Q U I C K I N S T A L L G U I D E IMPORTANT: This guide is for model XAM1-120-B / 880-00834 ONLY. Check model number on unit. Wiring instructions differ depending on the model number.

Installing the Enphase AC Combiner Box

The Enphase AC Combiner Box™ combines up to three AC branch circuits of Enphase AC Batteries, M-Series Microinverters and/or S-Series Microinverters. To install the Enphase AC Combiner Box, read and follow all warnings and instructions in this Guide and in the Enphase Envoy-S Installation and Operation Manual at: enphase.com/support . Safety warnings are listed on the back of this guide. If you do not fully understand any of the concepts, terminology, or hazards outlined in these instructions, refer installation to a qualified electrician or installer. These instructions are not meant to be a complete explanation of a renewable energy system. All installations must comply with national and local electrical codes. Professional installation is recommended.

The AC Combiner Box is an outdoor-rated, NRTL-certified NEMA type 3R, polycarbonate enclosure containing an Enphase for Envoy-S connections.

Envoy-S™, circuit breakers, and wiring

How It Works

M-Series or S-Series

Microinverters

AC Combiner with Envoy-S

Load

Center

Router

POWER LINE

COMMUNICATIONS

Enphase AC Batteries

NETWORK

COMMUNICATIONS

Network Communications LED

Green when Envoy-S is connected to Enlighten.

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.

Device Communications LED

Green when devices are communicating with Envoy-S.

Device Scan Button

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

Enphase

Enlighten™

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, flashing when an operation is in progress, or solid amber when troubleshooting with Installer Toolkit is required. For a legend of all LED states, see Troubleshooting a .

Enphase Installer

Toolkit mobile app

PREPARATION

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 enphase.com/toolkit or scan the QR code at right.

B) Check the box for the following items:

•

Enphase AC Combiner Box with Envoy-S

•

•

Ferrite bead to attach to your Ethernet Cable, if used

Enphase AC Combiner Box Quick Install Guide (this document)

C ) Make sure you have the following required items:

•

Plan to use screwdriver, pliers, and torque wrench.

•

•

Provide overcurrent protection in the load center in accordance with

NFPA 70, §705.12.

Provide suitable mounting hardware: use screws that are long enough to secure the unit to the vertical mounting surface

•

•

Use copper conductors rated for wet locations and sized to meet local code requirements and voltage drop/rise considerations.

(Breakers are rated for 14-6 AWG copper, and output lugs are rated for 14-4 AWG copper).

Use only UL Listed rain-tight or wet location hubs for wire entry into the enclosure.

D ) If you plan to do consumption metering:

•

Make sure you have two split-core consumption metering CTs (order

•

CT-200-SPLIT).

Check that there is enough space in the load center to install CTs.

Do not install the CTs in a panel where they exceed 75% of the wiring space of any cross-sectional area within the load center.

E ) Decide how to connect the Envoy-S to the Internet: Use Wi-Fi, an Enphase Mobile Connect modem, or Ethernet. Then, make sure you have the following optional items, if needed:

•

Enphase Mobile Connect modem [order CELLMODEM-01 (3G) or

•

•

CELLMODEM-03 (4G)]

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

Ethernet cable: 802.3, Cat5E or Cat6, unshielded twisted pair (UTP).

Do not use shielded twisted pair (STP) cable.

F ) Create a paper installation map to record device serial numbers and positions in the array. You will scan this map later using Installer Toolkit and your mobile device.

•

Peel the removable serial number label from each device and affix it

•

• to the respective location on the paper installation map.

Write the Envoy-S serial number on the paper installation map. Later, you will need to enter this number in Installer Toolkit. You can type it in manually or scan the label on the inside of the AC Combiner door.

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

G ) Note that installation of the Combiner has two parts.

To ensure successful device detection, complete Part 2 after installing any Enphase Microinverters and/or Enphase AC Battery(ies).

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

Enphase Microinverter Quick Install Guide.

INSTALLATION — Part 1

You can complete Installation Part 1 before or after installing the PV system.

A ) Install the AC Combiner Box in a readily accessible location. The best practice is to install at least four feet (1.2 meters) off the ground.

However, never install below three feet (0.9 meters) off the ground.

B ) Consider the dimensions of the combiner box, easy access, box height, and length of cable when selecting the location. Do not block the vents. The box is rainproof but not watertight.

NOTE: You must mount the Combiner within 15 degrees of vertical.

A ) If needed, reposition the mounting feet. You can adjust each of the four mounting feet to several different positions. Adjust as desired for the mounting location.

