PV Solar AC MODULE. Installation manual.

Transcription

1 Installation manual PV Solar AC MODULE Please read this manual carefully before operating your set and retain it for future reference. AC MODEL LGXXXE1C-A5 LGXXXE1K-A5 MFL (Rev 00)

2 TABLE OF CONTENTS SAFETY...04 Safety Symbols...04 Important Safety Instructions...04 FCC Compliance...05 PV Rapid Shutdown Equipment...06 INTRODUCTION...07 The Advantages of LG AC Module System...07 LG AC Module System...07 BEFORE INSTALLATION...08 Before Installation...08 Inspecting the Area of Installation...08 Inspecting Components of the LG AC Module...09 Parts and Tools Required...09 Measuring AC Voltage of the Utility...10 Wiring Diagram of the LG AC Module System...10 LG AC MODULE INSTALLATION...11 Installing the Enphase Q Aggregator or AC Junction Box and PV Rack Mounting the AC Module...11 Site Consideration...12 Microinverter Installation...13 Grounding...18 Connecting the LG AC Module Array to Distribution Panel - 240VAC...19 OPERATION...19 MAINTENANCE...19 ACCESSORIES...20 Enphase Accessories...20

3 TABLE OF CONTENTS PRODUCT SPECIFICATIONS...21 DC Input...21 AC Output...21 Response to Abnormal Conditions...21 Mechanical Properties...22 DISCLAIMER OF LIABILITY / DISPOSAL Disclaimer of Liability...23 Disposal...23 TRANSPORTING AND STORAGE...23 REVISIONS TABLE...23 APPENDIX...24 Mechanical Installation...24 Alternate Equipment Grounding Devices...25 Installation Map...27 Sample Wiring Diagram...27 Troubleshooting...28 Troubleshoot an Inoperable Microinverter...30 Remove and Replace a Microinverter...31 Methods of Grounding...33

4 SAFETY Note and comply with the safety guidelines of this manual while handling the LG AC modules. Failure to comply may result in severe damage to the equipment and/or fatal injuries. Safety Symbols Safety symbols are used to minimize loss and injury during handling and operation of the equipment specified in this manual. DANGER WARNING CAUTION Failure to comply with the instructions will cause fatal injuries or immediate death. Failure to comply with the instructions could cause severe injuries or death. Failure to comply with the instructions may cause injuries or damage to property. Failure to comply with the instructions may cause severe injuries or immediate death by overvoltage. Failure to comply with the instructions may cause injuries or damage to property by fire. Important Safety Instructions DANGER To prevent the risk of electric shock, stay away from current-carrying terminals during operation, and allow several minutes after the circuit breaker has been turned off. It may be energized in the open position. To prevent the risk of overvoltage, do not disconnect the cable connector during operation. Risk of electric shock. Risk of fire. Only use electrical system components approved for wet locations. Risk of electric shock. Risk of fire. Ensure that all AC and DC wiring is correct and that none of the AC or DC wires are pinched, shorted or damaged. Ensure that all AC junction boxes and Enphase Q Aggregators are properly closed. Risk of electric shock. Do not use this equipment in a manner not specified by the manufacturer. Doing so may cause death or injury to persons, or damage to equipment. Risk of electric shock. Be aware that installation of this equipment includes risk of electric shock. Risk of electric shock. The DC conductors of this photovoltaic system are ungrounded and may be energized. Risk of electric shock. Always de-energize the AC branch circuit before servicing. While connectors are rated for disconnect under load, we do not recommend disconnecting the DC connectors under load. WARNING To prevent the risk of burns, do not touch metal parts during operation. For safety, only qualified persons should service the LG AC Module. To prevent the risk of electric shock, stay away from damaged LG AC Module(s). Do not use the LG AC Module(s) with broken glass or torn backsheets. Damaged LG AC Module(s) must be handled with proper safety equipment. Failure to comply may result in serious bodily injury or death. Inverter warranty voided if cover removed. No serviceable parts inside. Refer servicing to qualified personnel. For proper operation, make sure to Enphase cables and accessories. Parts that are not listed may cause critical danger. For proper operation, the LG AC Module shall be connected only to a dedicated branch circuit. To prevent the risk of fire, do not connect any device other than those specified(q Aggregator or AC junction box) between the LG AC Module and circuit breaker. Circuit breaker may not work properly. Before installation, make sure to check that the area of location meets the required environment specified in Page 20; Product Specification (voltage, frequency, temperature, number of LG AC Modules, overcurrent device). 04

