Request for Information (RFI) document_06 Apr 23.pdf

REQUESTS FOR INFORMATION (RFI’s) AND RESPONSES – B409 ALLIED SUPPORT

QUESTION 01:

Since we were not permitted to access three exterior sides and inside of the SCIF during the site visit. Is it assumed that there is no work inside the SCIF for this contract?

That is correct. Work is not anticipated inside the Re-Locatable Facility (RLF). This project is to connect the RLF to the permanent building infrastructure to enable full functionality.

QUESTION 02:

There seems to be substantial info missing from what our responsibilities are in relation to the construction currently being done to the SCIF. Can you make clear what the responsibilities of the current contractor are, and where our responsibilities start?

The responsibility of the current contractor is to have the RLF is capable and ready to connect to the building utilities (to include the communications infrastructure), and; equipment transported and assembled in Mansfield is functional.

QUESTION 03:

The 180-day performance period seems unrealistic. The design, analysis, document deliverables phase, submittal & approval process, and procurement will take that long. Also, lead times on equipment will make this impossible. Please explain Govt intent, the anticipated NTP date, and what the 180-day performance period encompasses?

Contractors may propose alternative performance period however, the need by date is anticipated to be no later than November to allow for occupancy and certification.

QUESTION 04:

Is it true that the power and mechanical hook up to the SCIF by the contractors on site currently are temporary? If so, who does the demo of temporary hook ups?

The power and mechanical hook up to the RLF is for the purpose of testing and ensuring the transported equipment is functional. For the equipment items that require relocation, the deconstruction will be part of this project’s scope of work.

QUESTION 05:

Are the condensers currently being hooked up to the SCIF we witnessed at the site visit the ones we are to use in our contract? What is the permanent location of the condensers?

The condensers that were being installed during the site visit would be the condensers being used to cool the RLFs. Additional condensers/CRAC units are in the scope of work to provide climate control for the communications room being renovated/constructed as part of the existing hangar.

QUESTION 06:

Is the SCIF in its permanent location inside B409 hanger? If not, will it have to be moved/adjusted?

The RLF is not anticipated to move or be adjusted as part of this project.

QUESTION 07:

Is the current location of the generator where you want it? If not, what is the Govt desired location?

The generator will have to be relocated and a supporting concrete pad be constructed to support. The pad and generator shall be constructed and placed between the existing drive into hangar and existing sidewalk entering the building, where the picnic table currently resides.

a.

QUESTION 08:

Will the existing fire suppression system need to be decommissioned and a new one be engineered and installed for the entire B409 Building and its contents?

No. The fire suppression system has just been updated for the hangar bay and adjacent spaces. The only requirement is to install/connect a water supply from the hangar into the fire suppression system in RLF. The RLF has its own fire suppression system.

QUESTION 09:

Room 103, 103A, 104 AND 105 Have signs stating that the flooring is asbestos material. Are we to handle this in this contract in the affected areas? Or, will the Government remove in all areas, to include the hallway and restrooms before starting? Or patch where the walls will be removed during demolition. Room 103A appears to have a new all over the floor, but Rooms 104-105 appear to be original. (See attached sketch)

Our records indicate that testing in the facility found that RACM does not exist in the floor tile of the building. The building was renovated in 2002, removing all the ACM tile and mastic. There is no RACM in the building.

QUESTION 10:

Will the 2000amp main gear/UPS 1 & 2 with their cabinets/three transformers including the 750KVA transformer/Main shutoff cabinets/battery monitoring system with CPU & EPO buttons all be relocated into the UPS room

That is the intent.

QUESTION 11:

Regarding the new CRAC Unit in CPU room do we have actual or approximate voltage & amperage requirements?

See SOW para. 4.2.5.1., the contractor shall design and install an adequately sized CRAC to cool the resulting rooms 104 and 105.

QUESTION 12:

Will the upgraded utility transformer be going in the same place as the existing transformer?

To the extents practicable, yes.

QUESTION 13:

Will the electrical contractor be responsible for secondary conduits/feeders from utility transformer?

Yes. The contractor shall be responsible to provide a full and usable facility, capable of providing electrical to both the hangar and to the RLF.

QUESTION 14:

Will electrical contractor be responsible for secondary terminations in utility transformer?

Yes. The contractor shall be responsible to provide a full and usable facility, capable of providing electrical to both the hangar and to the RLF.

QUESTION 15:

Regarding feeders from electrical room (the room shown with UPS location) to the gear at the RLF - can this be installed in EMT conduit? If so, EMT set screw fittings or compression type?

