APsystems EZ1 Series User manual

APsystems EZ1 series Microinverters
(For EMEA)
APsystems Microinverter User Manual
©All Rights Reserved
ALTENERGY POWER SYSTEM Inc.
emea.APsystems.com
APsystems
Karspeldreef 8, 1101 CJ, Amsterdam, The Netherlands
EMAIL: [email protected]
APsystems
22 Avenue Lionel Terray 69330 Jonage France
EMAIL:[email protected]
Please scan this QR code to have
access to our APPs and Products
Information.

APsystems Microinverter EZ1 series User manual
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Table of Contents
1. Important Safety Instructions.......................................................................................... 2
1.1 Safety Instructions......................................................................................................................................2
1.2 Radio Interference Statement................................................................................................................ 3
1.3 Symbols in lieu of words......................................................................................................................... 4
2. APsystems Microinverter System Introduction...................................................... 5
3. APsystems Microinverter EZ1 series Introduction................................................ 7
4. APsystems Microinverter System Installation.........................................................8
4.1 Additional accessories supplied by APsystems ................................................................................. 8
4.2 Installation Procedures ............................................................................................................................ 8
4.2.1 Step 1 - Verify that grid voltage matches microinverter rating.........................................8
4.2.2 Step 2 - Install the microinverters in proper position......................................................... 8
4.2.3 Step 3 - Connect APsystems Microinverters to the PV Modules.....................................8
4.2.4 Step 4 - Connect the APsystems microinverter to EU power cord.................................9
4.2.5 Step 5 - Cable Connection ......................................................................................................... 9
5.Install and Use AP EasyPower.........................................................................................10
5.1 Install APP..................................................................................................................................................10
5.2 Connect the APsystems Microinverters ............................................................................................ 10
5.3 Monitor & Control................................................................................................................................... 11
6. Troubleshooting.................................................................................................................... 12
6.1 Status Indications and Error Reporting..............................................................................................12
6.1.1 Start up LED...................................................................................................................................12
6.1.2 Operation LED...............................................................................................................................12
6.1.3 GFDI Error...................................................................................................................................... 12
6.2 Trouble Shooting Guide........................................................................................................................ 12
6.3 APsystems Technical Support ............................................................................................................. 12
6.4 Maintenance............................................................................................................................................. 12
7. Replace a microinverter....................................................................................................13
8. Technical Data....................................................................................................................... 14
8.1 EZ1 series Microinverter Datasheet.................................................................................................... 15
9. EZ1 Accessory....................................................................................................................... 16
9.1 Dimensions ................................................................................................................................................ 16
9.2 Single Device ........................................................................................................................................... 17
9.3 Multiple Devices...................................................................................................................................... 17

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1. 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.
1.1 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.

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1. Important Safety Instructions
1.2 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:
A) Increase the separation between the Microinverter and the receiver
B) 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.

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1. Important Safety Instructions
1.3 Symbols in lieu of words
Trademark.
Caution, risk of electric shock.
Caution, hot surface.
Symbol for the marking of electrical and electronics devices according to Directive 2002/96/EC.
Indicates that the device, accessories and the packaging must not be disposed as unsorted
municipal waste and must be collected separately at the end of the usage. Please follow Local
Ordinances or Regulations for disposal or contact an authorized representative of the
manufacturer for information concerning the decommissioning of equipment.
CE mark is attached to the solar inverter to verify that the unit follows the provisions of the
European Low Voltage and EMC Directives.
Refer to the operating instructions.
Qualified personnel
Person adequately advised or supervised by an electrically skilled person to enable him or her to
perceive risks and to avoid hazards which electricity can create. For the purpose of the safety
information of this manual, a "qualified person" is someone who is familiar with requirements for
safety, electrical system and EMC and is authorized to energize, ground, and tag equipment,
systems, and circuits in accordance with established safety procedures. The inverter and
photovoltaic system may only be commissioned and operated by qualified personnel.

