The contractor shall provide all personnel, equipment, tools, materials, supervision, and quality control necessary to perform refrigerant circuit repairs on two (2) Liebert cooling units (Model: DS10... The contractor shall provide all personnel, equipment, tools, materials, supervision, and quality control necessary to perform refrigerant circuit repairs on two (2) Liebert cooling units (Model: DS105AUA1SI036S) at the 180th Fighter Wing facility, as defined in this Performance Work Statement. Contractor shall be minimum level 1 certified with Vertiv (manufacturer) to service equipment.