Amendment 0005 RFI Responses 150 - 336 2025 03 18.pdf

RFI for AFRH Solicitation #47PM0325R0002

Line No. RFI Government's Response

Should the CPM schedule include only Area A or Area A and Area B? Schedule shall include both Base Bid and option areas.

On the bid form there is a note for “instructions” that refers to line numbers in the form.

The line numbers are not shown in the form, so it is not clear what the intent is. Please clarify. Amended bid form was provided in Amendment #2.

Please confirm that the Waste Management Plan is to be created by the successful contractor post award and is not part of the Technical Proposal to be submitted with the bid.

The waste managment plan does not need to be submitted with the technical proposal.

Demolition On sheet AD110 the diagonal hatch pattern is not indicated in the legend. Please clarify if existing ceilings in this area are to remain and how they are constructed. The diagonal hatch is for ceilings out of the scope of this project.

On sheet CS103 at the main entrance to the building there is 12” HDPE piping and inlets indicated. Please clarify how the new work is to connect to the existing and what the elevations are. The lower right corner of the sheet contains a structure schedule and inverts.

On sheet CS103 along the east side of the building at four locations please clarify how the new 4” sewers should be connected to existing sewers and what the elevations are.

It appears that the inverts out of the building was set 4’ below grade of asphalt driveway. The inverts of the existing MH’s are 289.66 and 289.01 which is 6’ to 7’ of fall from the proposed invert out of the new sewer.

On sheet CS103 there is a “proposed 3” gas service” indicated on the south side.

Please clarify the extent and nature of this work.

Contractor shall install new 3" gas service from existing vault, connect to all new generators.

Civil On sheet CS103 at the main entrance to the building there is 12” HDPE piping and inlets indicated. Please clarify how the new work is to connect to the existing and what the elevations are. Refer to Question 154.

Civil On sheet CS103 along the east side of the building at four locations please clarify how the new 4” sewers should be connected to existing sewers and what the elevations are. Refer to Question 155.

Civil On sheet CS103 there is a “proposed 3” gas service” indicated on the south side.

Please clarify the extent and nature of this work. Refer to Question 156.

Architectural The scope of keynotes LS-1 and ST-2 is general, citing the need to clean and replace damaged stone panels. Note that LS-1 is not deployed in elevation details 8 & 9 on A220, nor is ST-2 deployed on elevation details 1/A211, or in elevation details 1, 2, 3, 4, 5, 8, and 9 on sheet A220. Please confirm that stone cleaning and repair is not required on the elevation details listed here.

Per LS-1, all limestone panels to be cleaned. Per ST-2 all granite panels to be cleaned. LS-1 and ST-2 also cover general minor repair work as indicated in the notes. The notes apply to all existing limestone and granite panels which are to remain or be reused in the project.

Architectural The subtle shading used on sheet A220 makes it difficult to differentiate between stone materials. Please confirm that Keynote LS-3 is intended to apply to the 9 limestone panels in the darkly shaded areas on details 3/A220 and 4/A220.

As indicated in the legend, the darker shading indicates granite panels. The majority of the panels on the building are limestone, with the existing granite panels limited to the base of the building (to the level of the window sills on the lowest level).

Architectural On Pg AI601, in the finish legend, the note at the end of P-Lam-7 says they want that Wilsonart P-Lam for all cabinet interiors? Can you confirm that they want that (and why) vs the cheaper and more common melamine interiors?

Exposed surfaces of all closets must be plastic laminate for durability as outlined in specification 064116. Interior surfaces of cabinets may be melamine per industry standard and as noted in specification 064116. Provide in color to match PLAM-7

Architectural Can GSA provide historic drawings of the exterior cladding installation and/or means of attachment? No such drawings are available at this time.

Architectural To expand upon Specification 024119 part 3.4.D, would it be permissible (as a cost-saving measure) to store the salvaged stone cladding in a well-defined area on site using warehouse racking? Refer to Question #23 issued with Amendment #3, Structural For the purposes of the bid, what should be assumed for the length of the helical pile foundation system and how many helical piles should be assumed?

Per geotech report, helical pier length of 35 ft is required to achieve required compression capacity.

Helical pier counts are provided on foundation plans and sheet S602.

Structural Please provide the geotechnical report that is referenced on S001 H.1 & L.2 Geotech report issued with Amendment #3.

Structural Are the piles to be treated as a delegated design by the specialty pile contractor? Yes. Per Spec Section 316613 - Helical Piers, the piles are a delegated design.

Structural Are the loads noted on the drawings copied from the Geotech report or calculated based on building loads?

Loads shown in Note L.1 on sheet S001 are calculated based on building loads, and validated by the Geotech report.

Structural For design of the piles, should we use the column loads from sheet S601? No. Helical piers must provide the capacity stated in Note L.1 on sheet S001 Structural S100A: On S100A the pile caps at column line intersections 15.6-C and 17.6-C are called out in plan view as pile cap type PC-8A. These pile caps in plan view scale to match the size of pile cap type PC-6A. Please confirm the pile caps at these two locations should be noted as type PC-6A. Yes, provide PC-6A caps at columns 15.6-C and 17.6-C Structural S100A: On S100A the new perimeter foundation wall rests on top of pile caps and grade beam GB-1. At the North-West corner of the perimeter of new foundation walls there is no call-out for GB-1 between pile caps. This condition starts at F.8-6.2 and continues west/counterclockwise until the wall terminates at G.66-6.66. Please confirm that grade beam GB-1 should be installed between these pile caps to support the foundation walls.

