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Attention
The products, services or features purchased are subject to the commercial contracts
and terms of Sunways technologies Co., Ltd. All or part of the products, services or
features described in this document may not be within purchased. Unless otherwise
agreed in the contract, the Company shall not make any express or implied declara-
tion 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.
1 Preface
※ 1.1 Overview
This manual is an integral part of Sunways STT 4-25kW series three-phase inverters (here-
inafter referred to as the inverter). It mainly introduces the assembly, installation, electri-
cal connection, maintenance and troubleshooting of the products. Before installing and
using the inverter, please read this manual carefully, understand the safety information
and be familiar with the functions and characteristics of the inverter.
※ 1.2 Target Groups
This manual is applicable to the electrical installers with professional qualications and
end-users. If there are any problems in the installation process, please call Sunways ser-
vice telephone at +86 400-9922-958 or email Sunways at service@sunways-tech.com for
consultation.
1 PrefaceAttention