Safety Warning
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Only professional technicians are allowed for installation and maintenance;
Installation in any damp,
condensation environment with inflammable and explosive gas is
forbidden;
When the product is being installed or maintained, the power must be switched off;
You are prohibited from touching the conductive part when the product is operating;
Do not install the product in a place where the gaseous medium can corrode the metal or
damage the insulation.
Column AC automatic voltage regulators are prohibited from being used in parallel.