enphase IQ8AC Installation And Operation Manual
Microinverters
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Summary of Contents for enphase IQ8AC
- Page 1 INSTALLATION AND OPERATION MANUAL - UK Enphase IQ8MC, IQ8AC, and IQ8HC Microinverters © 2023 Enphase Energy Inc. All rights reserved. September 2023 IOM-00029-1.0...
- Page 2 The full text of the EU declaration of conformity (DoC) is available at the following internet address https:/ /enphase.com/en-gb/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
Status LED indications and error reporting ................... 20 Troubleshoot an inoperable microinverter ..................21 Disconnect a microinverter ......................22 Install a replacement microinverter ....................22 Enphase IQ Cable planning and ordering ..................23 Enphase IQ Cable accessories ......................24 Technical data ............................. 25 Technical considerations ........................25 Bifacial modules .......................... -
Page 4: Important Safety Information
This manual contains important instructions for use during the installation and maintenance of the IQ8 Series Microinverters. IMPORTANT: Enphase IQ8 Series Microinverters listed in this manual require the IQ Cable. An IQ Gateway is required to monitor the performance and, where required, provide control of the IQ8 Series Microinverters. -
Page 5: Iq8 Series Microinverters Safety Instruction
20 A (single-phase and multi-phase) maximum breaker or fuse, as appropriate. Do not use Enphase equipment in a manner not specified by the manufacturer. DANGER: Risk Doing so may cause death or injury to persons or damage to equipment. - Page 6 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.
- Page 7 • 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. September 2023 IOM-00029-1.0...
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Page 8: The Enphase Energy System
IQ8 Series Microinverters over on-site AC power lines and transmits the data to Enphase App through a broadband or cellular connection. The IQ Gateway can monitor up to 300 IQ8 Series Microinverters and up to 12 IQ Battery 5P units. For... - Page 9 (149°F). Ease of design PV systems using Enphase microinverters are very simple to design and install. You will not need to perform cumbersome string sizing calculations like conventional string inverters. You can install individual PV modules in any combination of PV module quantity, type, age, and orientation. Each microinverter quickly mounts on the PV racking directly beneath each PV module.
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Page 10: Planning For Microinverter Installation
IMPORTANT: The IQ8 Series Microinverters include both AC and DC connectors integrated into the bulkhead. The AC port connects to IQ Cable or Enphase Field Wireable Connector. The DC port has been evaluated by TUV for intermatability with Stäubli made MC4 connectors, whose cable coupler models are "PV-KST4/…-UR, PV-KBT4/…-UR, PV-KBT4-EVO2/…-UR, and PV-KST4-EVO2/…-UR". - Page 11 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% for the sections from the microinverter AC branch circuit to the circuit breaker in the electrical panel.
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Page 12: Parts And Tools Required
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. To download, go to https:/ /enphase.com/en-gb/installers/apps... -
Page 13: Enphase Microinverters Installation
Step 7: Terminate the unused end of the IQ Cable Step 8: Complete the installation of the junction box Step 9: Connect the PV modules Step 10: Energize the system Horizontal mount Vertical mount © 2023 Enphase Energy Inc. All rights reserved. September 2023 IOM-00029-1.0... -
Page 14: Step 1: Position The Iq Cable
Do not mount the microinverter upside down. B. Torque the microinverter fasteners as follows. Do not over-torque. • 6 mm mounting hardware: 5 N m • 8 mm mounting hardware: 9 N m © 2023 Enphase Energy Inc. All rights reserved. September 2023 IOM-00029-1.0... -
Page 15: Step 4: Create An Installation Map
Horizontal mount >38 mm Vertical mount 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 to record microinverter placement for the system or provide your own layout if you require a larger or more intricate installation map. -
Page 16: Step 5: Manage The Cabling
IQ8MC/IQ8AC/IQ8HC Installation and Operation Manual For details, refer to Detect the Microinverters in the help topics of the Enphase Installer App. A. Peel the removable serial number label from each microinverter and affix it to the respective location on the paper installation map. -
Page 17: Step 7: Terminate The Unused End Of The Iq Cable
