Step 4: Wiring The Inverter; Batteries; Battery Bank Requirements; Battery Cable Requirements - Xantrex XW4024 230 50 Installation Manual

Inverter/Charger Installation

Step 4: Wiring the Inverter

Batteries

Battery Bank Requirements

Battery Cable Requirements

2–12
This section provides procedures for making AC and DC connections between
the Xantrex XW Inverter/Charger, the batteries, and the inverter load sub-panel.
See the FAQs section of the Schneider Electric Web site for information on
determining battery bank requirements.
Consider the following recommendations for battery use:
• Use only deep discharge types for inverter applications.
• Use the same battery type for all batteries in the bank.
• Use only batteries from the same lot and date in your battery bank. This
information is usually printed on a label located on the battery.
CAUTION: Damage to Equipment
The Xantrex XW Inverter/Charger is intended to operate with batteries as its
source of DC power. Do not connect DC power sources, such as PV arrays, wind
turbines, or micro-hydro turbines, directly to the Xantrex XW Inverter/Charger
without a battery. Connect DC power sources to a charge controller such as the
Xantrex XW Solar Charge Controller instead. If DC power sources are connected
directly to the inverter, the DC rating of the inverter can be exceeded and the
inverter can be damaged.
The DC voltage of the inverter must match the nominal voltage of the system and
all battery-connected devices. If the inverter is a 24-volt inverter, then the battery
bank and all battery-connected devices in the system must be configured for
24 volts.
Important: The minimum recommended battery bank is 100 Ah. The inverter is
designed to operate with batteries and should not be operated without them.
Also, do not allow the battery bank to become completely discharged. If the
voltage of the battery bank falls below 10 volts, the Xantrex XW Power System
will not operate.
WARNING: Fire Hazard
Undersized cables can overheat and melt, creating a fire hazard when subjected
to heavy (peak) loads. Always use cable of proper size and length, rated for the
amperage of the inverter and batteries.
This manual for use by qualified personnel only
975-0384-01-02