AMEND 0001 - PPI Spreadsheet.pdf
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- Attached to
- REPLACE FOUR ROOFTOP UNITS, BLDG 310, NAVAL AIR STATION OCEANA, DAM NECK ANNEX, VIRGINIA BEACH, VIRGINIA
- Solicitation number
- N4008524R2767
About this file
This document is an amendment to a solicitation for the replacement of four rooftop HVAC units at Building 310, Naval Air Station Oceana, Dam Neck Annex, in Virginia Beach, Virginia. The amendment provides responses to various questions from potential offerors, including clarification on the project requirements, such as the ability for the site superintendent to also serve as the SSHO, the need to replace roof curbs, and the potential impact on the existing chilled water and heating water systems. The solicitation has a proposal due date of August 7, 2024, and the contract completion date is 365 days from task order award. Temporary climate control will be required during the decommissioning and installation of the new units. Only contractors in MACC Group ID: ML-C00075 are eligible to submit proposals for this project, which is being issued by the Department of the Navy, Naval Facilities Engineering Command.
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Text version
Page Section Para. Dwg #
Will the government consider allowing 1 person to serve as the Site Superintendent, SSHO, and QC Manager?
NO. PART 2 GENERAL REQUIREMENTS,
01 30 00.05 20 1.1 ADMINISTRATIVE
REQUIREMENTS ALLOWS THE
SUPERINTENDENT TO SERVE AS THE
SSHO. 1.2 QUALITY CONTROL
MANAGER QUALIFICATIONS STATES
THE SUPERINTENDENT MAY NOT
SERVE AS THE QC MANAGER.
Could the unit model and serial numbers be provided please?
Unit Model numbers are indicated in PART 6 record Trane outdoor central station air handler unit submittal data. Serial numbers cannot be provided.
Could the government please provide additional photos around the air handling units to show the roof areas and steel support rigs around each please?
Additional photos are included in this amendment.
What is the Delt T to be used for the chilled water and heating water coils?
Refer to the selection data indicated in PART 6 record trane outdoor central station air handler unit submittal data. 0001
Are the RTU roof curbs to be replaced? The existing units do not have any roof curbs. The units are supported by steel frames constructed of beams and support posts. Refer to Part 3 for detailed information.
To cleaning the ductwork should this be done prior to replacing the units?
This is a means and methods question and cannot be responded to. 0001
The outside presumed in the RFP is that in addition to the overall supply air or is it part of the existing total supply air?
Question is unclear. Assume the question is in reference to the outside air values indicated in PART 3, D30 HVAC. The indicated outside air is part of the total supply air for each unit.
Solicitation / RFP#: N4008524R2767 - PPI Cut Off Date: 7 August 2024
Amend No.
GOVERNMENT RESPONSE
PPI No.
REFERENCE QUESTION
Project Title: Replace Four Rooftop Units, B310, Dam Neck Annex, Virginia
Beach, Virginia
If the new air handling units water flows increase on the coils will the chiller and boilers need to be replace along with the pumps?
Refer to PART 3, 3040 Distribution Systems, Rooftop Central Station Air Handling Units "Selection/performance of the new rooftop unit cooling and heating coils shall be made as close as possible based on the record selection data and existing pump performances. The intent is not to replace either of the system pumps, motors or impellers. However, if this intent is not possible due to an increase in the water pressure drop of the new rooftop units, perform new pump head calculations and provide new pump(s) based on the new pump head calculations".
Can additonal pictures of the chiller, boiler and pumps be provided?
Pictures of the chiller, boiler and associated pumps are not available at this time. 0001
Can additional record drawing and schedules be provide that show what is all connected to the chilled water supply and heating water supply?
Additional record drawings do not exist.
Refer to the PART 6 ATTACHMENTS, BLDG 310 AIR OPS AND GYM FIELD
VERIFICATION DRAWINGS.
RTU 5, 6, 7 have pnumatic controls do you want the swiched over to DDC?
Refer to PART 3 D3060 CONTROLS AND INSTRUMENTATION for the control scope of work. 0001
There is only one pump for the chilled water and heating water. Do you want a second pump for both for redundancy?
No. Not part of the SOW.
The diffusers and return grills have mold on them. Do you want the replaced?
No. Refer to PART 3 D3040 DISTRIBUTION SYSTEMS, Air Distribution, Heating & Cooling for SOW.
Could the government provide details on the existing roof materials to be replaced please?
There are no existing Record Drawings of the existing roof system. We will provide selective drawings and specifications of a recent project where a new MAU was installed.
Our initial estimation is that this project will take an additional two months to complete. Would the government allow the contract completion time to be extended by 60 to accomidate on-site coordination, design, and installation.
Units can not be ordered until the design is approved. Lead times can not be accurately quantified until that time.
Contract completion date shall be 365 days from task order award.
Will temporary climate control be required for the decommissioning of each unit? How much area will be affected for each unit that will need to be temporarily controled?
Yes. Refer to PART 3 1.0 PROJECT
DESCRIPTION AND 4.0
BUILDING/GENERAL REQUIREMENTS.
Area effected for each unit based on the area each unit serves. Refer to the PART 6
ATTACHMENTS, BLDG 310 AIR OPS AND
GYM FIELD VERIFICATION DRAWINGS
File details come from the government source that posted it. Updated .