Specifications include, but are not limited to: The DTA is seeking qualified firms to provide all labor, materials and tools to supply and install new HVAC Equipment. Scope of work includes supplying new air exchanger unit and cooling for the maintenance offices and breakroom areas, including all supply and return air ducts, all electrical connections, connections to electronic building monitoring systems, and associated work for a complete system. All equipment and materials supplied must be commercial grade equipment suitable for a heavy use industrial setting. 2. In conjunction with this work, the DTA is installing building ionization systems in air ducts to reduce the amount of particulates and contaminants in the air in occupied spaces. The selected Contractor will coordinate work on the HVAC system with the selected ionization system contractor, and will make available ducts and electrical connections accessible as needed to ensure that the ion system can be installed in a timely manner. 3. In conjunction with this work the DTA is seeking qualified firms to supply an updated Building Control System to replace the current Metasys system. Specifications for that system are under a separate Request for Proposals. Contractor will coordinate work on the HVAC system with the selected Building Control System Contractor, including making ducts and electrical connections accessible as needed to ensure that the Building Controls System can be installed in a timely manner to operate the additional equipment being added to the System.