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Manual LG Electronics LGxxxA1C-B3

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  • LG Electronics LGxxxA1C-B3 - page 1

    LGxxxA1C-B3 / LGENBOX-01 AC Module System Installation Instructions * A minimum slope of 5 in/ft. for roof installations is requir ed to meet fir e cl ass ratings. The arra y frame must be gr ounded in acc ordanc e with NEC Article 250. The Dif fer enc e Is in the Detail With L G, it’ s all possible ...

  • LG Electronics LGxxxA1C-B3 - page 2

    2 T able of Contents 1 Safety 3 1-1 Safety Symbols 3 1-2 Important Safety Instructions 3 1-3 FCC Guidelines 4 1-3 Circuit Symbols 4 2 Introduction 5 3 AC Module 6 3-1 Before Installation 6 3-2 Inspecting the Area of Installation 6 3-3 Inspecting Components of the AC Module 7 3-4 Measuring AC V oltage of the Utility 7 3-5 Wiring Diagram of AC Module ...

  • LG Electronics LGxxxA1C-B3 - page 3

    3 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. Safety symbols are used to minimize loss and injury during handling and operation of the equipment specified in this manual. 1-1 Safety Symbols 1-2 Important Safety Ins ...

  • LG Electronics LGxxxA1C-B3 - page 4

    4 The following circuit symbols are used to describe the AC module circuit in this manual. 1-4 Circuit Symbols / PV module: Equipment that receives solar energy and generates DC power . / Inverter: Equipment that converts DC power into AC power . / Utility-Interactive inverter: Inverter connected in parallel with the grid to supply power . / Micro ...

  • LG Electronics LGxxxA1C-B3 - page 5

    5 2 Introduction LG AC module consists of PV(Photovoltaic) module and “Utility-Interactive” micro inverter . Without any additional equipment, it converts the solar energy to AC power used in electric appliances and supplies to the utility . • The AC module system, unlike a central inverter system, operates with module MPPT . The AC module do ...

  • LG Electronics LGxxxA1C-B3 - page 6

    6 3 AC Module • LG AC module is “Utility-Interactive”, which requires approval from the corresponding authority prior to system connection. Contact the applicable local government agencies and/or utility company . • Installation, maintenance, and supervision may only be carried out by an approved installer for the safety of workers and syst ...

  • LG Electronics LGxxxA1C-B3 - page 7

    7 3-4 Measuring AC V oltage of the Utility Measure the AC voltage of the utility at the distribution panel using a multi-meter . Refer to the table below to determine the number of modules per array . AC V oltage Single phase 240V (per 1-array) Three phase 208V (per 3-array) * For details, refer to Chapter 3-10. Connecting AC Module Array to the Di ...

  • LG Electronics LGxxxA1C-B3 - page 8

    8 3-5 Wiring Diagram of AC Module System Below is a sample diagram of the AC module system. Install in the following order . For details, please r efer to each chapter . Chapter 3-6. Installing the AC Junction Box and PV Rack Install the AC junction box and PV rack at the installation site. Chapter 3-7. Mounting the AC module Mount AC modules on PV ...

  • LG Electronics LGxxxA1C-B3 - page 9

    9 3-6 Installing the AC Junction Box and PV Rack 3-7 Mounting the AC module Before installing the AC junction box and PV rack, be aware of the following requirements: Before mounting AC module in the PV rack, be aware of the following requirements: PV Module Specification (conditions of 1000W/m 2 irradiance and 77ºF (25°C) solar cell temperature) ...

  • LG Electronics LGxxxA1C-B3 - page 10

    10 Fix AC module to the PV rack in the following order: Step1. Peel adhesive label attached on the side of PV frame of AC modules and stick on a piece of paper mirroring the array to map for monitoring. Step 2. Place AC modules on the PV rack with a minimum gap of 0.236 inch (6mm) between each module. T o prevent the risk of slipping during install ...

  • LG Electronics LGxxxA1C-B3 - page 11

    11 Use four mounting holes on two opposite sides. Minimum distance between module edge to PV rack is 10.236 inch (260mm). Use four clamps on the long frame. 1 2 1 2 1 2 1 2 Use four clamps on the short frame and two clamps at the center of long frame. Clamping Range: F rom module Edge to 10.630 inch (270mm) Center ± 3.937 inch (100mm) Center ± 3. ...

  • LG Electronics LGxxxA1C-B3 - page 12

    12 3-8 Connecting AC Modules (T runk Cable) Before connecting AC modules in each array , be aware of the following precautions: - Insert trunk female connector into trunk male connector in horizontal direction. If you insert at wrong angle, the connector can be damaged. - Insert fully into the end of the connector until you hear a click. - Do not l ...

