RFP Addendum 03 (511.26450.JLM).pdf

CUI

DTMB-0414 RFP (Rev 2/22)

DEPARTMENT OF TECHNOLOGY, MANAGEMENT AND BUDGET

State Facilities Administration Design and Construction Division

REQUEST FOR PROPOSAL

ADDENDUM NO. 03

This form identifies an Addendum to a Request for Proposal for Professional Services, and incorporates interpretations or clarifications, modifications, and other information into the Request for Proposals.

Addenda will be numbered by the Project Director and distributed through SIGMA Vendor VSS as an attachment.

TO:

ALL PROPOSERS

DATE ISSUED

08/21/2026

PROJECT NAME

MBMV262004 A31 ADAL Server Room 6900 Battle Creek Air National Guard Base

FILE NUMBER

511/26450.JLM

PROJECT DIRECTOR

Josiah Meyers

PROPOSAL DUE DATE:

August 27, 2026

ADDENDUM ITEMS: (attach additional sheets and drawings if required)

General Clarification - Mechanical/HVAC Water Treatment:

If the Professional Services Contractor's (PSC) proposed mechanical cooling solution for the Grade 3 server room requires the use of water (including, but not limited to, chilled water loops, condenser water loops, evaporative heat rejection, or in-room humidification), the design must explicitly include a comprehensive water conditioning and treatment system.

This treatment system must be engineered to actively prevent scaling, corrosion, and biological fouling (e.g., Legionella). The inclusion of this system is mandatory to ensure the long-term reliability, thermal efficiency, and lifecycle of the critical cooling infrastructure, consistent with the high-availability requirements of UFC 4- 141-03.

Please note the following RFI responses:

General / Scope

1. Will the Owner provide CTTA services? Response: Yes. The Owner will coordinate and provide any required CTTA services as part of the project development process.

2. Will the Owner provide available hazardous materials reports? Response: Yes. Any existing and available hazardous materials reports for the project area will be provided to the Professional Services Contractor (PSC) after contract award.

3. Is a specific Uptime Institute Tier classification (Tier I–IV) required? Response: No specific Uptime Institute Tier classification is required. The design will be governed by UFC 4-141-03 for a Grade 3 facility. The PSC should use the UFC standard as the basis for all design decisions, though they may reference Uptime Institute Tiers for illustrative or comparison purposes in their Phase 300 recommendations.

4. During the project walkthrough, two potential server room locations were discussed. At what phase will the final location be selected? Response: The final server room location will be selected during Phase 300.

http://www.buy4michigan.com/

5. What is the capacity of the existing server room cooling system? Response: Existing cooling system capacity will be verified as part of Phase 300 field investigation. Available information will be shared at design kickoff.

6. What are the capacity, airflow, and refrigerant type of the existing CRAC units? Response: These details will be verified as part of Phase 300 field investigation. Available information will be shared at design kickoff.

7. Is a transition to chilled‑water CRAH systems planned? Response: No transition is currently planned.

PSC may evaluate chilled‑water options as alternates with recommendations in Phase 300.

8. What is the existing chiller capacity? Response: Chiller capacity shall be confirmed through field investigation and existing documentation review after contract award.

9. Are redundant mechanical/electrical distribution paths required in addition to the specified N+1 and A/B systems? Response: Redundant distribution paths beyond what is required for a UFC 4-141-03 Grade 3 facility are not required at this stage. The PSC must design all critical systems to meet Grade 3 standards, which mandate that mechanical cooling systems (HVAC) achieve the same N+1 redundancy level as the electrical power systems. Furthermore, the PSC’s electrical design must ensure that all server room lighting, Intrusion Detection Systems (IDS), physical access controls, convenient wall outlets, and all safety/fire-suppression systems are fully generator-backed downstream of the existing ATS to maintain complete physical security and operational safety during a utility power outage. The PSC may propose enhancements beyond Grade 3 if a clear benefit to mission reliability is identified.

10. What temperature and humidity criteria apply to the “High‑Density” load designation? Response:

ASHRAE TC 9.9 allowable/ recommended ranges apply unless otherwise directed in the RFP. PSC should confirm proposed criteria during Phase 300.

11. Are contaminant monitoring and controls required beyond MERV 13 filtration? Response: No additional contaminant monitoring is required.

12. Is battery storage required, and if so, are dedicated battery storage spaces required? Response: The primary design must focus on the dual-input modular UPS units specified in Response #18. However, the Government is not opposed to an external Battery Energy Storage System (BESS) if the PSC’s technical analysis and design calculations demonstrate a clear operational or reliability benefit for a Grade 3 facility.

