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This grid-tied inverter system operates only when properly connected to the AC
–distribution network. Before connecting the inverter inverter to the power
distribution grid, contact the local power distribution grid company. This
connection must be made only by qualified technical personnel to connect, and
only after receiving appropriate approvals, as required by the local authority
having jurisdiction.
2.2. Qualification of skilled person
The GROWATT Inverters are designed and tested according to international
safety requirements; however, certainsafety precautions must be observed when
installing and operating this inverter. Read and follow all instructions, cautions
and warnings in this installation manual. If questions arise, please contact
Growatt's technical services at +86 (0)755 2951 5888.
2.3. Safety instruction
2.4. Assembly Warnings
Symbol description
WARNING
Prior to installation, inspect the unit to ensure absence of any
transport or handling damage, which could affect insulation
integrity or safety clearances; failure to do so could result in
safety hazards.
Assemble the inverter per the instructions in this manual. Use
care when choosing installation location and adhere to
specified cooling requirements.
Unauthorized removal of necessary protections, improper
use, incorrect installation and operation may lead to serious
safety and shock hazards and/or equipment damage.
In order to minimize the potential of a shock hazard due to
hazardous voltage, cover the entire solar array with dark
material prior to connecting the array to any equipment.
Grounding the PV modules： The Growatt inverter is a
transformerless inverter. That is why it has no galvanic
separation. Do not ground the DC circuits of the PV modules
connected to the inverter. Only ground the mounting frame of
the PV modules. If you connect grounded PV modules to the
Growatt inverters, the error message "PV ISO Low".
Comply with the local requirements for grounding the PV
modules and the PV generator. GROWATT recommends
co n nec t ing the gene rato r fr ame and othe r el ectr ical ly
conductive surfaces in a manner which ensures continuous
conduction with ground these in order to have optimal
protection of the system and personnel.
CAUTION
2.5. Electrical Connection Warnings
Symbol description
DANGER
The components in the inverter are live. Touching live
components can result in serious injury or death.
Do not open the inverter except the wire box by qualified
persons.
Electrical installation, repairs and conversions may only be
carried out by electrically qualified persons.
Do not touch damaged inverters.
Danger to life due to high voltages in the inverter
There is residual voltage in the inverter. The inverter takes
20 minutes to discharge.
Wait 20 minutes before you open the wire box.
Persons with limited physical or mental abilities may only work
with the Growatt inverter following proper instruction and under
constant supervision. Children are forbidden to play with the
Growatt inverter. Must keep the Growatt inverter away from
children.
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