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LG A1C-V5 Series Installation Manual

Ac module system
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AC Module System
Installation Manual
LGXXXA1C-V5
Important!
Please read AC Module System Installation Manual before installing, wiring, or using this
product in any way. Failure to comply with these instructions will invalidate Warranty.
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  • Page 1 AC Module System Installation Manual LGXXXA1C-V5 Important! Please read AC Module System Installation Manual before installing, wiring, or using this product in any way. Failure to comply with these instructions will invalidate Warranty.

  • Page 2: Table Of Contents

    AC Module System Installation Manual Contents Safety 1-1 Safety Symbol 1-2 Circuit Symbol 1-3 Important Safety Instructions 1-4 FCC Guideline Introduction Installation 3-1 Instruction before Installation 3-2 Checking the Install Site 3-3 Inspecting Components of an AC Module 3-4 Inspecting Components of an EnerBox2 3-5 Wiring Diagram of AC Module System 3-6 Installing the AC Junction Box and PV Rack 3-7 Mounting the AC module...
  • Page 3 AC Module System Installation Manual Contents Communication 4-1 EnerBox2 components 4-2 Simple Diagram for Communication System Configuration 4-3 EnerBox2 installation procedure 4-4 EnerVu2 Monitoring system ( Installer account ) 4-5 EnerVu2 Monitoring system ( Homeowner account ) 4-6 EnerVu2 Mobile Monitoring Application ( Installer account ) 4-7 EnerVu2 Mobile Monitoring Application ( Homeowner account )
  • Page 4 AC Module System Installation Manual Contents Maintenance Accessories Product Specifications 9-1 AC Module, LGXXXA1C-V5 9-2 AC Cables 9-3 EnerBox2 Disclaimer of Liability / Disposal Transportation and Storage Contact Appendix 1 – AC module Installation Map Appendix 2 – Module Installation & Load Guide Appendix 3 –...

  • Page 5: Safety

    AC Module System Installation Manual 1 Safety Note and comply with the safety guidelines of this manual while handling AC modules. Failure to comply may result in severe damage to the equipment and/or fatal injuries. 1-1 Safety Symbol Safety symbols are used to prevent property losses and human life damages during the operation of this equipment.

  • Page 6: Important Safety Instructions

    • Micro inverter warranty is void if cover removed. No serviceable parts inside. Refer to qualified personnel for service. • For proper operation, make sure to use AC cables, connectors and accessories provided by LG Electronics. Parts that are not listed may cause critical danger.
  • Page 7 AC Module System Installation Manual • Use proper equipment, connectors, wires and buttresses for the installation of the module. • To reduce the risk of accidents, install the AC modules during mild weather. For raining or snowy days, electric shock hazard exists. For windy days, there is a difficulty to move the AC modules. •...

  • Page 8: Fcc Guideline

    AC Module System Installation Manual 1-4 FCC Guideline For Micro inverter & Communication Gateway (EnerBox2) You are cautioned that changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment. This equipment has been tested and found to comply with the limits for a Class B Digital Device, pursuant to Part 15 of the FCC Rules.

  • Page 9: Introduction

    AC Module System Installation Manual 2 Introduction LG AC module consists of a DC module and a micro inverter. Without any additional equipment, it converts the solar energy to AC power which can be consumed by electric appliances in a home or can be supplied to the utility.

  • Page 10: Installation

    • Consult with LG Electronics for the approval of installation methods which are not specified in the installation manual, but are going to be applied. Failure to comply will void the warranty and the module certificate.

  • Page 11: Checking The Install Site

    AC Module System Installation Manual 3-2 Checking the Installation Site • Check whether the target site of installation meets the following requirements. • Do not install AC modules near highly combustible structures or materials. • Do not install AC modules where the maximum ambient temperature exceeds 65°C (149℉). •...

  • Page 12: Inspecting Components Of An Ac Module

    AC Module System Installation Manual 3-3 Inspecting Components of an AC Module After receiving products, inspect all parts for possible deformity or malfunction. ⑦ ⑧ AC Module 1. DC module converts the solar energy to DC power. ③ 2. Micro Inverter converts DC power generated by each PV ②...

  • Page 13: Inspecting Components Of An Enerbox2

    ① wireless connection of an EnerBox2 to a router(It needs to be already installed at home owner’s site). A router is not provided by LG Electronics. 3. EnerBox2 left-side provides many functions including reset, buttons, LEDs, and etc. 4. EnerBox2 bottom-side...

