B115 RFI Answers v.2~1.pdf
PDF 113 KB Posted
- Attached to
- B115 HVAC Design Build
- Solicitation number
- S-24800-00017106
- Issued by
- Multnomah County, Oregon
About this file
This document consists of Request for Information (RFI) questions and answers for an Oregon state agency's HVAC design-build project at Building 115, with bids due July 14, 2026. The scope encompasses complete replacement of HVAC systems for an 11,500 square-foot facility, structured as two CLINs: a Design Element (CLIN 0001) with phased submittals at 35%, 65%, and 100% completion stages, and a Construction Element (CLIN 0002) as a not-to-exceed fixed-price contract. The project requires comprehensive system replacement including Air Handling Units, a new boiler, ductwork modifications, upgraded electrical infrastructure, and a new Direct Digital Control (DDC) system integrated with the existing Energy Management Control System. Design must comply with current ASHRAE standards and UFC 3-410-01 criteria. The RFI clarifies that the scope includes cooling addition throughout the entire building (including previously heating-only utility areas), code-required outdoor air ventilation, and does not include the existing compressed air system. A mandatory pre-bid walkthrough is scheduled to allow contractors to review building plans.
The RFI confirms that the Build America, Buy America Act (BABAA) applies to materials and equipment, replacing the previous Buy American Act requirements. The Government will not provide space criteria sheets describing room use, occupancy levels, and equipment heat loads; contractors must develop this information during design. No operating or heating comfort issues are identified in the facility. Construction requirements include full turn-key responsibility for all equipment, labor, materials, ductwork and piping modifications, electrical coordination, architectural and structural repairs, roof penetrations with certified roofer sealing, refrigerant evacuation and EPA-compliant disposal, and system commissioning with Testing, Adjusting, and Balancing. Extensive preconstruction and construction submittals are required, including Quality Control Plans, safety documentation, utility coordination requests, cybersecurity compliance for DDC systems, and daily quality-control reporting. Final acceptance requires a zero-item punch list, completed commissioning tests, as-built drawings, O&M manuals, equipment inventory spreadsheets, warranty documentation, and spare parts. No contract value, budget, term, incumbent, or evaluation weighting is disclosed.
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Text version
RFI QUESTIONS AND ANSWERS
B115 HVAC DESIGN BUILD
7/7/26
1. The Attachment A Statement of Work document calls for Buy American Act (BAA) Certification. Is the BAA still in effect for this project or does the newer law Build America, Buy America Act (BABAA) govern materials and equipment for this project?
BAA
2. Is it OMD’s desire to maintain the use of the hydronic radiation heating system (finned tube radiators) for heating at the perimeter zones of the building? If so, does OMD believe existing piping systems and radiators are of adequate fitness for continued service?
3. Is the intended scope of work the replacement of central HVAC equipment (air handlers, fan/coils, hydronic unit heaters, boiler, pumps, DDC controls, exhaust fans) only? Or does the scope entail replacement of all air distribution systems (ductwork, diffusers, accessories) as well? Per Statement of Work “Ductwork & Piping: The Contractor is responsible for all ductwork modifications required to accommodate the new systems. Any necessary modifications or upgrades to natural gas lines shall be included in the project scope.”
4. Are space criteria sheets describing use of each room in the facility available?
Specifically, HVAC designers will need to know use of room, number of people in each, equipment heat loads, and temperature performance requirements. No, we do not.
5. For the following utility areas that are heating only, is it OMD’s desire to continue with heating only and not provide cooling to these areas including; Wideband maintenance, HF maintenance, TTY/Wire maintenance, mobility storage? The intent is to add cooling throughout whole building including these areas.
6. For the utility areas referenced in question #5, we’ve noted on as-builts that no ventilation currently exists in these areas. Is it OMD’s desire to add code required outdoor air ventilation to these areas? Per ITB Attachment A Statement of Work “The design and construction shall strictly comply with UFC 3-410-01 (Heating, Ventilating, and Air
Conditioning Systems) applicable Unified Facilities Criteria (UFC), and current ASHRAE standards to meet the facility's specific heating, cooling, and ventilation loads. The comprehensive 'repair by replacement' scope includes, but is not limited to: the demolition and disposal of existing legacy equipment;
and the engineering, furnishing, and installation of new Air Handling Units (AHUs), a new boiler, all necessary ductwork modifications, upgraded electrical infrastructure from the equipment to existing breaker panels, and a new Direct Digital Control (DDC) system integrated into the installation's existing
Energy Management Control System (EMCS).”
7. Are there any known operating or heating comfort issues currently in the facility?
8. Is it a safe assumption that there is no scope associated with the existing compressed air system as part of this project?
9. During construction will this facility be unoccupied, requiring freeze protection heating only?
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