  • LG Electronics LGxxxA1C-B3 - page 13

    13 T o prevent dust from collecting, connect each AC module one by one in the following order: Step 1. T ake the female connector out from the cable holder on the PV frame. (Do not take the unused connector out of the last AC module to prevent sagging.) Step 2. Remove the dust cover of the trunk female connector of the module you want to install an ...

  • LG Electronics LGxxxA1C-B3 - page 14

    14 Step 4. T o connect AC modules in different rows, use the extension cable. (Refer to the next page under Cable Usages According to AC Junction Box Locations ) Step 5. Remove the dust cover of the female connector of the last AC module and seal with end cap to ensure waterproofing and dust prevention. Insert the end cap into the trunk male connec ...

  • LG Electronics LGxxxA1C-B3 - page 15

    15 Cable Usages Ac cor ding to AC Junction Box Locations If first AC module connected to AC junction box is on the top left side * First AC module * Last AC module Male transition cable Male + Male extension cable Female + F emale extension cable Female + Male extension cable Female end cap [Female end c ap] [Male + Male extension cable] [Female + ...

  • LG Electronics LGxxxA1C-B3 - page 16

    16 3-9 Grounding Check your information below before grounding. • 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. • The equipm ...

  • LG Electronics LGxxxA1C-B3 - page 17

    17 Samples for Gr ounding There is two of samples for grounding below . Using a grounding wir e Using listed EGC • Determine the size of an external ground wire according to Article 690.46, NEC2014. (Equipment grounding conductors smaller than 6 A WG shall be protected from physical damage.) • A grounding conductor with insulation or bare (no i ...

  • LG Electronics LGxxxA1C-B3 - page 18

    18 Before connecting general AC cable from the AC junction box to distribution panel, adhere to the following items: 3-10 Connecting AC Module Array to Distribution Panel (General AC Cable, T ransition Cable) – 240V AC, 208V AC • T o prevent the danger of electric shock, check again if the circuit breaker is surely turned off. • LG does not p ...

  • LG Electronics LGxxxA1C-B3 - page 19

    19 Step 1. Connect the equipment grounding conductor from the AC junction box to the terminal for grounding in the distribution panel. Step 2. 1 Connect hot conductors and neutral conductor in a general AC cable from the AC junction box to the designated terminal in the distribution panel. 2 Then, connect conductors in transition cables to the AC j ...

  • LG Electronics LGxxxA1C-B3 - page 20

    20 Step 1. Connect the equipment grounding conductor from the AC junction box to the terminal for grounding in the distribution panel. Step 2. 1 Connect hot conductors and neutral conductor in a general AC cable from the AC junction box to the designated terminal in the distribution panel. 2 Then, connect conductors in transition cables to the AC j ...

  • LG Electronics LGxxxA1C-B3 - page 21

    21 Step 1. Connect the equipment grounding conductor from arrays of the AC modules system to the terminal for grounding in the distribution panel. Step 2. 1 Connect the hot conductors and neutral conductor in a general AC cable from the AC junction box to the designated terminal in the distribution panel. 2 Then, connect conductors in transition ca ...

  • LG Electronics LGxxxA1C-B3 - page 22

    22 3-1 1 Operation 3-12 Maintenance • W ater , ethanol or a conventional glass cleanser with a micro-fiber cloth can be used for regular washing or rinsing of the front glass to remove dust, dirt or other deposits. • No aggressive and abrasive cleansers or chemicals such as alkali chemicals including ammonia based solution should ever be used o ...

  • LG Electronics LGxxxA1C-B3 - page 23

    23 After installation of AC modules is completed, next step is to install the communication gateway for monitoring. Before installing the gateway , adhere to the following notices: • For reliable communication, it is recommended that the gateway is installed near the distribution panel. • T o avoid damage and failure of the gateway , do not use ...

  • LG Electronics LGxxxA1C-B3 - page 24

    24 1 Connect the AC adapter from Power (12V/1A) Port of the gateway to a dedicated 120V AC outlet. 2 Connect the PLC cable from PLC IN Port of the gateway to a dedicated a 120V AC outlet. 3 Connect the LAN cable from LAN Port of the gateway to a spare port on the broadband router . 1 Connect the AC adapter from Power (12V/1A) Port of the gateway to ...

  • LG Electronics LGxxxA1C-B3 - page 25

    25 • For reliable communication, it is not recommended to access through satellite Internet or 3G mobile Internet. 4-3 Configuring the Installation App Press the title bar for 3-5 seconds to enter installer mode. Step 1. Running the Installation App Connect mobile device (phone or tablet) to the gateway via wireless connection and run the install ...