Between caps 8C & 7A, the clear space is very short. Between caps 7A & 2A, the retained height of the wall reduces, and with it the lateral load. In both cases, the wall, tied to caps per 1/S511, spans between caps without the need for grade beams.

Structural S100A: The existing pavement in the North alley between column lines 5.35-6.14 & AN- HN.45 will need to be partially demolished and replaced to install the new pile caps and foundation walls. Structural details imply that this alley pavement is concrete pavement, however the civil drawings do not provide information regarding the existing construction.

a. Please confirm the pavement in this alley is concrete pavement.

b. If this pavement is concrete pavement, please provide a civil detail for the replacement of this pavement.

c. Please provide existing elevations of this pavement. The civil drawings do not seem to provide existing elevations in the alleys, which is required to determine the brick-seat height of the foundation walls.

A. Saw cut and remove existing asphalt paving as necessary to install structural elements.

B. Repave with asphalt in line and grade providing positive drainage away from the building face and towards the entrance to the alley. Utilize heavy duty asphalt paving. Maintain the existing drainage pattern.

C. Elevations of ramp range from 299.95 to 301.10.

Structural S/511 & A/502: Detail 4/S511 shows the slab edge detail at exterior perimeter walls, noting the edge of slab abuts the new perimeter foundation wall with expansion joint.

Detail 6/A502 shows the same situation, however the slab directly abuts the perimeter foundation wall with bentonite waterstop in lieu of expansion joint.

Please confirm which detail should be followed for exterior wall conditions.

Provide isolation joint material between the interior slabs-on-ground and the perimeter foundations walls, in accordance with structural detail 4/S511.

Structural A707: Detail 1/A707 shows mortar beds and topping slabs at new showers. The topping slabs are implied to extend out past the extents of the bathrooms. The demolition plans, such as AD101A.1, note demolition of existing topping slabs for the new mortar beds with note SD3. For newly constructed floors at levels 1, 2, & 3 there are seemingly no notes regarding new topping slabs on top of the SOMD.

a. Please confirm there are no new topping slabs on top of the SOMD.

b. If there are new topping slabs on top of the SOMD, please define the extents, build-up, reinforcement, etc.

A. No topping slab on new SOMD (slab on metal deck).

B. We will provide an additional new detail for showers over new SOMD, detail 1/A707 is for existing slab conditions.

Plumbing On sheet P102A there are notes and circles indicating existing rain leaders (RL) but not all of the notes point to circles, and some of the circles seem to misplaced or missing altogether. Please clarify these locations.

There is a (RL) rain leader at each location labeled. Only graphically, a few of the risers are not showing properly

No additional site visits will be scheduled.

The owner does not know to what space this question refers. Refer to Spec.

Section 015000 for contractor and owner office space requirements.

There will be 300 enlarged independent resident rooms and 52 assisted living rooms, for a total of 352.

Provide frameless style for all staff areas, nurse stations, community rooms and NON-resident room areas. Provide frameless, shaker style doors and drawers for all resident room cabinetry.

Please consider scheduling an additional site visit. We would only need access to the existing and new chiller rooms to inspect existing piping, equipment, and access.

A small office space was identified for the contractor office during the site visit. Please provide the size of this space and clarify if additional space will be available to prevent the need for office trailers.

Section 1.1-B indicates there are a total of 352 Residential spaces; however;

based on the Resident Room Type Schedule on the Overall Plans, there are a total of 354 Units. Please confirm the total of Residential Units.

Specification Section 064116 Plastic-Laminate-Clad Architectural Cabinets sub-section 2.1 C identifies a "Frameless" style of construction. This section appears to be written for the Common Area cabinets/casework. Please confirm that the Common Area cabinets/casework should be provided as a Frameless Style.

Section 2.1.B.3 states vapor barrier to be 15 mils minimum. Structural Note Q.1 states vapor barrier to be 10 mils minimum. Please advise which document governs.

Spec. section 075419 – please specify the vegetative cover for this roof system.

Specification section 075419, para. 2.1 A spells out G476-20 membrane. Sika doesn’t make this membrane anymore. Please confirm that G410 80 mil PVC is acceptable.

Spec. section 075552 is a protected membrane roofing system (in the title).

There isn’t a ballast specified – stone, pavers, or green roof. Please revise the spec and show on the drawings.

Roof Assembles R4 and R6 on drawing A703 are conventional modified bitumen roof systems. There isn’t a spec for this system (075552 is a protected membrane system – opposite of conventional). The insulation for this conventional system should be polyisocyanurate (not Extruded Polystyrene).

Also – a protection board cannot be used. Please provide specifications for this system.

The specifications indicates interior solid-core doors are maple. On the finish legend, WD-1 is listed as prefinished stained wood doors in Red Oak. On the Door Schedule wood doors are labeled as WD only. Please confirm the following:

1. Should all the wood doors on the door schedule be WD-1

2. Are all wood doors Maple per the specifications or Red Oak per the Finish Schedule Section 084113-2.1.F indicates aluminum storefronts must have windborne-debris impact resistance (large missile). The glass makeups defined in Section 088000-3.8 do not meet this requirement. Please confirm impact resistance per 084113-2.1.F is not required or provide updated glass makeups.

Section 084113-2.1.O indicates aluminum storefronts shall have a minimum STC 35 rating. The specified basis of design storefront system combined with the specified glass makeups meet STC 32 rating. Please confirm this is acceptable or provide updated glass makeups.

Section 084413-2.1.L indicates aluminum curtainwalls shall have a minimum STC 34 rating. The specified basis of design curtainwall system combined with the specified glass makeups meet STC 31 rating. Please confirm this is acceptable or provide updated glass makeups.

