832571250 PWS Final.docx

PERFORMANCE WORK STATEMENT (PWS)

Award

Contract Number:

Task Order Number:

Contractor Name

1. Contracting Officer’s Representative (COR).

a. Primary COR. See DITCO Additional Text G1 - Points of Contact

b. Alternate COR. See DITCO Additional Text G1 - Points of Contact

c. Property Administrator N/A, No Government Furnished property is identified.

2. Contract Title. Ford Island Raised Floor and Computer Room Air Handling (CRAH) Upgrade

3. Background. Defense Information Systems Agency (DISA) datacenters provide routine and mission-critical computer processing resources and support to numerous government agencies on a 24 hours-per-day, seven days-a-week basis. DISA’s operational goal is to provide high availability to all supported programs and workloads at energy-efficient Tier III redundant datacenters. The existing raised floor panels and SRG are at end of life, have inadequate load capacity, and require replacing. The existing Computer Room Air Handler (CRAH) units are also at end of life, do not provide adequate room cooling, and require replacement.

The Hawaii Data Center (HAW) requires the following upgrades.

a. Computer Room 164:

1. Replace and upgrade the CRAHs.

2. Replace and upgrade the raised access floor.

3. Replace signal reference grid (SRG) for grounding

4. Add Aisle Containment components

b. Hallway 167: Replace and upgrade raised access floor

c. Room 180A: Replace and upgrade raised access floor

4. Objectives: This project will replace and upgrade the raised access floor in computer room 164, including SRG, replace and upgrade the existing CRAH units in computer room 164, add aisle containment to computer room 164, and replace the raised access floor in hallway 167 and room 180A. All new access floor panels shall be replaced with new concrete core or solid metal panels and the access flooring structure shall be upgraded with new stringers in a basket weave configuration. Lifting and lowering of existing racks shall be performed as part of this contract for the removal and installation of the raised access floor panels.

5. Scope. The work involved with this project is described in the Drawings, Specifications, and Appendices that are issued as part of the contract in support of a complete solution.

5.1. Task 1: Project Management and General Requirements.

5.2. Task 2: Replace Raised Access Floor System in Computer Room 164, Hallway 167, and Room 180A.

5.3. Task 3: Replace Signal Reference Grid (SRG) for Grounding in Computer Room 164.

5.4. Task 4: Replace Computer Room Air Handler (CRAH) Units in Computer Room 164.

5.5. Task 5: Controls for Replacement CRAH Units.

5.6. Task 6: Electrical for Replacement CRAH Units.

5.7. Task 7: Aisle Containment in Computer Room 164.

5.8. Task 8: Project Close-Out.

6. Performance Requirements.

6.1. Task 1 – Project Management and General Requirements.

The contractor shall develop a detailed project schedule, investigate existing conditions, conduct weekly project status meetings, prepare, and submit shop drawings and product data submittals for approval by the Government.

6.1.1. Subtask 1 – Project Schedule. The contractor shall provide a project schedule developed using Microsoft (MS) Project or similar program. Schedule shall use the ‘critical path’ method and identify all milestones; the schedule shall include start date, submittal dates, key milestone dates, and completion dates as a minimum. The project schedule shall incorporate phasing of the project execution. The project schedule shall be reviewed at weekly progress meetings.

6.1.2. Subtask 2 – General Requirements

6.1.2.1. Project Meetings

6.1.2.1.1. Project Kick-off Meeting. The contractor shall conduct a project kick-off meeting within 2 weeks of contract award. At a minimum meeting attendees shall include the contractor, site POC, and Primary COR. On-site kick-off meeting is preferred.

6.1.2.1.2. Project Status Meetings. The contractor shall conduct recurring weekly project status meetings. During each meeting, the contractor shall provide schedule update, review any open items from the previous project status meeting, and record meeting minutes for distribution.

6.1.2.2. Submittals

6.1.2.2.1. The contractor shall submit all electronic deliverables to the Government in text searchable format for review and approval.

6.1.2.2.2. Unless otherwise stated in this PWS, the contractor shall allow 10 business days for the Government to review and approve each deliverable associated with this contract. For the purposes of this PWS, 20 December through 5 January and all Federal holidays are not considered working days.