  • Page 14: Wiring Diagram Of Ac Module System

    AC Module System Installation Manual 3-5 Wiring Diagram of AC Module System Below is a sample diagram of the AC module system. Transition Cable (transformed from an extension cable) AC Cable AC Module AC Junction Box PV Rack General AC Wiring Equipment Grounding Conductor...

  • Page 15: Installing The Ac Junction Box And Pv Rack

    Maximum operation temperature: 65°C (149°F). Minimum operation temperature: -40°C (-40°F). Design strength Refer to Appendix 2 – Module Installation & Load Guide Notes - LG AC module should not be operated in locations where direct contact to salt water or ammonia exists. Rev. 1.0...

  • Page 16: Mounting The Ac Module

    To avoid the tensile strain from the thermal expansion, it is recommended to leave a space more than 6mm (0.236 inches) between AC modules frames. • Mount LG AC module to PV rack with 4~5N•m torque. • For reliable connection, make sure that the AC module frame and a PV rack are surely fastened enough to prevent the AC modules from getting loose.
  • Page 17 The AC module can be mounted by using clamps or fixing plates. Steps and procedures need to be carried out based on a manual provided by the clamp or fixing plate manufactures. The type is evaluated by LG internal test, not tested by UL.
  • Page 18 AC modules one by one. • Peel the adhesive label attached on the side of AC module frame and attach the identification label on LG AC module Installation map. The map makes it easy for customers to identify the physical location of a particular AC module.
  • Page 19 AC Module System Installation Manual Portrait Orientation Landscape Orientation 4.72 inch 4.72 inch 120 mm 120 mm 4.72 inch 4.72 inch 120 mm 120 mm • After checking whether paring male and female connectors between modules (except end cap and junction box connection) are surely finished, proceed to install next row of modules. •...
  • Page 20 AC Module System Installation Manual • If the installation is likely to be affected by heavy(extreme) snow, further suitable panel support is recommended on the lower row of panels. LED indicator Flashing red light => No red light • Solar panel is getting solar energy but it is not providing power to utility grid. (Left figure) •...

  • Page 21: Coupling Ac Cable Connectors

    AC Module System Installation Manual 3-8 Coupling AC cable Connectors Before pairing AC cable connectors, familiarize yourself with the following descriptions specifically explaining how to handle AC cable connectors and accessories. AC cable connector insertion • AC cable connectors have ‘Fool-proof system’ to pair connectors in a right direction. •...
  • Page 22 AC Module System Installation Manual • Do not bend the cable too many times. It may result in mechanical and/or electrical problems. • Do not disconnect AC cable connectors under load. • Use the dedicated unlocking tool to remove the connector. Do not use any other tools. •...

  • Page 23: Building An Array Of Ac Modules

    Because male connector is designed to be connected with a female connector or female end cap, there is a need to keep track of the positions of male and female connectors when you build an array. • The AC module produced by LG Electronics is delivered after completing the electrical connection between DC module and a micro inverter. •...
  • Page 24 -AC cable connector and end cap include waterproof functions. • Make sure to use AC cables, extension cables and end caps provided by LG. If other cables other than genuine are used, waterproofing may not be guaranteed and the permissible current of the cable may be lower than the output current of the micro inverter.

