36C25219B0003-0006000.docx

Jesse Brown VA Medical Center VA Project # 537-18-136A

5. PROJECT NUMBER (if applicable)

CODE

7. ADMINISTERED BY

2. AMENDMENT/MODIFICATION NUMBER

CODE

6. ISSUED BY

8. NAME AND ADDRESS OF CONTRACTOR

4. REQUISITION/PURCHASE REQ. NUMBER

3. EFFECTIVE DATE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED

PAGE OF PAGES

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED

BPA NO.

1. CONTRACT ID CODE

FACILITY CODE

CODE

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:

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

E. IMPORTANT:

is extended,

(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 electronic communication 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 is not extended.

12. ACCOUNTING AND APPROPRIATION DATA

(REV. 11/2016)

is required to sign this document and return ___________ copies to the issuing office.

is not, 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.

15C. DATE SIGNED

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

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 letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER

Contractor

16C. DATE SIGNED

14. DESCRIPTION OF AMENDMENT/MODIFICATION

16B. UNITED STATES OF AMERICA

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

16A. NAME AND TITLE OF CONTRACTING OFFICER

15B. CONTRACTOR/OFFEROR

STANDARD FORM 30

PREVIOUS EDITION NOT USABLE

Prescribed by GSA - FAR (48 CFR) 53.243 (Type or print) (Type or print) (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

(Number, street, county, State and ZIP Code) (If other than Item 6) (Specify type of modification and authority) (such as changes in paying office, appropriation date, etc.)

(If required)

(SEE ITEM 11)

(SEE ITEM 13)

(X)

CHECK

ONE

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

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

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

(Signature of person authorized to sign) (Signature of Contracting Officer) 01-22-2019 537-19-1-6988-0004 537-18-136A 36C252 Department of Veterans Affairs

GLAC-NORTH CHICAGO IL

3001 Green Bay Road Building 1, Room 329 North Chicago

IL

60064-3048 36C252 Department of Veterans Affairs

GLAC-NORTH CHICAGO IL

3001 Green Bay Road Building 1, Room 329 North Chicago

IL

60064-3048 To all Offerors/Bidders

36C25219B0003 01-22-2019

X X X

X

PROJECT 537-18-136A AHU 5 FOLLOW-ON

This amendment is issued to publish the 2nd Site Visit Sign-In Sheet, RFI Questions and Answers, & Specs for HVAC Ducts.

Please see the attached for the sign-in sheet, & the following pages for the RFIs and HVAC Ducts Specs.

The closing date and time has not been extended.

All other terms and conditions remain in full force and effect.

537-18-136A AHU 5 Follow On RFIs and Answers

1. Is there a specification for the new supply and return boxes to be installed? Is the VA looking for standard VAV boxes or faster acting Venturi valve type boxes? No specific box specification was included in specifications. Please provide a specification or list of approved manufacturers for this equipment.

Refer to specification section 23 36 00, Air Terminal Units

2. What is the length of time in which the Operating Rooms will be shut down?

Please refer to Statement of Work (SOW): Part 2: Period of Performance (POP):

Work shall be scheduled for Friday, 03/29/19, after the last surgical procedure. All work shall be completed within 14 calendar days and turn over all spaces to EMS for terminal cleaning on 04/13/2019.

Weekends starting on Friday at 6:00pm. through Sunday for any work in the 3rd. floor mechanical room and in any spaces on the 2nd. floor of OR Suites.

The Contractor can work any day, weekends, including Federal Holidays.

3. Will there be any additional work scheduled within the ORs during the shutdown of the ORs for this project? (medical equipment, doors, etc.)

None.

4. Will the existing sensors (pressure, humidity, temperature) with displays be re-utilized or should they be replaced?

Please refer to the Statement of Work; Part 3: Detailed Project Scope of Work, item 16, on page 7 of 12 of the SOW.

