Enphase IQ 7 Manuale utente

INSTALLATION AND OPERATION MANUAL

June 11, 2020 141-00047-01

Enphase IQ 7, IQ 7+, IQ 7X, and IQ 7A

Micros with EN4 Bulkhead

IQ 7 Series Micro with EN4 Bulkhead

IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation

Corporate Headquarters Contact Information

Enphase Energy Inc.

47281 Bayside Parkway

Fremont, CA 94538 USA

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

Product information is subject to change without notice. All trademarks are recognized as the property of

their respective owners.

User documentation is updated frequently; Check the Enphase website (enphase.com/support) for the

latest information.

To ensure optimal reliability and to meet warranty requirements, the Enphase Microinverter must be

installed according to the instructions in this manual. For warranty text refer to enphase.com/warranty.

For Enphase patent information refer to enphase.com/company/patents/.

IQ Envoy, IQ Combiner, IQ Microinverter, Installer Toolkit, Enlighten and other trademarks or service

names are the trademarks of Enphase Energy, Inc. Data subject to change.

Audience

This manual is intended for use by professional installation and maintenance personnel.

 
IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation 
 © 2020 Enphase Energy Inc. All rights reserved. 141-00047-01 
 
3 
Table of Contents 
Important Safety Information .......................................................................................................................................... 5 
Read this First.................................................................................................................................................. 5 
EN4 Bulkhead Microinverters........................................................................................................................... 5 
Product Labels ................................................................................................................................................. 5 
Safety and Advisory Symbols........................................................................................................................... 5 
IQ 7 Series Microinverter Safety Instructions................................................................................................... 6 
PV Rapid Shutdown Equipment (PVRSE) ....................................................................................................... 8 
The Enphase IQ System................................................................................................................................................. 9 
How the Enphase IQ Series Micros Work...................................................................................................... 10 
System Monitoring..................................................................................................................................... 10 
Optimal Reliability...................................................................................................................................... 10 
Ease of Design........................................................................................................................................... 10 
Planning for Microinverter Installation........................................................................................................................... 11 
Compatibility................................................................................................................................................... 11 
About EN4 Bulkhead Microinverters .............................................................................................................. 12 
Grounding Considerations.............................................................................................................................. 12 
Branch Circuit Capacity.................................................................................................................................. 13 
Utility Service Requirements.......................................................................................................................... 13 
Wire Lengths and Voltage Rise...................................................................................................................... 13 
Lightning and Surge Suppression.................................................................................................................. 14 
Parts and Tools Required............................................................................................................................................. 14 
Enphase Equipment....................................................................................................................................... 14 
Other Items..................................................................................................................................................... 14 
Enphase Microinverter Installation................................................................................................................................ 15 
Step 1: Position the Enphase Q Cable........................................................................................................... 16 
Step 2: Position the Enphase Q Aggregator or Junction Box ........................................................................ 16 
Step 3: Mount the Microinverters ................................................................................................................... 17 
Step 4: Create an Installation Map................................................................................................................. 18 
Step 5: Manage the Cabling........................................................................................................................... 19 
Step 6: Connect the Microinverters................................................................................................................ 19 
Step 7: Terminate the Unused End of the Cable............................................................................................ 20 
Step 8: Complete Installation of the Enphase Q Aggregator or Junction Box................................................ 21 
Step 9: Connect the PV Modules................................................................................................................... 21 
Step 10: Energize the System........................................................................................................................ 22 
Set Up and Activate Monitoring...................................................................................................................... 22 
Troubleshooting............................................................................................................................................................ 23 
Status LED Indications and Error Reporting .................................................................................................. 23 
LED Operation........................................................................................................................................... 23 
DC Resistance Low –Power Off Condition............................................................................................... 23 
Other Faults............................................................................................................................................... 24 
Troubleshoot an Inoperable Microinverter...................................................................................................... 25 
Disconnect a Microinverter............................................................................................................................. 26 
Install a Replacement Microinverter............................................................................................................... 27 

IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation

Ordering Replacement Parts.......................................................................................................................... 29

Enphase Q Cable Planning and Ordering...................................................................................................... 29

Connector Spacing Options ........................................................................................................................... 29

Cabling Options.............................................................................................................................................. 29

Enphase Q Cable Accessories....................................................................................................................... 30

Technical Data.............................................................................................................................................................. 31

Technical Considerations............................................................................................................................... 31

Specifications................................................................................................................................................. 32

IQ7-60-E-US Microinverter Specifications................................................................................................. 32

IQ7PLUS-72-E-US Microinverter Specifications........................................................................................ 35

IQ7X-96-E-US Microinverter Specifications............................................................................................... 37

IQ7A-72-E-US Microinverter Specifications............................................................................................... 39

Q Cable Specifications............................................................................................................................... 41

Enphase Connector Ratings...................................................................................................................... 41

Enphase Installation Map............................................................................................................................... 42

Sample Wiring Diagram ................................................................................................................................. 43

IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation

Important Safety Information

Read this First

This manual contains important instructions for use during installation and maintenance of the IQ 7™Series

Microinverters with the Enphase EN4 bulkhead.

