Request for Proposal - RCCC - Buildings 555 & 570 - Replace HVAC Units with Chilled Water-Hot Water System, CC-080079-00

The contract involves replacing the aging mechanical infrastructure at the RCCC campus, specifically the rooftop HVAC units serving buildings 555 and 570, which have exceeded their useful life. Due to updates in the California Mechanical Code since 2016, direct expansion refrigeration systems can no longer be used as replacements in I-3 occupancies, prompting a shift toward centralized hydronic chilled water plants that provide cooling through custom chilled water air handlers. This upgrade aligns with Sacramento County’s Climate Action Plan requiring an 85% reduction in carbon emissions from 2021 levels by 2045, driving the transition away from natural gas-powered HVAC units to air source heat pump systems for both cooling and heating. The centralized plant will receive electrical power from the existing South electrical yard via a new feeder, ensuring integration with the current infrastructure. This solicitation, posted by the California Department of General Services and the County’s Construction and Property Services Division, seeks proposals for this HVAC system replacement project with a response deadline of April 30, 2026. The project underscores the county’s commitment to sustainability and regulatory compliance by addressing both refrigerant restrictions and climate goals through modernized, energy-efficient HVAC technology. Additionally, a proprietary information agreement ensures confidential handling of any data submitted by consultants during the proposal process, safeguarding sensitive information and assigning indemnification responsibilities. Key contacts for this project include an Associate Mechanical Engineer and a Senior Contract Services Officer, both reachable through provided emails and phone numbers for further inquiries.