B ) Open the enclosure door. Pinch the top of the hinge rod using a needle-nosed pliers. Slide the door up and away to remove it. Set the door aside for later reattachment.

Warning! The AC Combiner has a pre-installed heat shield attached to the enclosure door. Do not remove the heat shield.

C ) Mount the box on a vertical surface, using supplied washers to protect the feet.

D ) Remove the clear plastic deadfront and keep the screws and washers in a safe place (for example, inside the removed enclosure door).

E ) Locate and remove the Spare Parts and XA-SLOT bags.

The combiner includes three 20 A, 2-pole circuit breakers for combining inputs and one single-pole 5A breaker for the 5A AC outlet. If required by local jurisdiction, you can remove unused 2-pole breaker(s) and install a blanking plate. Every AC Combiner comes with a blanking plate with screws.

If you do not need to remove circuit breaker(s), skip this step.

Loosen these screws

A ) Use a straight blade screwdriver to completely loosen the busbar side of the Line 1 and Line 2 terminal blocks

(gray).

B ) Remove the load wire(s), if any, on the breaker you want to remove.

C ) Loosen the busbar lug(s) of only the breaker you want to remove.

D ) Release the DIN rail locking tabs of all breakers.

E ) Rock the breaker/busbar assembly to the left to release it from the DIN rail, and remove the breaker.

F ) Rock the breakers back to the right so they are seated back on the DIN Rail.

G ) Lock all of the breaker DIN rail locking tabs.

H ) Tighten the busbar side of the

Line 1 and Line 2 terminal blocks (gray) to 14 in-lbs (1.6 Nm).

I ) Verify that all busbar connections are tight.

J ) Position the blanking plate onto the dead front over the location of the removed breaker.

K ) Use a screwdriver and the two provided screws to secure the plate into place.

Locking tabs

Note: If needed, you can request a cover for the 5A AC outlet from enphase.com/en-us/ support/contact .

Blanking plate

Foot mounting on back of unit

Foot mounted horizontally

Mounting foot

Foot mounted at an angle

Foot mounting screw

Foot mounted vertically

Warning! Do not drill conduit holes on the top of the box or at any location that allows moisture ingress. This voids the warranty for the combiner box and the Envoy-S.

A ) A label on the outside of the combiner box indicates the best location to make a hole or holes to accept conduit fittings. Locate this label.

Best Practice: Use a stepped drill bit for making the conduit holes. Using a hole saw may crack the plastic housing. As an alternative, use a sharp chassis punch with caution. Drill only at the label location. Do not drill a hole in any other location on the box.

Note: The label template has three holes, but most applications require only two.

B ) Use the provided label as a template for typical conduit placement. The center of the holes on the label are marked with a “+” .

C ) Use a snap punch or other type of center punch to prevent the drill from wandering. Drill a pilot hole with a smaller drill before using a step drill bit.

D ) Remove the label after drilling.

E ) Use only UL-listed rain-tight or wet location hubs for wire entry into the enclosure.

A ) Use conductors sized per local code requirements (output lug is rated for 14 to 4 AWG copper conductors for combined output) taking into consideration the voltage drop/rise and upstream breaker or fuse.

B ) The two DIN rail terminal blocks above the circuit breakers are the output connections. Install the black wire into the lower terminal block and the red into the upper terminal block.

C ) Torque to 14 in-lbs (1.6 Nm).

D ) Connect the neutral (white) to the neutral busbar.

E ) Connect the ground (green or green/yellow) to the “Ground” busbar and torque to 45 in-lbs (5 Nm).

WIRING REFERENCE

The following lists tightening torque, allowable wire size, and type for field-wiring terminals:

•

•

20 in-lbs tightening torque for circuit breaker connections

14 in-lbs tightening torque for combined output connections

•

•

•

•

•

45 in-lbs tightening torque for large neutral and ground busbar screws

(1/0-14 AWG)

20 in-lbs tightening torque for small neutral and ground busbar screws

(6-14 AWG)

14 to 6 AWG for branch inputs

14 to 4 AWG for combined output

Wire type: 75°C or higher copper conductors, rated for wet locations

WIRING DETAIL

5A outlet for

Enphase accessories only

The combiner comes with three 20A circuit breakers (16A continuous) to which you must wire the device AC branch circuits.

A ) Use copper conductors sized to meet local code requirements and voltage drop/rise considerations (breaker lug is rated for 14 to 6 AWG copper for branch inputs).

