APsystems EZ1 Series Microinverters User Manual

APsystems EZ1 Series Microinverters

Product Information

• The APsystems Microinverter is a device designed for the efficient conversion of direct current (DC) power from solar panels into alternating current (AC) power for use in residential and commercial applications. The EZ1 series Microinverters are specifically designed for the EMEA region.
• The microinverters are manufactured by ALTENERGY POWER SYSTEM Inc., a leading provider of renewable energy solutions. APsystems has two offices in the EMEA region, one in Amsterdam, The Netherlands, and another in Jonage, France.
• The microinverters come with a comprehensive user manual that provides important safety instructions, installation procedures, troubleshooting guide, and technical data.

Product Usage Instructions

1. Important Safety Instructions
   Read and follow the safety instructions provided in the user manual before installing or using the microinverters. These instructions ensure safe operation and prevent accidents.

2. APsystems Microinverter System Introduction
   Familiarize yourself with the APsystems Microinverter system and its components. This section provides an overview of the system and its functionalities.

3. APsystems Microinverter EZ1 series Introduction
   Learn about the specific features and benefits of the EZ1 series Microinverters designed for the EMEA region. This section highlights the advantages of using these microinverters for your solar power system.

4. APsystems Microinverter System Installation
   Follow the installation procedures provided in this section to properly install the microinverters. It includes information on additional accessories supplied by APsystems and step-by-step instructions for the installation process.

5. Install and Use AP EasyPower
   Install the AP EasyPower mobile application to monitor and control the microinverters. This section explains how to install the app, connect the microinverters, and utilize the monitoring and control features provided by the application.

6. 6. Troubleshooting
   If you encounter any issues with the microinverters, refer to the troubleshooting guide in this section. It provides solutions to common problems and outlines the technical support options available from APsystems.

7. Replace a Microinverter
   If a microinverter needs to be replaced, follow the instructions provided in this section. It guides you through the process of replacing a faulty microinverter with a new one.

8. Technical Data
   Refer to the technical data section for detailed specifications of the EZ1 series Microinverters. It includes information on power output, efficiency, input voltage range, and other relevant technical details.
   For more specific information about the EZ1 series Microinverters refer to the EZ1 series Microinverter Datasheet provided in the user manual.

Important Safety Instructions

• This manual contains important instructions to follow during installation and maintenance of the APsystems Photovoltaic Grid-connected Microinverter. To reduce the risk of electrical shock and ensure a safe installation and operation of the APsystems Microinverter, the following symbols appear throughout this document to indicate dangerous conditions and important safety instructions.
• Specifications are subject to change without notice. Please ensure you are using the most recent update found at https://emea.apsystems.com/resources/library/
  WARNING:
  This indicates a situation where failure to follow instructions may cause a serious hardware failure or personnel danger if not applied appropriately. Use extreme caution when performing this task.
  NOTICE:
  This indicates information that is important for optimized microinverter operation. Follow these instructions closely.

Safety Instructions

• Perform all electrical installations in accordance with local electrical codes.
• Before installing or using the APsystems Microinverter, please read all instructions and cautionary markings in the technical documents and on the APsystems Microinverter system and the solar array.
• Do NOT disconnect the PV module from the APsystems Microinverter without first disconnecting the AC power.
• Be aware that the body of the APsystems Microinverter is the heat sink and can reach a temperature of 80°C. To reduce risk of burns, do not touch the body of the Microinverter.
• Do NOT attempt to repair the APsystems Microinverter. If the microinverter is suspected to be faulty, please contact your local APsystems Technical Support to start troubleshooting and obtain a RMA (Return Merchandise Authorization) number to start the replacement process if needed. Damaging or opening the APsystems Microinverter will void the warranty.

Radio Interference Statement

• EMC Compliance：The APsystems Microinverter can radiate radio frequency energy. If not installed and used in accordance with the instructions, it may cause harmful interference to radio communication.
• APsystems Microinverter complies with EMC regulations, which are designed to provide reasonable protection against harmful interference in a residential installation.
• Nonetheless, if the Microinverter does cause harmful interference to radio or television reception, you are encouraged to try to correct the interferences by one of more of the following measures:
  •  Increase the separation between the Microinverter and the receiver
  • Connect the Microinverter into an outlet on a circuit different from that to which the receiver is connected
• If none of the recommendations suggested above bring significant improvement in terms of interferences, please contact your local APsystems Technical Support.

