Specifications include, but are not limited to: Mechanical: 1. Removal and replacement of eight (8) packaged rooftop units with new high-efficiency, single-zone variable air volume rooftop units with variable speed first stage compressors and dehumidification capabilities. The existing roof openings are to be reused and new curb adapters provided to allow the new rooftop units to be installed on the existing curb. Packaged rooftops are to be provided with their own internal control systems with new programmable (Password Protected) thermostats as shown on the plans. For bidding purposes, Contractors shall include new control wiring from each rooftop unit to each thermostat. However, District/Engineer will evaluate the reuse of existing wiring if Contractor deems it as acceptable. The new control systems will not be required to connect to an automation system. 2. Removal and replacement of eight (8) direct-expansion split systems with new high-efficiency split systems units with dehumidification capabilities. New condensing units will be mounted on the existing roof stands and at grade. New air handling units will be located in the existing mezzanines as shown. The existing refrigerant piping and condensate piping will be removed, and new refrigerant lines are to be installed and routed to the mezzanines as shown on the plans.