  • Page 25: Building Blocks Of An Array

    AC Module System Installation Manual 3-10 Building blocks of an array Male connector 6 building blocks Female connector • There are 6 building blocks of AC modules which can be used in building an array. Using the 6 building blocks helps installers sketch array configuration and plan the AC cable connection. The designer needs to keep in mind that the location of female and male connector will affect array design.
  • Page 26 AC Module System Installation Manual Fastening AC cables on PV racks or AC module frame • Use cable clip or cable tie in order to fasten the AC cables on AC module frames or PV racks. • Keep the AC cables off from roof surface or ground. •...
  • Page 27 AC Module System Installation Manual Possible combination of AC modules for array design Male connector If AC junction box is on the right side of a 3-by-4 PV array in portrait orientation, Female connector Use a proper transition cable for connecting the array with the AC junction box. (Refer to 3-12 Connecting Array of AC Modules-to-Distribution Panel guiding installers to make a transition cable from an extension cable) Seal the AC cable male or female connector of the last AC module using an appropriate end cap.
  • Page 28 AC Module System Installation Manual Possible combination of AC modules for array design Male connector If AC junction box is on the right side of a 3-by-4 PV array in landscape orientation, Female connector Use a proper transition cable for connecting the array with the AC junction box. (Refer to 3-12 Connecting Array of AC Modules-to-Distribution Panel guiding installers to make a transition cable from an extension cable) Seal the AC cable male or female connector of the last AC module using an appropriate end cap.
  • Page 29 AC Module System Installation Manual Possible combination of AC modules for array design Male connector Female connector If AC junction box is on the right side of a 2-by-6 PV array in portrait orientation, Use a proper transition cable for connecting the array with the AC junction box. (Refer to 3-12 Connecting Array of AC Modules-to-Distribution Panel guiding installers to make a transition cable from an extension cable) Seal the AC cable male or female connector of the last AC module using an appropriate end cap.
  • Page 30 AC Module System Installation Manual Possible combination of AC modules for array design Male connector If AC junction box is on the right side of a 2-by-6 PV array in portrait orientation, Female connector Use a proper transition cable for connecting the array with the AC junction box. (Refer to 3-12 Connecting Array of AC Modules-to-Distribution Panel guiding installers to make a transition cable from an extension cable) Seal the AC cable male or female connector of the last AC module using an appropriate end cap.
  • Page 31 AC Module System Installation Manual Possible combination of AC modules for array design Male connector If AC junction box is on the right side of a 2-by-6 PV array in landscape orientation, Female connector Use a proper transition cable for connecting the array with the AC junction box. (Refer to 3-12 Connecting Array of AC Modules-to-Distribution Panel guiding installers to make a transition cable from an extension cable) Seal the AC cable male or female connector of the last AC module using an appropriate end cap.
  • Page 32 AC Module System Installation Manual Possible combination of AC modules for array design Male connector If AC junction box is on the right side of a 2-by-6 PV array in portrait orientation, Female connector An example is described below for a case where a modification of the array design is inevitable because of a roof vent or other obstacles.
  • Page 33 AC Module System Installation Manual Possible combination of AC modules for array design Male connector If AC junction box is on the right side of a 2-by-6 PV array in portrait orientation, Female connector An example is described below for a case where a modification of the array design is inevitable because of a roof vent or other obstacles.

  • Page 34: Grounding

    AC Module System Installation Manual 3-11 Grounding Check your information below before grounding. Notice • Grounding is largely classified into equipment grounding and neutral grounding. The purpose of the equipment grounding is to prevent electric shock from contact with metal parts. Equipment grounding allows the abnormal current to flow from the equipment to the earth.
  • Page 35 AC Module • LG AC module includes DC cables in the module’s internal wiring, so no grounding is required for DC input. • LG AC Modules need to be grounded by using an external grounding equipment conductor. LG does not provide a grounding conductor.
  • Page 36 Those methods and devices are not tested by UL. • • These alternative grounding devices indicated on the appendix has been evaluated and approved by LG, not by UL. • Please follow installation manual for the grounding devices provided by its manufacturer.

  • Page 37: Connecting Array Of Ac Modules To Distribution Panel

    To prevent the danger of electric shock, check again if the circuit breaker is surely turned off. • LG does not provide separate general AC wiring coming from the distribution panel to an AC junction box. • Undertake the Installation works using certified parts and tools.
  • Page 38 AC Module System Installation Manual Adjust an extension cable for junction box configuration Cut here Extension cable L1 (Black) L2 (Red) Neutral (White) Transition cable ※ Use a proper transition cable for the first AC module connector. Cut here Extension cable L1 (Black) L2 (Red) Neutral (White)
  • Page 39 AC Module System Installation Manual Sealing the last AC module connector The AC cable connector of the last AC module should be sealed for weather proof function. End caps are initially paired with connectors. Installers can use suitable end cap for different type of connector at the last AC module. ※...
  • Page 40 AC Module System Installation Manual Connect the general AC cables in the following order: AC output single phase 240VAC There is a sample for AC output cables connection of single phase 240VAC below. The micro inverter is compatible with 240VAC/120VAC and 208VAC/120VAC. No additional setting is required. Meter 2-pole X 12...
  • Page 41 AC Module System Installation Manual Connect the general AC cables in the following order: AC output single phase 208VAC There is a sample for AC output cables connection of single phase 208VAC below. The micro inverter is compatible with 240VAC/120VAC and 208VAC/120VAC. No additional setting is required. Meter 2-pole X 10...
  • Page 42 AC Module System Installation Manual AC output three phase 208VAC –merge type To form balanced three phases, it is recommended to use 3-array and equal to the number of AC modules in each array . Here is a sample for AC output cables connected to three phase 208VAC below. Meter 3-pole General wiring...
  • Page 43 AC Module System Installation Manual AC output three phase 208VAC –split type To form balanced three phases, it is recommended to use 3-array and equal to the number of AC modules in each array . There is one of samples for AC output cables connection of three phase 208VAC below. Meter 2-pole X 10...