Section 084113-2.4.A.3 states storefront glazing plan is "as indicated". Details on A312 graphically depict a front-glazed system. Details on A611 depict center-glazed storefronts. Please confirm all storefront types are 4 1/2" center-glazed storefronts.

Section 084113-1.10.A.B calls for a 20-year finish warranty for aluminum storefronts. Section 084113-2.4.A.4 indicates the storefront finish is anodized.

20-year warranties are not available on anodized finishes. Please confirm a 10-year finish warranty is acceptable.

Provide 15 mil per specifications.

Refer to Spec. Section 329700

Please provide membrane that is suitable for waterproofing/ballast application that complies with spec. requirements.

Contractor shall provide specified cap sheet.

Conventional modified bitumen roof system specification will be provided.

Refer to documents issued with Amendment #3.

Refer to documents issued with Amendment #3.

Refer to documents issued with Amendment #3.

Refer to documents issued with Amendment #3.

Storefront on A312 to be front-glazed as shown. Storefront for openings shown on details of A611 to be center glazed as shown.

Ten year warranty is acceptable.

NCPC Tree Preservation and Replacement Policy

Confirm the following doors are to receive auto openers, the corresponding hardware set does NOT include an auto opener, but the comments on A601 and A602 would indicate it is required. Doors: 1028, 1100, 1413, 1019, 1019A, hardware set 9.0 and 25.

Please confirm that the hub listed on hardware sets 8, 9, and 17 should be in division 28.

Section 088000-2.5.A calls for glass manufactured by Vitro. Section 088000-3.8 calls for glass manufactured by Viracon. Please advise which document governs. If Viracon, provide required Viracon product number.

The glass makeup specified in Section 088000-2.5.E does not meet the performance values listed in Section 088000-2.5.F. In order to achieve those values the LOW-E coating would need to be switched to Solarban 90 or Guardian’s coating SNX51/23. Please advise if whether Section -2.5.E or Section -2.5.F should be followed.

The glass makeup specified in Section 088000-2.5.G does not meet the performance values listed in Section 088000-2.5.H. In order to achieve those values the LOW-E coating would need to be switched to Solarban 60. Please advise if whether Section -2.5.G or Section -2.5.H should be followed.

Section 088125-2.3 calls for OPACI-COAT-300 at spandrel glass. It is our understanding from glass manufacturers that this product is no longer commonly used. Please confirm spandrel glass with ceramic frit is acceptable.

Please provide a Specification Section for the Residential Kitchenettes and Vanities. Confirm that Specification Section 064116 does not apply to the resident units.

The existing building automation system throughout the building Air Handlers and central plant utilizes a Siemens BAS. Please confirm if you require the new floor level HVAC systems to tie into the existing Siemens factory branch BAS controllers and Design CC front-end workstation network.

Do you require the residential fan coil units to tie into the building automation system via Bacnet or just the common area fan coil units?

Reference section 281500.10 - 1.7E. Paragraph 1.7E requires an elevator contractor to perform integrations with the elevator controls. This project does not appear to require any integration with the elevators or require device installation in the cabs. Please confirm this is correct or clarify the necessary integration. Please provide the contact of the elevator maintenance company if required.

The Civil drawings do not indicate which trees are to be protected during construction. Please provide a tree preservation plan.

Please confirm if milling, overlay and restriping of Eisenhower Drive and Sheridan Road is required.

The doors indicated required auto opener as indicated on the door schedule on A601. Note 1019 and 1019A required panic hardware as well.

See "E" series drawings and Spec. Section 281300.

Refer to documents issued with Amendment #3.

Refer to documents issued with Amendment #3.

Refer to documents issued with Amendment #3.

Section 088125 deleted per Amendment #3.

A Division 12 specification section will be issued for resident rooms.

The AHUs and Central plant will tie into the Siemens BAS.

Provide local control for residential FCUs only. Public FCUs should be on BAS.

It appears the question is referring to Spec Section 281500.30, para. 1.7E.

Provide credential readers in existing cabs as specified.

All trees adjacent to construction efforts not indicated to be removed shall be protected. Refer also to the issued as part of the original solicitation.

It was not the intention nor was it reflected on the plans to mill and overlay Eisenhower Drive and Sheridan Road. However, if through the course of the work, the roads are significantly damaged by construction traffic, the contractor will be expected to repair and/or replace damaged pavement sections to the satisfaction of AFRH.

Drawing CS104 shows a Northern & Southern Compactor pad with trash containers and compactors. Please confirm these items will be provided by the client in the future?

On the Resident Room Types Schedule - Floors 2-7, Room Numbers X006, X010 are shown as Independent Living Unit C1. On the Overall Typical Floor Plan (Floors 3-7), this Unit is shown as Unit C2 3010 and not Unit C1. Please confirm that the overall typical floor plans govern for Level 3-7.

The stone panels on the backside of the central elevator bank are not scheduled to be removed. Is the intent for the D2 furring partition to be installed over the existing panels?

The interior face at existing masonry on the floor plans calls for partition type D3, which is 3 5/8" framing but then the wall sections (ex. 2/A310) calls for exterior assembly type W2, which requires 2 1/2" framing. Please confirm the metal stud framing size required.