EN4 Bulkhead Microinverters

IMPORTANT: Enphase IQ Series EN4 Microinverters include AC and DC connectors integrated into the microinverter

bulkhead. The AC port of the Enphase EN4 bulkhead connects to an Enphase Q Cable or Enphase Field Wireable

Connector. The DC port of the EN4 bulkhead has been evaluated by UL for intermatability with TE PV4-S

SOLARLOK connectors, and several other connectors, that have been Listed and identified for intermatability with the

Enphase EN4 bulkhead connector, which allows you to plug them directly into the IQ7 Series microinverter with EN4

bulkhead. For other connector combinations, Enphase bulkhead adapters are required.

An IQ Envoy is required to monitor performance of the IQ Microinverters. The Q Accessories work only with Enphase

IQ Series Microinverters.

Product Labels

The following symbols appear on the product label and are described here:

WARNING: Hot surface.

DANGER: Refer to safety instructions.

DANGER: Risk of electrical shock.

Refer to manual

Double-insulated

Safety and Advisory Symbols

To reduce the risk of electric shock, and to ensure the safe installation and operation of the EnphaseIQ System, the

following safety symbols 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.

WARNING:

This indicates a situation where failure to follow instructions may result in burn injury.

NOTE:

This indicates information that is very important for optimal system operation. Follow instructions

closely.

IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation

IQ 7 Series Microinverter Safety Instructions

General Safety

DANGER: Risk of

electric shock.

Risk of fire.

Only use electrical system components approved for wet locations.

Only qualified personnel should install, troubleshoot, or replace Enphase Microinverters or Enphase

Q Cable and Accessories.

Ensure that all AC and DC wiring is correct and that none of the AC or DC wires are pinched,

shorted or damaged. Ensure that all AC junction boxes are properly closed.

Do not exceed the maximum number of microinverters in an AC branch circuit as listed in the

manual. You must protect each microinverter AC branch circuit with a 20 A maximum breaker or

fuse as appropriate.

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.

Be aware that installation of this equipment includes risk of electric shock.

The DC conductors of this photovoltaic system are ungrounded and may be energized.

Always de-energize the AC branch circuit before servicing. While connectors are rated for

disconnect under load, Enphase does not recommend disconnecting the DC connectors under load.

WARNINGS:

Before installing or using the Enphase Microinverter, read all instructions and cautionary markings

in the technical description, on the Enphase equipment and on the photovoltaic (PV) equipment.

Do not connect Enphase Microinverters to the grid or energize the AC circuit(s) until you have

completed all of the installation procedures and have received approval from the electrical utility.

When the PV array is exposed to light, DC voltage is supplied to the power conversion equipment

(PCE).

Risk of equipment damage. Enphase male and female connectors must only be mated with the

matching male/female connector.

NOTES:

To ensure optimal reliability and to meet warranty requirements, install the Enphase equipment

according to the instructions in this manual.

The AC and DC connectors on the cabling are rated as a disconnect only when used with an

Enphase Microinverter.

Use recommended disconnection tools to prevent damage to the microinverter

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

Perform all electrical installations in accordance with all applicable local electrical codes, such as:

the Canadian Electrical Code, Part 1; ANSI requirements; and NPFA 70 (NEC).

Microinverter Safety

WARNING: Risk of

skin burn.

The chassis of the Enphase Microinverter is the heat sink. Under normal operating conditions, the

temperature could be 20° C above ambient, but under extreme conditions the microinverter can

reach a temperature of 90° C. To reduce risk of burns, use caution when working with

microinverters.

DANGER: Risk of

fire.

The DC conductors of the PV module must be labeled “PV Wire” or “PV Cable” when paired with

the Enphase Microinverter.

DANGER: Risk of

electric shock. Risk

of fire.

Only qualified personnel may connect the Enphase Microinverter to the utility grid.

