Step 4 - Attach The Microinverters To The Pv Racking - Enphase Energy M215 Manuel D'installation Et D'utilisation

Step 4 – Attach the Microinverters to the PV Racking
a. Mark the approximate centers of each PV module on the PV racking.
b. Evaluate the location of the
microinverter with respect to the PV
module DC junction box or any other
obstructions.
c. Ensure that the microinverter does not
interfere with the PV module frames or
stiffening brace.
d. Ensure that the connector from the
microinverter can easily reach the
connector on the Engage Cable.
WARNING: Do NOT exceed the maximum number of microinverters in an
AC branch circuit as listed on page 25 of this manual. You must protect
each microinverter AC branch circuit with a 20A maximum breaker.
WARNING: Allow a minimum of 1.9 cm (0.75 inches) between the roof
and the bottom of the microinverter. Also allow 1.3 cm (0.50 inches)
between the back of the PV module and the top of the microinverter. Do
not mount the microinverter in a location that allows long-term exposure
to direct sunlight (i.e., it should be covered by the PV module).
e. If you are using an earthing electrode conductor to earth the
microinverter chassis, attach the earthing electrode conductor to the
microinverter earthing screw. Torque the microinverter fasteners to
the values below.
•
•
NOTE: Using a power screwdriver to tighten the earthing clamp screw is
not recommended due to the risk of thread galling.
NOTE: The AC output neutral is not bonded to earth inside the
microinverter.
f. With the silver side of the microinverter facing up and the black
side facing down, mount one microinverter at each of these locations
using suitable hardware. The indicator light on the underside of the
microinverter will be facing the roof.
Page 13
6 mm (1/4") mounting hardware – 5 N m (45 in-lbs) minimum
8 mm (5/16") mounting hardware – 9 N m (80 in-lbs) minimum
Copyright Enphase Energy Inc. 2011
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141-00017, Rev 01