enphase IQ Envoy User manual

INSTALLATION AND OPERATION MANUAL
141-00039, Rev 01
Enphase IQ Envoy

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
2
Contact Information
Enphase Energy Inc.
1420 N. McDowell Blvd.
Petaluma, CA 94954
enphase.com
enphase.com/en-us/support/contact
FCC Compliance
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, you are encouraged to try to correct the interference by one
or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by the party responsible for compliance may void the
user’s authority to operate the equipment.
Other Information
This Class B digital apparatus complies with Industry Canada ICES-003.
For third-party license information, refer to enphase.com/licenses.
For Enphase patent information, refer to enphase.com/company/patents/.
Product information is subject to change without notice. All trademarks are recognized as the property of
their respective owners.
For warranty text, refer to enphase.com/warranty.
User documentation is updated frequently; Check the Enphase website (enphase.com/support) for the latest
information.
Copyright © 2017 Enphase Energy Inc. All rights reserved.
Audience
This manual is intended for use by professional installation and maintenance personnel.

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
3
Table of Contents
SAFETY.................................................................................................................................................5!
Read this First......................................................................................................................................... 5!
Safety Instructions ................................................................................................................................. 5!
The Enphase IQ Envoy .........................................................................................................................6!
How the Enphase Microinverter System Works................................................................................... 6!
Installation Planning and Preparation ................................................................................................7!
Pre-installation Checks .......................................................................................................................... 8!
Plan the Power Connection .................................................................................................................................8!
Plan the Internet Connection...............................................................................................................................8!
Download the Installer Toolkit App.....................................................................................................................8!
Metering Considerations .....................................................................................................................................9!
Box Contents ........................................................................................................................................................9!
Required Items .....................................................................................................................................................9!
Optional Items ......................................................................................................................................................9!
System Capacity.................................................................................................................................................10!
Create the Map and Install the PV Modules and Microinverters ....................................................................10!
Installation Sequence...........................................................................................................................11!
Installing the IQ Envoy – Part 1.........................................................................................................12!
1. Choose a Location for the IQ Envoy................................................................................................12!
2. Provide a Power Connection ...........................................................................................................13!
3. Install CTs for Metering ...................................................................................................................14!
Install the CT for Production Metering .............................................................................................................15!
Install CTs for Consumption Metering (Optional)............................................................................................15!
Extend Consumption CT Leads, If Needed.......................................................................................................16!
4. Energize and Update the IQ Envoy ..................................................................................................16!
Installing the IQ Envoy – Part 2.........................................................................................................17!
5. Detect the Devices ...........................................................................................................................17!
Method A: Provision Devices with Installer Toolkit .........................................................................................17!
Method B: Discover Devices with Installer Toolkit...........................................................................................17!
Method C: Discover Devices with the IQ Envoy................................................................................................18!
With All Methods................................................................................................................................................18!
6. Verify Configuration and Enable the Meters ..................................................................................18!
7. Connect to Enlighten........................................................................................................................18!
Method A: Integrated Wi-Fi................................................................................................................................19!
Method B: Enphase Mobile Connect Modem...................................................................................................20!
Method C: Ethernet Cable..................................................................................................................................20!
Method D: Power Line Communication Bridges ..............................................................................................21!
If the Internet Connection Fails .........................................................................................................................21!
8. Send System Summary Report .......................................................................................................21!
9. Activate Monitoring..........................................................................................................................22!
Method A: If the IQ Envoy is Associated with a System in Installer Toolkit...................................................22!
Method B: If the IQ Envoy is NOT associated with a System in Installer Toolkit...........................................22!
View System Performance in Enlighten............................................................................................................22!
IQ Envoy Operation ............................................................................................................................23!
IQ Envoy Displays and Controls ..........................................................................................................23!
IQ Envoy LED States.............................................................................................................................23!
LED Behavior at Initial Start Up ...........................................................................................................24!