  • Page 44: Grid Voltage Measurement

    AC Module System Installation Manual 3-13 Grid Voltage Measurement Measure AC voltage of the utility at the distribution panel and AC junction box using a volt- meter. Fill out the below table. If the measured voltage is out of the range which is specified in each table, then ask to local electricity provider regarding voltage instability.

  • Page 45: Grid Frequency Measurement

    AC Module System Installation Manual 3-14 Grid Frequency Measurement Measure grid frequency of the utility at the distribution panel and AC junction box using a volt- meter. Fill out the below table. If the measured voltage is out of the range which is specified in each table, then ask to local electricity provider for voltage instability.

  • Page 46: Energizing The Installed Ac Module System

    AC Module System Installation Manual 3-15 Energize the installed AC module system Meter 2-pole N L1 L2 AC junction box Distribution panel An array of AC modules A. Make sure that the branch circuit breaker is initially turned off. B. Check whether all of AC cable connectors are properly engaged. Refer to 3-8 Coupling AC cable connectors and 3-9 Building an array of AC modules.

  • Page 47: Communication

    AC Module System Installation Manual 4 Communication After completing the installation of AC modules on the rooftop or other site, next step is to install the communication gateway (EnerBox2). Before installing the gateway, adhere to the following notices: • For reliable communication, it is recommended for the gateway (EnerBox2) to be directly installed to an outlet which is electrically connected to the distribution panel where the AC modules are attached also.

  • Page 48: Enerbox2 Components

    6. Wall mount bracket 5. LAN cable 4. EnerBox2 Power-cable 4-2 Simple Diagram for Communication System Configuration Internet Router LG EnerVu for Professionals or for Owner on a smart phone EnerBox2 LG EnerVu for Professionals or for Owner on a desktop or laptop...

