROM Non volatile memory chip where device identification size and factory defined default component operating parameters are stored Figure 73 IDU LS HSV4 Models LED 1 UNITS PLACE LED 2 TENS PLACE Receiver No of Times Indoor Unit LEDs Blink LED2 Power LED LED1 Plasma LED LG TROUBLESHOOTING Error Codes Troubleshooting Using Error Codes Continued Table 21 Single Zone Wall Mounted Indoor Unit Error Codes Continued No of Times Indoor Unit Error 43 LEDs Blink Code Description LEDI TED Plasma LED Power LED 1 DC Peak IPM Fault Compressor DC voltage was too high 2X Current Transformer2 CT2 error Alternating current AC input too high DC Link Low Volt 2 2 EE EE er N 5 AC Low High Volt DC Comp Position Error not providing rotation Locking X 2 Inverter Compressor Discharge Pipe D Pipe Overheat CT Sensor Error Thermistor is disconnected or shorted out x x x x x x x x xX E E E X x x x x x a x x x x aX CO 2 2 2 2 2 3 als Middle thermistor of outdoor unit condenser coil is disconnected or shorted out O
26. the actual terminal block e Maintain a minimum of 2 of wire length from terminal block to cable bundle Due to our policy of continuous product innovation some specifications may change without notification LG 44 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Terminal Block Connection for 090HSV4 120HSV4 See Figure 64 for specific terminal block wiring for the following Single Zone High Efficiency outdoor unit models LSUO90HSV4 LSU120HSV4 Figure 64 O90HSV4 120HSV4 Outdoor Unit Electrical Connections O90HSV4 120HSV4 TERMINAL BLOCK I GN YL KZ Terminal Block 5 Over 0 2 O90HSV4 120HSV4 La _ Connection Communication M IlL Cable Leading to Indoor Unit Power Cord a Conduit Panel Tubing Cover ELECTRICAL WIRING Outdoor Unit Electrical Connections Terminal Block Connections for 180HSV4 See Figure 65 for 180HSV4 Single Zone High Efficiency terminal block connections Figure 65 180HSV4 Outdoor Unit Electrical Connections 180HSV4 Electrical Connections ACT ELAN ope hepe 3 TERMINAL BLOCK GNYL1 BR BL GN YL BRI BLI Rol ldla G JCU OJ POWER TO INDOOR UNIT e2 3 180HSV4 vk S fe Outdoor Unit Terminal Block Over 0 2 Power Cord Conduit Panel
27. the system is in Installer Mode with Cooling Only Mode initiated automatic operation is suspended Once Cooling Only Mode is disabled the unit will return to normal operation e Installer Code cannot be entered if the unit is running The system must be completely powered off All Installer Code numbers must be entered into the system during Power Off state Compete shutdown of the system e WLAN Module s communication time will lag by about 1 minute after unit is turned back on and in normal operating mode Entire lock or Mode lock cannot be set if you set heating or automatic operation through the central controller Due to our policy of continuous product innovation some specifications may change without notification 38 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp LG AWARNING All power wiring and communication cable installation must be performed by authorized service providers working in accordance with local state and National Electrical Code regulations related to electrical equipment and wiring and following the instructions in this manual Undersized wiring may lead to unacceptable voltage at the unit and may cause unit malfunction and be a fire hazard Properly ground the Single Zone outdoor and indoor unit Ground wiring is required to prevent accidental electrical shock during current leakage Ground wiring must always be insta
28. to the indoor unit being careful to align panel using the rear tabs e You might need to give the panel a gentle tap with the palm of your hand to be sure it engages at the bottom 6 Using a phillips screwdriver reattach the screws to the bottom panel and secure 7 Once screws are in place re snap the latches over the screws e Refer back to Figure 57 as an example 8 If all other piping and electrical wiring to the outside unit has been completed at this stage you can turn the system on to test e If you have not completed the piping drain hose and wiring to the system connections do not turn power on at this time and proceed to complete all other piping along with Figure 60 Indoor Unit Knockout Communication Wires Figure 61 Indoor Unit Terminal Block with Grounding Cable Example Only Terminal Block Connection for Figure 62 090HSV4 120HSV4 180HSV4 Indoor Units Terminal Block C ti 090HSV4 120HSV4 180HSV4 E See Figure 62 for specific terminal block wiring for all Single Zone O90HSV4 1 20HSV4 High Efficiency models 180HSV4 LSNOS0HSV4 LSN120HSV4 e gt D LSN180HSV4 Za Note e Pay special attention to the location of the grounding cable and the cable restrainer around the other electrical communication cables when connecting Note that the terminal block is located behind the drain hose and bundled piping on these units LG erminal Block Expanded View Term
29. wrench turn the valve of the liquid stem counter clock After leakage testing and evacuation procedure the system should wise to fully open the valve refer back to Figure 51 be ready to start up for a test run Follow the guidelines below for 2 Turn the valve of the gas stem counter clockwise to fully open the proper procedure valve 3 Loosen the charge hose connected to the gas side service port slightly to release the pressure and then remove the hose 4 Replace the flare nut and its cap on the gas service port and fasten the flare nut securely using an adjustable wrench e This process is very important to prevent leakage from the system 5 Replace the valve caps at both gas and liquid side service valves and then fasten them tightly Once done this will complete the air purging process with a vacu um pump Installing Batteries into Remote Controller Figure 53 Remote Controller Installing Batteries Single Zone Remote Controller Rear View e Check that all tubing piping and wiring are properly connected Make sure that the gas and liquid service valves are fully open e Start up the system and do a test run As system is up and running verify all is in working order and make notes as needed to work around any issues that might crop up As part of test running you will need to insert batteries and power on the remote controller To insert the batteries follow the steps below For information on using the re
30. 2 wrenches to loosen the flare nuts Piping Materials and Handling 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 contami nate the interior with dust moisture etc See Table 5 for care of piping Table 5 Three Principles of Refrigerant Piping Problems Caused Figure 21 Keep Piping Capped While Storing 0 No moisture should be inside the piping No dust should be inside the piping No leaks should occur Dry SC P Ss Significant hydrolysis of refrigerant oil Refrigerant oil degradation Poor insulation of the compressor System does not operate properly EEVs capillary tubes are clogged Remove moisture from the piping Piping ends should remain capped until connections are complete Do not install piping on a rainy day Connect piping properly at the unit s side Remove caps only after the piping is cut the burrs are removed and after passing the piping through the walls Evacuate system to a minimum of 500 microns and ensure the vacuum holds at that level for 24 hours Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Co
31. 4 this warning can result in death or severe injury iene cage diarii lalar unit 4 Outdoor unit Note The Duct Free System air conditioning system must run for at least 15 20 minutes before data collected by SIMs 2 0 is si valid for troubleshooting Q You must have the free SIMs app correctly installed on your 4 smart phone before using SIMs es Some ODUs have an LGMV extension cable accessed by LG SIMs App LG SIMs removing the side handle cover If the ODU does not have on Smart Phone WLAN Module this extension cable access the LGMV connector by remov ing the top cover of the ODU Figure 72 SIMs App Main Info Screen Ol s 47 PM SIMs App Main Info Screen wasees The main screen is the first screen displayed after wireless connection is Operational fe established Tap the Main Info tab to display current readings regarding Information E your indoor and outdoor unit s The Operational Info area of the screen 4 will show active functions or modes by illuminating the light to the right of the function Figure 72 i i Additional Help information can be accessed by tapping the Help Menu i buttons at the bottom of this screen AC Cycle Information on Main Info Tab i i Help Menu i 1 E File is Factory Use Only 48 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Due to our policy of continuous product innovation some specifica
32. ATA Electrical R410A Refrigerant Electrical Table 2 Single Zone High Efficiency Indoor Unit Electrical Data Model Number sk ag A Coottioat ODU Fan A IDU Fan A MCA A MOP A 8 3 8 3 R410A Refrigerant R410A refrigerant has a higher operating pressure in comparison to R22 refrigerant and therefore all piping system materials installed must have a higher resisting pressure than the materials traditionally used in R22 systems R410A refrigerant is an azeotrope of R32 and R125 mixed at 50 50 so the ozone depletion potential ODP is 0 Many countries have approved of and encouraged R410A for use as an alternate refrigerant AWARNING To prevent the refrigerant cylinder from exploding do not place it in direct sunlight Do not use any piping that has not been approved for use in high pressure refrigerant systems Note Piping wall thickness must comply with the applicable local state and federal codes for the 551 psi design pressure of R410A Because R410A is a combination of R32 and R125 the required additional refrigerant must be charged in its liquid state If the refrig erant is charged in its gaseous state its composition changes and the system will not work properly Due to our policy of continuous product innovation some specifications may change without notification LG 10 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL
33. Figure 32 IDU Above ODU Piping and Trap Indoor Unit Installed ABOVE Outdoor Unit Piping Trap Seal small openings around pipings with a gum type sealant Pipe Clamps to Secure Pipe Against Wall CEECEE OFTE Trap is required to prevent water from entering into electrical parts LG Directional Pipe Formation Figure 30 Cutaway of Proper Pipe and Cable Bundling Vapor Line Insulation Material Liquid Line Pipe Sleeve Insulation Material Min 18 Gauge Power Communication Cable Figure 31 Bundling and Taping Bundling Piping Pipe Vinyl tape narrow Wrap with vinyl tape wide Figure 33 IDU Below ODU Piping and Trap Indoor Unit Installed BELOW Outdoor Unit Piping Trap Seal a small opening around the pipings with gum type sealant Pipe Clamps to Secure Pipe Against Wall Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 27 SUOIJDOUUOD BHuldig JuUeIABIIyaY Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual REFRIGERANT PIPING CONNECTIONS Drain Hose Drain Hose Guidelines Note Refer to the diagrams below and follow proper installation and the running of the drain hose along the pipe installation line to avoid leakage Once drain h
34. G is a registered trademark of LG Corp 23 s ulj p ng uoejje suj je12u 9 Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual GENERAL INSTALLATION GUIDELINES Piping Support Piping Sleeves Pipe Supports continued A properly installed pipe system will have sufficient supports to avoid pipes from sagging during the life of the system As necessary place supports closer for segments where potential sagging could occur Maximum spacing of pipe supports shall meet local codes If local codes do not specify pipe support spacing pipe shall be supported e Maximum of five feet 5 on center for straight segments of pipe up to 3 4 outside diameter size e Maximum of six feet 6 on center for pipe up to one inch 1 outside diameter size e Maximum of eight feet 8 on center for pipe up to two inches 2 outside diameter size Wherever the pipe changes direction place pipe clamps within twelve 12 inches on one side and within twelve to nineteen 12 to 19 inches of the bend on the other side as shown in Figure 26 Pipe Sleeves at Penetrations Figure 26 Typical Pipe Support Location Change in Pipe Direction A B 12 19 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 mo