Yes. EMT conduit with compression fittings are acceptable.

QUESTION 16:

Regarding the voltage regulator – is this Government supplied? Also is there a part number or some specs for it?

The voltage regulator will not be supplied by the Government. Basic requirements for the automatic voltage regulator to include a computer grade, solid state, with phase control. Recent events in the area have shown that the electrical utility to be an unreliable power source with voltage spikes and dropped phases that will damage the computers/servers.

QUESTION 17:

Are we upgrading feeders/gear to the hanger from the utility transformer or adding secondary feeders just for the operation of the RLF?

The RLF should be able to operate as independently as practicable.

QUESTION 18:

Will the 2000amp main gear/UPS 1 & 2 with their cabinets/three transformers including the 750KVA transformer/Main shutoff cabinets/battery monitoring system with CPU & EPO buttons all be relocated into the UPS room?

Yes. To the extents practicable.

QUESTION 19:

Is there a preferred location to permanently install the outdoor main gear & transfer switch?

No however, the transfer switch should be as close to the generator as practicable.

QUESTION 20:

Is there a preferred route to run secondary conduits/feeders to the main gear – such as being all underground which will involve saw cutting & pour back of concrete/asphalt – or part of it underground

& part routed on exterior brick wall & possibly on roof of building?

There shall be no roof penetrations. Conduits and feeders, preferably, should route below ground and may penetrate the building on the side walls of the building. Penetrations shall meet all applicable building and electrical codes.

QUESTION 21:

Do we need to remove the ceilings in Room 103 & 105 due to the electrical and communications? And do we need to replace?

The drop ceiling is to remain. Where walls are removed, ceiling tiles will be required to be put in place to meet fire code. Any damage that occurs during construction shall be replaced.

QUESTION 22:

Do you have the latest fire pump test, to include the pump curves. We are confirming it meets demand.

The pump curves may be found through the manufacturer’s website and documentation. The existing pumps are an Aurora 6-481-158 pump (fire suppression room) and a Marathon Electric

AH444TSTDS4332DP W (mechanical room). A HEF test performed for the fire pump on 07 MAY 2021 had a total output flow rate of 1,230 gpm at 125 psi (at base of riser) with 2.75% foam. Water equivalency results are as follows:

Output Flow Rate (gpm)

Input Flow Rate of Water (gpm)

Flow Pressure @ Base of Riser (psi)

1206 30 135

1320 28 120

1800 39 130

1150 27 120

1140 28.9 125

1600 41 110

1360 31 130

1330 30 140

QUESTION 23:

Does FPE has to be licensed in Ohio?

Yes. Where applicable, the Designer/Engineer of Record shall be a professional engineer registered in the State of Ohio.

QUESTION 24:

Working Times, There is an area stating if you are interrupting fire alarm or water (is this fire water or domestic water) “Work Outside Regular hours”. Does this work need to be done after hours?

No.

QUESTION 25:

Do we only have to paint the bulk main feed from the system to The RLF building? Do you have the paint color?

Assuming this is in regard to the water for the fire suppression system. Water lines for fire suppression should be red in accordance with UFC.

QUESTION 26:

Paragraph 3.1.2.6 Mentions “Remove all fire suppression system cylinders and canisters and dispose of in accordance with Disposal of Ozone Depletion Substance”. Is there a current gas system? We could not where these canisters are located could never find anything on site. Typically, these are for computer rooms or IT rooms somewhere you do not want water. Are you wanting an FM 200 Gas system?

No, there is not a gas system. Disregard the paragraph, it was added in error.

QUESTION 27:

Fire riser drains, There is a floor drain on the opposite side of the unit from the riser. Can we run our drain to the floor drain. This would eliminate any penetration to the hanger and also trip hazards.

Yes.

QUESTION 28:

The generator is Government Furnished Contractor Installed. Can you please provide the specifications for this generator?

The equipment was transferred as part of the relocation of the RLFs to Mansfield. All known information regarding this equipment was provided as part of the solicitation.

QUESTION 29:

The transfer switch is Government Furnished and Contractor Installed. Can you please provide specifications for the transfer switch?

The equipment was transferred as part of the relocation of the RLFs to Mansfield. All known information regarding this equipment was provided as part of the solicitation.

QUESTION 30:

Attachment 1 Scope of Work, Electrical, Modernize Electrical Service 4.3.1.2.1 requires plant distribution to be separated for (3) primary circuits. Can you please provide required loads and locations for each?

