33330223RF0010042 Amendment 002.pdf

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33330223RF0010042

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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 electronic communication which includes a reference to the solicitation and amendment numbers. 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 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.

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OCON

Washington DC 20013-7012 PO Box 37012

MRC 1200

SMITHSONIAN INSTITUTION

188370108/24/20230002

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

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

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

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

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

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

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

07/24/2023

CHECK ONE 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 AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

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

ORDER NO. IN ITEM 10A.

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

A. The Solicitation Number cited above, for SAO-HI (SMA): PACU Replacement at the

Smithsonian Astrophysical Observatory Submillimeter Array Facility (SMA), located in Mauna

Kea Science Reserve, Hawaii, is hereby amended as follows:

A.1. Attached hereto and made part of this Amendment Two are the following:

Responses to RFI Questions No. 1-39

Governair As Built Drawing File

Site Visit Informal Sign Up Sheet

Continued ...

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

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

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

Willard B. Powell

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

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 .

ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

NAME OF OFFEROR OR CONTRACTOR

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF

(A) (B) (C) (D) (E) (F)

33330223RF0010042/0002

A.2. Offerors shall acknowledge receipt of all amendments to this solicitation signed and dated and submit with proposal.

B. The Due Date for Receipt of Proposals remains

August 31, 2023, at 5:00 PM EST.

Except as provided herein, all other provisions, terms and conditions of the Solicitation remain unchanged.

END OF AMENDMENT TWO

NSN 7540-01-152-8067 OPTIONAL FORM 336 (4-86)

Sponsored by GSA

FAR (48 CFR) 53.110

1883701 SAO SMA PACU Replacement - SI RFI Responses Page 1 of 6

SI RFIs 1-39 and SI Responses in bold

1. Per M.1. 52.215-S0095 Basis of Award (Jun 2009), The evaluation will be best value.

However it states further in M.2 Evaluation of Offers – Lowest Price Technically Acceptable (LPTA). During the site walk it was expressed how important the research is and that it takes priority over work and that the contractors technical proposal should express their approach to this sensitive subject. Can the Smithsonian Institute (SI) confirm if the evaluation will be best value or LPTA?

RFI 1 SI Response: Best Value is a continuum with LPTA on one end and Trade-off on the other (FAR 15.101). The evaluation will be based on LPTA, not Trade-off.

2. If the evaluation method is to be LPTA how will the SI decide which technical approach is best and most beneficial? The more expensive technical approach may have all of the proper controls, sequencing and methodologies.

RFI 2 SI Response: The award will be made on the basis of the lowest evaluated price proposals meeting the acceptability standards for non-price factors.

Reference Section L and M of the RFP.

3. Can the SI confirm if the research equipment will be effected by the contractors task/activities due to vibrations or frequencies? We would like to better understand the sensitivities when working around the specific equipment at the SMA.

RFI 3 SI Response: In general, hand power tools such as drills and saws should not pose a problem. Vibrations inside the Correlator Room may disturb equipment. The vibration source and frequency will need to be specified to make a definitive determination if damage could occur.

Yes, RF frequencies at a high power can disrupt and/or damage equipment inside the Correlator Room. Frequencies outside the room cannot damage equipment. A standard practice is to keep RF to a minimum.

4. Will night work be allowed?

RFI 4 SI Response: Generally no. There may be exceptions on a case by case basis.

5. Does the SI require a minimum key personnel roster to be onsite at all times? For example the SI would like a Project Manager, Site Safety Health Officer (SSHO), Quality Control Manger (QCM) and Superintendent onsite at all times.

RFI 5 SI Response: Generally no, the General Contractor (GC) is responsible for providing adequate oversite for implementing the project.

6. Can the SI confirm if key personnel roles can be dual-hated, triple-hatted? For example the Site Safety Health Officer can also be the Superintendent and Quality Control Manager.

RFI 6 SI Response: Generally no, the GC is responsible for providing adequate oversite for implementing the project.

7. Can the SI confirm if there are restrictions on specific type of transport vehicles/craft that are allowed up at the site?

RFI 7 SI Response: See Division One sections 15, 16 , 18, Appendix B SOP#1 and SOP#2 for additional information.

1883701 SAO SMA PACU Replacement - SI RFI Responses Page 2 of 6

8. Can the SI confirm if there are restrictions on specific type of lifting equipment that are allowed up at the site i.e. cranes?

RFI 8 SI Response: Generally no, though all equipment transiting to the site must be approved by the Center for Maunakea Stewardship (CMS).

9. Per Specification section 15.3 (pg 13), it states cellular phone use will be restricted to emergency calls only.

1. Can the SI confirm this is accurate?

2. If cell phones are restricted will calls over wifi be allowed? If not, is it to be assumed the contractor will be able to use SI phones to conduct business?

RFI 9.1 SI Response: Yes, that is accurate.

RFI 9.2 SI Response: Calls over wifi are not available. Wifi is prohibited at the science reserve. SI will provide access to a SI land line phone to conduct project only business.

10. Can the SI confirm what type of inspections are required for shipments (material and equipment) and vehicles to be received at the site?