35. Pipe and Drain Hose Rear of IDU er Figure 44 i Tape should be sufficient to cover the piping in order to fit into the Wrap with vinyl tape rear piping housing area at the back of the indoor unit Figure 45 piping g Fig D Figure 45 Bundling and Placement at Rear of IDU Vinyl tape wide Drain hose Connecting pipe Drain hose LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 31 SUOI DOUUOD Buldig JUuUeIABIIyaY Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual REFRIGERANT PIPING CONNECTIONS Refrigerant Piping Insulation Refrigerant Piping Insulation To prevent heat loss heat gain through the refrigerant piping all refrigerant piping including liquid lines and vapor lines must be insulated separately Insulation must be a minimum 1 2 thick and thickness may need to be increased based on ambient conditions and local codes All refrigerant piping including field provided isolation ball valves service valves and elbows must be completely insulated using closed cell pipe insulation All insulation joints must be glued with no air gaps Insulation material must fit snugly against the refrigeration pipe with no air space between it and the pipe Insulation passing through pipe hangers inside condui
36. Support the unit a minimum of four points to avoid slippage from rigging apparatus Note Don t install the unit where it s directly exposed to ocean winds Ocean winds may cause corrosion particularly on the condenser and evaporator fins which in turn could cause product malfunction or inef ficient performance When installing the unit in a low lying area or a location that is not level use a raised concrete pad or concrete blocks to provide a solid level foundation This may prevent water damage and reduce abnormal vibration Properly insulate all cold surfaces to prevent sweating Cold surfaces such as uninsulated piping can generate condensate that may drip and cause a slippery floor condition and or water damage to walls When installing the unit in a hospital mechanical room or similar electromagnetic field EMF sensitive environment provide sufficient protection against electrical noise Inverter equipment power generators high frequency medical equip ment or radio communication equipment may cause the air conditioner to operate improperly The unit may also affect such equipment by creating electrical noise that disturbs medical treatment or image broadcasting Do not use the product for special purposes such as preserving foods works of art wine coolers or other precision air conditioning applications The equipment is designed to provide comfort cooling and heating There is risk of property damage
37. all on the same cable Order does not matter Polarity does Keep A terminals with A terminals and B terminals with B terminals Starting at the outdoor unit terminate the cable on terminals Internet A and Internet B Route the cable as needed between each device Controller Options Refer to Table 19 as to which remote controller models is used for each system Once all wiring is connected to the indoor and outdoor units be sure to test the accompanying remote controllers for performance As always follow all safety warnings and notes when operating the Single Zone units using the remote controller Additionally most of the Single Zone High Efficiency outdoor models can use the following controllers when accompanied with the PI 485 VNet Accessory AC Smart LonWorks Table 19 Single Zone Models and Associated Remote Controller Model ACP e LGMV Single Zone Model Type Remote Controller Model BACnet Singe Zone High Efficiency System LSO90HSV4 LS120HSV4 AKB73835317 LS180HSV4 AKB73835317 Due to our policy of continuous product innovation some specifications may change without notification LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 41 BunIM e914 99 4 Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual ELECTRICAL WIRING Indoor Unit Electrical Connections Overview Connecting
38. as installed per all local electrical code requirements lz Power wiring to the indoor unit was installed per all local electrical code requirements LG supplied cable was used between the indoor unit and its zone controller No cables were spliced and no wire caps are present All communications cables were a minimum of 18 AWG four 4 conductor shielded and stranded with insulation material per local code Cable segment shields were tied together Used appropriate crimping tool to attach ring or spade terminals at all power wiring and control cable terminations All power and control wires were properly separated using the recommended distance provided in the product installation manual Communication type RS 485 BUS type f 3d O For further technical materials such as submittals engineering manuals service manuals and catalogs visit www Ighvac com Due to our policy of continuous product innovation some specifications may change without notification 55 LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp S SI 499U4D inverter by Ai CERTIFIED 4 www ahridirecto Uo o m Unitary Small Al AHRI Standard 210 240 ACCREDITED LG ELECTRONICS INC LG Life s Good LG Electronics U S A Inc LG Customer Information Center Commercial Products Commercial Air Conditioning Division 1 888 865 3026 USA 11405 Old Roswell Road Follow
39. ater piping to lightning rods to telephone ground wiring or to the building plumbing system Failure to properly provide a National Electrical Code approved earth ground can result in property damage and equipment malfunction Install appropriately sized breakers fuses overcurrent protection switches and wiring in accordance with local state and National Electrical Code regulations related to electrical equipment and wiring and following the instructions in this manual Using an oversized breaker or fuse may result in equipment malfunction and property damage Separating Power Wires and Communication Cables e Position the power wiring a minimum of two 2 inches away from the communication cables to avoid operation problems caused by electri cal interference Do not run both in the same conduit If it is necessary to run the power wiring and communication cable alongside each other and cannot be avoided see Table 18 below for minimum recommended distances Table 18 Power Wire and Communications Cable Minimum Required Separation Minimum Allowable Distances Capacity of Power Supply Wiring current Recommended Minimum Distance BunIM 128911329913 100A Exceed 100A 1The figures above are based on parallel lengths up to 328 feet long For lengths in excess of 328 feet the distances will have to be recalculated in direct proportion to the additional line lengths involved If the power supply waveform continues to exhi
40. ations may change without notification 26 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp LG REFRIGERANT PIPING CONNECTIONS Pipe Bundling See Figure 30 for proper pipe and cable bundling Note the placement of the piping along with the necessary insulation material 1 Be sure to wrap each pipe with proper insulation material 2 Secure the piping by wrapping vinyl tape around the pipe e Use the narrow size tape for wrapping the actual pipe 3 You can include the drain hose within the bundled piping and wrap all of them together using the wider vinyl tape as shown in Figure 31 e The end of the drain hose outlet must be routed above the ground Indoor Unit Installed Above Outdoor Unit 1 Refer to Figure 32 while following the procedures below 2 Tape the piping drain hose and connecting cable from down to up 3 Secure the taped piping along the exterior wall using pipe clamps 4 Create trap above the electrical connections cover in order to prevent water from penetrating electrical components and wiring Indoor Unit Installed Below Outdoor Unit 1 Refer to Figure 33 while following the procedures below 2 Tape the piping drain hose and connection cable from down to up 3 Secure the taped piping along the exterior wall using pipe clamps 4 Create trap above the electrical connections cover in order to prevent water from entering the room
41. bit some distortion the space between the power wiring and communication cable should be increased Note Do not secure the power wiring and communication cables together Do not run the power wiring and the communication cable in the same conduit Doing so will result in communication issues due to electrical noise and motor current leakage ee Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 39 LG Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual ELECTRICAL WIRING Power Wiring Specifications and Best Practices Power Supply Power Wiring Specifications Note Single Zone systems operate at 10 208 230V 60Hz Power supply wire type and size should be selected based on National Electrical Code and local codes Maximum allowable voltage fluctuation 10 or nameplate rated value Refer to Figure 54 for wiring guidelines e Properly ground the Single Zone outdoor unit and indoor unit per National Electrical Code and local codes e Use only copper wiring that is stranded and shielded with the wires separately insulated Ground wire should be longer than the common power communication wires Refer to the inside of the Chassis Cover for Circuit and Terminal Block Diagrams for your model unit Always
42. d by local code Terminate the cable shield to a grounded surface at the outdoor e Rated for continuous exposure of temperatures up to 140 F unit only e Maximum allowable cable length 984 feet Note Always verify the communication cable is connected to a communications terminal on the Single Zone unit Never apply line voltage power to the communication cable connection If contact is made the PCBs may be damaged The shield of the communications cable connecting the outdoor unit to the indoor unit should be grounded only to the outdoor unit frame Tie the shield of each cable segment together using a wire nut at each indoor unit Maintain polarity throughout the communication network Position the outdoor unit communications cables away from the power wiring Refer to minimum spacing requirements provided in Table 18 e Never use a common multiple core communications cable Each communications bus shall be provided a separate cable i e between outdoor unit and indoor unit Communication Cables Between the Single Zone Unit and the Controller Simple Controllers field provided 18 gauge stranded four conductor communication cable shielded All other Central Controllers field provided 18 gauge stranded two conductor communication cable shielded e Insulation material as recommended by local code e Connect all central control devices such as ACP BACnet and LonWorks gateways and energy recovery ventilators
43. discon nect hose from the cylinder 8 At this point you will need to make all repairs to connections and piping where bubbles were observed 9 Once all repairs are made repeat soap testing using nitrogen cylinder and check for any further leaks 10 Once system is leak free proceed to Evacuation steps Due to our policy of continuous product innovation some specifications may change without notification 36 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Figure 52 Leak Test Diagram Leak Test Using Nitrogen Tank Manifold Valve Indoor Unit Pressure Charge Hose Tank Upright Position Leak Test Ambient Temperature Correction If the ambient temperature changed between the time when pressure was applied and when the pressure drop was checked adjust results by factoring in approximately 1 45 psi for each 2 F of temperature difference Correction formula Ambient temperature when pressure was ap plied Ambient temperature when pressure drop was checked x 0 01 Example When pressure 550 psig was applied the ambient temperature was 80 6 F 24 hours later when pressure drop 540 psi was checked ambient temperature was 68 F Thus 80 6 68 x 0 01 0 126 In this case the pressure drop of 0 126 was due to temperature difference therefore there is no leak in the refrigerant piping system LG REFRIGERANT PIPING CONNECTIONS