6.1.2.2.3. No Materials to be Ordered without Approval - Material submittals (product/technical data, materials specifications, etc.) shall be provided by the contractor for Government review and approval prior to the contractor procuring the material. All original manufacturer safety data sheets (SDSs) shall be submitted and approved prior to the contractor procuring the material. SDSs shall be available on site prior to bringing the associated material on site.

6.1.2.2.4. Product Data Submittals. Product data shall meet the salient features as stated for each equipment and component as required in this PWS. The contractor shall submit product data sheets for each equipment and component for Government approval prior to procurement.

6.1.2.3. All items procured by the contractor shall be new Original Equipment Manufacturer (OEM) standard products in undamaged condition complete with accessories and instructions. Refurbished or used items are not permitted.

6.1.2.4. Investigate Existing Conditions. The contractor shall perform site visits after contract award and review the concept drawings to gather information on existing conditions and have a complete understanding of existing conditions and required work. The contractor shall investigate and verify all existing conditions, including working conditions, access, and other items/systems associated with the scope of the contract. DISA’s existing drawings are available to the contractor, but these drawings should not be viewed as complete and accurate. The contractor shall field verify all existing conditions prior to providing submittals.

6.1.2.5. The contractor shall install all equipment in accordance with the manufacturer’s recommendations.

6.1.2.6. Shop Drawings.

a. All drawings submitted by the contractor shall conform to the USACE Engineer Research and Development Center A/E/C CAD Standard Release 6.1. Models shall be drawn in model space at full scale (1:1). Drawings shall be in paper space, sized at ANSI D, placed in the DISA Title Block. All pdf drawings submitted shall be text searchable. All measurements on project drawings shall be in United States Customary System (USCS) units.

b. The contractor shall prepare and submit detailed drawings and equipment schedules for Government review and approval.

c. The contractor shall submit a complete set of redline drawings in AutoCAD® compatible (current .dwg format as of date of contract award) and electronic format (pdf) as part of this project prior to final project close-out. Concept drawings are available for contractor use in AutoCAD® format. Submittal requirements are detailed in paragraph 6.1.2.2.

6.1.2.7. The contractor shall acquire all mandatory local, state, and federal permits.

6.1.2.8. Protection of Existing Systems

6.1.2.8.1. The contractor shall protect existing systems during PWS task activities.

6.1.2.8.2. The contractor shall protect the existing Very Early Smoke Detection Apparatus (VESDA) System, grounding grid, cable tray, and any other systems encountered under the raised access floor. These systems must remain operational during this project. The contractor can disconnect supports for under floor systems to perform work associated with this PWS. The contractor shall provide temporary supports for all under floor systems disconnected from permanent supports. The contractor shall reinstall/reattached permanent supports as soon as associated work requiring support removal is completed.

6.1.2.8.3. The contractor shall maintain all existing finishes to pre-installation condition.

6.1.2.8.4. The contractor shall use floor protection such as plywood or Masonite panels when delivering and installing equipment and materials to distribute equipment weight and prevent damage to building floor surfaces (e.g., carpeting, laminate, raised access floor panels). The contractor shall cover any open cutouts with material of sufficient strength to support the loads to be encountered crossing the floor area. The contractor shall maintain protection until the raised access floor system is accepted.

6.1.2.8.5. The contractor shall reinstall any floor tiles that have been removed at the end of each workday. Contractor shall ensure the area is safe for use by site personnel.

6.1.2.8.6. If any hazards must remain – mark and barricade the area to comply with OSHA/Safety requirements, and to keep personnel from entering the area. If any hazards must remain – coordinate markings, barricades, walkway requirements and DISA operational issues with DISA Site POC and Primary COR, 5 working-days in advance of hazards being allowed to remain.

6.1.2.9. The contractor shall replace defective items procured as part of this contract and repair damage caused to the facility structure or equipment due to work associated with this contract at contractor expense.

6.1.2.10. Cleaning.

6.1.2.10.1. The contractor shall clean work areas and remove project debris from inside the building daily. The contractor shall ensure no dust is allowed on or in the rack enclosures.

