IQ8MC/IQ8AC/IQ8HC Microinverters Installation and Operation Manual
22 © 2023 Enphase Energy Inc. All rights reserved. October 2023
USM-00008-1.0
o IQ Gateway, a communications gateway that can communicate with IQ8 Series Microinverters, IQ
Batteries, and the IQ System Controller smart switch. It collects system performance information and
transmits that information over the internet to Enphase Cloud. An IQ Gateway is required for Enphase
Energy Systems with IQ Series Microinverters. The IQ Gateway is included in an IQ Combiner.
o IQ Combiner consolidates interconnection equipment into a single enclosure and streamlines PV and
storage installations by providing a consistent, pre-wired solution for residential applications. It includes
the IQ Gateway. Install the new communication kit in any IQ Combiner to enable wireless communication
with the IQ Battery and IQ System Controller.
Enphase Energy System PV solar grid-tied
For grid-tied mode, after the IQ8 PV Microinverter installation, energize the system:
A. Turn ON the AC disconnect or circuit breaker for the branch circuit.
B. Turn ON the main utility-grid AC circuit breaker. Your system starts producing power after a five-minute
wait time.
C. Check the LED on the connector side of the microinverter.
LED color Indicates
Flashing green
Normal operation. AC grid function is normal, and there is communication with the IQ
Gateway
Flashing orange The AC grid is normal, but there is no communication with the IQ Gateway
Flashing red The AC grid is either not present or not within the specification
Solid red
There is an active “DC Resistance Low, Power Off Condition.” To
reset, see “DC Resistance Low – Power Off Condition” on page 25.
To install the IQ Gateway and set up system monitoring and grid management functions, refer to the IQ Gateway Quick
Install Guide.
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