Amendment0004.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE

5. PROJECT NO. (If applicable)2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQ.NO.

PAGE OF PAGES

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

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

CODE

9A. AMENDMENT OF SOLICITATION NO.

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

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

Items 8 and 15, and returning is extended, is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required.)

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

(x) 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 THE AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation date, etc.) SET FORTH IN ITEM 14.

E. IMPORTANT: Contractor is not, is required to sign this document and return

ORDER NO. IN ITEM 10A.

1 1

0004 10/06/2021

FEDERAL AVIATION ADMINISTRATION

AAQ-500 - REGIONAL ACQUISITIONS

1200 DISTRICT AVENUE

BURLINGTON MA 01803

AAQ510BOS-AFN

x

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

separate letter or telegram which includes a reference to the solicitation and amendment number. 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 telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By ___________ x x

697DCK-21-R-00464

copies to the issuing office.

09/07/2021

(x)

Amendment 0004 is issued for the following questions and answers:

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

15C. DATE SIGNED 16B. CONTRACT AUTHORITY 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

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

Susan J. Newcomb

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 .

Question 1:

Note 7 on sheet M101 refers to sheet M901. Is there an additional sheet originally intended and/or omitted from the solicitation package regarding DDC/BMS controls?

Answer: This is a typo. M901 should read M601.

Question 2:

Reference is given to DDC/BMS controls, the solicitation shows existing site (DDC/BMS) conditions outside of contract performance on sheet M604. Is the integration, between the systems the responsibility of Government personnel and/or an owners preferred vendor?

Answer: Contractor is responsible for providing new control devices and supporting materials for the AHUs as called for in the design package and integrating those new devices into the existing DDC/BMS.

M604 contains sequences of operation for various equipment. Contractor is responsible for programming Sequences of Operations for AHUs 510, 515, and 520 into the DDC/BMS.

Sequences for CRAC-1, SF-1, SF-2, EF-1, and EF-2 are for reference only while incorporating AHUs 510, 515, and 520 into the DDC/BMS. The sequences for CRAC-1, SF-1, SF-2, EF-1, and EF- 2 are existing, but interdependent on the sequences for AHUs 510, 515, and 520 and must be properly functioning in collaboration with those AHUs for acceptance of the controls to be given.

Question 3:

Is the existing controls on-site open or proprietary?

Answer: Existing controls on site are BACNET Protocol via StruxureWare by Schneider electric.

Controls subcontractor must be certified to work on this system.

Question 4:

Do you have any other contact info we can use given the limited time before the quote submission for Schneider?

Answer: The information provided in the specification (Contact information and name) was provided by Schneider Electric. See question 3 for subcontractor requirements.

Question 5:

Is the Government amenable to a solution which would provide temporary facilities to reduce time for on-site construction activities?

Answer: The Government will consider proposals that may reduce construction time and/or improve Operational Risk Management considerations.

Question 6:

Equipment manufacturer’s require a full flush of the chilled water loop for startup and warranty purposes on new equipment. Such is not provided in the contract drawings. Is a flush of the loop anticipated or required for this project, and if so, what is the volume of the loop for estimation purposes? FYI, without a flush, Trane’s standardized nomenclature would appear to void warranties, especially where water quality/chemical makeup is not part and parcel to the solicitation documents.

Answer: Specification section 23 21 13 Hydronic Piping discusses flushing requirements.