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Inverter Loads
The inverter will operate most AC loads continuously within its power
rating of 4000 W. However, some appliances and equipment may be
difficult to operate, and other appliances may actually be damaged if you
try to operate them with the inverter. Please read “High Surge Loads” and
“Trouble Loads” carefully.
High Surge Loads
Some induction motors used in freezers, pumps, and other motor-operated
equipment require high surge currents to start. The inverter may not be
able to start some of these motors even though their rated current draw is
within the inverter’s limits. The inverter will normally start single-phase
motors rated at 1½ hp or less.
If a motor refuses to start, observe the
BATTERY VOLTAGE INDICATOR
while trying to start the motor. If the indicator drops below 11 V while the
inverter is trying to start the motor, this low voltage condition may be why
the motor won’t start. Make sure that the battery connections are good and
that the battery is fully charged. If the connections are good and the
battery is charged, but the voltage still drops below 11 V, you may need to
use a larger battery or DC input cables that are larger gauge and/or shorter
length.
Trouble Loads
Some appliances, including the types listed below, may be damaged if
they are connected to the inverter:
• Electronics that modulate RF (radio frequency) signals on the AC line
will not work and may be damaged.
• Speed controllers found in some fans, power tools, kitchen
appliances, and other loads may be damaged.
• Some chargers for small rechargeable batteries can be damaged. See
“Precautions for Using Rechargeable Appliances” on page vii for
details.
• Metal halide arc (HMI) lights can be damaged.
If you are unsure about powering any device with the inverter, contact the
manufacturer of the device.
CAUTION: Equipment damage
Some equipment may be damaged by the inverter’s modified sine wave output.
XPower_Inverter_5000_Owners_Guide.book Page 4 Friday, April 4, 2008 2:59 PM