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CAUTION:
Appliances such as air conditioner required at least 2~3 minutes to spool up because it needs to have
enough time to balance refrigerant gas inside of circuits. If a power shortage occurs and recovers in a short
period of time, it may cause damage to your connected appliances. To prevent this from happening, please check
with manufacturer of air conditioner if it has time-delay function before installation. Otherwise, this inverter will
trigger overload fault and cut off output to protect your appliance but sometimes it may still causes damage to
the air conditioner.
4.
Insert AC output wires according to polarities indicated on terminal block and tighten terminal screws. Be
sure to connect the grounding wire (
)
first.
→ Ground (yellow-green)
L
→ LINE (brown or black)
N
→ Neutral (blue)
5.
Make sure the wires are securely connected.
PV Connection
CAUTION:
Before connecting to PV modules, please install a
separately
DC circuit breaker between the inverter
and PV modules.
WARNING!
It's very important for system safety and efficient operation to use appropriate cable for PV module
connection. To reduce risk of injury, please use the proper recommended cable size shown below.
Model
Wire Size
Cable (mm
2
)
Torque value
（
max
）
SPCIII4000-24/SPCIII6000-48
1 x 12AWG
4
1.2 Nm
WARNING:
Because this inverter is non-isolated, PV modules that are accepted: single crystalline, poly crystalline
with class A-rated and CIGS modules. To avoid any malfunctions, do not connect any PV modules with possible
current leakage to the inverter. For example, grounded PV modules will cause current leakage to the inverter.
When using CIGS modules, please be sure NO grounding connection.
CAUTION:
It’s requested to use PV junction box with surge protection. Otherwise, it will cause damage on inverter
when lightning occurs on PV modules.
