Hoymiles DTU-Lite-S(Wi-Fi) User Manual

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B
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Region: Global AP040462 REV1.3
© 2022 Hoymiles Power Electronics Inc. All rights reserved.
1. Interface Layout
Item Description
USB Connector
Status Indicator
Reset Button
2. Installation
A) Check the box for the following items:
√ Hoymiles DTU-Lite-S(Wi-Fi)
√ Adapter
Important:
DTU-Lite-S(Wi-Fi) is only compatible with Hoymiles new HMS and HMT series of microinverters.
Option 1: Connect the DTU to the
adapter and plug it into a wall socket
B) Power the DTU-Lite-S(Wi-Fi)
DTU-Lite-S(Wi-Fi) Quick Installation Guide
Option 2: Connect the DTU to the
adapter and plug it into the power strip.
B) Download the Hoymiles mobile
installer App.
A) Plug in the power adapter to energize the DTU. Once the DTU powers on, the red, green and blue lights will flash for
one second in turn for 30 seconds.
Select the DTU's wireless
network and click “Connect”.
(The network name of the DTU
consists of DTUL and product
serial number, and is not
password-protected by default.)
C) Use the App to connect to the DTU:
Open the Installer App on smart
phone/tablet and log in.
Click “O&M” at the bottom of the
page and then click “Network
Config”.
3. Online Setting
Note:
1. Please make sure that it is placed at least 0.5 meters above the ground, and try to install the DTU at a 90 degrees angle
perpendicular to the ground.
2. To prevent signal attenuation, please do not install the DTU directly above metal or concrete.
Option 1
A B C
Option 2

Hoymiles DTU-Lite-S(Wi-Fi) Specifications

General

Model	DTU-Lite-S(Wi-Fi)
Communication	Wi-Fi
Wi-Fi Standard	IEEE 802.11 b/g/n
Operating Frequency	2.4 GHz
Power Supply	5V DC
Communication Protocol	Proprietary
Maximum number of PV modules	4
Compatibility	Hoymiles Microinverters
Operating Temperature	-20°C to +55°C

Summary

Interface Layout

USB Connector

Details about the USB connector port on the DTU device.

Status Indicator

Information on the status indicator light on the DTU.

Reset Button

Description of the reset button functionality for the DTU.

Installation Guide

Check Box Contents

Verifies the included items in the DTU package, such as the DTU unit and adapter.

Powering the DTU

Instructions on how to power the DTU-Lite-S(Wi-Fi) using wall sockets or power strips.

Online Setting and Configuration

Initial Power-On Procedure

Procedure after plugging in the power adapter; lights flash for 30 seconds.

Download Installer App

Guide to downloading the Hoymiles mobile installer application for setup.

App Connection to DTU

Steps to connect the DTU using the installer app, including network configuration.

Internet Setup

Configuring the DTU to connect to the internet via Wi-Fi network settings.

Installation Map Completion

Affix Serial Number Label

Instructions to peel and affix the DTU's serial number label to the installation map.

Complete System Information

Guidance on filling out the system information on the installation map.

MI Toolkit Functionality

On-site Inspection Use

Details on the MI Toolkit's use for on-site inspection and monitoring of microinverters.

Important Warnings

Installation and Repair Precautions

Advisories for qualified personnel, self-repair prohibition, and warranty voidance.