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About grounding
※ Please be sure to ground to prevent electric shock.
⊙ Grounding method - When there is grounding terminal
If you are using an AC outlet with ground
terminals, you do not need to ground it separately.
⊙ Grounding method - Without grounding terminal
If you are using an AC outlet without a ground
terminal, connect the ground wire to the copper
plate and bury it in the ground.
Do not ground in these places.
Never connect to a gas pipe, water pipe, pipe, lightning rod,
telephone line, or connection.
※Plastic water pipes and non-insulated materials do not have a grounding effect.
AC only
outlet
Copper plate
Equal to or
more than
29.5"
Ground wire
A Ground wire
A Ground wire
Grounding
terminals
Grounding
is not
needed