6.1.2.10.2. The contractor shall remove all existing debris and empty cable tray in room 164, including supports, from below the raised access floor as part of the underfloor cleaning in the areas within project scope.

6.1.2.10.3. Vacuums:

a. The contractor shall provide vacuums equipped with High Efficiency Particulate Air (HEPA) filtration systems, removing all dust and dirt from the floor and sub-floor areas. Vacuums shall be capable of capturing particles as minute as 0.3 microns at a 99.97% efficiency rating.

b. The contractor shall clean or replace vacuum filters at the end of each working day.

c. The contractor shall inspect/start vacuums outside the building each morning, before use, to ensure the integrity and cleanliness of the filtration system.

d. The contractor shall fit all vacuums with Ground Fault Current Interrupter (GFCI) protectors and will never be plug in under the raised access floor or to power strips inside the IT racks. Only designated power outlets will be utilized when performing decontamination functions.

6.1.2.10.4. The contractor shall use tack pads at work area entryways to prevent dust from being carried in and out of work areas by people’s feet. Tack pads shall be replaced daily during work associated with this PWS.

6.1.2.10.5. The contractor shall install dust barriers to contain dust to the area of project work. This includes sealing of all mechanical diffusers and return grilles in the area of work to minimize the spread of debris into the IT racks and mechanical ventilation systems. The contractor shall describe how dust containment will be accomplished so that IT equipment is not affected. The Government has the right in the contract to ask the contractor to improve the dust containment before and during installation. The contractor shall keep the work area clean while work is occurring; completely clean the work area at the end of each workday; and maintain dust barriers in good order throughout installation of new work.

6.1.2.10.6. The contractor shall clean the floor, including the structural concrete subfloor, during the performance of this project.

a. Any existing debris and debris created during work associated with this PWS shall be removed from both the raised access floor and subfloor at the end of each work day.

b. When cleaning the access floor, the contractor shall not permit seepage of cleaner between individual panels. Cleaning of ferrous surfaces must be in accordance with FS TT-C-490.

6.1.2.10.7. The contractor shall remove and properly dispose of all debris off site in an environmentally safe manner.

6.1.2.11. Work Noise – Installation noise shall be limited to 85 decibels (dBA) or less during normal working hours (0700 to 1600). The contractor shall schedule work outside of normal working hours with Primary COR- when performing work with noise in excess of 85 dBA.

6.1.2.12. Hazardous Condition (HAZCON) Notification:

The contractor shall provide notification to the Primary COR of all potential HAZCONs to describe when the facility is operating in a decreased state of reliability or operational ability. It is permissible for the contractor to intentionally place the site in a HAZCON to support work outlined under this contract. This is with the understanding that the contractor shall first fully coordinate and seek approval with the Primary COR before proceeding with any work that puts the site in a HAZCON.

6.1.2.12.1. HAZCON is defined as a condition in which the normal, alternate, backup, or redundant power source or mechanical equipment is not available, but power and cooling is not interrupted to the load. It is therefore not a true outage at the load, although it may be a partial outage of one bus, circuit, mechanical system, etc.

6.1.2.12.2. The contractor shall provide a request and receive approval for the HAZCON at least 45 calendar days prior to the HAZCON event. The possibility always exists that an approved Authorized Service Interruption (ASI) can be canceled at the last minute due to mission requirements. HAZCONs may only be allowed to occur on weekends or at night.

6.1.2.12.3. The contractor shall ensure that all HAZCONs are clearly noted in the equipment installations’ sequence of events, i.e., Method of Procedure (MOP), etc.

6.1.2.12.4. An approved MOP shall be required for all equipment connections to the existing operational infrastructure and any interruption of service for any mechanical or electrical equipment. A MOP is step by step, in depth, description of a work item that needs to be completed. The contractor is required to develop a MOP for each required instance and submit to the Government for review and approval. The Government has the discretion to approve/reject MOP's for any work required. The Government shall have 30 days to review each MOP.

6.1.2.12.5. HAZCONs that require an Authorized Service Action (ASA), or ASI shall be accompanied by a contractor developed MOP detailing step-by-step sequence of events that address safety, operational availability, and coordination procedures. MOPs shall be reviewed and approved by the Government in advance of submission with the ASI request or equipment removal/installation.