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
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Initial Communications Check ..........................................................................................................................24!
More about Device Communications States....................................................................................................24!
Initiate a New Scan for Microinverters ...............................................................................................24!
Connecting to IQ Envoy .....................................................................................................................25!
Connect Using the Installer Toolkit App .............................................................................................25!
Method A: Use the Site’s Wireless Router to Connect to the IQ Envoy...........................................................25!
Method B: Create a Wireless Access Point ......................................................................................................25!
Complete the Connection to IQ Envoy with Installer Toolkit...........................................................................26!
Connect Remotely Using Enlighten.....................................................................................................28!
Connect Using the IQ Envoy Local Interface ......................................................................................29!
View Production Readings ................................................................................................................................29!
View or Change Monitoring Settings ................................................................................................................30!
View Microinverter Information.........................................................................................................................33!
View Envoy Information.....................................................................................................................................33!
Open a Connection for Enphase Troubleshooting...........................................................................................33!
Troubleshooting.................................................................................................................................34!
Device Detection Issues ......................................................................................................................34!
Issue: Installer Toolkit Shows “Cross Domain Traffic Reported”....................................................................34!
Issue: Device Communications LED is Solid Amber........................................................................................34!
Issue: Installer Toolkit Detects Fewer Microinverters than Expected ............................................................34!
Issue: No Microinverters are Reporting ............................................................................................................35!
Issue: Installer Toolkit Indicates that Scanning is Inhibited............................................................................35!
Power Production Issues.....................................................................................................................35!
Issue: Power Production LED is solid amber ...................................................................................................35!
Internet Connection Issues..................................................................................................................36!
Issue: Network Communications LED is Amber or Off....................................................................................36!
Issue: Wi-Fi Problems ........................................................................................................................................37!
Issue: Cellular Modem Connection Status “Not Connected” ..........................................................................37!
Issue: IQ Envoy is not Connecting with a New Router .....................................................................................37!
Local Networking Considerations.......................................................................................................38!
DHCP versus Static IP Addressing ...................................................................................................................38!
MAC Filtering......................................................................................................................................................38!
Firewall Settings.................................................................................................................................................38!
Microinverter Issues ............................................................................................................................39!
Clear “DC Resistance Low - Power Off” Condition...........................................................................................39!
Clear “GFI Tripped” Condition............................................................................................................................40!
Replacing an IQ Envoy..........................................................................................................................42!
Technical Data ...................................................................................................................................44!

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
5
SAFETY
Read this First
Follow the instructions in this manual. These instructions are key to the installation and maintenance of the
Enphase IQ Envoy™.
To ensure the safe installation and operation of the IQ Envoy, note the following safety symbols that appear
throughout this document to indicate dangerous conditions and important safety instructions.
DANGER:
This indicates a hazardous situation, which if not avoided, will result in death or serious injury.
WARNING:
This indicates a situation where failure to follow instructions may be a safety hazard or cause
equipment malfunction. Use extreme caution and follow instructions carefully.
NOTE:
This indicates information that is very important for optimal system operation. Follow instructions
carefully.
Safety Instructions
DANGER:
Risk of
electrocution!
Do not install current transformers (CTs) when current is flowing in the sensed circuit. Always
install CT wires in the terminal blocks before energizing the sensed circuit.
DANGER:
Risk of electric
shock. Risk of
fire.
Do not attempt to repair the IQ Envoy; it contains no user-serviceable parts. Tampering with or
opening the IQ Envoy will void the warranty. If the IQ Envoy fails, contact Enphase Customer
Support for assistance at enphase.com/en-us/support/contact. Refer servicing to qualified
personnel.
Only qualified personnel should troubleshoot, install, or replace the IQ Envoy.
Do not wire unused terminals or terminal blocks on the IQ Envoy.
DANGER:
Risk of electric
shock.
Do not use Enphase equipment in a manner not specified by the manufacturer. Doing so may
cause death or injury to persons, or damage to equipment.
Always open or disconnect circuit from power-distribution system (or service) of building before
installing or servicing current transformers (CTs).
WARNINGS:
Before installing or using the IQ Envoy, read all instructions and cautionary markings in the
technical description and on the IQ Envoy.
Risk of equipment damage. When installing the IQ Envoy in an enclosure, choose area for
installation where ambient temperature does not exceed 46º C (115º F).
NOTES:
Do not install the CTs in a panel where they exceed 75% of the wiring space of any cross-sectional
area within the panel, or refer to local standards for guidance.
Do not install CTs in an area where they will block ventilation openings, or in area of breaker arc
venting.
The CTs are not suitable for Class 2 wiring methods and not intended for connection to Class 2
equipment.
Secure CT and route conductors so that they do not directly contact live terminals or bus.
Perform all electrical installations in accordance with all national and local electrical codes.
To ensure optimal reliability and to meet warranty requirements, the Enphase IQ Envoy must be
installed according to the instructions in this manual.

