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3) Check the proper hard-wire output (if used) by plugging the appliance into a recep-
tacle which is fed by the AC distribution system.
4) Apply external (shorepower or generator) AC to the hard-wired input of the inverter.
After a delay of approximately 30 seconds the internal automatic transfer switch
should activate and the "AC Source: External" and "Battery Charger" L.E.D.'s should
illuminate.
5) Remove the external AC source. The automatic transfer switch should activate
immediately, and the "AC Source: Inverter" L.E.D. should again illuminate.
Having completed this initial test the external AC source may be reapplied and all inverter/
charger functions should then be operational with no further attention required, other than
occasional status checks, as desired. You may wish to monitor progress of the charger
L.E.D's the first time through the charging process (as described in the previous chapter) to
verify proper operation of that circuit, as well.
B) Inverter ON/OFF Switch Functions
It is important understand the functioning of the ON/OFF switch of the inverter, so that
there can be no incorrect assumption about when AC is being applied within the unit, at the
duplex outlets or the AC hard-wire output.
1) The ON/OFF switch (either on the front or remote panel) controls only whether the
internal DC-AC inverter is operating. Whenever external AC is applied the internal
battery charger is operational and AC is being applied to both the duplex outlets and
the AC hard-wire output. Only shutting off the external AC at its source will prevent
AC flow through the inverter. (Note that, when external AC is available the "External"
L.E.D. remains illuminated, regardless of which position the ON/OFF switch is in.)
2) If a remote panel is connected and:
a) the front panel switch is ON, then the inverter can be controlled with the
remote ON/OFF switch.
b) the front panel switch is OFF, then the inverter remains off, regardless of the
position of the switch on the remote panel.
C) Inverter Auto-Shutdown Indications and Causes
Three "Shutdown Mode" L.E.D.s are provided to indicate an abnormal condition which has
caused the inverter to cease functioning temporarily. The indicators and likely causes are as
follows:
1) "Low Input Voltage" L.E.D.: Batteries may be permanently damaged by extreme
discharge. Therefore, the inverter monitors battery voltage and shuts off when it
reaches a critical low point (10.5 VDC for 12 volt model; 21.0 VDC for 24 volt model;
29.1 VDC for 32 volt model). Typically, this occurs when operating the inverter for
long periods without any external AC source coming on line to recharge the batteries.
18
P.O. Box 1306
Newport Beach,
California 92663
www.newmarpower.com
Phone: 714-751-0488
Fax: 714-957-1621
E-Mail: sales@newmarpower.com
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