1. Include mitigations steps to avoid disruption of site operations.

2. The phasing sequence shall align with the proposed project schedule, allow for continuous operation of IT racks, and limit the number of open floor area to maintain cooling to the IT racks and personnel access to the data center rooms and corridors.

3. Limit the number of open floor areas to maintain cooling to the racks. Temperature of the computer room shall not exceed 75°F during the duration of the work unless approved by the Primary COR.

4. Limit the size of open floor areas to prevent the existing floor from shifting, as the existing floor is a floating floor.

5. Limit the open floor area in corridors to allow DISA personnel access to all areas within the scope of this project.

6.1.2.13. Hot Work Permit. If any hot work is desired, contractor shall request the use of hot work to the Primary COR and submit a hot work permit for Government review and approval.

6.1.2.14. Lock-Out Tag-Out (LOTO) Plan – The contractor shall submit LOTO plan for Government’s review and approval prior to proceeding with associated work (mechanical/electrical).

a. All work that requires the opening of electrical equipment is classified by DISA as work on or near energized equipment, and any person associated with this work must comply with Appendix C - Electrical Safety Program. The contractor shall ensure that this electrical safety requirement is included in the installation documents.

6.1.2.15. Buildings will be occupied during performance of work under this Contract.

a. The contractor shall take precautions to ensure no computing equipment will be taken offline (power or IT communication loss) during the performance of this project.

b. The contractor shall take precautions to ensure facility personnel have access within the buildings and life safety egress routes are not blocked.

6.1.2.16. The contractor shall label equipment, pipe, and conduit in accordance with Appendix B (DISA Labeling Standard).

a. Equipment Unique Identification Numbers (UIDs) are determined by DISA based on initial SEC (systems, equipment, and components) spreadsheet submission (refer to Appendix H). Equipment type, power source, capacity, and location for each new SEC are the only required fields for the initial SEC spreadsheet submission.

b. DISA shall provide equipment UID labels to the contractor. Any labels required for equipment in addition to UIDs shall be provided by the contractor. The contractor shall install all equipment labels.

c. The contractor shall provide and install Pipe/Conduit labels.

d. All contractor provided labels shall be submitted to the Government for review and approval prior to generating the labels.

6.1.2.17. Applicable Standards and Guidelines.

All work shall be done in accordance with the latest version(s) and/or edition(s) as of the award date of this PWS of the following codes and standards listed below. These documents are prescriptive to the execution of this PWS:

· American National Standards Institute (ANSI)

· ASHRAE 202, Commissioning Process for Buildings and Systems

· ANSI/NETA Acceptance Testing Standards (ATS)

· American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE)

· American Society for Testing and Materials (ASTM)

· Architectural Barriers Act (ABA), Americas with Disabilities Act and Architectural Barriers Act Accessibility Guidelines

· DISAI 240-110-33, Physical Security

· International Building Code (IBC)

· International Plumbing Code (IPC)

· International Mechanical Code (IMC)

· International Plumbing Code (IPC)

· Military Standard (MIL-STD-188-124B) for Grounding, Bonding and Shielding (Ref Appendix J)

· National Electrical Testing Association (NETA)

· National Fire Protection Association (NFPA)

· NFPA 70, National Electrical Code (NEC)

· NFPA 70E, Standard for Electrical Safety in the Workplace

· NFPA 101, Life Safety Code Handbook

· Occupational Safety and Health Administration (OSHA)

· TIA-942 Telecommunications Infrastructure Standard for Data Centers

· Unified Facilities Criteria (UFC)

· United States Army Corp of Engineers (USACE) Engineer Research and Development Center A/E/C CAD Standard (For more information, go to: http://www.wbdg.org/FFC/AECCAD/ERDCITL_TR12-6_r6.pdf)

· DISA Standards:

· Electrical Safety Program (Ref Appendix C)

· Signal Reference Grid for Grounding (Ref Appendix I)

6.1.2.17.1. Conflicts between codes and standards that are not specifically addressed in this PWS, the more stringent shall apply. The codes, standards, and publications most current at the date of contract acceptance shall be those referenced for system planning.