Please provide the manufacturer and/or product numbers for the following:

A5 - Semi-recessed waste receptacle A6 - Toilet tissue dispenser A7 - Toilet grab bars (18",36"42") A8 - Sanitary napkin disposal A1 - Soap dispenser Item A14 is called out in the corner of the shower, but the specified product number is not for a corner wall mounted grab bar with shelf. Please confirm the product number for the corner of the shower should read NIV_041K

On the Accessory Schedule on A412, A4 is indicated as a coat hook. On 5/A419 and 4/A426, A4 is shown as a mirror and not a coat hook. Please advise Reference toilet Accessories Schedule on A412, please note A5 and A15 are not listed as contractor furnish(CF) nor contractor installed(CI). Please confirm both accessories shall be CF/CI.

Reference toilet Accessories Schedule on A412 which specifies accessories A1-A20. Also see Resident Rooms General Note #1 on A413 which directs you to A412 Accessory Schedule and indicates to "provide accessories as illustrated, as not all accessories are tagged" in Unit Plan A413-A426. From the information provided in the contract documents, it is difficult to discern which A1-A20 items shall be carried in the Resident Units. For example is A3-Toilet Paper Dispenser, which is not illustrated in A412-A426. Please provide an Accessories Schedule for the following unit designations: Accessible / Inaccessible / Assisted Living / Independent Living and any possible combinations. Or please provide specific unit schedules for each A413-A426 page, similar to A409 and A426.

Detail 2/A501 – please confirm that 26 ga. Stainless steel is acceptable for the gutter –so that the seams can be soldered.

The following hardware sets indicate a "hub" is to be installed: 5.0, 6.1, 3.0, 10,

11. Doors: 1010, 1111A , 1118, 1314, 1315, 1411A, 3016, 3019, 3020, X016 (4-7th), X019 (4-7th), X020(4-7th) These locksets are not associated with wireless systems. Confirm this is the correct lockset for these doors.

Pad is to be installed by contractor. Containers and compactors will be installed by government

Unit 3010 and the floors above (X010) are to be type C1. Refer to details on A426

Yes, that is the intent; see A101A for wall tag G1. The extent of limestone removal is indicated on sheet AD202.

2 1/2" stud may be utilized as shown in W2 wall type

Refer to revised documents issued with Amendment #3.

The product number for the corner mounted grab bar with shelf is NIV_041K.

A4 coat hook in the accessory schedule is correct. The mirror labeled A4 on sheets A419 and A426 shall be revised to be mirror A1.

Refer to revised documents issued with Amendment #3.

Every resident toilet room to receive the following: A21 Single Toilet Paper Dispenser, Manufacturer: Bobrick, Product Number: B-7685, Mounting:

Surface, Contractor Furnished, Contractor Installed

Provide specified product

The hardware schedule will be updated to clarify this lockset type.

Details 8 and 9 on sheet A611 show existing steel angles and channels. Please confirm these steel components do not bear on the adjacent stone panels scheduled to be removed. If they do then it will significantly increase the amount of stone panels that need to be removed and reinstalled.

Per detail 9 on sheet A611 there is an existing steel angle that appears to be supporting the stone panels above the existing windows. Please clarify the new support details for the existing to remain panels that will now be over new windows instead of existing stone panels. In addition, are these panels structurally secure once the existing windows and stone panels are removed?

Reference A701Typical Strapping Locations visual calling for seven (7) horizontal rows of 4" 18ga flat stock blocking as a universal requirement at all partitions, except Toilet Rooms, Electric Closets, Closets, Shaft Walls, Partial Height Walls, Reception/Waiting Areas - where specific details shall be used.

Please confirm the design intent is truly to include seven (7) rows of horizontal blocking at all corridor, demising, and interior unit partitions (except toilet rooms/closets), and furred walls to exterior within units and the basement.

For Roof types R3, R5 on drawing A703, please confirm that the membrane for these systems is PVC (ref. spec. 0755419) – not TPO.

For the conventional modified system – typically cold adhesive is used for these applications. Please specify membrane attachment method.

The pier caps at column lines C/15.6 and C17.6 are labeled PC-8A. Please confirm these should be labeled PC-6A.

The pier cap at column line 29S is labeled PC-2. There is no PC-2 on the Structural Pier Cap Schedule on S602. Please confirm this pier cap should be labeled PC-2A.

There are two unlabeled glass sidelights shown on either side of the Lounge X018 doors per 4/AI407. Please advise if these are hollow metal frames and provide glass type for these sidelights.

The Finish Legend on AI603 indicates that WC-3 is to be installed at the corridors, as indicated on 5/AI409. However 1, 2 & 6/AI409, all indicate that the typical corridors are to receive WC-1, similar to the first floor corridors as indicated on 1 & 5/AI405. Could you please confirm WC-3 is to be used at corridors.

Plastic Laminate Finish Schedule located on AI601 identifies PLAM-1, Kimball International - Alterna Interwoven at the Resident Rooms both kitchenettes and vanities. Detail 1/A708 identifies shaker style resident room cabinet doors. After speaking with the Kimball International representative, we have been informed that the Kimball International does not manufacturer a shaker style cabinet and that the scheduled Alterna Interwoven is a frameless style cabinets. Please confirm which style of cabinets should be priced. Please confirm that alternate manufacturers can be considered for pricing ilo Kimball International.

It is understood that the existing header angle is anchored to the concrete beam and therefore not bearing on adjacent stone panels. Likewise, it is understood that the top of the stone below the window is anchored back to the CMU. It is understood therefore that adjacent panels do not necessitate removal. Existing anchorage conditions are to be verified. Contractor responsible for any incidental adjacent panels needing removal and reinstallation in order to perform work.

Refer to Question #214.

Confirmed; this is to be installed at locations stated

PVC is confirmed.

Refer to Question 184.

Yes, provide PC-6A caps at columns 15.6-C and 17.6-C.

