Huayu HY-1000-Plus User manual

Installation and Operation Manual
HY-1000-Plus & HY-800-Plus
For our home energy independence.
Huayu(Ningbo)New Energy Technologies Co., Ltd.

1. Introduction 

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02
Company Profile  01
02
Contents
1.1 Prefix
1.2 Grid-tied PV System


4. Installation 04


04Additional Installation Components
 04Required Parts and Tools
 04Simple to Install
 05Installation Procedure




05Step 1 - Install AC Branch Circuit Junction Box


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07
Step 2 - Attach Microinverter to Racking System or the PV Module Frame
Step 3 - Create an Installation Map
Step 4 - Connect the Microinverter in Parallel
Step 5 - Install an AC Cable Protective End Cap at the End of AC Cable
Step 6 - Connect Microinverter to PV Modules
03
2. Safety Instruction
3. FCC Compliance 03
 02
02
1.3 How to Use This Manual
 021.4 Label
5. Commissioning 

08
6. Operating Instructions  08
7. Troubleshooting Maintenance
8. Specification
 09
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Huayu(Ningbo)New Energy Technologies Co.,Ltd. All rights reserved.
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01
Company Profile
Huayu New Energy is dedicated to be a world’s leading “Safe & Smart Solar Energy” supplier for homeowners.
“For our home energy independence” is a vision deserved for all people who truly trust clean energy is the future for
our children, whatever you’re from rich families or low-income families.
Since the establishment of Huayu New Energy, we specialize in R&D of Safe Module-Level Solar Solution and Smart
Energy Storage Solution which are controlled by Huayu Portal Management Platform with over 10 languages, these
innovative technologies are developed to configure a Smart Distributed Solar System with bidirectional flow of energy
which no doubt is the basic infrastructure of our future Energy Internet.
Featured with “Renewable, Distributed, Interconnected, Open & Intelligent”, Energy Internet is a must for human
beings in 21st century to realize a de-monopolistic & de-centralized sustainable power supply system across the
globe. Huayu New Energy was born to be the leader of “Safe & Smart” distributed energy solution and play an
irreplaceable role for the most exciting renewable energy revolution in human history.
Till today, we have delivered thousands of Huayu microinverters(300-2000W)and Huayu storage inverters(3-12kW)for
global families and small businesses in Europe, North America, LATAM, South East Asia, Middle East and Africa.
Together with us, to be a part of game changer for “Safe & Smart Energy” via “Honesty, Trust, Teamwork & Sharing”.

02
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.
1. Introduction
1.1 Prefix
1.2 Grid-tied PV System
1.3 How to Use This Manual
1.4 Label
Thank you for choosing the HY-1000/800-Plus microinverter from Huayu. We hope our products will meet your need
for renewable energy. Meantime, we appreciate your feedback regarding our products.
Grid-tied PV system consists of PV panels, grid-tied inverter and junction boxes. The DC output from the PV panels is
converted into AC energy and feedback to the grid through the HY-1000/800-Plus. HY-1000/800-Plus PV microinverter
contain isolation transformer with basic insulation between PV input and AC grid output.
This manual provides detailed product information and installation instructions for the HY-1000/800-Plus microinverter.
Please read through this manual before installation and operation.
Label is located on the side of the inverter. The information on the label includes technical data as well as type and
serial number of the device. Safety instructions are listed and explained below:
Huayu(Ningbo)New Energy Technologies Co.,Ltd. All rights reserved.
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Danger!
The term “danger” describes an issue which, if ignored can cause personal injury.
CE mark
The product complies with essential requirements of relevant directives of EU
Attention!
With the term “attention” a circumstance is listed which may cause property damage
if disregarded.
Instructions for use!
Under “Instructions for Use“, it is pointed out that installation and operating instructions
are to be read and understood before installation or repair.
Caution, hot surface!
Under “Caution, hot surface”, it should be noted that surfaces of equipment may be
hot and create a burn hazard.
Special disposal instructions!
With “Note Separate Disposal”, it is pointed out that this product may not be disposed
of with normal garbage. An improperly conducted disposal can lead to damage to the
environment.

