enphase Q 7 Micro Installation And Operation Manual

enphase Q 7 Micro Installation And Operation Manual

Microinverters
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INSTALLATION AND OPERATION
MANUAL
Enphase
IQ 7, IQ 7+, and IQ 7X Micros
May 15, 2018
141-00043-02

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Summary of Contents for enphase Q 7 Micro

  • Page 1 INSTALLATION AND OPERATION MANUAL Enphase IQ 7, IQ 7+, and IQ 7X Micros May 15, 2018 141-00043-02...
  • Page 2 User documentation is updated frequently; Check the Enphase website (enphase.com/support) for the latest information. To ensure optimal reliability and to meet warranty requirements, the Enphase Microinverter must be installed according to the instructions in this manual. For warranty text refer to enphase.com/warranty.
  • Page 3: Table Of Contents

    IQ 7 Microinverter Safety Instructions ......................5 PV Rapid Shutdown Equipment (PVRSE) ....................... 7 The Enphase IQ System..............................8 How the Enphase IQ Series Micros Work ......................9 System Monitoring ............................9 Optimal Reliability ............................9 Ease of Design ............................. 9 Planning for Microinverter Installation...........................
  • Page 4 IQ 7 / IQ 7+ / IQ 7X Micro Installation and Operation Q Cable Specifications ..........................38 Enphase Connector Ratings ........................38 Enphase Installation Map ..........................39 Sample Wiring Diagram: ..........................40 © 2018 Enphase Energy Inc. All rights reserved. 141-00043-02...
  • Page 5: Important Safety Information

    Double-insulated Safety and Advisory Symbols To reduce the risk of electric shock, and to ensure the safe installation and operation of the Enphase IQ System, the following safety symbols appear throughout this document to indicate dangerous conditions and important safety instructions.
  • Page 6 IQ 7 / IQ 7+ / IQ 7X Micro Installation and Operation Do not use Enphase equipment in a manner not specified by the manufacturer. Doing so may cause DANGER: Risk of death or injury to persons, or damage to equipment.
  • Page 7: Pv Rapid Shutdown Equipment (Pvrse)

    When installing the Enphase Q Cable, secure any loose cable to minimize tripping hazard. When looping the Enphase Q Cable, do not form loops smaller than 4.75” (12 cm) in diameter. NOTES: Provide support for the Enphase Q-Cable every 1.8m (6 feet).
  • Page 8: The Enphase Iq System

    The Enphase IQ System The Enphase IQ System includes: • Enphase IQ 7, IQ 7+, and IQ 7X Micros The smart grid ready IQ Series Micros convert the DC output of the PV module into grid-compliant AC power. • Enphase IQ Envoy™ (ENV-IQ-AM1-240) The Enphase IQ Envoy is a communication device that provides network access to the PV array.
  • Page 9: How The Enphase Iq Series Micros Work

    PV module. System Monitoring Once you install the Enphase IQ Envoy and provide an internet connection through a broadband router or modem, the Enphase IQ Microinverters automatically begin reporting to Enlighten. Enlighten presents current and historical system performance trends and informs you of PV system status.
  • Page 10: Planning For Microinverter Installation

    Planning for Microinverter Installation The Enphase IQ 7 Micro is compatible with 60-cell PV modules, and the IQ 7+ Micro supports PV modules with 60 or 72 Cells. The IQ 7X requires a 96-cell PV module. All of them install quickly and easily.
  • Page 11: Branch Circuit Capacity

    Select the correct wire size based on the distance from the beginning of the microinverter AC branch circuit to the breaker in the load center. Enphase recommends a voltage rise total of less than 2% for the sections from the microinverter AC branch circuit to the breaker in the load center.
  • Page 12: Lightning And Surge Suppression

    For this reason, Enphase recommends that you protect your system with a lightning and/or surge suppression device. In addition to having some level of surge suppression, it is also important to have insurance that protects against lightning and electrical surges.
  • Page 13: Parts And Tools Required

