6913G625Q300011 0001.pdf

(x)

6913G625Q300011 x x

1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR

OFFER. If by virtue of this amendment you desire to change an offer already submitted , such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

x

6913G6

Cambridge MA 02142-1001 55 Broadway

VOLPE NAT'L TRANSPORTATION SYS CNTR

01/28/20250001

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended , by one of the following methods: (a) By completing

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

01/08/2025

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

The purpose of this amendment is to provide answers and applicable attachments to vendor questions. Please see continuation sheet.

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

Patricia Barnett

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

Continuation Sheet Notice ID 6913G625Q300011

Question #1: Is a SAM registration required for this project?

Answer: The specific language in the solicitation is, “All Contractors must be registered in SAM in order to receive an award from a DOT Agency”.

Question #2: Can you tell me which VAV Controls company you use? I need this information for the TABs aspect of the project.

Answer: Bldg #2410 has no building automation controls. Only 1 thermostat is shown on the drawing M101 which controls the existing RTU-1.

Question #3: Regarding the SOW under “scope” it mentions only balancing and no replacement of duct work, however under the area “replacement specifications” section 23 they discuss duck work and piping in great detail. I am just writing to confirm that we are to in fact bid only the equipment and not duct work?

Answer: There is no ductwork scope of work. The existing ductwork shall remain as is.

Question #4: Also the work books/binders mentioned. Do you have details by example to show what you're asking for ?

Answer: The references to binders in Spec 23-05-00 Para 1.9.A.2 is for submitting the manufacturer’s maintenance manual. This requirement to submit a hardcopy binder is deleted from the scope of work.

Submittal of PDF formatted maintenance manuals through email is acceptable.

Question #5: Does this project require Test and Balance of the system and adjustments to the VAV Boxes?

Balancing an HVAC system means- adjusting the system's components to ensure that air is distributed evenly throughout a building This process involves measuring air flow and adjusting dampers to ensure that each room receives the right amount of air. Testing, adjusting and balancing is the process of evaluating temperature and environmental control systems to ensure they're heating or cooling. And if so which company maintains your VAV Boxes? Or just checking to make sure the system functions properly after install?

Answer: There are no VAVs in Bldg #2410. The existing ductwork is shown on dwg M101 with only adjustable volume control dampers at the air discharge points. The desired cfm is labeled at each damper for the Balancing scope of this project. Please measure the cfm at each damper and adjust to the cfm shown.

Question #6: What is the date the current HVAC was installed.

Answer: The local distributor told us the existing RTU was shipped 11/12/2002. The attached file entitled, “existing RTU-1_Bryant 580FPV060115GA_shipped 2002-11-12.pdf” is the cut sheet of that old 2002 model. Also attached is the photo of the nameplate, “existing unit nameplate.pdf”.

The basis of design listed in drawing M101 is the replacement for this model with additional options included as shown in the solicitation attachment “For Reference Only_DOT Boston_revised 2024-08- 20.pdf”.