2. Safety Instruction
3. FCC Compliance
Huayu(Ningbo)New Energy Technologies Co.,Ltd. All rights reserved.
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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, the user
is encouraged to try to correct the interference by one or more of the following measures:
03
WHEN THE PHOTO VOLTAIC ARRAY IS EXPOSED TO LIGHT, IT SUPPLIES A DC VOLTAGE TO THE
MICROINVERTER.
PLEASE READ THIS MANUAL BEFORE INSTALLATION. ANY DAMAGE TO THE PRODUCT DUE TO NOT
FOLLOWING THIS MANUAL IS NOT COVERED BY THE WARRANTEE.
ALL THE INSTALLATION SHOULD BE DONE BY CERTIFIED ELECTRICIAN.
BESIDES THE CABLE CONNECTORS, NOTHING INSIDE THE INVERTER SHOULD BE MODIFIED.
ALL INSTALLATION SHOULD FOLLOW THE LOCAL ELECTRIC CODES. FURTHER PROTECTION ON THE
AC WIRING FROM THE INVERTERS SHOULD BE PROVIDED AND MAY BE REQUIRED BY LOCAL AND
NATIONAL WIRING REGULATIONS. THIS PROTECTION IS LIKELY TO INCLUDE RESIDUAL CURRENT
DEVICES, EARTH FAULT MONITORS AND CIRCUIT BREAKERS. THIS PRODUCT MAY CAUSE AC
CURRENT WITH A DC COMPONENT. IF A RESIDUAL CURRENT-OPERATED PROTECTIVE DEVICE
(RCD) OR A MONITORING DEVICE (RCM) IS USED FOR PROTECTION IN CASE OF DIRECT OR
INDIRECT CONTACT, ONLY AN RCD OR RCM OF TYPE B IS ALLOWED ON THE AC SIDE OF THIS
PRODUCT.
NEVER DISCONNECT PV MODULE FROM THE MICROINVERTER WITHOUT FIRST ISOLATING THE AC
MAINS. ALL PV CONNECTORS AND AC CONNECTORS ARE FORBIDDEN TO BE DISCONNECTED
UNDER LOAD BEFORE SWITCHING OFF THE CIRCUIT BREAKER ON THE AC BRANCH.
PLEASE CONTACT AUTHORIZED SERVICE AGENTS FOR ANY SERVICE WORK.
HY-1000/800-PLUS IS A GRID-TIED SOLAR INVERTER. IT MAY REQUIRE APPROVAL FROM LOCAL
UTILITY COMPANY TO CONNECT IT TO THE POWER GRID.
HY-1000/800-PLUS DOES NOT INCLUDE COMPONENTS THAT CAN BE SERVED BY CUSTOMERS.

An AC connection junction box
Mounting hardware suitable for module racking system
Sockets and wrenches for mounting hardware
Continuous grounding conductor and grounding washers
A Phillips screwdriver
A torque wrench
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Additional Installation Components
Required Parts and Tools
Simple to Install
Perform all electrical installations in accordance with local electrical codes.
Be aware that only qualified professionals should install and/or replace microinverter.
Before installing or using a microinverter, please read all instructions and warnings in the technical
documents and on the microinverter itself as well as on the PV array.
Be aware that installation of this equipment includes the risk of electric shock.
Do not touch any live parts in the system, including the PV array, when the system has been connected
to the electrical grid.
Strongly recommend to install surge protection devices in the dedicated combiner box.
4. Installation
Huayu(Ningbo)New Energy Technologies Co.,Ltd. All rights reserved.
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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.
A PV system by microinverter is simple to install. Each microinverter easily mounts on the PV racking system,
directly beneath the PV module. Low voltage DC wires connect from the PV module directly to the microinverter,
eliminating the risk of high DC voltage. Installation MUST comply with local regulations and technical rules.
Special Statement! An AC GFCI device should not be used to protect the dedicated circuit to the microinverter
even though it is an outside circuit. None of the small GFCI devices(5~30mA) are designed for back feeding
and will be damaged if so. In a similar manner, AC AFCIs have not been evaluated for back feeding and may
be damaged if back feed with the output of a PV inverter.
AC Male and Female Interconnection Connectors(offered separately)
Sealing end caps(offered separately)
In addition to your PV array and its associated hardware, the following items are needed for installation:
You can install individual PV modules in any combination of Module quantity and orientation, different type and
power rate. The Ground wire (PE) of the AC cable is connected to the chassis inside of the microinverter, potentially
eliminating the installation of grounding wire(check local regulation).
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Step 1- Install AC Branch Circuit Junction Box
If the PLC signal is weak, it may be significantly improved by moving the data logger to closer to the
microinverter arrays, and/or farther away from other interferers, and/or install a signal filter (LCF) to reduce
the interference to PLC communication.
Note:
Huayu(Ningbo)New Energy Technologies Co.,Ltd. All rights reserved.
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Huayu monitoring data logger connects the microinverter to the Huayu Portal server via the cloud, allowing for
collection of production and other data useful in system monitoring and trouble shooting. Users can monitor
and manage the microinverter through corresponding website or APP.
05
Wiring colour code can be different according to local regulation, check all the wires of the installation
before connecting them to the AC cable. Wrong cabling can damage irreparably microinverter, such an
issue is not covered by the warranty.
Installation Procedure
Install an appropriate junction box at a suitable location on the PV racking system(typically at the end of
a branch of modules).
Connect the open wire end of the AC cable into the junction box using an appropriate gland or strain
relief fitting.
Wire the conductors of the AC(127/220/230): L - red; N - black; PE - yellow green Wire the conductors of
the AC(208/240): L1- red; L2 - black; PE - yellow green.
Connect the AC branch circuit junction box to the point of utility Interconnection.
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Prior to installing any of microinverter, verify that the utility voltage at the point of common connection
matches the voltage rating on microinverter label.
Do not place the microinverter (including DC and AC connectors) where exposed to the sun, rain or
snow,even gap between modules. Allow a minimum of 3/4 inch(2cm). between roof and bottom of the
microinverter to allow proper air flow.
Step 2- Attach Microinverter to Racking System or the PV Module Frame
Huayu(Ningbo)New Energy Technologies Co.,Ltd. All rights reserved.
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Create a paper installation map to record microinverter serial numbers and position in the array.
Step 3- Create an Installation Map
Step 4- Connect the Microinverter in Parallel
Mark the location of the microinverter on the rack, with respect to the PV module junction box or any
other obstructions.
Mount one microinverter at each of these locations by recommended hardware.
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Peel the removable serial number label from each microinverter and affix it to the respective location on
the paper installation map.
Fill in the monitoring system account information to the installation map
Always keep a copy of the installation map for your records.
2
Plug the male AC connector of Microinverter into the female connector to get it connected. AC connector
interface is as follows.
1
Check Microinverter technical data for the maximum allowable number of Microinverters on each AC
branch circuit.