44. e electric work is not per formed properly it may result in fire electric shock physical injury or death SAFETY INSTRUCTIONS 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 There is risk of fire electric shock explosion physical injury or death Refer to local state and federal codes and use power wires of sufficient current capacity and rating Wires that are too small may generate heat and cause a fire Secure all field wiring connections with appropriate wire strain relief Improperly securing wires will create undue stress on equipment power lugs Inadequate connections may generate heat cause a fire and phys ical injury or death Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 5 suoljonijsuy Ajases Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual SAFETY INSTRUCTIONS OPERATION ADANGER Do not provide power to or operate the unit if it is flooded or submerged There is risk of fire electric shock physical injury or death Use a dedicated power source for this product There is risk of fire electric shock physical injury or death Do not operate the disconnect sw
45. e of fittings used and must account for the additional pressure losses in equivalent pipe length calculation The equivalent pipe length of each elbow must be added to each pipe segment Table 11 Table 11 Equivalent Piping Length for Piping Components Pos os or os 12 Pi pe Su pports Figure 25 Pipe Hanger Details Note A properly installed pipe system should be adequately supported to avoid pipe sagging Sagging pipes become oil traps that lead to equipment malfunction Pipe supports should never touch the pipe wall supports shall be installed outside around the primary pipe insulation jacket see Figure 25 Insulate the pipe first because pipe supports shall be installed outside around the primary pipe insulation jacket Clevis hangers should be used with shields between the hangers and insulation Field provided pipe supports should be designed to meet local codes If allowed by code use fiber straps or split ring hangers suspended from the ceil ing on all thread rods fiber straps or split ring hangers can be used as long as they do not compress the pipe insulation Place a second layer of insulation over the pipe insulation jacket to prevent chafing and compression of the primary insulation within the confines of the support pipe clamp LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved L
46. eak IPM Fault Compressor DC voltage was too high Current Transformer2 CT2 error Alternating current AC input too high DC Comp Position Error not providing rotation Locking Current to current transformer CT thermistor is too low Inverter Compressor Discharge Pipe D Pipe Overheat 40 CT Sensor Error Thermistor is disconnected orisshotedot J xo o oOo oS Outdoor unit coil outlet liquid line thermistor is disconnected or shorted out 6o Outdoor unit printed circuit board PCB EPROM check sum error Oooo XX eee OS Outdoor brushless direct current BLDC fan motor lock error Refer to Service Manuals posted on www lghvac com for a full description of all error codes and workarounds Due to our policy of continuous product innovation some specifications may change without notification LG 52 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 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 refrig erant 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 Ibs ft per 1 000 ft of air in an occupied space Buildings with twenty four 24 hour
47. efrigerant Piping Connections section of this manual to Piping continue with piping connections to the indoor unit Through 4 Optionally go to Electrical Connections section of this manual to continue with conduit electrical wiring to the indoor unit Figure 17 Rear View of IDU Drain Hose Holder L bracket Installation Plate Installation i Drain Hose Bottom of Drain Hose Holder Indoor Unit Due to our policy of continuous product innovation some specifications may change without notification LG 16 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL INSTALLATION GUIDELINES Piping Preparation Piping Preparation A WARNING Do not allow the refrigerant to leak during brazing if the refrigerant combusts it generates a toxic gas which can cause physical injury or death Do not braze in an enclosed location and always test for gas leaks before after brazing Gas leaks can cause physical injury or death After brazing check for refrigerant gas leaks Refrigerant gas leaks can cause physical injury or death Single Zone Pipe Connections Note 1 Do not use kinked pipe caused by excessive bending in one specif ic area on its length 2 Braze the pipes to the service valve pipe stub of the outdoor unit Creating a Flare Fitting Note One of the main causes of refrigerant leaks is defective flared connections
48. frigerant piping system between the outdoor unit and the indoor unit Duct Free Single Zone systems are provided with redundant systems that assure oil is properly returned to the compressor Sight glasses and solenoid valves may cause vapor to form in the liquid stream Note Over time dryers may deteriorate and introduce debris into the system The designer and installer should verify the refrigerant piping system is free of traps sagging pipes sight glasses filter dryers etc Field provided Isolation Ball Valves LG allows the installation of field supplied ball valves with Schrader ports at each indoor unit Full port isolation ball valves with Schrader ports positioned between valve and indoor unit rated for use with R410A refrigerant should be used on both the liquid and vapor lines If valves are not installed and a single indoor unit needs to be removed or repaired the entire system must be shut down and evacuated Position valves with a minimum distance of three 3 to six 6 inches of pipe on either side of the valve and placed between six 6 and twelve 12 inches from the run out pipe to the upstream main pipe If ball valves are installed closer to the indoor unit a section of pipe becomes a dead zone when the valves are closed where oil may accumulate Using Elbows Field supplied elbows are allowed as long as they are designed for use with R410A refrigerant The designer however should be cautious with the quantity and siz
49. gerant and the service valves closed Do not open service valves on the unit until all non condensibles have been removed from the piping sys tem and authorization to do so has been obtained from the commissioning agent There is a risk of physical injury or death Do not run the compressor with the service valves closed There is a risk of equipment damage explosion physical injury or death Periodically check that the outdoor frame is not damaged There is a risk of explosion physical injury or death Replace all control box and panel covers If cover panels are not installed securely dust water and animals may enter the unit causing fire electric shock and physical injury or death LG Always check for system refrigerant leaks after the unit has been installed or serviced Exposure to high concentration levels of refrigerant gas may lead to ill ness or death Wear protective gloves when handling equipment Sharp edges may cause personal injury Dispose the packing materials safely e Packing materials such as nails and other metal or wooden parts may cause puncture wounds or other injuries Tear apart and throw away plastic packaging bags so that children may not play with them and risk suffocation and death Install the unit considering the potential for strong winds or earthquakes Improper installation may cause the unit to fall over resulting in physical injury or death Do not change the settings
50. h enough to allow the unit to remain above possible snow drifts Mount the unit on a field provided snow stand at a minimum height that is equal to the average annual snowfall plus 20 inches Design the mounting base to prevent snow accumulation on the platform in front or back of the unit case If necessary provide a field fabricated hood to keep snow and ice and or drifting snow from accumulating on the coil surfaces Use inlet and discharge duct or hoods to prevent snow or rain from accumulating on the fan inlet and outlet guards Best practice prevents snow from accumulating on top of the unit Consider tie down requirements in case of high winds or where required by local codes Note When deciding on a location to place the outdoor unit be sure to choose an area where run off from defrost will not accumulate and freeze on sidewalks or driveways Proper airflow through the Single Zone outdoor unit coil is critical for correct unit operation When installing consider service inlet and outlet and minimum allowable space requirements as illustrated in the diagrams below Minimum Clearance Requirements for Single Zone Outdoor Unit Clearance Specific clearance requirements in the diagrams on the next page are for the single zone wall mount systems Figure 4 shows the overall minimum clearances that must be observed for safe operation and adequate airflow around the outdoor unit When placing the outdoor unit under an overhang awning sunroof or
51. ht for an example of how a circuit breaker Main Power Source should be wired through to the Single Zone system AWARNING Be sure there is no power going through the Single Zone system Air Circuit Breaker before proceeding with these connections as it may result in elec Conditioner Use a circuit breaker tric shock Familiarize yourself with the location of the circuit breaker and be SI ainne delay ree sure that all power is cut to the Single Zone unit as it may result in electric shock 1 Using a phillips head screwdriver remove the conduit panel cover from the outside unit 2 Before proceeding inspect all wiring inside the casing to be sure they are secure and have not come loose during transportation and installation of the outdoor unit e Loose wires can cause the wiring to burn out quickly e Inspect wires for any damage or cracks manufacturing defects 3 Confirm that electrical power supply capacity is sufficient to run the unit See specifications sheets at the beginning of this installation manual for details on power 4 Confirm that you are using the right gauge size for wiring to proceed 5 Using a screwdriver connect the wires as shown in Figures 64 and 65 e Each wire should be securely attached to the terminal block Bundle the cabling by using a cable restrainer e Pay attention to the location connection of the green yellow grounding cable as in some models the connection may be located to the side of
52. ice panel Do not block the inlet or outlet Unit may malfunction Securely attach the electrical part cover to the indoor unit and the service panel to the outdoor unit Non secured covers can result in fire due to dust or water in the service panel Periodically verify the equipment mounts have not deteriorated If the base collapses the unit could fall and cause property damage or product failure Do not allow water dirt or animals to enter the unit There is risk of unit failure LG Safety INStrUCtiOnS sssrini 3 General Data issiga ania hectic sxasescasttesatnssansicciasasdevansettceesdagesseaseatseend Unit Nomenclature Single Zone High Efficiency Unit Specifications 0 cece 9 ECCI ICAL scinn pon a laces 10 R410A Refigerani iiccaticeiaccatiiniancata acta acancarananent 10 General Installation GuidelineS csssssssssessesseeessesseeesseseeeesseseees 11 Location Selection eseeecectcsectseeteeeesesseeeetseeseeesseetetetasesaeeteteseaes 11 Oceanside Applications ccccccecccesscsescsestesesneseecsesesessetstesansneeees 12 Mounting Bolt Location Required Cl ranCes scccecccsecsseccecesssecesetsssssseecseestscsasaeeteesanetaees 4 Mounting of Indoor Unit Installation Plat ccccsseeiseeeeseeees 15 Mounting of Indoor Unit Pipito PRO DA AUON ssrin aaa Piping Materials and Handling s ssssrrsrrsrrsssnrrsnnnnrnnanrrsrnnnnsanrnennna 18 Piping SUpport orsa rti a a Underground Piping