The cap at grid intersection 27.9/G.5a is a PC-2A.

The window glass in detail 4/AI407 is to be 1/4" tempered. The frames are hollow metal painted P-2. Rough opening is 6.5' x 3' for both.

WC-3 is to be used in the corridors.

During design, Kimball International sales rep noted that they could provide a Shaker Style door for all cabinets and drawers as a custom due to the quantity of the cabinets. Shaker style doors and drawers is the basis of design for the approved aesthetic. Alternate cabinetry manufacturers are acceptable for substitution requests to meet the drawings and specifications.

There is a significant amount of plumbing and hydronic piping work in the basement ceiling that will require the ceilings to be removed and reinstalled.

Please confirm that the ceiling does not need to be reinstalled at the end of each work day because we will also need to remove the grid to accommodate the pipe lengths.

Please clarify if the sprinkler heads will need to be turned up in the basement when the ceiling is temporarily removed.

Sheet FX001 note 6 references a 500 GPM fire pump. Please confirm that pump is existing to remain.

The new and existing chiller rooms are both located in Area B. Please clarify if that is intentional or if any of the chilled water equipment is expected to be installed with Area A in order to provided chilled water at the end of the first phase.

Please clarify if any valves or taps exist in the chilled water piping to connect the new piping without draining the entire system which will require a building wide outage for several days. It would be helpful to have a more detailed drawing of the existing chilled water plant.

Please provide a detail for the connection of the new duct bank to the existing steam tunnel as well as approximate depth below grade. Confirm these raceways and hanger systems are to be installed within the existing steam tunnel to electrical rooms within basement. Additionally confirm no modifications, beyond demolition already depicted, to steam tunnel, steam tunnel contents, and mechanical room it enters will be required.

The new emergency generators, panel GPP, associated duct banks, and emergency switchboards 1 and 2 are all located in Area B or outside but on the Area B side. Please clarify which phase this work should be included in since it provides emergency power to both phases.

Will you please provide more information regarding pre-purchased chiller plant equipment? It is understood that one chiller is currently installed and will need to be moved to the new chiller plant. What are the weights and sizes of the new equipment eg. chillers and heat exchanger? Will the chiller fit in one piece from the existing plant or will it need to be taken apart into pieces? Other than the currently installed chiller, where are the other pieces of equipment located in relation to the building?

Who is responsible for start-up and commissioning of the pre-purchased equipment? Has this been purchased already or will this need to be included in our proposal?

Confirmed: Ceiling does not need to be completed at the end of each work day;

only when work has been completed in an area.

Contractor is to follow all NFPA and applicable industry standard requirements related to temporary work and sprinklers.

Refer to sheets FX100A and FX100B general notes D and E. Modifying the existing system where the ceilings have been removed is acceptable provided that the heads are replaced temporarility with upright sprinkler heads and spacing of such heads complies with NFPA 13. This would mitigate the system impairment.

Fire pump is existing to remain Per the drawings, the chiller plant is located in Phase B; therefore, the new chiller plant work is to be completed in Phase B. For Base Bid work, the contractor will tie into the existing chiller main supply and return lines located at the demarc line between Phase A and B in the basement corridor.

Riser drains do not currently exist and new risers shall have drains installed.

Assume duct bank abuts outer steam tunnel wall; waterproof as necessary. Duct bank raceway shall continue within the existing steam tunnel to electrical rooms in basement.

This work shall be performed during the Base Bid

Refer to documents issued with Amendment #3.

Start-up and commissioning of pre-purchased equipment shall be performed by the contractor.

The Air Ionization Device schedule on drawing H702 calls for the coils to be cleaned on AHU-1 and AHU-2. The drawings do not indicate the location of these two air handlers. Please provide detail drawing or more information for these two air handlers.

Please clarify if there are fall protection anchors installed on the existing to remain roof.

Are there any areas on the project classified as confined spaces or hazardous areas? If so, please define these areas.

Drawing E801 shows feed from a utility transformer to ATS-7. No size for this feeder is shown, and no utility transformer is identified on the drawings. Please identify location of utility transformer and feeder sizing.

Drawing E801 shows feeds from utility transformers to ATS-3, ATS-1, and ATS-4. No utility transformer is identified on the drawings. Please identify location of utility transformer.

Drawing E801 shows feeds from SWBD to ATS-5 and SWBD to ATS-9.

Please identify which switchboards these are referring to.

Drawing E801 shows feeders from ATS-7 to SWBD1 and from ATS-3 to SWBD2. Drawing E802 shows ATS-3 feeding SWBD1 and ATS-7 feeding SWBD2. Please clarify which is correct.

Drawing E801 shows feeders from ATS-1 to SWBD3 and from ATS-4 to SWBD4. Drawing E803 shows unlabeled ATS’s feeding SWBD3 and SWBD4, but these ATS’s are 1600A, while ATS-1 and ATS-4 are shown on E801 as 1200A. Please clarify if unlabeled ATS's on sheet E803 are ATS-1 & ATS-4 as well as identify if they are to be 1200A or 1600A.

Drawing E801 shows a feeder from SWBD2 to ATS-FP. Drawing E802 shows this feeder as ETR. Please clarify if this feeder is new or existing to remain.

Drawing E801 shows a feeder from EMSWBD-2 to ATS-FP. Drawing E802 shows this feeder from EMSWBD-1. Please clarify which is correct.

Drawings E802 and E803 show transformers XFMR1, XFMR2, XFMR3, and XFMR4 as ETR, as well as show switchboards SWBD1, SWBD2, SWBD3, and SWBD4 as ETR. Please confirm the feeders, ATS's, and network protectors between the transformers to the switchboards are also existing to remain.