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
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The Enphase IQ Envoy
The Enphase IQ Envoy is an integral component of the Enphase Home Energy Solution. It operates between
the Enphase devices, or other PV system, and the Enphase Enlighten™ web-based monitoring and analysis
software. When used with Enphase devices, the IQ Envoy can control grid management functions and
monitor PV production and site consumption. When used with non-Enphase PV systems, it can collect
production and consumption data, but does not control grid management functions.
IMPORTANT: Enphase IQ Envoy and IQ 6 and IQ 6+ Micros do not communicate with, and should not be
used with, previous generation Enphase Microinverters and Envoys. Always use IQ 6 and/or IQ6+
Microinverters with an IQ Envoy.
How the Enphase Microinverter System Works
The Enphase Microinverter converts the DC output of the PV module into grid-compliant AC power. In
addition to performing the DC to AC conversion, it maximizes energy production by using a sophisticated
Maximum Power Point Tracking (MPPT) algorithm. This integrated system maximizes energy harvest,
increases system reliability, and simplifies design, installation and management.
The IQ Envoy operates as a gateway between the Enphase devices and Enlighten, using precision Current
Transformers (CTs) to measure PV production and home energy consumption. It collects energy and
performance data from the PV system over on-site AC power lines, and it forwards that data to Enlighten, via
the Internet, for statistical reporting. Enlighten analyzes the data collected by each Enphase device
connected to the IQ Envoy. Essential for system monitoring and troubleshooting, Enlighten automatically
detects any shortfall in energy production, identifies possible causes, and suggests solutions.
Enlighten provides a wide range of information on system performance. You can access Enlighten on your
computer or mobile device and view current performance information at any time.

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
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Installation Planning and Preparation
Installation and operation of the IQ Envoy requires no specialized equipment or unique computer or
networking expertise. To the Local Area Network (LAN), the IQ Envoy is just another host on the network,
much like a personal computer. The IQ Envoy simply connects to the on-site router or Enphase Mobile
Connect™ (cellular modem) for communications with the Enphase Enlighten monitoring and analysis
website. The IQ Envoy communicates with the microinverters using the site’s power lines.
After the IQ Envoy is installed and the microinverters are scanned or provisioned, it maintains an internal
database of all known Enphase Microinverters at the site it manages. At regular intervals, the IQ Envoy polls
each microinverter for its energy data. Using its Internet connection, the IQ Envoy then forwards that
information to Enlighten. The IQ Envoy also reports any error conditions that affect it or the microinverters.
You can view both energy data and error conditions in Enlighten.
The IQ Envoy incorporates power line and Internet communications functions. One "side" of the IQ Envoy
communicates with the microinverters through power lines at the site. The other "side" of the IQ Envoy
communicates with Enlighten over the Internet.
Enlighten
Microinverters
Router
IQ Envoy
Load Center
POWER LINE
COMMUNICATIONS
NETWORK
COMMUNICATIONS
To Internet
Enphase Batteries