53. ient conditions and local codes All insulation joints shall be glued with no air gaps Insulation material shall fit snugly against the refrigeration pipe with no air space between it and the pipe Insulation passing through pipe hangers inside conduit and or sleeves must not be compressed Protect insulation inside hangers and supports with a second layer All pipe insulation exposed to the sun and outdoor elements shall be properly protected with PVC aluminum vapor barrier or alternatively placed in a weather resistant enclosure such as a pipe rack with a top cover and meet local codes The design engineer should perform calculations to determine if the factory supplied insulation jackets are sufficient to meet local codes and avoid sweating Add additional insulation if necessary Mark all pipes at the point where the insulation jacket ends Remove the jacket Install field provided insulation on the run out and main trunk pipes first Peel the adhesive glue protector slip from the insulation jacket and install the clam shell jacket over the fitting For specific insulation procedures see Refrigerant Piping Connections section in this installation manual LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 19 s ulj p ng uoejje suj eE1BUaD Single Zone High Efficiency
54. inal Block Connecting Cables Cable Restrainer Grounding Cable Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 43 Bulli 1 911 99 3 Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual ELECTRICAL WIRING Outdoor Unit Electrical Connections Connecting Outdoor Unit Electrical Wiring The general guidelines for connecting electrical and communication cables to the outdoor unit are the same for each Single Zone High Effi ciency Wall Mount system however the actual connections on the terminal block will differ See each illustration for the model that you are installing for correct wiring of each terminal block A WARNING Be sure that main power to the unit is completely off before proceeding with these steps Follow all safety and warning information out lined at the beginning of this manual Failure to do so may cause bodily injury Be sure that a circuit breaker or some other emergency power cutoff device is in place before any power wiring is done to the system Failure to do so may cause bodily injury or death Never touch any power lines or live cables before all power is cutoff to the system To do so may cause bodily injury or death Procedure Figure 63 Circuit Breaker Refer to Figure 63 at rig
55. istered trademark of LG Corp 29 SUO IJDOUUOD Buldig JUueIABIyaY Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual REFRIGERANT PIPING CONNECTIONS Indoor Unit Connections Single Zone High Efficiency Wall Mount Piping to Indoor Unit Follow the steps below and refer to the illustrations on this page to connect piping to the Single Zone indoor unit To see specific bundling of piping and drain hose see Section Bundling and Cutting Line on page 31 Also refer back to Drain Hose Guidelines section for proper drainage slope during piping procedure 1 Pull the screw cap at the bottom of the indoor unit Figure 39 4 From the rear of the indoor unit pull the tubing holder away from 2 Unscrew the three 3 screws at the bottom of the chassis cover the unit as oe in Figure 40 3 Remove the chassis cover being careful not to scratch the main 5 Remove the pipe port cover horizontal vane 6 Position the tubing by unfolding the tubing and bending the tubing l f slowly downward first as shown below Figure 39 Removing Chassis Cover from Indoor Unit Note Bending the tubing directly left or right without bending downward first may cause damage Figure 40 Bending Pipe Tubing at Rear of Indoor Unit Bend from lt downward position han Do not bend tubing directly backwards or to the sides without bending downward first This may cause damage Due to our po
56. it does not operate e Hallway or a dormitory or school etc 4 Special location Non Air conditioned location If conditions 1 and 2 below are present 1 When the piping passes through an indoor area where the indoor unit does not operate 2 When the humidity is high and there is no air flow in the location where the piping is installed The thickness of the above insulation material is based on heat conductivity of 0 61 Btu in h ft F LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 33 SUOI DOUUOD BHuldig JueIABIIyaY Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual REFRIGERANT PIPING CONNECTIONS Pipe Sleeves at Penetrations Pipe Sleeves at Penetrations LG requires that all pipe penetrations through walls floors and pipes buried underground be properly insulated and routed through an appropriate wall sleeve of sufficient size to prevent compression of refrigerant pipe insulation and free movement of the pipe within the sleeve Underground refrigerant pipe shall be routed inside a protective sleeve to prevent insulation deterioration Figure 49 Pipe Sleeves at Penetrations fra Q A Area between fire resistant Floor fire resistance Roof pipe shaft insulation and b
57. itch with wet hands There is risk of fire electric shock physical injury or death AWARNING Do not allow water dirt or animals to enter the unit There is risk of fire electric shock physical injury or death Avoid excessive cooling and periodically perform ventilation to the unit Inadequate ventilation is a health hazard Do not touch the refrigerant piping during or after operation It can cause burns or frostbite Do not operate the unit with the panel s or protective cover s removed keep fingers and clothing away from moving parts The rotating hot cold and high voltage parts of the unit can cause physical injury or death A CAUTION To avoid physical injury use caution when cleaning or servicing the air conditioner Note Clean up the site after installation is finished and check that no metal scraps screws or bits of wiring have been left inside or surrounding the unit Do not use this equipment in mission critical or special purpose applications such as preserving foods works of art wine coolers or refrigeration The equipment is designed to provide comfort cooling and heating Oil steam sulfuric smoke etc can significantly reduce the performance of the unit or damage its parts Provide power to the compressor crankcase heaters at least six 6 hours before operation begins Starting operation with a cold compressor sump s may result in severe bearing damage to the compressor s Keep the
58. late 1 Hook the indoor unit onto the upper portion of the installation plate Figure 14 Figure 14 Mounting Unit on Installation Plate 2 Engage the hooks at the top of the indoor unit with the upper edge of the installation plate Ensure that the hooks are properly seated on the installation plate by moving it left and right 3 Move the bottom of indoor unit towards the installation plate to anchor to wall Figure 145 It helps to press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots e You will hear a clicking sound as the bottom attaches to the installation plate successfully 4 Finish by inserting and tightening two type C screws into the bottom of the installa tion plate Figure 16 Pay attention to the positioning of the piping through any wall as shown in the figure as you insert the screws to the indoor unit Preparing for Piping Electrical Connection 1 To prepare indoor unit for piping disengage bottom on indoor unit from installation plate by reversing step 3 from previous procedure e This step will separate the indoor unit s bottom side from the wall mount in order to route drain hose correctly See Figure 17 for a reference of the rear view of the Figure 16 Mounting Bottom of Unit to Installation Plate indoor unit 2 Swing drain hose holder L bracket out and anchor as shown in Figure 15 against installation plate 3 Optionally go to R
59. licy of continuous product innovation some specifications may change without notification LG 30 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp REFRIGERANT PIPING CONNECTIONS Bundling and Cutting Line Piping and cabling must be insulated and bundled together correctly for safety and usage Follow proper methods and procedures as outlined here and on the next pages to ensure installation and piping are correctly installed As shown in Figure 41 the connection pipe along with the indoor Figure 41 Piping with Insulation Material unit pipe are fully encased in insulation material 1 Bind together the two pipes using vinyl tape Make sure there Insulation material are no gaps during the binding 2 Be sure the tube cutting line is placed upward Figure 42 3 Verify that rear piping house section is wrapped with vinyl tape e Use a narrow type of vinyl tape for this step 4 Continue to wrap the indoor unit pipe as connected to the outdoor connection pipe as shown in Figure 43 Figure 42 Correct Cutting Line Placement Figure 43 Wrapping Connection Pipe to Indoor Unit s Pipe 4 Cutting Line Connection pipe ae unit pipe P Vinyl tape wide Wrap with vinyl tape Connecting cable Pipe a i Cutting Line Vinyl tape narrow Gas Pipe Liquid Pipe V Correct Incorrect 5 Using a wider vinyl tape bundle the piping and drain hose togeth Figure 44 Bundling
60. life to recover recycle reclaim or destroy R410A refrigerant according to applicable regulations 40 CFR Part 82 Subpart F under section 608 of CAA Sound Pressure levels are tested in an anechoic chamber under ISO Standard 1996 5All power communication cables to be minimum 18 AWG 4 conductor stranded shielded and must comply with applicable and national code 5Piping lengths are equivalent LG 3 8 27132 5 8 9 8 98 4 24 6 49 2 Power wiring is field supplied and must comply with the applicable local and national codes This unit comes with a dry helium charge This data is rated 0 ft above sea level with 24 6 of refrigerant line per indoor unit and a 0 ft level difference outdoor and indoor units Cooling capacity rating obtained with air entering the indoor unit at 80 F dry bulb DB and 67 F wet bulb WB and outdoor ambient conditions of 95 F dry bulb DB and 75 F wet bulb WB Heating capacity rating obtained with air entering the indoor unit at 70 F dry bulb DB and 59 F wet bulb WB and outdoor ambient conditions of 47 F dry bulb DB and 43 F wet bulb WB Sieja gijo Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual GENERAL D
61. ll 090HSV4 120HSV4 180HSV4 Follow the procedure and best practices below when mounting the Figure 9 Installation Plate Screws O90HSV4 120HSV4 indoor unit s plate to a wall Piace a levelon raised tab A AT 442 AT 442 i i j iti Outline ypo ype 1 Before installation of the plate confirm the position the screw B Type 434 B Type 439 types A or B between chassis and installation plate 2 Mount the installation plate horizontally by aligning the centerline using a leveling tool 3 Use provided screws when mounting the plating e If mounting the unit on concrete wall use field supplied anchor bolts 4 Observe the left and right rear piping clearance when drilling into the wall as shown in Figure 11 090HSV4 120HSV4 and Figures f z Bp eae 12 180HSV4 Right rear piping Note Select location carefully Unit should be anchored to a strong wall to pre vent unnecessary vibration AWARNING e 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 Power wiring can cause serious bodily injury or death Refer to Drilling Piping Hole in the Wall on page 16 as you follow procedure to install plate Figure 11 Installation Plate O90HSV4 120HSV4 Figure 12 Installa
