SP4702-15-R-0016 _Amendment_3.pdf

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 or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT 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 your 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.

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

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

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

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

STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION

NO.

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

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 is extended, is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS.

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

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

D. OTHER (Specify type of modification and authority)

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.

15C. DATE SIGNED

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

16C. DATE SIGNED

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

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

PAGE OF PAGES

6. ISSUED BY CODE

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

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

NSN 7540-01-152-8070

Previous edition unusable

CSC-15709, Replace Bldg 10 and 11 Chiller Responses to various Request For Information (RFI’s)

1. Who is in charge of shutting down electric and removing the wire over the Bldg 10 chiller?

Answer: The government will supervise and approve (in advance, in accordance with notification timelines listed in specification section 01 50 03) of shutting off electric power services if required. The contractor shall functionally operate the switches.

2. Will the wires over the Bldg 10 chiller be removed?

Answer: The government does not intend to relocate the wires.

3. Will both chillers be removed at the same time?

Answer: The government expects that the chillers will be replaced one at a time, so that only one temporary chiller is required (provided the contractor orders the new chillers within a reasonable timeframe).

4. Will the period of performance be extended to account for the expansion of the project to 2 chillers?

Answer: The period of performance will now be 210 days from the issuance of the Notice to Proceed.

5. Please provide the head necessary for the chilled water pumps.

Answer: Provide pumps large enough to overcome all internal chiller requirements and an external pressure drop (piping to and from cooling coils, coils, and all valves) of 53 feet of head.

6. Will contractors be allowed to provide all chiller items as “weather rated” in lieu of providing a boxed enclosure?

Answer: Yes, so long as all components that will be exposed to outside conditions are truly weather resistant.

7. Please verify chiller system minimum circuit ampacity.

Answer: Minimum circuit ampacity for the entire chiller (Chiller Selection Schedule on Sheet 2 of 6) should read 485 amps.

8. Is commissioning required for the new chillers?

Answer: Commissioning of the new chillers is still required, see section 23 08 00.00 10.

9. Please verify “free cooling” parameters:

Answer: Chiller Selection Chart on Sheet 2 of 6 needs to be adjusted: The required elements are:

“Free” Cooling capacity should state 960,000 BTU/hr at 46.7 degrees F ambient and 0% load tolerance.

Free Cooling glycol temp in to free cooling system should state 54.9 degrees F Free Cooling glycol temp out of free cooling system should state 50.0 degrees F

10. Clarify the whether factory mounted electrical disconnect switches are required for the chillers:

Answer: Factory mounted disconnect switches are required for both chillers. In addition, the contractor shall provide and install a disconnect switch for the power service to the “temporary” chiller that serves Building 11 (see note #5 and other information on Sheet 6 of 6).

SP4702-15-R-0016, Amendment 3

11. Clarify the requirements for the communication between the chillers and the existing base energy management & control system (EMCS).

Answer: The new chillers shall provide native BACnet data for all of its components, including the chiller, pumps, and free cooling devices. Communication between the chillers and the EMCS shall be via BACnet/IP.

SP4702-15-R-0016, Amendment 3

RFI responses 31July15

P.O Box 3990 Columbus, OH 43218-3990