(Existing Electrical, New Communications, and RLF)

Existing Electrical –

New Communications – Branch must be able to support provided in the communications rack layout provided and the new CRAC unit(s) for rooms 103 and 105.

RLF – Shall be able to support four (4) three phase, 120/208 V MDPs located on the exterior of the RLFs.

Panel MDP-A, is a 600 amp, NEMA 3R Panelboard, Total Demand Load: 181.8 kVA at 504.7 amps

Panel MDP-B, is a 650 amp, NEMA 3R Panelboard, Total Demand Load: 215.7 kVA at 598.6 amps

Panel MDP-CA, 1,000 amp, NEMA 3R Panelboard, Total Demand Load: 342.0 kVA at 949.3 amps

Panel MDP-CB, 1,000 amp, NEMA 3R Panelboard Total Demand Load: 343.1 kVA at 952.3 amps

QUESTION 31:

Attachment 5 drawing shows the suggested location for the generator in front of a garage door left of room 108A. The drawing also shows the recommended location for the Computer Room Air Conditioning (CRAC) Unit in the parking spaces outside of the mechanical room near the transformer.

Would it be acceptable to install the generator near the mechanical room where all the electrical switch gear is located?

More information will be needed to make a determination however, it may be considered. Please be aware of existing underground utilities and communications around the area.

QUESTION 32:

Attachment 5 drawing shows the suggested location of the CRAC Unit in the parking are outside of the mechanical room. Would it be acceptable to locate the CRAC unit either n the grass area outside room 103 or on the roof above room 103?

Mechanical units may be located at alternate locations. Roof penetrations should be avoided if possible.

QUESTION 33:

Attachment 3 drawing 1 shows the location of the communication handholes (new and existing) and the conduits to be installed. Are the 4 – 4” conduits into building 403 a part of this project? Is so, can you please provide the distance between the new handhole and building 403? The drawing also shows 4 – 4” conduits running from the new handhole and the existing communication handhole 403. Are these new conduits a part of this project? If so, can you please provide a distance between the new handhole and the existing handhole 403?

Conduit to Bldg 403 is not part of this project. The distance from the proposed handhole (CHH 411) to the existing handhole (CHH403) is approximately 150 ft.

QUESTION 34:

Attachment 4, Building 409 Floor Plan shows windows highlighted in lime green in rooms 103A and 105 to be demolished and blocked and bricked in. Also, on this drawing window in office 114 is also highlighted. Is the window in the office to be removed, blocked, and bricked in as a part of the project?

If so, can you provide a size of the opening?

Office 114 is outside the scope of this project.

QUESTION 35:

Attachment 3, Drawing 3, identifies the scope of the project to demolish the walls of room 103 and 105 in yellow leaving two distinct rooms 103 and 105. The room (104) located in room 105 door to the corridor 107 is to be blocked in. There are asterisks identifying an additional door to the corridor 107 from room 105 that may need to be blocked in and a double door that may need to be added. Can you please clarify if the existing door from room 105 to corridor 107 is to be demolished and blocked in and the double door to the hangar is to be installed?

Message was intended for an internal audience. Doors from Room 104 and Room 105 are to be removed and blocked in. The user requested a double door be installed from Room 105 into the hangar bay. The door may be installed where the existing window in Room 105, furthest to the south (plan left).

QUESTION 36:

Part of the construction of the new systems and room configurations will be to cut concrete floors to allow new conduits into the rooms and remove existing walls leaving the floors without VCT. Is it the intent to replace the VCT in rooms 103 and 105?

The intent is to demolish the VCT in the resulting rooms.

QUESTION 37:

Attachment 1, Scope of Work, requires the contractor to design and build renovations to modernize the electrical, mechanical and fire suppression system of the existing building, install and place in service associated equipment for the RLF, design and install redundant communication infrastructure for the RLF, demolish and rebuild rooms 103 and 105. This work shall make the building safe, complete, and usable. Can you provide missing information to allow us to design and price the required systems? a.

What utilities will need to be tied into the RLF per this project?

Water to support the fire suppression system and electrical. See response to question 3 of this RFI for electrical demand.

a. Can you provide the electrical requirements of the RLF?

See response to question 3 of this RFI for electrical demand.

b. Can you provide the fire sprinkler water supply requirements for the RLF

See Scope of Work, paragraph 4.3.2.3.

QUESTION 38:

The egress path from the RLF to the exterior of the hangar will need to be evaluated as part of project life safety evaluation to determine whether a rated egress path will be required. a. Can you provide a drawing showing the placement of the RLF in the Hangar with RLF egress points located and dimensioned?