B ) Bring in the wires from each AC branch circuit (PV and/or battery).

C ) Connect the neutral (white) to the neutral busbar and the ground (green or green/yellow) to the ground busbar. Torque to 45 in-lbs (5 Nm).

D ) If an AC Battery branch circuit is installed, connect the neutral (white) from that circuit to the neutral busbar. Torque to 45 in-lbs (5 Nm).

E ) Pass the L1 conductors from each PV branch circuit through the production CT in the same direction as the arrow on the side of the CT.

Note: Do not pass conductors from AC Battery branch circuits through the production CT. This will distort production readings.

F ) Connect L1 and L2 (usually one black and one red) from each AC branch circuit (PV and/or battery) to the circuit breakers.

G ) Torque to 20 in-lbs (2.4 Nm).

Enphase Envoy-S

Combiner output:

Line 2

Line 1

Breaker for

5A outlet

Combiner breakers

Neutral busbar

Production CT

Ground busbar

AC Battery input

PV inputs Output to load center

Warning! Observe bend radius requirements when routing wires.

The Envoy-S inside the AC Combiner Box is pre-wired at the terminal blocks for power and production metering connections. One solid-core current transformer

(CT) is provided for revenue grade production metering. You can install two optional split-core CTs to provide consumption metering. To do this, 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: 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) 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 “IA•” and the blue wire to “IA”.

D) For the unmarked CT wires, connect the white wire to “IB•” and the blue wire to “IB”.

E) Tighten all connections to 5 in-lbs.

F) 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).

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

DANGER!

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

DANGER! Risk of electrocution! 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.

Notes: It is important to match CT and sense voltage phases. To properly measure power and energy, CT inputs must align with the respective voltage inputs. Be sure to consistently identify and match the two AC lines at two points: the main load center feed and the Envoy. Wire colors

(typically black and red) may not always consistently identify Lines 1 and

2. If in doubt, use a multimeter to check.

From AC Combiner

Load Center Envoy-S Terminal Block

A

B

N

C

CU, 14 AWG, 75C

MEAS CAT III

OVC III

Production

IA● IB● IC●

IA

Consumption

IA● IB● IC●

IB IC IA



IB IC

Digital Input

1 2 3 4

REF CMN CMN 5

Relay

NO

C

PD, B300

OVC II white blue

Consumption

CTs

To Grid

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

B ) Re-install the clear plastic deadfront. Start all of the screws, but do not completely tighten them. Once all screws are partially tightened, go back and tighten each one completely.

C ) Reinstall the AC Combiner door.

D ) Turn on the circuit feeding the combiner.

E ) On the Envoy-S, if the AP Mode LED is not lit, press the AP Mode button.

F ) 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).

G ) 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.

H ) 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 lights solid amber, indicating that devices are not yet detected.

INSTALLATION — Part 2

You must complete Installation Part 2 after installing any Enphase Microinverters and/or Enphase Battery(ies).

9

Detect 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 Envoy-S with the serial numbers of the installed devices.

A ) Launch the Installer Toolkit app 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 (smart phone or tablet) to the Envoy-S. The AP Mode LED lights solid green when the network is available.

•

On the 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-S serial number).

D ) If the serial number for the 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 Envoy, tap it to add it to the system.

E ) Following the on-screen instructions 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

Envoy.

G ) When prompted, confirm the number of devices that you installed.

H ) If your system is in Hawaii or in a region that does not use the Facto-

ry-Installed Grid Profile, select and apply a grid profile to the devices.

The Device Communications LED lights solid green if all 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 Envoy-S should search for on the power line.

A ) Connect to the Envoy-S with your mobile device (smart phone or tablet) to the Envoy-S. The AP Mode LED lights solid green when the network is available.

•

On the 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-S serial number).

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 is in Hawaii or in region that does not use the Facto-

ry-Installed Grid Profile, select and apply a grid profile to the devices.

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

The Device Communications LED flashes green while scanning, solid green when all the devices you installed are communicating, or solid amber if any devices are not communicating.

With both methods

If the Device Communications LED remains solid amber, see

Troubleshooting b .

While still connected to the Envoy-S with Installer Toolkit, check the Overview screen for the following:

A ) Confirm that the expected number of devices are detected and communicating.

B ) Check that the new profile is set on all the devices. Setting the profile may take up to 5 minutes 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 devices, 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 devices are upgrading. Check Installer Toolkit for production status details. If the Power

Production LED remains solid amber, see Troubleshooting c .

