1. Product Overview
The SUMRY WIFI Module is specifically designed for data acquisition, remote transmission, and remote parameter configuration of photovoltaic energy storage integrated converters, particularly for the SUMRY HGX series of inverters. It enables monitoring and control of your solar inverter system via the "Hy-Power" mobile application, available for both iOS and Android devices.
NOTE: This WiFi module is exclusively compatible with SUMRY HGX series inverters. Please ensure your inverter model is HGX before installation to avoid incompatibility.


2. Setup Guide
2.1 Electrical Connection
- Identify the interface code in the shell according to your DTU type.
- Ensure that the DTU RJ-45 interface is securely connected with the inverter's COMM interface.
- Once the inverter is powered on, the DTU power indicator should be continuously lit. After the DTU initiates, the communication indicator will begin flashing.

2.2 Wi-Fi Router Connection
2.2.1 App Download and Installation
To begin, download the "Hy-Power" application:
- For Android platform: Scan the QR code provided below or search for "Hy-Power" in the Google Play Store.
- For iOS platform: Search for "Hy-Power" in the Apple App Store.

2.2.2 User Registration & Login
- Open the Hy-Power app and tap the "Register" button on the homepage.
- Fill in all the required information on the "Register" page. Review and accept the "User Agreement and Privacy Policy", then tap "Get Verification Code". Enter the received verification code and tap "Register" to complete your account creation.
- Return to the app's homepage. Enter your registered username and password, accept the "User Agreement and Privacy Policy", and tap the "Login" button to access your account.

2.2.3 Add DTU & Inverter
- On the "Equipment list" page, tap the "+" icon in the upper right corner to enter the "Add Collector" page.
- Fill in the necessary information for the collector and tap "Save" to add it.
- Locate the corresponding DTU in the "Device List" and tap the "Add" button. Fill in the inverter information that is actually connected to the collector and then tap "Save" to complete the inverter addition.
2.2.4 Networking Parameter Setting
- From the "Device List" page, tap the image on the left side of the DTU entry to access the "DTU details" page.
- Tap the "Wi-Fi" button, enter the correct Wi-Fi network name and password, and then tap "OK". If the app does not connect to the Wi-Fi parameter configuration directly, it will prompt for "Bluetooth distribution network". Select the appropriate collector for Bluetooth connection. The page will then redirect to the "Collector Details" page. You can continue to enter the Wi-Fi name and password there.
- On the "Collector Details" page, tap the "Network Test" button. If the DTU Wi-Fi parameters are configured correctly and successfully connected to the internet, you will receive a "Network Test Successful" message.

3. Operating Instructions
3.1 Observation & Configuration of Inverter
- On the "Device list" page, expand the DTU entry and tap the photo of the inverter. This will take you to the "Status" page of the corresponding inverter. You can navigate through the buttons at the bottom of the page to view detailed inverter information.
- To configure inverter parameters, tap the "Parameters" button to enter the "Parameter Setting" page. The app will facilitate the DTU parameter setting via the internet.

4. Maintenance
No specific maintenance procedures are detailed for the SUMRY WIFI Module in the provided documentation. Generally, ensure the module is kept clean and free from dust and moisture. Periodically check for firmware updates through the Hy-Power app to ensure optimal performance and security.
5. Troubleshooting
5.1 WIFI Installation Precautions
Pay close attention to the following points during the WIFI installation process to avoid common issues:
- After successfully adding the collector, proceed to add the device (inverter). Do not attempt network testing directly after adding the collector without first adding the inverter.
- Before attempting a Bluetooth connection, ensure that both Location services and Bluetooth permissions are enabled on your mobile device.
- When registering or entering a phone number in the app, always include the country code at the beginning of the phone number.

6. Specifications
| Attribute | Value |
|---|---|
| Brand Name | SUMRY |
| Model Number | HGX |
| Is Smart Device | Yes |
| Certification | CE, RoHS, WEEE |
| Origin | Mainland China |
| High-concerned chemical | None |
| Package Length | 15 cm |
| Package Width | 15 cm |
| Package Height | 6 cm |
| Package Weight | 0.2 kg |
7. Warranty and Support
Specific warranty details are not provided in the available documentation. For warranty claims or technical support, please contact your retailer or the manufacturer directly. Ensure you have your purchase details and product model number (HGX) ready.
8. User Tips
- Compatibility Check: Always double-check that your inverter is a SUMRY HGX series model. This module is not guaranteed to work with other brands or models, even if they appear similar.
- App Permissions: Grant all necessary permissions (Location, Bluetooth) to the "Hy-Power" app for seamless setup and operation.
- Network Stability: Ensure a stable Wi-Fi connection during the setup process for reliable data transmission.
9. Frequently Asked Questions (FAQ)
- Q: Is this module compatible with non-SUMRY inverters, even if they look similar?
- A: No, this WiFi module is specifically designed for SUMRY HGX series inverters. Compatibility with other brands or models, even if visually similar, is not guaranteed.
- Q: What should I do if the DTU power indicator is not on?
- A: Ensure the inverter is turned on normally and the DTU is properly connected. The power indicator should be continuously on when the inverter is operating.
- Q: What if the communication indicator is not flashing?
- A: After the DTU starts, the communication indicator should flash. If it's not, check the electrical connection and ensure the DTU is communicating with the inverter.
- Q: I'm having trouble registering my account. What should I check?
- A: Ensure you have enabled location and Bluetooth permissions on your mobile device. Also, when entering a phone number, make sure to include the country code before the phone number.

