enphase IQ 7 Series Installation And Operation Manual
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enphase IQ 7 Series Installation And Operation Manual

Micros with en4 bulkhead
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INSTALLATION AND OPERATION
MANUAL
Enphase IQ 7, IQ 7+, IQ 7X, and IQ 7A
Micros with EN4 Bulkhead
IQ 7 Series Micro with EN4 Bulkhead
June 11, 2020
141-00047-01

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Summary of Contents for enphase IQ 7 Series

  • Page 1 INSTALLATION AND OPERATION MANUAL Enphase IQ 7, IQ 7+, IQ 7X, and IQ 7A Micros with EN4 Bulkhead IQ 7 Series Micro with EN4 Bulkhead June 11, 2020 141-00047-01...
  • Page 2 For Enphase patent information refer to enphase.com/company/patents/. © 2020 Enphase Energy Inc. All rights reserved. Enphase, the Enphase logo, IQ 7, IQ 7+, IQ 7X, IQ 7A, IQ Envoy, IQ Combiner, IQ Microinverter, Installer Toolkit, Enlighten and other trademarks or service names are the trademarks of Enphase Energy, Inc.

  • Page 3: Table Of Contents

    Step 6: Connect the Microinverters ........................ 19 Step 7: Terminate the Unused End of the Cable.................... 20 Step 8: Complete Installation of the Enphase Q Aggregator or Junction Box ..........21 Step 9: Connect the PV Modules ........................21 Step 10: Energize the System ........................22 Set Up and Activate Monitoring ........................
  • Page 4 IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation Ordering Replacement Parts .......................... 29 Enphase Q Cable Planning and Ordering ...................... 29 Connector Spacing Options ........................... 29 Cabling Options .............................. 29 Enphase Q Cable Accessories........................30 Technical Data ................................

  • 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 Series Microinverter Safety Instructions

    You must protect each microinverter AC branch circuit with a 20 A maximum breaker or fuse as appropriate. 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 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: Pv Rapid Shutdown Equipment (Pvrse)

    • 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 PV module to avoid direct exposure to rain, UV, and other harmful weather events.

  • Page 9: The Enphase Iq System

    Enphase IQ Microinverters over on-site AC power lines and transmits the data to Enlighten through an Internet or cellular modem connection. The IQ Envoy is capable of monitoring up to 600 Enphase IQ Microinverters and up to 39 Enphase IQ Batteries. For details, refer to Enphase IQ Envoy Installation and Operations Manual.

  • Page 10: 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 11: 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 and IQ 7A Micro support PV modules with 60 or 72 Cells. The IQ 7X requires a 96-cell PV module. All of them install quickly and easily.

  • Page 12: About En4 Bulkhead Microinverters

    If your PV modules have TE PV4S SOLARLOK connectors, or other connectors Listed and identified for intermatability with the Enphase EN4 bulkhead connector, you may plug them directly into the IQ 7 Series microinverter with EN4 bulkhead. For other connector combinations, Enphase bulkhead adapters are required.

  • Page 13: 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 14: 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 15: Enphase Microinverter Installation

    IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead 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.

  • Page 16: Step 1: Position The Enphase Q Cable

    IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead 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 17: Step 3: Mount The Microinverters

    8 mm (5/16”) mounting hardware: 9 N m (80 to 85 in-lbs.) • When using UL 2703 mounting hardware, use the manufacturer’s recommended torque value DC Connector AC Connector IQ 7 Series Micro with EN4 Bulkhead © 2020 Enphase Energy Inc. All rights reserved. 141-00047-01...

  • Page 18: 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 19: 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 20: Step 7: Terminate The Unused End Of The Cable

    IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation Step 7: Terminate the Unused End of the Cable Terminate the unused end of the Enphase Q Cable as follows. Terminator 13mm Body A.

  • Page 21: Step 8: Complete Installation Of The Enphase Q Aggregator Or Junction Box

    WARNING: If adapters are used, ensure that they are installed in the correct orientation. A. If required, attach the Enphase DC bulkhead adapters to the microinverters. Make sure they are fully seated. Do not reverse the adapter connections. Ensure that the PV4-S connector from the adapter is connected to the EN4 bulkhead.

  • Page 22: Step 10: Energize The System

    “DC Resistance Low – Power Off Condition” on page 23. 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 23: 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 24: 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 25: 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 26: Disconnect A Microinverter

    O. If the problem persists, contact Customer Support at enphase.com/en-us/support/contact. Disconnect 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.

  • Page 27: 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 28 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. © 2020 Enphase Energy Inc. All rights reserved.

  • Page 29: 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 30: Enphase Q Cable Accessories

    IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead 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 31: Technical Data

    Technical Data Technical Considerations Be sure to apply the following when installing the Enphase IQ 7 Series 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 32: Specifications

    AC short circuit fault current over 3 cycles A rms for over 3 5.8 Arms cycles 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. © 2020 Enphase Energy Inc. All rights reserved. 141-00047-01...
  • Page 33 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. © 2020 Enphase Energy Inc. All rights reserved. 141-00047-01...
  • Page 34 Communication Power line communication (PLC) Integrated DC disconnect/ The DC and AC connectors have been evaluated and Integrated AC disconnect approved for use as the load-break disconnect required by NEC 690. © 2020 Enphase Energy Inc. All rights reserved. 141-00047-01...

  • Page 35: Iq7Plus-72-E-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. © 2020 Enphase Energy Inc. All rights reserved. 141-00047-01...
  • Page 36 Integrated AC disconnect 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. © 2020 Enphase Energy Inc. All rights reserved. 141-00047-01...

  • Page 37: Iq7X-96-E-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. © 2020 Enphase Energy Inc. All rights reserved. 141-00047-01...
  • Page 38 Integrated AC disconnect 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. © 2020 Enphase Energy Inc. All rights reserved. 141-00047-01...

  • Page 39: Iq7A-72-E-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. © 2020 Enphase Energy Inc. All rights reserved. 141-00047-01...
  • Page 40 Integrated AC disconnect 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. © 2020 Enphase Energy Inc. All rights reserved. 141-00047-01...

  • Page 41: Q Cable Specifications

    Enphase Connector Ratings Enphase Connectors on the cable assemblies in the following table have a maximum current of 20 A, a maximum OCPD of 20 A, and maximum ambient temperature of -40° to +79° C (-40° to +174.2° F) and are rated for disconnection under load.

  • Page 42: Enphase Installation Map

    IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation Enphase Installation Map © 2020 Enphase Energy Inc. All rights reserved. 141-00047-01...

  • Page 43: Sample Wiring Diagram

    IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation Sample Wiring Diagram © 2020 Enphase Energy Inc. All rights reserved. 141-00047-01...

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