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Step 9: Complete the Installation Map
The Enphase Installation Map is a diagrammatic representation of the physical location of each
microinverter in your PV installation. You will create the virtual array in Enlighten from this map. Use the
blank map on page 32 to record microinverter placement for the system, or provide your own layout if a
larger or more intricate installation map is required.
You can build the system map manually, by peeling the serial number labels from the microinverters and
placing the labels on the installation map, or you can use the ArrayGun feature from the Enphase Installer
Toolkit to easily build and configure a system. Refer to
information.
To manually build the Installation Map:
a. Each Enphase Microinverter has a removable serial number label located on the mounting
plate. Peel the removable serial number label from each Enphase Microinverter and affix it to
the respective location on the Enphase installation map (see map on page 32). Remember to
keep a copy of the installation map for your records.
b. Draw a top-down view of the array using the Array Map template. Make sure to leave enough
room to place the serial number stickers.
c. When installing the microinverters, remove the serial number labels located next to the DC
input cables and place them in the correct order on your drawing of the system. Remember to
keep a copy of the installation map for your records.
Step 10: Connect the PV Modules
WARNING: Electrical shock hazard. The DC conductors of this photovoltaic system are
ungrounded and may be energized.
WARNING: The M250 can be paired only with a 60-cell PV module. The PV module DC
conductors must be labeled "PV Wire" or "PV Cable" to be compliant with NEC 690.35(D)
for Ungrounded PV Power Systems.
NOTE: Completely install all microinverters and all
system AC connections prior to installing the PV
modules.
NOTE: The status LED on the underside of each
M250 lights green six seconds after DC power is
applied. It remains lit solid for two minutes, followed
by six green blinks. After that, red blinks indicate that
no grid is present. This is because the system is not
yet energized.
To connect the modules:
a. Mount compatible PV modules above the microinverters.
b. Mate the microinverters and PV modules as required.
Repeat for all remaining PV modules using one
microinverter for each PV module.
18
http://enphase.com/products/arraygun/
2013 Enphase Energy Inc.
M250 Installation and Operation
for more
141-00022 Rev 01
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