Amendment 0001 - W50S9C-22-B-0004 Replace B-120 Chiller.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

Formally incorporate Question & Answ ers into the solicitation. Lastest Version dated 3 Aug 22.

All other items remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 3

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

16C. DATE SIGNED

BY 09-Aug-2022

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

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

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W50S9C22B0004

X 9B. DATED (SEE ITEM 11)

06-Jul-2022

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. 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 Offer is extended, X is not extended.

Offer 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 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

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 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.

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.

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)

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

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

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

09-Aug-2022

CODE

USPFO VT 158 MISSION SUPPORT CONTRACTING

45 NCO DR SUITE A

SOUTH BURLINGTON VT 05403-5867

W50S9C 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W50S9C22B0004

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00800 - SPECIAL CONTRACT REQUIREMENTS

The following have been added by full text:

QUESTIONS & ANSWERS

W50S9C-22-B-0004

REPLACE B-120 CHILLER

QUESTIONS and ANSWERS

As of 8/3/22

1. Question: In lieu of using the ASTM C547 and ASTM C795 rigid molded noncombustible, with wicking materiel as specified in the HVAC PIPING INSULATION SPEC NUMBER 23 07 19, page 2, paragraph 2.2 Note A. and Weatherproofed with smooth Aluminum and aluminum fitting covers. Can we use 2" thick polyunsaturate (urethane) pipe insulation with a ASJ jacket vapor barrier, weather proofed with a PVC jacket and use PVC fitting covers?

Answer: The exterior above grade piping is called out in specification 23 21 13 – Hydronic Piping section 2.3.A as factory insulated HDPE pipe and does not require additional insulation. The proposed insulation is allowable with 2.3.B PP-RCT piping. The scheduled insulation in 23 07 19 – Piping Insulation section 2.2.A is for the interior chilled water piping required for the piping for the bypass valve.

2. Question: What is the weight of the existing chiller to be removed?

Answer: The existing chiller weighs approximately 12,000 lbs.

3. Question: Please confirm the location of the existing 2-way valve within the Special Access Program Facility (SAPF) that requires replacement with a 3-way valve and describe access situation in the area of the valve?

Answer: The note pertaining to replacing the 2-way valve on HVAC-1 is to be removed as the existing 2-way valve shall remain as is. Install the bypass as indicated on the first floor partial piping plan with a 2- 1/2” bypass line, 2-way valve and a circuit setter set for 105 GPM. (Wording revised 3 Aug 22)

4. Question: Please confirm the intent is to remove the section of existing fence on C-1 where the new bump out around the Chiller is indicated?

Answer: Confirmed.

5. Question: What is the existing glycol %?

Answer: 30% Propylene Glycol/70% Water

6. Question: Is lightning protection required on the Chiller?

Answer: No.

7. Question: Where the new pipes run vertically down the SAPF simulator wall on the East side just North of the ladder near the corner, can we attach brackets to the wall?

Answer: Yes if the attachment does not penetrate the wall. Refer to - WALL TYPES-BI ADD_072922.pdf. (Wording revised 3 Aug 22)

8. Question: Are there any special requirements when we cap the pipes and conduit that penetrate the roof of the

SAPF?

Answer: Yes. The contactor shall treat existing abandoned penetrations as spare conduits per IC Tech Spec for ICD/ICS705 Section G. SCIF Perimeter Penetrations Criteria. “Installation of additional conduit penetration for future utility expansion is permissible provided the expansion conduit is filled with acoustic fill and capped (end of pipe cover).”

W50S9C22B0004

Additionally, the government will perform a sound test on capped conduits to verify that the contactors workmanship meets (Sound Transmission Class) STC-50 criteria. (Wording revised 3 Aug 22)

REMINDER – ALL QUESTIONS MUST BE SUBMITTED FIVE WORKING DAYS PRIOR TO BID OPENING

DATE (FRIDAY 5 AUG 22).

(End of Summary of Changes)