  • Page 49: Enerbox2 Installation Procedure

    (using EnerVu2 or LG EnerVu2 Professionals) Step 7. Design the Array in EnerVu2 (web only). Step 8. Activate a System. ※ EnerVu2 indicates a website(https://enervu.lg-solar.com), while LG EnerVu2 Professionals mean a program of mobile application. Search for the LG EnerVu2 in App Store. Rev. 1.0...
  • Page 50 Step 1. Create an installer account. If you have it, skip this step. Create an installer account using a mobile phone. Access and sign up into the EnerVu2 URL : https://enervu.lg-solar.com/. If you have signed up before, please go for Step 2 directly.
  • Page 51 AC Module System Installation Manual Step 2. Find a location for EnerBox2 In a house, find out an outlet that is electrically connected to the distribution panel where all of AC modules are attached. Distribution Panel Do not share the outlet with other home appliances like TVs, washing machines, or electronic gadgets, etc. It will create interference in communication of an EnerBox2 with AC modules.
  • Page 52 EnerBox2 SSID password : 87654321 On your mobile phone, open the LG EnerVu2 Professionals app. Tap ‘LG EnerBox’. It will guide you directly to the ‘Dashboard’. Then, put the total number of AC modules in the blank then touch the save button.
  • Page 53 AC Module System Installation Manual You can check the PLC level in dashboard. It is recommended for the PLC level to have two or three bars. If the PLC level is zero or one, Relocate the EnerBox2 to a location where few home appliances are installed. PLC level Recommendations : Inappropriate PLC level for communication ...
  • Page 54 B. Turn Wi-Fi on in your mobile phone. Search for the SSID of EnerBox_xxxxx. EnerBox_xxxxx password : 87654321 C. Then go for [LG EnerBox -> Network -> WLAN]. D. Select your home router’s SSID then put the password on the blank. Home router SSID E.
  • Page 55 AC Module System Installation Manual If it is done, briefly press the AP button on EnerBox2 to deactivate the Soft AP mode. The ‘MOBILE / S-METER’ LED is off. Briefly press the AP button The MOBILE LED is off G. Get your Wi-Fi setting back to normal. H.
  • Page 56 DHCP is not in service. If DHCP service is not available, EnerVu Web server will not be accessible because IP address cannot be assigned. C. If you need static IP settings, it is easiest to connect and configure the LG EnerVu2 Professionals application. (You can set it by selecting Ethernet instead of WLAN after entering the Network tab, referring to Method A.)
  • Page 57 AC Module System Installation Manual Step 5. Verify the system configuration After getting connected to the EnerBox2 through Soft AP mode, check the dashboard for the following. You can also connect to EnerBox2 through the site’s routers. A. Confirm that internet connection is secured. EnerBox2 is connected to internet.
  • Page 58 AC Module System Installation Manual Step 6. Create a system Creating a system and registering the EnerBox2 is possible by using EnerVu2 (web browser) or LG EnerVu2 Professionals (mobile application).  Using a laptop or a desktop Access and sign in to EnerVu2. URL : https://enervu.lg-solar.com...
  • Page 59  Using a mobile phone Turn Wi-Fi on in your mobile phone. Search for the SSID of the network connected with EnerBox2. Use your mobile phone to open the LG EnerVu2 Professionals app. Tap ‘LG EnerBox’ and select the EnerBox2 serial number.
  • Page 60 AC Module System Installation Manual Step 7. Design the Array in EnerVu2 using a laptop or a desktop ( It is not available on the mobile application ) Click ‘Go to Design’. Select the MAC. Then hold and drag it on the array Choose a background image in order to decorate the array builder.
  • Page 61 Step 8. Activate a System A. Finally, press ‘Activate’ on right-side button at Activation Checklist. After homeowner signs in to LG account with an invitation email, the system will be in completion of activation automatically. B. Then, the installer and home owner can monitor the installed system to check out energy harvest.
  • Page 62 AC Module System Installation Manual Note 1. Visual notification of power production status. During daytime, users can be easily informed about the power generation information by simply looking at the EnerBox2. Different colors are used to express brief power production level as described below. If red LED light or no LED light is shown during daytime and it persists continuously, please refer to ‘Trouble Shooting Guide’...

  • Page 63: Enervu2 Monitoring System ( Installer Account )

    Note 1. Creating an installer account using a laptop. (LG EnerVu for Professionals) Access and sign up into the EnerVu2 URL : https://enervu.lg-solar.com/. If you have signed up before, please skip this step. Creating an account by using a mobile is described in 4-3 EnerBox2 Installation procedure.
  • Page 64 AC Module System Installation Manual Note 2. Dashboard Log in with ‘LG EnerVu for Professionals’ account. LG EnerVu for Professionals URL : https://enervu.lg-solar.com/ System map depicts a world map where a user easily finds each AC module system installed and registered by the user account.
  • Page 65 AC Module System Installation Manual Note 3. Activated System List Select ‘Activated System’. A list of installed systems are on display with simple data. Click a system name that you want to monitor in detail. The list can be easily fetched by just clicking the excel icon. An excel file will be automatically generated for helping user stack data or report a list.
  • Page 66 AC Module System Installation Manual Note 4. GNB(Global Navigation Bar) and Monitoring menu Systems – Menu to view or create systems Activated system – Energy harvest data can be monitored on daily, weekly, monthly or annual basis. It is only possible after installation of AC modules and a monitoring system is finished.
  • Page 67 AC Module System Installation Manual Note 5. Array Select ‘Array’ When you select the micro inverter ID in the system tree, the position on the array is displayed and you can see the menu that can be moved to system, alerts and graph. The same pop-up menu appears when you select a module above the array design.
  • Page 68 AC Module System Installation Manual Note 6. Graph Select ‘Graph’. Click ‘Energy’ to see energy production (Wh) trend. Or select ‘Power’ to see power (W) that is generated at a specific time instance. Set an appropriate time frame. Select the system or an AC module to check energy and power production. Multiple graphs can be created in taps.
  • Page 69 AC Module System Installation Manual Note 7. Comparison of an AC module with another AC module Select ‘Graph’. Put the slider of ‘Compare Modules’ on right position. Click ‘Energy’ to see energy production (Wh) trend. Or go for ‘Power’ to see power (W) that is generated at a specific time instance.

