Amendment0002.pdf

PDF 175 KB Posted Jun 29, 2023

Attached to: ASB HVAC Replacement Project at the Jacksonville ARTCC, Hilliard, Florida
Solicitation number: 697DCK-23-R-00479
Issued by: Department of Transportation Federal Aviation Administration New England Region

About this file

Written by GovTribe AI · Dec 27, 2023

This document provides details for a federal solicitation seeking HVAC replacement services at a Florida air traffic control facility. The Federal Aviation Administration Boston Enroute Construction Office is soliciting proposals for labor, equipment, and materials to replace the HVAC system at the Jacksonville Air Route Traffic Control Center in Hilliard, Florida. The NAICS code is 238220 for specialty trade contractors and the size standard is $19 million. This opportunity is set aside exclusively for small businesses. A mandatory site visit will take place on July 12, 2023 and all attendees must provide photo identification and RSVP in advance. The estimated price range for this project is $200,000 to $500,000 and payment and performance bonds are required. The solicitation number is 697DCK-23-R-00479. Offerors must register in the System for Award Management and faxed submissions will not be accepted. Proposals are due in accordance with the dates specified in Sections L and M of the request for proposals.

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Other files

File	Type	Posted
amendment 0003697DCK-23-R-00479.pdf	PDF	Jul 24, 2023
697DCK-23-R-00479 amendment0002.pdf	PDF	Jul 17, 2023
zme-d-artcc-d104.pdf	PDF	Jun 29, 2023
030130 - Maintenance of Cast-In-Place Concrete.pdf	PDF	Jun 29, 2023
amendment0001.pdf	PDF	Jun 26, 2023
RFO697DCK23R00479.pdf	PDF	Jun 21, 2023
FAA-STD-019f Chg. 1.pdf	PDF	Jun 21, 2023
FAA-C-1217H.pdf	PDF	Jun 21, 2023
ZJX ASB HVAC Replacement Project Drawing.pdf	PDF	Jun 21, 2023
wageratemay.pdf	PDF	Jun 21, 2023
ZJX ASB HVAC Replacement Project Specs.pdf	PDF	Jun 21, 2023

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RF0 697DCK-23-R-00484

Amendment 0002

Questions and Answers:

1. Sheet M501, detail 2, depicts domestic cold water going to the humidifier. Is the domestic cold water system to be replaced in its entirety or just a disconnect & reconnect?

Answer: Disconnect and reconnect. Install new ball valve for each unit.

2. Sheet M501, detail 2, depicts condensate drain for the humidifier. Is the condensate system for the humidifier to be replaced in its entirety or just a disconnect & reconnect?

Answer: All condensate/ drain piping in the trench will be replaced in its entirety. Drawing will be provided to show extent. Humidifier and AHU have common drain.

3. Is the condensate drain system for the AHUs to be replaced in its entirety or just a disconnect & reconnect?

Note: If these systems are to be totally replaced please provide a drawing that shows routing & sizes

Answer: All condensate/ drain piping in the trench will be replaced in its entirety. Drawing will be provided to show extent. Humidifier and AHU have common drain.

4. What product are we to use to seal the concrete trench? Please clarify Answer: See attached spec for concrete sealer.

5. Will the 2” chilled water back feed be sufficient in size to supply AHUs 9, 8, 7, & 6 once we are at that stage in the project, while the piping is being replaced? Or can the facility operate on less that four AHUs?

Answer: The secondary piping will be connected to AHU’s 7, 8, and 9. Those three AHU’s provide cooling while the piping to the main connection is replaced.

6. Sheet M501, detail 1, references EF-205 & plan sheet M401. But I do not see this information in the bid packet. Please clarify Answer: Disregard the reference to EF 205. Exhaust should be routed to exterior wall in Rm 12A.

7. Per the local Liebert rep, the Liebert AHUs have EC fans included and would not require a supply air scoop in this situation. Can the supply air scoop be removed from the project scope of work, if Liebert is used?

Answer: Provide scoop and damper

8. The Liebert rep also stated that the 12x4x48 damper would not be required, because the Liebert AHU controller has a back draft damper feature already. Can the 12x4x48 damper be removed from the project scope of work, if Liebert is used?

Answer: Provide scoop and damper

697DCK-23-R-00484amendment2

Amendment0002.doc

File details come from the government source that posted it. Updated Jun 29, 2023.