enphase ENV-S-AM1-120 Installing Manual

QUICK INSTALL GUIDE

(Model ENV-S-AM1-120)

Installing the Enphase Envoy-S Metered

To install the Enphase® Envoy-S Standard, read and follow all warnings and instructions in this Guide and in the Enphase® Envoy-S
Installation and Operation Manual at: http://www.enphase.com/support. Safety warnings are listed on the back of this guide.

PREPARATION

How It Works

Enlighten

Microinverters

Envoy-S

Load
Center

POWER LINE
COMMUNICATIONS

Router

NETWORK

COMMUNICATIONS

To Internet

Envoy-S Display and Controls

Track system installation progress with the Enphase Installer Toolkit mobile app.
The LEDs on the Envoy-S are solid green when a function is enabled or performing
as expected, ashing when an operation is in progress, or solid amber when
troubleshooting with Installer Toolkit is required. For a legend of all LED states,
see Troubleshootinga.

Network Communications LED

Green when Envoy-S is connected
to Enlighten.

A ) Download the Enphase Installer Toolkit mobile app and

open it to log in to your Enlighten account. With this app,
you can connect to the Envoy-S to track system installation
progress. To download, go to http://enphase.com/toolkit or
scan the QR code at right.

B ) Check the box for the following items:

•

Enphase Envoy-S Metered

•

Production metering current transformer (CT)

•

Length of DIN rail for mounting

•

Ferrite bead to attach to your Ethernet Cable, if used

C ) You must install the Envoy-S Metered in a non-metallic, NRTL Certied

NEMA type 3R (or better) enclosure with conduit attachment. Do not
drill holes on the top of the enclosure or anywhere that allows moisture
ingress.

D ) Make sure you have the following optional items, if needed:

•

Two (2) consumption metering split-core CTs (order CT-200-SPLIT)

•

Enphase Mobile Connect modem (order CELLMODEM-01)

•

Ethernet over power line communication (PLC) bridge with Ethernet
cables (order EPLC-01)

•

Ethernet cable (802.3, Cat5E or Cat6, unshielded). Do not use shielded
twisted pair (STP) cable.

E ) Decide how to connect the Envoy-S to the Internet: Wi-Fi, an Enphase

Mobile Connect modem, or Ethernet.

F ) Install the PV modules and microinverters as directed by the installation

manuals.

G ) Create a paper installation map to record microinverter serial numbers

and positions in the array.

•

Peel the removable serial number label from each microinverter and

afx it to the respective location on the paper installation map.

•

Peel the removable label from the bottom of the Envoy-S and afx it to

the paper installation map.

•

Always keep a copy of the installation map for your records and to
upload to Enlighten later.

AP Mode LED

Green when Envoy’s AP Wi-Fi network
is available.

AP Mode Button

Press to enable Envoy’s AP Mode
for connecting with a mobile device.
Hold for 5 seconds to start WPS
connection to a router.

Power Production LED

Green when microinverters are
producing power.

Microinverter Communications LED

Green when microinverters are
communicating with Envoy-S.

Device Scan Button

Press to start/stop 15 minute scan for
microinverters over the power line.

Enphase Installer

Toolkit mobile app

Note: If needed, you can nd an installation map at the back of any

Enphase Microinverter Quick Install Guide.

INSTALLATION

1

Choose a location for the Envoy-S

A ) Find a spot near the main load center or PCC (point of common cou-

pling).

B ) Install the Envoy-S inside a non-metallic, NRTL Certied NEMA type 3R

(or better) enclosure with conduit attachment.

C ) Mount the Envoy horizontally using the included DIN rail.

2

Wire the Envoy-S for Power and Metering

The Envoy-S uses terminal blocks for power and metering connections. One solid-core current transformer (CT) is provided for revenue grade production
metering. Two optional split-core CTs can be used to provide consumption metering. You must create a protected route using conduit for the CT wires from the main
load center to the Envoy-S. If you need to extend the wires, refer to the Enphase Envoy-S Installation and Operation Manual at: http://www.enphase.com/support.

Note: Because of variance in load center design and main power feed, there may not always be enough space to install consumption metering CTs.

A ) Wire the Envoy-S for power

•

Use a 15 A maximum circuit breaker for the supply wir­ing.

•

Make sure supply wiring is 14 AWG copper rated at 75
degrees C or better

•

Locate the screw on the left side of the terminal block
door, and loosen it with a screwdriver to unlock the door.

