Parallel Mode Operation | Falcon FN6KRM-2TX, FN4KRM-2TXI instruction

9.0PARALLEL MODE OPERATION

9.1How 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.

9.2How 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.