62. lled by a qualified technician Do not connect ground wire to refrigerant gas or water piping to lightning rods to telephone ground wiring or to the building plumbing system Failure to properly provide a National Electrical Code approved earth ground can result in electric shock physical injury or death Install appropriately sized breakers fuses overcurrent protection switches and wiring in accordance with local state and National Electrical Code regulations related to electrical equipment and wiring and following the instructions in this manual Using an over sized breaker or fuse may result in electric shock physical injury or death ELECTRICAL WIRING General Information and Safety Guidelines Note Consider ambient conditions temperature direct sunlight inclem ent weather etc when selecting installing and connecting the power wiring e Properly ground the Single Zone outdoor and indoor unit Improp erly ground wire can cause communication problems from electrical noise and motor current leakage Ground wiring must always be installed by a qualified technician e If the system operates in reversed phase it may damage the com pressors and other components If there is a possibility of reversed phase phase loss momentary blackout or the power goes on and off while the system is operating install a field supplied phase loss protection circuit Do not connect ground wire to refrigerant gas or w
63. low must be followed to prevent product malfunction property damage injury or death to the user or other people Incor rect operation due to ignoring any instructions will cause harm or damage The level of seriousness is classified by the symbols described below TABLE OF SYMBOLS This symbol indicates an imminently hazardous situation which if not avoided will result in death or serious injury ADANGER A WARN NG This symbol indicates a potentially hazardous situation which if not avoided could result in death or serious injury This symbol indicates a potentially hazardous situation which if not avoided may result in minor or A CAUTION moderate injun This symbol Indicates situations that may result in equipment or property damage accidents only Oo This symbol indicates an action should not be completed INSTALLATION ADANGER Don t store or use flammable gas combustibles near the unit There is risk of fire explosion and physical injury or death AWARNING Do not install remove or re install the unit by yourself customer Ask the dealer or an authorized technician to install the unit Improper installation by the user may result in water leakage fire explosion electric shock physical injury or death For replacement of an installed unit always contact an authorized LG service provider There is risk of fire electric shock explosion and physical injury or death The unit is shipped with refri
64. lve for air purging If it is not available use a Stop valve for this purpose Be sure that the knob of the three way valve is always kept close Figure 51 Evacuation Setup 4 Outdoor Unit A Table 17 Evacuation Table Evacuation Table ping Bundle Tubing Less than 33 ft Tubing More than 33 ft Required time for evacuation when 30 gal h vacuum pump is used Pressure Gauge Close Charge Hose Vacuum Pump LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 35 SUO IJDOUUOD Buldig JUueIABIIyaY Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual REFRIGERANT PIPING CONNECTIONS Leak Test Soap Method Check Leak Test Note Perform the leak test by pressurizing nitrogen gas to 550 psi on both the liquid and gas pipes Test with the piping service valves closed If the pressure does not drop for twenty four 24 hours the system passes the test If the pressure drops there is a nitrogen leak in the sys tem Find the leak repair and then test again Pressure Gauge Hookup 1 Connect the manifold valve which includes the pressure gaug es along with dry nitrogen gas cylinder to the service valves using charge hose Figure 52 2 Pressurize the system to maximum 150 P S 1 G with dry
65. m must be engineered to allow free expansion to occur When a segment of pipe is mounted between two fixed points provisions must be provided to allow pipe expansion to naturally occur The most common method is the inclusion of expansion Loop or U bends Each segment of pipe has a natural fixed point where no movement occurs This fixed point is located at the center point of the segment assuming the entire pipe is insulated in a similar fashion The natural fixed point of the pipe segment is typically where the expansion Loop or U bend should be Linear pipe expansion can be calculated using the following formula LE CxLx T T x 12 LE Anticipated linear tubing expansion in C Constant For copper 9 2 x 10 in in F L Length of pipe ft Tk Refrigerant pipe temperature F T Ambient air temperature F 12 Inches to feet conversion 12 in ft LG Figure 23 Installing Piping Above and Below an Obstacle _1 i Minimum i lt Above an obstacle Below an obstacle 1 From Table 9 find the row corresponding with the actual length of the straight pipe segment 2 Estimate the minimum and maximum temperature of the pipe In the column showing the minimum pipe temperature look up the anticipated expansion distance Do the same for the maximum pipe temperature 3 Calculate the difference in the two expansion distance values The result will be the anticipated change in pipe length
66. mains in the piping after the system is evacuated for two 2 hours break the vacuum down to 7 5 psi with nitrogen gas 2 Evacuate the system again with the vacuum pump for at least one 1 hour to 500 microns 3 If the system does not reach 500 microns within two 2 hours repeat the vacuum break and evacuation procedure until the gauge does not rise Pump Down Procedure This procedure is performed when a unit has to be relocated or the refrigerant circuit is serviced Pumping down is a term used to mean collecting all refrigerant into the outdoor unit without the loss of any refrigerant Follow the procedure and guidelines below to safely collect refrigerant back into the outdoor unit Always adhere to and be familiar with local codes regarding the handling of refrigerant The system must be placed in Cooling mode in order to proceed with the pump down procedure If needed refer to the sections below for proper steps to place the unit into Cooling Mode 1 Connect a low pressure gauge with manifold hose to the charge port on the gas line service valve Open the gas line service valve halfway Purge the air in the manifold hose using the refrigerant Close the liquid line service valve all the way ao om FF ON ately turn the unit off Turn on the units power switch and start the cooling mode operation Observe the pressure gauge reading When it gets to 1 to 0 5 kg cm 14 2 to 7 1 P S I G fully close the gas line
67. mote controller te ee refer to its owner s manual Cover S Procedure 1 The remote controller needs two AAA 1 5V batteries for operation Remove the battery cover from the back of the remote controller Figure 53 Push downward on the tab at the top of the battery cover and then lift up to remove 2 Insert the two new batteries Align batteries by the and sides e The interior battery compartment of the remote controller will have clear markings for the and placement 3 Verify that the batteries have clicked into the compartment and are firmly engaged with the contacts on either side of them 4 Reattached the back cover of the remote controller 5 Proceed with powering on the remote controller and usage as needed LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 37 1 Push down on tab 2 Lift cover SUOIJDOUUOD BHuldig JUueIABIIyaY Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual REFRIGERANT PIPING CONNECTIONS Pump Down Cooling Only Mode AWARNING Never air purge with refrigerant as it can lead to refrigerant leakage which can cause bodily harm and injury especially if inhaled Note Use a vacuum pump that can evacuate down to 500 microns 1 If moisture re
68. nd to remain in the piping After air purging and evacuating the lines be sure to take a leak test for all piping and tubing Note Insufficient or incorrectly done air purging may lead to the following Figure 50 Removing Service Valve Caps Outdoor Unit Pressure in the system can rise e Operating current can rise Cooling or heating efficiency falls e Moisture in the refrigerant circuit may freeze and block capillary tubing e Water can lead to corrosion of parts in the system Evacuation Outdoor Unit Air Purging with a Vacuum Pump Preparation Steps 1 Verify that each set of pipes liquid and gas are properly con nected between the indoor and outdoor unit Gas side e Verify that all wiring for a test run has been completed 3jway valve Clos PEEN 2 Remove service valve caps from the gas and liquid valves at the oe outdoor unit Figure 50 2 way valve Close i ae Both the liquid and gas side service valves at the outdoor unit NJ ee should be kept closed at this step ee Valve 3 Set up the purging hose connections by referring to Figure 51 DN e 4 Do a Leak Test by proceeding to Soap Water Method Leak Testing section on next page e Successful leak testing must be performed before Evacuation can begin Air Purging Evacuation Setup 5 Go to Evacuation section on page 37 to complete the purg z ing process X __ Indoor Unit Note Be sure to use a manifold va
69. ngle Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual TROUBLESHOOTING Error Codes Troubleshooting Using Error Codes Refer to Tables 20 and Table 22 for error codes that are generat ed from the indoor and outdoor units These codes are the most common that will manifest through these units Your particular model duct free system might generate additional codes not listed here Please contact LG Support if you see these types of errors and a simple power down and boot up has not corrected the issue You should not attempt to fix the system yourself Error Codes e Refer to the figures below for your particular indoor unit s LED configuration e Indicate different types of unit failures assists in self diagnosis and to track the frequency of occurrence Error codes are shown on the LEDs of indoor units wired remote controller the Single Zone unit control board and LG Monitoring View LGMV Diagnostic Software e If two or more errors occur simultaneously the lower error code number is displayed first e After error is resolved the error code does not display Table 20 Single Zone Wall Mounted Indoor Unit Error Codes E x x e indooruntoutet ppe sosoremor OOOO l o mortem 8 X Error ee Due to our policy of continuous product innovation some specifications may change without notification 50 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a
70. nitrogen gas and close the cylinder valve when the gauge reading reaches 150 P S I G ADANGER Use of combustible gases including oxygen may result in fire or explo sion A WARNING Using nitrogen runs the risk of fire and explosion Inert gas nitrogen should be used when checking plumbing leaks cleaning or repairs of pipes etc Note To avoid nitrogen entering the refrigerant system in a liquid state the top of the cylinder must be higher than its bottom when you pressurize the system Be sure cylinder is used in a vertical standing position Soap Water Method Leak Testing 1 Remove the caps from the 2 way and 3 way valves See Figure 50 2 To open the 2 way valve turn the valve stem counter clockwise approximately 90 wait for about 2 to 3 seconds and close it 3 While running the nitrogen gas tank hookup apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit connections by using a soft brush 4 While running the pressure gauge system observe the connec tions for any leaks e If you see bubbles appearing at any of the connection points joints at either inside and outside units it is an indication of a leak 5 Make a note of where the leaks are coming from along the liquid and gas piping 6 Disengage the nitrogen pressure by loosening the charge hose connector at the nitrogen cylinder Figure 52 above 7 Once system pressure is reduced back to normal range