5. Please provide the infection control requirements for work areas under this project.

Please refer to spec. section 01 35 26 Safety Requirement, sub-section 1.12 Infection Control on page 16 of 30 of this spec.

6. Please provide specifications and details for the desired access panels to allow cleaning and maintenance of R-ATU’s.

Please refer to specification section 23 31 00, HVAC ducts and casings.

7. Please provide the locations of access panels to determine the quantity to be installed under this project.

Location of access panels should be such as to facilitate the access to coils, coil valves, and humidifiers.

8. The solicitation states that the VA COR is to conduct TAB with the TAB contractor. During OR shutdowns, it will be necessary to staff additional VA CORs to supplement an expedited TAB schedule. Please advise how many CORs can be mobilized to minimize the duration of TAB activities.

One COR will be available.

9. Will commissioning be part of this project? Is the contractor to carry the commissioning agent and the commissioning representative?

There will be 3rd party commissioning work on this project.

10. Construction progress meetings are calling for twice weekly on-site progress meetings. Will CO and COR be present or call in for all meetings? Please advise if a singular weekly meeting is acceptable.

CO and COR will be present or call in for all meetings.

As is stated in the SOW, construction progress meeting are to be held twice weekly on-site.

11. Drawings appear to contain many items that do not pertain to the focus of the project; heat tracing, pump replacement, etc. Please provide clear direction on what is necessary on the project drawings.

Please refer to SOW; List of Exhibits, on page 7 of 12 of the SOW Exhibit 1a: Drawings dated March 5, 2018, of the previously installed project, 537-18-136, to be used as references only.

Exhibit 1b: Specification dated March 5, 2018 of the previously installed project, 537-18-136, to be used as references only.

Exhibit 2a: The bid drawing set for project # 537-18-136A consists of seven drawings: 40-G1, 4-M1, 40-M2, 40-M3, 40-M4, 40-M5, and 40-M6. All bid drawings for this project dated December 13, 2017.

Exhibit 2b: Bid specifications for this project, # 537-18-136A.

12. Is the JBVAMC maintenance staff responsible for shutting systems down, draining systems, refilling systems, energizing and the responsibility of the contractor to perform functional testing with the COR and maintenance?

Yes

13. Please provide full schedule of equipment to be updated/replaced/removed.

Refer to bid drawings dated December 13, 2018, and the Statement of Work.

14. Please confirm dates/times that work is scheduled to begin and end.

Work shall be scheduled for Friday 03/29/19, after the last surgical procedure. All work shall be completed within 14 calendar days and turn over all spaces to EMS for terminal cleaning at 6:00PM on 04/13/2019.

15. At the walk through we were not able to look in the ceiling to confirm if there is any other equipment or other obstructions to the removal and installation of the SOW tasks/equipment. Are the bidders to assume there are no obstructions in the ceiling in their bid?

Any un-foreseen condition that go beyond reasonable will be addressed during the construction phase.

16. Are there any additional humidifiers being added to the area or is all work to be just remove and replace existing, utilizing the existing wiring? If additional humidifiers are being added, please confirm quantities and locations.

Please refer to Statement of Work (SOW), Part 3, item 8, page 5 of 12 of the SOW.

Existing supply ATUs serving the 8 ORs have humidifiers that must be removed and replaced. Contractor may use existing wiring on ATUs. Supply ATUs serving room 2632 (Anesthesia Work) and 2634 (Satellite Pharmacy) do not have humidifiers and new humidifiers must be installed, including new steam supply piping, traps, and valves as shown on Exhibit 3.

17. Is there a specific manufacturer and model # for the VAV boxes? This is not included on the schedule nor in the specification.

No manufacturer has been specified, contractor shall select the ATUs based on the requirements of the SOW, specifications, and drawings.

18. New RA and EA Mods are called for on Drawing 40-M5. Are these to be replaced as part of this project or are these old note?