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
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Pre-installation Checks
Review the following pre-installation checks before you install the IQ Envoy.
IMPORTANT: Enphase IQ Envoy and IQ 6 and IQ 6+ Micros do not communicate with, and should not be
used with, previous generation Enphase Microinverters and Envoys. Always use IQ 6 and/or IQ6+
Microinverters with an IQ Envoy.
Plan the Power Connection
Plan to install the IQ Envoy in a NRTL certified, NEMA type 3R (or better) enclosure. Use an appropriately
rated enclosure if hard-wiring indoors.
Plan the Internet Connection
Additional requirements to use the Enlighten web-based monitoring and analysis software are:
• Internet connection for the IQ Envoy through a traditional router or modem or Enphase Mobile
Connect [Enphase model CELLMODEM-01 (3G) or CELLMODEM-03 (4G)]. Decide whether to
connect the IQ Envoy to the Internet using integrated Wi-Fi, an Enphase Mobile Connect modem,
or using a PLC bridge with Ethernet cables.
• One of the following Web browsers with cookies enabled: Chrome 44 or higher, Firefox 41 or
higher, Internet Explorer 11, Microsoft Edge for Windows, Safari 8 or higher.
Download the Installer Toolkit App
The Enphase Installer Toolkit is a mobile app for iOS and Android devices that allows
installers to configure the system while onsite, eliminating the need for a laptop and
improving installation efficiency.
• 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 to
track system installation progress. To download, go to
enphase.com/installer-toolkit or scan the QR code:
• Download the latest version of the software to your
mobile device. To do so, go to the Envoy Resources
screen in the Installer Toolkit Settings.
• To run the Installer Toolkit app, you need either of the following mobile
devices:
• An Android mobile device running Android version 5 (Lollipop) or
later, or
• An iOS device running iOS 8 or later.
Enphase Installer
Toolkit mobile
app

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
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Metering Considerations
The IQ Envoy includes a production CT and you may order two consumption CTs for consumption
monitoring. When installing CTs:
• Do not install the CTs in a panel where they exceed 75% of the wiring space of any cross-
sectional area within the panel, or refer to local standards for guidance.
To install the production CT
• Ensure there is sufficient room to install the production CT around line 1 of the solar PV
disconnect.
To install consumption CTs (order CT-200-SPLIT separately)
• For net consumption metering, ensure there is sufficient room to install both CTs around lines 1
and 2 from the main feeds.
• For total consumption metering, ensure there is sufficient room to install the CTs around the
lines that feed the consumption circuit.
Box Contents
Check the shipping box for the following items:
• Enphase IQ Envoy (look for the orange IQ logo)
• Solid-core production metering CT
• Length of DIN rail for mounting
• Ferrite bead to attach to your Ethernet Cable, if used
• Enphase IQ Envoy Quick Install Guide
Required Items
Install the IQ Envoy in a NRTL certified NEMA type 3R (or better) enclosure with conduit attachment when
installing outdoors. Do not drill holes on the top of the enclosure or anywhere that allows moisture ingress.
Metallic enclosures may impair Wi-Fi signal strength. Use an appropriately rated enclosure if installing
indoors.
Optional Items
Make sure you have the following optional items, if needed:
• If you plan to do consumption metering, you need two consumption metering split-core CTs
(order two CTs: Enphase CT-200-SPLIT)
• Decide which option to use for the Internet connection:
• Enphase Mobile Connect modem [order Enphase CELLMODEM-01 (3G) or CELLMODEM-
03 (4G)]
• Ethernet over power line communication (PLC) bridge with Ethernet cables (order
Enphase EPLC-01)
• Ethernet cable [802.3, Cat5E or Cat6, unshielded twisted pair (UTP)]. Do not use shielded
twisted pair (STP) cable.

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
10
System Capacity
The IQ Envoy performs production metering, optional consumption tracking, and monitors up to 600 Enphase
Microinverters and up to 39 Enphase AC Batteries.
NOTE: To install multiple Envoys at a single site, see our technical brief on commercial design at
enphase.com/support.
Create the Map and Install the PV Modules and Microinverters
Create the map and install the PV modules and microinverters. You will scan this map later using Installer
Toolkit and your mobile device. (See “Method A: Provision Devices with Installer Toolkit” on page 17.
NOTE: If needed, you can find an installation map at the back of any Enphase Microinverter
manual.
• Create a paper installation map to record microinverter serial numbers and positions in the array.
• As you do with the microinverters (and Enphase Batteries, if installed), peel the removable label
from the bottom of the IQ Envoy and affix it to the paper installation map.
• Always keep a copy of the installation map for your records.

