PN: 636-26-306 Replace HVAC Systems Building 6 & 8

Amendment / Modification

This amendment (0001) to solicitation 36C26326Q0456 provides:

• Responses to vendor questions submitted.

• The Site Visit Sign In Sheet.

• The document references "Questions and Responses - 5 pages" and "Site Visit Sign In Sheet - 2 pages" as attached documents.

• No explicit changes to proposal deadlines or submission requirements are mentioned in this amendment, but bidders should review the attached Q&A for any clarifications that may impact their proposals.

Form / Attachment / Pricing Sheet

This document is a sign-in sheet for a pre-bid site visit related to Solicitation Number 36C26326Q0456, Project Number 636-26-306, for the replacement of the HVAC System in Building 6 & 8 at the VA Nebraska Western Iowa Health Care System in Omaha, NE. The site visit took place on March 23, 2026, at 10:00 AM CT.

The sheet records the following information for each attendee:

• Name
• Company
• Phone Number
• Email Address

It also lists the Contracting Officer and other government representatives present.

This document confirms attendance at the mandatory site visit, which is often a prerequisite for bidding on government contracts. It provides a list of companies and individuals who attended, potentially indicating the level of interest in the opportunity and offering a point of contact for networking or information sharing among potential bidders. The presence of government personnel indicates the official nature of the site visit.

Questions & Answers / Clarifications

This document provides responses to vendor questions regarding the "Replace HVAC System in Building 6 & 8" project (PN: 636-26-306).

• Liquidated Damages: Not included in the General Conditions.
• Plans/Specifications: None provided; bids should be based on the SOW.
• Work Hours: Building 6 work is after hours if inside; Building 8 can be during the day. PCRA and ICRA will be completed before work begins.
• Building 6 Mini-Split: A new 3-ton mini-split is for the mechanical space and does not need to be added to the building automation system.
• AHU Removal/Replacement (Building 8): The existing outdoor air louvre will be used for removal and replacement.
• DX Coil Data (Building 6): Specific data for the DX coil in AHU for Building 6 is provided, referencing drawings dated 02-25-2002.
• Line Set Routing: New line sets should fit existing core holes if they meet manufacturer recommendations. Alternative routes require COR coordination, and unused holes must be filled.
• Crane Use: Crane use is permitted during normal business hours, provided road/ER access is maintained and a lift plan is submitted 14 days prior.
• Submittal Turnaround: Allow 15 business days for VA response.
• Refrigerant Options: Bidders can propose R454B or R410A if compatible and meeting EPA guidelines.

Clarifications address work hours, equipment integration, technical specifications, and logistical requirements, which may influence bidder proposals and planning. No changes to due dates or submission rules were explicitly mentioned in this Q&A document.

Other / Unclassified

This document is a General Decision Number (NE20260057) dated 01/02/2026, which supersedes NE20250057. It outlines prevailing wage rates and fringe benefits for various building construction trades within Douglas County, Nebraska, specifically for projects that do not include single-family homes or apartments up to four stories. The document lists specific trades such as Bricklayer, Carpenter, Electrician, Elevator Mechanic, Ironworker, Laborer, Plumber, Pipefitter, Sprinkler Fitter, Sheet Metal Worker, and various Operator roles (Crane, Forklift, Loader, etc.).

It also includes important notes regarding:

• Executive Order (EO) 13706: Establishing Paid Sick Leave for Federal Contractors, applicable to contracts awarded on or after January 1, 2017. Contractors must provide 1 hour of paid sick leave for every 30 hours worked, up to 56 hours annually.
• Executive Order 13658: Generally applies to contracts awarded between January 1, 2015, and January 29, 2022. It mandates a minimum wage rate of at least $13.30 per hour (or the applicable wage determination rate, if higher) for covered workers in 2025. This rate is adjusted annually.
• Unlisted Classifications: Procedures for adding classifications not covered by the listed scope after award.

This document is crucial for bidders on federal construction projects in the specified area. It establishes the minimum wage rates and fringe benefits that must be paid to laborers and mechanics employed on the contract, ensuring compliance with federal labor standards. Bidders must use this information to accurately estimate labor costs and ensure their proposals meet regulatory requirements.

Form / Attachment / Pricing Sheet

This document, VAAR 852.219-75, is a "VA NOTICE OF LIMITATIONS ON SUBCONTRACTING - CERTIFICATE OF COMPLIANCE FOR SERVICES AND CONSTRUCTION (JAN 2023) (DEVIATION)". It requires offerors to certify their compliance with subcontracting limitations as stipulated in the solicitation and resultant contract.

• Certification Requirement: Offerors must certify that they will comply with subcontracting limitations. The specific limitation percentage depends on the contract type:
  • Services (except construction): Not more than 50% of the amount paid by the government to firms that are not certified SDVOSBs or VOSBs.
  • General construction: Not more than 85% of the amount paid by the government to firms that are not certified SDVOSBs or VOSBs.
  • Special trade construction contractors: Not more than 75% of the amount paid by the government to firms that are not certified SDVOSBs or VOSBs.
• Subcontractor Counting: Work subcontracted by a similarly situated certified SDVOSB/VOSB subcontractor counts towards the limitation.
• Exclusions: Cost of materials are excluded and not considered subcontracted. For services, other direct costs may be excluded if they are not the principal purpose of the acquisition and small businesses do not provide the service.
• Acknowledgement of Jurisdiction: Offerors acknowledge that the certification is subject to Title 18, United States Code, Section 1001, and that false certifications may lead to penalties.
• Consequences of Non-Compliance: Details potential penalties for SDVOSB/VOSB awarded contracts that do not act in good faith, including referral to suspension/debarment, fines, and prosecution.
• Cooperation and Records: Offerors must cooperate and provide documents to VA to determine compliance. Failure to do so may result in remedial action.
• Submission Requirement: The completed certification must be submitted with the offeror's bid, quotation, or proposal. Offers without this certification will be deemed ineligible for award.