RFI 10 SI Response: See Division 15, Appendix B SOP#1 and SOP#2 sections for additional information.

11. Drawing MD-102 notes to remove the existing package A/C unit. Please furnish the approved shop drawings for the package A/C unit. In particular looking for the overall weight and dimensions of the existing package A/C unit.

RFI 11 SI Response: The unit is located outdoors on a concrete pad next to the Correlator Room and is approximately 270”L x 134”W x 120”H , see attached Govenair as builts. Weight information not currently available.

12. Specification section 230500, paragraph 3.9.P states to clean all ducts scheduled to be reused. Drawing M-001, Construction Phasing Note #2 notes that the facility will be operational 7-days a week and the continuous operation of the facility may restrict the contractor’s work.

a. Please confirm that the existing A/C equipment, can be shut-down while the corresponding ducts are being cleaned.

b. Please confirm that the existing A/C equipment, (Package A/C unit, ACCU’s, FCU’s, etc.) can be shut-down for one 8-hour outage to incorporate temporary cooling to the building. Shut downs for each unit may be on separate days.

RFI 12.a. SI Response: Yes, the A/C units can be turned off for cleaning. SI staff will need to be informed to protect equipment.

RFI 12.b. SI Response: Yes, the A/C units can be turned off for 8 hr periods. SI staff will need to be informed to turn off equipment and schedule downtime.

13. Drawing A-301, East Exterior Elevation notes the refrigeration piping to the second floor is on the outside of the building. Please confirm that the existing wall penetrations to the server room can be reused.

RFI 13 SI Response: Reusing the current location, if practical, considering coordination and layout to be determined.

1883701 SAO SMA PACU Replacement - SI RFI Responses Page 3 of 6

14. Specification Section 2305002.2.f. specifies for coated copper fin/copper tube condenser coils. These coils are no longer available on the Basis of Design Chiller. Please confirm that coated microchannel condenser coils are acceptable.

RFI 14 SI Response: Contractor shall meet requirements of specifications and drawings. The basis of design establishes the significant qualities of the equipment for purposes of evaluating comparable products of other manufacturers but the requirements in the specifications must be met for all equipment. Substitutions will be evaluated on a case by case basis after the project has been awarded.

14.1 As a follow-up to our RFI question #4, the Basis of Design Chillers, our supplier has informed us that in addition to the microchannels, the specified chiller can also be furnished with Al / Cu coils. However, Cu / Cu coils are no longer available with the 30RAP units. Both the microchannel and Al / Cu coils can be coated as specified.

Please confirm whether the new chillers are to be furnished with microchannels of Al / Cu coils.

RFI 14.1 SI Response: Substitutions will be evaluated on a case by case basis after the project has been awarded.

15. What factory warranty coverage is required on the air conditioning and ventilation equipment? If we have inadvertently missed it in the project documents, please refer us to the appropriate project specifications.

RFI 15 SI Response: This information is covered in spec section 230000 GENERAL

MECHANICAL PROVISIONS

16. The Basis of Design chiller manufacturer noted that the new chillers will be furnished with grooved connectors at the chilled water inlet/outlet connections. Please confirm that welded and grooved piping and fittings can be used for the new chilled water piping. Gaskets will compatible with the 40% glycol specified.

RFI 16 SI Response: Provide system that will meet Basis of Design and Specifications. Substitutions will be evaluated on a case by case basis after the project has been awarded.

17. Specification Section 230500, Paragraph 2.17.H notes “Heat Tracing”.

Please confirm/clarify the following;

a. Drawing E-501 notes that the voltage for the heat tracer will be 120v/20amp breakers. Please confirm if ground fault protection will be provided at the breakers?

b. Drawing M-207 notes that the condensate drain for AHU-1 needs to be heat traced. We could not locate the power source on the panel schedule. If we inadvertently overlooked this, please direct us to the drawings.

c. Is there a low ambient temperate we should consider for the design?

RFI 17 a. SI Response: Provide appropriate NEC compliant protection.

RFI 17 b. SI Response: Provide appropriate circuit and NEC compliant protection.

RFI 17 c. SI Response: The minimum ambient temperature for heat tracing shall match the ambient temperature of 12°F specified in the AIR COOLED WATER-

1883701 SAO SMA PACU Replacement - SI RFI Responses Page 4 of 6

GLYCOL CHILLER SCHEDULE on drawing M-0-02. Heat tracing shall meet requirements in specifications.

18. Drawing A-402 notes that there are (5 ea.) gates on at the new AC equipment.

Drawing A-601 notes that the gates are paneled with a standing seam siding.

a. Please confirm that the siding is being installed only on the gates. If we inadvertently overlooked the placement of siding on the remaining structure, please direct us to the drawing that shows this installation.

b. Please confirm that the standing seam siding for the gates will follow the same specifications as the roofing, Specification 074113, Para 2.2.

c. If the siding is being installed on the entire structure, according to the specified AC equipment supplier’s literature, the service and air flow clearances may not be met.

Please clarify/confirm.

RFI 18 a. SI Response: Correct RFI 18 b. SI Response: Correct RFI 18 c. SI Response: Not applicable

19. We would like to request allowing us to provide a DISTECH BAS-DDC Controls System, in lieu of our existing Alerton BAS-DDC System.

