RFIs Project 671-25-006 Replace HVAC in Hemodialysis.pdf

Site Visit RFI’s for

Solicitation 36C25725B0013 Project 671-25-006 Replace HVAC in Hemodialysis

1. The drawings posted to Sam have no electrical included. It's not clear exactly which unit is being replaced when looking at the provided Mechanical drawings and the SOW.

There should be some Electrical drawings as well, but none are attached with the Solicitation. Please clarify.

ANSWER: The unit being replace is AC-4-2B. Electrical drawings are provided to this

RFI.

2. As I was going through the drawings for Project 671-25-006 it calls out electrical and plumbing but those drawings are not included. Was that by mistake or are they not available.

ANSWER: Please review Division 22 Specification for plumbing and Division 23 Specifications for hydronic piping. See also General and Special Notes on provided mechanical drawings.

3. Is the HVAC system on site viable?

ANSWER: General Contractor is to utilize a Certified OEM Technician to verify condition of the HVAC Unit replacing AC-4-2B.

4. Is the warranty for the existing HVAC system valid?

ANSWER: The warranty for the replacement HVAC system is not valid. General Contractor is to warranty any new components provided.

5. Does the VA anticipate that the scope of work will require any abatement, thus requiring an Abatement Team?

ANSWER: Yes, Abatement will be required in the demolition of the Mechanical Room wall, ceiling, and flooring, and the HVAC unit being replaced.

6. Please confirm that the VA is removing the Temporary Unit requirement from the scope of work.

ANSWER: There is no requirement for a temporary HVAC unit as part of this project.

7. Will overtime or holiday work be required during the duration of this project?

ANSWER: No overtime or holiday work is anticipated in respect to current conditions.

8. Can we assume we will be reusing the existing refrigerant lineset?

ANSWER: See General Notes on page MD 121 of the drawings.

9. Please advise who is installing the ceiling portion of the work?

ANSWER: Contractor is not responsible for the demolition or installation of the suspended ceiling in the Hemodialysis Unit.

10. Please clarify if the thermostat is a standalone unit?

ANSWER: Yes.

11. The current customer supplied HVAC unit has an expired warranty. How will warranty issues be addressed?

ANSWER: See response to RFI no. 4

12. Please confirm the specific flooring requirements.

ANSWER: The flooring requirements are in the General and Special Notes of the drawings. The flooring is to be epoxy as per the specifications.

13. Will any infection control measures need to be taken during performance?

ANSWER: Yes. As there will be abatement as part of this project, the level for Infection Control Risk Assessment is 4.

14. Page M-003 references 10 AHU replacements are included in the base bid, however, the SOW only refers to one. How many units are being replaced as part of this opportunity?

If only one is being replaced, please update the drawings to indicate the unit being replaced and the associated duct, mechanical and electrical components to be included in this opportunity.

ANSWER: There is one unit being replaced as part of this project: AC-4-2B

15. The unit scheduled for installation has been onsite at the VA for over a year. Is the VA or the contractor responsible to have Daikin inspect the unit to verify there is no physical or environmental damage that could impact unit performance and warranty?

ANSWER: See response to RFI no. 3.

16. Keynote 2 on the demolition drawings refer to asbestos abatement. Is asbestos abatement required for this project? If asbestos abatement is required, please provide the asbestos assessment reports, type of asbestos containing materials, approximant amount, and approximate locations.

ANSWER: See response to RFI no. 5.

17. The documents provide indicate temporary cooling units are required, however, at the site visit a statement was made by VA staff that temporary cooling is not required. Please clarify if temporary cooling is required. If required, please provide updated drawings indicating temporary cooling requirements and connection locations to the existing facility.

ANSWER: See response to RFI no. 6. Drawings will not be corrected at this time.

18. During the site visit the VA staff indicated they will complete demolition and temporary construction for access to the interstitial space large enough for new AHU components.

Please provide confirmation the VA is providing this service and detail the extent the service the VA is providing (Removal and reinstallation of all structural and non-structural components including steel, concrete, catwalks, finishes, etc...)

ANSWER: The extent of VA demolition for the space is removal of the suspended ceiling.

19. Several drawings note to provide chemical washdown of coils (i.e. keynote 7 drawing MH101). Please confirm if chemical washdown is required, if so indicate which units we are to include.

ANSWER: The scope of this project is to replace the reheat coil and not to reuse the reheat coil. No chemical wash is necessary for this project.

20. Will a second site be scheduled following the response to questions and clarification of the drawings?

ANSWER: No.

21. What is the expected start date and completion time frame?

ANSWER: The length of the project is 180 days from issuance of notice to proceed (NTP). NTP shall be provided after receipt of submittals and completion of badging process. Submittal and badging process should take and estimated 45 days after award.

22. What is the weight rating of the service elevators? Will they support equipment weights?

ANSWER: The weight limit of the service elevator is 5,000 pounds and will support the weight of the separate unit components. The equipment shall be left in components when moving on the elevators and centered as to evenly distribute weight.

23. Plans reference electrical drawings several times. There were no electrical drawings included. Can they be provided?

ANSWER: See response to RFI no. 1.

24. Could the Superintendent perform dual hat roles as a SSHO and Superintendent?

ANSWER: No

25. Is the staging area to be allowed within the V.A premises?

ANSWER: Yes

26. Are new walls and suspended ceiling to be removed by the hemodialysis project contractor or by the current working contractor within this area?

ANSWER: See response to RFI no. 18.