B116 QA_Responses 20200524.pdf
PDF 128 KB Posted
- Attached to
- Replace Automated Temperature Controls B116 Federal contract opportunity
- Solicitation number
- FA449720R0017
About this file
This document contains questions and answers regarding a solicitation to replace automated temperature controls at Building B116. The contractor will be required to upgrade facility HVAC control system panels and components supporting air handling units, duct heaters, heating and chilled water systems, power monitoring systems, unit heaters, and cabinet unit heaters. Improvements aim to increase remote functionality, reliability, and serviceability of the critical facility.
The contractor must provide all labor, materials, tools, and equipment for the project. A full-time superintendent and dedicated quality control manager are required on-site whenever work is ongoing. An SSHO is also required. Commissioning can be performed by the designer. Escorts will be necessary for work in secure areas. The maximum acceptable shutdown time for air handlers is two hours, and cut-over work should be scheduled during normal business hours and coordinated in advance. Shop drawings from the controls contractor will suffice in place of engineered plans.
View the file
Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| B116 QA_Responses Part 2 20200611.pdf | ||
| Solicitation Amendment FA449720R00170001 SF 30.pdf | ||
| Atch 1 - SOW - Repair B116 Replace HVAC Controls.pdf | ||
| Atch 5 - DAFB Standard Specifications.pdf | ||
| Solicitation - FA449720R0017.pdf | ||
| Atch 4 - DAFB Local Design Guide (9 Apr 18).pdf | ||
| Atch 3 - Wage Determination Building 20200103.pdf | ||
| Atch 7 - Brand Name Trane SC JA 20200512.pdf | ||
| Atch 2 - Bid Schedule - B116 Rpl Auto Temp Ctrls.xls | XLS spreadsheet | |
| Atch 6 - Operational Climatic Data.pdf |
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Text version
DEPARTMENT OF THE AIR FORCE
436th Contracting
Squadron (AMC) 639 Atlantic Street
Dover AFB, Delaware 19902-5639
24 May 2020
MEMORANDUM FOR ALL OFFERORS
FROM: 436 CONS/PKA
639 Atlantic St Dover AFB, DE 19902
SUBJECT: FA449720R0017, Project No. 1076655, Replace Automated Temperature Controls B116, Questions and Answers
The following is a list of questions posed by prospective contractors and the corresponding answers.
1. Please provide complete building as-built drawings to include any and all renovation projects that have impacted our scope.
A1. A full set of As-builts will be provided upon project award.
2. Can existing electrical conduit be reused if it is in good condition?
A2. Conduit can only be reused in exposed areas if in good condition and it would cause damage to the building to remove and replace.
3. Is an on Base office required for this contract?
A3. No
4. Is a full-time superintendent required for this contract that has to be on site whenever work is ongoing?
A4. Yes
5. Is a full-time dedicated quality control manager required for this contract?
A5. Yes
6. Is a SSHO required for this contract?
A6. Yes
7. Can the QC be dual-hatted or part time to this effort?
A7. QC can be Dual-hatted
8. Can the Super also serve as the SSHO for this project?
A8. Yes
9. Please advise on how differing site conditions will be handled contractually.
A9. Contractor is to notify Contracting office of any differing site conditions.
10. Can you please provide the as-built shop drawings for the current controls system?
A10. As-builts can be provided upon contract award
11. Is HVAC commissioning required for this contract? If so, what systems are being commissioned?
A11. Contractor shall provide retro-commissioning to ensure systems are working properly.
12. Is a 3rd party commissioning agent required for this contract? Can this be performed by the designer?
A12. Commissioning can be performed by designer.
13. Some of this project is considered a secure area that would require special badging and/or escorts. Will escorts be readily available for our work?
A13. Escorts will be required for work.
14. Are any of the valves/gauges currently servicing the existing system required to be replaced along with controls?
A14. No, valves or gauges are required to be replaced.
15. Will we be responsible to replace ceiling tiles that are damaged prior to construction starting?
A15. No, Contractor is only responsible for replacing tiles that are damaged during construction.
16. Please provide information on the ceiling tile. Some may get damaged during construction and it would be good to have some on hand.
A16. Information can be provided upon contract award.
17. Will we be required to replace any insulation outside of what is impacted by our work?
A17. No.
18. Other than the VAVs, is any other work required to be performed after hours?
a. For example; in section 1.5.1 Building Control Panel, bullet C: Provide and install a new communication bus for the new BACNET devices to be installed. This will replace the existing Lon communication bus. This link will be run throughout the entire building.
A18. No, additional after-hour work is required unless “cut-over” time exceeds a reasonable timeframe or impacts the buildings mission.
19. All efforts will be made to keep the air-moving equipment maintaining design building conditions at all times, however due to the nature of this project there will inevitably be a minimum “cut-over” period to safely terminate wiring and test end devices. Does the government have any specific guidelines on :
a. Advance notice when planning to shut an air handler down?
b. The maximum acceptable length of time an air-handler can be down?
c. Should the cut-over be scheduled after normal business hours?
A19. The contractor shall provide a schedule as well as advanced notice for AHU shut-downs to be coordinated with the user. AHUs should not be shut down for more than 2 hours. Cut-over should be scheduled for normal business hours and coordinated with BCE and User.
20. As it pertains to the Schedule of Values, are we permitted to invoice for materials stored on site?
A20. The Government may consider in accordance with FAR 52.232-5(b)(2); however, just-in-time material/equipment delivery and installation per approved scheduled is the standard.
21. Are the contractors permitted to charge costs for delay due to a mass casualty event or other unforeseen circumstance?
A21. Reference SOW, para 1.3 Limitations.
22. Given that the control system replacement / upgrade is a direct 1-for-1 with no required engineered changes to the existing sequence of operation, are stamped-and-sealed engineered plans required for the control system portion of the scope of work? Suggest that control system replacement / upgrade is handled via shop drawings by the controls contractor, reviewed by the engineer, are required rather than requiring redundant engineered plans.
A22. A set of shop drawings from the controls contractor will be sufficient, a full set of plans will not be required.
BRITTNEY L. SANTIAGO, CIV, USAF
Contract Specialist
DEPARTMENT OF THE AIR FORCE
| 2020-05-24T10:57:34-0400 | |
| SANTIAGO.BRITTNEY.L.1059038210 |
File details come from the government source that posted it. Updated .