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
11
Installation Sequence
Installation of the IQ Envoy has two parts. To ensure successful device detection, complete Part 2 after
installing any Enphase IQ Microinverters and/or Enphase Battery(ies).
!"#$%&&%$!'"()%*$(+(
1. Choose a location for the IQ Envoy
2. Wire the IQ Envoy for power and metering
!"#$%&&%$!'"()%*$(,(
4. Detect devices
7. Send system summary report
8. Activate monitoring
6. Connect to Enlighten
5. Verify configuration and enable the meters
3. Energize and update the IQ Envoy

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
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Installing the IQ Envoy – Part 1
To install the IQ Envoy, perform the following steps and refer to this diagram and the wiring diagram on the
following page:
1. Choose a Location for the IQ Envoy
WARNING: Risk of equipment damage. When installing the IQ Envoy in an enclosure, choose
area for installation where ambient temperature does not exceed 46º C (115º F).
a. Install the IQ Envoy near the main load center or PCC (point of common coupling) and consider the
length of the production CT leads (5feet) when choosing the location. Do not extend the leads of the
production CT.
b. Install the IQ Envoy in a protected dry space in an NRTL Certified, NEMA type 3R (or better) enclosure
with conduit attachment. Use an appropriately rated enclosure if hard wiring the IQ Envoy indoors.
NOTE: Metallic enclosures may impair Wi-Fi signal strength.
c. Mount the Envoy:
• Mount it horizontally using the included DIN rail.
• To wall-mount, use two #8 screws and a screwdriver. Mount the DIN rail first, then clip the IQ
Envoy to the DIN rail.
Terminal
block
USB
ports
LEDs and buttons
Ethernet port

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
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2. Provide a Power Connection
When you hard-wire the IQ Envoy, you must install it in a ventilated, NRTL certified NEMA type 3R-rated (or
better) enclosure with conduit attachment.
The IQ Envoy uses terminal blocks for power and metering connections. You must install one solid-core
current transformer (CT) for revenue-grade production metering. Consumption monitoring is optional and
requires that you order and install two additional split-core CTs. Use a protected route in conduit for the CT
wires from the main load center to the IQ Envoy. The consumption CT leads are 13 feet long. If you need to
extend the leads, refer to page 16. Do not extend the leads of the production CT.
DANGER! Risk of electric shock. Always de-energize circuits before wiring for power and CTs.
a. Use a two-pole circuit breaker of up to 20 A (maximum) for the supply wiring.
b. Make sure supply wiring is 12 to 14 AWG copper rated at 75° C or better.
c. Use a screwdriver to loosen the screw on the terminal block door and open the door.
d. Flip open the terminal block door and wire the line and neutral conductors as shown: Connect Line 1
to L1, Line 2to L2, and Neutral to N. Tighten to 10.5in-lbs.

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
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3. Install CTs for Metering
The IQ Envoy uses terminal blocks for metering connections. The UL listed energy-monitoring CTs provide
revenue-grade production metering and provide (optional) consumption metering. When wiring the IQ Envoy
for production and consumption metering, be sure to install the current transformers (CTs) exactly as
described for your application. You must use a protected route in conduit for the CT wires from the AC mains
to the IQ Envoy. If you need to extend the leads, see “Extend Consumption CT Leads, If Needed” on page 16.
DANGER! Do not install CTs when current is flowing in the sensed circuit. Always install CT wires in the
terminal blocks before energizing the sensed circuit.
DANGER! Risk of electric shock. Be aware that installation of this equipment includes risk of electric shock.
If you wire the IQ Envoy at the subpanel, always de-energize the main load center before beginning wiring. If
the subpanel cannot be de-energized, a qualified electrician may safely install the CTs as directed, making
sure to connect the leads and then place the CTs around each wire and latch.
WARNING! Do not install the CTs in a panel where they exceed 75% of the wiring space of any cross-
sectional area within the panel.
NOTES:
When wiring the IQ Envoy for production and consumption metering, be sure to install the
current transformers (CTs) exactly as described for your application.
When installing CTs, it is important to match CT and sense voltage 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 L1 and L2. If in doubt, use a multimeter to check.
Do not install the CTs in a panel where they exceed 75% of the wiring space of any cross-
sectional area within the panel, or refer to local standards for guidance.
Only run active conductors through the CT. The CT can monitor multiple active
conductors. You may run more than one wire through the CT if all wires are on the same
phase and they fit the opening in the CT.
Use the following diagram as a reference while installing the CTs:

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
15
Install the CT for Production Metering
a. Place the CT near L1of the solar production circuit and make sure the circuit is not energized
(breaker OFF).
b. Locate the arrow on the CT label.
c. Connect the white wire left “P1”terminal.
Connect the blue wire to the right “P1”terminal.
d. Tighten all connections to 5in-lbs (0.56 Nm).
e. Pass the L1wire through the CT in the same direction as the arrow on the side of the CT on Line 1
(matching Envoy’s “L1” voltage terminal) of the solar production circuit with the arrow pointing
toward the load (away from the solar array).
NOTE: Do not pass conductors from AC Battery branch circuits through the production CT. This
will distort production readings.
Install CTs for Consumption Metering (Optional)
Install two split-core CTs (order two CT-200-SPLIT) to provide consumption metering. Create a protected
route with conduit for the CT wires to the IQ Envoy.
a. Make sure that the main load center wires are de-energized until you have secured the CT wires in
the terminal blocks.
b. Before running the CT wires through the conduit, use colored tape to mark one of the CTs and the
free end of its wires. 
c. For the marked CT wires, connect the white wire to the upper “C1” terminal and the blue wire to to the
lower “C1” terminal.
d. For the unmarked CT wires, connect the white wire to the upper “C2” terminal and the blue wire to
the lower “C2” terminal. 
e. Tighten the terminal block screws to 5in-lbs (0.56 Nm).
f. Clamp the marked CT on the load center feed wire Line 1(matching the Envoy’s “L1” voltage
terminal) with the CT arrow pointing toward the load (away from the grid).
g. Clamp the unmarked CT on the load center feed wire Line 2(matching the Envoy’s “L2” voltage
terminal) with the CT arrow pointing toward the load (away from the grid).

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
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Extend Consumption CT Leads, If Needed
If needed, an electrician may extend the leads of the consumption CTs using the following guidance:
WARNING! To extend the CT leads, the electrician must use appropriately rated, 18-14 AWG,
twisted pair wire and install it in accordance with all applicable local electrical codes and the
National Electrical Code (NEC; NFPA 70).
The electrician may add as much as three ohms round trip resistance to the consumption CT or up to 1.5
ohms per wire. For reference, using NEC chapter 9 table 8 resistances, the following maximum lengths at 75°
C by gauge are:
• 57.6 meters (189feet) of 18AWG 7strand Cu = 1.5ohms
• 91.7meters (301 feet) of 16AWG 7strand Cu = 1.5ohms
• 148.4meters (478 feet) of 14AWG 7strand Cu = 1.5ohms
NOTE: In the NEC standard, chapter 9table 8 resistance figures may not be appropriate for all
geographies or installation conditions. A licensed electrician should determine the wire gauge
and type to obtain a maximum round trip resistance of three ohms.
Select wire that is Code type, NRTL certified, and rated for voltage and temperature for the specific
application. Mechanically protect the wires in a Code type, NRTL certified conduit or raceway. Use NRTL
certified connectors for splices and insulated splices from one another and from the raceway, conduit, or
junction box, if metallic.
Buried wires must be NRTL certified for direct burial and follow the Code for installation. Do not bury splices
unless in a NRTL certified junction box rated for the application, and use an NRTL certified moisture resistant
connection method.
4. Energize and Update the IQ Envoy
a. Close the terminal block door, and secure it with the screw.
b. Turn on the circuit feeding the IQ Envoy.
c. On the Envoy, if the AP Mode LED is not lit, press the AP Mode button.
d. On your mobile device, go to Settings and join the Wi-Fi network “Envoy_nnnnnn” (where “nnnnnn”
represents the final six digits of the IQ Envoy serial number).
e. The app informs you if the software on the Envoy is not the latest version by displaying the Envoy
Software Update message. If the app displays this message, follow the on-screen instructions to
update the Envoy.
WARNING! Do not remove power from the IQ Envoy during the update.
f. For a short period (5-10 minutes), you must keep your mobile device near the Envoy. Follow the on-
screen instructions while the update takes place.
The update may take up to 20 minutes. The Envoy reboots several times during the update and the LEDs light
up in varied sequences until the update is complete.
Once the update is finished and the PV system is installed, the Envoy is ready for Installation Part 2.
All four LEDs flash amber during boot up (approximately 3 minutes). When boot up is complete, the Device
Communications LED flashes amber indicating that microinverters are not yet detected.

