697DCK-22-R-00179 Amendment 0001.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE

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

PAGE OF PAGES

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

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

CODE

9A. AMENDMENT OF SOLICITATION NO.

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE

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

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 is extended, is not extended.

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.

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

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO THE AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation date, etc.) SET FORTH IN ITEM 14.

E. IMPORTANT: Contractor is not, is required to sign this document and return

ORDER NO. IN ITEM 10A.

1 1

0001 06/28/2022

FEDERAL AVIATION ADMINISTRATION

WESTERN LOGISTICS SERVICE AREA

ACQUISITION GROUP, ANM-52

1601 LIND AVE SW

ANM0052-ARC

RENTON WA 98057

FEDERAL AVIATION ADMINISTRATION

AAQ-500 - REGIONAL ACQUISITIONS

2200 S. 216TH STREET

DES MOINES WA 98198-6547

AAQ530ANM-AFN

x

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

separate letter or telegram which includes a reference to the solicitation and amendment number. 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 this amendment, and is received prior to the opening hour and date specified.

copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By ___________ 1 x x

697DCK-22-R-00179

1 copies to the issuing office.

05/09/2022

(x)

Amendment 0001 is to incorporate the following Contract Clause 3.2.4-4 Fixed-Price

Contracts with Economic Price Adjustments-Labor and Material (Oct 2019) into this contract

& to post the questions received and their applicable answers.

Offer deadline date is being extended to 5:00 PM (MT), Wednesday, July 13, 2022.

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. CONTRACT AUTHORITY 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

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

Cynthia A. Tjelde

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

ZDV AHUs 1-10 Replacement Project

RFO 697DCK-22-R-00179

Questions & Answers

1. Confirm the required access paths for all AHUs. This is typically most helpful when provided on a floor plan map of the facility, if possible.

a. AHU access paths will depend on final AHU dimensions and contractor’s desired installation method. Please see Attachment 1- Guide Plan – Floor 1 for acceptable paths depending on AHU dimensions.

2. Confirm if temporary cooling is to be provided as part of the project.

a. Temporary cooling is not necessary as part of this project. AHUs provide redundant cooling so long as no more than one unit is out of service per floor.

3. Confirm if the hot water or chilled water loops have glycol and, if so, the % of water/glycol mixture.

a. Neither loops contain glycol.

4. Confirm if temporary ventilation will be required when SF-1 is replaced.

a. Temporary ventilation is not required.

5. Confirm if alternative air handling unit manufactures are acceptable, other than Data Aire.

a. Alternative AHU manufacturers are acceptable; Data Aire was the basis of design.

6. Confirm if alternative supply fan manufactures are acceptable.

a. Alternative supply fan manufacturers are acceptable; Twin City Fan was the basis of design.

7. Confirm if permit is required.

a. Need more clarification on which permits. The FAA has internal permits for construction activities.

8. Confirm if taxes are exempt.

a. The contractor is considered consumer of goods when providing construction services to the FAA, therefore, the project is not tax exempt. See RFO Section B, B001, “The offered price must include all costs related to…(b) federal, state, and local taxes.”

9. Confirm warranty period.

a. Please refer to the specific specification sections and contract clauses as warranty periods differ for the type of equipment and material installed.

10. How will Johnson Controls be involved in the project?

a. Johnson Controls is not involved unless subcontracted by the prime. The facility operates via Schneider Electric Controls and utilizes their hardware, software and customer support for servicing and warranty.

11. Are we to provide the equipment? AHUs?

a. All equipment and materials necessary for the project are to be provided by the contractor.

12. Can panel schedules for all electrical panels that are affected by this project, along with existing breaker sizes, be provided?

a. See the following panel schedules Attachments:

Attachment 3 – PnL – E-12-A-A Attachment 4 – PnL – E-12-A-B Attachment 5 – PnL – E-12-A-C Attachment 6 – PnL – E-12-A-D Additional panel schedules are available upon request, if needed.

13. What are the supply lines’ sizes to the units now?

a. Existing pipe sizes are indicated on the demolition sheets of the drawing set.

14. What are the lines made of (copper, PVC…). They are covered in insulation so we could not see them.

a. AHU piping is made of Copper.

