Atch 5 - QA - FA301626Q0235 - Remove and Replace CRAC Units and Chillers.pdf

Remove and Replace CRAC Units and Chillers Questions and Answers

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Contractor Question 1: In the SOW, Item 4 and 5 refers to “Government as built” or original submittal data. Are these documents available for review?

a) CE Response: Yes. As-builts/drawings are available for review. Please see attachment 3.

Contractor Question 2: Is there any required tie into the existing building controls?

a) CE Response: No, the current system is self-contained.

Contractor Question 3: The lighting and security camera will need to be relocated to provide clearance for the two 40-ton and two 45-ton CRAC

a) CE Response: Customer will provide a plan to adjust/remove cameras

Contractor Question 4: Oak Tree / Equipment Access: There is an oak tree adjacent to the chiller installation area that may interfere with equipment access, rigging, and overhead placement of the chillers. Will the Government prune or remove the tree as necessary to provide adequate access for removal of the existing equipment and installation of the new chillers, or will this be the awarded contractor’s responsibility?

a) CE Response: The government will prune or remove the tree as necessary.

Contractor Question 5: Chemical Pot Feeder: There is a chemical pot feeder located in the chiller yard. Is the chemical pot feeder required to be replaced as part of the scope of work?

a) CE Response: Yes

Contractor Question 6: Expansion / Buffer Tanks: Expansion or buffer tanks were not identified in either chiller pump package. Please confirm whether expansion and/or buffer tanks are required as part of the pump package.

a) CE Response: Yes, they’re required

Contractor Question 7: Chiller BACnet Interface: Please confirm whether the existing chillers utilize a BACnet interface to communicate with the building EMCS system.

a) CE Response: Chillers currently do not utilize the building EMCS system

Contractor Question 8: Equipment Nameplates: Please provide photographs of the equipment nameplates for all six CRAC/CRAH units.

a) CE Response: See question 27 for reference

Contractor Question 9: Control Valves: Please confirm whether the existing CRAH units utilize 2-way or 3-way valves and whether pressure-independent valves are required.

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a) CE Response: 3-way valves

Contractor Question 10: BACnet Interface: Please confirm whether the existing CRAH units utilize a BACnet interface to communicate with the building EMCS system.

a) CE Response: Current units do not use BACnet interface to communicate with the building EMCS system.

Contractor Question 11: Building-Level EMCS Controls: Please identify the contractor or organization responsible for the building-level EMCS controls. If BACnet is utilized, please confirm whether the awarded contractor’s scope is limited to disconnecting and reconnecting the BACnet trunk, with the Base EMCS contractor responsible for discovering and mapping the BACnet points into the Base EMCS system.

a) CE Response: BACnet is not utilized.

Contractor Question 12: EMCS Graphic Points: Please provide the existing graphic points for the CRAH units on the EMCS front end.

a) CE Response: The current system is self-contained and it is controlled locally.

Contractor Question 13: Temperature / Humidity Sensors: Please confirm whether the existing units utilize remote temperature and/or humidity sensors or whether temperature and humidity are controlled through return-air sensing at the units.

a) CE Response: Yes, current units utilize remote temperature and humidity sensors.

Contractor Question 14: Electric Heat: Please confirm whether the existing units have electric heat.

If so, please provide the number of stages and kW rating.

a) CE Response: Please see as-built schedule for reference

Contractor Question 15: Humidifiers: Please confirm whether the existing units contain humidifiers. If so, are they on/off or modulating?

a) CE Response: Yes, existing units do contain humidifiers and are currently modulating.

Contractor Question 16: Smoke Detection: Please confirm whether factory-installed smoke detectors are required for the new units or whether the existing building fire-alarm system will remain in place and be utilized.

a) CE Response: New units will require factory installed smoke detectors.

Contractor Question 17: Multi-Unit Sequencing: Please confirm whether multi-unit sequencing is required or whether the units should be sequenced based solely on space-temperature setpoint.

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a) CE Response: Based solely on space-temperature setpoint

Contractor Question 18: UPS Requirement: Please confirm that a UPS is not required for the new units.

a) CE Response: The current system is not connected to UPS but to the back up generator. UPS will not be required.

