TBC1 :
Yes, they are compatible.
In the Corsair website it is mentioned "The 240mm top-mounted radiator" In the Gigabyte Sumo 4192 the top is filled by the PSU. The only way i can think of is to remove the back 2x 120mm fans and replace it with the Radiator given there is space.
Is this true or is there mabe another way?