IQ Envoy Installation and Operation
© 2017 Enphase Energy Inc. 141-00039 Rev 01
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Installing the IQ Envoy – Part 2
You must complete installation Part 2 after installing the PV system.
5. Detect the Devices
Use one of the following methods to detect devices (Enphase Microinverters and/or Enphase Batteries).
Method A: Provision Devices with Installer Toolkit
Use the Installer Toolkit mobile app to configure the IQ Envoy with the serial numbers of the installed
devices.
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 IQ Envoy with your mobile device as described in the side note.
d. Return to Installer Toolkit. If the serial number for the IQ Envoy 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 IQ Envoy, tap it to add it to the system.
e. Following the on-screen instructions, use the Installer Toolkit
app to create the arrays and scan the serial numbers from the
installation map.
f. Tap the Connect button. This provisions the scanned devices
on the IQ Envoy.
g. When prompted, confirm the number of devices that you
installed.
h. If your system requires a region-specific grid profile, select and
apply a grid profile to the devices. (Systems in Hawaii and
systems with Enphase Batteries require you to set a profile.)
The Device Communications LED lights solid green when all of the
provisioned devices are communicating or solid amber if any devices
are not communicating.
Method B: Discover Devices with Installer Toolkit
Use the Installer Toolkit mobile app to set the number of devices the IQ
Envoy should search for on the power line.
a. Connect to the IQ Envoy with your mobile device as described in
the side note.
b. Launch Installer Toolkit and tap Connect to an Envoy.
c. When prompted, enter the number of devices that you installed.
d. If your system requires a region-specific grid profile, select and apply a grid profile to the devices.
(Systems in Hawaii and systems with Enphase Batteries require you to set a profile.)
e. When prompted to start a device scan, tap OK.
The Device Communications LED flashes green while scanning. It lights solid green when all of the
devices you installed are communicating or solid amber if any devices are not communicating.
Connecting to IQ Envoy with a
Mobile Device:
The Envoy’s AP (Access Point)
Wi-Fi network allows you to
connect your mobile device to
the IQ Envoy. The AP Mode
LED lights solid green when
the network is available.
•On the IQ Envoy, if the AP
Mode LED is not lit,
press the AP Mode button.
•On your mobile device, go
to Settings and join the Wi-
Fi network “Envoy_nnnnnn”
(where “nnnnnn” represents
the final six digits of the
Envoy serial number).

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Method C: Discover Devices with the IQ Envoy
If you are not using the Installer Toolkit app, press the Device Scan button on the IQ Envoy. With this method,
the Envoy searches the power line for 15 minutes, but does not know how many devices it should discover.
The Device Communications LED flashes green for 15 minutes while scanning. At the end of the scan, it
lights solid green if at least one device was discovered or solid amber if no devices were discovered (or if
any discovered device stops communicating).
With All Methods
If the Device Communications LED remains solid, see “Device Detection Issues” on page 34.
6. Verify Configuration and Enable the Meters
While still connected to IQ Envoy with Installer Toolkit, check the Overview screen for the following:
WARNING! If using consumption metering, be sure to set the meter type correctly. You cannot
change this setting once the meter is enabled.
a. Confirm that the expected number of devices are discovered and communicating.
b. On the Overview screen, check that the grid profile is set on all the microinverters. Setting the profile
may take up to 5minutes for a typical system.
c. Tap the Meters button.
d. Tap Production Meter and follow the on-screen instructions to enable the Production Meter.
e. If you installed consumption metering CT(s), tap Consumption Meter and follow the on-screen
instructions to enable the Consumption Meter.
f. Return to the Overview screen and verify the meter reading(s).
If you used Installer Toolkit to detect microinverters, the Power Production LED lights solid green when all
expected microinverters are producing power. If you did not use Installer Toolkit, it lights solid green if all
communicating microinverters are producing power. It flashes green when microinverters are upgrading.
Check Installer Toolkit for production status details. If the Power Production LED remains solid amber, see
“Issue: Installer Toolkit Indicates that Scanning is Inhibited” on page 35.
7. Connect to Enlighten
The IQ Envoy requires a connection to the Internet for reporting to Enlighten. You can provide this connection
through an existing broadband router, other Wi-Fi access point at the installation site, or by using the
Enphase Mobile Connect cellular modem.
WARNING!Risk of Equipment Damage. Do not remove power from the IQ Envoy if the LEDs are
flashing green. This indicates that a software update is in progress.

