Install A Replacement Microinverter - enphase IQ7 Installation And Operation Manual

4.4 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 bracket side up and under the PV module, away from rain and
sun. 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, 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, discard the old bonding hardware and use a new
bonding hardware when installing the replacement microinverter.
E. Connect the microinverter to the 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.
I. Use the Enphase Installer App to delete the old microinverter serial number from the IQ
Gateway database. In the Enphase Installer App, once connected to the IQ Gateway:
a. Tap Microinverters > Manage.
b. Tap the checkbox
c. Tap
J. Add the new microinverter serial number to the IQ 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 the Enphase Installer App, once connected to the IQ Gateway, navigate to the
Overview screen.
•
From the Overview screen, tap Detected > Start Device Scan to start a new 30-
minute device scan.
•
If device scanning on the IQ Gateway is inhibited, the app displays Scan
Inhibited. If you need to add more microinverters to the system when device
scanning is inhibited on the IQ Gateway, you must use the Enphase Installer App
scanning tool to provision them on the IQ Gateway, rather than using the IQ
Gateway's device scanning function to discover them. If this is not possible and
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IQ7/IQ7+/IQ7X/IQ7A Microinverters Installation and Operation Manual
to the right of the microinverter serial number replaced.
to delete the microinverter from the IQ Gateway database.
© 2023 Enphase Energy Inc. All rights reserved. September 2023
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