APsystems QT2-AU User Manual
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APsystems QT2-AU User Manual

Microinverter
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APsystems Microinverter User Manual
ALTENERGY POWER SYSTEM Inc.
aunz.APsystems.com
APsystems Australia
Suite 502, 8 Help Street, Chatswood NSW 2067 Australia
Tel: +61 (0)2 8034 6587
© All Rights Reserved
APsystems QT2-AU Microinverter
EMAIL: info.aunz@APsystems.com
(For Australia / New Zealand)
Please scan this QR code
to download our APPs or check
the link:
https://apsystems.com/qr-code/

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  • Page 1 APsystems Microinverter User Manual APsystems QT2-AU Microinverter (For Australia / New Zealand) ALTENERGY POWER SYSTEM Inc. aunz.APsystems.com APsystems Australia Suite 502, 8 Help Street, Chatswood NSW 2067 Australia Please scan this QR code Tel: +61 (0)2 8034 6587 EMAIL: info.aunz@APsystems.com...

  • Page 2: Table Of Contents

    4.3.1 Step 1 - Verify that grid voltage matches microinverter rating ........9 4.3.2 Step 2 – Y3 AC Bus Cable distribution ................9 4.3.3 Step 3 - Attach the APsystems Microinverters to the Racking ........9 4.3.4 Step 4 - Ground the system ....................10 4.3.5 Step 5 - Connect the APsystems microinverter to AC bus cable ......11...

  • Page 3: Important Safety Instructions

    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.

  • Page 4: Radio Interference Statement

    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.

  • Page 5: Symbols Replace Words On The Equipment, On A Display, Or In Manuals

    EMC and is authorized to energize, ground, and tag equipment, systems, and personnel circuits in accordance with established safety procedures. The inverter and photovoltaic system may only be commissioned and operated by qualified personnel. APsystems Microinverter QT2-AU User Manual...

  • Page 6: Apsystems Microinverter System Introduction

    APsystems Energy Monitor and Analysis (EMA) web-based monitoring and analysis system SOLAR PANEL ENERGY COMMUNICATION UNIT Internet Figure 1 APsystems Energy Communication Unit ECU-C or ECU-R are required for DRM modes to be used in the installation. APsystems Microinverter QT2-AU User Manual...
  • Page 7 IP67 environmental enclosure rating. Simple to install APsystems Microinvertes are compatible with most of 60 and 72 cell PV modules or 120 and 144 half-cut cells PV modules. (In order to confirm compatibility of PV module with APsystems microinverter, feel free to check our online “E-decider”...

  • Page 8: Apsystems Microinverter Qt2-Au Introduction

    A 24/7 energy access through apps or web based portal facilitate remote diagnosis and maintenance. The new QT2-AU is interactive with power grids through a feature referred to as RPC (Reactive Power Control) to better manage photovoltaic power spikes in the grid. In addition to those excellent features, 97% peak efficiency and 20% less components from last generation make APsystems QT2-AU a game changer to commercial PV.

  • Page 9: Apsystems Microinverter System Installation

    4. APsystems Microinverter System Installation A PV system using APsystems Microinverters is simple to install. Each Microinverter easily mounts on the PV racking, directly beneath the PV module(s). Low voltage DC wires connect from the PV module directly to the Microinverter, eliminating the risk of high DC voltage.

  • Page 10: Installation Procedures

    It is strictly prohibited to hand carry the microinverter by its AC cable. 4.3.3 Step 3 - Attach the APsystems Microinverters to the Racking a. Mark the location of the microinverter on the rack, with respect to the PV module junction box or any other obstructions.

  • Page 11: Step 4 - Ground The System

    The racking must be properly grounded as per local electrical code. 4.3.4 Step 4 - Ground the system There're 2 ways to ground the QT2-AU series microinverters. 1. By grounding washer attached. After the microinverters and racking are reliably installed, the microinverter's grounding washer can connect to the racking to ensure proper earthing.