5 When the PV array is exposed to light, DC voltage is supplied to the power conversion equipment (PCE). Risk of equipment damage. Enphase male and female connectors must only be connected with the matching male/female connector. The AC and DC connectors on the cabling are rated as a disconnect only when used with an Enphase Microinverter. Risk of skin burn. The chassis of the Microinverter is the heat sink. Under normal operating conditions, the temperature could be 20 C above ambient, but under extreme conditions the microinverter can reach a temperature of 90 C. To reduce risk of burns, use caution when working with microinverters. Risk of equipment damage. The Enphase Microinverter is not protected from damage due to moisture trapped in cabling systems. Never connected microinverters to cables that have been left disconnected and exposed to wet conditions. This voids the warranty. CAUTION Use proper equipment, connectors, wires and buttresses for the installation of the LG AC Module. Failure to comply may result in product damage, product failure and/or bodily injury. To reduce the risk of accidents, do not install during inclement weather. To prevent the risk of electric shock, do not touch the glass surface or frame of the LG AC Module after installation. To prevent the risk of injury, do not apply pressure on the LG AC Module. (ex. placing heavy objects or stepping on the LG AC Module) To prevent the risk of injury, do not drop the LG AC Module; the LG AC Module(s) must be gently handled and placed down. For proper operation, do not scratch the coating surface of the frame. It may increase the corrosion of the frame. For proper operation, do not concentrate sunlight on the LG AC Module surface. Addition of holes in the frame or glass of the LG AC Module may decrease the strength and integrity of the frame or glass. Do not remove warning labels. Store the LG AC Module in its original package until installation. FCC Compliance 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. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, you are encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and the receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/tv technician for help. Changes or modifications not expressly approved by the party responsible for compliance may void the user s authority to operate the equipment. Notes The Enphase Microinverter has field-adjustable voltage and frequency trip points that may need to be set, depending upon local requirements. Only an authorized installer with the permission and following requirements of the local electrical authorities should make adjustments. 05

6 PV Rapid Shutdown Equipment (PVRSE) This product is UL Listed as PV Rapid Shut Down Equipment and conforms with NEC-2014 and NEC-2017 section and C Rule Rapid Shutdown of PV Systems, for AC and DC conductors, when installed according to the following requirements: Microinverters and all DC connections must be installed inside the array boundary. Enphase further requires that the microinverters and DC connections be installed under the LG AC Module to avoid direct exposure to rain, UV, and other harmful weather events. The array boundary is defined as 305 mm (1 ft.) from the array in all directions, or 1 m (3 ft.) form the point of entry inside a building. This rapid shutdown system must be provided with an initiating device and (or with) status indicator which must be installed in a location accessible to first responders, or be connected to an automatic system which initiates rapid shutdown upon the activation of a system disconnect or activation of another type of emergency system. The initiator shall be listed and identified as a disconnecting means that plainly indicates whether it is in the off or on position. Examples are: Service disconnecting means. PV system disconnecting means. Readily accessible switch or circuit breaker. Consult the dealer or an experienced radio/tv technician for help. The handle position of a switch or circuit breaker is suitable for use as an indicator. Refer to NEC or CSA C for more information. Additionally, in a prominent location near the initiator device, a placard or label must be provided with a permanent marking including the following wording: PHOTOVOLTAIC SYSTEM EQUIPPED WITH RAPID SHUTDOWN The term PHOTOVOLTAIC may be replaced with PV. The placard, label, or directory shall be reflective, with all letters capitalized and having a minimum height of 9.5 mm (3/8 ) in white on red background. 06

7 INTRODUCTION The LG AC Module consists of a PV module and Grid Support Utility Interactive microinverter. Without any additional equipment, it converts the solar energy to AC power used in electric appliances and supplies to the utility. The Advantages of LG AC Module System The LG AC Module system, unlike a central inverter system, operates with module MPPT. Each LG AC Module operates independently and does not adversely affect other LG AC Modules in the branch circuit. This allows for more production in comparison to a central inverter system. Eliminates installations related to DC voltage, reducing total installation and labor costs. Maintenance is easy as the system can be monitored in real time. LG AC Module System 07

8 BEFORE INSTALLATION Before Installation Please carefully read this manual before installation. LG AC Module is Grid Support 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 systems. Read and follow the installation guidelines specified in this manual. Installation in unapproved methods may result in fatal injuries and/or damage to the equipment. Consult with LG Electronics U.S.A., Inc.( LGEUS ) for the approval of the installation methods that are not specified in the installation manual. Failure to comply will void the warranty and the LG AC Module certificate. After receipt of LG AC Module, check for possible damages from production or transportation. Any damaged LG AC Module must not be installed. Request an exchange by contacting LGEUS. If original LG AC Modules (or parts) are replaced, check that the modified LG AC Module works properly. The modified LG AC Module shall retain its model number. Store the LG AC Module in its original packing until installation. Consider the weight of the LG AC Module before installation. The weight of the LG AC Module is 41.9lbs(19.0kg). Do not work alone. Install as a team with at least 2 persons working at a time. To prevent the risk of accidents, install with safety gear on at all times. Do not install in times of inclement weather. There is a risk of electric shock in the case of rain and snow. If installation location is high above ground, make sure to wear a safety belt during the installation. Check that all parts used during the installation are certified for outdoor usage. During LG AC Module installation, do not let children near the LG AC Module and the system. Carry out the installation according to the local electrical code. Inspecting the Area of Installation Check that the location of installation meets the following requirements. Do not install near highly combustible structures or materials. Do not install where the maximum ambient temperature exceeds 149 F (65 C). Do not install in a place with direct exposure to salt water or ammonia. Do not install in a place easily accessible to people. Do not install indoors or on a moving vehicle. In a place with frequent lightning storms, an auxiliary grounding may be connected directly from the LG AC Module system to the ground by the installer. When installing the system, it is recommended to install a lightning rod to protect the system. High voltage from lightening can cause system damage. Install electrical protection as required. If the target installation structure lies on an unleveled surface, do not forcefully modify the LG AC Module to fit the structure. Make sure that the installation structure has been set up to provide a flat surface. Unreliable structures may cause damage to the product during and/or after installation. 08

