Replacing An Envoy-S - enphase ENV-S-WM230 Installation And Operation Manual

Replacing an Envoy-S

If problems remain after following the troubleshooting steps above, contact Enphase at
enphase.com/global/support-request.
DANGER! Risk of electric shock. Risk of fire. Do not attempt to repair the Envoy-S; it
contains no user-serviceable parts. Tampering with or opening the Envoy-S will void the
warranty. If the Envoy-S fails, contact Enphase Customer Support for assistance
(enphase.com/global/support-request).
Warranty void if cover removed.

 Refer servicing to qualified personnel.
If Enphase Customer Support authorises an Envoy-S replacement (RMA), perform the following steps.
DANGER! Risk of electrocution! CTs must be installed with no current flowing in the
sensed circuit. Always install CT wires in the terminal blocks before energising the
sensed circuit. Do not disconnect the CT leads from the terminal block while the sensed
circuit is energised.
DANGER! Risk of electric shock. Be aware that installation of this equipment includes
risk of electric shock. If you wire the Envoy-S at the sub-board, always de-energise the
sub-board before servicing.
1. Turn off the circuit breaker supplying Envoy-S.
2. Disconnect the all active wires and Neutral wires from the old Envoy.
3. Disconnect the Ethernet and USB cables (if used).
4. Turn off the circuit breaker supplying the PV system.
5. Unlatch the split-core of the production CT(s) (if used) before disconnecting, and remove the
CT(s) from the sensed wires.
6. Unlatch the split-core of the consumption CT(s) (if used) before disconnecting. Once the
CT(s) are unlatched, remove it from the sensed wires.
7. Remove the Envoy-S by unlatching it from the DIN rail.
8. When the replacement Envoy-S arrives, install the Envoy-S and provide power as described in
"2. Provide a Power Connection" on page 13.
9. Install the new production CT and consumption CT (if used) as described in "3. Install CTs
for Metering" on page 14.
10. Verify that the new Envoy-S powers up.
BEST PRACTICE: When powered up and connected for the first time, the Envoy-S may
retrieve an automatic upgrade from Enphase. This upgrade may take up to 15 minutes.
During upgrade the Envoy-S LEDs flash green sequentially.
WARNING! Risk of Equipment Damage. Do not remove power from the Envoy-S if the
Envoy-S LEDs are flashing green sequentially. This indicates that a software upgrade is
in progress.
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Envoy-S Metered Multiphase Installation and Operation
© 2016 Enphase Energy Inc. 141-00035 Rev 01