Install A Replacement Microinverter - enphase IQ8 Installation And Operation Manual

E. Disconnect the PV module DC wire connectors from the microinverter using the
IQ Disconnect Tool.
F. If present, loosen and/or remove any bonding hardware.
G. Remove the microinverter from the PV racking.
WARNING: Risk of electric shock. Risk of fire. Do not leave any connectors on the PV
system disconnected for an extended period. If you do not plan to replace the
microinverter immediately, you must cover any unused connector with a sealing cap.

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 1.9 cm (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 IQ Cable connection, PV module, or
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 the operation of the replacement
microinverter by checking the Status LED on the connector side of the microinverter.
29
Enphase IQ8, IQ8+, IQ8M, IQ8A, and IQ8H Microinverters
© 2024 Enphase Energy Inc. All rights reserved. January 2024
IOM-00068-1.0