  • Page 70: Enervu2 Monitoring System ( Homeowner Account )

    4-5 EnerVu2 Monitoring system ( Homeowner account ) Note 1. LG EnerVu for Owner Log in with ‘LG EnerVu for Owner’ account. LG EnerVu for owner URL : https://enervu.lg-solar.com Once you're signed in, you can see your dashboard. In the dashboard, you can check Energy Overview, Recent Energy Flow, weekly energy graph, and Trip to America.
  • Page 71 AC Module System Installation Manual Note 2. Monitoring and System Info Select ‘Monitoring’ menu displayed on the left. Click ‘Array’ to see the virtual array that the installer has already set. The AC module system shows total energy production on each AC module depending on how you set the time period Click ‘Graph’...

  • Page 72: Enervu2 Mobile Monitoring Application( Installer Account )

    AC Module System Installation Manual 4-6 EnerVu2 Mobile Monitoring Application( Installer account ) Note 1. LG EnerVu mobile application main page (LG EnerVu for Professionals) Connection method for EnerBox2 - Site AP : connection through the router - 3G/LTE : connection using 3G/LTE - EnerBox AP : connection using Soft AP mode Notices ( “ⓝ”...
  • Page 73 AC Module System Installation Manual Note 2. LG EnerVu mobile system monitoring Touch ‘Systems’ (Cloud Connection) The ‘Alert’ tab allows installers to discover any system having alerts. The reported alerts can be used for troubleshooting. Specific information can be found if you touch a particular system that you want to investigate.
  • Page 74 AC Module System Installation Manual Note 3. Settings and Support Touch ‘Settings’ You can check and download the latest firmware version update from your mobile. There is an option to choose a language that you want to set. Firebase Analytics provides an option for users to allow/disallow sending logs to a web-server. So, if you want to disable ‘Firebase Analytics’, turn it off.

  • Page 75: Enervu2 Mobile Monitoring Application( Homeowner Account )

    AC Module System Installation Manual 4-7 EnerVu2 Mobile Monitoring Application( Homeowner account ) Note 1. LG EnerVu mobile application main page (LG EnerVu for Owner) Sign in with a user ID and a password. If you have not signed up, click the ‘Sign up’ button to proceed with the registration first.
  • Page 76 AC Module System Installation Manual Note 2. Dashboard / Monitoring After signing in with an ID and a password. Dashboard provides brief description about solar energy generation produced by the installed AC module system. Also, a graph representing solar energy generation within a specific time is on display. Particularly, simple comparison of the produced solar energy with electricity consumption by an electric car is illustrated for showing how the installed AC module systems contribute to clean the world.
  • Page 77 AC Module System Installation Manual Note 3. System Info Touch ‘System Info’. Variable tasks are available including changing system information, getting system data, adding a new member or requesting account transfer. If connection between EnerBox2 and EnerVu is not guaranteed, get ‘Network Setting Guide’ for trouble shooting.
  • Page 78 In ‘Contact’, you can see instructions for contacting us in the event of a problem. System Inquiry - Please contact the installer for inquiries about system and error occurrence. Homepage Inquiry - For inquiries about using the website, please contact LG Electronics.. Rev. 1.0...

  • Page 79: Troubleshooting Guide

    EnerBox2. Four LEDs will be flashing in amber. When it is done, they will be flashing in green. Then, press the ‘RESET’ button for reboot. E. Please follow other steps described in this manual. If problems persists, contact LG for technical support. FACTORY...

  • Page 80: Replacing An Enerbox2

    AC Module System Installation Manual 5-2 Replacing an EnerBox2 First, physically install the new Enerbox2 using the following procedure. 1. Unplug the power cord of the old EnerBox2 2. Place the new EnerBox2 at the same location. Connect the power cord to the new EnerBox2 and a power outlet (same outlet used by the old EnerBox2).
  • Page 81 AC Module System Installation Manual  Using LG EnerVu2 Professionals You can find ‘Reboot’ button by going for [Systems -> Activated -> Choose a system name -> EnerBox]. The button is placed on the right. When you press the ‘Replace’ button, you will see three ways to enter the new EnerBox2 S/N as shown below.

