Zone 450 Operation

6. Operation Power On/Off
Once the inverter has been properly installed, press the power switch to turn on the unit. The unit will work automatically in line mode or inverter mode according to

input utility power's status. When press the power switch again, the unit will be turned off.

LED Indicators & Audible Alarms.  
There are three indicators (Green/Red/Yellow) in the front panel of the unit.

 Operation Mode Selector
a). “UPS”: setting for conventional electrical appliance.
If you select UPS, the unit's input utility range will be 162~290VAC as normal home UPS.
If the utility is higher or lower than this range, the unit will transfer to inverter mode automatically. And you can connect the computer systems or other precision home equipment when you select this operation mode.

b). “INV.”: setting for energy saving If you select this mode, the unit's input utility range will be extended to 90~280VAC. If the utility is higher or lower than this range, the unit will transfer to inverter mode automatically.So, you can connect the home equipments, such as light bulb, fluorescent tube, fan, or TV on this mode. 

Caution!! If you select the “INV.” mode and connect the computer to the output of the unit, the computer may reboot if the input voltage is too low to be accepted.