15. Do all the lines need to be reinsulated?

a. Yes. Insulation, wherever removed for any reason, needs to be replaced as specified in sections 024119 Selective Demolition and 230719 HVAC Piping Insulation.

16. Can we store the new chiller in the space downstairs as we replace them as opposed to having to deliver one per installation?

a. No chillers are necessary as part of this project. Demolished and new AHUs may be stored in the basement in room B12A of the Automation Wing.

17. Do we need a fire burn permit (because we will need to cut a soldier pipe) or can we just coordinate when we will need to cut so there is no surprise of the smell of something burning in the building?

a. FAA Hot Work Permits will be necessary for every location where hot work will occur and for every day of the occurrence. These will be coordinated post award.

18. Will you allow a Pro Press connection versus Die Lec Tric.

a. Pro Press connections are not directly comparable to dielectric fittings. Need more clarification on question intent.

19. JCI manages the controls in the building. Can you provide a contact for JCI since their controls and equipment are proprietary and we will need to coordinate the upgrades and any modifications necessary?

a. Schneider Electric manages controls for the facility. Their point of contact is Herbert Walker at Herbert.Walker@secritical.com or 443-832-8275.

20. Fire suppression system integration – Who is currently managing/controlling your suppression systems? Can you provide a contact so we can coordinate any upgrades as part of the modification?

a. Frontier Fire Protection manages the fire suppression system for the facility. They can be contacted at 303-629-0221.

21. Do you have the “as-is” drawings for the current piping and electrical related to the units being replaced?

a. Drawing set demolition sheets depicts the as-is piping arrangement. Legacy as-is drawings are no longer available.

22. Is the contractor responsible for the commissioning scope on this project? Can you provide a commissioning plan?

a. There is no commissioning scope. Contractor is responsible for unit startup and re-establishing the sequence of operation for the equipment controls. This is indicated in section 238123 of the specifications and on drawings 1403751-M201 and 1403754-M201.

23. Due to the ongoing fluctuations and market uncertainty and to limit windfalls and disasters, we are requesting that this contract be subject to AMS Clause 3.2.4-4 Fixed-Price Contracts with Economic Price Adjustment-Labor and Material.

a. Yes, Contract Clause 3.2.4-4 Fixed-Price Contracts with Economic Price Adjustment- Labor and Material (October 2019) is being incorporated into this contract. See RFO Amendment 0001.

24. Can you waive the bond requirement on this project?

a. No, both payment and performance bonds are required on this contract.

Questions & Answers

25. The freight elevators are 78” square and do not seem to fit the new AHUs 1-5. What other options are there to get the AHUs on the floor above?

a. AHU access paths will depend on final AHU dimensions and contractors desired installation method. Please see Attachment 1- Guide Plan – Floor 1 for acceptable paths depending on AHU dimensions.

26. Can all the AHUs be stored on the floor they need to be installed on to reduce the number of mobilizations to get the units into the building?

a. There is no room on the 1st floor to store the AHUs. There is room in the Automation Wing basement to store the AHUs.

27. What is the existing sequence of operations on the controls for the AHUs 1-10?

a. Please see Attachment 2 – Sequence of Operations – AHU 1-10 & SF-1 in PDF form.

Please note we are currently waiting on receipt of as-built sequencing documentation from another project as the controls for this equipment was recently upgraded. The as-built sequencing documents will be provided post award.

28. The AHUs on the same plane seem to have the drains piped to a common pipe. Is this acceptable?

a. Yes.

29. What work needs to be completed during off hours and during normal hours?

a. Any work that can be expected to cause excessive vibrations, disruptive odors or noises that could impede facility air traffic operations. For example, Rigging on the first floor is to be done during off hours.

30. Do the AHUs need to connect to the existing fire alarm system?

a. Yes, the existing AHUs have smoke detectors integrated into their chassis that are connected to the facility fire alarm and building automation systems. The new AHUs will require the same integrations with our systems.

31. What is the controls sequencing required on SF-1?

a. Please see Attachment 2 – Sequence of Operations AHU 1-10 & SF-1 in PDF form.