Contractor Question 19: Condensate Pumps / Leak Detection: Please confirm whether condensate pumps and/or remote leak detectors are required.

a) CE Response: Yes

Contractor Question 20: Equipment Mounting: Please confirm whether the existing units are mounted directly on the tile floor or mounted on a frame. If mounted on a frame, please provide the height from the finished floor to the top of the frame.

a) CE Response: See attached as-builts

Contractor Question 21: Floor Loading / Rigging: Please provide the allowable floor loading/weight rating for rigging operations in the CRAC/CRAH area.

a) CE Response: See attached as-builts

Contractor Question 22: Equipment Racks: Empty equipment racks are located in the small room on the opposite side of the CRAH units. Please confirm whether the Government can relocate these racks upon request and identify which cabinets/racks may be moved.

a) CE Response: Customer will provide a plan for relocation of the empty equipment racks.

Contractor Question 23: Storage Cabinet: There is a storage cabinet located on the wall adjacent to the exterior hallway. Please confirm whether the Government can relocate this cabinet upon request to facilitate equipment removal and installation.

a) CE Response: The government can relocate cabinet upon request

Contractor Question 24: Existing Unit Operational Status: Please identify which of the existing CRAC/CRAH units are currently operational and which are currently non-operational.

a) CE Response: CRAC units 1, 4,5 are running and 3,2, and 6 are not.

Contractor Question 25: CCTV Cameras: CCTV/security cameras appear to be located in areas that may interfere with equipment removal, rigging, or installation. If any cameras must be temporarily removed or relocated to complete the work, will the Government arrange for removal

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and reinstallation by its security/CCTV contractor, or will the awarded contractor be responsible for coordinating and performing that work?

a) CE Response: Awarded contractor will be responsible for coordinating the removal and reinstallation.

Contractor Question 26: Can one person "triple hat" as Superintendent, SSHO and QC Manager?

a) CE Response: Please refer to the Statement of Work (SOW). The Government will not dictate the specific methodologies or means by which the contractor executes the required tasks. It is expected that the contractor will deliver a fully integrated, complete, and operational system.

Contractor Question 27: Please provide Model & serial # of all CRAC units to be replaced.

a) CE Response: CRAC-01 MODEL NUMBER DACD-4534 SERIAL NUMBER 2009- 2412-A

b) CRAC-02 MODEL NUMBER DACD-4534 SERIAL NUMBER 2009-2410-A

c) CRAC-03 MODEL NUMBER DACD-4534 SERIAL NUMBER 2009-2411-A

d) CRAC-04 MODEL NUMBER DACD-4534 SERIAL NUMBER 2009-2413-A

e) CRAC-05 MODEL NUMBER DACD-2234 SERIAL NUMBER 2009-2409-A

f) CRAC-06 MODEL NUMBER DACD-2234 SERIAL NUMBER 2009-2408-A

Contractor Question 28: Please provide photo of JACE in main server room.

a) CE Response: No JACE inside main data center. JCI controls the security portion for that specific space.

Contractor Question 29: Please provide Sequence & One-line diagram of how the Fire Alarm integrates with the existing CRAC units.

a) CE Response: See as-built drawings provided, Attachment 3.

Contractor Question 30: How many CRAC units can be replaced at the same time?

a) CE Response: 3 out of the 6 run at all times. The other 3 are back-up units. The contractor will have to provide a plan which will eliminate any down time whatsoever.

Contractor Question 31: Is there a preference on manufacturer of CRAC units?

a) CE Response: The government will accept manufacturers that meet the salient characteristics provided.

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Contractor Question 32: Do we need to provide the CRAC Unit Sequencer, or can this be achieved through modification of the existing controls system?

a) CE Response: The current system is self-contained which unit should include integral controls capable of providing the required sequencing, rotation, led/lag operation, alarm notification and automatic standby/failover functions.

Contractor Question 33: If a new JAC is required, assume Cybersecurity specifications will be required?

a) CE Response: Not currently.

