Functional Test - Magnum Energy MM Series Owner's Manual

2.0 Installation

Functional Test

After all electrical connections to the inverter, batteries, AC source,
and loads (using a sub-panel) have been completed, follow these steps
to test the installation and the inverter's operation.
1. Check the battery voltage and polarity before connecting the bat-
teries to the inverter. Use a multimeter to verify 10 to 15 VDC at the
batteries' positive and negative terminals.
2. Apply battery power to the inverter by switching the DC disconnect
On (or close 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.
3. Prior to turning on the inverter, make sure all connected loads (e.g.,
appliances) are switched OFF or disconnected from the AC outlets.
4. a. If a remote switch is connected, press the ON/OFF switch to turn
the inverter on.
b. If there is not a remote switch connected, lightly press and
release the inverter's ON/OFF power switch — located on the top of
the inverter — to turn the inverter on.
Verify the inverter's status indicator is blinking – indicating the inverter
is providing AC power.
5. Check the output voltage of the inverter by connecting a true RMS
multimeter to the outlets powered by the inverter. Verify the voltage is
120 VAC +/- 5 VAC. If not using a true RMS meter, the output AC volt-
age could indicate from 90 to 130 VAC.
6. Turn on or connect a load to the outlets and verify it comes on.
Continue to keep the load connected and turned on.
7. Press the remote ON/OFF switch to turn the inverter off. If the
remote is not used, press and release the inverter's ON/OFF power
switch to turn the inverter off. The inverter's status indicator and the
connected load should go off.
8. 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 connected load. Verify the inverter's status indicator and the con-
nected load comes on.
9. Even though the connected load is on, the inverter is currently dis-
abled/off. Press the remote's ON/OFF switch (or press and release the
ON/OFF power switch on the inverter) to enable/turn-on the inverter.
10. Disconnect the incoming AC power to the inverter. Verify the con-
nected load remains on, but now is powered by the inverter.
If the inverter passes all the steps, the inverter is ready for use.
If the it fails any of the steps, refer to the Troubleshooting section.
© 2010 Magnum Energy, Inc. 21