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Manual contains crucial instructions for installation and maintenance of the EVT400 microinverter.
Key safety guidelines and warnings for installation, operation, and handling of Envertech equipment.
Explains the system's operation, focusing on individual MPPT for maximum energy harvest.
Details the EnverBridge for real-time monitoring and reporting of PV system performance.
Discusses the inherent reliability of microinverters and their design for harsh environmental conditions.
Highlights the ease of design and installation for PV systems utilizing Envertech microinverters.
General overview of the EVT400 microinverter.
Lists key features like high efficiency, reliability, cost-effectiveness, and protective functions.
Presents detailed technical specifications for the EVT400 microinverter model.
Instructions to inspect the package for damage and ensure all components are present.
Identifies and illustrates the main components and connectors of the EVT400 microinverter.
Provides contact details and website for obtaining additional support and information.
Explains the meaning of various safety symbols found on the inverter and in the manual.
Lists and describes the essential accessories required for the microinverter system setup.
Provides instructions on the correct procedure for connecting PV modules to the microinverters.
Step-by-step instructions for powering up the microinverter system and initial checks.
Describes the normal operation, LED indicators, and initial startup sequence of the EVT400.
Explains the meaning of various LED status lights for normal operation and error conditions.
Provides a systematic approach to diagnose and resolve issues with non-functioning microinverters.
Detailed safety procedure for disconnecting microinverters from PV modules during maintenance or replacement.
The Envertech EVT400-R is a state-of-the-art microinverter designed for on-grid photovoltaic (PV) systems, embodying world-top-class technology for efficient and reliable solar energy conversion. This device plays a crucial role in maximizing energy harvest from a PV array by converting the direct current (DC) produced by individual PV modules into alternating current (AC suitable for the utility grid. Its distributed architecture ensures high system reliability and optimal performance, even under challenging environmental conditions.
The core function of the EVT400-R microinverter is to convert DC power from a single PV module into AC power. Unlike traditional string inverters, each EVT400-R is connected to an individual PV module, allowing for independent Maximum Peak Power Point Tracking (MPPT) for each module. This unique configuration ensures that the maximum power available from each PV module is consistently exported to the utility grid, irrespective of the performance of other modules in the array. This means that factors such as shading, soiling, different orientations, or PV module mismatches will not significantly impact the overall system's energy production, as each microinverter optimizes its associated module's output.
The Envertech microinverter system also includes an optional EnverBridge monitoring device, which collects real-time and historical performance data from the microinverters. This data can be accessed through a web browser or the Envertech app (EnverView), providing users with comprehensive insights into their PV system's operation, energy harvest, and overall reliability. The EnverBridge, when connected to a broadband router or modem, automatically receives reports from the Envertech microinverters, simplifying system management and design.
The EVT400-R microinverter is designed for ease of use, high efficiency, and robust performance, making it a highly cost-effective solution for PV systems.
Simple Design and Installation: PV systems utilizing Envertech microinverters are remarkably simple to design and install. The system accommodates various types of PV modules, allowing for flexible orientations and quantities. The need for cumbersome traditional inverters is eliminated, as each microinverter can be quickly mounted directly onto the PV rack, beneath its corresponding PV module. Low-voltage DC wires connect directly from the PV module to the co-located microinverter, significantly reducing the risk of personnel exposure to dangerously high DC voltages during installation and operation. The installation process involves verifying grid and PV panel voltage compatibility, mounting microinverters, grounding the system, installing a Wi-Fi antenna, serially connecting AC cables, fastening AC cables, connecting to the grid, connecting PV modules, and finally, switching on the PV system.
Optimal Energy Harvest: The wide MPPT voltage range of the EVT400-R ensures high energy yield across diverse weather conditions. Its high MPPT accuracy minimizes power loss during the DC-to-AC conversion process, contributing to maximum energy production from the PV system.
