Install A Replacement Microinverter - enphase IQ8 Installation And Operation Manual

Install a Replacement Microinverter

A. When the replacement microinverter is available, verify that the AC branch circuit breaker is de-energized.
B. Mount the microinverter horizontally bracket side up or vertically
•
Always place the microinverter under the PV module, protected from direct exposure to rain, sun, and
other harmful weather events. Allow a minimum of 1.9cm (3/4") between the roof and the
microinverter. Also allow 1.3 cm (1/2") between the back of the PV module and the top of the
microinverter.
• For vertical mount, also maintain > 30 cm (12") clearance from the edges of the PV module to protect
the microinverter from direct exposure to rain, UV, and other harmful weather events
WARNING: Risk of equipment damage. Mount the microinverter under the PV module.
•
Install the microinverter under the PV module to avoid direct exposure to rain, UV, and other harmful
weather events.
•
Always install the microinverter bracket side up.
•
Do not mount the microinverter upside down.
•
Do not expose the AC or DC connectors (on the Enphase IQ 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.
• 6 mm (1/4") mounting hardware: 5 N m (45 to 50 in-lbs.)
• 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
D. If you are using bonding hardware, the old bonding hardware should be discarded, and new bonding hardware
must be used when installing the replacement microinverter.
E. Connect the microinverter to the IQ Cable connector. Listen for a click as connectors engage.
F. Connect the DC leads of each PV module to the DC input connector of the microinverter.
G. Re-mount the PV module above the microinverter.
H. Energize the AC branch circuit breaker and verify operation of the replacement microinverter by checking the
Status LED on the connector side of the microinverter.
I. Use the Enphase Installer App to delete the old microinverter serial number from the Enphase IQ Gateway
database. In Enphase Installer App, once connected to the IQ Gateway:
a. Tap Micros > Manage.
b. Tap the checkbox
c. Tap
J. Add the new microinverter serial number to the Gateway database by initiating a device scan using one of the
following methods:
a. Method 1: Initiate a scan using the Enphase Installer App
• In Enphase Installer App, once connected to the IQ Gateway, navigate to the Overview
• From the Overview screen, tap Detected > Start Device Scan to start a new 30- minute
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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation
to the right of the microinverter serial number that you replaced.
to delete the microinverter from the IQ Gateway database
screen.
device scan.
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Mar 2022