enphase IQ8 Series Installation And Operation Manual
Microinverters
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- Design manual (75 pages) ,
- Installation and operation manual (49 pages) ,
- Quick install manual (6 pages)
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Summary of Contents for enphase IQ8 Series
- Page 1 INSTALLATION AND OPERATION MANUAL Enphase IQ8 Series Microinverters I Q8AC and IQ8HC © 2023 Enphase Energy Inc. All rights reserved. June 2023 USM-00005-2.0...
- Page 2 The full text of the EU Declaration of Conformity (DoC) is available at the following internet address https:/ /enphase.com/en-au/installers/resources/documentation © 2023 Enphase Energy. All rights reserved. Enphase, the e and CC logos, IQ, and certain other marks listed https:/ /enphase.com/trademark-usage-guidelines are trademarks of Enphase Energy, Inc.
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Page 3: Table Of Contents
Important safety information ........................5 IQ8 Series Microinverters safety instruction ....................5 The Enphase IQ System ..........................9 How the Enphase IQ8 Series Microinverters work ..................10 System monitoring ............................10 Optimal reliability ............................10 Ease of design ..............................10 Planning for microinverter installation ....................... - Page 4 IQ8AC/IQ8HC Installation and Operation Manual Specifications ............................... 28 IQ8AC-72-M-INT Microinverter specifications ................... 28 IQ8HC-72-M-INT Microinverter specifications ................... 30 Enphase installation map ..........................32 Enphase wiring diagram ..........................33 Revision history ............................35 © 2023 Enphase Energy Inc. All rights reserved. June 2023 USM-00005-2.0...
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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 IQ8 Series Microinverters System, the following safety symbols appear throughout this document to indicate dangerous conditions and important safety instructions. - Page 6 Note that single-phase IQ Relay is rated for 20 A, whereas multi- phase IQ Relay is rated for 25 A. DANGER: Risk Do not use Enphase equipment in a manner not specified by the manufacturer. of electric Doing so may cause death or injury to persons or damage to equipment.
- Page 7 IQ8AC/IQ8HC Installation and Operation Manual The maximum open circuit voltage of the PV module must not exceed the specified maximum input DC voltage of the Enphase microinverter. Refer to the Enphase compatibility calculator to verify PV module electrical compatibility with the microinverter. Use IQ8 Series Microinverters only with compatible PV modules as per Enphase compatibility calculator.
- Page 8 • Avoid overly tight bending radii. The minimum bend radii for the DC cable is 8 X cable outer diameter. • Avoid overly tight-sized cable clips for routing. © 2023 Enphase Energy Inc. All rights reserved. June 2023 USM-00005-2.0...
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Page 9: The Enphase Iq System
The IQ Gateway is a communication device that provides network access to the PV array. The IQ Gateway collects production and performance data from the IQ8 Series Microinverters over on-site AC power lines and transmits the data to Enphase App through a broadband or cellular connection. -
Page 10: How The Enphase Iq8 Series Microinverters Work
PV system. Enphase microinverters are designed to operate at full power at ambient temperatures as high as 65°C and much higher microinverter temperatures. -
Page 11: Planning For Microinverter Installation
24. Compatibility The IQ8 Series Microinverters are electrically compatible with PV modules as listed in the following table. For specifications, see “Technical Data” on page 27 of this manual. You can refer to the Enphase compatibility calculator at: https:/ /enphase.com/en-au/installers/microinverters/calculator to verify PV module electrical compatibility. - Page 12 Select the correct conductor size based on the distance from the junction with the microinverter AC branch circuit to the circuit breaker in the electrical panel. Enphase recommends a voltage rise total of less than 2% from the start of IQ Cable to the point of supply.
