Single Or Series Parallel Dual Fx Configuration - Outback Power Systems FX AND VFX SERIES Installation Manual

SERIES OR SERIES/PARALLEL DUAL FX CONFIGURATION
• This system can continuously power four 7.2kW of loads depending on which model is used.
• All non-Mobile FX AC wiring must handle 60A AC or more.
• A Mobile FX requires 30A input breakers.
Note:
• Stacking FXs in series/parallel means there are FXs directly connected to two separate 120 VAC
output legs. These legs produce 240 VAC between them (the series portion). This allows all of the
FXs to power either of the 120VAC output legs (the parallel portion). Series/parallel stacking requires
an FW-X240 Auto Transformer and must use "OutBack" stacking programming.
• When the FXs are connected in series for 120/240 VAC, the FW-X240 Auto Transformer can be
connected to the AC output; both FXs are then available on either 120 VAC output circuit. This allows
higher efficiency and better performance as heavy 120 VAC loads are powered by both FXs. The
FW-X240 Auto Transformer also allows the Master to power loads on either 120 VAC output circuit
with the Slave FX off, reducing idle power consumption and improving system efficiency.
• The Slave FX must be programmed through the MATE as a "Classic Slave'" (series stacking, no FW-X240
Auto Transformer) or as "OB Slave L2" (series/parallel stacking, FW-X240 included). The FX connected
to Port 01 of the HUB is always the Master (1-2ph MASTER)
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