RFI 19 SI Response: Substitutions will be evaluated on a case by case basis after the project has been awarded.

20. Please confirm that this new BAS-DDC Control System is Not required to provide to interface into their existing Alerton BAS-DDC Controls.

RFI 20 SI Response: Correct, the existing control system is to be replaced with a new system.

21. Are we allowed to re-use the existing controls for the PACU? The existing controls OEM is SIEBE and was installed by Automatic Controls Engineers out of Oahu. The existing main controls cabinet may be re-used as well as the field wiring to the equipment room.

Obviously the new PACU wiring must be installed by the Controls electrician. FYI, much of the existing sensors inside the equipment room can be re-used. This would simplify matters greatly.

RFI 21 SI Response: No, all existing controls equipment, wiring, etc is to be replaced.

22. We recommended to the COTR that a temporary BAS be setup to control only critical equipment. IE PACU start/Stop (SA and RA fan) VFD speed control for the SA and RA based on SA duct static and SA temperature control (analog CHW valve).The chiller can be interlocked with relay. Economizer mode will have to be controlled as well.

RFI 22 SI Response: GC is responsible to determine how to maintain temporary conditions.

23. RFI substitution request for Distech controls as a approved controls vendor.

1883701 SAO SMA PACU Replacement - SI RFI Responses Page 5 of 6

RFI 23 SI Response: Substitutions will be evaluated on a case by case basis after the project has been awarded.

24. Can the TU temp sensors and DP sensors be reused? Or will new temperature and air pressure switches be required at all TU’s?

RFI 24 SI Response: No, all existing controls equipment, wiring, etc is to be

25. Can the two supply static pressure sensors be reused? or do they need to be replaced?

RFI 25 SI Response: No, all existing controls equipment, wiring, etc is to be

26. Request information regarding the Air Particulate Sensor. Please ask for OEM make and model number for an acceptable unit. This is needed for pricing. There was no such device in the current active system.

RFI 26 SI Response: Specifications for Particulate Monitor, PM-1, are detailed in specification section 230923, paragraph 2.3.E Fine Dust/Particulate Matter Transmitter.

27. Will the temporary AC system have built-in controls for supply air temperature control and static pressure control? If not, please indicate that the “controls contractor shall provide temporary DDC controls to meet this requirement.”

RFI 27 SI Response: GC is responsible to determine how to maintain temporary

28. During the construction period, is the temporary AC required to have an Economizer M ode? This feature requires the presence and control of dampers for OSA, Return and Exhaust air. If yes, the temporary AC equipment is responsible to supply all dampers and required actuators. Yes?

RFI 28 SI Response: GC is responsible to determine how to maintain temporary

29. Where is the VAV-1 in the Correlator room? The drawings show this device but it was not identified on the walk thru. We cannot ascertain what needs to be replaced. Please indicate if there are controllers and actuators to be replaced in this scope of work.

RFI 29 SI Response: VAV-1 is located in the Crawl Space as shown on drawing MD-1-01 and M-2-01. The controller, sensors and wiring shall be replaced as indicated on drawing MD-1-01 and M-2-01.

30. The one-line controls diagram shows two PC workstations. One at summit and one at base facility. Please confirm that the scope of work requires two PC workstations.

RFI 30 SI Response: Yes, two PCs will be required.

31. Will there be a dumpster available for subs to dispose of construction debris?

RFI 31 SI Response: Dumpster for construction debris is the responsibility of the General Contractor.

32. Will we be able to store equipment and supplies on site? If so, where?

1883701 SAO SMA PACU Replacement - SI RFI Responses Page 6 of 6

RFI 32 SI Response: There is very limited space for storage and will only be for short term. All storage will have to be coordinated with the SI COTR.

33. The existing ductless units are larger in BTU than the ones we are replacing them with. Is this correct?

RFI 33 SI Response: Yes, this correct.

34. The governed air located outside the facility according to the serial# is only 3 years old. Are you still looking to replace this 3-year old unit?

RFI 34 SI Response: The existing PACU is over 20 years old and is to be replaced.

35. Where is the glycol unit located on site?

RFI 35 SI Response: The Air-Cooled Water-Glycol Chiller Unit shall be located as shown on drawing M-2-02. The chilled water-glycol storage tank shall be field located as close to the make-up water fill point as site conditions allow pending approval.

36. Will you be replacing the ceiling tile and grid?

RFI 36 SI Response: Yes, in a future project. The timing of which is to be determined.

37. If awarded the project, our plan for the ductless unit would be to remove one, and install one, and use a temporary thermostat until all 3 have been installed and are up and running. Would this be ok?

RFI 37 SI Response: GC is responsible to determine sequence of installation and to maintain temporary conditions.

38. Are there two control systems monitoring that equipment or one? If there are two where would be the secondary system located?

RFI 38 SI Response: There is one control system with two monitoring locations.

39. Will we be able to bill for equipment that we will need to order with long lead time?

RFI 39 SI Response: Billing for equipment is allowed after it is received on site.