Ground-Fault Circuit Interruption Breakers; Functional Test - Magnum Energy MMS1012 Owner's Manual

Ground-Fault Circuit Interruption (GFCI) Breakers
If installing this inverter in the wiring system of a mobile application
(RV, boat, or truck), a Ground Fault Circuit Interrupter (GFCI) must
be installed to protect all branch circuits powered by this inverter. In
compliance with UL standards, Magnum Energy tested the following
GFCIs and found that they function properly when connected to the
inverter's AC output.
Shock Sentry
Leviton Smart Lock #8899-A
Hubbel #GF520EMBKA
WARNING: Risk of electric shock. Use only the GF-
CIs [receptacles or circuit breaker(s)] specifi ed in this
manual. Other types may fail to operate properly when
connected to this inverter.

Functional Test

After all electrical connections
and loads (using a sub-panel)
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 14 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 in-
verter 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
voltage could indicate from 90 to 130 VAC, depending on the bat-
tery voltage.
© 2010 Magnum Energy, Inc.
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to the inverter, batteries, AC source,
have been completed, follow these
2.0 Installation
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