Owner`s manual

Installation

2.9 Functional Test

After all electrical connections to the inverter, batteries, AC source, and sub-panel have been

completed; follow these steps to test the installation and the inverter operation.

CAUTION: Use a multimeter to verify the correct DC voltage for your particular inverter

model (i.e., 24-volt battery bank for a 24-volt inverter) and ensure the polarity of the

battery voltage is correct (battery positive connected to inverter positive terminal and

negative battery connected to inverter negative terminal).

1. Apply battery power to the inverter by closing the DC circuit breaker. The inverter will remain

OFF, but the green status indicator on the front of the inverter will quickly blink once to indicate

that DC power has been connected and is ready to be turned on.

2. Prior to turning on the inverter, make sure all AC loads (i.e., appliances) are NOT connected

to the inverters output or any AC outlets powered by the inverter.

3. Lightly press and release the inverter’s ON/OFF switch to turn the inverter ON. Verify the

inverter’s status indicator is blinking - indicating the inverter is ON.

4. Connect a light bulb no larger than 10 watts to the inverter output and verify it comes on and shines

normally. DO NOT connect anything but a light bulb, until all wiring and voltages are conﬁ rmed to

be correct.

Info: The inverter’s AC output voltage will not be correct until a load greater than

5 watts (5 watts is default setting) is connected to the inverter; or the search mode

is turned OFF with a remote display (ME-RC). The 10 watt (or greater) light bulb is

used because it is a sufﬁ cient load to bring the inverter out of “search” mode up to

full voltage.

5. Check the AC output voltage of the inverter by connecting an AC voltmeter to the output

terminals as shown in ﬁ gure 2-25 and verify the correct output voltages.

6. Press and release the inverter’s ON/OFF switch to turn the inverter off. The inverter’s status

indicator and the connected load should go off.

7. Apply AC power to the inverter’s AC input. After the AC input power is qualiﬁ ed (approximately

15 seconds), the incoming AC power will transfer through the inverter to the inverter’s AC output

and power the light bulb. Verify the inverter’s status indicator and the light bulb comes on.

8. Even though the light bulb is on, the inverter is currently disabled (off). Press and release the

ON/OFF switch on the inverter to enable (turn-on) the inverter.

9. Disconnect the incoming AC power to the inverter. Verify the light bulb remains on and is now

If the inverter passes all the steps, the inverter is ready for use. If the inverter fails any of the

steps, refer to the Troubleshooting section.

Figure 2-25, AC Voltage Checks

AC Terminal Block

AC Output

120 Vac

(± 5%)

Neutral to Ground

< 0.5 Vac