  • LG Electronics LGxxxA1C-B3 - page 26

    26 1 After connecting the AC module system at the grid, press MAC Address List . Within 15 minutes, check that all installed AC modules are displayed. After 15 minutes, the AC modules may enter sleep mode. 2 If all are displayed, press the Registration button. Otherwise, press Back button. After waiting 2~3 minutes, check that all modules are synce ...

  • LG Electronics LGxxxA1C-B3 - page 27

    27 Note 2. Changing the EnerBox: If the EnerBox is not working correctly , follow steps below to troubleshoot. 1 After connecting a new EnerBox, enter the serial number of the failed EnerBox on the blank and press EnerBox Group change button. 2 Compare MAC addresses listed in app and web server . 3 If matching, press Registration button to finish. ...

  • LG Electronics LGxxxA1C-B3 - page 28

    28 1 2 3 Factory setting Step 5. Setting the grid configuration 1 Enter into Grid Configuration and set the grid configuration to suit your environment. If the grid configuration is wrong, AC modules may not operate correctly . 2 Press the Set button. It takes about 5 seconds per module for setting. 3 Press the Update button and check that the sele ...

  • LG Electronics LGxxxA1C-B3 - page 29

    29 4-4 Website For more information on monitoring, please refer to AC module web server manual at http://enervu.lg-solar .com/support/downloads. T o preventing set up error , it is recommended to set in the following order . Default Mode Hawaii Mode 1) Frequency 59.3 ~ 60.5 Hz 57.0 ~ 60.5 Hz 1) In Hawaii mode, T ransient Over-V oltage (TOV) mitigat ...

  • LG Electronics LGxxxA1C-B3 - page 30

    30 5 Accessories Item Diagram T ransition Cable Male L TC10-M3 (1.0m) L TC10-F3 (1.0m) LEC16-MM3 LEC16-FF3 LECAP-M3 LEC32-FM3 LECAP-F3 LAC-UNLOCK L TC15-M3 (1.5m) L TC15-F3 (1.5m) Male Male + Male Female + Female Female + Male Female Female - Used to connect the first module in the array to the AC junction box. - Used to connect to remote modules. ...

  • LG Electronics LGxxxA1C-B3 - page 31

    31 6 Product Specifications 6-1 AC Module DC Input Parameter Section V alue Power Max. 295 W 300 W 305 W T olerance 3 % 3 % 3 % V oltage Open Circuit 39.7 V 39.8 V 40.0 V Max Power Point 31.8 V 32.0 V 32.1 V Current Short Circuit 9.85 A 9.98 A 10.10 A Max Power Point 9.28 A 9.40 A 9.52 A Efciency Relative Reduction < 2.0 % Note : Relative ef? ...

  • LG Electronics LGxxxA1C-B3 - page 32

    32 Mechanical Data Micro Inverter Model (Utility Interactive) LM305UE-G1 Enclosure Environmental Rating T ype 6 Operating Ambient T emperature -40 ~ 65 °C (-40 ~ 149 ℉) Operating T emperature(Internal) -40 ~ 90 °C (-40 ~ 194 ℉) Storage T emperature -40 ~ 90 °C (-40 ~ 194 ℉) Weight 18.0 kg Certication UL1703, IEC61215 Ed.2, IEC 61730 Saf ...

  • LG Electronics LGxxxA1C-B3 - page 33

    33 Internal Communication with AC module T ype Broadband Power Line Communication (IEEE 1901) Sample Rate 15 minutes Bandwidth 2 MHz ~ 28 MHz T ransmission Rate 10Mbps Max Node 50 External Communication Wired Communication 10/100 auto-sensing, auto-negotiating, 802.3 Wireless Communication (Only for Installation) IEEE 802.1 1 b/g/n compatible W-LAN ...

  • LG Electronics LGxxxA1C-B3 - page 34

    34 6-4 Dedicated Cables T runk Cable T ype TC-ER sunlight resistant Max. V oltage 600V Max. Current 20A Size 12A WG Connector Max. V oltage 300V Max. Current 20A Drop Cable T ype TC-ER sunlight resistant Max. V oltage 600V Max. Current 5A Size 18A WG Connector Max. V oltage 300V Max. Current 5A Certication UL9703, UL6703A Dimensions 400 mm (95.7 ...

  • LG Electronics LGxxxA1C-B3 - page 35

    35 7 W arranty 8 T ransporting and Storage • Do not loosen the banding, when module is transported by truck, ship and etc. Loose banding may cause damage, like breakage of glass. • Maximum stacking is two pallets. Excessive stacking can stress the AC modules and cause product damage. • Keep the module in its original packing prior to installa ...

  • LG Electronics LGxxxA1C-B3 - page 36

    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. Document : II-AC-UL-V1-EN-201406 ...

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