This form is mandatory for all offerors. Failure to complete and submit it accurately will result in the offer being considered ineligible for award. Bidders must understand the specific subcontracting limitations applicable to the opportunity and ensure their proposed approach complies with these requirements.

Statement of Work (SOW) / Performance Work Statement (PWS)

This Statement of Work details the requirements for replacing the existing HVAC systems in Building 6 and Building 8 at the Omaha Veterans Affairs Medical Center (VAMC) with new, more efficient systems that meet current A2L refrigerant requirements. Additionally, a new mini-split system will be installed in the basement of Building 6 for mechanical room cooling.

Building 6:

• Demo and remove existing Air-Cooled Condensing Unit (ACCU) and disassemble AHU to remove coil.
• Recover and dispose of refrigerant per EPA regulations.
• Install a new Daikin Applied Dual-Circuit Air-Cooled Condensing Unit (R-410A refrigerant).
• Install a new Daikin Applied Dual Circuit Evaporator Coil compatible with the existing McQuay AHU.
• Reassemble AHU, furnish and install new insulated copper line sets, charge the system with R-410A refrigerant, and perform leak testing.
• Install a 3-ton mini-split wall-mounted unit with inverter-driven technology in the basement mechanical room, ensuring it can turn down to 20% for part load conditions.

Building 8:

• Demo existing AHU and condenser unit, isolate and drain associated fluids.
• Recover and dispose of refrigerant per EPA regulations.
• Install a new Daikin Applied Vision Air Handling Unit (AHU) with R-454B DX Coil, meeting specific efficiency and construction requirements.
• Install a new Lennox 12.5 Ton Dual-Circuit Air-Cooled Condensing Unit (R-454B refrigerant).
• Furnish and install new insulated copper line sets, steam actuator, and zone actuator.
• Modify ducting, steam, and condensate piping to accommodate new equipment.
• Charge the system with R-454B refrigerant, pull vacuum, and perform leak testing.

General:

• Verify building automation system interfaces correctly with new equipment.

• Install proper drain pans and traps for new evaporator coils.

• Inspect mixing dampers and separation between hot and cold decks.

• HVAC systems must achieve minimum efficiency ratings specified by the manufacturer.

• Systems must operate with a minimum uptime of 99%.

• Maintain indoor temperature within the specified range of 68-76°F.

• All work must comply with applicable federal, state, and local laws, ordinances, criteria, rules, and regulations, including USACE EM 385-1-1, 29 CFR 1926, NFPA 70, NFPA 70B, NFPA 70E, and others.

• The contract Period of Performance is 120 calendar days from a formal Notice to Proceed.

• Construction Location: Omaha VA Medical Center, Building 6 and Building 8, Omaha, NE 68105.

• Safety: Comprehensive safety program including Preconstruction Risk Assessment, Infection Control Risk Assessment, compliance with OSHA standards, and a "Competent Person" on-site.

• Personnel: General contractor must provide an OSHA "Competent Person" with 3+ years of experience and OSHA 30 certification. All contractors require OSHA 10 certification. HVAC technicians need EPA 608 certification and/or NATE certification.

• Training: Contractor must provide comprehensive training to VA personnel on the new HVAC systems.

• Documentation: Provide user manuals, warranty information, and maintenance recommendations.

• Warranty: Contractor must provide a warranty as stated in the scope of work and conduct warranty reviews at 6 and 11 months post-completion.

Solicitation / RFP / RFQ

This solicitation is for the replacement of the HVAC system in Building 6 & 8 at the VA Nebraska Western Iowa Health Care System (VANWIHCS) in Omaha, NE. The contractor shall provide all necessary tools, materials, equipment, labor, and supervision.

• Replacement of HVAC systems in Building 6 & 8.

• Adherence to the Statement of Work (SOW).

• Compliance with all applicable Federal, state, and local codes and standards.

• Background investigations for contractor personnel accessing VA sensitive information.

• Compliance with Buy American requirements for construction materials.

• Contract Type: Firm-Fixed Price.

• Estimated Magnitude of Construction Cost: $250,000.00 - $500,000.00.

• Performance Period: 120 calendar days after award/notice to proceed.

• Offers are due by 2:00 PM CDT on March 30, 2026.

• Proposals must be submitted electronically via email to angelique.mabley@va.gov.

• A site visit is scheduled for March 23, 2026, at 10:00 AM (CT).

• Technical questions are due by March 24, 2026, at 2:00 PM (CT) via email to angelique.mabley@va.gov.

• This solicitation is a total set-aside for Service Disabled Veteran Owned Small Business (SDVOSB) concerns.

• Offerors must be certified SDVOSBs listed in the SBA certification database.

• Applicable NAICS Code: 238220 (Plumbing, Heating, and Air-Conditioning Contractors) with a $19 Million small business size standard.

• Offerors must provide a Limitation on Subcontracting formal certification.

• A bid guarantee is required (SF 24).

• Performance and Payment Bonds (SF 25 and SF 25A) are required within ten (10) calendar days after award.

• Offerors must be registered in the System for Award Management (SAM).