6
Grounding
the
PV
generator
Comply with the local requirements for grounding the PV modules
andmodules and the PV generator. Growatt recommends connecting
the generatorthe generator frame and other electrically conductive
surfaces in a mannera manner which ensures continuous conduction
with ground these in orderin order to have optimal protection of the
system and personnel.
Permanent
connection
The inverter may only be operated with a permanent connection to
the public power grid. The inverter is not intended for mobile use.
Any other or additional use is not considered the intended use. The
manufacturer/supplier is not liable for damage caused by such
unintended use. Damage caused by such unintended use is at the sole
risk of the operator.
PV modules Capacitive Discharge Currents
PV modules with large capacities relative to earth, such as thin-film
PV modules with cells on a metallic substrate, may only be used if
their coupling capacity does not exceed 1uF. During feed-in
operation, a leakage current flows from the cells to earth, the size of
which depends on the manner in which the PV modules are installed
(e.g. foil on metal roof) and on the weather (rain, snow). This
"normal" leakage current may not exceed 50mA due to the fact that
the inverter would otherwise automatically disconnect from the
electricity grid as a protective measure.
NOTICE
NOTICE
NOTICE
With the appropriate settings, the unit will comply with the requirements specified in the
following standards and directives
UL1741,UL1741SA
IEEE1547.2018,CA Rule21,Rule 14(HECO Compliant)
CSA C22.2
FCC Part15
UL1699B
Growatt can preset special grid parameters for other countries installation locations
according to customer requests after evaluation by Growatt. You can make later
modifications yourself by changing software parameters with respective communication
products. To change the grid-relevant parameters, an access code is required; please
contact Growatt support if needed.
Isolate the MIN TL-XH US Inverter securely from the grid ,grid, the PV generators and the
HV battery using AC and DC Switch. DC and AC Switch shall be able to disconnect all
ungrounded conductors after installation.
2.4 Certified countries
2.5 DC and AC disconnect
2.6 Grounding the PV modules
2.7 Appropriated Usage
2.7.1 Assembly Warnings
The MIN TL-XH US series product is a transformer-less inverter and has no galvanic
separation. Therefore, the inverter may only be operated with ungrounded PV array. Do
not ground the DC circuits of the PV modules connected to the MIN TL-XH US inverter as
it must comply with National Electric Code, Article 690.35 'Ungrounded Photovoltaic
Power Systems' and local regulations for ungrounded systems. Only ground the
mounting frame of the PV modules. If you connect a grounded PV array to the MIN TL-XH
US Inverter, the fault LED will flash,andflash, and there is aan error message 'PV ISO
LOW'appearedLOW' appeared on Shinesever or Shinephone.
The Growatt Inverter converts DC Current from PV generator into AC current. The
inverter is suitable for mounting indoors and outdoors. You can use the AC current
generated as follows:
House grid
Energy flows into the house grid. The consumers connected, for example,
household devices or lighting, consume the energy. The energy left over is
fed into the public grid. When the Growatt is not gerneratinggenerating
any energy, e.g., at night, the consumers which are connected are
supplied by the public grid.Thegrid. The Growatt does not have its own
energy meter. When energy is fed into the public grid, the energy meter
spins backwards.
Public grid
Energy is fed directly into the public grid. The Growatt is connected to a
separate energy meter. The energy produced is compensated at a rate
depending on the electric power company.
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.
U n a u t h o r i z e d r e m o v a l o f n e c e s s a r y p r o t e c t i o n s ,
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 voltages, cover the entire solar array with
dark material prior to connecting the array to any
equipment.
WARNING
5