9 Inspecting Components of the LG AC Module After receiving the product, inspect all parts for possible deformity or malfunction PV Module Converts the solar energy to DC power. 2 Junction box Extracts the current generated inside the PV module to the outside. 3 Microinverter Converts DC power generated by each PV module to AC power. 4 DC connector Connects a Microinverter to the junction box. Parts and Tools Required In addition to the microinverters, PV modules, and racking, you will need the following : Enphase Equipment Enphase IQ Envoy communications gateway (ENV-IQ-AM1-240) required to monitor solar production. For installation information, refer to the Enphase IQ Envoy Installation and Operations Manual. Enphase Installer Toolkit Download the Enphase Installer Toolkit mobile app and open it to log in to your Enlighten account. With this app, you can scan microinverter serial numbers and connect to the IQ Envoy to track system installation progress. To download, go to enphase.com/toolkit or scan the QR code at right. Tie wraps or Q Cable Clips (Q-CLIP-100) Enphase Sealing caps (Q-SEAL-10) for any unused drops on the Enphase Q Cable Enphase Terminator (Q-TERM-10) typically two needed per branch circuit Enphase Disconnect Tool (Q-DISC-10) Enphase Q Aggregator (Q-BA-3-1P-60) for multiple branch circuits (optional) Field Wireable Connectors (male and female: Q-CONN-10M and Q-CONN-10F) Enphase Q Cable : Cable Model Connector Spacing LG AC Module Orientation Connector Count per box Other Items Q m Q m Q m Portrait Landscape (60Cell) Landscape (72Cell) Number 2 and 3 Phillips screwdrivers A 27 mm open-end wrench or channel lock pliers for terminators Torque wrench, sockets, wrenches for mounting hardware

10 Measuring AC Voltage 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 maximum number of LG AC Modules per array. AC Voltage Number of Maximum LG AC Modules 20A Circuit Breaker Single phase 240V (per 1-array) 13 units 2-pole x 1ea *For details, refer to Appendix.C. Wiring Diagram of the LG AC Module System Below is a sample diagram of the LG AC Module system. LG AC Modules Load center Accessories not in package IQ Envoy Router To Internet Enphase AC Batteries POWER LINE COMMUNICATIONS NETWORK COMMUNICATIONS Install in the following order. For details, please refer to each chapter. Installing the AC Junction Box and PV Rack ; Page 09 Mounting the LG AC Module ; Page 09 Microinverter Installation ; Page 11 Grounding ; Page 16 10

11 LG AC MODULE INSTALLATION Installing the Enphase Q Aggregator or AC Junction Box and PV Rack Before installing the Enphase Q Aggregator or AC junction box and PV rack, be aware of the following requirements : To allow ventilation through the backside of the LG AC Module, it is recommended to install the PV rack, allowing for a gap of at least 4 inches (100mm) between the back of the LG AC Module and roof surface. Install the Enphase Q Aggregator or AC junction box near the PV rack. Install using the parts approved by the relevant local authority of installation site. Select appropriate angle for maximum exposure to sunlight. Construct the overall frame of the solar system in the following order : Install the PV rack according to the number of LG AC Modules per array and the dimensions of the LG AC Module. (refer to Page 20, Product Specifications) Install the Enphase Q Aggregator or AC junction box near the PV rack. See the Enphase Q Aggregator Quick Install Guide. Mounting the LG AC Module Before mounting the LG AC Module in the PV rack, be aware of the following requirements : Check that all parts of the product are intact and operational. Check that the cable connectors are well fixed. It is recommended to install the LG AC Module at an angle with respect to the horizon, making it easier for dust to be washed off by rain. When installed on a roof, the LG AC Module must be mounted over a fire-resistant roof. The fire resistance of the LG AC Module is class C according to ANSI/UL790. A slope less than 5in/ft is required to maintain a fire class rating. For proper operation, do not remove the LG AC Module frame or replace with another frame. Additional holes on the LG AC Module frame may weaken the strength of the frame and cause damage. To avoid the tensile strain from thermal expansion, it is recommended to install with a 0.24in(6mm) gap in between LG AC Modules. Mount LG AC Module to the PV rack with 8~12N m torque. For reliable connection, do not place any foreign objects between LG AC Module frame and the PV rack. When installing LG AC Modules in heavy snow areas, it is recommended to take appropriate countermeasures to prevent possible damages to the bottom frame by slipping snow. We recommend the use of corrosion resistant material according to standard UL1703 or UL2703 for these supporting parts.(a snow guard should be installed in accordance with the manufacturer s instructions.) LG AC Modules (Fire performance : Type 1) shall be mounted with racking and mounting products certified and listed for system fire class rating in accordance with UL1703 edition 2014 and UL2703 edition It is recommended to check with local authorities for fire safety guidelines and requirements for any building or structure on to which the panels will be installed. Four M8(5/16inch) stainless steel bolts, four nuts, four spring washers, and eight flat washers are recommended per AC module. Notes LG AC module is thin, so it may bend depending on the type of the PV racking it is installed with. Reflection from snow, water or other weatherly variables may increase the output generated in the LG AC Module. Colder temperatures may substantially increase voltage and power. 11