Contractor Question 34: Please clarify whether the Government anticipates any holiday shutdowns, reduced-access periods, restricted workdays, blackout dates, or other scheduling limitations that could affect contractor performance during the stated period of performance.

a) Government Response: All federally observed holidays are listed within the SOW, and no work shall be conducted during those times.

Contractor Question 35: If Government-directed holiday restrictions prevent the contractor from performing scheduled work, will those affected non-work periods be excluded from or otherwise accounted for in the required contract completion schedule, or will the awarded contractor be expected to maintain the original completion deadline?

a) The stated Period of Performance is inclusive of all federally observed holidays.

The contractor is expected to plan their work schedule accordingly around these non-work days to meet the required completion deadline. No schedule extensions will be granted for federally observed holidays listed in the SOW.

Contractor Question 36: Please also confirm whether normal work under the SOW may continue during holiday periods with prior Government coordination and approval.

a) Government Response: Work will not be conducted during holiday periods IAW the SOW.

Contractor Question 37: Can the period of performance be extended after award once the material/equipment lead times are confirmed due to current market conditions for the equipment for this project?

a) CE Response: YES but provide an estimated timeline in your proposal. Offerors must propose their overall project timeline as part of the Technical Factor submission.

Contractor Question 38: Please provide the site visit attendee sign in sheet.

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a) Government Response: Site Visit attendee sign in sheet will be uploaded into

SAM.gov

Contractor Question 39: Are there any phasing requirements? How many people will be in the building? Are there any temporary heating/cooling requirements?

a) CE Response: Yes, plan for potential temporary cooling requirements. Phasing will be required due to the nature and importance of the data center.

Contractor Question 40: Please confirm whether asbestos or lead is present on this project, and if so, provide the relevant documentation.

a) CE Response: No asbestos on site. Report will be included.

Contractor Question 41: Is this project tax exempt?

a) Government Response: The Government cannot provide tax advice or make state/local tax-exempt determinations on behalf of the contractor. Offerors are responsible for consulting with their own tax advisors and state/local tax authorities to determine what tax exemptions apply to purchases of materials and equipment for this project.

Contractor Question 42: When do you anticipate on site work starting?

a) CE Response: Upon award and coordination with the customer.

Contractor Question 43: Are third party inspections required?

a) CE Response: No

Contractor Question 44: Is permitting required?

a) CE Response: No

Contractor Question 45: Does the government have a preferred Direct Digital Control for HVAC company? If so, please provide the contact information.

a) CE Response: This will be a self-contained system.

Contractor Question 46: In executing this project, can one superintendent fulfill the supervision, safety, and QAQC roles?

a) CE Response: Please see response to question 26

Contractor Question 47: Are contractors required to issue a contract specific QA/QC Plan?

a) CE Response: YES - Please see paragraph 12.d of the SOW

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Contractor Question 48: Are contractors required to issue a contract specific Safety Plan?

a) CE Response: Yes - see paragraph 12.e of the SOW

Contractor Question 49: Can existing mechanical, electrical, controls, and architectural drawings be provided for all areas and components included in the project scope?

a) CE Response: Yes. See as-built drawings provided.

Contractor Question 50: Line item 0004 reads "Remove and Replace 115 TON Chillers."

Statement of Work paragraph 5 requires "same-in-kind" Daikin model AGZ130 units. Salient Characteristics paragraph 3.1 requires a minimum of 75 tons at 110 degrees F ambient, at 233.3 GPM with a design delta T of approximately 7.7 degrees F, which computes to about 75 tons. The nameplate on Chiller 1 reads McQuay model AGZ130DHVL-ER10, serial STNU09070018, R-41 0A, 250 lb total charge. Please state the capacity that governs technical acceptability, expressed in tons at 110 degrees F ambient and 44.0 degrees F leaving chilled water.

a) CE Response: Salient Characteristics para 3.1 updated to reflect existing 115 Tons