  • Page 12: Step 5 - Connect The Apsystems Microinverter To Ac Bus Cable

    4. APsystems Microinverter System Installation 4.3.5 Step 5 - Connect the APsystems microinverter to AC bus cable Insert the microinverter AC connector into the trunk cable connector. Make sure to hear the “click” as a proof of robust connection Click Figure 4 Best Practice: Use the Bus Cable Unlock Tool of AC Bus to disconnect the connectors.

  • Page 13: Step 6 - Install A Bus Cable End Cap At The End Of Ac Bus Cable

    Insert the cable end into the seal. d. Rotate the nut with 3.3N·m until the latching mechanism meets the base. Body Seal Figure 8 4.3.7 Step 7 - Connect APsystems Microinverters to the PV Modules AC Output PV Ports PV Ports Figure 9 antenna ...
  • Page 14 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 be damaged and warranty will not apply. APsystems Microinverter QT2-AU User Manual...

  • Page 15: Step 8 - Complete The Apsystems Installation Map

    The inverter power output will vary in response to the AC grid voltage.This is switched on by default. (Details of how to enable this mode are contained in the “APsystems ECU-R Install & User Manual” or “APsystems ECU-C Install Manual & User Manual”, which can be accessed at our website at https://aunz.apsystems.com/resources/library/.)

  • Page 16: Step 9 - Warning Notice

     On all switchboards in between the consumer unit and the PV generator itself;  On, or in the PV generator itself;  At all points of isolation for the PV generator APsystems Microinverter QT2-AU User Manual...

  • Page 17: Apsystems Microinverter System Operating Instructions

    Alternatively, LED sequences could be an indicator of microinverters status (see section 6.1) Once the ECU has been commissioned properly, the APsystems Microinverters will start to send performance data to the ECU. The time required for all of the Microinverters in the system to report to the ECU will vary depending on the number of Microinverters in the system.

  • Page 18: Troubleshooting

    APsystems Technical Support. 6.2 ECU_APP APsystems ECU_APP (available in the EMA Manager APP) is the recommended tool to do on-site troubleshooting. When connecting the ECU_APP to the ECU hotspot (please check ECU User Manual for more detailed information), installer can check every microinverter status (production, communication) but also ZigBee signal strength, grid profile and other insightful data helping the troubleshooting.

  • Page 19: Apsystems Technical Support

    6. Troubleshooting 6.5 APsystems Technical Support APsystems local Technical Support team is available to support professional installers to get familiar with our products and to troubleshoot installations when needed. Do not attempt to repair APsystems Microinverters. Please contact your local APsystems Technical Support.

  • Page 20: Replace A Microinverter

    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 AC by turning off the branch circuit breaker. 2. Disconnect the inverter AC connector from the AC Bus.

  • Page 21: Technical Data

    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.

  • Page 22: Qt2-Au Microinverter Datasheet

    High Frequency Transformers, Galvanically Isolated Inverter Topology Isolated Energy Management Energy Management Analysis (EMA) system ④ Warranty 10 Years Standard ; 20 Years Optional Relative humidity ratings 4%-100% <2000m Maximum altitude rating Pollution degree Class Ⅰ Class of equipment APsystems Microinverter QT2-AU User Manual...
  • Page 23 ③ Recommend no more than 80 inverters register to one ECU for stable communication. ④ To be eligible for the warranty, APsystems microinverters need to be monitored via the EMA portal. Please refer to our warranty T&Cs available on aunz.APsystems.com ©...

  • Page 24: Qt2-Au - Wiring Diagram

    9. QT2-AU - Wiring Diagram 9.1 Sample Wiring Diagram Figure 12  No neutral wire output from inverter.  Compatible with both Delta and Wye 3-phase grid. APsystems Microinverter QT2-AU User Manual...

  • Page 25: Apsystems Microinverter Installation Map

    10. APsystems Microinverter Installation Map The APsystems Installation Map is a diagram of the physical location of each microinverter in your PV installation. Each APsystems microinverter has two serial number labels. Peel the one label and affix it to the respective location on the APsystems installation map.

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