W912QR21R0048-0001.pdf

CIVIL/OPS/ENVIRONMENTAL BR

ATTN: RENEE BOOTH

600 DR M L KING JR PL RM 821

LOUISVILLE KY 40202-2236

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

Solicitation W912QR21R0048 to provide and install a chiller to replace the existing Chiller #2 and Chiller #3 in DFAS Building 21 is hereby modified as follows:

a. This modification incorporates the document titled Questions and Answers to address multiple questions that were received after the initial publishing of the solicitation.

b. Due to multiple requests, this amendment adds an on-site meeting for Wednesday, 26 May 2021 at 10:30 am ET, and includes the instructions needed to pre-register to get on base.

c. The submission date is not extended. Acknowledgment of receipt of this amendment and quotes are due by date of 28 May 2021 at 10:00 am ET.

1. CONTRACT ID CODE PAGE OF PAGES

1 4

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

16C. DATE SIGNED

BY

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 W912QR21R0048

X 9B. DATED (SEE ITEM 11)

13-May-2021

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 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 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

24-May-2021

CODE

U. S. ARMY ENGINEER DISTRICT, LOUISVILLE

600 DR. MARTIN LUTHER KING, JR. PLACE

ROOM 821

LOUISVILLE KY 40202-2239

W912QR 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE W912QR

FACILITY CODECODE

EMAIL:TEL:

W912QR21R0048

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

QUESTIONS & ANSWERS

Questions & Answers for Replacement of Chiller #2 & Chiller #3 at DFAS

W912QR21R0048

Questions are in black font & the answers are in red font

1. Is a site visit being planned? If not, can we schedule a visit to review the site.

A site visit has been scheduled for Wednesday, 26 May 2020 at 10:30 am, Eastern Time. Please see the instructions for site visits to be granted access on base.

2. The drawing attachment has several clouded areas but no description if they indicate work in this contract. Please advise if the clouded areas are work included in the project.

The drawing is included to show reference to the space where the chillers are located from old as-builts. The clouded areas do not indicate any additional work.

3. The floor plan drawings do not indicate any opening to remove and install the chillers through? Are the existing chillers to be disassembled and removed and are the new chillers to be installed broken down and assembled on the concrete pad?

There is a large door shown in the top right corner of the drawing that will be used to remove and install the chillers.

The chillers will need to be broken up into condensers and evaporator sections to fit into the space. So yes, disassembled and reassembled on the concrete pad.

4. Can the piping to the chillers be isolated, and the chill and condenser water valves replaced without an outage or is an outage planned for replacement of the valves? If outage is planned, what is the anticipated duration, and does it have to be accomplished after normal hours?

The chillers can be replaced one at a time to keep the system operating. You can cut off the pipe connections to the chiller without having an outage. The plan is to have a chiller operating throughout project (i.e. chiller 1 and 3 going while chiller 2 is replaced). The valves that go to the outdoor cooling tower can be done one chiller at a time, which includes the three-way valve. However, one of the valves that supply chilled water to the building will require an outage. When these valves are being replaced this should be done on weekend and give a 14-day advance notice to

USACE.

5. Can you provide the existing refrigerant and quantity in each chiller to be removed?

1100 pounds R-123

6. The solicitation states that the new chillers will have the same chilled and condenser water flow, however no flows are provided. In addition, there is no specific performance other than 620 tons. Can you provide the following so a match of the existing performance can be made?

a. Flow rates and pressure drops of chill and condenser water.

b. Entering and leaving water temps for chilled and condenser water and OSA temperature?

c. FLA or max capacity of the existing chiller electrical circuits for the 4160-volt equipment.

d. Confirm that water is the cooling medium, and that glycol is not in the system?

The Performance Work Statement contains the specific information regarding the Trane Model Number CVHF077.

Please see Figure 1, Mt4A, which contains much of this requested information. This is the original as-built and contractor should verify the info in the field.

7. Can you provide a photo of the existing chiller model no and serial number? Can you provide a photo of the existing starter model no and serial number?

Chiller 2 and 3 are the same, however the serial # may change. We do not have a photo of the nameplate for the chiller or starter.

8. Can you provide what the efficiency of the chillers are required to meet?

See the answer to Question #6 above. Also, the solicitation states to purchase Trane Model No CVHF770 and there is a list of features in paragraph 10.0 in section 01 20 00.00 06 of the Performance Work Statement.

9. Can you provide electrical drawings showing the location the starter and existing breaker that serves the two chillers? Is the contractor or DFAS responsible for LOTO of equipment?

See the two photos below (Figure 2 & Figure 3). Contractor is responsible for Lock Out Tag Out. DFAS maintenance may add a lock if there is a need to.

10. Please advise if any water treatment is to be provided?

The system has water treatment already (system on the left in the drawing in the Performance Work Statement). This should be fine as is but should be checked.

FIGURE 2: 4160 V Bucket Primary

FIGURE 3: Trane Chiller Motor Starter

HOW TO GET ON BASE

To prepare for the site visit you must pre-register at https://dbids-global-enroll.dmdc.mil/preenrollui/#!/

Once you have pre-registered you will be given a code and you will email that to Charles Campbell at charles.l.campbell@usace.army.mil.

Sponsor information:

Name Charles Campbell Email: charles.l.campbell@usace.army.mil Phone # 6146929319 Site: Select state of Ohio, then select Defense Logistics Agency Columbus

Send the following to Charles (charles.l.campbell@usace.army.mil).

Title:

First Name:

Middle Initial:

Last Name:

Representing:

Arrival Date:

Arrival Time:

Departure Date:

Departure Time:

Destination:

Purpose:

Code from pre-register:

We will reply to you stating the visit is approved or not approved.

On the day of the site visit:

Report to the visitor center located at 401 N Yearling Rd. Enter the gate and move to the right. It is the first building on the right before the security check point with flag poles in front of it. Check in at the visitor center and you will be issued a temp pass good for the day. Once you have the pass you will be directed to the vehicle inspection area. Security will go through the vehicle so please do not bring weapons or any other items that you don’t want police to find. This process can take up to 30 minutes if it is busy. If you miss the turn in to the visitor center tell the police at the security check point and they can show you how to get to the visitor center from the check point.

Parking is available at any open space around south of building 330

To get into BLDG 330 Building 330 is the US Army Corps of Engineers building, it’s the first building on the right as you enter the base. It located near the tennis courts.

(End of Summary of Changes)