Contractor Question 51: Statement of Work paragraph 3.a requires continuous cooling to the server room with zero downtime, and states that any outage requires at least 60 days notice. Both chillers serve one common loop, and no line item covers temporary cooling. Please confirm whether the contractor is to furnish, install, operate, and remove temporary chilled water or spot cooling equipment, temporary power, and temporary piping to hold the data center during the chiller and CRAC changeovers, and state the line item under which that cost is to be carried. If temporary cooling is required, please provide the design load to be supported and the dry bulb temperature and relative humidity setpoints and tolerances to be maintained.

a) CE Response: The contractor must provide temporary cooling and/or provide a phasing plan for the changeover that will utilize existing or new equipment for CE review as part of proposal. Yes, the contractor is to furnish, install, operate, and remove temporary chilled water or spot cooling equipment, temporary power, and temporary piping. The line items cover all the work to be done on each unit. No additional line items will be added to reflect specific phases of the requirement.

Contractor Question 52: Both existing chillers are charged with R-41 0A. Salient Characteristics paragraph 3 requires approved low global warming potential refrigerant. Current production air-cooled scroll chillers in this range are built for R-32 or R-454B and do not share the footprint, operating weight, or connection locations of a 2009 AGZ130. Please confirm that the Government will accept a current production low global warming potential model of equal or greater capacity whose footprint and connections differ from the existing units, and confirm that pad modification or extension, isolation rails, and piping transitions to suit the new units are within the contractor's scope.

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a) CE Response: The government will accept differences in unit footprint, provided that the units do not exceed the pad dimensions while maintaining manufacturer specifications for clearances (air, electrical, etc.). The government has performed market research and confirmed that comparable chiller units exist on the market that can meet the dimensional requirements of the existing pad. Isolation rails and piping transitions are within the contractor scope.

Contractor Question 53: Salient Characteristics paragraph 3 describes the two chillers operating in a parallel N plus 1 redundant configuration. The CRAC schedule in paragraph 2.2 totals 1,837.6 MBH, about 153 tons, at 330 GPM. A single chiller at 75 tons, and equally at 115 or 130 tons, cannot carry that load, and 233.3 GPM per chiller is below the 330 GPM the six coils are scheduled for. Please state the design block load for the data center, the redundancy basis the new chillers are to be selected against, and whether the plant is primary-secondary or variable primary.

a) CE Response: The CRAC Schedule is also sized to operate in N+1 configuration, 45 tons + 40 tons + 25 tons = 105 Tons. Each chiller is sized at 115 tons Salient Characteristics will be updated to reflect existing equipment.

Contractor Question 54: The heading of Statement of Work paragraph 5 reads "Two Chillers with designated pumps," the body of paragraph 5 does not address pumps, and no line item covers them.

Salient Characteristics paragraph 5 refers to an expansion tank located on the suction side of the pumps. Please confirm whether the chilled water pumps are to be replaced under this contract, and if so state their quantity, capacity, and control arrangement.

a) CE Response: The Chiller Units should come with their integrated pumps per manufacturer specifications to match existing infrastructure and required GPM for the supplied replacement CRAC.

Contractor Question 55: Salient Characteristics paragraph 5 specifies an inline centrifugal air separator with automatic air vents, a diaphragm expansion tank rated for 150 psig, and a 40-mesh Y-strainer with blowdown valve at each evaporator inlet. The existing plant has an Armstrong Vortex air separator, year built 2009, in the outdoor yard. Please confirm whether these accessories are to be furnished new under this contract, or whether paragraph 5 describes existing equipment that remains in service.

a) CE Response: Yes, the mentioned accessories are to be furnished new under this contract.

Contractor Question 56: The exterior chilled water mains, air separator, and fittings inside the chiller enclosure have cracked and separated insulation with failed jacketing and visible moisture staining. Statement of Work paragraph 5.1 requires the contractor to insulate any new piping exposed to the elements and is silent on existing piping that remains. Please confirm whether repair

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or replacement of insulation and jacketing on existing exterior piping is in scope, and if so, state the extent, measured from the chillers.

a) CE Response: Replace exterior insulation as necessary for new and existing piping from chiller to the building penetration point.