  • Page 82: Check The Plc Level

    AC Module System Installation Manual 5-3 Check the PLC Level It is recommended for the PLC level to have two or three bars. It will be the best if the outlet has shortest electrical path from the distribution panel where all of AC modules are attached. If the PLC level is zero or one, relocate the EnerBox2 to a location where few home appliances are installed.

  • Page 83: Micro Inverter Detection Issues

    C LED off Red Blinking LED normal Abnormality case A,B Check that the solar panel is actually getting sunlight. If it persists continuously, contact LG Electronics to replace the product. Abnormality case C Measure voltages. Measure frequencies. Measure ambient temperature and check if it is in the range of -40 to 65 °C (-40 to 145 ℉).
  • Page 84 AC Module System Installation Manual • ‘Detected AC modules’ is larger than ‘Installed Number’. • Follow below check list.  Make sure that the number of installed AC modules is accurate in the activated system.  Go for [Detected AC Modules–Edit]. Then bring the installation map where all of MAC address is attached.

  • Page 85: Internet Connection Issues

    Issue: Internet LED is Solid Amber or Off EnerBox2 INTERNET status LED While LG Electronics provides technical support on EnerBox2, LG Electronics has no responsibility for a router which is made by other manufacturer. If connection failure between the EnerBox2 and a router occurs, check whether your laptop or mobile phone has no problem to use internet access at first.
  • Page 86 AC Module System Installation Manual Issue: How to set the static IP address. When an EnerBox2 tries to access to internet, it will automatically receive IP address from the router’s DHCP(Dynamic Host Configuration Protocol) server. However, based on circumstances, an EnerBox2 can manually set static IP address.

  • Page 87: Micro Inverter Operation Issues

    AC Module System Installation Manual 5-6 Micro inverter Operation Issues Web Monitoring system Installed AC module system C : Check LED status If the web monitoring system notify you that particular AC modules are not communicating with the EnerBox2, then write down the location of the AC module and MAC address. Find out the physical location of the target AC modules.
  • Page 88 AC Module System Installation Manual Meter N L1 L2 Distribution panel AC junction box An array of AC modules F : Check LED status Investigate the distribution panel and find out the circuit breaker that works only for the branch where all of AC modules are attached.
  • Page 89 LED off Red Blinking LED normal Abnormality case A,B Check that the solar panel is actually getting sunlight. If it persists continuously, contact LG Electronics to replace the product. Abnormality case C Measure voltages described in 5-7 Grid Voltage Measurement.

  • Page 90: Grid Voltage Measurement

    AC Module System Installation Manual 5-7 Grid Voltage Measurement Measure AC voltage of the utility at the distribution panel and AC junction box using a volt- meter. Fill out the below table. If the measured voltage is out of the range which is specified in each table, then ask the local electricity provider about voltage instability.

  • Page 91: Grid Frequency Measurement

    AC Module System Installation Manual 5-8 Grid Frequency Measurement Measure grid frequency of the utility at the distribution panel and AC junction box using a volt- meter. Fill out the below table. If the measured frequency is out of the range which is specified in each table, then ask the local electricity provider about frequency instability.

  • Page 92: Event List And Description

    AC Module System Installation Manual 6 Event List and Description 6-1 EnerBox2 Displays and Controls The LEDs on the EnerBox2 are solid green when a function is enabled or performing as expected, flashing when an operation is in progress, or solid amber when troubleshooting is required (except Soft AP operation). Button and Switch Description Remarks...
  • Page 93 AC Module System Installation Manual 6-2 EnerBox2 LED State Description Software upgrade in progress Flashing Green Factory reset in progress (factory reset button pushed) Flashing Amber After software upgrade and factory reset Green Communicating with EnerVu2 Flashing Green WPS mode enable INTERNET Amber Local network only (Connected with Home AP but not internet)

  • Page 94: Web-Monitoring System Event List

    AC Module System Installation Manual 6-2 Web-monitoring System Event List Cause Event Name Event Code Impact Event Class Description Remarks Device (App / Web) AC Frequency is the frequency at NOTICE. Angle Status which voltage varies on the utility AC Frequency - 1 : Angle Error (Noti grid.
  • Page 95 AC Module System Installation Manual Cause Event Name Event Code Impact Event Class Description Remarks Device (App / Web) ERROR. Iac Status - 1 Inverter Failure AC Module has been in failure mo MI_VDC_OVR Error Vdc Status : Vdc Over (Error #4 - Error DC Link Voltage High) AC Frequency is the frequency at...

