SINGLE PHASE HI 10/12kW | User Manual19
Connecting the AC
Before connecting to the grid, a separate AC breaker must be installed between the inverter and the grid,
and also between the backup load and the inverter. This will ensure the inverter can be securely disconnect-
ed during maintenance and fully protected from over current. For the 10/12kW model, the recommended
AC breaker for backup load is 100A. For the 10/12kW model, the recommended AC breaker for grid is 100A.
There are three terminal blocks with “Grid” “Load” and “GEN” markings. Please do not misconnect the input
and output connectors.
GEN/AUX
Generator connection.
GRID
This works like a conventional grid-tied inverter. It is both an input and output
connection for non-essential load and supply.
LOAD
Connection of essential loads such as lighting, security systems, and internet.
Model Wire Size Cable (mm
2
) Torque Value (Max.)
10kW / 12kW 4AWG 21.1 1.2N.m
WARNING
All wiring must be performed by qualied personnel. System safety and ecient operation need to
use appropriate cable for AC input connection. To reduce the risk of injury, please use the recom-
mended cable below.
Please follow the steps below to implement GRID, LOAD, and GEN port connections:
1. Before making Grid, Load, and Gen port connections, make sure to turn o the AC breaker or
disconnector rst.
2. Remove a 10mm sleeve from each wire, unscrew the bolts, insert the wires according to the polarities
indicated on the terminal block and tighten the terminal screws. Ensure the connection is complete.
3. Then, insert AC output wires according to the polarities indicated on the terminal block and tighten the
terminal. Make sure to connect corresponding N wires and PE wires to related terminals as well.
4. Ensure the wires are securely connected.
5. Appliances such as air conditioners are required at least 2-3 minutes to restart because it requires
enough time to balance refrigerant gas inside the circuit. If a power shortage occurs and recovers in a
short time, it will cause damage to your connected appliances. To prevent this kind of damage, please
check with the air conditioner manufacturer if it is equipped with a time-delay function before installa-
tion. Otherwise, this inverter will trigger an overload fault and cut o output to protect your appliance,
but sometimes it still causes internal damage to the air conditioner