The RLF is temporary. Egress will be provided for the RLF on the east and west entry ways of the RLF.

a. Can you provide the dimensions of the RLF and distances to the hangar walls?

The north and south distances between the RLF and the hangar walls are approximately 36-inches.

QUESTION 39:

In reference to your drawing notes “prov. computer room air conditioner w/round spiral duct & direct to duct grills” Please provide the heat gain (BTU/Hr) of your internal equipment in Room 103.

Also, we need parameters:

1. Internal set point

2. Deviation allowed from set point

3. Total BTU/Hr and Sensible BTU/Hr

4. Exterior wall section

5. Roof section

6. Ceiling height needed to maintain

Reference SOW Para. 4.2.5. The CRAC unit(s) design is delegated to the contractor for both Rooms 103 and 105. Design standards shall meet 2009 ASHRAE Recommended Range for Class 1 Data Centers.

Temperature range: 64.4 degF Dry Bulb (DB) – 80.6 degF DB

Moisture Limit: 419 degF Dew Point (DP) – 60% Relative Humidity & 59 degF Dew Point

QUESTION 40:

Has the AFCEC exempted any requirements of the 32-1023? If so, please explain in detail.

Very rarely in cases where it can be shown that the industry standards, IBC, NFPA, and/or NEC are more current.

QUESTION 41:

Has the AFCEC given authority to provide exemptions to the UFGS? If so, please explain in detail.

The UFGS is the Unified Facilities Guidance Specifications to provide a standard across the DoD and provides flexibility for site specific cases.

QUESTION 42:

What exemptions has the NGB/A7 given to the designers of the proposed project in regard to ANGTETLs, being this is a collaborative integrated design process?

NGB/A4 provides ANG ETLs as a standard across the ANG and provides flexibility for site specific cases.

QUESTION 43:

Please identify the Govt team members of this proposed collaborative project in regard to the DWG?

Maj Chung will be the Single Point of Contact for this project.

QUESTION 44:

What are the commercial standards that the UFC maximizes?

UFGSs and UFCs incorporate the consensus codes from representative professional organizations such as IBC, NEC, NFPA, ASTM, IEEE, ASHRAE, etc.

QUESTION 45:

What portions of the WBDG will our design team be held to?

UFGS and UFC

QUESTION 46:

What is the maximum extent of sustainable design that is required to be incorporated into the proposed design?

For Room 103 should meet to maximum practicable. Room 105 is considered to be temporary.

QUESTION 47:

Please provide the self-assessment metric that ANG completed so we can review and establish the DI.

There will not be a DI for this project.

QUESTION 48:

Are we to provide a life cycle cost analysis? If so, what measures are to be incorporated into the design?

No

QUESTION 49:

What renewable energy features are we to incorporate into our design?

None

QUESTION 50:

What impacts of utilities privatization as it relates to metering will our designers need to consider?

ANG has recently been deemed exempt from utilities privatization.

QUESTION 51:

What local FAA requirements are coming from the TOs?

FAA A/C 1300 regulates construction within 250 feet of an active airfield (Taxiway Alpha) and within the Object Free Zone of an active airport. The use of cranes will require filing a FAA Form 7460 for prior approval from the FAA.

QUESTION 52:

In referring to the ANGETL 12-07, what are the factors that the govt will determine our designer’s competency?

Professional registration within the State of Ohio for their specific discipline.

QUESTION 53:

What is the Govt timeline for our designers to achieve the Govt requirements and design intent during the concept development phase in regards to the ANGETL 10-03?

For the purposes and intent of this project, move directly to design. The required by date will not allow for a lengthy design period.

QUESTION 54:

Has the NGB/A70 authorized the BCE to use the integrated design process?

Not Applicable

QUESTION 55:

What kind of adjustments to procedure has the NGB/A70 PM consulted to the BCE?

Not applicable. The BCE has the approval authority for this project.

QUESTION 56:

Can the BCE impress to us why the integrated design process is the appropriate vehicle for describing all the project requirements so to provide competitive IFB?

All required information has been provided

QUESTION 57:

Is this a MILCON or SRM project? If so, has it been determined if the awardee will be in the BRC and

CRC?

SRM. This is a delegated design. A BRC and CRC will not be necessary.

QUESTION 58:

If a BRC is required, how many calendar days does the Govt have in reviewing and validating project documentation?

Not Applicable.