Any proposed external BESS must be fully justified, cost-analyzed, and included as an optional design enhancement within the Phase 300 submission.

13. Are HVAC fault detection and diagnostics systems required? Response: Yes. The proposed HVAC system must be fully integrated and compatible with the existing Trane Building Control System. This integration must provide full control and monitoring capabilities, including system operation, faults, and control of redundant components. The design must ensure that a failure of the primary building control path does not impact the autonomous operation of the server room's redundant HVAC systems.

14. Is CFD analysis required for Hot Aisle/Cold Aisle Containment? Response: No. CFD analysis is not required at this phase. However, the PSC is responsible for designing a cooling solution that demonstrably meets ASHRAE TC 9.9 guidelines for the specified high-density loads and should recommend if CFD analysis becomes necessary based on their final design.

15. Are TAB services required as part of the Phase 600/700 Construction Administration scope? Response:

Yes. TAB services will be required by the contractor during construction. PSC will need to review/approve TAB reports and verify inclusion in project close-out documents.

16. Are commissioning services required as part of the Phase 600/700 Construction Administration scope?

Response: Yes. Commissioning of mechanical systems will be required by third-party as part of the construction contract.

17. Will the server room require a dedicated generator and automatic transfer switch, or will it use the existing facility generator? Response: The PSC must conduct a comprehensive engineering evaluation of the existing generator to determine its suitability for this project. This evaluation must analyze the generator’s age, physical condition, maintenance history, overall reliability, and total capacity against the new design load (including the 25% growth factor and the full mechanical cooling load required for a Grade 3 facility).

Use of the existing generator is preferred if these criteria can be met; however, if the PSC’s technical analysis determines that the existing unit is insufficient or near its operational end-of-life, the PSC must provide detailed calculations, cost-benefit analyses, and engineering justifications to support a recommendation for an upgrade or replacement.

18. Should A‑ and B‑side power be provided from separate utility sources with generator backup, or should one side be utility‑fed and the other generator‑fed? Response: Neither proposed option is acceptable due to site infrastructure constraints and UFC 4-141-03 Grade 3 compliance requirements. Because the building possesses only a single utility feed and a single generator tied together via an existing Automatic Transfer Switch (ATS), the design firm must utilize this existing infrastructure to feed a new Dual-Input Modular UPS chassis per classification (NIPR and SIPR). Downstream of the existing ATS, the new electrical distribution must split into independent A-side and B-side generator-backed feeds that connect directly into the Primary/Mains and Secondary/Bypass inputs of each new dual-input UPS chassis. Inside the single UPS chassis, the system must utilize hot-swappable, internally redundant power modules configured as N+1 to distribute protected, continuous A/B power directly to the server racks. This dual-input modular approach leverages the existing ATS to prevent a 10-second blackout gap during generator startup, eliminates the need for an expensive second utility feed, and fully satisfies Grade 3 high-availability requirements within a single-chassis budget footprint.

19. What are the existing generator capacity, fuel‑storage capacity, and rated duration, and is additional fuel storage required? Response: PSC should evaluate existing generator capacity, compare to determined electrical design loads, and recommend and design appropriate equipment per applicable UFC’s.

20. Are short‑circuit, coordination, and arc‑flash studies required, and are existing studies available?

Response: No, not included in scope.

21. Is the existing UPS dedicated to the server room or shared with other facility loads? Response: The existing UPS is dedicated to the server room

22. The existing UPS was indicated to be non‑operational during the walkthrough. Should a new UPS be included in this project? Response: Yes. The PSC must include a new, properly-sized Dual-Input Modular UPS in the design, adhering to the architecture specified in Response #18. The UPS battery backup must provide a minimum of 15 minutes of runtime at full design load (calculated at battery End of Life [EOL] and including the 25% future growth factor) to allow for safe generator transition or graceful system shutdown.

Purchase of the UPS would be funded outside of the construction contract and may be included in the construction contract as government-furnished equipment that is installed by the contractor (TBD). The PSC remains responsible for providing the complete design, layout, physical space planning, and technical specifications for this recommended solution.

23. Is a UPS bypass / maintenance bypass required? Response: Yes, an integrated maintenance bypass within the UPS system is acceptable and required for routine module servicing. However, to meet UFC 4- 141-03 Grade 3 high-availability requirements, the PSC must also design an external, wall-mounted Maintenance Bypass Panel (MBP). This external MBP must allow for the complete physical isolation, de-energization, and removal of the entire UPS chassis for major repairs or replacement without interrupting power to the downstream NIPR and SIPR server racks.