NOTE: Turn only the hex nut to prevent conductors from twisting out of the separator. WARNING: The IQ Terminator cannot be re-used. If you unscrew the nut, you must discard the IQ Terminator. © 2023 Enphase Energy Inc. All rights reserved. September 2023 IOM-00029-1.0... -
Page 18: 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. DC connectors C. Mount the PV modules above the microinverters. Status LED © 2023 Enphase Energy Inc. All rights reserved. September 2023 IOM-00029-1.0... -
Page 19: Step 10: Energize The System
You can set the grid profile through 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 Installation and Operation Manual at https:/ /enphase.com/en-gb/installers/resources/documentation... -
Page 20: Troubleshooting
Follow all the safety measures described in this manual. Competent personnel can use the following troubleshooting steps if the PV system does not operate correctly. WARNING: Risk of electric shock. Do not attempt to repair the Enphase microinverter; it contains no user-serviceable parts. If it fails, contact... -
Page 21: Troubleshoot An Inoperable Microinverter
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 22: Disconnect A Microinverter
L. Swap DC leads with a known good, adjacent PV module. If the problem moves to the adjacent module after periodically checking the Enphase Installer Platform (this may take up to 30 minutes), it indicates that the PV module is not functioning correctly. If it stays in place, the problem is with the original microinverter. -
Page 23: Enphase Iq Cable Planning And Ordering
G. Energize the AC branch circuit breaker and verify the operation of the replacement microinverter by checking the status LED on the connector side of the microinverter. H. Use the Enphase Installer App to retire the old microinverter serial number from the IQ Gateway database. In Enphase Installer App, once connected to the IQ Gateway: a. -
Page 24: Enphase Iq Cable Accessories
• Use a Legrand Phase Coupler (LPC-01) for a multi-phase system for phase coupling if IQ Relay is not installed in the multi-phase system. © 2023 Enphase Energy Inc. All rights reserved. September 2023 IOM-00029-1.0... -
Page 25: Technical Data
IQ8MC/IQ8AC/IQ8HC Installation and Operation Manual 6. Technical data 6.1 Technical considerations Be sure to apply the following when installing the Enphase IQ8 Series Microinverters 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 26: Specifications
) allowed to be paired with IQ8 Series Microinverters: 20 A (Calculated with 1.25 safety factor as per IEC 62548) The nominal voltage range can be extended beyond nominal if required by the electricity network operator. © 2023 Enphase Energy Inc. All rights reserved. September 2023 IOM-00029-1.0... - Page 27 Both options require an IQ Gateway Communication Power line communication (PLC) Limits may vary. Refer to local requirements to define the number of microinverters per branch in your area. © 2023 Enphase Energy Inc. All rights reserved. September 2023 IOM-00029-1.0...
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Page 28: Iq8Ac-72-M-Int Microinverter Specifications
The nominal voltage range can be extended beyond nominal if required by the electricity network operator. Limits may vary. Refer to local requirements to define the number of microinverters per branch in your area. © 2023 Enphase Energy Inc. All rights reserved. September 2023... - Page 29 (GFP) is integrated into the class II double- insulated microinverter Enphase Installer Platform and Enphase App Monitoring monitoring options. Both options require an IQ Gateway Communication Power line communication (PLC) © 2023 Enphase Energy Inc. All rights reserved. September 2023 IOM-00029-1.0...
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Page 30: Iq8Hc-72-M-Int Microinverter Specifications
The nominal voltage range can be extended beyond nominal if required by the electricity network operator. Limits may vary. Refer to local requirements to define the number of microinverters per branch in your area. © 2023 Enphase Energy Inc. All rights reserved. September 2023... - Page 31 (GFP) is integrated into the class II double- insulated microinverter. Enphase Installer Platform and Enphase App Monitoring monitoring options. Both options require an IQ Gateway Communication Power line communication (PLC) © 2023 Enphase Energy Inc. All rights reserved. September 2023 IOM-00029-1.0...
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Page 32: Enphase Installation Map
IQ8MC/IQ8AC/IQ8HC Installation and Operation Manual 7.4 Enphase installation map © 2023 Enphase Energy Inc. All rights reserved. September 2023 IOM-00029-1.0... -
Page 35: Revision History
IOM-00029-1.0 September 2023 Initial release © 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.