The purpose of this project is to upgrade the Mechanical and Electrical rooms in Lower Concourse E and E-Satellite (all levels); It includes the replacement of equipment within those rooms as well as any necessary adjustments to the rooms to accommodate the new equipment and/or retrofit the existing equipment to comply with the current code. The professional design services scope includes, but it not limited to, the replacement of existing air handling units (AHU), the modification and/or installation of a new air conditioning system; the replacement of existing panels boards, transformers and circuit breakers; allowances for structural repairs for the rooms; allowances for expansion of the room's footprint; patch/paint/repair existing walls; installation of new equipment pads; replacement of existing doors and hardware; water leak repairs; firestopping of pipe penetrations and modifications to the existing fire protection system: electrical work associated with the existing equipment replacements; temporary utilities, power during the project duration and access control systems installation and/or adjustments.