User`s manual

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User’s Manual—Read before using this equipment

To determine if an appliance or tool will operate with this inverter, run a test. This inverter will

automatically shut down in the event of an output overload, so there is no danger of damaging

either the inverter or the equipment. When lit, a red LED indicator signals a fault.

PLANNING THE INVERTER SYSTEM

Any large wattage inverter system requires planning before installation. There are several steps to

the planning process so the user must determine the following:

• Maximum inverter wattage required.

• Operating time (run time) needed between battery recharges.

• Battery bank capacity in amp-hours.

• Charger requirement to charge batteries within a practical time.

• Distance between battery bank and inverter.

DETERMINING MAXIMUM APPLIANCE WATTAGE

Microwave oven speciﬁcations list cooking power (watts) and appliance power. Appliance power

is the AC load the inverter has to supply. Do not exceed the 2,000 watt maximum AC load or the

inverter will shut down.

Most other electrical tools, appliances, and audio/video equipment have labels that list the unit’s

power requirements in watts. If the tool or device is rated in amps, multiply the amps by 120

(120V AC) to determine the watts. For example, a power tool rated at 4 amps will draw 480

watts.

Remember to consider the startup surge that motorized appliances will cause. Do not exceed the

2,000 Watt surge rating of this inverter. This can cause immediate overload shut down.

At 1,000 watts continuous output, this inverter requires a DC power supply (battery bank) that

can continuously supply 100 amps at 24V DC for the duration of the run time.

CONFIGURING THE BATTERY BANK

To determine the minimum battery ampere-hour rating that you will need to operate appliances

from the inverter and any DC appliances powered by the battery bank, follow these steps:

1. List the maximum continuous wattage that the inverter has to supply.

2. Estimate the number of hours the appliances will be in use between battery recharges. This

will vary depending on appliances. For example, a typical home-use coffee maker draws

500 watts during its brew time of 5 minutes. It maintains the temperature of the pot, requir-

ing 100 watts. Typical use of a microwave oven is only for a few minutes. Some longer

operating time appliances are lamps, TVs, computers and refrigerator/freezers.

Determine the total watt-hours of energy needed. This is done by multiplying average power

consumption in watts by hours of run time. For example: 500 watts for 10 hours = 5,000 watt

hours. To get an estimate of the maximum current (in amps) that a battery bank must be capable

of delivering to the inverter, divide the load watts by ten. For example a 500 watt appliance load

will need 50 amps at 24 volts DC. Using the 500 watts (or 50 amps) for 10 hours example as

above, then 50 amps is needed for 10 hours. This provides us with the basic amp-hours (AH) of