QUESTION 59:

Who will determine when design objectives have been met before a CRC is scheduled?

Not Applicable.

QUESTION 60:

What kind of forum is required to brief the design process analysis to the DWF?

Not Applicable.

QUESTION 61:

Please provide desired Govt milestones to aid in the project schedule development so to provide a realistic CPM in the IFB.

Contractor may provide an adjusted project schedule based on their capabilities.

QUESTION 62:

During the design analysis process field issues may arise that were not anticipated for, attributing to costs the contractor is unable to absorb. How will the Govt manage “different site conditions” or

“unforeseeable circumstances” considering the bid has been already submitted?

This will be similar to all other projects, as it relates to different site conditions and unforeseeable circumstances. See relevant FAR clauses.

QUESTION 63:

Who has the ultimate responsibility for reviewing each design submittal?

The BCE, KO, and their delegate.

QUESTION 64:

Who ensures the appropriate coordination with DWG and any other applicable agencies is completed and documented for each design submittal?

See above.

QUESTION 65:

To ensure compliance with the FAA, will a FAA Form 7460 to the FAA need to be submitted? If so, who is responsible to do so?

The contractor will be responsible for filing the FAA Form 7460.

QUESTION 66:

What specific submittals have the NGB/A70 rescinded?

Just provide the proposals, calculations, shop drawings, and standard AF 3000s for materials and designs.

QUESTION 67:

Is the contractor to provide and install furniture and any communications equipment? If so please provide the programmatic cost estimates for each.

No.

QUESTION 68:

How much time has the DWG allotted for submittal review?

There will not be a DWG. The BCE will coordinate designs with KO and Contractor.

QUESTION 69:

Who ensures all required environmental permits are identified and is required to coordinate with local environmental agencies?

That is a Contractor requirement.

QUESTION 70:

Who decides that the design complies with anticipated scope and regulations of the project?

Contractor develops and Government reviews. The Contracting Officer is the sole authority that can commit Government funds.

QUESTION 71:

Who provides the technical review of the fire suppression system?

Not applicable. A fire suppression for the RLF is self-contained within the RLF. The fire suppression system already exists for the building.

QUESTION 72:

Who provides the technical review of the fire alarm?

Not Applicable.

QUESTION 73:

What role does the NGB/A70 take in the integrated design process?

None

QUESTION 74:

Do you have an estimated BTU load of the equipment in the computer room? If not, can you please calculate one and post it?

The BTU loads for rooms 103 and 105 are part of the delegated design for the project as indicated in paragraph 4.2.5 of the Scope of Work.

a. For Room 103, 7 server racks are anticipated to be installed. Approximately 3,500 BTU/hr for each server. Total 24,500 BTU

b. For Room 105, UPS systems typically generate 2,000 BTU/hr for each UPS; 75 kVA XFMR at 13,700 BTU; 750 kVA XFMR at 35,325 BTU; 300 kVA XFMR at 28,300 kVA, and; miscellaneous breakers at 13,000 BTU. Total 94,325 BTU

QUESTION 75:

Please provide what sustainable concepts and design goals the BCE and the NGB/A70 PM have developed for this project.

Refer to questions 40-73/responses

QUESTION 76:

What requirements has the NGB/A70 PM established in the DI given to BCE?

Refer to questions 40-73/responses

QUESTION 77:

Which sustainment category of work has been determined for this project?

Refer to questions 40-73/responses

QUESTION 78:

What are the project sustainability goals?

Refer to questions 40-73/responses

QUESTION 79:

Who registers to accomplish both USGBC design application review and USGBC Construction

Certification review?

Refer to questions 40-73/responses

QUESTION 80:

What is the estimated time period the BCE has for the A-2 Concept Development Phase?

Refer to questions 40-73/responses

QUESTION 81:

What specific deliverables are required for ANG Sustainable Design and Energy Conservation?

Provide ability to meet ASHRAE 90.1 standards.

QUESTION 82:

Who is responsible for developing a strategy to accomplish the ANG Category of Work and LEED goal objectives?

The Designer of Record. LEED is not required for this project.

QUESTION 83:

Is a CxA required for this project? If so, what are the prerequisites?

No. LEED is not required for this project.

QUESTION 84:

Who makes the decision to pursue enhanced commissioning during the Type A design stage?

LEED is not required for this project. There will not be Type A design. Designs here are “delegated” to the Contractor to meet the Scope of Work in order to provide a server room to support the ITN for

Room 103; electrical and equipment support for the RLFs in Room 105, and; supporting communications and electrical requirements to accomplish the project objectives.

