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02 Installation Instructions User Manual V1.6-2022-01-05
• Do not connect the loads which may in total exceed the maximum back-up capacity.
• Try to avoid those loads which may create very high start-up current surges such as Inverter Air-
conditioner, high-power pump etc.
• Due to the condition of battery itself, battery current might be limited by some factors including
but not limited to the temperature, weather etc.
Declaration for back-up loads
A-ES series hybrid inverters are able to supply overload power output at its Back-Up terminals.
For details, please refer to the Technical Parameters in section 3.4. However, this inverter has self-
protection derating at high ambient temperature.
Declaration for back-up overload protection
The inverter will restart itself as overload protection happens. The preparation time for restarting
will be longer and longer (max one hour) if overload protection repeats. Take the following steps
to restart the inverter immediately instead of waiting for delayed restart.
• Decrease back-up load power within max limitation.
• On PV Master > Advanced Setting > Click “Reset back-up Overload History”
Accepted loads as below:
Common household loads can be used normally; for specic loads, please refer to following
section.
• Inductive Load: 2P non-frequency conversion air-conditioner can be connected to the Back-up
side. More than 2 non-frequency conversion air-conditioners connected to Back-up side may
cause UPS mode to be unstable.
• Capacitive Load: Total power ≤ 0.6 x nominal power of model. (Any load with high startup current
at start-up is not accepted.)
• For complicated applications, please contact the Global Call Center for support.
An external AC breaker is needed for back-up connection to be isolated when necessary.
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