2
.Installation and connection
14
2-4
Connecting the AC input
When installation and connection are complete, connect the unit’s AC input to a commercial
power source.
Make sure to connect the AC input plug of the unit into a wall outlet
(commercial power) with rated input voltage (100V to 120V AC).
●
Connecting to a wall outlet (commercial power) of a different rated voltage may result in
fi
re.
●
The unit may fail.
Caution
2-4-1. Connecting the AC input plug
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Use the 15A plug included with the product at shipment.
Provide a wall outlet (commercial power) suitable for the shape of the 15A plug (NEMA 5-15R).
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It is possible to connect to a 2-pin outlet using the included 3P-2P adapter.
P C
3P receptacle
2P receptacle
Connect the grounding wire to earth in building
●
The unit was charged before shipment, but it may have self-discharged during shipment,
resulting in a reduced backup time.
We recommend charging the unit before use.
When the AC input plug is connected to commercial power, the battery automatically
starts charging.
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You can perform "2-5 Checking the operation" on page 15 also before charging the battery.