JFY tech JSI-1500TL Installation And Operator's Manual page 4

touch the heatsink at the back of the solar inverter or nearby surfaces while
Inverter is operating. By the way, keep it away from any flammable objects.

This version of JSI inverters shall be used with panels connected in a "floating"
way, i.e. with positive and negative terminal not connected to the ground.
The equipment is provided with several labels, some of them with a yellow
background, which are related to safety issues.
Make sure to read the labels and fully understand them before installing the
equipment.
The symbols are:
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Equipment grounding conductor (Main grounding protective
earth, PE)
Alternate Current (AC) value
Direct Current (DC) value
Phase
Grounding (Earth)
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