Drawing E801 shows transformers X-LALB and X-LCLD feeding busduct risers LALB and LCLD respectively. No size is shown for the feeder on the secondary side of these transformers. Please clarify feeder sizing.

Drawing E801 shows a symbol with an M in a box. As this symbol is not defined elsewhere on the drawings, please advise what this symbol represents and where it is located within the building.

Drawing E801 shows busduct risers but no feeder size is provided from the bus plugs to the panels on each floor. Please clarify sizing.

Ionization devices should be installed on each AHU cooling coil within: VAU-1, VAU-2, VAU-3, VAU-3 and AHU-5.

There is no existing fall protection anchorage on the roof.

No.

Feeder size from utility to ATS-7 is the same as ATS-3. 4 Sets of (4) 600 kcmil, (1)#4/0 GND in 4" C.

See sheet E101 site plan with UG Vault location. This is the location of the utility transformer.

Both are to be fed from SWBD-1

ATS-3 is fed from SWBD-1. ATS-7 is fed from SWBD-2.

BOTH ATS are 1600A and the unlabeled ATS on sheet E803 are ATS-1 and

ATS-4.

The feeder is not ETR. It is new.

Feeder is to be from EMSWBD-2

Confirmed. These are existing to remain.

X-LALB is '5 SETS (4-500KCMIL&1-4/0G-3 1/2"C.) X-LCLD is also '5 SETS

(4-500KCMIL&1-4/0G-3 1/2"C.)

M stand for Meter.

100Amp panels feeder = 4#1&1#8G-2"C. 150Amp panels feeder = 4-1/0&1#6G-2"C.

Drawings E110A and E111A show the vertical busduct risers in Part A that do not appear to stack vertically from the basement to the first floor. Please confirm the intent is for the cable tap boxes to be installed at the locations shown in the Electrical Equipment Room in the basement, then the busduct to be routed horizontally from there to the vertical riser locations below Electric Room 1013, then straight up from that point.

Drawings E110B & E111B show the vertical busduct risers in Part B that do not appear to stack vertically from the basement to the first floor, or from the first floor to the second floor. Please confirm the intent is for the cable tap boxes to be installed at the locations shown in Trash Room G021 in the basement, then the busduct to be routed horizontally from there to the riser locations below Electric Room 1026, up to the first floor, then horizontally to the riser locations below Electric Room 2019, then straight up from that point.

Drawings E801 through E803 show switchboards and panels that are installed in either Area A or Area B, but feed panels or equipment in the other area. As just one example, EMSWBD1 is in Area B, but it feeds ATS-7, which is in Area A. ATS-7 then feeds SWBD1, which is in Area B. Please advise the dividing line between the Base Bid and Option #1, and what items should be included in each.

Drawing E801 showns new feeds from ATS-5 and ATS-9 to Elevator Bank #2 and Elevator Bank #1, respectively. The elevator bank numbers are not shown on the floor plans. Please identify which Elevator Banks are # 1 and # 2.

Drawing E801 shows ATS-5, but this ATS does not appear on the floor plans.

Please identify the location of ATS-5.

Drawing E802 shows new feeders to ETR items in the penthouse (T5 and ELPP). No electrical floor plan for the penthouse is provided. Please clarify the locations of these items Drawing E801 shows HLS1B feeding T-5, but Drawing E802 shows T-5 being fed from SWBD2. Please clarify which is correct.

Drawing E803 shows ETR CT-1, CT-2, and Panel CT. These items do not show up on the floor plans. Please identify the locations for each of these items.

Refer to Drawings E801 through E803. Please confirm that any feeders or devices between two items that are shown as ETR are existing to remain, and no new work is required, unless specifically shown. As just one example, confirm that feeders shown on E802 from T5 to EL2, 9A, 9B, and the Elevator Control Panel are existing to remain, including the pull box and disconnect switches, and no new work is required.

Refer to E802. Please confirm that a new breaker is required in HDP1 and a new feeder is required from HDP1 to LPGA, even though both HDP1 and LPGA are existing to remain.

Drawing E802 shows the feeder from SWBD2 to ATS-FP as ETR in one place, but other places where it is shown on E802 and E801 appear to show it as new.

Please confirm whether this feeder is new or existing to remain.

Busducts are to stack vertically from the basement to the first floor and continue straight up. Cable tap boxes should be shown on same wall to indicate as such.

Correct and Confirmed. This busduct riser does not stack vertically from the basement to the first floor or from the first floor to the second floor since the electrical rooms are not located in the same areas vertically.

For electrical equipment whose circuting crosses the main demarc line (separating Base Bid and Option), assume all associated work shall be completed as part of the Base Bid.

Elevator Bank #1 serves Base Bid, Bank #2 serves Option area.

ATS-5 is ETR. Verify exact location in the field.

This equipment is existing to remain. Verify exact location in the field.

SWBD-2 is correct

This equipment is existing to remain. Verify exact location in the field.

Confirmed. No new work is required. This equipment and feeders are existing to remain.

Confirmed. New breaker is required and new feeder.

Confirmed existing to remain

Refer to the one-lines for SWBD1 through SWBD4 on E802 and E803, and the panel schedules on E705. The panel schedules do not distinguish between new and existing breakers. Please confirm that the only new breakers required are the ones not noted as ETR on the one-lines, and that all other breakers in these switchboards are existing to remain.

Refer to E803 and E704. Please confirm that no new breakers are required in panels MECH-H and MECH-L, and the only work required for these panels is the relocation and reconnection.