Do not attempt to repair the Enphase Microinverter; it contains no user-serviceable parts. If it fails,

contact Enphase to obtain a return merchandise authorization (RMA) number and start the

replacement process. Tampering with or opening the Enphase Microinverter will void the warranty.

WARNING: Risk of

equipment damage

Install the microinverter under the PV module to avoid direct exposure to rain, UV, and other

harmful weather events. Always install the microinverter bracket side up. Do not mount the

microinverter upside down. Do not expose the AC or DC connectors (on the Enphase Q Cable, PV

module, or the microinverter) to rain or condensation before the connectors are mated.

The maximum open circuit voltage of the PV module must not exceed the specified maximum input

DC voltage of the Enphase Microinverter.

IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation

Microinverter Safety

WARNING: Risk of

equipment damage

You must match the DC operating voltage range of the PV module with the allowable input voltage

range of the Enphase Microinverter.

The Enphase Microinverter is not protected from damage due to moisture trapped in cabling

systems. Never mate microinverters to cables that have been left disconnected and exposed to wet

conditions. This voids the Enphase warranty.

The Enphase Microinverter functions only with a standard, compatible PV module with appropriate

fill-factor, voltage, and current ratings. Unsupported devices include smart PV modules, fuel cells,

wind or water turbines, DC generators, and non-Enphase batteries, etc. These devices do not

behave like standard PV modules, so operation and compliance are not guaranteed. These devices

may also damage the Enphase Microinverter by exceeding its electrical rating, making the system

potentially unsafe.

NOTES:

The Enphase Microinverter has field-adjustable voltage and frequency trip points that may need to

be set, depending upon local requirements. Only an authorized installer with the permission and

following requirements of the local electrical authorities should make adjustments.

Enphase Q Cable Safety

DANGER: Risk of

electric shock.

Do not install the Enphase Q Cable terminator while power is connected.

WARNING: Risk

of electric shock.

Risk of fire.

When stripping the sheath from the Q Cable, make sure the conductors are not damaged. If the

exposed wires are damaged, the system may not function properly.

Do not leave AC connectors on the Q Cable uncovered for an extended period. You must cover any

unused connector with a sealing cap.

Make sure protective sealing caps have been installed on all unused AC connectors. Unused AC

connectors are live when the system is energized.

WARNING:

Use the terminator only once. If you open the terminator following installation, the latching

mechanism is destroyed. If the latching mechanism is defective, do not use the terminator. Do not

circumvent or manipulate the latching mechanism.

When installing the Enphase Q Cable, secure any loose cable to minimize tripping hazard.

NOTES:

When looping the Enphase Q Cable, do not form loops smaller than 4.75”(12 cm) in diameter.

Provide support for the Enphase Q-Cable every 1.8m (6 feet).

If you need to remove a sealing cap, you must use the Enphase disconnect tool.

When installing the Enphase Q Cable and accessories, adhere to the following:

•Do not expose the terminator cap or cable connections to directed, pressurized liquid (water

jets, etc.).

•Do not expose the terminator or cable to continuous immersion.

•Do not expose the terminator cap or cable connections to continuous tension (e.g., tension due

to pulling or bending the cable near the connection).

•Use only the connectors provided.

•Do not allow contamination or debris in the connectors.

•Use the terminator cap and cable connections only when all parts are present and intact.

•Do not install or use in potentially explosive environments.

•Do not allow the terminator to come into contact with open flame.

•Fit the terminator cap using only the prescribed tools and in the prescribed manner.

•Use the terminator to seal the conductor end of the Enphase Q Cable; no other method is

allowed.

IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation

PV Rapid Shutdown Equipment (PVRSE)

This product is UL Listed as PV Rapid Shut Down Equipment and conforms with NEC-2014 and NEC-2017 section

690.12 and C22.1-2015 Rule 64-218 Rapid Shutdown of PV Systems, for AC and DC conductors, when installed

according to the following requirements:

•Microinverters and all DC connections must be installed inside the array boundary. Enphase further requires

that the microinverters and DC connections be installed under the PV module to avoid direct exposure to

rain, UV, and other harmful weather events.

•The array boundary is defined as 305 mm (1 ft.) from the array in all directions, or 1 m (3 ft.) from the point

of entry inside a building.

This rapid shutdown system must be provided with an initiating device and (or with) status indicator which must be

installed in a location accessible to first responders, or it must be connected to an automatic system which initiates

rapid shutdown upon the activation of a system disconnect or activation of another type of emergency system.