71. occupancy allow half of that concentration ASHRAE Standards 15 and 34 assume that if a system develops a leak its entire refrigerant charge will dump into the area where the leak occurs To meet ASHRAE Standards 15 and 34 calculate the refrigerant concentration that may occur in the smallest room volume on the system and compare the results to the maximum allowable concentration number see below for information on how to calculate the refrigerant concentration Also consult state and local codes in regards to refrigerant safety AWARNING Verify the maximum refrigerant concentration level in the space where the indoor unit will be mounted meets the concentration limit for the application If the refrigerant leaks and safety limits are exceeded it could result in personal injuries or death from oxygen depletion Note Take appropriate actions at the end of HVAC equipment life to recover recycle reclaim or destroy R410A refrigerant according to applicable US EPA rules To calculate the potential refrigerant concentration level RCL Refrigerant Concentration Limit RCL Calculations 1 Measure the occupied space dimensions in feet To calculate total refrigerant amount per system 2 Calculate the cubic foot volume of air in the smallest occupied a ae ed cae ai sh space To obtain a detailed overview of the RCL perform the Paticerant a Refrigerant charge same calculations to the second smallest zone the third smallest Outdoor Unit T
72. of the protection devices If the pressure switch thermal switch or other protection device is shorted and forced to operate improperly or parts other than those specified by LG are used there is risk of fire electric shock explosion and physical injury or death Do not install the unit on a defective stand There is a risk of physical injury Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 3 suoljonijsuy Ajayes Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual SAFETY INSTRUCTIONS INSTALLATION CONTINUED AWARNING 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 If the refrigerant leaks and safety limits are exceeded it could result in personal injuries or death from oxygen depletion CAUTION Be very careful when transporting the product Do not attempt to carry the product without assistance Some products use polypropylene bands for packaging Do not use polypropylene bands to lift the unit e Suspend the unit from the base at specified positions
73. onnections as there may be a risk of electrical shock and bodily injury 1 At the bottom panel of the indoor unit unsnap the latches which cover the phillips screw heads as shown in Figure 57 e Normally there are three 3 screws on the panel however your indoor unit model may differ 2 Using a phillips head screwdriver remove the screws from the bottom panel of the indoor unit and set aside Figure 58 3 Remove the bottom panel Figure 59 e Removal is necessary to gain access to the terminal block which is situated at the bottom of most indoor units e Note that the electrical communications wiring is usually routed through the back bottom of the indoor unit through a knockout panel as shown on the next page Figure 60 4 Using a screwdriver connect the wires as shown on the next page Figure 61 e Each wire should be securely attached to the terminal block e Pay attention to the location connection of the green yellow ground cable Due to our policy of continuous product innovation some specifications may change without notification 42 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Figure 57 Latch over Screws on Bottom Panel Indoor Unit Figure 58 Remove Screws from Bottom Panel Connecting Indoor Unit Electrica ELECTRICAL WIRING Indoor Unit Electrical Connections Wiring Continued 5 When done reattach the bottom panel
74. ose foso s o2 020 025 oso 033 035 oae o2 os fous fous oso oss oss ose ose oes 070 073 075 oo o21 021 030 os oe 042 oas oa ost oss os oso os os os ose 078 oes osr oeo 1Pipe length baseline temperature 0 F Expansion of Carbon Copper and Stainless Steel Pipe The Engineers Toolbox www engineeringtoolbox com Figure 24 Coiled Expansion Loops and Offsets wee eee ee ee 4 EE 4 Large Tubing U bend gt 3 4 in Loop Small Tubing U bend lt 3 4 in Table 10 Radii of Coiled Expansion Loops and Developed Lengths of Expansion Offsets Anticipated Linear Nominal Tube Size OD inches Expansion LE inches OO Rt O Oooo 7 S ee D f fia S o y 2 y ee Due to our policy of continuous product innovation some specifications may change without notification LG 22 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL INSTALLATION GUIDELINES Piping Materials and Handling Piping Support Pipe Bends When bending soft copper use long radius bends Refer to the Radii of Coiled Expansion Loops and Developed Lengths of Expansion Offsets table for minimum radius specifications as shown on previous page In line Refrigeration Components Components such as oil traps solenoid valves filter dryers sight glasses tee fittings and other after market accessories are not permitted on the re
75. ose is set in place always follow with evacuation and leakage testing of all piping to be sure all piping is properly sealed Re check and retest as necessary Drain hose is routed from the indoor unit through the structure wall to the outdoor It should slope at an angle where it is higher at the indoor unit and lower toward the outdoor area thereby letting gravity push any condensation down and out See Figure 34 for proper drainage slope Avoid piping the drain hose as shown in Figure 35 These methods are incorrect and can cause leakage at the indoor unit site Figure 34 Correct Slope Angle for Drain Hose Correct Drainage Slope Downward slope to outdoor for proper drainage Figure 35 Correct Slope Angle for Drain Hose Incorrect Drainage Setup Upward slope to outdoor Indoor Unit A can cause indoor H leaks Water leakage Accumulated drain water Air Indoor Unit N 0 4 6 0 Water Indoor Wavin jeakage Unit Pipi Tip of drain hose _Fiping dipped in water Indoor Unt N 6 0 6 Water leakage Ditch Less than 2 Inch gap from ground Drain Hose ms gap g a Due to our policy of continuous product innovation some specifications may change without notification LG 28 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp REFRIGERANT PIPING CONNECTIONS Outdoor Unit Connections Single Zone High Efficiency Wall Mount Outdoor Unit
76. other roof like structure observe the clearance requirements as shown in Figure 5 for height in relation to the unit This clearance ensures that heat radiation from the condenser is not restricted around the unit See Figures 6 and 7 for recommendations when other obstacles are present Adhere to all clearance requirements if installing the unit on a roof Be sure to level the unit and ensure that the unit is adequately anchored Consult local codes for rooftop mounting requirements LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 13 s ulj p ng uoejje suj je12u 29 Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual GENERAL INSTALLATION GUIDELINES Required Clearances Figure 4 Outdoor Unit Clearances More than 24 4 More than More than i 12 More than More than 28 24 Unit inch Note Figure 5 Outdoor Unit Sunroof Awning Clearances More than 12 More than 12 More than 24 More th ae Unit inch Do not place the unit where animals and or plants will be in the path of the warm air or where the warm air and or noise will disturb neighbors Figure 6 Clearances Where There Are Obstacles on Both Air Inlet and Outlet Sides Obstacle on the Outlet Side is Lower Than the
77. oundary wall N 7 a Sates N N N N N 40 in 40 in Note A Sleeve Insulation Lagging D Caulk Band Water resistant layer Sleeve with edge Lagging D Mortar or other fire resistant caulk JD Fire resistant insulation When filling an access hole with mortar cover the area with steel plate so that the insulation will not fall through For this area use fire resistant materials for both the insulation and cover Vinyl cover should not be used All floor and wall penetrations should be properly sized and large enough to accommodate pipe diameter plus insulation thickness Due to our policy of continuous product innovation some specifications may change without notification LG 34 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp REFRIGERANT PIPING CONNECTIONS Air Purging Air Purging Best Practices Air purging is done to the piping system after all piping has been connected between the indoor and outdoor unit This step is necessary to be sure that air refrigerant can flow through the system without danger of leakage or pressure issues Air and moisture that is left in the pip ing can lead to undesirable results and can cause damage to the working unit It is important to go through a complete air purging cycle to be sure that the lines are cleared out Note that you may have to repeat this process should any air or moisture be fou
78. pecifications Table 1 Single Zone High Efficiency Unit Specifications Single Zone High Efficiency Units LS090HSV4 LS120HSV4 LS180HSV4 System Model Number IDU ODU LSNOQOHSV4 LSUO90HSV4 LSN120HSV4 LSU120HSV4 LSN180HSV4 LSU180HSV4 o o on200 8200S Y Nominal Cooling Capacity Btu h 9 000 11 200 18 200 Cooling Power Input kW o oe 090 1 45 Nominal Heating Capacity Btu h 10 800 13 300 22 000 COP HSPF Heating Power Input kW COP 8 Power Supply V Hz 208 230 60 1 Outdoor Unit Operating Range Cooling F DB Heating F WB Indoor Unit Operating Range Cooling F WB Heating F DB 14 to 118 4 to 65 53 to 75 60 to 86 ejeqg ONpold Unit Data Refrigerant Type Refrigerant Control IDU Sound Pressure dB A HIMIL Sleep 38 33 23 19 39 33 23 19 Oo 5 S B k ODU Sound Pressuret dB A 45 Power Communication Cable No x AWG IDU Net Shipping Weight Ibs 20 26 20 26 ODU Net Shipping Weight Ibs 75 19 75 19 O ompressor IDU Type Qt ODU Type Qt Motor Drive gt R410A EEV 45 40 35 29 45 4x18 31 36 121 131 ol oo Twin Rotary 1 735 622 509 399 2 119 Liquid Line in OD Vapor Line in OD EEV Electronic Expansion Valve IDU Indoor Unit ODU Outdoor Unit Power Input is rated at high speed Optional Low Ambient Wind Baffle Kit allows operation down to 0 F in cooling mode Take appropriate actions at the end of HVAC equipment
79. phenomena 2 Position the outdoor unit so that its airflow fans are not buried by direct heavy snowfall If snow piles up and blocks the airflow the system may malfunction Remove any snow that has accumulated 3 15 16 inches or more on the top of the outdoor unit Place the outdoor unit on a raised platform at least 19 11 16 inches higher than the average annual snowfall for the area In environments where there is a possibility of heavy snow the frame height must be more than two 2 times the amount of average annual snowfall and should not exceed the width of the outdoor unit If the frame width is wider than the outdoor unit snow may accumulate 5 Install a snow protection hood 6 To prevent snow and heavy rain from entering the outdoor unit install the suction and discharge ducts facing away from direct winds 7 Additionally the following conditions should be taken into consideration when the unit operates in defrost mode If the outdoor unit is installed in a highly humid environment near an ocean lake etc ensure that the site is well ventilated and has a lot of natural light Example Install on a rooftop Sidewalks or parking lots near the outdoor unit may accumulate moisture after unit operates in defrost mode that can turn to ice Note The indoor unit may take longer to provide heat or heating performance will be reduced in winter if the unit is installed 1 In a narrow shady location 2 Near a location tha
