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Last Updated 06/21/2023 03:58 PM
Project Title

Fitzsimons Improved Heating Sys, Bldg. 500

Physical Address View project details and contacts
City, State (County) Aurora, CO 80011   (Arapahoe County)
Category(s) Education
Sub-Category(s) College/University
Contracting Method Competitive Bids
Project Status Bidding, Construction start expected July 2023
Bids Due View project details and contacts
Estimated Value $704,000 [brand] Estimate
Plans Available from Agency's Affiliate
Owner View project details and contacts
Architect View project details and contacts

Typical forthis type of older construction, steam convectors are installed below most windows and radiate heat when the steam flow is turned on. Temperature control is poor with a manually adjusted control valve at each unit. Steam service to this system is activated seasonally and is turned off in the summer. Environmental control is poor and occupant complaints are frequent. Additionally, the old steam and condensate piping is very old and with expected corrosion, leaks are many. Water damage is a frequent problem. Steam distribution in this manner is not a current best practice and should be modernized. This project consolidates the (3) Building 500 East Wing heating water systems into one system. This system will be served by the steam-to-hot water heat exchangers in the 3rd Floor East mechanical room. This includes increasing heating water pump and piping capacities, as well as providing new heating water supply and return risers to connect the existing heating water piping on all levels of the East Wing. This project also includes an additive alternate that removes steam convectors in East Wing restrooms and stairwells and replaces them with heating water convectors The project includes removal of steam and hydronic piping, associated insulation, mechanical equipment which includes convectors, steam-to-hot water heat exchangers, pumps, and their controls as shown on the construction drawings. Some piping insulation to be removed could contain asbestos and will be coordinated with the owner. The heating water differential pressure sensor in the 3rd Floor piping controlling heating water pump speed will be disconnected. New work includes replacing the heating water pumps and increase heating water piping sizes to accommodate the combined heating water load of the East Wing. This piping will be extended to the new heating water riser. Additional piping will be enlarged and added as shown on the plans. Sprinkler piping in mechanical rooms and other spaces may need modification to accommodate the new installations. The new equipment such as pumps and convectors will be connected to the building automation system. The aforementioned piping and equipment comments apply to the additive alternate scope of work. An existing differential pressure sensor on another East Wing floor (to be determined) will control pump speed for the new pumps in the Third Floor mechanical room. Date Email Questions Due 03/28/2023, 2:00 PM Date Email Answers Issued 04/04/2023, 2:00 PM Bid Bond and Power of Attorney or Proposal Guaranty is required in an amount not less than 5% of the total Bid ate Email Questions Due 5/9/2023 - 2:00PM .


Division 03 - Concrete, Cast-in-Place Concrete, Concrete Finishing, Precast Concrete.
Division 04 - Masonry, Unit Masonry.
Division 05 - Metals, Structural Metal Framing.
Division 06 - Wood, Plastics, and Composites, Rough Carpentry, Finish Carpentry.
Division 07 - Thermal and Moisture Protection, Dampproofing and Waterproofing, Thermal Insulation, Weather Barriers.
Division 08 - Openings, Specialty Doors and Frames, Entrances, Automatic Entrances, Windows, Hardware.
Division 09 - Finishes, Plaster and Gypsum Board, Tiling, Ceilings, Acoustical Ceilings, Acoustical Ceiling Suspension Assemblies, Flooring, Painting.
Division 10 - Specialties, Visual Display Units, Signage, Compartments and Cubicles, Toilet Compartments, Fire Protection Specialties, Fire Protection Cabinets, Fire Extinguishers, Lockers, Protective Covers, Flagpoles, Flags and Banners.
Division 11 - Equipment, Foodservice Storage Equipment, Food Preparation Equipment, Food Cooking Equipment, Food Dispensing Equipment, Service Line Equipment, Soda Fountain Equipment, Coffee and Espresso Equipment, Ice Machines, Cleaning and Disposal Equipment, Library Equipment, Audio-Visual Equipment, Laboratory Equipment, Broadcast, Theater, and Stage Equipment, Athletic and Recreational Equipment, Athletic Equipment, Play Field Equipment and Structures, Exterior Court Athletic Equipment, Athletic Field Equipment.
Division 12 - Furnishings, Window Treatments, Casework, Countertops, Rugs and Mats, Office Furniture, Seating, Institutional Furniture, Classroom Furniture, Library Furniture, Book Shelves, Multiple Seating.
Division 21 - Fire Suppression.
Division 22 - Plumbing, Plumbing Insulation, Plumbing Piping, Facility Water Distribution, Facility Sanitary Sewerage, Facility Storm Drainage, Plumbing Fixtures, Drinking Fountains and Water Coolers.
Division 23 - Heating, Ventilating, and Air Conditioning (HVAC), Instrumentation and Control for HVAC, HVAC Air Distribution, Ventilation Hoods, Central Heating Equipment, Central Cooling Equipment.
Division 26 - Electrical, Lighting, Interior Lighting, Emergency Lighting, Exit Signs, Exterior Lighting, Lighting Poles and Standards, Parking Lighting, Roadway Lighting, Area Lighting, Flood Lighting, Exterior Athletic Lighting.
Division 27 - Communications, Structured Cabling, Data Communications, Voice Communications, Call Management, Audio-Video Communications, Distributed Audio-Video Communications Systems, Paging Systems, Public Address Systems.
Division 28 - Electronic Safety and Security, Access Control, Electronic Surveillance, Fire Detection and Alarm.
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, Athletic and Recreational Surfacing, Fences and Gates, Planting Irrigation, Planting, Turf and Grasses.
Division 33 - Utilities, Water Utilities, Sanitary Sewerage Utilities, Storm Drainage Utilities, Electrical Utilities.

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Project Documents
 Engineered Spec Sheet
 Architectural Plans
 Other Documents