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2. 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
Figure 1
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

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2. APsystems Microinverter System Introduction
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

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3. 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 current 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

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4. APsystems Microinverter System Installation
4.1 Additional accessories supplied by APsystems
EZ1 power cord
4.2 Installation Procedures
4.2.1 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.
4.2.2 Step 2 - Install the microinverters in proper position
a. Mark the location of the microinverter on the rack or balcony balustrade, with respect to the proper position.
b. Mount the microinverter with M8 screw or other ways to reliably fix the inverter.
Figure 2
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.
4.2.3 Step 3 - Connect APsystems Microinverters to the PV Modules
Figure 3

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4. APsystems Microinverter System Installation
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.
Figure 4
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.
4.2.4 Step 4 - Connect the APsystems microinverter to EU power cord
Insert the microinverter AC connector into the power cord connector.
Figure 5
4.2.5 Step 5 - Cable Connection
Insert the power cord into the socket.
Figure 6

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5.Install and Use AP EasyPower
5.1 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
Android: 7.0 and up.
5.2 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.
Figure 7
Method 2
Open https://apsystems.com
Select your region
Click the tab menu “Apps” below “Products”
Download and install

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5.Install and Use AP EasyPower
5.3 Monitor & Control
Figure 8
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.
For Connection and monitoring operation mode, please refer to the AP EasyPower User Manual.
Setting Icon
Alarm Icon

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6. Troubleshooting
Users can use the following troubleshooting steps if the PV system does not operate correctly:
6.1 Status Indications and Error Reporting
Assuming they are easily accessible and visible, Operation LEDs can give a good indication of the microinverters
status
6.1.1 Start up LED
Ten short green blinks when DC power is first applied to the Microinverter indicates a successful Microinverter
startup.
6.1.2 Operation LED
Flashing Slow Green (5 sec. gap) - Producing power and the Microinverter is in normal working status.
Flashing Slow Red (5 sec. gap) - The Microinverter is in protection status or disconnected from grid.
6.1.3 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.
6.2 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.
6.3 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.
6.4 Maintenance
APsystems microinverters do not require any specific regular maintenance.

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7. Replace a microinverter
Follow the procedure to replace a failed APsystems Microinverter
A. 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.
B. 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.
C. Insert the microinverter AC connector into the power cord connector.
D. Connect the inverter to grid and verify proper operation of the replacement Microinverter.

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8. 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.
2023/05/31 Rev1.0

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8.1 EZ1 series Microinverter Datasheet
Model
EZ1-M
EZ1-H
Input Data (DC)
Recommended PV Module Power (STC) Range
300Wp-730Wp+
410Wp-760Wp+
Peak Power Tracking Voltage
28V-45V
Operating Voltage Range
16V-60V
Maximum Input Voltage
60V
Maximum Input Current
20A x 2
Isc PV
25A x 2
Maximum Inverter Backfeed Current To Array
0A
Output Data (AC)
Maximum Continuous Output Power
600VA(3) / 799VA
960VA
Nominal Output Voltage/Range(1)
230V/184-253V
Nominal Output Current
2.6A(3) / 3.5A
4.2A
Nominal Output Frequency/ Range(1)
50Hz/47.5Hz-51.5Hz
Power Factor
0.99
Inrush Current
11.92A
Maximum Output Fault Current
34A
Maximum Output Overcurrent Protection
10A
Efficiency
Peak Efficiency
97.3%
Nominal MPPT Efficiency
99.5%
Night Power Consumption
20mW
Mechanical Data
Operating Ambient Temperature Range(2)
-40 °C to +65 °C
Storage Temperature Range
-40 °C to +85 °C
Dimensions (W x H x D)
263mm x 218mm x 36.5mm
263mm x 218mm x 37mm
Weight
2.8kg
3kg
DC Connector Type
Stäubli MC4 PV-ADBP4-S2&ADSP4-S2
Cooling
Natural Convection - No Fans
Enclosure Environmental Rating
IP67
Pollution Degree Classification
PD3
Operate Relative Humidity Range
4%~100%
Maximum Altitude
<2000m
Overvoltage Category
OVC Il For PV Input Circuit, OVC Ill For Mains Circuit
Power Cord(Optional)
Wire Size
1.5mm²
Cable Length
5M as default
Plug Type
Schuko
Features
Communication
Built-in Wi-Fi and Bluetooth
Maximum Units Can Be Connected(4)
2
Isolation Design
High Frequency Transformers, Galvanically Isolated
Energy Management
AP EasyPower APP
Warranty
12 Years Standard; 20 Years Optional
Compliances
Safety, EMC & Grid Compliances
EN 62109-1/-2; EN 61000-1/-2/-3/-4; EN 50549-1; DIN V VDE V 0126-1-1; VFR;
UTE C15-712-1; CEI 0-21; UNE 217002; NTS; RD647; VDE-AR-N 4105
(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.
© All Rights Reserved
Specifications subject to change without notice please ensure you are
using the most recent update found at web : emea.APsystems.com

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9. EZ1 Accessory
9.1 Dimensions
Figure 9

APsystems Microinverter EZ1 series User manual
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9. EZ1 Accessory
9.2 Single Device 9.3 Multiple Devices
Figure 10
1
2
3
4
5
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)
1 2 3 4 5