Please note we are currently waiting on receipt of as-built sequencing documentation from another project as the controls for this equipment was recently upgraded. The as-built sequencing documents will be provided post award.

32. Does the warranty occur one each AHU after start up occurs?

a. Warranty for the equipment occurs after successful unit startup. Warranty for workmanship occurs after substantial completion of the contract. Please refer to section 238123 of the specifications and applicable contract clauses.

33. Does the existing raised floor need to be modified after the units are placed?

a. The raised floor tiles may need to be modified for fitment depending on the final

AHU dimensions, this can be done before or after unit install.

34. Underneath the raised floor does not need to be cleaned?

a. No.

35. Do all the isolation valves work properly to the AHUs 1-10?

a. Yes.

36. Does the heating water piping and chilled water piping need to be replaced on SF-1? Or just the control valves on the unit?

a. No piping for SF-1 is to be replaced, only control valves and actuators in kind. If piping is found to be faulty or poor condition please notify the FAA.

37. Can the NTP be awarded after the AHUs arrive onsite due to long lead times?

a. Yes. The Notice to Proceed is not issued until submittals are submitted and approved and the contractor has taken into consideration all lead times.

38. Do we need to provide a bonding letter, bond, or Cert of Insurance?

a. The contractor is required to provide payment and performance bonds and a certificate of insurance after contract award.

39. Can a copy of the site visit sign in list be distributed to the offerors?

a. Yes, email cindi.tjelde@faa.gov to request a copy of the site visit sign in sheet.

40. Due what hours can rigging of the equipment into and out of the facility occur?

a. Rigging in the basement can occur at any time. Rigging on the first floor can occur any time before 0600 and any time after 1600. These times are subject to change depending on air traffic load, facility operations, and the level of disturbance due to rigging.

41. Confirm work hours allowed onsite.

a. Please refer to specification section 011000 Summary for contract work hours.

42. Are the CRAC units redundant?

a. Yes, the AHUs provide redundant cooling so long as no more than one unit is out of service per floor.

43. Confirm the freight elevator can be used to move men, materials, and equipment.

a. Yes, the freight elevator may be used for the support of this contract; however, the contractor is responsible for all damages if any were to occur due to their use.

44. During the site walk, we were unable to locate the power panels to be renovated on this project. Provide make, model, and location of the following panelboards:

a) PNL E-12A-A

a. Siemens, Catalog No. S3F30JX300ETS, Serial No. 17-24808-H02, Room B12A of the

Automation Wing

b) PNL E-12A-B

a. Siemens, Catalog No. S3F30JX300ETS, Serial No. 17-24808-H02, Room B12A of the

c) PNL E-12A-C

a. Siemens, Catalog No. S3F30JX300ETS, Serial No. 17-24808-H00, Room B12A of the

45. With regard to the offeror submission and Criterion No. 3, can CPARS (Contractor

Performance Assessment Reporting System) be submitted for recent projects in place of CSS (Customer Satisfaction Surveys)?

a. Yes, see RFO Section M, M001, Criterion #3, for additional information.

46. Which Access Floor System & Understructure is installed ( Do you have any images of the top, bottom, (Side with writing or marks) of Solid Panels, Airflow Panels & Understructure

a. Our Access Floor System consists of Tate ConCore 1250 solid panels and bolted stringers for the understructure but some tiles may have PosiLock pedestal heads for fastening.

47. Do the removed AHU Units & Stands and the New AHU & Stands have the same dimensions?

a. This is dependent on the final AHUs chosen by the contractor and is unknown at this time.

48. Who is responsible for the Air Plenum described on sheet M501 and is that a temporary situation?

a. The contractor is responsible for constructing the air plenum according to the detail.

This is for permanent installation.

49. What is the duration period of removing each AHU and how many will be replaced at 1 time?

a. We estimate one month to replace each AHU should suffice, however, the duration is determined by the means and methods, which is chosen by the contractor. Only one AHU per floor may be replaced at a time.

50. Are any additional Airflow Panels needed in the access floor?

a. No.

51. Do we have a size & layout of piping to the new AHU to determine if bridging is required?

52. How much of the access floor needs to be removed for the new AHU & Stand installation?