Power Derating; Declaration For Back-Up Function - LIVOLTEK Hyper-2000 User Manual

3.3 Power Derating

• Power derating is a way to protect the inverter from overload or potential faults. For a safe
operation, the inverter will automatically reduce the output power when the operating
environment is not ideal. The following are the factors that may occur power derating.
Please try to avoid them during usage.
Unfavorable environmental conditions, e.g., direct sunlight, high temperature, etc.

Over-temperature (including ambient temperature and module temperature).

Power factor (when values out of the rated values)

Over-frequency derating.

Higher input voltage value.

Higher input current value.


3.4 Declaration for Back-Up Function

• The BACK-UP function can provide to the normal household load when the grid is
disconnected. To ensure the stability of switching time and load power supply, avoid using
loads with higher starting current, such as air conditioner, high-power pump, vacuum
cleaner, and hair drier.
• The inverter has the overload protection capability. When single overload protection
occurs, the inverter can restart automatically; however, the restarting time will be
extended if it happens several times. For a faster restarting, try to turn off the large loads
and ensure the load power is within maximum limitation or remove the loads which may
cause very high start-up current surges.
• Appliances such as air conditioner are required at least 2~3 minutes to restart because it's
required to have enough time to balance refrigerant gas inside of circuits. 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 manufacturer of air conditioner if it's equipped
with time-delay function before installation. Otherwise, this inverter will trig overload fault and
cut off output to protect your appliance but sometimes it still causes internal damage to the air
conditioner.
NOTICE
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