QUESTION 85:

Please provide specific details, for each team member, what responsibilities the contractor, BCE, NGB/A70 PM have to the sustainable documentation in accordance with ANG ETL 10-03 Objectives and

Procedures.

See questions 75-84/responses.

QUESTION 86:

What is the estimated time the Govt has for the Type A phase and design?

See questions 75-84/responses.

QUESTION 87:

To what extent is the Govt responsibilities to develop documents which implement USGBC LEED strategies for design and construction?

See questions 75-84/responses.

QUESTION 88:

What sustainable goals has the NGB/A70 PM developed to incorporate into design and construction?

See questions 75-84/responses.

QUESTION 89:

Who is responsible for installing utility metering in accordance with UFC 1-200-02?

Utility metering during construction will not be required for reasonable use for water and electricity.

QUESTION 90:

What design decisions has the Govt made a priority to LCCA?

LCCA applies to renewables and HVAC design for Return on Investment, and sustainability and maintenance costs, respectively. Renewables are not being considered for this project. The Designer of

Record should be able to provide their best engineering judgement.

QUESTION 91:

What LCCA design policies have been established to utilize the BLCC?

See previous response.

QUESTION 92:

What EPAct05 compliances are we to figure in accordance with DD1391 and UFC 1-200-02?

Renewable energy is not part of this project. HVAC systems must be able to meet ASHRAE 90.1 standards.

QUESTION 93:

What components of construction are to be considered to support a future ability for the building to be brought into full EPAct05 compliance?

See previous response.

QUESTION 94:

Which project modeling results are to be provided with Type A-2 submission?

Not applicable.

QUESTION 95:

Are we to comply with EISA 2007?

Yes. EISA 2007 is federal law (Public Law 110-140) however, surface run-off and the area of site disturbance is anticipated to be less than 5,000 sf.

QUESTION 96:

Which renewable energy technologies are to be considered?

See previous response.

QUESTION 97:

Which ground source HVAC system shall be considered in accordance with ANGETL 15-01-04?

Geothermal and solar hot water are not being considered for this project (in accordance with ANGETL

15-01-04). Current and Best Available Technology (BAT) for ground source HVAC has been found to have an unacceptable ROI for this area.

QUESTION 98:

Please clarify what the plan is for all the items that are outside of Room 105 (location of the future double doors).

a. Are we to abandon in place the piping that is coming down the wall and disconnect the eye was station, shower, etc.?

Yes.

b. If not, where are all those items supposed to be relocated to?

Not Applicable.

QUESTION 99:

SOW 4.4.2.1.1 states, “install pathway from existing manhole (CMH409) into the communication room

(103)”. Attachment 04 B409 Interior Drawing states “prov. New 4-in diam conduit for comm POS from new MH” and points to room 103. Please confirm that this note from Attachment 04 is referring to the existing manhole (CMH409) and not a new manhole.

Correct. The existing conduit from CMH409 enters the existing mechanical room that is to be abandoned and new conduit from CMH409 is to be installed to directly enter Room 103.

QUESTION 100:

Please provide details on the exterior wall construction for the 2 window infills in room 103. Please provide specifics for CMU, air barrier, vapor barrier, air gap, reinforcing, brick veneer, etc.

See detail provided in question 39/response.

QUESTION 101:

Please provide details on the interior wall construction for the 2 window infills in between rooms 101 and 105. Please provide specifics for CMU, air barrier, vapor barrier, air gap, reinforcing, brick veneer, etc.

See detail provided in question 39/response.

QUESTION 102:

Attachment 04 shows a rectangle at each of the two window infills in between rooms 101 & 105, on the room 101 side. What are these?

Fire drop doors. The facility was an aircraft fuels maintenance hangar.

QUESTION 103:

SOW 4.3.1.4.1 states that the government provides and the contractor installs in the generator, and that the contractor is responsible for the concrete pad. Please provide details for this concrete pad.

6-inch reinforced concrete slab on grade

QUESTION 104:

Please specify parties responsible for design, provision, and installation of all equipment:

SOW Item 4.3.1.1 – 2,500 kVA transformer

SOW Item 4.3.1.2 – Distribution Panels (assumed needed for this SOW)

SOW Item 4.3.1.3 – Automatic Voltage Regulator

UPS and Voltage Regulators shown on Attachment 04

Racks shown on Attachment 03, Drawing 6, “Building 103 communications rack layout (sic)”.

