RFI LOG.xlsx

Sheet1

6 The SOW states normal hours of operation are 7:00 AM to 4:00 PM, Monday through Friday, and that utility shutdowns require 72-hour (minor) to two-week (major) advance coordination. Because Building 1 remains a fully operating hospital, please provide the allowable working hours for each type of occupied area affected by the work — for example, Clinics, ICU, Kitchen, and the 7th Floor Administration area. A floor-by-floor breakdown of permitted working hours and access restrictions would be very helpful for planning, phasing, and pricing. Will weekend work be required on a regular basis in any of these areas? Please confirm so that after-hours and weekend labor premiums can be appropriately reflected in the base bid and the schedule. In our opinion, many areas will have to be vacated in phases during the work. A significant portion of the work is located in the hallways, and for patient safety and other practical considerations we believe that access to the adjacent patient rooms, clinics, and other occupied spaces will be impractical and unsafe while construction operations are underway in those corridors. Please confirm the VA’s expectations for temporary relocation / decanting of these spaces and how phasing is to be coordinated with ongoing hospital operations. We anticipate that the Laboratory and surrounding areas will be highly impacted by the work. What move-out and phasing can be expected for the Lab — for example, will the Lab be relocated or temporarily or partially taken out of service, and what sequencing, duration, and interim life-safety measures does the VA anticipate for that area? For the purposes of the price proposal, work hours will be Monday through Friday 7:00 AM to 4:00 AM, or other established daytime 40 hour week. Any after-hours/weekend work will be addressed as the need arises. The facility will address this matter at each phase.

7 See Question Attachment RFI 7 Typically, construction is Commercial of The Shelf (COTS) parts, and that is an exception to the Buy American Act. Unless you have an item that is specifically manufactured for this project.

8 Drawings MP-901 (Mechanical Piping) and M-701 (Mechanical) show the chilled water piping layout, but the pipe size designations (line sizes/diameters) are not entered on the drawings. Pipe sizes are required to properly size all valves, complete material take-offs, confirm equipment connection sizes, and verify pressure drop and pump sizing, and they directly affect procurement quantities and price. Please enter/provide the pipe sizes on Drawings MP-901 and M-701, specifically:

(a) the line size for each segment of the chilled water supply and return mains shown on each drawing;

(b) the branch and runout sizes serving each equipment connection; and

(c) any size transitions/reducers and tie-in sizes to existing piping that are not currently called out.

Please issue revised/marked-up MP-901 and M-701 with the pipe sizes shown, or a schedule keyed to each drawing. Absent these sizes, valves cannot be properly sized and the hydronic piping scope cannot be accurately quantified or priced. Riser pipe dimensions have been added to sheet MP901. Lateral pipe dimensions are found on the individual floors. See Updates Attached - Dav Energy Solutions

10 Drawings M-703 (Pump Control Point Schedule) and M-705 (Seasonal Change Over Valve Control Point Schedule) are essentially blank — the schedule headings are shown, but the control points and associated data are not filled in. Without this information the HVAC controls/DDC scope cannot be quantified or priced (the point count directly drives controller, input/output, wiring, and programming costs) and the control sequences cannot be implemented. This is a design-bid-build project; the completed control point schedules are required from the Architect/Engineer of Record in order to bid. Please provide the completed M-703 Pump Control Point Schedule and M-705 Seasonal Change Over Valve Control Point Schedule, including for each point: point name/description; point type (AI, AO, BI, BO); signal type/range; whether the point is hardwired or obtained via network/integration; setpoints and alarm limits; the associated equipment or device; and any interlocks. Please also provide the associated sequences of operation for the pumps and the seasonal changeover valves so the points list can be reconciled with the intended control sequence. Absent the completed control point schedules, bidders cannot accurately price the building automation/DDC controls for the pumps and seasonal changeover valves on a fixed-price basis. See updated sheets M-703 and M-705 in Bulletin 1 issued July 1, 2026

11 The Statement of Work (Work Required – MEP / Mechanical) calls for “two or more new 10-HP” and “two or more new 25-HP” chilled water pumps. However, the Pump Schedule on Drawing M-601 lists P-KCOIL at 2,020 GPM / 60 HP (two pumps, including N+1 standby) and P-ZONE at 730 GPM / 20 HP (two pumps, including N+1 standby), all variable-speed, 460V/3-phase, with NEMA premium-efficiency motors. Please confirm the M-601 Pump Schedule governs for pricing, including the motor horsepower, the total pump quantity (four pumps plus standby), and the VFD requirement. See updated pump schedules on sheet M-601 in Bulletin 1, issued July 1, 2026. Contract documents (drawings and specifications) govern.

12 See Question Attachment RFI 12 Update sheets MP101A-1 and MP101B-1 in Bulletin 1 issued July 1, 2025 show a diagramatic layout for the required temporary piping. All risers will be required to be maintained operational until the system is fully transitioned to the new risers. Updated schedule on M-601 details the requirements for the two (2) temporary pumps.