This section describes using the Envoy-S integrated Wi-Fi or the Mobile

Connect modem. For information about using Ethernet and/or PLC bridges, refer to the Enphase Envoy-S Installation and Operation Manual at: enphase.com/support .

Method A // Integrated Wi-Fi

Requires a wireless router with an Internet connection.

A ) On the Envoy, verify that no Ethernet cable is plugged into the RJ45 port.

B ) If the router supports WPS, press and hold the WPS button on the wireless router for a few seconds. On most routers, a WPS indicator begins flashing.

C ) If you are using the Installer Toolkit mobile app, tap the Network button, tap Wi-Fi, and then tap your network from the list of available networks. If the wireless router does not support

WPS, you may be prompted to enter a password.

The Network Communications LED begins flashing green. Within three minutes the Network Communications

Envoy-S wireless router

LED lights solid green, indicating a successful connection to Enlighten. If the Network Communications LED remains off or lights solid amber, see

Troubleshooting d .

Method B // Enphase Mobile Connect Modem

(Order CELLMODEM-01 separately)

A ) Connect the antenna(s) to the modem, and mount the modem as described in the Enphase Mobile Connect Installation Guide.

B ) First, connect the USB cable to the Envoy-S and then connect the mini-USB connector to the modem. If receiving power from the Envoy-S, the modem power LED lights.

Within three minutes the Network Communications

LED lights solid green, indicating a successful connection to Enlighten. If the Network Communications

LED remains off or lights solid amber, see Troubleshooting in the Enphase Mobile Connect Installation

Guide.

Envoy-S

Enphase

Mobile

Connect

Method C // Power Line Communication Bridges

(Order EPLC-01 separately)

Requires a broadband router with an Internet connection.

A ) Plug one of the bridges into the AC outlet in the AC Combiner.

B ) Place the ferrite bead on the cable, near one end, and close the latch.

C ) Plug the cable end with the ferrite into the Envoy-S Ethernet port, and secure a tie wrap on the cable on each side of the ferrite bead.

D ) Tighten an additional tie wrap around the ferrite bead.

E ) Trim any tie wrap excess.

F ) Plug the other end of the Ethernet cable into the bridge.

G ) Plug the other bridge into an AC outlet near the broadband router.

H ) Connect one end of a second Ethernet cable to the second bridge, and connect the other end of the cable into the broadband router.

Within three minutes the Network Communications LED lights solid green, indicating a successful connection to the Internet and to Enlighten.

Note: If you do not use the 5A AC outlet in the Combiner, you can request a cover for the outlet from enphase.com/en-us/support/contact .

When you have completed your system setup, you can generate and email a summary report.

A ) From Installer Toolkit, tap Done in the upper-right corner of the screen to disconnect from the Envoy. Installer Toolkit will ask if you want to view a summary report.

B ) Tap View Report. The report displays Envoy-S and system information with a list of device serial numbers, their last power reports, and information about the grid profile applied to the microinverters.

C ) Tap to email the report to your office as a record of successful system installation or to the utility for evidence of grid profile settings.

A ) Turn off power to AC combiner box at the main load center. Verify that all power is removed from the system before attempting any wiring.

B ) Open the AC Combiner Box door.

C ) Remove the clear plastic dead front, and keep the screws and washers in a safe place.

D ) Measure voltage L1 to L2, L1 to N, and L2 to N to make sure there is no voltage present.

E ) Re-torque all field wiring connections, and busbar side of output terminal blocks (if a breaker was removed), one hour after first torque.

DANGER! Risk of arcing over time. Do not skip this step.

You must re-torque all field wiring connections after one hour.

F ) Close and secure the door of the combiner box so that it is protected against moisture and rain.

Register the Envoy-S in Enlighten ( enlighten.enphaseenergy.com) .

Method A // If the Envoy-S is associated with a system in Installer Toolkit

A ) On your mobile device, go to Settings and disconnect from the Envoy’s

AP Wi-Fi network.

B ) Return to the Installer Toolkit app and tap the Sync button on the System Overview screen.

C ) When you have access to a computer, log in to Enlighten and select the system name from the Activation List on the dashboard.

D ) From the activation form, open Array Builder.

If you used Installer Toolkit to build arrays and scan device serial numbers, the array(s) are built —make any necessary adjustments in Array Builder.

If you did NOT use Installer Toolkit to build arrays and scan device serial numbers, create the virtual array in Array Builder using the installation map as your reference. (You may need to wait if the devices have not yet reported to Enlighten.)

