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Before connecting PV panels to DC terminals, please make sure the polarity
is correct. Incorrect polarity connection could permanently damage the unit.
Check short-circuit current of the PV string. The total short-circuit current of
the PV string should be less than the inverter's maximum DC current.
Connect the positive and negative terminals from the PV panel to positive
(+) terminals and negative (-) terminals on the PV-Inverter. Each DC
terminal on Inverter can withstand 12Adc for 1500-US,14Adc for 2000-
US,17Adc for 3000-US.
High voltages exist when the PV panel is exposed to the sun. To reduce risk
of electric shock, avoid touching live components and treat connection
terminals carefully
Wiring step:
1. Open the independent DC separate unit ,the DC switch on the Growatt
US inverter and the AC separate unit.
2. Open the left hand side knock-out hole.
Under any condition! Make sure 1500-US inverter maximum open circuit
voltage (Voc) of PV string is less than 450Vdc,2000/3000-US inverter Max.
Voc is less than 500Vdc.
Do not connect strings with an open circuit voltage greater than the Max.
input voltage of the inverter. If the strings voltage exceeds the Max. input
voltage of the inverter, it can be destroyed due to overvoltage. All warranty
claims become void.
Check the design of the PV plant. The Max. open circuit voltage, which
can occur at solar panels ambient temperature of -10℃, must not exceed the
Max. input voltage of the inverter.
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