    • 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...
  • Page 14: Enphase Microinverter Installation

    IQ 7 / IQ 7+ / IQ 7X Micro Installation and Operation Enphase Microinverter Installation Installing the Enphase IQ Series Micros involves several key steps. Each step listed here is detailed in the following pages. Step 1: Position the Enphase Q Cable...
  • Page 15: Step 1: Position The Enphase Q Cable

    IQ 7 / IQ 7+ / IQ 7X Micro Installation and Operation Step 1: Position the Enphase Q Cable A. Plan each cable segment to allow drop connectors on the Enphase Q Cable to align with each PV module. Allow extra length for slack, cable turns, and any obstructions.
  • Page 16: Step 3: Mount The Microinverters

    IQ 7 / IQ 7+ / IQ 7X Micro Installation and Operation Step 3: Mount the Microinverters A. If the Enphase DC bulkhead connectors are not already attached to the microinverters, attach them now. Make sure they are fully seated.
  • Page 17: Step 4: Create An Installation Map

    Each Enphase Microinverter, Envoy, and Battery have a removable serial number label. Build the installation map by peeling the serial number labels from the microinverter mounting plates and placing the labels on the map. You will also place the Enphase IQ Envoy and IQ Battery serial number on the map after installation.
  • Page 18: Step 5: Manage The Cabling

    Step 6: Connect the Microinverters A. Connect the microinverter. Listen for a click as the connectors engage. B. Cover any unused connector with Enphase Sealing Caps. Listen for a click as the connectors engage. WARNING: Risk of electric shock. Risk of fire. Install sealing caps on all unused AC connectors as these connectors become live when the system is energized.
  • Page 19: Step 7: Terminate The Unused End Of The Cable

    IQ 7 / IQ 7+ / IQ 7X Micro Installation and Operation Step 7: Terminate the Unused End of the Cable Terminate the unused end of the Enphase Q Cable as follows. 13mm Terminator Body A. Remove 13 mm (½ inch) of the cable sheath from the conductors.
  • Page 20: Step 8: Complete Installation Of Junction Box

    IQ 7 / IQ 7+ / IQ 7X Micro Installation and Operation Step 8: Complete Installation of Junction Box A. Connect the Enphase Q Cable into the junction box. B. Refer to the wiring diagrams on page 40 for more information. Wire colors are listed in the following table.
  • Page 21: Step 10: Energize The System

    “DC Resistance Low – Power Off Condition” on page 22. Set Up and Activate Monitoring Refer to the Enphase IQ Envoy Quick Install Guide to install the IQ Envoy and set up system monitoring and grid management functions. This guide leads you through the following: •...
  • Page 22: Troubleshooting

    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.
  • Page 23: Other Faults

    The app then indicates that a clear message was sent. 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.
  • Page 24: Troubleshoot An Inoperable Microinverter

    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.
  • Page 25: Disconnect A Microinverter

    NOTE: Take care when measuring DC current as most clamp-on meters must be zeroed first and tend to drift with time. E. Disconnect the PV module DC wire connectors from the microinverter using the Enphase disconnect tool. F. If present, loosen and/or remove any bonding hardware.
  • Page 26: Install A Replacement Microinverter

    • Do not mount the microinverter upside down. • Do not expose the AC or DC connectors (on the Enphase Q Cable connection, PV module, or the microinverter) to rain or condensation before the connectors are mated. C. Torque the mounting fasteners to the values shown. Do not over torque.
  • Page 27 K. Log in to Enlighten to use Enlighten’s Array Builder to add the newly detected microinverter to the virtual array. L. Ship the old microinverter to Enphase using the supplied return-shipping label. © 2018 Enphase Energy Inc. All rights reserved.
  • Page 28: Ordering Replacement Parts

