IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation
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© 2022 Enphase Energy Inc. All rights reserved.
Mar 2022
Step 1: Position the Enphase IQ Cable
A. Plan each cable segment to allow drop connectors on the Enphase IQ Cable to align with each PV module.
Allow extra length for slack, cable turns, and any obstructions.
B. Mark the approximate centers of each PV module on the PV racking.
C. Lay out the cabling along the installed racking for the AC branch circuit.
D. Cut each segment of cable to meet your planned needs.
WARNING
: When transitioning between rows, secure the cable to the rail to prevent cable damage or
connector damage. Do not count on connector to withstand tension.
Step 2: Position the Junction Box
A.
Verify that AC voltage at the site is within range.
NOTE:
All 208 VAC installations require that you use the Enphase IQ Gateway to commission the Enphase
Microinverters to propagate correct grid profile settings for 208 VAC trip points.
B. Install a junction box at a suitable location on the racking.
C. Provide an AC connection from the junction box back to the electricity network using equipment and practices
as required by local jurisdictions.
Step 3: Mount the Microinverters
A. 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
: Install the microinverter under the PV module to avoid direct exposure to rain, UV, and other
harmful weather events. Do not mount the microinverter upside down.
B. Torque the microinverter fasteners as follows. Do not over torque.
•
6 mm (¼”) 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
Service Type and Voltage: L1-L2
240 VAC Split-Phase
211 to 264 VAC
208 VAC Single-Phase
183 to 229 VAC