How long I can use if I want to run 1000w air conditioner?

Q: My air conditioner is 1000w, how long I can use it?
A: That's need see how big battery bank you have, watt=volt x amp,
1000w/12v=83amp, bank need 4-5 times to turn it on, means 83ax5=415amp
Otherwise, your battery bank will be very easy to low down the voltage when turn on the air conditioner , remember, this is not about inverter, it's about your battery bank has enough power or not.

What is the situation of the led light when turn on the LF inverter?

1.When the LF inverter is powered on under non-power save mode, all the led lights will be on for one second, while red light going out, then the green light of the related function will be on (INV ON green light will be on when the inverter functions; BTY ON green light will be on when the battery is charging or UPS functions).
2.When the LF inverter is powered on under power save mode, all the led lights will be on for one second, while red light going out, and all the led lights are off under standby status (INV ON green light will be off when the inverter functions without load; BTY ON green light will be off when the battery is charging without grid power).

What does it mean for different buzzer alarm situation on LF inverter?

1. Low voltage alarm: INV ON green light and red light will be on, with short alarm once every five seconds; there is an output, and the inverter does not turn off.
2. Low voltage shutdown: no light will be on with buzzer alarm, and there is no output.
3. High voltage alarm: INV ON green light and red light will be on, with short alarm once every one second, and there is an output; the alarm lasts about one minutes (57 times) then only INV ON green light will be on, still with buzzer alarm, and there is no output.
4. High voltage shutdown: after the inverter is turned on, the buzzer alarms, INV ON green light will be on for 10 seconds, then all lights will be off, and there is no put.
5. Temperature protection: INV ON green light and red light will be on, with 3 times of short alarm and later the buzzer alarms without output of the; then no light will be on, but the fan will be running; after the temperature drops, the fan stops running, and the inverter keeps alarming without output.
6. Overload protection: there are three levels of this situation: slight overload (the overload is no more 400w than the set load), INV ON green light and red light will be on without alarm, and the inverter is working without off; moderate overload (the overload is 400w-1000w more than the set load), INV ON green light and red light will be on with a short alarm once every one second, and there is an output; one minute after, the buzzer alarms without output, and no light will be on; heavy overload (the overload is about 1000w more than the set load), INV ON green light and red light will be on with a short alarm once every one second, and there is an output; 10 seconds after, the buzzer alarms without output, and no light will be on.
Note：If the LF inverter is not equipped with the function of automatic start after alarm and shut down, please switch off the inverter and restart it .

How to use AC INPUT for battery charger?

When total on load power <1500w (0-5A), please use AC input socket for charging .
When total on load power >1500w and <3000w（0-10A）(with a 3000w-inverter), please use AC input H line bank for charging. 
 

What is safety precautions when use power inverter?

You’d better place the power inverter on a reasonably flat surface. DO NOT operate the inverter, if the inverter is being operated on any rough surface, because it may come in contact with electricity which may lead to serious injuries or death.

1. Avoid placing the inverter on or near heading vents, radiators or any other sources of heat. Avoid the inverter to be placed under the direct sunlight.
2. In order to properly disperse heat generated while the inverter is in operation, keep it well ventilated.
3. In order to keep inverter working in a safe environment, prevent it from flammable things, especially some flammable gases.

How to use power inverter?

1. First: Please make sure the switch is “OFF”.
2. Second: Connect battery to the DC side of inverter, so that you can power the “INVERTER” on.
 Note: a). The battery voltage must match the inverter’s voltage  b). Positive pole and Negative pole must be correctly connected.)

How to test the big transformer for LF inverter?

Q: How to test the big transformer for LF inverter?
A: The big transformer has two thin lines and two thick lines, you can connect the two thin lines to the utility AC 220V, and then test the two thick lines to see if there has about 14v of voltage, if yes, then the transformer is good.