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03 Product Introduction
User Manual V1.6-2024-03-20
3.2 Application Scenarios
WARNING
• The PV system is not suitable to connect equipment that relies on a stable power supply,
such as medical equipment to sustain life. Ensure that no personal injury is occurred when
the system is disconnected.
• Avoid loads with high start-up current like high-power water pumps in the PV system.
Otherwise, the o-grid output may fail due to excessive instantaneous power.
• BACK-UP is not recommended if the PV system is not congured with batteries. Otherwise,
this may cause system power failure.
• Do not connect auto-coupling or isolation transformers to the BACK-UP port. Otherwise,
the inverter may be damaged and the system power may fail.
• Factors such as: temperature, humidity, weather conditions, etc. may limit the battery's
current and aect its load.
• When single overload protection occurs, the inverter can restart automatically; however,
the restarting time will be extended if it happens several times. For a faster restarting, try it
via APP .
• When the grid is disconnected, the o-grid function of the inverter will be closed
automatically if the load capacity exceeds the inverter's rated power. To enable it, turn o
the large loads and ensure the load power is less than the rated power of the inverter.
• Nomral household loads can be supported when the inverter is in back-up mode. Accepted
loads as below:
• Inductive loads: 1.5P non-inverter air conditioner can be connected to the inverter. If
two or more non-inverter air conditioners are connected, the back-up mode may be
unstable.
• Capacitive load: total power ≤ 0.66 times of the inverter’s rated output power.
• Loads with neutral wires are allowed when connecting three phase loads to the BACK-
UP port. Do not connect loads without neutral wire to the BACK-UP port. Otherwise, the
loads cannot work properly or even be damaged.
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