Pull-boxes on interior and exterior of room 108A

To be performed by the contractor. See responses to question 30, 128, & 129.

QUESTION 105:

Please identify all components required in the racks colored red on Attachment 03, Drawing 6, “Building

103 communications rack layout (sic)” (ISP, ITN, OSP, Circuits, and Reserved).

20A/120V/L5-20R, (ITN) 60A/208V/hardwired, (ISP, OSP, Circuits, Reserved) 30A/120V/L5-30R, QUESTION 106:

Please confirm SOW item 4.2.5 CRAC is designed, provided, and installed by contractor.

Yes

QUESTION 107:

Please provide a schedule of equipment and indicate who designs, provides, and installs each item, for anything not mentioned in three previous questions.

Equipment associated with the hangar is the responsibility of the contractor. No other equipment other than those listed in the spreadsheet provided as part of the solicitation will be provided by the

Government as GFCI. No other equipment items are anticipated as part of this project at this time.

QUESTION 108:

SOW Item 4.3.3.1.4 states, “provide and install a pull box for every two 90 degree bend (sic)”. Please confirm requirement is for a pull box in every other 90-degree bend.

Yes. This is in accordance with TIA standards.

QUESTION 109:

Attachment 3, Drawing 2, “Building 409 Exterior” shows a new pull box and a new ladder above that. Is the existing ladder to be replaced? What is the interaction and/or attachment between the ladder and the pull box?

Yes. The ladder is being removed and replaced as part of another project to repair the roof.

QUESTION 110:

Attachment 3, Drawing 1, “OSP hand-hole and conduit” shows four (4) new 4” conduits going into

Building 409, room 108A and then into room 103. SOW Item 4.4.2.1.2 states, “install pathway from proposed handhole (CHH411) to communications closet (108A) and then to communications room

(103). Attachment 04 does not indicate this pathway. Please confirm this pathway is required.

Install new conduit from existing handhole CHH409 to new handhole to be installed (CHH411) with conduit to room 108A. Separate conduit to be installed from existing manhole CMH409 to room 103.

QUESTION 111:

Attachment 3, Drawing 1, “OSP hand-hold and conduit” shows a blue line running from the proposed new 4’x4’x4’ handhold (CHH 411) into building 403. Note on this line states “can be installed as part of

403 renovation.” Please state clearly if this is or is not part of this contract.

Conduit to Bldg 403 is not part of contract (blue line to Bldg 403).

QUESTION 112:

Attachment 3, Drawing 3, “Building 409 Layout” states “door may need removed/replaced with drywall if determined to be not needed by 179 CES”. Please state clearly if this work is part of this contract.

Door between Room 105 and Corridor 107 to be deconstructed and blocked in. Double doors to be installed from Room 105 into hangar bay.

QUESTION 113:

Attachment 3, Drawing 3, “Building 409 Layout” states “double doors may need to be installed to allow

TSCIF electrical/UPS equipment into room 105”. Please state clearly if this work is part of this contract.

See response to question 111.

QUESTION 114:

Attachment 3, Drawing 4, “backboard and ground” shows new ¾ FRT plywood on the Southeast (per compass) wall of Room 103 and existing ¾” FRT plywood on small portion of the Northeast wall of Room

103. SOW Item 4.2.6.1.4 states “install Fire-resistant-treated (FRT) plywood on South & East wall of

Room 103”. Please clarify where to install FRT plywood, and include height values.

Install FRT to 9-ft or at ceiling height on walls between Rooms 102 and 103, and Rooms 103 and 105.

QUESTION 115:

Attachment 3, Drawing 5, “room 103 Cable Tray” shows cable tray around the perimeter, and 1 run in each direction across the room. SOW Item 4.3.3.1.1 states, Cable tray system installed around perimeter of room 103; 105, and; in perpendicular paths in the center of rooms”. Please confirm that a layout of cable trays similar to that shown in Drawing 5 is intended for room 105 as well (perimeter and perpendicular paths in the center).

Install cable trays in accordance to Attachment 3, Drawing 5.

QUESTION 116:

Attachment 3, Drawing 5, “room 103 Cable Tray” shows 2 conduits between rooms 103 and 108A, 1 conduit between rooms 103 and 105, 4 conduits between rooms 103 and 102, and 1 conduit between room 103 and TSCIF in room 101. Only the conduit between room 103 and the TSCIF in room 101 is mentioned in the SOW; however, SOW Item 4.3.3.1.3 states to provide TWO such conduits. Attachment

03, Drawing 9, “conduit to TSCIF” states “will need two conduit from comm room 103 to comm room 1 in TSCIF.” Please clarify quantity, size, and end-points of all conduits required by this contract.