80. r current transducer value pressure and high Outdoor air temperature pressure levels r Actual high pressure saturation temperature Error code display Actual low pressure saturation temperature S mode Communication indicators e Suction temperature e Inverter compressor discharge temperature e Front outdoor coil pipe temperature e Back outdoor coil pipe temperature e Liquid line pipe temperature e Subcooler inlet temperature e IDU capacity e IDU operating mode IDU fan speed e IDU EEV position IDU room temperature e Target high pressure e Target low pressure e PCB printed circuit board version Software version e Installer name Model number of IDUs e IDU inlet pipe temperature eubeools outei temperature Site name e IDU outlet pipe temperature Average indoor unit IDU pipe temperature Total a ted IDU IDU error code e Inverter compressor operation indicator light pene OT ones 2 Additional screens can be accessed by tabs on the main screen Figure 67 MV Cycleview Additional screens include the following 1 Cycleview Figure 67 Graphic of internal components including e Compressors showing actual speeds EEVs IDUs e Temperature and pressure sensors e Four way reversing valve LOX Cycts Moniter 2 Graph Full screen graph of actual high and low pressures and high and low pressure limits A sliding bar enables user to go back in time and view data 3 Control FTN Enables
81. registered trademark of LG Corp REFRIGERANT PIPING CONNECTIONS Refrigerant Piping Insulation Minimum Refrigerant Pipe Ethylene Propylene Diene Methylene EPDM Insulation Wall Thickness Requirements Note Follow locals codes when selecting EPDM insulation wall thickness E 16 Insulation Guidelines for e A and Special Circumstances Air Air conditioned location location Non air conditioned location Classification 1 Typical location 2 Special location 3 Typical location 4 Special location 01 4 inch Liquid pipe 93 8 inch 1 2 inch 1 2 inch 1 2 inch 1 2 inch 2901 2 inch 1 2 inch 1 2 inch 1 2 inch 1 2 inch 93 8 inch 61 2 inch 5 8 inch 03 4 inch Neneh 3 4 inch 3 4 inch 97 8 inch Vapor pipe 1 inch 1 inch 1 1 8 inches 1 1 4 inches 1 3 8 inches 3 4 inch 1 inch 1 1 2 inches 1 3 4 inches 1 Typical location Air conditioned location When the piping passes through an indoor area where the indoor unit operates e Apartment classroom office mall hospital etc 2 Special location Air conditioned location 1 When the location is air conditioned but there is severe temperature humidity difference due to high ceilings e Church auditorium theater lobby etc 2 When the location is air conditioned but internal temperature humidity are high Bathroom swimming pool locker room etc 3 Typical location Non Air conditioned location When the piping passes through an indoor area where the indoor un
82. rim Charge zone until the RCL is obtained for all zones Also pay special attention to areas such as basements etc where refrigerant Total System Refrigerant Charge Ibs cannot dissipate easily RCL Ibs ft Volume of Smallest Occupied Space ft 3 Divide the refrigerant charge of the Single Zone system serving the area in pounds by the results of step 1 4 If the calculation indicates that the potential refrigerant concen tration level is higher than the allowed RCL increase the cubic volume of the smallest occupied space or modify the piping system design 5 The allowable RCL limit for most applications must be equal to or less than 0 026 lbs ft In special occupied spaces however such as hospitals and nursing homes where occupants may have limited mobility the allowable RCL limit is cut in half See ASHRAE Standard 34 2007 and local codes for detailed information American Society of Heating Refrigeration and Air Conditioning Engi neers Inc ASHRAE Atlanta GA ASHRAE Inc Information about ASHRAE Standard 15 2010 34 2010 and addenda current as of the date of this publication LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp Due to our policy of continuous product innovation some specifications may change without notification LG 53 sye JURIOBIaYy 10 SUOIINeED Single Zone High Efficiency Standard Extended Pipe and
83. rp Refrigerant oil degradation Poor insulation of the compressor System does not operate properly EEVs and capillary tubes become clogged Remove dust from the piping Piping ends should remain capped until connections are complete Connect piping properly at the side of the unit Remove caps only after the piping is cut and burrs are removed Retain the cap on the piping when passing it through walls etc Refrigerant gas leaks shortages Refrigerant oil degradation Poor insulation of the compressor System does not operate properly Test system for air tightness Perform brazing procedures that comply with all applicable standards Perform flaring procedures that comply with all applicable standards Perform flanging procedures that comply with all applicable standards Ensure that refrigerant lines are pressure tested to 550 psig LG GENERAL INSTALLATION GUIDELINES Piping Materials and Handling Brazing Practices Figure 22 Refrigerant Pipe Brazing Refrigerant ae z Ipin i 5 Note ping S Pipe to masure Tear It is imperative to keep the piping system free of contaminants and debris such as copper burrs slag or carbon dust during installation Contaminants can result in mechanical failure of the system All joints are brazed in the field Duct Free System Single Zone Inverter refrigeration system components contain very small capillar
84. s double back sections and sizes as well as the quantity and type of elbows used All long runs of straight pipe were provided with expansion loops A torque wrench and backup wrench were used to tighten all flare connections The back side of all flares were lubricated with a small drop of PVE refrigeration oil before tightening flare fittings Ensure all field made flares are 45 Use factory supplied flare nuts only Pipe segments were properly supported and all wall penetrations were sleeved Pipe insulation was not compressed at any point No oil traps solenoid valves sight glasses filter driers or any other unauthorized refrigerant specialties were present Best practice including a minimum of 20 of straight pipe was installed between each elbow 54 Due to our policy of continuous product innovation some specifications may change without notification LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp INSTALLATION CHECKLIST PAGE 2 Condensate Pump Drain Installation Power Wire and Communications Cables Description Cheek Power wiring was connected to a single phase 208 230V source C SCCt dCNCNC dC Ground wire was installed and properly terminated at the unit o O W CidCS The power supplied was clean with voltage fluctuations within specifications 10 of nameplate Z J Power wiring to the Single Zone outdoor unit w
85. scieceececss caecee cxnepees cnustne racpose rosecseanadvecesneanend ness 50 Error Codes Refrigerant Leaks sseccsssseccesessessenssnentensenentensenententenentensenententenenten 53 Installation Checklist s ssssssssusnnsnsnsnnununnnnanununnnnnnnnnnnnnnnnnanannnanaa 54 55 Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 7 LG Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual GENERAL DATA Unit Nomenclature Single Zone Wall Mount Indoor and Outdoor Units LS N 090 HSV 4 Family LS High Efficiency Wall Mount Standard Extended Pipe Mega Type N Indoor Wall Mount Unit U Outdoor Heat Pump Unit Nominal Capacity Nominal cooling capacity in Btu h 090 091 9 000 120 121 12 000 180 181 18 000 240 24 000 300 307 30 000 360 36 000 Indoor Outdoor Product HSV High Efficiency HV Standard HLV Extended Pipe HEV Mega HXV Mega 115V Generation 3 Third 4 Fourth Due to our policy of continuous product innovation some specifications may change without notification LG 8 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp GENERAL DATA Single Zone High Efficiency Unit S
86. t and or sleeves must not be compressed Protect in sulation inside hangers and supports with a second layer All pipe insulation exposed to direct sunlight and deterioration producing elements must be properly protected with a PVC aluminum vapor barrier jacket or alternatively placed in a weather resistant enclosure such as a pipe rack with a top cover The design engineer should perform calculations to determine if the factory supplied insulation jackets have sufficient thickness to meet local codes and to avoid sweating at jobsite conditions Maximum refrigerant pipe temperature is 227 F minimum refriger ant pipe temperature is 4 F Add additional insulation if necessary Figure 46 Typical Pipe Insulation Power Wire and Figure 47 Typical Insulation Figure 48 Typical Refrigerant Communications Cable Arrangement Butt Joint at Indoor Unit Casing Flare Fitting Insulation Detail daai A Liquid Pipe Gas Pipe Surface of Field Provided Power Wiring Indoor Unit Casing Pipe Insulation D Insulation i Communication Cables Note Do not insulate gas and liquid pipes together as this can result in pipe leakage and malfunction due to extreme temperature fluctuations Be sure to fully insulate the piping connections Due to our policy of continuous product innovation some specifications may change without notification LG 32 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a
87. t has a lot of ground moisture 3 In a highly humid environment 4 In an area in which condensate does not drain properly WO Ambient Air Conditions Note Avoid exposing the outdoor unit to steam combustible gases or other corrosive elements Avoid exposing the unit to discharge from boiler stacks chimneys steam relief ports other air conditioning units kitchen vents plumbing vents or substances that may degrade performance or cause damage to the unit e When installing multiple outdoor units avoid placing the units where discharge of one outdoor unit will blow into the inlet side of an adjacent unit AWARNING Avoid exposing the unit to sources of extreme temperature or gases to prevent serious bodily injury LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 11 s ulj p ng uoejje suj je12u 29 Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual GENERAL INSTALLATION GUIDELINES Oceanside Applications Oceanside Applications Use of a Windbreak to Shield from Sea Wind Note Ocean winds may cause corrosion particularly on the condenser and evaporator fins which in turn could cause product malfunction or inefficient performance e The unit should be installed in a soundproofed mechanical room
88. tacle If adequate space is not available to route the insulated pipe over the obstacle then route the pipe under the obstacle In either case it is imperative the length of the horizontal section of pipe above or below the obstacle be a minimum of three 3 times the longest vertical rise or fall at either end of the segment 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 Refrigerant pipe along with the insulation jacket form a cohesive unit that expands and contracts together During system operation thermal heat transfer occurs between the pipe and the surrounding insulation If the pipe is mounted in free air space no natural restriction to movement is present if mounting clamps are properly spaced and installed When the refrigerant pipe is mounted underground in a utility duct stacked among other pipes natural restriction to linear movement is present In extreme cases the restrictive force of surface friction between insulating jackets could become so great that natural expansion ceases and the pipe is fixed in place In this situation opposing force caused by change in refrigerant fluid vapor temperature can lead to pipe fitting stress failure The refrigerant pipe support syste
89. the prompts for commercial A C products Alpharetta Georgia 30009 IM SZ HighEfficiencylnverter_HSV4 01 15 www lghvac com
90. thickness Table 3 Flared Connection Dimensions Pipe AT Thickness Liquid in O D 116 116 1 16 Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp s ulj p ng uoejje suj je12u 9 GENERAL INSTALLATION GUIDELINES Piping Preparation Piping Materials and Handling Tightening the Flare Nuts Table 4 Tightening Torque for Flare Nuts Pipe size Inches O D Oo O O Figure 20 Tightening the Flare Nuts 1140 13 9 18 1 8 1 When connecting the flare nuts coat the flare inside and outside with polyvinyl ether PVE refrigeration oil only Tightening torque ft lbs Width of the flare A inches tC CdS Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual 2 Initially hand tighten the flare nuts using three 3 or four 4 turns 3 To finish tightening the flare nuts use both a torque wrench and a backup wrench 4 After all the piping has been connected and the caps have been tightened check for refrigerant gas leaks Note Do not use polyolyester POE or any other type of mineral oil as a thread lubricant These lubricants are not compatible with PVE oil used in this system and create oil sludge leading to equipment damage and system malfunction Loosening the Flare Nuts Always use two
