P01-537-26-200 AHU-AC21 ADDENDUM 1.pdf
Posted: June 4, 2026
• Type: .pdf
• Size: 0.15MB
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Summary
This addendum modifies the bidding documents for Project VA 537–26–200, titled "Facility Cooling Improvements at the Jesse Brown VAMC," dated May 15, 2026. It specifically addresses the Replacement of AHU-AC21 serving Nutrition Food and Service.
Key changes include:
- Extension of the Period of Performance from 245 days to 308 days.
- Revision in the VA's review period for submissions to 14 calendar days.
- Change in the propylene glycol concentration in the AC-21 hydronic distribution system from 60% to 30%.
- Addition of components like control valves and thermostatic traps to the Fin Tube Radiation System.
The addendum also includes comprehensive updates to project manuals and drawings. Notable modifications in the drawings involve:
- Inspection and repair requirements for ductwork.
- Detailed specifications for exhaust fan replacements.
- Adjustments in duct sizes.
The document specifies that existing ductwork must be tested before demolition work begins and outlines various changes across multiple sheets (MD-1, MD-2, MD-3, M-1, M-2) related to equipment specifications, airflow measurements, and installation notes.
Attachments include revised schedules and annotated drawings that reflect these changes. This addendum ensures that prospective bidders are informed of all necessary modifications to accurately prepare their bids for this project.
Key changes include:
- Extension of the Period of Performance from 245 days to 308 days.
- Revision in the VA's review period for submissions to 14 calendar days.
- Change in the propylene glycol concentration in the AC-21 hydronic distribution system from 60% to 30%.
- Addition of components like control valves and thermostatic traps to the Fin Tube Radiation System.
The addendum also includes comprehensive updates to project manuals and drawings. Notable modifications in the drawings involve:
- Inspection and repair requirements for ductwork.
- Detailed specifications for exhaust fan replacements.
- Adjustments in duct sizes.
The document specifies that existing ductwork must be tested before demolition work begins and outlines various changes across multiple sheets (MD-1, MD-2, MD-3, M-1, M-2) related to equipment specifications, airflow measurements, and installation notes.
Attachments include revised schedules and annotated drawings that reflect these changes. This addendum ensures that prospective bidders are informed of all necessary modifications to accurately prepare their bids for this project.
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