Symbols in lieu of words

APsystems Microinverter System Introduction

• The EZ1 series APsystems Microinverter is used in balcony and DIY systems which comprised of the below key elements:
  • PV modules
  •  Power Cord
  • EZ1 series microinverter
  • Router
  • Cell phone

• EZ1 series micorinverters have 2 input channels with independent MPPT and high input current and output power to adapt to today’s larger power module. Users could directly connect to the Wi-Fi version of EZ1 with their cell phones through Bluetooth and get the real-time data of the solar systems. Besides direct connection, Wi-Fi version of EZ1 could also connect to a router through Wi-Fi and send data to cloud servers for remote monitoring.
• Through an AC extension cable provided by APsystems, EZ1 could be plugged into a socket and start output energy, truly easy and convenient grid connection

This integrated system improves safety; maximizes solar energy harvest; increases system reliability, and simplifies solar system design, installation, maintenance, and management.

Safety with APsystems Microinverters

• In a typical string inverter installation, PV modules are connected in series. The voltage adds-up to reach high voltage value (from 600Vdc up to 1000Vdc) at the end of the PV string. This extreme high DC voltage brings a risk of electrical shocks or electrical arcs which could cause fire.
• When using an APsystems microinverter, PV modules are connected in parallel. Voltage at the back of each PV module never exceeds PV modules Voc, which is lower than 60Vdc for most of PV modules used with
• APsystems microinverters. This low voltage is considered “safe to touch” by fire departments and negates the risk of electrical shock, electrical arcs and fire hazards.

APsystems Microinverters maximize PV energy production
Each PV module has individual Maximum Peak Power Tracking (MPPT) control, which ensures that the maximum power is produced to the utility grid regardless of the performance of the other PV modules in the array. When PV modules in the array are affected by shade, dust, different orientation, or any situation in which one module underperforms compared with the other units, the APsystems Microinverter ensures top performance from the array by maximizing the performance of each module individually within the array.

More reliable than centralized or string inverters
The distributed APsystems Microinverter system ensures that no single point of system failure exists across the PV system. APsystems Microinverters are designed to operate at full power at ambient outdoor temperatures of up to 65 deg C (or 149 F). The inverter case is designed for outdoor installation and complies with the IP67 environmental enclosure rating.

Simple to install

• EZ1 series micorinverters have 2 input channels with independent MPPT and high input current and output power to adapt to today’s larger power module. Users could directly connect to the Wi-Fi version of EZ1 with their cell phones through Bluetooth and get the real-time data of the solar systems. Besides direct connection, Wi-Fi version of EZ1 could also connect to a router through Wi-Fi and send data to cloud servers for remote monitoring.
• Through an AC extension cable provided by APsystems, EZ1 could be plugged into a socket and start output energy, truly easy and convenient grid connection

APsystems Microinverter EZ1 series Introduction

Key Product Feature:

• One microinverter connects to two modules with independent MPPT
• Max output power reaching 600VA or 799VA for different models
• High Input cuarrent to adapter to large modules
• Maximum reliability, IP67
• Built in Wi-Fi and Bluetooth
•  Safety protection relay integrated
• Dedicated for balcony and DIY systems
• Directly plug into wall socket

APsystems Microinverter System Installation

Additional accessories supplied by APsystems
EZ1 power cord

Installation Procedures

1. Step 1 – Verify that grid voltage matches microinverter rating
   Do NOT carry the microinverter by the AC cable. This may cause the AC cable to partially or fully disconnect from the unit, resulting in no or poor operation.

2. Step 2 – Install the microinverters in proper position

   • Mark the location of the microinverter on the rack or balcony balustrade, with respect to the proper position.
   • Mount the microinverter with M8 screw or other ways to reliably fix the inverter.

Install the microinverters in proper position to avoid direct exposure to rain, UV or other harmful weather events. Allow a minimum of 1.5 cm (3/4’’) below and above the casing of the microinverter to allow proper air flow. The racking must be properly grounded as per local electrical code.

3. **Step 3 – Connect APsystems Microinverters to the PV Modules

**

  * When plugging in the DC cables, the microinverter should immediately blink green ten times. This will happen as soon as the DC cables are plugged in and will show that the microinverter is functioning correctly. This entire check function will start and end within 10 seconds of plugging in the unit, so pay careful attention to these lights when connecting the DC cables.

  * Each PV panel must be carefully connected to the same channel.
  * Make sure to not split positive and negative DC cables into two different input channels: microinverter will become damaged and warranty will not apply.

4. Step 4 – Connect the APsystems microinverter to EU power cord
   Insert the microinverter AC connector into the power cord connector.

5. Step 5 – Cable Connection
   Insert the power cord into the socket.

Install and Use AP EasyPower

Install APP
Please scan QR code below to have access to our products and APP catalogue, or click this link to download our APPs: https://file.apsystemsema.com:8083/apsystems/apeasypower/download.html .

iOS：

• Go to App Store
• Search “AP EasyPower”
•  Download and install
  iOS: 10.0 and up.

Android：

• Method 1
  • Go to Google Play Store
  • Search “AP EasyPower”
  • Download and install
• Method 2
  • Open https://apsystems.com
  • Select your region
  • Click the tab menu “Apps” below “Products”
  • Download and install

Connect the APsystems Microinverters
AP EasyPower offers two modes “Direct Connect Mode”and “Remote Mode” to monitor the device.