The existing conduits in room 102 remain in place—no other work is to be performed in room 102.

Four new conduits will be installed from the existing manhole (CMH409) directly into room 103. These will be in lieu of the conduit from room 102. One conduit will be installed between room 103 and 105.

One conduit will be installed between room 103 and the RLF’s room 101. The two existing conduit between room 108A and 103 are to remain. An additional conduit will be installed between room

108A and 103. All conduits are to be 4-inches.

QUESTION 117:

Please confirm there is no work required in Mechanical (102) per Attachment 03, Drawing 7, “room

102”.

Correct. See response to question 115.

QUESTION 118:

Attachment 03, Drawing 8, “Room 108A” shows 2 conduits of unspecified size originating from the new pull box inside room 108A and presumably terminating in room 103. It appears that “Conduit 1” will connect with one existing conduit in room 108A that presumably terminates in room 103. It appears that “Conduit 2” cannot connect to other existing conduit and a new conduit must penetrate the walls and terminate in room 103. SOW 4.4.2.1.2.2 states, “install four (4) 4-inch diameter conduits from pull box in room 108A to room 103”. Please clarify quantity, size(s), and terminating end-points for new conduit(s) required originating in new pull box in room 108A.

See response to question 115.

QUESTION 119:

Please provide firestopping requirements for new and existing penetrations in rooms where work is performed.

Materials shall be supplied from a single domestic manufacturer, consisting of commercially manufactured, asbestos-free, nontoxic products FM APP GUIDE approved, or UL listed, for use with applicable construction and penetrating items. Firestop systems shall be approved with “F” or “T” rating at 1 hour.

Materials shall have a flame spread of 25 or less, and a smoke developed rating of 50 or less, when tested in accordance with ASTM E84 or UL 723. Material shall be an approved firestopping material as listed in UL Fire Resistance or by a nationally recognized testing laboratory.

QUESTION 120:

Attachment 03, Drawing 1, “OSP hand-hole and conduit” shows “(4) 4” conduit that connects to

CHH403” between new handhole CHH411 and CHH40_ (the final digit is not legible). SOW Item 4.4.2.1.3 states “install pathway from CHH411 to existing handhole by Bldg 403 (CHH 409)”. Please confirm these two items are the same work.

Yes. They are the same. Pathway from CHH 409 (existing) to CHH 411 (proposed) to Bldg 409.

QUESTION 121:

Please confirm the red dashed line and all of the orange lines shown on Drawing 1, “OSP hand-hole and conduit” of Attachment 03 are not in this contract.

The orange lines are existing communication conduits outside the scope. The red line is the proposed conduit that IS part of the contract, to include the proposed handhole CHH411.

QUESTION 122:

Are we to assume the existing high voltage feeder is capable of providing power to the new 2,500 KVA transformer?

See response to Question 39

QUESTION 123:

What is the KW rating and voltage of the existing generator?

See response to Question 39

QUESTION 123:

What is the amperage of the existing auto transfer switch?

See response to Question 39

QUESTION 124:

Is the auto voltage regulator and UPS system existing?

See response to Question 39

QUESTION 125:

Are we to provide lights and power outlets in the new rooms 103 and 105? If so, what receptacles are required?

See response to Question 39

QUESTION 126:

Will the RLF need to be tied into the existing building fire alarm system?

See response to Question 39

QUESTION 127:

Will Advantor, Seimens, Johnson Controls, and Monaco be involved in this contract? If so, please provide adequate contact info for each.

The systems for the RLFs are independent and not applicable to this project.

QUESTION 128:

Please see attached cut sheet for a voltage regulator & review comments/questions from vendor below & let us know if this is what’s needed or if we need to go with something else – also please respond if the range of voltage spikes is known.

The concern we are trying to mitigate is to protect the data processing systems and CRAC units from phase drops that have been occurring with more regularity at the installation. At present, the range of voltage spikes is unknown.

QUESTION 129:

Is there a possibility that we install a voltage regulator like this type but just for the mission critical side?

This would lower cost & possibly lower the lead time for this equipment as well.

Yes.

QUESTION 130:

Attachment01_SOW, 4.2.1.3 states to “Remove existing ceiling grid…in communication room.” Please confirm that Room 108A per Drawing 3, Building 409 Layout, is the “communication room” as that room currently does not have a ceiling grid.

This is in reference to room 103A and 103B.