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1. Overview and Features
1.2.11 Battery Charging Rate Setting (Switch 6, 7 & 8)
These switches control the maximum charging rate in amps. The charge rate has 8 stages. It can be adjusted by setting these
switches as shown in the following table:
Switch 6
ON
Switch 7
ON
Switch 8
ON
APS1012SW
40A
APS2012SW
60A
Note: The charging rate depends on the battery bank size. Consult the battery manufacturer's specs for the maximum allowed
charge rate (usually 0.3 times the AH rating).
Caution! An excessively high charging rate can overheat the battery. If a small-capacity battery is
used, set the battery charge rate to the minimum setting.
1.3 Features
1.3.1 Battery Temperature Port
This port allows connection of a Battery Temperature-Sensing Cable (sold separately). The sensing function prolongs battery
life by adjusting the charge float voltage level based on battery temperature. Connect the sensor cable to the RJ11 port
labeled "Battery Temperature." With user-supplied electrical or duct tape, secure the sensor to the side of the battery below
the electrolyte level. Make sure that nothing, not even tape, comes between the sensor and the side of the battery. To guard
against false readings due to ambient temperature, place the sensor between batteries, if possible, or away from the sources
of extreme heat or cold. If the sensor cable is not used, the Inverter/Charger will charge according to its default 25°C values.
1.3.2 Communication Port (for APSRMSW Remote Control)
This port allows connection with the APSRMSW Remote Control (sold separately). The remote conrol allows the Inverter/
Charger to be mounted in a compartment or cabinet out of sight, while operated conveniently from a remote location. See
instructions packed with the remote control module for more information.
2. Battery Charger
2.1 Mode of Operation
The internal battery charger and automatic transfer relay allow the unit to operate as either a battery charger or an inverter. An
external source of AC power (e.g., shore power or generator) must be supplied to the inverter's AC input in order to allow it to
operate as a battery charger. When the unit is operating as a charger, AC loads are powered by the external AC power source.
2.2 Transfer Switching Speed
Transfer time is less than 16 milliseconds.
3. Battery
3.1 Select Battery Type
Select 12V "Deep Cycle" batteries to receive optimum performance from your Inverter/Charger. Do not use ordinary car or
starting batteries or batteries rated in Cold Cranking Amps (CCA). If the batteries you connect to the Inverter/Charger are not
true Deep Cycle batteries, their operational lifetimes may be significantly shortened. If you are using the same battery bank to
power the Inverter/Charger as well as DC loads, your battery bank will need to be appropriately sized (larger loads will require a
battery bank with a larger amp-hour capacity) or the operational lifetimes of the batteries may be significantly shortened.
Batteries of either Wet-Cell (vented) or Gel-Cell /Absorbed Glass Mat (sealed) construction are ideal. Set Switch 5 to OFF
for Wet-Cell batteries and to ON for Absorbed Glass Mat (AGM) batteries. Two 6-volt "golf cart", Marine Deep-Cycle or 8D
Deep-Cycle batteries in series are also acceptable. In many cases, the vehicle battery may be the only one installed. Auxiliary
batteries must be identical to the vehicle batteries if they are connected to each other.
ON
ON
ON
OFF
OFF
ON
32A
24A
20A (Default)
48A
36A
30A (Default)
ON
OFF
OFF
ON
OFF
ON
16A
24A
6
OFF
OFF
ON
OFF
OFF
ON
12A
8A
18A
12A
OFF
OFF
OFF
4A
6A
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