The Springfield Charter Township is soliciting sealed bids from qualified mechanical contractors for the replacement of two rooftop HVAC units serving the Civic Center. The project includes removal of two existing RTUs and installation of new high-efficiency units with updated controls, economizers, and zone communication integration. Key requirements include: * Removal and disposal of two existing rooftop HVAC units * Furnishing and installing two new packaged rooftop units with integrated economizers and MERV 11 filter compatibility * Testing, balancing, startup, commissioning, and owner training * Compliance with RTU, economizer, and filter specifications * Quality and experience of contractor * Integration plan for controls and zone communication * Warranty and proposed timeline * References and project approach The award will be made to the lowest responsive and responsible bidder.