Preface; Overview; Target Groups; Safety Instructions - Sunways STT-4K User Manual

The products, services or features you purchase are subject to the commercial
contracts and terms of Ningbo Sunways technologies Co., Ltd. All or part of the
products, services or features described in this document may not be within your
purchasing or using scope. Unless otherwise agreed in the contract, the Company
shall not make any express or implied declaration or guarantee of the contents of this
document.
Due to product version upgrades or other reasons, the contents of this document will
be updated periodically. Unless otherwise agreed, this document serves only as a
guide to use, and all statements, information and recommendations in this document
do not constitute any express or implied guarantee.
Manufacturer: Ningbo Sunways technologies Co., Ltd.
Address: No. 1, Second Road, Green Industrial Zone, Chongshou Town,
Cixi City, ZheJiang Province, PEOPLE'S REPUBLIC OF CHINA
Website: www.sunways-tech.com
Service Mail: service@sunways-tech.com
Hotline: +86 400-9922-958
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Attention

1. Preface

1.1 Overview

This manual is an integral part of Sunways STT 4-25kW series three-phase inverters (hereinafter
referred to as the inverters). It mainly introduces the assembly, installation, electrical
connection, debugging, maintenance and troubleshooting of the products. Before installing
and using inverters, please read this manual carefully, understand the safety information and
be familiar with the functions and characteristics of inverters.

1.2 Target Groups

This manual is applicable to the electrical installers with professional qualifications and
the people who bought it. If there are any problems in the installation process, please call
Sunways service telephone at +86 400-9922-958 or email Sunways at service@sunways-tech.
com for consultation.

2. Safety Instructions

2.1 Safety Notes

2.1.1 Before installation, you should read this manual carefully and follow the instructions in
this manual strictly.
2.1.2 Installation operators need to undergo professional training or obtain electrical related
professional qualification certificates.
2.1.3 When installing, do not touch any part of the inner part of the inverter except the
terminals.
2.1.4 All electrical installations must conform to local electrical safety standards.
2.1.5 If the inverter needs maintenance, please contact the local designated personnel for
system installation and maintenance.
2.1.6 To use this grid-connected inverter for power generation needs the permission of the
local power supply authority.
2.1.7 During the operation of the inverter, the surface temperature may be higher and there is
a risk of burns. Do not touch.
2.1.8 When installing photovoltaic panels in the daytime, the photovoltaic panels should be
covered with opaque materials to avoid the risks and danger of high voltage at the panel end
in sunlight.

2.2 Statement

Ningbo Sunways technologies Co., Ltd. has the right not to undertake quality assurance in any
of the following circumstances:
2.2.1 Damages caused by irregular transportation.
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