A team of national laboratory, university, and industrial participants completed the preconceptual design for the Tokamak Fusion Core Experiment (TFCX), a long pulse, plasma ignition machine, and required support facilities. Functional and Operational Requirements (F&ORs) for the TFCX support facilities were developed as the basis for the preconceptual design, ensuring that adequate housing and site would be provided to support the tokamak machine and auxiliary systems. This paper presents partial F&ORs developed for the base case TFCX machine, the nominal superconducting option (liquid helium-cooled magnets), and describes the resulting preconceptual design.