Method B // If the Envoy-S is NOT associated with a system in

Installer Toolkit

A ) Log into Enlighten and click Add a New System from the dashboard.

B ) Enter the System, Installer, Owner, and Location information.

C ) Enter the Envoy-S serial number.

D ) Click Save to submit the form.

E ) After the devices have reported to Enlighten, open Array Builder from the activation form, and create the virtual array, using the installation map as your reference.

TROUBLESHOOTING

a

LED overview

LED State Description

All

Network communications

AP mode

Power production

Device communications

Flashing amber in unison The Envoy-S is booting up

Flashing green sequentially Software upgrade in progress

Solid green

Flashing green

Solid amber

Off

Solid green

Off

Solid green

Flashing green

Solid Amber

Off

Solid Green

Flashing Green

Solid Amber

Off

Communicating with Enlighten

WPS connection in progress, or

Envoy-S is attempting to connect to Enlighten

Local network connection only

No network connection

AP mode enabled:

Envoy-S Wi-Fi network available

AP mode disabled:

Envoy-S Wi-Fi network unavailable

All communicating microinverters are producing

Microinverter upgrade in progress

At least one microinverter is not producing

Microinverters are not communicating

(low light or night time)

All devices are communicating

Device scan in progress

At least one device is not communicating

Devices are not communicating

(low light or night time) b

Device detection issues

If the Device Communications LED lights solid amber, it may be a result of low light levels. If there isn’t enough sunlight to power up the microinverters, they can’t communicate with the Envoy.

If there is sufficient daylight for the microinverters to power up, the issue may be that the

Envoy is having difficulty communicating over the power lines. To troubleshoot this issue:

•

Check the Installer Toolkit mobile app to see which devices are not

• communicating.

Check that the circuit breaker(s) in the AC Combiner Box for the PV array are in the

•

“ON” position.

Verify that the PV modules are connected to the microinverters.

•

Verify the PV module DC voltage is within the allowable range for the microinverter.

c

Power production issues

If the Power Production LED lights solid amber, check the Installer Toolkit mobile app to see which microinverters are not producing:

•

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.

•

If all of the non-productive microinverters are on the same branch, check the break-

• er and wiring starting at the junction box for the affected branch.

If only one or scattered microinverters are not producing power, first check to see that the AC connectors are fully seated in the Engage Cable connectors. Next, check that each module is providing the required startup voltage for the microinverter

(22V). A PV module that is failing or that is undersized may not generate enough power for AC conversion.

d

Internet connection issues

If you are using Wi-Fi and the Network Communications LED

•

remains off:

The WPS connection window may have timed out. Retry the connection steps.

•

Make sure that the broadband router is operational by checking that other devices

• at the site can access the network.

Be aware that metal enclosures or obstructions impede wireless communication.

•

If you cannot see your router or access point in the list on the Envoy, or cannot maintain a connection, it may be necessary to add a wireless repeater to extend the network range.

If you are using Wi-Fi and the Network Communications LED lights solid amber, make sure that the broadband router is connected to the Internet by checking that other devices at the site can access the Internet.

If you are using the Enphase Mobile Connect modem and the Network Communications

LED remains off or lights solid amber, see Troubleshooting in the Enphase Mobile

Connect Installation Guide.

For any connection method, you can troubleshoot network issues with the Installer Toolkit mobile app by tapping the Network button, then Diagnostic Tools.

If you replace the broadband router, configure the Envoy-S Wi-Fi settings for the new

Wireless Network Name (SSID) and password, or use the WPS function described in

Installation Step 11.

A

B

E

F e

Loss of AC to a single branch of microinverters

If a single branch of microinverters is not producing, it may indicate loss of AC to the branch.

Using a multi-meter set to AC, refer to the figure below and test for the following values:

•

Test point A to test point B. The result should be around 240 VAC.

•

Test point A to test point C. The result should be around 120 VAC.

•

Test point B to test point C. The result should be around 120 VAC.

•

If not, there may be a problem with the supply wiring.

Test point C to the screws on the load-side breaker screws (D). The result should be around 120 VAC.

If not, switch the breaker off and on to reset. If this does not remedy the problem, contact Enphase Customer Support ( enphase.com/en-us/support/ contact ).

f

Inoperable Envoy-S (all LEDs off)

If the Envoy-S is not receiving power, all LEDs will be off.

Using a multi-meter set to AC, refer to the figure below and test for the following values:

•

Test point A to test point C. The result should be around 120 VAC.

•

If not, check the supply wiring.

Test point C to test point D. The result should be around 120 VAC.