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Page 13: Parts And Tools Required
Gateway Installation and Operation Manual. Enphase Installer App: Download the Enphase Installer App, open it, and log in to your Enphase Account. Use it later to scan the microinverter serial numbers and connect to the IQ Gateway to track system installation Android progress. -
Page 14: Enphase Microinverters Installation
IQ8AC/IQ8HC Installation and Operation Manual 5. Enphase microinverters installation Installing the IQ8 Series Microinverters involves several key steps. Each step listed here is detailed in the following pages. Step 1: Position the IQ Cable Step 2: Position the junction box... -
Page 15: Step 1: Position The Iq Cable
UV, and other harmful weather events. WARNING: Install the microinverter under the PV module to avoid direct exposure to rain, UV, and other harmful weather events. Do not mount the microinverter upside down. © 2023 Enphase Energy Inc. All rights reserved. June 2023 USM-00005-2.0... -
Page 16: Step 4: Create An Installation Map
Step 4: Create an installation map The Enphase installation map is a diagram of the physical location of each microinverter in your PV array. Copy or use the blank map on page 32 to record microinverter placement for the system or provide your own layout if you require a larger or more intricate installation map. -
Page 17: Step 5: Manage The Cabling
IQ8AC/IQ8HC Installation and Operation Manual Each Enphase microinverter, IQ Gateway, and IQ 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 should also place the IQ Gateway and IQ Battery serial numbers on the map after installation. -
Page 18: Step 7: Terminate The Unused End Of The Iq Cable
IQ Sealing Caps are required for protection against moisture ingress. WARNING: Enphase microinverters cannot be installed without AC and DC connections and left overnight. All connections must be watertight from installation. -
Page 19: Step 8: Complete The Installation Of The Junction Box
B. Check the LED on the connector side of the microinverter. The LED flashes green six times when DC power is applied. C. Mount the PV modules above the microinverters. Status LED © 2023 Enphase Energy Inc. All rights reserved. June 2023 USM-00005-2.0... -
Page 20: Step 10: Energize The System
You can set the grid profile through the Enphase Installer Platform during system registration or through Enphase Installer App at any time. You must have an IQ Gateway to set or change the grid profile. For more information on setting or changing the grid profile, refer to the IQ Gateway... -
Page 21: Troubleshooting
DC Resistance Low – Power Off condition For all IQ8 Series Microinverters, 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 gateway until the error has been cleared. -
Page 22: Other Faults
WARNING: Risk of electric shock. Always de-energize the AC branch circuit before servicing. Never disconnect the DC or AC 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 the DC power and then watch for the solid green for about six seconds after connection to DC power. -
Page 23: Disconnect A Microinverter
PV module electrical compatibility with the microinverter. L. Swap DC leads with a known good, adjacent PV module. If after checking the Enphase Installer Platform periodically (this may take up to 30 mins), the problem moves to the adjacent module, this indicates that the PV module is not functioning correctly. -
Page 24: Install A Replacement Microinverter
Add the new microinverter serial number to the gateway database by scanning the barcode using Enphase Installer App and your device camera. d. Tap “Devices & Array” > “IQ Microinverters & Array” > “ADD DEVICES”. Scan the IQ8 Series Microinverter’s barcode and assign it to the array. -
Page 25: Iq Cable Planning And Ordering
Field Wireable Connectors (male and female; single-phase: Q-CONN-R-10M and Q-CONN-R-10F; multi-phase: Q-CONN-3P-10M and Q-CONN-3P-10F) • IQ Cable Clip (ET-CLIP-100): Used to fasten cabling to the racking or to secure looped cabling. © 2023 Enphase Energy Inc. All rights reserved. June 2023 USM-00005-2.0... - Page 26 The multi-phase IQ Relay also provides phase coupling to allow microinverters on all phases to communicate with the IQ Gateway. Use a Legrand Phase Coupler (LPC-01) for multi-phase system for phase coupling if IQ Relay is not installed in the multi-phase system. © 2023 Enphase Energy Inc. All rights reserved. June 2023 USM-00005-2.0...
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Page 27: Technical Data
In evaluating the amount of bifacial gain, follow the recommendations of the module manufacturers. Anti-islanding IQ8 Series Microinverters complies to anti-islanding requirements as per AS4777.2 and the method used is VAR injection with frequency bias. PQ capability curve ©... -
Page 28: Specifications
Installer should not exceed the small-scale technology certificate (STC) limit on PV module wattage for claiming the STC. Maximum short circuit current for modules (Isc) allowed to be paired with IQ8 Series Microinverters: 20 A (calculated with 1.25 safety factor as per IEC 62548) Nominal voltage range can be extended beyond nominal if required by the electricity network operator. - Page 29 Power line communication (PLC) Limits may vary. Refer to local requirements to define the number of microinverters per branch in your area. Minimum two IQ8 Series Microinverters shall be required in the system. © 2023 Enphase Energy Inc. All rights reserved.
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Page 30: Iq8Hc-72-M-Int Microinverter Specifications
Installer should not exceed small-scale technology certificate (STC) limit on PV module wattage for claiming the STC. Maximum short circuit current for modules (Isc) allowed to be paired with IQ8 Series Microinverters: 20 A (calculated with 1.25 safety factor as per IEC 62548). - Page 31 Enphase Installer Platform and Enphase App Monitoring monitoring options. Both options require an IQ Gateway Communication Power line communication (PLC) Minimum two IQ8 Series Microinverters shall be required in the system. © 2023 Enphase Energy Inc. All rights reserved. June 2023 USM-00005-2.0...
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Page 32: Enphase Installation Map
IQ8AC/IQ8HC Installation and Operation Manual Enphase installation map © 2023 Enphase Energy Inc. All rights reserved. June 2023 USM-00005-2.0... -
Page 35: Revision History
Included IQ8 Series Microinverter's anti-islanding method. © 2023 Enphase Energy. All rights reserved. Enphase, the e and CC logos, IQ, and certain other marks listed at https://enphase.com/trademark-usage-guidelines are trademarks of Enphase Energy, Inc. in the US and other countries. Data subject to change.