9
OPERATION
Caution:
U
Always switch off the appliance and inverter before recharging the batteries or starting
the vehicle engine.
U
connected to the mains grid. Normally AC wiring contains a M.E.N. link, this neutral to earth
link will damage the inverter.
U
This inverter is designed for direct connection to appliances however extension leads and
power boards can be used.
PROTECTION FEATURES
Projecta inverters include sophisticated circuitry that monitors the operation of the inverter and turns
the inverter off if a problem is detected. The “Fault” light will illuminate and an audible alarm will be
heard if this occurs. This prevents damage to the inverter, batteries or appliance being powered.
U Low Battery - This feature will sound a continuous alarm when the batteries powering the
inverter are low (21 Volts). It is recommended that the appliance is turned off, then the inverter
is also turned off and the batteries are recharged.
If the appliance is allowed to continue to run, the inverter will turn off when the batteries are very
low (20.0 Volts) to prevent damage to the batteries or inverter. This will cause a sudden disruption of
power to the appliance that may cause problems for some appliances, for example most computers
that need to be shut down properly.
U Overload - This feature will sound an alarm and turn the inverter off when the total load
connected to the inverter exceeds the inverter’s rating (see “Determining suitable load/appliance”)
This may also occur due to highly inductive loads such as any appliance with a motor causing a
sudden peak load on the inverter.
If this occurs, switch “OFF” the appliance and the inverter
After 2 seconds turn the inverter “ON” and the inverter will provide power again. Turn the appliance
“ON”, if the inverter shuts down more than 3 times, it is likely that the appliance is drawing more
load than the inverter can supply, and a larger inverter would be recommended.
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temperature. This may occur from continuously running a high load for long periods, due to high
ambient temperatures or due to poor ventilation around the inverter. If this occurs, turn the inverter
off and allow to cool for at least 15 minutes before resuming operation. Where possible reduce the
load on the inverter and improve ventilation.
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