Amend 002 - IIJA LIT ATCT, HVAC, Replace Boiler, Controls System

GDS Notes

• Estimated value: No budget/value provided; offerors to propose pricing
• Bid bond required: No
• Mandatory site visit: Yes
• Local integrator required: No
• Construction beyond panels: Yes
• PLC details: PLCs/RTUs mentioned but brands/models not specified. The RFP states that all controls shall be replaced and have the capacity to manage and expand to control all HVAC systems throughout the facility.
• HMI details: HMI/SCADA mentioned but specific software not specified. The new system shall include a new computer interface/control work station, with Enterprise Server software installed. Contractor shall create new EBO graphic page, and create new...
• Comms details: Network infrastructure mentioned but specific media/protocols not detailed. The contractor shall provide and install all new CAT6 cable and ring topology network as required for a fully operational system.
• Confirm PLC platform, firmware, programming environment, and whether standard libraries/naming conventions are required.
• Clarify communications path (licensed/unlicensed/cellular), polling rates, and any radio path study or coverage constraints.

Integration Checklist

• Confirm existing site inventory, I/O counts, and any required standards (tagging, alarms, naming).
• Request current drawings, network diagrams, and as-built documentation (or plan for discovery).
• Define acceptance testing: FAT/SAT steps, cutover plan, and rollback expectations.
• Confirm PLC platform, programming environment, licensing, and source code handoff requirements.
• Clarify communications path, latency constraints, polling rates, and any coverage/path study requirements.

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