Spec Section 263213-2.5, Gaseous Engine Generators, refers to Section 231123, Facility Natural Gas Piping. This section does not exist. Please advise Drawing ED110, Keynote 2 says to demolish the existing generator once the new generators are online. Drawing E101 shows the new generator enclosure overlapping the existing generator location. Please advise if the new generator enclosure location should be adjusted so as not to conflict with the existing generator, or if the existing generator can be removed prior to the new generator building being complete.

Drawings E111A through E112B show 12”x4” cable tray. Spec Section 270536 calls for 3” deep ladder tray or 2” deep basket tray. Please advise the type of cable tray and size required for this installation.

Drawings E111B, E112A, and E112B show a receptacle symbol with three “legs”. This symbol is not defined on the drawings. Please advise what this is meant to represent.

Spec Section 263213-2.1: The generator basis of design is listed as Generac-MG (modular parallelling series). Will alternate manufacturers be considered?

Drawing E110A: There is an ATS-8 located in room G012A which is not shown on the riser. Please advise if there is any work involved with ATS-8.

Drawing E801: What will be the routing of the secondary feeders from the utility transformer(s) to the ATS equipment? Will any of this be routed within the building and if so, what conduit installation methods be required?

Drawing E801: ATS-5 and ATS-9 each show a normal power feed from "SWBD." Please identify SWBD# and its location.

Drawing E801: The "Life Safety Panels" detail shows panel HLS1B re-feeding ELPP. Please identify where is ELPP located?

On Drawings E801 & E802 both SWBD2 and Panel HLS1B appear to be feeding T-5. Please clarify.

On E801 the ATS-7 appears to be feeding SWBD-1 on the load side and the ATS-3 appears to be feeding SWBD-2 on the load side. On E802 the ATS-3 appears to be feeding SWBD-1 and the ATS-7 appears to be feeding SWBD-2.

Which is correct?

Detail Section 7 on drawing CS106 Pavement Connection/Patch. This section reads "Install subbase gravel and base pavement per typical Pavement Section".

Please advise about the Typical Asphalt Section to be used?

Confirmed. The only new breakers are the ones not noted as ETR on the one-line.

Confirmed. No new breakers are required in those panels.

The reference should be to Section 221123

The new generator enclosure location will be adjusted slightly to the east to avoid conflicting with the existing generator. The existing emergency infrastructure must remain active until the new generator systems are fully tested, commissioned and accepted by the AHJ.

Provide 12" basket cable tray, minimum 2" deep

This is a NEMA 10-30R, special receptacle.

Alternate manufacturers are acceptable as long as they meet the generator basis of design as an approved equal alternate.

There is no work involved with ATS-8.

The conduit routing will run along side the steam tunnel into the furthest south end of the building entering the exterior wall of Mechanical room G022.

Refer to Question 238.

ELPP is existing to remain. Please verify exact location in the field.

SWBD2 is to refeed existing T-5.

ATS-3 and ATS-7 should both be fed from SWBD-3 and SWBD-4 respectively.

See detail 8/6 on sheet CS106.

Detail Section 8 on drawing CS106 Light Duty Paving Section. Please advise where is this section applicable for? The Construction Plan does show clearly about light Duty Paving other than Patchin and Milling and Overlaying work Please provive more details about the two (2) underground Water Tanks to be removed? Please include type of tanks, volume capacity and depth. The Construction Plan drawing CS103 refers to Architectural Drawings for foundation repairs and water proofing. The Architectural Drawings do not shown this work.

The Site Plan drawing CS103 shows Two (2) Planter Boxes, please provide specifications and details for this work?

Please clarify the smoke detectors with sounder bases within each residential unit are to be addressable smoke detectors connected to the fire alarm system and not 120VAC detectors monitored by the fire alarm system.

Spec 275223-2.1.D mentions call system ability to use wireless pendants to create system calls. The specs and plans do not call for pendants. Clarify if pendants are to be provided with the system, and if so how many are required?

Plan E110B, Toilet G410 does not indicate call system devices. This toilet appears to be within the ceramics room, and it's not clear if this is a resident area or a staff only area. If this is a resident area, should it include coverage by the call system's RF antennas and should this toilet get any call system devices?

Plan E111A, Hallway Door (Door ID 1200A) outside room 1211 and 1208:

This doorway appears to block visibility to the domelights outside rooms 1208, 1211, and 1212. Should a zone light be added at this door, to direct staff response to these rooms?

Plan E111A, Toilet 1225: This toilet indicates a Pullcord Station, but does not indicate a Domelight. The toilet is located behind the MRT (nurse station) desk, so it is likely a staff only toilet. Should this toilet get a domelight, or should the pullcord be deleted from scope?

Plan E111A, Women's Toilet 1025: This is a multistall toilet room with 4 toilet stalls, however only 2 of the stalls indicate a Pullcord Station. Should all 4 stalls include a Pullcord Station.

Plan E111B, Spa 1313 and Toilet 1322: In similar Spa 1214 and Toilet 1215, the interior Toilet has it's own Domelight. Should the interior Toilet 1322 get a Domelight for consistency?

Plan E111B, Staff (workroom) 1314 indicates a Domelight but no call system devices in the room. Should there be a call device in this room, or is this Domelight a mistake?

Plan E112B, Spa 2414 does not indicate a Pullcord Station or Domelight. Does the Spa room include a tub and should it include call system devices? (typ floors 2-7) Plan E402, Independent Living Unit D6: The toilet in this suite indicates 3 Pullcord Stations which is inconsistent with all other suites which only include 2 Pullcord Stations. Is the 3rd Pullcord Station in this detail a mistake, and should there only be 2 Pullcord Stations?