•

Flip open the terminal block door and wire the line and

Production

CT

Load Center

Envoy-S Terminal Block

ABN

CU, 14 AWG, 75C
MEAS CAT III
OVC III

Production Consumption

IA●IAIB●IBIC●ICIA●IAIB●IBIC●

C

IC

Digital Input

1 2 3 4

CMN

REF CMN

neutral conductors as shown. (Connect Line 1 to A, Line 2
to B, and Neutral to N.) Tighten to 5 in-lbs.

From PV System

B ) Install the CT for production metering

•

Use only the CT that came with the Envoy-S. It is marked
with the same serial number as the Envoy-S.

•

Locate the arrow on the CT label.

•

Connect the white wire to the “IA•” terminal. Tighten to 5
in-lbs.

•

Connect the blue wire to the “IB•” terminal. Tighten to 5
in-lbs.

•

Clamp the CT on Line 1 (matching Envoy’s “A” voltage
terminal) of the solar production circuit with the arrow
pointing towards the load (away from the solar array).

C ) Install CTs for consumption metering (optional)

•

Make sure that the main load center wires are de-energized until you

Consumption

CTs

L2: red

L1: black

To Grid

N: white

white

(See last page for enlargement of this diagram)

blue

white

blue

blue

white

DANGER!

Risk of electric
shock. Always
de-energize
the load center
before beginning
wiring.

have secured the CT wires in the terminal blocks.

•

Before running the CT wires through the conduit, use colored tape to
mark one of the CTs and the free end of its wires.

•

For the marked CT wires, connect the white wire to “IA•” and the blue
wire to “IA”.

•

For the unmarked CT wires, connect the white wire to “IB•” and the

DANGER! Risk of electrocution! Do not install CTs when current

is owing in the sensed circuit. Do not energize the sensed

circuit until the CT wires are installed in the terminal block.

blue wire to “IB”.

•

Tighten all connections to 5 in-lbs.

•

Clamp the marked CT on the load center feed wire Line 1 (matching
the Envoy’s “A” voltage terminal) with the CT arrow pointing toward
the load (away from the grid).

•

Clamp the unmarked CT on the load center feed wire Line 2 (match­ing the Envoy’s “B” voltage terminal) with the CT arrow pointing

Note: When installing CTs, it is important to match CT and sense volt-
age phases. Be sure to consistently identify the two AC lines at three
points: the main load center feed, the Envoy, and the solar production
circuit breaker. Wire colors (typically black and red) may not always
consistently identify conductors. If in doubt, use a multimeter to check.

toward the load (away from the grid).

5

Relay

NO

PD, B300

OVC II

C

3

Energize the Envoy-S

A ) Close the terminal block door, and secure it with the screw.

B ) Turn on the circuit feeding the Envoy-S.

C ) All four LEDs ash amber during boot up (approximately 3 minutes).

When boot up is complete, the Microinverter Communications LED
lights solid amber, indicating that microinverters are not yet detected.

4

Detect Microinverters

Use one of the following methods to detect microinverters.

Method A // Provision microinverters with Installer Toolkit

Use the Installer Toolkit mobile app to congure the Envoy-S with the serial

numbers of the installed microinverters.

A ) Launch Installer Toolkit and tap View Systems.

B ) Select the system you are working with, or tap [+] to add a system.

C ) Connect to the Envoy-S with your mobile device as described in the

note on top of the next page.

D ) Return to Installer Toolkit. If the serial number for the Envoy-S you are

installing is not displayed on the System Overview screen, tap the [+]
next to the word “Envoys”. When the app displays the serial number of
the Envoy-S, tap it to add it to the system.

E ) Create the arrays and scan the serial numbers from the installation

map as instructed by the Installer Toolkit Operation Manual
at http://www.enphase.com/support.

F ) Tap the Connect button. This provisions the scanned microinverters on

the Envoy-S.

G ) When prompted, conrm the number of microinverters that you in-

stalled.

The Microinverter Communications LED lights solid green if all of the pro­visioned devices are communicating or solid amber if any devices are not
communicating.

Method B // Discover microinverters with Installer Toolkit

Use the Installer Toolkit mobile app to set the number of microinverters the
Envoy-S should search for on the power line.

A ) Connect to the Envoy-S with your mobile device as described in the

note on top of the next page.

B ) Launch Installer Toolkit and tap Connect to an Envoy.

C ) When prompted, enter the number of microinverters that you installed.

D ) When prompted to start a device scan, tap OK.

The Microinverter Communications LED ashes green while scanning. It

lights solid green when all of the microinverters you installed are communi­cating or solid amber if any devices are not communicating.