15
Model: TX-203,TX-204,TX-228; Article No. 5021,5023,5040; 10/2022
6. Measure the voltage of the solar panel to the micro inverter with a suitable multi-
meter. The required starting voltage of the micro inverter is above DC22V.
7. Check the MC4 connectors of the micro inverter and solar panel(s). Damaged DC
connections must be replaced.
8. If necessary, check with your grid operator whether the grid frequency matches the
frequency range of the micro inverter.
CAUTION!
Do not attempt to repair the micro inverter.
If the above steps do not solve the problem, contact our support or an
electrician.
The AC connection on the micro inverter cannot be replaced/repaired. If the
cable has been damaged, the device should be disposed of.
Unless otherwise specified, maintenance work must be carried out with the
equipment disconnected from the mains (mains switch open) and the solar
panels covered, or insulated.
Do not use rags or corrosive products for cleaning that could corrode parts
of the equipment or cause electrostatic charges.
Avoid temporary repairs. All repairs should be made only with original spare
parts.
Each micro inverter should be protected by a circuit breaker, but central
disconnect protection is not required unless specified by national standards,
or by the responsible network operator.
Technical specifications
⚫
Verify that the voltage and current specifications of the solar panels match
those of the micro inverter.
⚫
The maximum open circuit voltage of the solar panel must be within the
operating voltage range of the micro inverter.
⚫
It is recommended that the maximum rated current in the MPP be equal to
or less than the maximum input DC current. However, the maximum short
circuit current must be equal to or less than the maximum DC input short
circuit current.
⚫
It is NOT recommended to oversize the output DC power of the solar panels
by more than 1.35 times (based on the AC output power of the micro inverter).
For the technical specifications of the solar module, please refer to the enclosed data
sheet.
Inverter
Modell
TX-212
TX-220/228
DC-input
Recommended panel power (W)
240-380 (per panel)
Panel compatibility
60-cell or 72-cell panels