6.1.2.17.2. Technical Questions - All technical questions and/or concerns with this PWS or project after award are to be addressed and answered by the Primary COR. If there are conflicting statements, the order of precedence shall be first, the text of this PWS, second, Appendices to this PWS, and third, the standards and guidelines referenced above.

6.1.2.17.3. Substandard and non-code compliant electrical and mechanical equipment installations found during new or replacement equipment installation must be brought into compliance with applicable Life Safety and Federal Government guidelines.

6.1.2.18. Seismic Qualifications – Equipment and components must withstand the effects of a seismic event (remain in place without separation of any parts when subject to seismic forces and remain fully operational after the seismic event). The contractor shall provide all necessary bracing and supports to meet requirements for installation for the site seismic design category in accordance with IBC. The contractor shall submit seismic calculations sealed by a Professional Engineer to confirm the installation meets the seismic requirement in accordance with IBC if selected products do not have seismic ratings. Seismic calculations shall consider full load on raised access floor when replacing floor pedestals. Computer Room 164 floor layout shows maximum load requirements for use with the seismic calculations.

6.1.2.19. Additional Documentation: Provide Visit Authorization Letters (VAL) in accordance with paragraph 11.4 and Non-Disclosure Agreement (NDA) in accordance with paragraph 13.c

Deliverables:

*Standard Distribution: 1 copy of the transmittal letter without the deliverable to the Contracting Officer; 1 copy of the transmittal letter with the deliverable to the Primary COR.

6.2. Task 2 – Replace Raised Access Floor System in Computer Room 164, Hallway 167, and Room 180A.

6.2.1. Subtask 1 – Raised Access Floor Replacement Plan

6.2.1.1. The contractor shall prepare and submit a Raised Access Floor Replacement Plan. The plan shall include the following:

a. The contractor shall replace and upgrade pedestals, stringers, solid floor panels and perforated floor panels in computer room 164.

1. The contractor shall replace solid and perforated panels as shown in Appendix A, concept plan. Final installed configuration is not like-for-like.

b. The contractor shall replace and upgrade pedestals, stringers, and solid floor panels in hallway 167 and room 180A.

c. The contractor shall use phased installation and detailed description of the Method of Procedures (MOPs) to be performed for all raised access floor removal and installation activities in accordance with paragraph 6.1.2.12.4.

d. The contractor shall identify systems and processes for lifting and lowering operational IT racks to remove existing floor panels and support structure from below racks and install new raised access floor components and grounding, the protection of power connections, IT data cabling, conveyance, and control circuits, and the location of material storage and cutting areas.

e. The contractor shall ensure the plan includes, but not limited to a MOP for lifting and lowering IT racks, sequencing, Quality Control Plan, protection of existing systems to remain, building access, panel cutting area outside the raised access floor environment, location of dumpsters and contractor work trailers.

6.2.2. Subtask 2 – Raised Access Floor System

6.2.2.1. The contractor shall procure new raised access floor pedestals, stringers, and floor panels which meet the salient features detailed in Appendix D, Rigid Grid Access Flooring

6.2.2.2. The contractor shall submit manufacturer installation instructions for all raised access floor panels, stringers, and pedestals for Government review and approval.

6.2.2.3. The contractor shall submit manufacturer safety data sheet (SDS) for adhesive used to attach pedestals to the concrete subfloor for Government review and approval.

6.2.2.4. The contractor shall submit manufacturer high pressure laminate (HPL) standard color options for DISA selection and approval.

6.2.2.5. The contractor shall confirm square footage of raised access floor areas and actual floor system component count for each area prior to procurement. The following table shows and estimated number of floor panels, pedestals, and stringers required for replacement and required spares.

* Spares shall be provided for future use by the government. Floor panels spares shall be provided on pallets and only contain a single panel model number.