The initiator shall be listed and identified as a disconnecting means that plainly indicates whether it is in the “off” or

“on” position. Examples are:

•Service disconnecting means

•PV system disconnecting means

•Readily accessible switch or circuit breaker

The handle position of a switch or circuit breaker is suitable for use as an indicator. Refer to NEC or CSA C22.1-2015

for more information.

Additionally, in a prominent location near the initiator device, a placard or label must be provided with a permanent

marking including the following wording:

’PHOTOVOLTAIC SYSTEM EQUIPPED WITH RAPID SHUTDOWN’ The term ‘PHOTOVOLTAIC’ may be replaced

with ‘PV.’

The placard, label, or directory shall be reflective, with all letters capitalized and having a minimum height of 9.5 mm

(3/8“) in white on red background.

IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation

The Enphase IQ System

The Enphase IQ System includes:

•EnphaseIQ 7™v, IQ 7+™, IQ 7A™ and IQ 7X™Micros The smart grid ready IQ Series Micros

convert the DC output of the PV module into grid-compliant AC power.

•Enphase IQ Envoy™(ENV-IQ-AM1-240) The Enphase IQ Envoy is a communication device that

provides network access to the PV array. The IQ Envoy collects production and performance data

from the Enphase IQ Microinverters over on-site AC power lines and transmits the data to

Enlighten through an Internet or cellular modem connection. The IQ Envoy is capable of

monitoring up to 600 Enphase IQ Microinverters and up to 39 Enphase IQ Batteries. For details,

refer to Enphase IQ Envoy Installation and Operations Manual.

NOTE: All 208 VAC installations require that you use the Enphase IQ Envoy to commission

the Enphase Microinverters to propagate correct grid profile settings for 208 VAC trip points.

•Enphase Enlighten™web-based monitoring and management software. Installers can use

Enlighten Manager to view detailed performance data, manage multiple PV systems, and

remotely resolve issues that might impact system performance. Find out more at

enphase.com/enlighten.

•Enphase Installer Toolkit™mobile app for iOS and Android devices. It allows installers to

configure the system while onsite, eliminating the need for a laptop and improving installation

efficiency. You can use the app to:

oConnect to the IQ Envoy over a wireless network for faster system setup and

verification

oView and email a summary report that confirms a successful installation

oScan device serial numbers and sync system information with Enlighten monitoring

software

•Enphase Q Aggregator (Q-BA-3-1P-60) Aggregates up to three fully populated 20A branch

circuits and supports solar arrays of up to 11.5kWac with a single rooftop aggregator

•Enphase IQ Battery™ (IQ6PLUS-B1200-LL-I-US00-RV1)

•Enphase Field Wireable connectors (Q-CONN-10F and Q-CONN-10M) Make connections

from any Q Cable, or open Field Wireable connector.

This manual describes the safe installation and operation of the Enphase Microinverter.

NOTE: To ensure optimal reliability and to meet warranty requirements, the Enphase

Microinverter must be installed according to the instructions in this manual.

IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation

How the Enphase IQ Series Micros Work

The Enphase Microinverter maximizes energy production by using a sophisticated Maximum Power Point

Tracking (MPPT) algorithm. Each Enphase Microinverter individually connects to one PV module in your

array. This configuration enables an individual MPPT to control each PV module, ensuring that maximum

power available from each PV module is exported to the utility grid regardless of the performance of the

other PV modules in the array. While an individual PV module in the array may be affected by shading,

soiling, orientation, or PV module mismatch, each Enphase Microinverter ensures top performance for its

associated PV module.

System Monitoring

Once you install the Enphase IQ Envoy and provide an internet connection through a broadband router or

modem, the Enphase IQ Microinverters automatically begin reporting to Enlighten. Enlighten presents

current and historical system performance trends and informs you of PV system status.

Optimal Reliability

Microinverter systems are inherently more reliable than traditional inverters. The distributed nature of a

microinverter system ensures that there is no single point of system failure in the PV system. Enphase

Microinverters are designed to operate at full power at ambient temperatures as high as 65C (150F).

Ease of Design

PV systems using Enphase Microinverters are very simple to design and install. You will not need string

calculations or cumbersome traditional inverters. You can install individual PV modules in any

combination of PV module quantity, type, age and orientation. Each microinverter quickly mounts on the

PV racking, directly beneath each PV module. Low voltage DC wires connect from the PV module directly

to the co-located microinverter, eliminating the risk of personnel exposure to dangerously high DC

voltage.

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