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Ÿ
Each WIT Inverter must be equipped with an AC circuit breaker.
Multiple WIT Inverters cannot connect to the same AC circuit breaker.
Ÿ
Do not connect the load between the WIT Inverter and the circuit
breaker.
If the cable is thick, do not shake the cable terminals after tightening
Ÿ
them. Otherwise, the loose connection may cause overheating and
WARNING
device damage. Ensure that the terminals are properly connected
before starting the WIT Inverter.
Ÿ
Ensure the correct polarity of the terminals before connecting the PV
array to the WIT Inverter.
Maintenance and replacement:
Ÿ
It must be operated by qualified and trained electrical technicians.
Technicians should observe instructions in this manual and local
regulations.
Ÿ
After turning off the DC switches and the AC breakers, wait for at
least five minutes before performing any operations to avoid risks.
DANGER
When the OLED screen indicates "PV Isolation low", do not touch the
Ÿ
chassis as a ground fault may have been detected.
Ÿ
Beware of high voltages which may cause electric shocks.
Ÿ
To ensure good dissipation, clean the fan regularly.
Ÿ
Do not use the air pump to clean the fan. Otherwise, the fan may be
damaged.
WARNING
Others:
Upon receiving the product, check if the contents are intact and
Ÿ
complete. If any damage is found or any component is missing, please
contact your distributor.
The maximum PV input voltage cannot exceed 1100V. The battery
Ÿ
input voltage cannot exceed 1000V.
For the WIT Inverter that will not be put into operation in the future,
Ÿ
WARNING
you should properly dispose of them by yourself.
2.2 Symbol Conventions
Symbol
DANGER indicates a hazard with a high level of risk which, if not
avoided, will result in death or serious injury.
DANGER
WARNING indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
WARNING
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Description
Symbol
CAUTION indicates a hazard with potential risk which, if not avoided,
could result in minor or moderate injury.
CAUTION
NOTICE indicates that under certain circumstances, improper
operations could result in property damage.
NOTICE
Remind operators to check the instructions before installing or
operating the WIT Inverter.
2.3 Label Description
Symbol
Name
High voltage
Burn warning
Grounding
Delay discharge
mark
Refer to the
manual
DC
AC
Description
Meaning
High voltages exist after the WIT Inverter is
powered on. Only qualified and trained electrical
technicians are allowed to perform operations.
Do not touch a running inverter because it
generates high temperatures on the shell.
Indicates the position for connecting the PE
cable.
Residual voltage exists after the WIT Inverter is
powered off. It takes 5 minutes to discharge to
the safe voltage.
Remind operators to refer to the manual before
installing and operating the WIT Inverter.
Direct Current.
Alternating Current.
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