24. Is the electrical consultant responsible only for server room power distribution, or does the scope include IT / Telecommunications infrastructure? Response: See response in Addendum no. 2.

25. Will the proposed SIPR head‑end process, store, use, or transmit SCI or SAP information in addition to SIPR information? Response: No. Only SIPR information is anticipated.

26. If SCI or SAP information is involved, will SCIF‑related requirements apply, and if so, which criteria?

SCIF requirements are not anticipated. If triggered, UFC 4‑010‑05 and ICD 705 criteria would apply;

otherwise not required. Response: N/A. See response #25.

27. What are the current IT loads, and what design load should be used for the 25% growth requirement?

Response: Current IT loads will be provided to the PSC at project kickoff. PSC should design with 25% growth above confirmed baseline loads.

28. How many racks are anticipated in the new server room? Response: Final rack count will be confirmed in Phase 300.

29. What is the anticipated load per rack in kW, kVA, and/or amps? Response: Load per rack will be provided or confirmed in Phase 300. PSC should assume high‑density rack loads unless otherwise directed.

30. ADAL Server Bldg 6900, SCIF and Compartmented Areas, RF Shielding/TEMPEST requirement. Did the Certified TEMPEST Technical Authority (CTTA) determine that RF Shielding/TEMPEST will be required for this project? Response: The CTTA's final determination is pending a review of the PSC’s Phase 300 design documents. The PSC should proceed with the design assuming that TEMPEST requirements are not required, but must ensure the design does not preclude the future addition of RF shielding should the CTTA's review require it.

31. Please verify the current server room is Room 310 (not 310 SF). Does Room 310 have a raised floor? Is a raise floor for the new server room preferable? Response: The existing unclassified server room has raised floors; the classified room does not. For this new project, raised floors are not desired. The preferred design approach is a hard-deck floor with overhead distribution for power and network cabling.

32. CUI Requirements. Though no “CUI” documentation or requirement has been seen so far, will the project require “CUI” labeling? Response: Yes, expectation is some of the documents or reports will need to be labeled and handled as “CUI” information.

33. Is the server room in a secured area? Response: Yes.

34. Is the server room currently or planned to be handling any classified networks? If yes, what levels of classification? Response: Yes, this project is specifically to add/alter the SIPR server room.

35. Can electrical as-builts be provided for this facility? Response: Yes, the as-builts will be provided to the selected PSC after contract award.

36. Are additional backbone cables for the expanded server room required or is the existing cabling infrastructure sufficient? Response: To be verified by the PSC during Phase 300.

37. Are there any modifications to adjacent rooms/spaces required as a result of this server room expansion?

For example, if additional networks are being added to the server room, will horizontal distribution infrastructure need to be added to supply certain areas of the building? Or the scope limited to just the server room expansion and any upgrades required to facilitate that server room expansion? Response: The project scope is limited to the server room footprint and the infrastructure required to make it fully functional. The PSC's design must include all necessary horizontal and vertical power and data distribution infrastructure required by the final Phase 300 location selection. For example, a 1st-floor location will require vertical distribution to the secure operations office above.

38. Is A/B power already supplying the existing server room? Response: The existing unclassified server room has A/B power; the existing classified room does not. Be advised, the new Grade 3 server room for this project must be designed with full A/B redundant power from the ground up, as specified in Response #18.

39. Is there an existing generator? Will a generator need to be added/upgraded for this server room expansion? Response: See responses #17 and #19 above.

40. UFC 4-141-03 describes facility grading (redundancy, resiliency grades). Since A/B power is required, is there a particular grade that has been identified for this facility or is this UFC considered not applicable for this application? Response: Yes, UFC 4-141-03 is applicable and compliance is mandatory. This facility is designated as Grade 3 (High-Availability). All design submissions from the PSC must demonstrate full compliance with all electrical and mechanical resiliency requirements for a Grade 3 facility as defined in the

UFC.

41. Is there an existing centralized UPS? If yes, does UPS capacity need assessed/increased or is that out of this projects scope? Response: See response #22 above.

42. How many racks/systems/electrical load is being added to this server room? Are existing racks being shifted/modified as a part of this effort? Response: See responses #28 and #29 above.

43. RFP documents mention that room 304 may be added to the server room as well. That's a substantial difference in server room size from adding only rooms 305/311. Will the AE be responsible for determining if 304 needs to be added to the expanded server room or will that be determined by the government?

Response: Yes, that will be determined/recommended by the PSC during Phase 300.

The proposal due date remains unchanged

APPROVED BY: Josiah Meyers

PROJECT DIRECTOR DATE 8/21/2026