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9.0 PARALLEL MODE OPERATION
9.1 How to configure FN rackmount models for transformer module, parallel or N+1 mode
operation.
Up to (4) like kVA FN model UPS units may be connected to their respective transformer modules and/or in
parallel, in single UPS increments, to provide a single 3-24kVA UPS output a true N+1 redundant output. This
is accomplished by connecting each UPS to be paralleled, wired to a single
utility source rated for the com-
bined UPS load. The UPS outputs should be connected together. A licensed electrician can provide the hard-
wire output connections and circuit. Each individual UPS output must have a branch rated circuit breaker as
specified prior, installed between the UPS output and load.
FN models have two special bus connectors located on the UPS rear panel that supports
interconnection of the transformer module and/or paralleled UPS units. (1) parallel UPS interface kit must be
purchased from Falcon for each UPS to be paralleled. The cable kit is shipped with each transformer module
inside the shipping container. The interface kit contains (1) daisy chain bus cable (3076), (1) wrap around bus
cable (3077), detailed installation instructions and assorted hardware. The Falcon part number for the kit is
UA88385.
9.2 How to connect the Battery Module to the UPS module.
1. Open the battery connector cover plate from the UPS module rear panel and connect the supplied
red, black and green battery cable connectors to the respectively colored mating connectors on the
UPS module.
2. On the battery module rear panel verify the battery circuit breaker is in the off position. Next, open
the top battery connector cover plate. Connect the red, black and green connectors on the opposite
side of the battery cable to the respectively colored mating connectors on the battery module. Turn
on the battery module circuit breaker. The UPS may now be powered up.
3. To add a more battery modules, remove the lower cover plate on the first module and connect a the
supplied battery cables to this connector on the previous battery module.
For more details, contact Falcon Sales or Support Engineering.
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