B500 JWing Heat Repair

Summary (Newest Update)

Background The requirement is issued by the United States Air Force to procure, replace, and repair various equipment to restore heating capability to the JWing HVAC system at Building 500. The project aims to address the broken heating system due to age and previous flooding incidents, ensuring that multiple floors in the JWing have functional heating. Work Details The contractor will perform the following tasks: 1. Visit the site before starting work to verify existing conditions and space requirements. 2. Remove and dispose of the existing 25-gallon condensate return station located on the east side of the JWing first-floor mechanical room. 3. Install a new 25-gallon condensate tank with duplex pumps in the same location, made of stainless steel with industry-standard trim. 4. Remove the existing U-tube steam heat exchanger and associated piping from the JWing first-floor mechanical room, replacing it with a new unit of like configuration and capacity. 5. Replace steam traps on the steam heat exchanger and flash tank (1 each of ¾” F&T trap and 1 each of ¾” inverted bucket trap). 6. Replace associated components including gate valves for isolation (2 each of 1” A105 800THR and 2 each of ¾” A105 8900THR), check valves (1 each NPT 800 A105 piston check & 2 each of ¾” NPT 800 A105 piston check), relief valve (1”x1” at 75 psi), pressure gauges (2 each of 0-100 psi, 4” face), and strainer (1 each of ¾” wye). 7. Provide all necessary electrical connections for new equipment. 8. Supply all required piping and coupling connections for new equipment, including schedule 80 pipe on the condensate side. 9. Provide all required consumables such as o-rings, gaskets, and seals for new equipment installation. 10. Conduct startup testing to ensure satisfactory installation and operational capability of new equipment and piping. The contractor is also responsible for all Lock-Out-Tag-Out (LOTO) requirements during this process. Period of Performance The contract period will be from April 27, 2026, to July 26, 2026. Place of Performance The construction projects will be performed at Offutt Air Force Base, Nebraska.