● Damage during transportation
● Storage conditions that do not meet the requirements specied in this
document
● Incorrect installation or use
● Installation or use by unqualied personnel
● Failure to follow the operation instructions and safety precautions on the
product and in this document
● Operation beyond the conditions
specied in this document
● Operation beyond the specied parameter ranges
● Unauthorized modications to the product or software code or removal of the
product
● Equipment damage due to force majeure (such as lightning,
re, and storms)
● Warranty expired and not extended
● Installation or use in environments which are not specied in relevant
international standards
Personnel Requirements
Only
qualied electricians are allowed to install, connect cables for, maintain,
troubleshoot, and replace the optimizer.
● Receive professional training.
● Read through this document and understand all safety precautions.
● Get familiar with the safety specications about the electrical system.
● Understand the composition and working principles of the grid-tied PV power
system and local regulations.
● Wear proper personal protective equipment (PPE).
Label Protection
● Do not scrawl or damage any warning labels on the optimizer because these
labels contain important information about safe operation.
● Do not scrawl or damage the nameplate on the back of the optimizer
because it contains important product information.
System Installation
● Ensure that the optimizer is not powered on during the installation.
● Reserve appropriate clearances around the optimizer for installation and heat
dissipation.
Electrical Connections
Before connecting cables, ensure that the optimizer is not damaged. Otherwise,
electric shocks or
re may occur.
MERC Smart PV Optimizer
User Manual 1 Safety Precautions
Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd. 2
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