  • Page 96: Maintenance

    AC Module System Installation Manual 7 Maintenance • Ensure that AC cable connectors are tightly connected and the wiring properly works. • Conduct periodic inspection of the AC modules for any damages on front glass, back sheet, frame, AC junction box, micro inverters, circuit breakers, conduits, Earth Grounding path, or external electrical connections.

  • Page 97: Accessories

    AC Module System Installation Manual 8 Accessories Item Model No. Diagram Details -Used to connect two AC modules. - Usable as an extension cable or a transition cable. Extension 63 in/1600mm LEE16-FM3.AU1 Cable - End caps are initially paired with connectors. - The length 1600 mm/63 in.
  • Page 98 AC Module System Installation Manual Item Diagram Details - Used for communication with AC modules. - Used for providing power to the EnerBox2. EnerBox2 Components - Used in a case of wired LAN. - Used for - Used for mounting the mounting the EnerBox2 on EnerBox2 on wall.

  • Page 99: Product Specifications

    AC Module System Installation Manual 9 Product Specifications 9-1 AC module , LGXXXA1C-V5 DC Input Parameter Section LG370A1C-V5 LG375A1C-V5 LG380A1C-V5 Max. 370W 375W 380W Power Tolerance 0% ~ 3% 42.8V 42.8V 42.9V Voltage Vmpp 37.0V 37.2V 37.4V Tolerance –5% ~ +5% 10.82A 10.83A 10.84A...
  • Page 100 AC Module System Installation Manual Module Fire Performance Type 1 Environmental Rating NEMA 6 (IP67) Mechanical Data Micro Inverter Model LM320UE-A2 (Grid Support Utility Interactive) Micro Inverter Operating ambient temperature -40 to 65 °C (-40 to 149 ℉) Storage temperature -40 to 90 °C (-40 to 194 ℉) Length 66.9 inch (1700mm)

  • Page 101: Ac Cables

    AC Module System Installation Manual 9-2 AC Cables • AC Cable Ass’y (attached on a micro inverter) and Extension Cable (Accessory) Technical Data Standard UL9703 Rated Voltage 600V AC Temperature Range -40 to 85 °C (-40 to 185 ℉) Rated Current Protection Degree IP68 Wire Size Range...

  • Page 102: Enerbox2

    AC Module System Installation Manual 9-3 EnerBox2 Internal Communication with AC module Type Broadband Power Line Communication (IEEE1901) Sample Rate 15 minutes Bandwidth 2MHz ~ 28MHz Maximum Node Internal Communication with Smart-meter Wireless Communication IEEE802.15.4 ZigBee External Communication Wired Communication IEEE802.3 10BASE-T/100BASE-TX Ethernet Wireless Communication IEEE802.11b,g,n...

  • Page 103: Disclaimer Of Liability / Disposal

    LG, its affiliated companies, successors, or assigns, its administrators, directors, agents, officers, volunteer and employees. Disposal • Please contact us, if you have any inquiries related to the disposal or recycling of solar modules from LG Electronics. 11 Transportation and Storage •...

  • Page 104: Appendix 1 - Ac Module Installation Map

    AC Module System Installation Manual Rev. 1.0...

  • Page 105: Appendix 2 - Module Installation & Load Guide

    B : 33.2±3.9 in 6point (①+②) Rear : 1800Pa(38psf) Rear : 4000Pa(84psf) (843±100mm) Note) All mechanical installation method(Fig. 1 to Fig. 6) in this appendix were not tested by UL. (UL 1703, ULC 1703) It is evaluated by LG internal test. Rev. 1.0...

  • Page 106: Appendix 3 - Alternative Equipment Grounding Devices

    Install manual and listed manufacturer’s installation guide. These alternative grounding devices indicated on this page have been evaluated and approved by LG, not by UL. If such devices are to be used to meet the requirement in UL 1703, some adequate tests shall be conducted in accordance with UL1703 additionally.
  • Page 107 Contact : lg.solar@lge.com https://www.lg.com/us/solar This document is subject to change without notice. LG, LG logo and Life's Good are trademarks of LG Electronics, Inc. worldwide. Trademarks and intellectual properties of LG Electronics, Inc. are protected by international copyright laws. Document : II-AC-UL-V1.0-EN-201908...

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