Robust Communication and Monitoring: The EVT400-R supports Power Line Carrier Communication (PLCC) and Wi-Fi for data transmission. The integrated Wi-Fi module allows direct connection to a router, facilitating easy configuration and monitoring through the EnverView app or the EnverPortal web platform. Users can register an account, bind their microinverters by entering or scanning the serial number, and then monitor the system's performance, including real-time data and historical performance. The app provides options for quick and precise data queries, allowing users to view overall system performance or detailed data for individual microinverters.
Safety Features: The microinverter incorporates a complete set of protective functions, including internal overvoltage/undervoltage protection, faulty grounding protection, and grid monitoring. These features ensure safe and reliable operation, protecting both the device and the connected grid. The device is designed for outdoor installation with an IP67 protection level, making it resistant to dust and water ingress.
Adaptability: The EVT400-R is highly adaptable and compatible with almost all PV modules. However, it is crucial to check the parameters of both the microinverters and modules before installation to ensure compatibility and optimal performance.
The Envertech EVT400-R is designed for minimal maintenance, with a focus on reliability and ease of troubleshooting.
High Reliability: Microinverter systems are inherently more reliable than traditional inverters due to their distributed nature. A single point of failure in the PV system is avoided, as each microinverter operates independently. The EVT400-R is designed to operate at full power even at high ambient temperatures, ensuring consistent performance over its lifespan.
LED Status Indications: The microinverter provides clear LED status indications for easy troubleshooting. During startup, the LED blinks red initially, then green to indicate normal operation. A continuous red blink after DC power is applied signifies a startup failure. Post-startup, a flashing green LED indicates normal operation. A red light flashing every 2 or 3 seconds means the microinverter is waiting for sunlight or preparing to produce energy. A continuously flashing red light indicates that the microinverter is not operating normally, often due to the utility grid being outside the operable voltage/frequency range.
Troubleshooting Guide: The manual provides a systematic troubleshooting guide for inoperable microinverters. This includes checking AC breakers, verifying grid connection and voltage within allowable ranges, confirming AC voltage at load centers, checking AC line voltage at the junction box, confirming grid connection by measuring voltage, visually inspecting AC branch circuit connections, ensuring all circuit breakers are off, and re-connecting PV modules' DC connectors. It also suggests checking DC connection integrity and verifying grid frequency with the utility company.
No User-Serviceable Parts: The EVT400-R microinverter contains no user-serviceable parts. Users are explicitly warned against attempting to repair the device. In case of failure, users should contact their direct supplier or Envertech customer service to initiate a Return Merchandise Authorization (RMA) process for replacement. Any unauthorized perforations or modifications are strictly forbidden and will void the factory warranty.
Disconnection Procedure: For situations requiring the removal of a microinverter, a strict disconnection procedure is outlined to ensure safety. This involves turning off the AC branch circuit breaker, disconnecting AC connectors, covering the PV module with an opaque material before disconnecting DC connectors, loosening the grounding screw, and finally, removing the microinverter from the PV frame. This ensures that disconnection does not occur while the microinverter is in an active working status.
Recycling and Disposal: In compliance with regulations for electrical and electronic waste management, the EVT400-R should not be disposed of with residential waste. Equipment that has reached its lifetime must be collected separately by qualified units or individuals for proper recycling. Users are advised to return the device to their dealer for recycling or send it to an approved recycling unit in their area.
General| Model | EVT400-R |
|---|---|
| Rated Power | 400W |
| Maximum AC Power Output | 400W |
| Number of MPP Trackers | 1 |
| Output Voltage | 230V |
| Nominal Output Voltage | 230V |
| Maximum Output Current | 1.74A |
| Power Factor | >0.99 |
| Weight | 1.5kg |
| Cooling | Natural Convection |
| Nominal Output Frequency | 50/60 Hz |
| AC Frequency | 50/60 Hz |
| European Efficiency | 95% |
| Maximum Output Power | 400 W |
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