• Upgrading of existing pneumatic HVAC systems to DDC, controlled through a Tridium Niagara Building Automation System, including air handlers, re-heat (add) VAV’s, fan powered VAV’s (add), VFD drives, fans, pumps, controls, and partial elimination of existing pneumatic systems. Any inaccessible pneumatic system components can remain in place. (No demo of existing materials to access pneumatics. If accessible without demolition of existing materials, existing pneumatic components are to be removed and discarded). • Professional Engineered Drawings for the project. • All disconnected pneumatic lines that are still feeding other operable units are to be capped off with a barbed insert plug until full replacement of each system. • Replacement and/or upgrade existing VAV boxes throughout the facility. • Replacement of existing hot and/or cold deck supplied air handler units including all demolition, housekeeping pads, ductwork, controls, plenums, electrical and plumbing connections needed. • Replacement of existing pneumatic exhaust fan assemblies and pneumatic controls to DDC controlled. • Replacement of existing fan powered VAV boxes to DDC controlled. • Replacement of existing fin tube units with DDC controlled units. • Replace existing pneumatically or DDC controlled re-heat VAV boxes with new DDC controlled re-heat VAV air handlers. • Add new automatic and manual balancing valves, isolation valves, and associated fittings for proper flow regulation on VAV’s. • Install Y-strainers at critical hydronic equipment to protect against debris and fouling. • Pressure test and inspect all hydronic modifications in accordance with ASHRAE and local codes. • Furnish and install a centralized Tridium Niagara BAS that integrates all HVAC components: AHUs, VAVs, and supporting equipment. • Provide full graphics package for real-time monitoring and trend tracking. • Set up user permissions, alarm notification, and remote access capabilities. • Train building operations staff on system interface and maintenance. • All new VAV air handling systems to be hydronic and air balanced by a third-party licensed contractor. • Daily cleanup of work area of debris, tools, parts, and garbage. This includes vacuuming the carpet where debris is present at the end of each workday. • 10 business days minimum notice for any HVAC unit or device shutdown for internal planning requirements.
