Installation
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Due to our policy of continuous product innovation, some specifications may change without notice.
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Backup Load Connection
Available Backup Power
Maximum discharging power/current: 7.5kVA / 31.25A
Peak discharging power/current (for 10s) : 9.0kVA / 37.5A
Considering the available backup power, please connect the loads to the backup panel.
After the installation, please check whether the LG ESS Home 8 can provide backup power properly
in "Backup Testing Guidelines".
-
The backup load will be supplied by the LG ESS Home 8 and PV during a power outage.
-
The non-backup load will power down during a power outage.
Backup Load Considerations
The backup power is a limited power source stored in the battery system. Depending on the load
types, the stored energy in the battery may be drained rapidly or the system may restart due to
big load changes (likely due to the inrush current), or the system may be shut down to protect the
battery and the whole system. Please be careful to use the battery system in backup operation by
referring to the following table.
Classification
Types of Loads
General
appliance
Small plug-in appliance such as TVs, Laptops/PCs, Radios, Routers, and Mobile
chargers
Lightings (Compact fluorescent or LED recommended)
Refrigerator and freezers.
Small kitchen appliances (Coffee makers, Cookers, Microwaves)
Large load
AWHP (Air to water heat pumps) / Electric water heaters
Electric cooktops / Electric ovens
Spas / Saunas
Washers / Dryers
Hair Dryers
EV Chargers
High inrush
load
Air conditioners
Pool pump, Well pump, Sump pump
y
Do not use loads exceeding the maximum power or current in the backup load, which may shut
down the whole system.
y
Using a large load can rapidly drain the battery.
y
For a high inrush load, please use the soft starter to consider the LRA spec on the labels from the
loads. Depending on the base power consumed for backup operation, the available supply to the
inrush current from the LG ESS Home 8 may vary.
y
When using an air conditioner, it is especially important to perform a backup test. If the system
frequently restarts, use a soft-starter for the air conditioning unit.
y
The application is subject to change for appliance improvement purposes without notice.
