RFI_Responses_W91151-19-B-0018.docx

Solicitation 19-B-0018 Replace HVAC Systems in Building 1001 RFIs Contractor submitted after Site Visit on 3 July 2019

1. Will the bond for this project be claimable after contract award? Or will the bond have to be dispersed throughout the contract’s project schedule and claimed in increments?

Per 52.232-5 (g); The Government shall, upon request, reimburse the Contractor for the amount of premiums paid for performance and payment bonds (including coinsurance and reinsurance agreements, when applicable) after the Contractor has furnished evidence of full payment to the surety.

2. Are there latrines available for use on this project? Or will the contractor be responsible for supplying portable latrines to the on-site workers?

Contractor shall provide a portable restroom and place in a pre-selected location approved by the COR.

3. Will the government confirm that two(2) layers of 3/4" plywood will be needed to overlay the existing grass at the building, in order to operate equipment on the grass?

Yes. The government confirms that the two layers of ¾’’ plywood needed to overlay the grass at the building in order to protect the grass.

4. Will the government confirm that TAB will be require for this project? Will grill to grill TAB be required for the new AHUs, or RFs?

Yes, TAB is required for this project per project’s scope of work and Specs. (From AHU’s and RFs up to VAV boxes)

5. Will commissioning be required for this project?

Yes, commission is required as per DPW specs.

6. Will any duct or grille cleaning be required as part of this project?

No.

7. At the site-visit it was observed that some of the mech rooms had the lighting control panels mounted next to equipment that is to be removed. In removing the equipment, it is possible that a lighting outage may be required at some of the equipment locations. Will this be acceptable?

It is acceptable only if it was coordinated in advance and completed during the weekends or after hours. Weekend and after hours work will need the prior approval of the COR.

8. Sheets M-401 thru M-404 Sheet note #2 "Wall section with insulation" Is this existing to remain, or new? At the site-visit, it was observed that some mech rooms had insulation either coming loose or missing entirely, will this be required to be replaced?

Wall section with insulation to be replaced with new as shown on drawings. The contractor is not responsible for any other work that is not related to this project or not part of the scope of the work.

9. Will painting of new duct, equipment be required for this project?

The contractor shall provide and install new duct and equipment as per DPW Specifications.

10. Sheets MD-401 thru MD-404, Sheet Note #5 requires that shut-off valves be removed and replaced. This will require freezing of the lines to replace the shut-offs. Will the government confirm replacing the shut-off valves as part of this project? Will the freezing method be acceptable to do so?

Yes, the government confirms replacing the shut-off valves and as shown on the drawings. (The freezing method is acceptable.)

11. Will the government confirm that the existing VAVs are operable and in good working condition? Are there any expected delays for repair of the VAVs?

The VAV boxes are not part of the scope of work and will not delay this project.

12. If the existing duct detectors have to be removed for replacement of equipment, will the existing duct detectors be reused? Or will new duct detectors be required?

The contractor shall provide and install new duct detectors on the return air ducts as shown on the drawings, sheet M-702. The existing duct detectors on the supply air ducts are to remain and re-used after replacement of equipment.

13. Can the government confirm if the existing insect screen at the existing louvers to be removed are in good condition? Will insect screen be required to be replaced as part of this project?

The contractor shall provide and install new insect screen and OA louvers as shown on the drawings.

14. Will the government confirm that the contractor IS NOT required to provide temporary heating/cooling?

The contractor is not required to provide temporary heating/cooling, HVAC outage will be done during weekends and after hours.

15. Is the government aware that upon installing and performing start-up of each individual piece of equipment that the manufacturer's warranty will begin once operable? Will extended warranties be required as part of this project?

Extended warranty is not required as part of this project.

16. What type of clearance/access is to be expected in order to locate equipment/material on to the 2nd and 3rd floors?

Contractor shall maintain manufacturer’s recommended clearances for all equipment.