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Connect to a broadband router using one of these methods, described in the following sections:
• Method A: Integrated Wi-Fi
• Method B: Enphase Mobile Connect [order Enphase CELLMODEM-01 (3G) or CELLMODEM-03 (4G)
separately]
• Method C: Ethernet cable (not included, installer must provide). This method requires that you use
the ferrite bead included with the IQ Envoy.
• Method D: Power Line Communication Bridges (order EPLC-01 separately). This method requires
that you use the ferrite bead included with the IQ Envoy.
Method A: Integrated Wi-Fi
The IQ Envoy integrated Wi-Fi operates at both 2.4GHz and 5GHz and supports several wireless security
protocols in addition to Wi-Fi WPS. These include WEP Open
System, WEP Shared Key, WPA-PSK, WPA2-PSK, WPA-EAP,
and WPA2-EAP. To use the Enphase integrated Wi-Fi, you
need a wireless router.
a. On the IQ Envoy, verify that no Ethernet cable is
plugged into the RJ45 port.
b. If your router supports WPS, press and hold the WPS button on the wireless router for a few
seconds. On most routers, a WPS LED begins flashing.
c. If you are using the Installer Toolkit mobile app, tap the Network button, tap Wi-Fi, and find and
select your network. If the wireless router does not support WPS, you may be prompted to enter a
password.
If you are not using the Installer Toolkit mobile app, you can only connect using WPS. Initiate a WPS
connection by pressing and holding the AP Mode button for 5seconds.
The Network Communications LED begins flashing green. Within three minutes the Network
Communications LED lights solid green, indicating a successful connection to the Internet and to
Enlighten. If the Network Communications LED remains off or lights solid amber see “Internet Connection
Issues” on page 36.

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Method B: Enphase Mobile Connect Modem
Order Enphase CELLMODEM-01 (3G) or CELLMODEM-03 (4G) separately.
To install Enphase Mobile Connect:
d. Connect the antenna(s) to the antenna connector(s) and mount the
modem as described in the Enphase Mobile Connect Installation Guide.
e. Connect the mini-USB cable to the modem and connect the other end of
the cable to the IQ Envoy. If receiving power from the IQ Envoy, the
modem power LED lights up.
Within three minutes the IQ Envoy Network Communications LED lights solid green, indicating a
successful connection to the Internet and to Enlighten.
NOTE: With Mobile Connect, the Envoy initially reports to Enlighten every five minutes for 12
hours or until the IQ Envoy detects the expected number of microinverters, which is based on the
number entered in Total Number of PV Modules in Enlighten. After that, the Envoy uses low
bandwidth reporting mode. Low bandwidth mode reports 15-minute interval readings and event
data to Enlighten four times a day rather than every 15 minutes as with other connection
methods.
Method C: Ethernet Cable
To use this method, you need an Ethernet cable and a broadband router. The Enphase IQ Envoy comes
packaged with a ferrite bead. You must attach this ferrite bead to your Ethernet cable to ensure there is no
communication interference between the IQ Envoy and other devices. To install the cable and ferrite bead:
a. Select a Cat5E or Cat6 Ethernet cable unshielded twisted pair (UTP). Do not use shielded twisted pair
(STP) cable.
b. Place the bead on the new cable, near one end, and close the latch.
c. Plug the cable end with the ferrite bead into the IQ Envoy Ethernet port.
d. Secure a tie wrap on the cable on each side of the ferrite bead.
e. Tighten an additional tie wrap around the ferrite bead.
f. Trim any tie wrap excess.
g. Plug the other end of the Ethernet cable into the network.
Within two minutes the Network Communications LED lights solid green, indicating a successful
connection to the Internet and to Enlighten.
When you use an Ethernet cable to connect to the LAN, two small LEDs on the Ethernet port indicate Ethernet
link and activity. When the cable is connected correctly, the link LED lights solid green and the activity LED
flashes green or yellow when data is sent or received.