Z1da--Retro-Commissioning Mechanical Corrections

Retro-Commissioning Mechanical Corrections and Construction Services related to the Retro-Commissioning Mechanical Corrections construction project located at the Lebanon VA Medical Center, 1700 S Lincoln Avenue, Lebanon, PA 17042. Replacement of AC-9-1: This cooling-only air handling unit (AHU) is positioned at high level in the Penthouse of Building 1 and cools the elevator machinery. The unit shall be replaced in kind and a new duct main shall be installed. All ductwork branches shall remain unchanged, as practical. New AHU suspension structure and a new hoist hook shall be installed in the Penthouse. The existing Chilled Water (CHW) piping shall be fitted with manual valves allowing AC-9-1 to be isolated without inhibiting the operations of the adjacent AHU. Part of the (CHW) piping shall be relocated so that it does not pass over the top of an existing electrical cabinet. The thermostat shall be relocated from the exterior wall to the column near the elevator machine room. Replacement of AC-1-24: The existing AHU serving the Gym in Building 24 is positioned at high level and shall be removed entirely, including all supply air ductwork. A new AHU shall be installed in the store room, which shall be repurposed to serve as a mechanical room. The new AHU shall include CHW cooling and steam heating coils, including condensate pump. A mixed air system shall be incorporated, including a return fan at high level. New exhaust hardware shall be included. Ductsox shall be used for supply air, which is positioned at high level above the Gym space. Replacement of ERU-1-22: The existing energy recovery unit (ERU) positioned on the flat roof of Building 22 shall be replaced in kind. This shall include the installation of occupancy sensors within the corridors at all three floors in Building 22, which allow energy-conservation control sequences to be implemented within the Building. The entire ventilation system within Building 22 shall be balanced upon the completion of a separate renovation project at the Second Floor of the Building. The existing toilet vent pipe shall be re-routed above roof level.

Division 03 -	Concrete, Concrete Forming and Accessories, Cast-in-Place Concrete.
Division 04 -	Masonry, Unit Masonry.
Division 06 -	Wood, Plastics, and Composites, Rough Carpentry, Finish Carpentry, Millwork.
Division 07 -	Thermal and Moisture Protection, Dampproofing and Waterproofing, Thermal Protection, Weather Barriers.
Division 08 -	Openings, Doors and Frames, Entrances, Windows.
Division 09 -	Finishes, Plaster and Gypsum Board, Acoustical Ceilings, Flooring, Carpeting, Acoustic Treatment, Painting.
Division 12 -	Furnishings.
Division 21 -	Fire Suppression, Water-Based Fire-Suppression Systems, Fire-Extinguishing Systems.
Division 22 -	Plumbing, Instrumentation and Control for Plumbing, Plumbing Piping, Plumbing Equipment, Plumbing Fixtures, Drinking Fountains and Water Coolers.
Division 23 -	Heating, Ventilating, and Air Conditioning (HVAC), Instrumentation and Control for HVAC, HVAC Air Distribution, Central HVAC Equipment.
Division 26 -	Electrical, Power Distribution Units, Lighting, Interior Lighting, Emergency Lighting, Exit Signs, Exterior Lighting.
Division 27 -	Communications, Structured Cabling, Data Communications, Voice Communications.
Division 28 -	Electronic Safety and Security.
Division 31 -	Earthwork, Clearing and Grubbing, Grading, Soil Treatment.
Division 32 -	Exterior Improvements, Flexible Paving, Asphalt Paving, Rigid Paving, Concrete Paving, Curbs, Gutters, Sidewalks, and Driveways, Paving Specialties, Parking Bumpers, Pavement Markings, Fences and Gates, Irrigation, Planting.
Division 33 -	Utilities.