    These parts are available from your Enphase distributor. Enphase Q Cable Planning and Ordering The Enphase Q Cable is a continuous length of 12 AWG, double insulated, outdoor-rated cable with integrated connectors for microinverters. These connectors are preinstalled along the Q Cable at intervals to accommodate varying PV module widths.
  • Page 29: Enphase Q Cable Accessories

    IQ 7 / IQ 7+ / IQ 7X Micro Installation and Operation Enphase Q Cable Accessories The Enphase Q Cable is available with several accessory options for ease of installation, including: • Field wireable connectors (male): (Q-CONN-10M) Make connections from any Field Wireable female connector •...
  • Page 30: Technical Data

    Technical Data Technical Considerations Be sure to apply the following when installing the Enphase IQ 7 and/or IQ 7+ Micro System: WARNING: Risk of equipment damage. You must match the DC operating voltage range of the PV module with the allowable input voltage range of the Enphase Microinverter.
  • Page 31: Specifications

    AC short circuit fault current over 3 cycles A rms for over 3 cycles 5.8 Arms No enforced DC/AC ratio. See the compatibility calculator at enphase.com/en-us/support/module-compatibility Nominal Voltage Range can be extended if required by the utility. © 2018 Enphase Energy Inc. All rights reserved. 141-00043-02...
  • Page 32 Relative humidity range 4% to 100% condensing Approved for wet locations Pollution degree Limits may vary. Refer to local requirements to define the number of microinverters per branch in your area. © 2018 Enphase Energy Inc. All rights reserved. 141-00043-02...
  • Page 33 Integrated DC disconnect use as the load-break disconnect required by NEC 690. The AC connector has been evaluated and approved for Integrated AC disconnect use as the load-break disconnect required by NEC 690. © 2018 Enphase Energy Inc. All rights reserved. 141-00043-02...
  • Page 34: Iq7Plus-72-2-Us Microinverter Specifications

    Overvoltage class AC port AC port backfeed under single fault Power factor setting No enforced DC/AC ratio. See the compatibility calculator at enphase.com/en-us/support/module-compatibility Nominal Voltage Range can be extended if required by the utility. © 2018 Enphase Energy Inc. All rights reserved. 141-00043-02...
  • Page 35 The AC connector has been evaluated and approved for use as the load-break disconnect required by NEC 690. Limits may vary. Refer to local requirements to define the number of microinverters per branch in your area. © 2018 Enphase Energy Inc. All rights reserved. 141-00043-02...
  • Page 36: Iq7X-96-2-Us Microinverter Specifications

    Overvoltage class AC port AC port backfeed under single fault Power factor setting No enforced DC/AC ratio. See the compatibility calculator at enphase.com/en-us/support/module-compatibility Nominal Voltage Range can be extended if required by the utility. © 2018 Enphase Energy Inc. All rights reserved. 141-00043-02...
  • Page 37 The AC connector has been evaluated and approved for use as the load-break disconnect required by NEC 690. Limits may vary. Refer to local requirements to define the number of microinverters per branch in your area. © 2018 Enphase Energy Inc. All rights reserved. 141-00043-02...
  • Page 38: Q Cable Specifications

    Cable connector dimensions Enphase Connector Ratings Enphase connectors in the following table have a maximum current of 20A, a maximum OCPD of 20 A, and an ambient temperature range of -40° to +79° C (-40° to +174.2° F). Part Number...
  • Page 39: Enphase Installation Map

    IQ 7 / IQ 7+ / IQ 7X Micro Installation and Operation Enphase Installation Map © 2018 Enphase Energy Inc. All rights reserved. 141-00043-02...
  • Page 40: Sample Wiring Diagram

    IQ 7 / IQ 7+ / IQ 7X Micro Installation and Operation Sample Wiring Diagram: © 2018 Enphase Energy Inc. All rights reserved. 141-00043-02...

This manual is also suitable for:

Iq 7+ microIq 7x micro

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