Exhibit A - Sure Comfort Vantix Universal Heat Pump Specifications

This is a detailed equipment specification document for the City of Florissant's HVAC replacement project at Sunset Nature Lodge. The project requires the installation of three Sure Comfort Vantix Line Side-Discharge Universal Heat Pumps, Model RD18AY Series, along with compatible inverter-driven air handling equipment and electric backup heat. Each unit has a capacity of 5 tons with cooling efficiencies up to 19 SEER2/13 EER2 and heating efficiencies up to 10 HSPF2, utilizing R-454B refrigerant with inverter-driven variable speed compressor technology. The specification document mandates that no substitutions, alternates, equals, or approved equivalents will be accepted, establishing strict equipment requirements for all bidders. The project encompasses removal of three existing HVAC split systems, proper refrigerant recovery in compliance with EPA regulations, installation of new equipment with factory-approved communicating controls, and comprehensive refrigerant piping work including inspection, flushing, and replacement of damaged line sets as necessary.

The specification establishes comprehensive technical and operational requirements for the heat pump systems, including detailed performance standards, refrigerant specifications, and component compatibility requirements. The document emphasizes strict adherence to the specified equipment model and features, with no latitude for substitutions or equivalent products. All installation work must include proper disposal of existing components, protection of building finishes during removal, and full commissioning of new systems with factory-approved controls to ensure proper operation and integration with existing building infrastructure.