APsystems QT2 Installation Manual
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APsystems QT2 Installation Manual

Microinverter
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APsystems Microinverter Installation manual
ALTENERGY POWER SYSTEM Inc.
apsystems.com.au
APsystems Australia
Suite 502, 8 Help Street, Chatswood NSW 2067 Australia
EMAIL: info.aunz@APsystems.com
© All Rights Reserved
APsystems QT2 Microinverter
(For Australia, New Zealand)
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Summary of Contents for APsystems QT2

  • Page 1 APsystems Microinverter Installation manual APsystems QT2 Microinverter (For Australia, New Zealand) ALTENERGY POWER SYSTEM Inc. apsystems.com.au APsystems Australia Suite 502, 8 Help Street, Chatswood NSW 2067 Australia Please scan this QR code to have access to our APPs and Products EMAIL: info.aunz@APsystems.com...

  • Page 2: Table Of Contents

    4.3.4 Step 4 - Ground the system .......................10 4.3.5 Step 5 - Connect the APsystems microinverter to AC bus cable ............10 4.3.6 Step 6 - Install a Bus Cable End Cap at the end of AC bus cable ............11 4.3.7 Step 7 - Connect APsystems Microinverters to the PV Modules ............12...

  • 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 In Lieu Of Words

    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. APsystems Microinverter QT2 Installation manual...

  • Page 6: Apsystems Microinverter System Introduction

    2. APsystems Microinverter System Introduction The APsystems Microinverter is used in utility-interactive grid-tied applications, comprised of three key elements:  APsystems Microinverter  APsystems Energy Communication Unit (ECU)  APsystems Energy Monitor and Analysis (EMA) web-based monitoring and analysis system...
  • Page 7 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 Introduction

    A 24/7 energy access through apps or web-based portal facilitate remote diagnosis and maintenance. The new QT2 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, it provides 96.5% peak efficiency with 20% less components compared to the last generation product.

  • 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

    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

    Fix the grounding copper wire by the grounding lug. grounding lug Figure 3 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...

  • Page 12: Step 6 - Install A Bus Cable End Cap At The End Of Ac Bus Cable

    Nut / Claw Seal/ body/ Body C. Insert five wires into the core wires hole of the D. Insert seal and Clamp Finger into the body, body then tighten the nut, torque 2.5±0.5N.m Figure 7 APsystems Microinverter QT2 Installation manual...

  • Page 13: Step 7 - Connect Apsystems Microinverters To The Pv Modules

    4. APsystems Microinverter System Installation 4.3.7 Step 7 - Connect APsystems Microinverters to the PV Modules Figure 8 Remove the DC connector caps before PV modules connection .  The neutral wire is not mandatory to be connected to grid.

  • Page 14: Step 8 - Connect Apsystems Microinverters To Grid

    When AC extension cable is needed, users could connect the AC bus cable and AC extension cable in a junction box or use a pair of male/female AC connectors that APsystems provides as optional accessory. APsystems Microinverter QT2 Installation manual...

  • Page 15: Step 10 - Complete The Apsystems Installation Map

    4. APsystems Microinverter System Installation 4.3.10 Step 10 - Complete the APsystems installation map a. Each APsystems Microinverter has 2 removable serial number labels. b. Complete installation map by sticking ID label of each microinverter at the right location. c. The second serial number label, could be stuck on the solar module frame, which could help later to...

  • Page 16: 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 17: Troubleshooting

    Please contact your local 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 18: 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 19: 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 20: 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 21: Qt2 - Wiring Diagram

    9. QT2 - Wiring Diagram 9.1 Sample Wiring Diagram Figure 13  The neutral wire is not mandatory to be connected to grid.  Compatible with both Delta and Wye 3-phase grid. APsystems Microinverter QT2 Installation manual...

  • Page 22: 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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