Contractor Question 57: The chiller feeders originate at a courtyard panelboard whose breakers are marked ACCU 1 and ACCU 2, GE Spectra RMS type SGHA36AT0400, 600 VAC three pole, rating plug SRPG400A, with an interrupting rating of 35 kA at 480 V. Salient Characteristics paragraph 4 requires a minimum 65 kA short circuit current rating at the equipment. Please provide the available short circuit current at that panel board, confirm whether the existing feeders, breakers, and disconnects are to be reused or replaced, and confirm whether an updated short circuit, coordination, and arc flash study is required as part of this work.

a) CE Response: See as-built drawings provided.

Contractor Question 58: Government personnel at the 9 September 2026 site visit referred to PowerUp in connection with the power serving this equipment. Please identify that firm, state the systems and equipment it is responsible for at Building 2265, and confirm whether its work is held under a separate Government contract or is to be carried by the contractor under this solicitation.

If it is separate, please describe the interface expected between the two contractors, who holds the schedule between them, and which party is responsible for the final terminations at the new units.

Please also confirm whether the CRAC units and the chilled water pumps are fed from generator backed distribution, from an uninterruptible power supply, or from normal building power, identify the panels, automatic transfer switches, and standby generator serving them, and state whether the replacement work requires modification or re-termination at the standby power distribution or the transfer switches. Please state whether an outage on the standby power system carries the same 60 day notice requirement that Statement of Work paragraph 3.a places on cooling outages, and whether load bank testing or re-commissioning of the standby system is required after the new equipment is connected.

a) CE Response: Please review gov’t supplied drawings for electrical details and relevant panels. The CRAC units are supported by an UPS system and a backup generator.

Contractor Question 59: The chillers sit on a grade pad inside a chain link enclosure that is closed on all sides and across the top, in a courtyard bounded by a multi-story building, with the building soffit directly over the units and a mature live oak canopy over the enclosure. Statement of Work paragraph 5.f calls for the units to be rigged out with a crane. Please confirm that the enclosure top and framing may be removed and rebuilt, state whether trimming or removal of the overhanging live oak will be permitted and who obtains base natural resources approval and identify the

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approved crane setup location and load path. If a vertical lift over the enclosure is not permitted, please confirm that removal and installation in sections is acceptable.

a) CE Response: Work task has been coordinated with Base Natural Resources, and the live oak can be trimmed or removed to accommodate a crane lift plan. If tree trimming/removal should occur between September 1 to March 15th. Typically, we ask that a replacement tree be planted in an area outside work site. 4” caliper trees are the minimum.

Contractor Question 60: Statement of Work paragraph 5.e makes the contractor responsible for removing the chain link fence surrounding the chillers and rebuilding it once the new chillers are in place, and no line item covers that work. Please confirm that the enclosure demolition and rebuild is to be carried in the price of line item 0004, and provide the specification the rebuilt enclosure is to meet, including height, fabric gauge, framing schedule, the top covering, gate quantity and size, and whether new material is required throughout or the existing framing and fabric may be reused.

a) CE Response: The cost for the removal and rebuilding of the chiller enclosure is considered incidental to the work under CLIN 0004 and must be included in the offeror's price for that line item. The contractor may reuse existing fence fabric, framing, and hardware provided they are not damaged during demolition and reinstallation activities. The contractor is responsible for storing all components securely on-site. The rebuilt enclosure shall be restored to a condition equal to or better than the condition that existed prior to the start of work. Any components damaged by the contractor's operations shall be replaced in-kind at the contractor's expense. The final rebuilt enclosure must meet the same height, layout, and operational standards as the original.c

Contractor Question 61: Line items 0001 through 0003 divide the six units into two at 45 ton, two at 40 ton, and two at 25 ton, and Statement of Work paragraph 4.a names models DACD-45, DACD- 40, and DACD-22. Salient Characteristics paragraph 2.2 shows CRAC-01 through CRAC-04 all at 352.0 MBH total and 75.0 GPM, with airflows of 17,500, 19,500, 16,000, and 17,500 CFM, and CRAC-05 and CRAC-06 at 214.8 MBH and 9,000 CFM. Please identify which unit tags belong to each line item, and state whether the tonnages in the line items are nominal model designations or required capacities.

a) CE Response: See attach As-builts with CRAC units schedule which provides designated unit tags to corresponding CRAC Units.