• Direct Connect Mode: APP connects to Bluetooth of the device, so that users can realize local monitoring and control of the device.
• Remote Mode: Login account, users can realize remote monitoring and control of the device.
  In the absence of Wi-Fi, users can monitor and control the device in direct connection mode.

Monitor & Control

• On this page, user can visualize
  Live Data: The real-time data of the device in current round, including the power, energy, running time, working status and the cloud status.

• Working status

  • Normal: The device is working normally.
  • Alarm: The device has alarms and you need to check it.

• Cloud status

  • Online: The device is connecting the cloud service through the internet.
  • Offline: The device is not connecting the cloud service through the internet, maybe the device is not connected the Wi-Fi or the router is down.
  • Benefits Overview: The lifetime energy produced by the device and the equivalent CO2 reduction.

• By pressing “alarm icon” to check the alarm information if the device status is alarm.

• By pressing “setting icon” to set the device. The setting page is shown below.

Troubleshooting

Users can use the following troubleshooting steps if the PV system does not operate correctly:

Status Indications and Error Reporting
Assuming they are easily accessible and visible, Operation LEDs can give a good indication of the microinverters status

1. Start up LED
   Ten short green blinks when DC power is first applied to the Microinverter indicates a successful Microinverter startup.

2. Operation LED

3. Flashing Slow Green (5 sec. gap) – Producing power and the Microinverter is in normal working status.

4. Flashing Slow Red (5 sec. gap) – The Microinverter is in protection status or disconnected from grid.

5. GFDI Error
   A solid red LED indicates the Microinverter has detected a Ground Fault Detector Interrupter (GFDI) error in the PV system. Please check if the DC inputs of the inverter are mistakenly connected to ground or contact your local APsystems Technical Support.

Trouble Shooting Guide
Professional Users can also refer to our Troubleshooting Guide (https://emea.apsystems.com/resources/library/, section libraries)for more in depth guidelines on how to troubleshoot and fix PV installations powered by APsystems microinverters.

APsystems Technical Support
The APsystems local Technical Support team is available to support professional installers in becoming familiar with our products and to troubleshoot installations when needed.
Do not attempt to repair APsystems Microinverters. Please contact your local APsystems Technical Support.

1. Never disconnect the DC wire connectors under load. Ensure that no current is flowing in the DC wires prior to disconnecting.
2. Always disconnect AC power before disconnecting the PV module wires from the APsystems Microinverter.
3. The APsystems Microinverter is powered by PV module DC power. AFTER disconnecting the DC power, when reconnecting the PV modules to the Microinverter, be sure to watch for the ten short green LED flashes.

Maintenance
APsystems microinverters do not require any specific regular maintenance.

Replace a microinverter

Follow the procedure to replace a failed APsystems Microinverter

• Disconnect the APsystems Microinverter from the PV Module, in the order shown below:
  1. Disconnect the inverter from grid
  2. Disconnect the PV module DC wire connectors from the microinverter.
  3. Remove the Microinverter from the PV array racking.
• Install a replacement Microinverter to the rack. Remember to observe the flashing green LED light as soon as the new Microinverter is plugged into the DC cables.
• Insert the microinverter AC connector into the power cord connector.
• Connect the inverter to grid and verify proper operation of the replacement Microinverter.

Technical Data

1. Be sure to verify that the voltage and current specifications of your PV module are compatible with the range allowed on APsystems Microinverter. Please check the microinverter datasheet.
2.  DC operating voltage range of the PV module must be within allowable input voltage range of the APsystems Microinverter.
3. The maximum open circuit voltage of the PV module must not exceed the specified maximum input voltage of the APsystems.

EZ1 series Microinverter Datasheet

1. Nominal voltage/frequency range can be extended beyond nominal if required by the utility.
2. The inverter may enter to power de-grade mode under poor ventilation and heat dissipation installation environment.
3. The factory setting could be 600VA as default and raise to 800VA after intallation according to the regulation adjustment.
4. For some countries it is limited to 1 because of the regulations.

EZ1 Accessory

Dimensions

Single Device

Multiple Devices

Power Cord

(Optional)

| AC Connector (Female)

(Optional)

| DC Male /Female Connector Cap

(Optional)

| DC Extension Cable

(Optional)

| AC T Connector

(Optional)

EZ1 EU Power Cord

(1.5mm²,5m)

| AC Connector(3C,17.5A,Female)| DC Male /Female Connector Cap(MC4)| 2m DC Extension Cable (MC4)| AC T Connector(3C,17.5A)

References

• Home - APsystems EMEA
• APsystems | The global leader in multi-platform MLPE technology
• file.apsystemsema.com:8083/apsystems/apeasypower/download.html

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