Install Manual

Envoy-S Installation and Operation
 2015 Enphase Energy Inc. 141-00027 Rev 01
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 Check that the circuit breaker(s) for the PV array are in the “ON” position. For the Envoy to
communicate with the microinverters, the PV circuit breakers must be in the “ON” position in the
electrical load center.
 Verify that the PV modules are connected to the microinverters.
Is the Envoy well located? The Envoy must be near the primary load center or the array's
downstream subpanel. If installing the Envoy-S Standard:
 Make sure the Envoy is not plugged into an outlet strip or surge protector.
 Plug the Envoy into an outlet closer to the main load center or subpanel.
 Unplug other devices from the AC outlet used for the Envoy.
 As an alternative if signal strength is poor, power the Envoy from the solar production circuit
(where local electrical code allows for monitoring equipment on the same circuit). This provides
the best possible power line communications. The Envoy must be located indoors (a garage,
attic, basement, or other cool, dry location) or in an NRTL-certified, NEMA type 3R enclosure.
Remember that the Envoy must also have an Internet connection.
Is the system energized? PV modules power microinverters, PV modules provide power only
during daylight hours, and microinverters communicate only when powered.
 Run another scan during daylight hours.
 Check that the circuit breaker(s) for the PV array are in the “ON” position. For the Envoy to
communicate with the microinverters, the PV circuit breakers must be in the “ON” position in the
electrical load center.
 Verify that the PV modules are connected to the microinverters.
Is there a phase imbalance?
 Ask the electrician to measure the conductors and neutral line to verify that the phases are
balanced. If the phases are not balanced, electricians must recheck the wiring.
Is the Envoy-S plugged into a circuit on the primary load center while the PV circuit breakers
are on a downstream subpanel? The primary load center is full and doesn’t have additional
capacity to add circuit breakers.
 Add a subpanel with a small subset of circuit breakers
 Hard wire the Envoy-S into that subpanel, so that it can be close to the PV circuit breaker.
Issue: Installer Toolkit Indicates that Scanning is Inhibited
This state occurs after an installer has used the Installer's Toolkit to provision the Envoy. It is best to leave
the Envoy in this condition for normal operation. If you need to re-enable scanning (for example, if you
replace a microinverter) contact Enphase Customer Support ([e-mail]).
Power Production Issues
Issue: Power Production LED is solid amber
The Power Production LED is solid green when all microinverters are producing, flashes green when a
microinverter upgrade is in progress, flashes amber when microinverters are not yet detected, or becomes
solid amber when any microinverter that is expected to produce is not. Check in Installer Toolkit to see which
microinverters are affected.
 If none of the microinverters are producing power, there may be a grid or wiring issue. First,
verify that there is proper input voltage and frequency from the utility. Next, check the breaker
and wiring, starting at the load center.