See detail 8/6 on sheet CS106.

Tanks are abandoned water storage tanks from 1960; 125 psi, 72" x 360". Infill remaining concrete openings at foundation wall. Provide #6 dowels with min. 6" embedment in existing wall on 12" centers. Provide new waterproofing.

Refer to Section 1/A417 & Detail 4/A504 The smoke detectors with sounder bases are not 120VAC detectors. Refer to specifications and drawings for additional performance requirements related to notification for smoke alarms.

Specifications do not indicate "ability" to use pendants. They specify their use and part #. Basis of design is quantity 354. Confirm quantity with Owner prior to purchase.

Call system devices and coverage not required

Dome light should be added to scope in this location. Also, apply to corridor 1300.

Pullcord station should be removed from scope in this location.

Pullcord stations should be added to scope in this location.

Dome light should be removed from scope in this location.

Dome light should be removed from scope in this location.

2414 is identified as a storage room and does not require a call systems device.

Pullcord stations should be removed from scope in this location.

The only Access Control product called out by name anywhere in Division 28 is Yale data on credential Multi Family Access Management. Is this the desired Manufacturer and system? If so, should we convert part numbers listed to current part numbers?

Division 28 calls out Yale Multi Family which no longer exists as a brand. It is now called "Accentra Digital". Please confirm Accentra Digital is this the product requested?

Division 28 Calls out Yale (Accentra Digital) and Division 8 calls out Sargent IN100 unit locks. Sargent unit locks no not work or integrate with Yale (Accentra) Access Control. Are 2 completely separate systems desired or would a completely integrated system be perferred? If not, is the Accentra or the Sargent locks correct?

No products are specified and/or called out for video surveillance. Please provide Basis of Design for Video Surveillance equipment.

The documents provide reference to "SeniorTV Vendor" scope. Please clarify contractor responsiblities and requirements for components related to "SeniorTV" scope of work.

Does both the Single-mode and Multi-mode Fiber Backbone cables terminate in the same 1U fiber enclosure shown on the rack elevation drawings E406 detail #2 Typical Telecom Rack Elevation. Or should they be separated into two

(2) 1U enclosures.

Specs 271500-2.4.A states terminate with female F-connectors, shouldn’t this be male f-connectors Specs 271500-2.4.A-2, States male outlet inserts, shouldn’t this be female inserts Specs 271500 states to include high-definition passive splitter, but the Plan A and Plan B drawings state that the SeniorTV vendor to provide system components and Final Testing. Please confirm who is to provide the high-definition passive splitter Specs 271500-2.4 B. RG-11 is not shown on the Communications Riser Diagram for Backbones. There is only a Note on the Plan A and Plan B drawings stating to install an RG-11 from the Janitor closet to the nearest Telecom closet. Is there a requirement for an RG-11 backbone?

Yale door hardware is specified in Division 8. Division 28 Electronic Access Control requirements are performance based specifications and do not mention manufacturers. Per previous RFI responses, the existing electronic access control system is Lenel. However, AFRH has recently purchased the Salto KS cloud-based system with XS4 Original+ hardware. Provide components compatible with new system.

Yale door hardware is specified in Division 8. Division 28 Electronic Access Control requirements are performance based specifications and do not mention manufacturers. Per previous RFI responses, the existing electronic access control system is Lenel. However, AFRH has recently purchased the Salto KS cloud-based system with XS4 Original+ hardware. Provide components compatible with new system.

Yale door hardware is specified in Division 8. Division 28 Electronic Access Control requirements are performance based specifications and do not mention manufacturers. Per previous RFI responses, the existing electronic access control system is Lenel. However, AFRH has recently purchased the Salto KS cloud-based system with XS4 Original+ hardware. Provide components compatible with new system.

Per previous RFI response, AFRH uses ExacqVision and a mix of Axis and Pelco cameras. In addition, AFRH currently utilizes Eagle Eye Network for cloud based monitoring and storage. AFRH requires 12 month subscription for cameras installed. Contractor to field verify components and system integration requirements.

Contractor rough-in and preparation scope outlined within the same notes. As indicated, SeniorTV vendor is a service provider to AFRH and provides system components and final testing. Contractor to coordinate with AFRH and system vendor.

One 1U fiber enclosure is acceptable

Male F-style connectors should be used.

Female F-style inserts should be used.

Per previous RFI response, these devices may be supplied by the Service Provider for final balancing of the system.

Building riser backbone cabling is a shared fiber optic infrastructure as indicated on Sheet E804.

There are no requirements in the Specs or on the Drawings for Copper and Fiber Patch Cords. Please confirm the patch cords are to be furnished by the owner Networking components and patch cords will be provided by AFRH.

Specs 281500.30-1.7.B.6 states: Owner to provide….Installation, final configuration and commissioning of electrified door and access control system hardware, power supplies and related accessories. Contractor scope of work is listed in Sections: 1.7.A Furnish and Install Access Control System Firmware and Software, 1.7.C Provide and Install Source Power Wiring and raceways/junction-back boxes, 1.7.D Low Voltage Wiring and Commumication Cabling, 1.7.E Elevator card reader and call button activation coordination, and 1.7.F Final connections to fire alarm system if required. Please confirm contractor only furnishes the Multi-Family Data-On-Credential Access Control Devices and the Owner completes all installation, configuration, and commisioning beyond scopes defined in 1.7.A, 1.7.C. 1.7.D, 1.7.E, & 1.7.F.

The contractor is responsible for providing a complete and fully functional electronic security system.