12 Site Consideration The LG AC Module should be mounted in a location that meets the following requirements. Operating Temperature Maximum Operating Temperature: +65 C (149 F) Minimum Operating Temperature: -40 C (-40 F) Excluded Operating Environments The LG AC Module can not be operated in a location where they could come in direct contact with salt water or ammonia. Design Strength Basic Load : 75lb/ft 2 Detail of mounting distance is below. 1 Clamping Range : 0mm ~ 120mm Clamping Range : 0mm ~ 120mm 1 270mm 1 1 : 300mm(11.8in) 1 Clamping Range : 130mm Refer to Appendix A for a detailed information on the clamping range. This mounting method uses mounting holes on the frame. The mounting rails must run perpendicularly to the long side of the LG AC Module. Minimum distance between the LG AC Module edge to PV rack is 11.8in(300mm). 12

13 Microinverter Installation Installing the LG AC module involves several key steps. Each step listed here is detailed in the following pages. STEP 1. Prepare the LG AC Module. STEP 2. Position the Enphase Q Cable. STEP 3. Connect the Microinverters. STEP 4. Install an Enphase Q Aggregator or Junction Box. STEP 5. Create an Installation Map. STEP 6. Manage the cabling. STEP 7. Terminate the Unused End of the Cable. STEP 8. Connect to a Junction Box or an Enphase Q Aggregator. STEP 9. Energize the System. Step 1. Prepare the LG AC Module Before installing the LG AC Module, the microinverters must be lifted from the shipping position. On the ground, turn the LG AC Module so that the microinverter faces you. Using both hands, lift the microinverter up. You will hear four clicks as the microinverter locks into the installation position. Ensure that the four latches are locked, and the microinverter is not tilted. Place the LG AC Modules on the roof. Do not place the LG AC Modules in such a way that places pressure on the microinverter. The Microinverter is in the shipping position. The Microinverter is lifted and ready for installation. Make sure that the Microinverter is not tilted. 13

14 NOTICE : If you need to service, you can return the microinverter to the shipping position using the Enphase Disconnect Tool. Use the tool to depress the four locking switches on each corner of the microinverter to return it to the shipping position. Refer to Appendix D for guidance on the removal and attachment of the microinverter. Accessory not in package Step 2. Position the Enphase Q Cable - Plan each cable segment to allow drop connectors on the Enphase Q Cable to align with each LG AC Module. Allow extra length for slack, cable turns, and any obstructions. - Mark the approximate centers of each LG AC Module on the PV racking. - Lay out the cabling along the installed LG AC Modules for the AC branch circuit. Make sure that the cable is positioned in a way that allows you to connect it to the microinverter. - Cut each segment the cable to meet your planned needs. - Lay out the cable to place circuits but do not secure the cable to the rail or LG AC Modules before installing the LG AC Modules. Step 3. Connect the Microinverters - Connect the Q Cable to the microinverter. Listen for a click as the connectors engage. - Cover any unused connectors with Enphase Sealing Caps. Listen for a click as the connectors engage. NOTICE : You must lift the microinverter in order to connect it. A protective shield prevents connection if you have not done so. 14

15 Step 4. Install an Enphase Q Aggregator or Junction Box - Verify that the AC voltage at the site is within range. - Install an Enphase Q Aggregator or junction box at a suitable location on the racking. - Provide an AC connection from the Enphase Q Aggregator back to the electricity network using equipment and practices that are required by local jurisdictions. Step 5. Create an Installation Map The Installation Map is a diagram of the physical location of each LG AC Module in your PV installation. Copy or use the blank map on page 25 to record the LG AC Module placement for the system, or provide your own layout if you require a larger or more intricate installation map. Each LG AC Module and Enphase IQ Envoy has a removable serial number label. Build the installation map by peeling the serial number labels from the LG AC Modules and placing the labels on the map. After you have created the installation map, use the Enphase Installer Toolkit mobile app to record the serial numbers and configure the system. For Installer Toolkit details, refer to Detecting Microinverters in the help topics of the Installer Toolkit app. - Peel the removable serial number label from each microinverter or LG AC Module frame and affix it to the respective location on the installation map paper. - Peel the label from the IQ Envoy (and Enphase IQ Battery, if installed) and affix it to the installation map. - Always keep a copy of the installation map for your records. The Installation Map is in Appendix B. Label affixed to the side of the Microinverter Label affixed to the top of the LG AC Module 15

16 Step 6. Manage the Cabling - Use cable clips to attach the cable to the LG AC Module frame. Leave no more than 1.8 m (six feet) between cable clips. - Dress any excess cabling in loops so that it does not come into contact with the roof. Do not form loops smaller than 12 cm (4¾ inch) in diameter. Step 7. Terminate the Unused End of the Cable Terminate the unused end of the Enphase Q Cable as follows. - Remove 13 mm (½ inch) of the cable sheath from the conductors. Use the terminator loop to measure 13 mm. Terminator Body 13mm Cable Clip Accessory not in package - Slide the hex nut onto the cable. There is a grommet inside of the hex nut that should remain in place. - Insert the cable into the terminator body so that each of the two wires land on opposite sides of the internal separator. Internal View - Insert a screwdriver into the slot on top of the terminator to hold it in place, and use a 27 mm wrench or channel lock pliers to tighten the hex nut. - Attach the terminated cable end to the PV racking with a cable clip or tie wrap so that the cable and terminator do not touch the roof. WARNING : Hold the terminator body stationary with the screwdriver and turn only the hex nut to prevent the conductors from twisting out of the separator. 16