Step 5- Install an AC Cable Protective End Cap at the End of AC Cable
Step 6- Connect Microinverter to PV Modules
2
First connect the positive DC wire from the PV module to the negatively marked DC connector (male pin) of the
HY-1000/800-Plus. Then connect the negative DC wire from the PV module to the positively marked DC connector
(female socket) of the HY-1000/800-Plus. Repeat for all remaining PV modules using one HY-1000/800-Plus for
each module. All PV modules shall be ungrounded.
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Mount the PV modules above their corresponding HY-1000/800-Plus. Each HY-1000/800-Plus comes with two
oppositely sexed DC connectors.
Huayu(Ningbo)New Energy Technologies Co.,Ltd. All rights reserved.
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DO NOT exceed maximum number of microinverter in an AC branch circuit. For 12awg trunk cable, each
HY-1000/800-Plus AC branch circuit must be sourced from a dedicated branch circuit protected by a 20a
maximum breaker.
Make sure protective end caps have been installed on all unused ac connectors.Unused AC HY-1000/800-
Plus wire harness connectors are live when the system is energized by the utility system.
Completely install all HY-1000/800-Plus and all system inter-wiring connections prior to installing the PV modules.
L(L1) N(L2)
PE
7.5
HY-1000/800-Plus

5. Commissioning
6. Operating Instructions
Huayu(Ningbo)New Energy Technologies Co.,Ltd. All rights reserved.
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CONNECT HY-1000/800-PLUS TO THE ELECTRICAL UTILITY GRID ONLY AFTER RECEIVING PRIOR
APPROVAL FROM THE UTILITY COMPANY.
BE AWARE THAT ONLY QUALIFIED PERSONNEL CAN CONNECT HY-1000/800-PLUS TO THE ELECTRICAL
UTILITY GRID.
ENSURE THAT ALL AC AND DC WIRING IS CORRECT. ENSURE THAT NONE OF THE AC AND DC WIRES
IS PINCHED OR DAMAGED. ENSURE THAT ALL JUNCTION BOXES ARE PROPERLY CLOSED
Following these steps to commission the HY-1000/800-Plus PV system:
The HY-1000/800-Plus is powered on when sufficient DC voltage from the module is applied.
The status LED will start flashing after sufficient DC power is applied as an indication that the HY-1000/800-Plus is live.
Status: Standby
Status: Producing Power
The LED light is on by 2 second, and off by 2 seconds
Red: in error.
Orange: no error, but not communicating to HY-MDL
Green: no error, and communicating to HY-MDL
The LED light is on by 1 second, and off by 1 second.
Orange: not communicating to HY-MDL
Green: communicating to HY-MDL
Status: Grounding Fault
The LED light is in solid red color.
In case of fault, HY-1000/800-Plus has multiple protective functions and stops output power.
The fault message may be sent to a connected HY-MDL monitoring data logger through power line communication.
The error message is displayed on the screen of HY-MDL monitoring data logger by a 16-bit error code.
Turn on the AC disconnects or circuit breakers on each HY-1000/800-Plus AC branch circuit.
Turn on the main utility-grid AC circuit breaker. Your system will start producing power after a few minutes.
The HY-1000/800-Plus will start to send performance data over the power lines using power line communication
(PLC) to the HY-MDL. The time required for each HY-1000/800-Plus in the system to communicate to the HY-MDL
will vary with the number of HY-1000/800-Plus in the system.
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