The schedule for the new ATUs is found on bid drawing 40-M2, dated December 13, 2018, Exhibit 2a. Please be sure you are reviewing the correct bid drawing and not get confused with the drawings in Exhibit 1a, dated March 5, 2018, to be used as references only.

19. Does JCI need the contractor to install duct mounted sensors?

JCI is the responsible DDC control contractor and they make decision in this regard.

20. The existing VAV boxes have sound attenuators downstream of the boxes. Should the sound attenuators be demoed and removed or should the contractor provide new? If the answer is yes to either scenario to provide or utilize existing, please provide the detail for coil access. If the existing sound attenuators are to be demolished, additional ductwork will be required. Please provide direction.

Attenuators on existing terminal units are to remain.

21. Is a drain pan required under the new humidifier dispersion sections?

No pan is required.

22. Please specify the make model #, size, and location for the fire damper(s) to be replaced.

Dampers shall be of the combination fire and smoke damper type.

Make and model selections are to be made by the contractor.

Fire dampers are to be installed in the air handler supply and return ductwork which are 60x46 each. Contractor shall remove and dispose of existing fire dampers and install new fire dampers in the in the same location.

Dampers shall be Multi-blade type units meeting all requirements of both fire dampers and smoke dampers.

a. Maximum air velocity, through free area of open damper, and pressure loss: Low pressure and medium pressure duct (supply, return, exhaust, outside air): 450 m/min (1500 fpm). Maximum static pressure loss: 32 Pa (0. 13 inch W.G.).

b. Maximum air leakage, closed damper: 0.32 cubic meters /min/square meter (4.0 CFM per square foot) at 750 Pa (3inch W.G.) differential pressure.

c. Minimum requirements for dampers:

1) Frame: Galvanized steel channel with side, top and bottom stops or seals.

2) Blades: Galvanized steel, parallel type preferably, 300 mm (12 inch) maximum width, edges sealed with neoprene, rubber or felt, if required to meet minimum leakage. Airfoil streamlined) type for minimum noise generation and pressure drop are preferred for duct mounted dampers.

3) Shafts: Galvanized steel.

4) Bearings: Nylon, bronze sleeve or ball type.

5) Hardware: Zinc plated.

6) Operation: Automatic open/close. No smoke damper that requires manual reset or link replacement after actuation is acceptable.

Motor operator (actuator): Provide pneumatic or electric as required by the automatic control system, externally mounted on stand-offs to allow complete insulation coverage.

SECTION 23 31 00

HVAC DUCTS AND CASINGS

PART 1 GENERAL

1.1 DESCRIPTION

1.2 RELATED WORK

1.3 QUALITY ASSURANCE

1.4 SUBMITTALS

1.5 APPLICABLE PUBLICATIONS

PART 2 PRODUCTS

2.1 DUCT MATERIALS AND SEALANTS

2.2 DUCT CONSTRUCTION AND INSTALLATION

> 50 mm to 75 mm (2 inch to 3 inch) > 75 mm to 100 mm (3 inch to 4 inch) Show pressure classifications on the floor plans.

2.3 DUCT ACCESS DOORS, PANELS AND SECTIONS

2.4 FIRE DAMPERS

2.5 SMOKE DAMPERS

2.6 COMBINATION FIRE AND SMOKE DAMPERS

Combination fire and smoke dampers: Multiblade type units meeting all requirements of both fire dampers and smoke dampers shall be used.

part 3 - execution

3.1 INSTALLATION

3.2 DUCT LEAKAGE TESTS AND REPAIR

3.3 testing, adjusting and balancing (tab) A. Refer to Section 23 05 93, TESTING, ADJUSTING, and BALANCING FOR HVAC.

3.4 operating and performance tests A. Refer to Section 23 05 11, COMMON WORK RESULTS FOR HVAC and STEAM GENERATION E N D See attached document: 2nd Site Visit Sign-In Sheet.

23 31 00 pg 12