17 Step 8. Connect to a Junction Box or an Enphase Q Aggregator Connect the Enphase Q Cable into the Enphase Q Aggregator. The Enphase Q Cable uses the following wiring color code. A ground lug is provided on the Q Aggregator for convenient LG AC Module/rack/balance of system (BOS) grounding. Refer to the wiring diagrams on Appendix C for more information. Wire colors are listed in the following table. Wire Colors L1 - Black L2 - Red Accessory not in package Step 9. Energize the System - If applicable, turn ON the AC disconnect or circuit breaker for the branch circuit. - Turn ON the main utility-grid AC circuit breaker. Your system will start producing power after a five-minute wait time. - Check the LED on the connector side of the microinverter: LED color Flashing green Indicates Normal operation. AC grid fuction is normal, and there is communication with the IQ Envoy. Flashing orange The AC grid is normal but there is no communication with the IQ Envoy. Flashing Red Solid Red The AC grid is either not present or not within specification. There is an active DC Resistance Low, Power Off Condition. To reset, refer to DC Resistance Low - Power Off Condition on Appendix D. The Microinverter LED 17

18 Grounding Please carefully read this manual before installation. 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 equipment grounding conductor and the neutral grounding conductor are separated. Depending on the local code, connection between the equipment grounding conductor and the neutral conductor may be required in the distribution panel. LGEUS recommends a size no smaller than 12 AWG Cu wires. The AC cable has no neutral conductor. For neutral grounding, refer to the diagram in Appendix C. To form an effective equipment grounding path, do not make any unnecessary paths. Practice according to the local electrical code. An LG AC Module with exposed conductive parts is considered to be in compliance with UL 1703 only when it is electrically grounded in accordance with the instructions presented below and the requirements of the National Electrical Code. All hardware should be consisted of corrosion resistant material, such as stainless steel. All screws and nuts shall be tightened to a torque of 4~5 N m. One M4 stainless steel bolt, one nut, one spring washer, two flat washers, one cup washer, one star washer and 12 AWG Cu wires are recommended per grounding hole. LG AC Module frame Bolt Flat washer Star washer Cup washer Grounding wire Flat washer Spring washer Nut 1. Wiring must be compliant with NEC Article Grounding methods must be compliant with NEC Article CNL model instruction manuals shall also include a statement that notes that the installation shall be in accordance with CSA C22.1, Safety Standard for Electrical Installations, Canadian Electrical Code, Part1. 18

19 Connecting the LG AC Module Array to Distribution Panel - 240VAC Before connecting the Q cable from the AC junction box to the distribution panel, do the following : To prevent the danger of electric shock, check again if the circuit breaker is surely turned off. Install using certified materials and system components. Do not allow liquid to enter the cable connections. This could lead to a danger of an electric shock. Do not use any damaged cables. Do not cut or transform the dedicated cable arbitrarily except for the purpose specific in the installation manual. Refer to Appendix C for an explanation of the AC output cables connection for single phase 240VAC. OPERATION After completing installation for the LG AC Module system, use the Enphase Installer Toolkit to scan the LG AC Modules into the Enphase IQ Envoy database. To install the Enphase IQ Envoy and scan the LG AC Modules, refer to the IQ Envoy Quick Install Guide at MAINTENANCE Water 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 on the front glass. Always wear rubber gloves for electrical insulation while maintaining, washing or cleaning panels. Deposits of foreign material on the frame surface can be cleaned using a wet sponge or soft cloth and dried in air. All works related to repair should only be performed by an approved installer for the safety of workers and systems. 19

20 ACCESSORIES Enphase Accessories Accessory * Accessories not in package Model Spec. Usage Q m Portrait Q m Landscape (60Cell) Q m Landscape (72Cell) Cable Clips Q-CLIP Used to fasten cabling to the racking Sealing Caps Q-BA-CAP-10 Male Used for any unused Q Aggregator Terminator Q-TERM-10 - Typically two needed per branch circuit Disconnect Tool Q-DISC-10 - Disconnect any connector Q Aggregator Q-BA-3-1P-60 - Multiple branch circuits Q-CONN-10M Male Make connections from any Q Aggregator Q-CONN-10F Female Make connections from any Q Cable IQ Envoy ENV-IQ-AM Communications gateway IQ Battery IQPLUS-B1200-LL-I-US00-RV1 - Energy storage device AC Connector (Q Cable) Field Wireable Connectors TE RMINATOR SE ALING CAPS Terminator cap for unused cable ends, sold in packs of ten Sealing caps for unused aggregator (Q-BA-CAP-10) (Q-TERM-10) DISCONNECT TOOL CABLE CLIP Plan to use at least one per installation, sold in packs of ten (Q-DISC-10) Used to fasten cabling to the racking or to secure looped cabling, sold in packs of ten (Q-CLIP-100) Q AGGREGATOR Q CABLE Combines up to three microinverter branches into one home run (Q-BA-3-1P-60) Connect each LG AC Module (Q-12-XX-XXX) FIELD WIREABLE CONNECTORS IQ ENVOY Make connections from any open connector and center feed any section of cable within branch limits (Q-CONN-10M/Q-CONN-10F) Communications gateway (ENV-IQ-AM1-240) IQ BATTERY A device to store and use energy (IQPLUS-B1200-LL-I-US00-RV1) For more information, visit website ( 20

