Yamato DF411, Instruction Manual

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17
PREPARATION AND CHECK BEFORE USING
Warning
Never fail to connect earth (green core wire of power supply code) with your grounding wire or
grounding terminal part in order to avoid electric shock.
・
Don’t connect earth to gas pipe or water main
・
Don’t use forked plug receptacle since it can cause heat generation etc.
・
Don’t install it at place where inflammable gas or corrosive gas breaks out.
Caution
Plug receptacle check
・
Connect power supply code to proper switch board or plug receptacle
Safety check
・
Make sure that independent overheat prevention is set 15
℃
higher than the temperature of
its inside to be used.
Charge check
・
In order to charge battery for date back-up, in case of new installment or circuit breaker is off
for many hours, turn on the breaker and keep the equipment with electricity on and have it for
more than 25 hours