Outback Power Systems VFX Series Programming Manual - Manual (Page 25)

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3. OutBack Series
• 2-10 FXs are wired to two 120VAC output legs producing 240 VAC between them.
• This system requires an FW-X240 or PSX-240 Auto Transformer.
• 240VAC can be produced on one leg if the load is ten amps or less; an FX on one leg can power
loads on the other leg, helping to balance loads.
• The AC input source (generator or grid) must be 240VAC between both legs.
4. OutBack Series/Parallel
• Unique to OutBack, the loads are balanced between two 120VAC legs, changing between series and
parallel as needed.
• An FW-X240 or PSX-240 Auto Transformer is required to balance the loads.
• This system allows for larger AC loads without overloading either of the FX 120 VAC outputs; it also
allows for 240 split-phase using only one FX.
3 kW 120 VAC
6 kW
120 VAC
Leg 2
LOAD
6 kW
120 VAC
Leg 1
3 kW 120 VAC 12 kW
240 VAC
Leg 1
and
Leg 2
or
3 kW 120 VAC 3 kW 120 VAC
X-240
3 kW 120 VAC
3 kW 120 VAC
LOAD
6 kW
240 VAC
Leg 1
and
Leg 2
or
3 kW
120 VAC
Leg 2
3 kW
120 VAC
Leg 1
X-240