21 PRODUCT SPECIFICATIONS DC Input Rated electrical characteristics except for the power rating within -0/+3 percent are within 5 percent of the measured 2 values at Standard Test Condition(STC) : Irradiance 1000W/m, Cell temp. 25, 1.5AM LGXXXE1C-A5 Parameter Section Unit Pmax at STC [W] Electrical Properties Power Tolerance Voc at STC Isc at STC Vmpp at STC Impp at STC [%] -0 ~ +3 [V] [A] [V] [A] AC Output Parameter Section Unit 240VAC Power Voltage Current Frequency Peak Output Max. Continuous Output Nominal (Range) Nominal Output Nominal (Range) [VA] 290 [VA] 280 [V] 240 (211 ~ 264) [A] 1.17 [Hz] 60.0 (59.3 ~ 60.5) Power Factor / Adjustable CEC Weighted Efficiency Number of Max. AC Modules [Hz] 1 / 0.7 Leading Lagging [%] 97.0 [Units] 13 Response to Abnormal Conditions Parameter Phase Voltage Frequency Range V < V V 120 V 120 > 60.5 < 59.3 Clearing Time (s) Note 1 : This test is performed in nominal conditions, except for test parameter. Note 2 : After clearing, if grid returns to its normal state, it takes about 5 minutes for the LG AC Module to operate. 21

22 Mechanical Properties Microinverter AC Module Mechanical Data Microinverter Model (Utility Interactive) Enclosure Environmental Rating Operating Ambient Temperature Operating Temperature(Internal) Storage Temperature Connector Length Width Height Weight Dimensions Enphase IQ 6+ Microinverter Outdoor - NEMA 250, type 6 (IP 67) -40 ~ 65 (-40 ~ 149 F) -40 ~ 85 (-40 ~ 185 F) -40 ~ 85 (-40 ~ 185 F) mm 1016mm 40mm 19.0kg Unit : mm / inch X X 1st Mounting Hole Not Available X Microinverter 2nd Mounting Hole X X 1st Mounting hole should not be used due to interference with the inverter. 22

23 DISCLAIMER OF LIABILITY / DISPOSAL Disclaimer of Liability Before installing, the installer has to read and completely understand this Installation Manual. If the installer has any questions regarding this installation manual, the installer must contact LGEUS with questions or concerns. By installing an LG AC Module, I discharge, and covenant not to sue LGEUS, its affiliated companies, successors, or assigns, its administrators, directors, agents, officers, volunteer and employees, other participants in any activity connected to installation, operation, or service of LG AC Modules, and if applicable, from all liabilities, claims, demands, losses, or damages on my account caused or alleged to be caused in whole or in part by the negligence of the LGEUS its affiliated companies, successors, or assigns, its administrators, directors, agents, officers, volunteer and employees. Disposal Contact LGEUS if you have questions about disposal or recycling of the LG AC Module. TRANSPORTING AND STORAGE Do not loosen the banding when transporting the modules by truck, ship or other means. If the banding becomes loose, the LG AC Module will not be secured in place, which may cause damage. Maximum stacking height is two pallets. Exceeding this maximum causes stress to the LG AC Module(s) and can cause product damage. REVISIONS TABLE Date Version Description of change Remark (1 st edition) Publish Installation Manual 23

24 APPENDIX A Mechanical Installation : 60Cell Model Fig.1 Bolting Type Fig.2 Clamping Type 1 A B A B : 300mm(11.8 in) Fig.3 Clamping Type Front : 6000Pa(125psf) Rear : 5400Pa(113psf) A : 270mm(10.6 in) B : 400mm(15.7 in) Fig.4 Clamping Type Front : 6000Pa(125psf) Rear : 5400Pa(113psf) A B A B A : 200mm(7.9 in) B : 400mm(15.7 in) Fig.5 Clamping Type A B Front : 4300Pa(90psf) Rear : 4300Pa(90psf) A : 120mm(4.7 in) B : 200mm(7.9 in) A Fig.6 Clamping Type B Front : 1800Pa(37.5psf) Rear : 1800Pa(37.5psf) Front : 2400Pa(50psf) Rear : 2400Pa(50psf) 1 A C A B 2 1 B C A B * 4 point installation is allowed in the following cases: 1. Slope roof: If module is installed parallel to the rooftop. 2. Flat roof: If installed with an additional stand such as wind A : 200mm(7.9 in) B : 400mm(15.7 in) Front : 6000Pa(125psf) Rear : 5400Pa(113psf) A : 120mm (4.7 in) *4point(1) Front : 1800Pa(37.5psf) Rear : 1800Pa(37.5psf) C : 120mm(4.7 in) Front : 3200Pa(67psf) Rear : 1800Pa(37.5psf) A : 120mm B : 843 ±100mm 6point(1+2) (33.2±3.9 in) Note) All mechanical installation methods(fig.1 to Fig.6) in this appendix were not tested by UL. (UL 1703, ULC 1703) It is evaluated by LG internal test. 24 Front : 6000Pa(125psf) Rear : 5400Pa(113psf)

