- Outback Power Systems, Inc. Automobile Battery Charger User's Manual
Installation & Programming Manual FX & VFX Series Inverter/Charger System  Copyright 2003  OutBack Power Systems, Inc. 
   900-0027-1  19009 62
nd
 Ave NE, Arlington WA 98223 USA 
Page 10 Rev 7.2 08/26/05   Tel 360 435 6030 Fax 360 435 6019 
COMPLETE OUTBACK INTEGRATED SYSTEMS 
Shown below are complete systems of OutBack FX’s for indoor installations. The system with four FX’s is shown mounted to the 
OutBack PS4MP (Power System 4 Mounting Plate where the “4” in refers to the maximum number of FX’s that will fit). The PS4MP 
comes with six 1x20mm thread forming screws for attaching FX’s and breaker boxes. The use of an external toothed star washer 
(provided) is required on one screw on each piece of equipment in order to bite through the powder coating and ensure grounding of all 
metal components. The system with two FX’s is shown mounted to the smaller PS2MP power system mounting plate. 
The mounting plate will typically need to be bolted to the studs in a wall using at least four 1/4” or 5/16” lag bolts 2” long. In addition to 
the mounting plate, these installations are also shown with an OutBack PS4DC or PS2DC (DC breaker box), PS4AC or PS2AC (AC 
breaker box), DCAs (DC Conduit Adapter), DCCs (DC Compartment Cover), and ACAs (AC Compartment Adapter). When two or 
more FX’s are installed in close proximity such as in this installation, it may be useful to install one or more DC-12 Fan Kits inside the 
PS4DC or PS2DC (only one will fit) that will pressurize this enclosure – forcing air up through the DC Manifold and down over the 
external fins of the FXs. This will improve the battery charging performance by reducing the possibility of the FX’s limiting charging due 
to reaching their maximum allowed temperatures. The AUX output of the FX can be used to power the DC-12 Fan. 
These components are designed to complete the installation to NEC code while offering flexibility for future expansion. 
PS4DC 
PS4AC 
PS2AC 
PS2DC 