Contractor Question 62: Salient Characteristics paragraph 2.2 lists CRAC-05 and CRAC- 06 at

214.8 MBH total with 90.0 MBH sensible, a sensible heat ratio of 0.42, against 0.88 for CRAC- 01 through CRAC- 04. A ratio of 0.42 is not consistent with a data center cooling load. Please

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confirm the minimum total and sensible capacities required for CRAC-05 and CRAC-06 at the stated entering conditions.

a) CE Response: See attach As-builts with CRAC units’ schedule.

Contractor Question 63: Statement of Work paragraph 4.o requires testing and verification of all operational modes including heating, humidification, and dehumidification, while the Salient Characteristics do not list reheat or humidifier requirements. Please confirm whether electric reheat and humidifiers are required for the new units, and if so, state the capacities required and the water source and treatment available for the humidifiers.

a) CE Response: Humidifier requirement will be required. Salient Characteristics have been updated.

Contractor Question 64: Salient Characteristics paragraph 2.1 states a motor capacity of up to

15.00 HP and a design external static pressure of not less than 0.75 in. w.g., against a scheduled 19,500 CFM on CRAC-02. Please confirm whether 15.00 HP is a ceiling the offered units may not exceed or a description of the existing units and state the external static pressure the new units are to be selected against.

a) CE Response: Will provide drawings with CRAC units specs.

Contractor Question 65: Salient Characteristics paragraph 7 requires the replacement units to fit within the existing floor grid, described as 24 in. by 24 in. panels on an 18 in. raised floor. Please confirm that modification of floor panels, cutouts, pedestals, and supplemental framing to suit the new units is within scope and confirm that a unit whose footprint differs from the existing unit is acceptable where the scheduled airflow and capacity are met.

a) CE Response: The government will provide drawings of existing floor panels.

Contractor Question 66: Statement of Work paragraphs 4.k, 4.q, and SJ require connection of control wiring to the building automation and control network, and Salient Characteristics paragraph 6 lists the points that must be delivered to the building management system. Please identify the building management system manufacturer and front end in use at Building 2265, identify the contractor presently maintaining the chiller and CRAC controls, and state whether integration, point mapping, and front-end graphics are contractor scope under this contract or will be performed by the Government or its controls contractor.

a) CE Response: The current system is only located locally on site at the data center.

Contractor will provide a self-contained system.

Contractor Question 67: Deliverable 12.f requires factory acceptance testing and field commissioning reports verified by factory authorized technicians. Please confirm whether

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Government witnessed testing at the factory is required, or whether the manufacturer's factory run test report furnished with the equipment satisfies this deliverable.

a) CE Response: The government will accept the manufacturer’s factory run test report furnished with the equipment.

Contractor Question 68: DFARS 252.211-7003 is incorporated in the solicitation. Please confirm whether item unique identification marking and registry submission are required for the installed CRAC units and chillers and identify the marking method that is acceptable on factory finished equipment.

a) Government Response: Confirmed. DFARS 252.211-7003 is marked N/A in the solicitation schedule; therefore, DoD Item Unique Identification (IUID) 2D Data Matrix markings and registration in the DoD IUID Registry are not required for the chillers and CRAC units. However, this does not exempt or waive standard commercial markings. The contractor must provide all standard factory-applied manufacturer nameplates, electrical/safety certifications (UL/ETL, AHRI), ASME data plates, refrigerant classifications, and the permanent engraved equipment tags (e.g., CH-1, CRAC-1 through CRAC-6) required by the SOW.

Contractor Question 69: Statement of Work paragraph 14 estimates completion within 60 calendar days. The delivery schedule in the solicitation sets a delivery date of 18 January 2027 for line items 0001 through 0004, and page 2 states that funds are not presently available. Factory lead times for chilled water CRAC units and packaged air-cooled chillers currently run well past 60 days, and Technical Factor 2 requires a schedule that accounts for current supply chain lead times. Please state which of the two controls and confirm whether the delivery date will be adjusted to run from the date of award.

a) CE Response: The rigid 60-day Period of Performance has been removed from SOW paragraph 14. As outlined in Technical Factor [2] Project Schedule; offerors are required to propose their own realistic, phased project schedule that accounts for current manufacturer lead times and on-site installation.