25 Alternate Equipment Grounding Devices This appendix defines alternative grounding methods for LG AC Module and applies to the LG AC Module Install manual and listed manufacturer s installation guide. These alternative grounding devices indicated on this page has been evaluated and approved by LG, not by UL. If such devices are be used to meet the requirement in UL1703, additional adequate tests must be conducted in accordance with UL1703. Line of Devices Manufacture Everest IronRidge Unirac Panel Claw Quickmount PV SnapNrack Ecolibrium Pegasus Schletter Dynorax Roof Tech ILSCO TYCO Wiley Burndy Products Ground Devices - Everest Solar Universal Bonding Clamp - IronRidge IG (Integrated Grounding) Clamp / UFO Mid Clamp - Unirac Bonding Mid Clamp / SunFrame Micro Rail / Wire Bonding Clip w/ 8 AWG - Standard Claw / Long Claw / PolaBear III Claw - Quick Rack Panel Clamp - SnapNrack Bonding Mid Clamp / SnapLink for RL system - EcoX Clamp and Coupling assembly / EcoFoot Clamp - Pegasus LightSpeed Corners - Rapid Grounding Module Clamps - DynoBond - Roof Tech Bonding Plate - ILSCO SGB-4 Solar Grounding Lug - TYCO / SolarLock Grounding Assy WEEB LUG / WEEB KMC in combination with Everest clamp / WEEB DMC in combination with IronRidge clamp / Wiley WEEB UMC or UGC-1 in combination with Unirac clamp / WEEB PMC in combination with Pro Solar clamp / WEEB DPW in combination with DPW Solar clamp Remark Important Notes 1. The NEC section states, Exposed non-current carrying metal parts of module frame, equipment and conductor enclosures shall be grounded in accordance with or (A) regardless of voltage 2. Functionality of the devices listed not be guaranteed if reused. 25

26 APPENDIX B Installation Map 26

27 APPENDIX C Sample Wiring Diagram NOTE : Ground LG AC Modules according to local requirements. 27

28 APPENDIX D Troubleshooting Follow all the safety measures described throughout this manual. Qualified personnel can use the following troubleshooting steps if the PV system does not operate correctly. Status LED Indications and Error Reporting The following section describes LED indications. LED Operation WARNING : Risk of electric shock. Do not attempt to repair the Enphase Microinverter; it contains no user-serviceable parts. If it fails, contact Enphase customer service to obtain an RMA (return merchandise authorization) number and start the replacement process. LED color Flashing green Flashing orange Indicates Normal operation. AC grid function is normal, and there is communication with the IQ Envoy. The AC grid is normal, but there is no communication with the IQ Envoy. Flashing Red Solid Red The AC grid is either not present or not within specification. There is an active DC Resistance Low, Power Off Condition or GFDI fault. To reset, refer to the DC Resistance Low - Power Off Condition The status LED on each microinverter lights green about six seconds after DC power is applied. It remains lit solid for two minutes, followed by six green blinks. After that, red blinks indicate that no grid is present if the system is not yet energized. Any short red blinks after DC power is first applied to the microinverter indicate a failure during microinverter startup. DC Resistance Low Power Off Condition For all IQ Microinverter of LG AC Modules, a solid red status LED when DC power has been cycled indicates the microinverter has detected a DC Resistance Low Power Off event. The LED will remain red and the fault will continue to be reported by the Envoy until the error has been cleared. An insulation resistance (IR) sensor in the microinverter measures the resistance between the positive and negative PV inputs to ground. If either resistance drops below a threshold, the microinverter stops power production and raises this condition. This may indicate defective module insulation, defective wiring or connectors, moisture ingress, or a similar problem. Although the cause may be temporary, this microinverter condition persists until the sensor is manually reset. An IQ Envoy is required to clear this condition. The condition clears on operator command unless its cause is still present. If a microinverter registers a DC Resistance Low - Power Off condition, you can attempt to clear this condition. If the condition does not clear after you perform the following procedure, contact Enphase Energy customer support at enphase.com/en-us/support/contact. There are two ways to send a clear message to the microinverter. Note that the condition will not clear after sensor reset if the cause of the failure is still present. If the condition persists, contact your installer. 28

29 Method 1: Clear this Error Using Enlighten A. Log in to Enlighten and access the system. B. Click the Events tab. The next screen shows a current DC Resistance Low - Power Off condition for the system. C. Click DC Resistance Low - Power Off. D. Where n is the number of affected devices, click n devices (show details). E. Click the serial number of the affected microinverter. F. Click Reset DC Resistance Low - Power Off Sensor. The system displays, A DC Resistance Low- Power Off reset task was issued on [date and time] for this microinverter and is still pending. Method 2: Use Installer Toolkit to Clear the Condition Follow the instructions in the Enphase IQ Envoy Installation and Operation Manual at enphase.com/support to clear this condition. Other Faults All other faults are reported to the Envoy. Refer to the Enphase IQ Envoy Installation and Operation Manual at enphase.com/support for troubleshooting procedures. 29

