Renato,
Yes, you can use the R99 2kW 50/200khz Transducer with the FCV295.
The correct Tap Settings that you'll need set for the FCV295 for use with the R99 are: Tap-C for the 50kHz, and Tap-B for the 200kHz.
Here is the wiring diagram for the R99 (but do not connect the Orange XID wire):