The schedule proposed by the successful offeror—and accepted by the Government—will be incorporated into the final contract award as the binding, firm-fixed Period of Performance.

Contractor Question 70: Statement of Work paragraph 3.a requires at least 60 days’ notice to the Government before any outage, and paragraph 3.b requires at least 45 days for contractor personnel to be cleared for the interior work. Together these exceed the 60 calendar day performance period in paragraph 14. Please confirm that the outage notices and personnel clearance periods run before the performance period begins and are not charged against the contractor's performance time.

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a) CE Response: As outlined in Technical Factor [2] Project Schedule, factor all these timelines into your proposed project schedule. The 60-day period of performance has been removed from SOW.

Contractor Question 71: Statement of Work paragraph 3.a requires at least 60 days notice to the Government before any outage, and paragraph 3.b requires at least 45 days for contractor personnel to be cleared for the interior work. Together these exceed the 60 calendar day performance period in paragraph 14. Please confirm that the outage notice and personnel clearance periods run before the performance period begins and are not charged against the contractor's performance time.

a) CE Response: See previous response. #70

Contractor Question 72: Statement of Work paragraph 3.b requires a list of personnel and at least 45 days for interior clearance, and states that escorts and additional security checks may be required. Please confirm whether tradesmen will follow the same visitor center sign-in process used for the site walk or standard base credentialing and state the lead time that process requires.

Please also identify the specific investigation or clearance required for interior access, confirm whether it applies to subcontractor and rigging personnel as well as to the prime, state whether the Government furnishes escorts during all working hours and how many contractor personnel each escort may cover, and state the restrictions on cellular telephones, cameras, laptops, and other personal electronic devices inside the server room.

a) CE Response: All personnel including tradesmen will follow the same visitor sign-in process. The specific investigation or clearance for INTERIOR access pertains to all individuals that will need to enter the SIPR and NIPR rooms. Escorts will be provided during all working hours and can cover as long as contractors are within escorts line of sight.

Contractor Question 73: The Statement of Work and the Salient Characteristics both refer to government as-built schedules as the performance baseline, and no drawings or schedules were issued with the solicitation. Please furnish the as-built drawings, the CRAC equipment schedule, the chilled water riser and flow diagram, and photographs or transcriptions of the equipment nameplates giving the manufacturer, model, and serial number of each of the six existing units.

Please also confirm whether an escorted follow-on visit to the data center whitespace can be arranged before quotes are due, so that the corridor and door dimensions along the rigging path, the floor loading, and the unit connection points can be verified.

a) CE Response: Drawings will be provided to the contracting officer. Another site visit will be determined by the Contracting officer if needed.

Contractor Question 74: Deliverable 12.b requires a rigging, lifting, and logistics plan showing crane size, lifting weights, street closure and staging requirements, and transit routes. Please

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identify the office that approves street closure and staging at Building 2265, the lead time that approval requires, and any restrictions on working hours for crane operations in this courtyard.

a) CE Response: CE project manager will coordinate street closure and provide a staging for contractor. Contractors will have to provide their lift plan 2 weeks in advance to have proper coordination with the facility. Will include this in the SOW.

Contractor Question 75: Statement of Work paragraph 4 requires same-in-kind Data Aire units and paragraph 5 requires same-in-kind Daikin AGZ130 units, while Salient Characteristics paragraph

2.1 permits a modern equivalent, and no brand name or equal provision is included in the solicitation. Statement of Work paragraph 1 also states that one driver for the project is the imminent closure of the original equipment manufacturer and the resulting loss of technical support and spare parts. Please confirm whether the named manufacturers are mandatory, or whether an equal product that meets the Salient Characteristics will be evaluated as technically acceptable.

a) CE Response: Any equal product that meets the salient characteristics will be evaluated as technically acceptable.