If not, contact Enphase Customer Support ( enphase.com/en-us/support/contact ).

g

Inoperable Envoy-S and no AC to branch

If a single branch of microinverters is not producing and the Envoy-S LEDs are off, do the following:

Using a multi-meter set to AC, refer to the figure below and test for the following values:

•

Test point C to test point E. The result should be around 120 VAC.

•

Test point C to test point F. The result should be around 120 VAC.

•

Test point C to test point G. The result should be around 120 VAC.

•

Test point C to test point H. The result should be around 120 VAC.

If not, there may be a problem with the wiring from the panel.

Test Points

G

H

C

D

AC Battery input

PV inputs Output to load center

SAFETY

IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS

This guide contains important instructions that you must follow during installation and maintenance of the AC Combiner Box.

Safety and Advisory Symbols

+

*

✓

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 particularly important for optimal system operation. Follow instructions carefully.

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Safety Instructions

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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. Warranty void if cover removed. If the Envoy-S fails, contact Enphase Customer Support for assistance

(enphase.com/en-us/support/contact).

DANGER: Risk of electrocution! Do not install CTs when current flowing in the sensed circuit. Always install CT wires in the terminal blocks before energizing the sensed circuit.

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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.

DANGER: Risk of electric shock. Be aware that installation of this equipment includes risk of electric shock. Do not install the AC Combiner without first removing AC power from the Enphase System. Ensure the power coming from the microinverters is de-energized before servicing or installing.

DANGER: Risk of electric shock. Risk of fire. Only qualified personnel should troubleshoot, install, or replace the AC Combiner.

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DANGER: Risk of electric shock. Improper servicing of the AC Combiner or its components may result in a risk of shock, fire or explosion. To reduce these risks, disconnect all wiring before attempting any maintenance or cleaning.

DANGER: Risk of electric shock. Always de-energize the AC branch circuit before servicing. While connectors are rated for disconnect under load, it is a best practice to de-energize before disconnecting.

DANGER: Risk of electric shock. Risk of fire. Only use electrical system components approved for wet locations.

DANGER: Risk of electric shock. Risk of fire. Ensure that all wiring is correct and that none of the wires are pinched or damaged.

DANGER: Risk of electric shock. Risk of fire. Do not work alone. Someone should be in the range of your voice or close enough to come to your aid when you work with or near electrical equipment. Remove rings, bracelets, necklaces, watches etc. when working with batteries, photovoltaic modules or other electrical equipment.

DANGER: Risk of electric shock. Risk of fire. Before making any connections verify that the circuit breakers are in the off position. Double check all wiring before applying power.

DANGER: Risk of electric shock. Risk of fire. Do not wire unused terminals or terminal blocks on the Envoy-S.

DANGER: Risk of arcing over time. You must re-torque all field wiring connections after one hour.

WARNING: Before installing or using the AC Combiner Box, read all instructions and cautionary markings in the technical description and on the equipment.

WARNING: Use the circuit breakers in the Enphase AC Combiner Box only for serving Enphase equipment. No other loads are allowed.

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WARNING: This unit is not provided with a GFDI device. This inverter or charge controller must be used with an external GFDI device as required by the Article 690 of the National Electrical Code for the installation location.

WARNING: The AC Combiner Box has a pre-installed heat shield attached to the enclosure door. Do not remove the heat shield.

WARNING: This product is intended for operation in an environment having a maximum ambient temperature of 46ºC (115ºF).

NOTE: Perform all wiring in accordance with all applicable local electrical codes, with the Canadian Electrical Code, Part I, and with the National

Electrical Code (NEC), ANSI/NFPA 70.

NOTE: Protection against lightning and resulting voltage surge must be in accordance with local standards.

NOTE: Using unapproved attachments or accessories could result in damage or injury.

NOTE: Install the AC Combiner Box in the field with 75°C or higher copper conductors sized per local code requirements and voltage drop/rise considerations.

NOTE: Use Class 1 wiring methods for field wiring connections to terminals of a Class 2 circuit. Use 14 to 6 AWG wire for branch circuits and 14 to 4

AWG for output circuits. Select the wire gauge used based on the protection provided by the circuit breakers/fuses. Overcurrent protection must be installed as part of the system installation.

NOTE: To ensure optimal reliability and to meet warranty requirements, the Enphase AC Combiner Box must be installed according to the instructions in this manual.

FCC Statement: 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.

This Class B digital apparatus complies with Industry Canada ICES-003.

Enphase Customer Support: enphase.com/en-us/support/contact