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INSTALLATION
1
Position the Enphase Q Cable
A ) Plan each cable segment to allow connectors on the Enphase Q 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.
2
Install an Enphase Q Aggregator or Junction Box
A ) Verify that AC voltage at the site is within range:
Service Type and Voltage: L1-L2
240 V Split-Phase
211 to 264 VAC
208 V Single Phase
183 to 229 VAC
B ) Install an Enphase Q Aggregator or junction box at a suitable location on
the racking. See Enphase Q Aggregator Quick Install Guide.
C ) Provide an AC connection from the Enphase Q Aggregator or junction
box back to the electricity network connection using equipment and
practices as required by local jurisdictions.
3
Mount the Microinverters
A ) Mount the microinverter bracket side up (as shown) and under the
PV module, away from rain and sun. Allow a minimum of 1.9 cm
(0.75 inches) between the roof and the microinverter. Also allow 1.3
cm (0.50 inches) between the back of the PV module and the top of
the microinverter.
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 mounting fasteners as follows. Do not over torque.
• 6 mm (1/4 inches) mounting hardware: 5 N m (45 to 50 in-lbs)
• 8 mm (5/16 inches) mounting hardware: 9 N m (80 to 85 in-lbs)
• When using UL 2703 mounting hardware, use the manufacturer's
recommended torque value
DC connector
AC connector
WARNINGS:
4
Create an Installation Map
Create a paper installation map to record microinverter serial numbers
and position in the array.
A ) Peel the removable serial number label from each microinverter
and affix it to the respective location on the paper installation map.
B ) Peel the label from the IQ Envoy and affix it to the installation map.
C ) Always keep a copy of the installation map for your records.
5
Manage the Cabling
A ) Use cable clips or tie wraps to attach the
cable to the racking. The cable must be
supported at least every 1.8 m (6 feet).
B ) Dress any excess cabling in loops so
that it does not contact the roof. Do not
form loops smaller than 12 cm (4.75
inches) in diameter.
6
Connect the Microinverters
A ) Connect the microinverter. Listen for a click as the connectors
engage.
B ) Cover any unused connectors with Enphase
Sealing Caps. Listen for a click as the connectors engage.
WARNING: Install sealing caps on all unused AC connectors as
these connectors become live when the system is energized.
Sealing caps are required for protection against moisture ingress.
To remove a sealing cap or AC connector, you must use an Enphase
disconnect tool.
Affix serial number labels
Cable clip
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