Contractor Question 76: The solicitation pairs NAICS 238220, a specialty trade construction code, with supply type line items priced each under Product Service Code 4120, FOB destination delivery dates, DFARS 252.211-7003, and FAR 52.219-33, Nonmanufacturer Rule. Please confirm

(a) whether 52.219-33 applies to line items 0001 through 0004, and if it does, whether SBA has granted a class or individual waiver, since neither manufacturer named in the Statement of Work is a small business manufacturer; (b) which paragraph of 52.219-14 governs the limitation on subcontracting for this award; and (c) whether Construction Wage Rate Requirements apply to the on-site installation labor, and if they do, please furnish the applicable wage determination.

a) Government’s Response: RFO 52.219-33 is non-applicable because the selected NAICS code does not represent a manufacturer NAICS, this is a supply-class code.

Furthermore, Construction Wage Rate Requirements do not apply as this acquisition is classified as a supply contract with only incidental services (no Davis- Bacon). RFO 52.219-14 remains applicable, specifically governed by paragraph (c)(1).

Contractor Question 77: Page 2 of the solicitation states that advance payments are not authorized and that invoices may be submitted only after successful delivery and installation of all items and formal Government acceptance. The equipment procurement will precede installation by several months. Please confirm whether the Government will accept invoicing by completed line item or will consider progress payments or commercial financing for the equipment portion of the work.

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a) Government’s Response: Government will not accept progress payments and payments will only be made after full completion of work and acceptance by Government as stated in solicitation.

Contractor Question 78: Technical Factor 1 requires original manufacturer documentation demonstrating point by point compliance with each salient characteristic. Several of the stated characteristics are not published in manufacturer catalog literature, among them MERV 8 filtration at 70 percent dust spot efficiency, a 0.23 in. w.g. initial filter pressure drop at 500 FPM, an integrated part load value of 15.3 EER, and an alarm history of the last 20 events. Please confirm that manufacturer selection program output and a manufacturer signed compliance matrix will be accepted as original manufacturer documentation where a catalog page does not state the value.

a) CE Response: es. The Government confirms that official manufacturer selection program outputs (software submittal reports) and signed letters of compliance from the manufacturer's engineering department are acceptable forms of original manufacturer documentation where specific performance values are not published in standard commercial catalogs. All submitted documentation must be clearly traceable to the specific, proposed equipment model numbers and must reflect the exact design and operational conditions specified in the Salient Characteristics.

Contractor Question 79: Statement of Work paragraph 13 requires a one year material and labor warranty. Deliverable 12j requires a minimum one year parts and labor warranty and five year compressor coverage on all new equipment. The replacement CRAC units are chilled water units and have no compressors. Please confirm that the five year compressor coverage applies to the chillers only and confirm that the warranty period begins at Government acceptance of the completed work rather than at delivery.

a) CE Response: The 5-year compressor coverage applies to the chillers, the CRAC units should also have a manufacture warranty included will correct SOW.

Contractor Question 80: The delivery schedule lists the ship to address as F2M3CB, 502 CES CERF, 1675 Gott St, JBSA Lackland, TX 78236, while the cover page of the Request for Quote and Statement of Work paragraph 7 give the place of delivery and performance as Building 2265, 2406 Gun Shed Rd, JBSA Fort Sam Houston. Please confirm that the equipment is to be delivered directly to Building 2265.

a) Government Response: Place of delivery and performance will be at Building 2265, 2406 Gun Shed Rd, JBSA Fort Sam Houston, TX, and that is where the equipment will be delivered and installed. However, for billing purposes, the F2M3CB would be used.

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Contractor Question 81: Please confirm whether the Government will post the sign-in roster from the 9 September 2026 site visit with the answers to these questions.

a) Government Response: Confirmed.

Contractor Question 82: Several of the questions above go to equipment selection and to scope that cannot be priced as the documents now read, and the quote due date is 18 September 2026.

Please confirm whether the Government will extend the quote due date if the answers change the scope or the required equipment capacities.

a) Government’s Response: Yes, the due date for quote submissions has been extended to Monday, 21 September 2026 at 11:00 AM CDT.