7
03 Product Introduction
User Manual
V1.0-2023-10-30
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 off-grid output may fail due to excessive instantaneous power.
•
BACK-UP is not recommended if the PV system is not configured with batteries. Otherwise, the
risk in system power usage is beyond the equipment manufacturer's warranty scope.
•
Do not connect auto-coupling or isolation transformers to the BACK-UP port.
• Factors such as: temperature, humidity, weather conditions, etc. may limit the battery's current
and affect 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 off-grid function of the inverter will be closed automatically
if the load capacity exceeds the inverter's rated power. To enable it, turn off 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
.
• Do not connect three-phase motor loads without N wires.
