198 Renovations_Amendment 0007.doc

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT CODE

N4008020R0305

PAGE OF PAGE

1 OF

2. AMENDMENT/MODIFICATION

3. EFFECTIVE DATE

28 April 2020

4. REQUISITION/PURCHASE REG NO.

PROJECT NO.

6. ISSUED BY CODE

PUBLIC WORKS DEPARTMENT

SOUTH POTOMAC/FEAD

NSA, BUILDING 182

DAHLGREN VIRGINIA 22448-5000

7. ADMINISTERED BY (If other than Item 6) Code

Address in Block 6

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

X 9A. AMENDMENT OF SOLICITATION NO.

N4008020R0305

X 9B. DATED (SEE ITEM 11)

26-MAR-2020

10A. MODIFICATION OF CONTRACT/ORDER

10B. DATED (SEE ITEM 13) |

THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

[X] The above numbered solicitation is amended as set forth in item 14. The hour and date specified for receipt of Offers [ ]is extended [X] is not extended.

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 _1__ copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; (c) By separate letter or telegram 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 telegram or letter, provided each telegram or letter makes reference to the solicitation and the amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATIONS DATA (if required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS,

IT MODIFIES THE CONTRACT/ORDER NO AS DESCRIBED IN ITEM 14.

| A. THIS CHANGE ORDER ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN CONTRACT ORDER NO. | IN ITEM 10a.

| B. THE ABOVE NUMBERED CONTRACT ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office | appropriation date, etc.) SET FORTH IN ITEM 14. PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

| C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF: 52.249-10

|D. OTHER (Specify type of modification and authority):

E. IMPORTANT: Contractor [X] is not, [ ] is required to sign this document and return 1 copies to this office.

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

Answers to remaining RFI’s Except as provided herein, all terms and conditions of the document referenced in item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or Print)

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or Print)

15.B CONTRACTOR/OFFEROR

(Signature of Person Authorized to Sign)

(Signature of Contracting Officer)

16C. DATE

Standard Form 30

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

This amendment provides the answers to remaining pre-award RFI’s received after posting of Amendment 0006.

1.

AHU-1 VAV controllers are fairly new, do you want to reuse them or demo them and replace with new, since we did the original project it would be pretty easy to do, I would also still give you the warranty on the reused ones, as if they were new. It would save some money to reuse what we can.

Government response: Reusing the existing VAV box controllers suggested in this RFI sounds reasonable. They are relatively new and the Government will get the warranty but this is ultimately Government’s call as they are shown as new in our design. The contractor should give credit back to the Government. If the Government decides to replace with new (as shown in our design), the removed controllers can be turned over to the Government for use as spare parts.

2.

I’m assuming that the CRAC unit will come with a BACnet interface?

Government response: The CRAC unit will be provided with self-contained, packaged controls and a BACnet interface as specified in Section 23 81 00. At a minimum, space temperature and humidity sensors shall be directly connected to the BAS for monitoring of space conditions as shown on Detail B1/M-802.

3.

All VFD’s should also have BACnet cards. We can supply Schneider-Electric VFD’s (with startup) if that would be preferred. They worked well in the B1580 project.

Government response: The VFDs are listed under Div. 262923. Schneider Electric VFDs would be acceptable as long as they meet the requirements in the contract documents. Coordinate submittal information and other requirements with other trades as necessary.

(End of Summary of Changes)