91. tion Plate 180HSV4 Installation Plate O90HSV4 120HSV4 Henig Place a level on raised tab 180HSV4 iadu Place a level on raised tab 18 3132 22 13 32 17 13 32 17 13 32 2 19 32 i Left Left rear et i ioe rear piping Right ing piping Measuring Tape Hanger Unit Inch Unit Inch LG Due to our policy of continuous product innovation some specifications may change without notification LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 15 s ulj p ng uoejje suj JeE1BUaD Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual GENERAL INSTALLATION GUIDELINES Mounting of Indoor Unit Drilling Piping Hole in the Wall Figure 13 Drilling Piping Hole Follow the left or right piping clearance recommendations as shown in Figure 9 and 10 ae 4 Using a 2 5 8 65mm inch hole core drill bit drill a hole at either the right or left el Outdoor side of the wall mounting Figure 13 Core Drill a The slant of the hole should be 3 16 to 5 16 from level with the slant being upward Ea on the indoor unit side and downward on the outdoor unit side es o 2 Finish off the newly drilled hole as shown with bushing and sleeve covering Bushing Sleeve and bushing prevents damage to the tubing bundling of the piping Sleev lt 0 mM Mounting the Indoor Unit to the Installation P
92. tions may change without notification LG ELECTRICAL WIRING LG SIMS Self Diagnosis Functions SIMs App Screens Outdoor Info Outdoor Info Component Screen a Temperature Screen Displays the following TS Displays the following information information Frequency iy TO FAN1 RPM F e Suction FAN2 RPM Main info Outdoo Indoor Graph Info Discharge DC Link __ Cond Mid e Current Cond Out e Voltage Heatsink EEV Mode Air Temp e Restart Timer Comp Mode EEV Heatsink ey Indoor Info Tab Graph Info Tab This tab has three sub sections IDU Indoor Unit dada Temperature graph Operation Displays IDU informa THM Mode ee 3 E tion in graph format In REM Mode Main info ahaa info ani formation displayed is Displays the following information e Frequency Outdoor indoor nfo k nio Main info FAN for the IDU selected ences e EEV on the Main screen e Air Temp ODU Outdoor Unit Pipe in risa Kia Temperature and Fre quency graph Displays ODU information in graph format ODU Electric Out door Unit Electric data graph is displayed Pipe mid e Pipe out Pipe mid a Due to our policy of continuous product innovation some specifications may change without notification L j LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 49 Bulli Je11 99 9 Si
93. ubleshoot individual error codes see the Single Zone Service Manual The software is available in a high version with all of the features listed above The low version has all features as the high version without Target High Pressure and Target Low Pressure values shown on main screen In lieu of connecting to the Water Source Unit WSU user has the option to connect to IDU with the use of a USB to RS 485 connector kit When connected through IDU user will not be able to record data This software can be used to both commission new systems and troubleshoot existing systems LGMV data can be recorded to a CSV file and emailed to an LG representative to assist with diagnostic evaluations Recommended Minimum PC Configuration e CPU Pentium IV 1 6 GHz Hard Disk 600 MB when operating Main Memory 1G MS Office 2003 2007 recommended for select reporting Operating System Windows XP Vista 7 32 bit recommended functions 64 bit Note Images on these pages are examples of LGMV screenshots Actual images may differ depending on the version of the software and the units installed Due to our policy of continuous product innovation some specifications may change without notification LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 47 Bulli 1 911 9913 Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual
94. user to turn on IDUs in 1 8 F increments 4 Useful Tab e Unit Conversion Converts metric values to imperial values Images on these pages are examples of LGMV screenshots Actual images may differ depending on the version of the software and the unit installed Due to our policy of continuous product innovation some specifications may change without notification LG 46 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp ELECTRICAL WIRING Self Diagnosis Functions LG Monitoring View LGMV Diagnostic Software and Cable Continued Figure 68 MV Control Indoor Units Screen 5 Data Figure 68 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 i 6 Monitoring Electrical The lower half of main screen is changed to show Inverter Compressor Amps Volts Power Hz Inverter control board fan Hz eaoesenesnsnsnn sd o o o Q oO a Error Codes LGMV software helps the service technician or commissioning agent to troubleshoot system operation issues by displaying malfunction codes Figure 69 These error codes can be seen on the main screen of the LGMV software program For an overview of Single Zone unit error codes see Error Codes section For detailed infor mation on how to tro
95. utdoor unit suction line thermistor is disconnected or shorted out 2 Outdoor unit coil outlet liquid line thermistor is disconnected or shorted out 4 5 Outdoor unit printed circuit board PCB EPROM check sum error 6 6 6 5 6 67 Outdoor brushless direct current BLDC fan motor lock error istor is di 4 j is di 4 4 i j i il is di 4 ion li istor is di 4 N amp Refer to Service Manuals posted on www ighvac com for a full description of all error codes and workarounds Due to our policy of continuous product innovation some specifications may change without notification LG LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp 51 Buljooysajqnoly Single Zone High Efficiency Standard Extended Pipe and Mega Wall Mount Installation Manual 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 The indoor unit error codes however 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 Table 22 Single Zone Wall Mounted Outdoor Unit Error Codes No of Times Outdoor Unit Error LEDs Blink Code Poseren LED1 LED2 Plasma LED Power LED 2 DC P
96. valve and then immedi e Pump down procedure is complete at this time and all refrigerant should be collected into the outdoor unit AWARNING Never inhale or handle refrigerant directly Doing so may cause bodily harm and injury Enabling Cooling Only Mode Before running the Pump Down procedure you must place the unit into Cooling Only Mode In order to be able to run Cooling Only Mode you must enter the unit into the Installer Mode by pressing the Reset button and the JET MODE button simultaneously 1 Shut down power to system completely 2 Enter the Installer Mode as stated in the paragraph above 3 Set code to 45 4 Press Power ON button and select the code number 45 e Unit should beep to acknowledge that code has been received 5 Turn off power e Let unit cycle off for a minimum of 30 seconds 6 Turn power back on to system Note Note Perform Pump Down procedure only in the cooling mode Disabling Cooling Only Mode After Pump Down procedure has been performed you will need to disable Cooling Only Mode and place the unit back into normal operating mode Follow the procedure below 1 Shut down power to system completely 2 Enter the Installer Mode 3 Set code to 46 4 Press Power ON button and select the code number 46 e Unit should beep to acknowledge that code has been received 5 Turn off power e Let unit cycle off for a minimum of 30 seconds 6 Turn power back on to system Once
97. vement of the pipe within the sleeve Figure 27 Underground refrigerant pipe shall be routed inside a protective sleeve to prevent insulation deterioration Refer to Figure 26 Figure 27 Pipe Sleeve Options Outside wall Q N 4 J gt Inside wall concealed Outside wall exposed Area between fire resistant insulation and boundary wall A Sleeve B insulation Lagging D Cauk Band F Water resistant layer Sleeve with edge Lagging D Mortar or other fire resistant caulk QD Fire resistant insulation Note When filling an access hole with mortar cover the area with steel plate so that the insulation will not fall through For this area use fire resistant materials for both the insulation and cover Vinyl cover should not be used Diameter of penetrations shall be determined by pipe diameter plus the thickness of the insulation Due to our policy of continuous product innovation some specifications may change without notification 24 LG Electronics U S A Inc Englewood Cliffs NJ All rights reserved LG is a registered trademark of LG Corp LG GENERAL INSTALLATION GUIDELINES Underground Refrigerant Piping Refrigerant pipe installed underground should be routed inside a vapor tight protective sleeve to prevent insulation deterioration and water infiltration Refrigerant pipe installed inside underground casing must be continuous without any joints Underground
98. wind y Building Sea wind GENERAL INSTALLATION GUIDELINES Mounting Bolt Location General Mounting Figure 3 Outdoor Unit Mounting Methods Securely attach the outdoor unit to a condenser pad base rails or another mounting platform that is securely anchored to the ground or building structure Attach the outdoor unit with a bolt and nut on a con crete or rigid mount See Figure 3 Follow applicable local codes for clearance mounting anchor and vibration attenuation requirements Note All referenced materials are to be field supplied Images are not to scale Mounting Platform The underlying structure or foundation must be designed to support the weight of the unit Avoid placing the unit in a low lying area where water may accumulate When installing the outdoor unit on the wall or roof top anchor the mounting base securely to account for wind earthquake or vibration Tie Downs and Wind Restraints z The strength of the Duct free Split Single Zone Inverter system amp Anti Vibration frame is adequate to be used with field provided wind restraint tie rad downs The overall tie down configuration must be approved by a local professional engineer Note Always refer to local code when designing a wind restraint system Piping Connection Snow and Ice Conditions In climates that experience snow build up place the unit on a raised platform to ensure condenser airflow The raised support platform must be hig
99. y tubes small orifices electronic expansion valves oil separators and heat exchangers that can easily become blocked Proper system operation depends on the installer using best practices and utmost care while assembling the piping system While brazing use a dry nitrogen purge operating at a minimum pressure of three 3 psig and maintain a steady flow Blow clean all pipe sections with dry nitrogen prior to assembly e Use a tubing cutter do not use a saw to cut pipe De burr and clean all cuts before assembly Store pipe stock in a dry place Keep pipe capped and clean e Use adapters to assemble different sizes of pipe Do not use flux soft solder or anti oxidant agents e Use a 15 silver phosphorous copper brazing alloy to avoid overheating and produce good flow e Protect isolation valves electronic expansion valves and other heat sensitive control components from excessive heat with a wet rag or a heat barrier spray product Refrigerant Piping System Insulation Note All refrigerant piping field provided isolation ball valves service valves and elbows shall be completely insulated using closed cell pipe insulation The liquid and vapor lines must be insulated separately To prevent heat loss heat gain through the refrigerant piping all refrigerant piping including liquid lines and vapor lines shall be insulated separately Insulation shall be a minimum 1 2 thick and thickness may need to be increased based on amb

Single Zone HigH efficiency Standard Wall Mounted inStallation

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