AC Battery Installation
© 2016 Enphase Energy Inc.
141-00036 Rev 01
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Relocate the Envoy
When possible, locate the Envoy-S within 65 feet or 20 meters (electrically) from the AC Batteries. This may
not always be practical since the Envoy-S must also be connected to the production and consumption CTs
that are installed around the main service
and solar production circuits. If so, you can extend the CT leads as
described in the
Envoy-S Installation and Operation Manual
. In addition, the solar circuit may need to be
rerouted to a location closer to the AC Batteries. One solution is to install the AC Battery, the solar
production circuits and the Envoy-S Metered off a common subpanel.
Check that Meters are Properly Configured
If the consumption and production metering are not configured and operating properly, the AC Battery will
not operate or will operate improperly. The Envoy-S Metered uses the consumption and production meter
readings to determine if the AC Battery should be charging or discharging. Confirm in Installer Toolkit that
the consumption and production metering are both
Enabled
. A check next to both production and
consumption metering verifies that the metering is enabled. Additional checks include:
a.
To check that the consumption meter is installed correctly, shut off both the solar production and AC
Battery circuits. The consumption meter reading should closely match the utility meter’s reported
power reading.
b.
If the consumption meter is installed and operating correctly, turn on the solar production circuits,
but leave the AC Battery circuit(s) off. The solar production reading should be positive.
c.
Turn on the AC Battery circuit(s). Note that the consumption readings are impacted by the battery
operation. AC Battery charging increases the consumption reading. Since a portion of the PV
production is used to charge the batteries, the home’s consumption will appear to increase during
charging. When the batteries are discharging, the consumption metering reports the load
consumption lower than actual.
If any of these checks show incorrect results, check the Envoy-S and CT wiring against the appropriate wiring
diagram in the
Envoy-S Installation and Operation Manual
Check that the Grid Profile and Rate Tariff are Set
Check that the
Grid Profile
has been set in Installer Toolkit. If needed, set the
Peak Start Time
and the
Time
of Use
rate tariff in Installer Toolkit to control the time of day that the batteries begin to discharge to feed
loads.
Battery LED is Off or Flashing Red
If the AC Battery is not working correctly, perform the following steps. If the issue persists, contact Enphase
Customer Support at
enphase.com/en-us/support/contact
.
If the AC Battery LED is off, turn off the breaker for the branch circuit, wait for at least one minute,
and turn it back on.
During a brownout or blackout, the AC Battery powers down automatically. This is normal. When
power is restored, it automatically starts up again.