30 Troubleshoot an Inoperable Microinverter To troubleshoot an inoperable microinverter, follow the steps in the order shown. WARNING: Risk of electric shock. Always de-energize the AC branch circuit before servicing. Never disconnect the DC connectors under load. WARNING: The Enphase Microinverters are powered by DC power from the PV modules. Make sure you disconnect the DC connections and reconnect DC power and then watch for the solid green about six seconds after connection to DC power. A. Make sure AC breakers and disconnects are closed. B. Check the connection to the utility grid and verify that the utility voltage is within allowable ranges. C. Verify that AC line voltages at all solar power circuit breakers at the load center and subpanels are within the ranges shown in the following table. D. Verify that AC line voltage at the junction box or Q Aggregator for each AC branch circuit is within the ranges shown in the following table: 240 Volt AC, Single Phase L1 to L2 211 to 264 VAC L1, L2 to ground 106 to 132 VAC E. Using an Enphase disconnect tool, disconnect the AC cable for the microinverter in question from the Enphase Q Cable. F. Verify that utility power is present at the microinverter by measuring line to line and line to ground at the Enphase Q Cable connector. G. Visually check that the AC branch circuit connections (Enphase Q Cable and AC connections) are properly seated. Reseat if necessary. Check also for damage, such as rodent damage. H. Make sure that any upstream AC disconnects, as well as the dedicated circuit breakers for each AC branch circuit, are functioning properly and are closed. I. Disconnect and re-connect the Enphase DC connectors. The status LED of each microinverter will light solid green a few seconds after connection to DC power and then blink green six times to indicate normal start-up operation about two minutes after connecting to DC power. The LED subsequently resumes normal operation if the grid is present. See page 25 for normal LED operation. J. Attach an ammeter clamp to one conductor of the DC cables from the PV module to measure microinverter current. This will be under one amp if AC is disconnected. K. Verify the PV module DC voltage is within the allowable range shown in Specifications on page 31 of this manual. L. Following the steps in Remove and Replace a Microinverter, remove the PV panel from the roof, and swap out the microinverter with one from a known good, adjacent AC module. If after checking Enlighten periodically (this may take up to 30 minutes), the problem moves to 30

31 the adjacent LG AC Module, this indicates that the PV module isn t functioning correctly. If it stays in place, the problem is with the original microinverter. Contact Enphase Customer Support for help in reading the microinverter data and for help in obtaining a replacement microinverter, if needed. M. Check the DC connections between the microinverter and the PV module. The connection may need to be tightened or reseated. If the connection is worn or damaged, it may need replacement. N. Verify with your utility that line frequency is within range. O. If the problem persists, contact Customer Support at enphase.com/en-us/support/contact. Remove and Replace a Microinverter If problems remain after following the troubleshooting steps listed previously, contact Enphase at enphase.com/en-us/support/contact. If Enphase authorizes a replacement, follow the steps below. To ensure the microinverter is not disconnected from the PV modules under load, follow the disconnection steps in the order shown: A. De-energize the AC branch circuit breaker. B. Enphase AC connectors are tool-removable only. To disconnect the microinverter from the Enphase Q Cable, insert the disconnect tool and remove the connector. C. Remove the LG AC Module from the roof per manufacturer instructions. D. Once on the ground, disconnect the PV module DC connector from the microinverter using the Enphase disconnect tool. E. Press each of the four clips to free the microinverter. F. Snap new replacement microinverter into place. G. Connect the PV Module DC connectors to the microinverter. H. Scan the new serial number. NOTE: The serial number of the replacement microinverter will different from the serial number of the LG AC Module frame. I. Bring the LG AC Module back onto the roof or other mounting location. J. Connect the LG AC Module AC connector and DC Connector to the Q Cable. K. Energize the AC branch circuit breaker, and verify operation of the replacement microinverter by checking the Status LED on the connector side of the microinverter. 31

32 L. On the ground, use the Installer Toolkit mobile app to delete the old microinverter serial number from the Enphase IQ Envoy database. In Installer Toolkit, once connected to the Envoy: a. Tap Micros > Manage. b. Tap the checkbox to the right of the microinverter serial number that you replaced. c. Tap to delete the microinverter from the Envoy-S database. M. Add the new microinverter serial number to the Envoy database by initiating a device scan using one of the following methods: a. Method 1: Initiate a scan using the Installer Toolkit mobile app In Installer Toolkit, once connected to the IQ Envoy, navigate to the Overview screen. From the Overview screen, tap Detected > Start Device Scan to start a new 30- minute device scan. If device scanning on the IQ Envoy is inhibited, the app displays Scan Inhibited. If you need to add more microinverters to the system when device scanning is inhibited on the IQ Envoy, you must use the Installer Toolkit scanning tool to provision them on the IQ Envoy, rather than using the IQ Envoy s device scanning function to discover them. If this is not possible and you need to enable device scanning on the IQ Envoy, contact Enphase Customer Support at enphase.com/en-us/support/contact. b. Method 2: Use an IQ Envoy Press the Device Scan button on the IQ Envoy. The IQ Envoy begins a 15-minute scan to identify all of the microinverters deployed at the site. The Microinverter Communications LED flashes green during the scan. Microinverter Communications LED Device Scan button N. Log in to Enlighten to use Enlighten s Array Builder to add the newly detected microinverter to the virtual array. O. Ship the old microinverter to Enphase using the supplied return-shipping label. 32

33 APPENDIX E Methods of Grounding There are two methods of grounding shown below. Using a grounding wire Determine the size of an external ground wire according to NEC 690. A grounding conductor with or without installation may be used, provided that the terminations are reliably available. Grounding Wire AC Junction Box Accessory not in package Using listed EGC Use equipment grounding conductors approved by NEC 250. Bonding Jumper Grounding Wire EGC(ex.Metal Rack) AC Junction Box Accessory not in package For equipment grounding, LG AC Module uses an external grounding equipment conductor. AC cable does not provide a grounding conductor, grounding is provided only by the external connection to the LG AC Module frame. Note) All methods of grounding in this appendix were not tested by UL. 33

34 MEMO

35 MEMO

36 Enphase Contact Information Enphase Energy Inc N. McDowell Blvd. Petaluma, CA USA 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.