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REQUEST FOR INFORMATION

Due: July 31, 2026/Extended: August 7, 2026

697DCK-26-R-00315 - SLC ARSR HVAC Replacement

Pre-Bid Site Visit: July 28, 2025

Bids Due: August 11, 2025/Bid Extension: August 18, 2026

1. What is the Part Number for the Existing Air Conditioning Unit? Will the FAA consider alternative systems?

FAA: The existing unit is now obsolete. Amendment 0001, issued on August 3, 2026 on SAM.gov, specifies new 15 Ton Carrier Omnizone 50 XCR HVAC or approved units. All items/equipment on this project must meet the Buy America Preference (3.6.4-5 FAA BUY AMERICAN PREFERENCE - STEEL AND MANUFACTURED GOODS

(APR 2022).

2. The solicitation indicates completion of project in 30 days. However, the lead time for an identical unit exceeds this timeline. This is not an off-the-shelf item.

FAA: The Period of Performance (30 days) will not start once the contract is awarded – it will start after the submittal process and when all equipment is ready to be installed.

3. Will an Arc Flash Study will be required at the facility?

FAA: Yes.

4. What is the scope of the flash study? Is it an all-encompassing, full site arc flash study or is it only for specific areas? If only specific areas then please provide details if available.

FAA: The purpose of this arc flash study will be to ensure safety for personnel and equipment surrounding any new electrical components associated with this project. This is to include an arc flash study as well as ensuring appropriate arc flash labels are installed/applied at the completion of equipment installation, modification, renovation, or replacement in accordance with JO 3900.64.

5. What are the parameters for the study?

FAA:

a. The Contractor shall perform a complete short-circuit, protective device coordination, and arc flash hazard analysis in accordance with NFPA 70E, NFPA 70 (NEC), IEEE 1584, OSHA requirements, and applicable FAA standards such as JO 3900.64. An arc flash study shall be required for all new electrical equipment including disconnects, modifications to existing electrical distribution systems, changes to protective devices or settings, electrical refurbishments, or where existing arc flash documentation is missing, outdated, or invalid in relation to the scope of this project. Studies shall be based on field-verified data and reflect the final installed condition. Arch flash warning labels shall be provided and installed on all applicable equipment.

b. Determine arc flash boundary distances, incident energy levels and required Personal Protective Equipment (PPE) for each piece of newly installed equipment.

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c. Submit an updated detailed Arc Flash Report to NDP via the COR or PM.

6. What documentation before, during and after would be required to be submitted?

FAA: Documentation after includes an arc flash study report. Other documentation includes providing the appropriate arc flash labels installed/applied at the completion of equipment installation, modification, renovation, or replacement as designated by JO 3900.64.

7. Page 1, fourth paragraph, what drawings you guys mean by this (contractor shall provide drawings).

FAA: If Contractor proposes changes to design project, this should be submitted in the form of a submittal to the COR for approval before installation phase occurs, if at all possible.

8. Page 1, fourth paragraph, Temporary cooling systems shall not be placed into service until FAA acceptance of required submittals and successful completion of the run-in test. How long will this process take, because the unit probably needs to be held (where the contractor has to pay for that time so its not used by other and then needs to be re-tested again).

FAA: Submittals for temporary cooling systems include a temporary cooling plan and also the product data for intended temporary systems. These should be produced during the submittal phase of the project. Once installation begins, it is up to the Contractor where in the demolition cycle they intend to begin removal of units….as long as complete redundancy is maintained per FAA orders. Once the temporary units are hooked up, they must pass a continuous, 24-hour run in test with no issues before the facility can be switched to temporary cooling.

9. Are FAA equipment storage areas on construction site or another location offsite?

FAA: This will be coordinated with the COR and the SSC facility team after award.

10. Temporary cooling should be stand by or operating during construction?

FAA: The FAA mandates full redundancy for HVAC systems at this site. There must always be 2 units wired and fully functional. For example: this means while Unit A is being removed, Unit B must be fully operational, and temporary cooling must be hooked up and have passed the 24-hour continuous run-in test. If Unit B fails, then the system would be able to switch to temporary cooling. In order to comply with FAA orders, the Contractor is responsible for ensuring there is always 2 units hooked up: one operational and one wired, powered, and on stand-by.

11. Existing units aren’t sitting on curbs. Should we match existing or provide new curb/stand for new units?

FAA: New curbs are not necessary for indoor units.

12. Can you please confirm whether the FAA anticipates removing and installing the rooftop units via mobile crane? If so, is there designated crane access or staging identified for the site, and were any restrictions discussed during the site visit that would affect crane operations or rooftop access?

FAA: If necessary, designated crane access/staging shall be discussed with the COR and approved before moving cranes/staging machinery on FAA property. Units are not located on rooftop; rather, inside the facility.

Disassembly may be necessary due to space constraints. The Contractor is responsible for formulating how they intend to remove units from the facility.

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13. Do you have and would share the following?

a. Existing electrical design drawings (as-builts)

FAA: See Attachment 1.

b. Existing equipment submittals.

FAA: Current units are York Johnson Controls 15-ton model DSV180A2E1DAA0A-D.

c. Existing generator capacity, cutsheet and sizing specs.

FAA: N/A

14. Site Visit Attendance FAA: See Attachment 2.

Attachments Attachment 1: RFI slc-d-arsr-e022

Attachment 2: RFI Site Visit Attendance – SLC ARSR HVAC Replacement

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ATTACHMENT #2: RFI Site Visit Attendance

697DCK-26-R-00315 - SLC ARSR HVAC Replacement Site Visit: July 28, 2026

The Following Primary and Sub-Contracting Companies Attended the SLC ARSR HVAC Replacement Site Visit

Delta Consulting Engineers

Kingsboro Airfield Construction A&T Sheet Metal