6.2.3. Subtask 3 – Floor Penetration Seals

The contractor shall procure and install seals for all penetrations in the replacement raised access floor using either grommets or air-dams:

6.2.3.1. Grommets

6.2.3.1.1. The contractor shall use grommets for all IT rack penetrations and other larger penetrations.

6.2.3.1.2. Grommets shall include the following features:

a. Brush seal

b. 2-part flush mounted

1. Grommets may be cut in half when a 2-part grommet is not available from the manufacturer for a specific size.

c. Upsite Koldlok 3030, or Upsite Koldlok 1010 (cut in half) are acceptable grommets. The Upsite Koldlok example for acceptable grommets does not limit the grommet size. Similar flush mount 2-piece grommets of the appropriate size shall be procured and installed by the contractor.

6.2.3.1.3. The contractor shall ensure each grommet fits and seals the tile cutout.

6.2.3.1.4. Existing brush grommets meeting these requirements and in like-new condition may be reused.

6.2.3.2. Air Dams

6.2.3.2.1. For small penetrations where grommets cannot be used, the contractor shall seal the gap between the panel cutout and the component penetrating the raised access floor with air dams or sealant which will prevent pressurized air from flowing from below the raised access floor.

6.2.4. Subtask 4 – Raised Access Floor System and Installation

6.2.4.1. The contractor shall submit installation drawings showing the following for Government review and approval:

a. Location of panels

b. Layout of supports, panels, and cutout locations

c. Sizes and details of components

d. Details at floor perimeter and height above structural floor

e. Details of bridges used to install a pedestal above an existing obstruction

f. Lateral bracing

g. Typical cutout details

h. Gasketing, perforated panels

i. Description of factory coating / floor finishes

6.2.4.2. Some existing systems are attached to the existing pedestals. The contractor is responsible for detaching from the existing pedestals and reattaching to the new pedestals, taking care to not damage the existing systems.

a. These systems include but are not limited to: SRG, Very Early Smoke Detection Aspirator (VESDA) system pipes, electrical power conduits and connections, and Building Automation System (BAS) cabling.

b. The Signal Reference Grid (SRG) for grounding is attached to both the existing pedestals and the active IT Racks. The SRG shall be replaced as part of this project in accordance with paragraph 6.3.

6.2.4.3. The contractor shall lift and lower existing IT racks and other equipment as required for the removal and installation of the raised access floor panels, pedestals, and stringers.

a. There are approximately 26 IT racks and other equipment sitting on top of the raised access floor in Room 164 at the time this PWS was developed.

b. Where support stands are used (all Computer Room Air Handlers (CRAHs)), the equipment on the support stands do not require lifting. The raised access floor shall be placed around the support stands.

c. The contractor shall lift and lower all active IT racks and other equipment installed directly on the raised access floor for the floor system replacement.

d. All IT racks and other equipment shall remain operational throughout the upgrade process. The contractor shall take precautions to ensure no computing equipment will be taken offline (power or IT communication loss) during the floor upgrade process.

e. IT racks are connected with both power cables and IT cables via cable tray above and below the raised access floor.

f. The contractor shall ensure each operational equipment can be lifted while keeping the equipment operational prior to and during any lifting/lowering activities.

6.2.4.4. During the installation process, the contractor shall clean the structural concrete sub-floor in accordance with paragraph 6.1.2.10.

a. The contractor shall pick up all existing loose debris and other trash under the raised access floor.

b. The contractor shall vacuum under the raised access floor as the floor is replaced.

c. The contractor shall mop and wipe down the under access floor space with damp mop and/or cloths. Rinse mop and cloths frequently. Do not use excesses water, mop/cloth shall not be dripping water.

6.2.4.5. The contractor shall ensure all locations where full floor panels do not fit shall have stringers along all original panel edges and pedestals at all corners of the floor panel.

a. At locations where the new floor panel shall be installed adjacent of an existing floor panel, the original floor tile, stringer and support shall be retained. The contractor shall ensure both the existing and new floor panels are installed with 4 pedestals as support and stringers on at least 3 of the original panel edges. The existing floor panels are Global IFS Teccrete TC 2500 with beige starlight 1/16 inch thick high pressure laminate (HPL), it is acceptable to match or use a different floor panel, pedestal, and stringer as long as the new components meet the salient features required by this contract and where the new floor panels and existing floor abut is flush and aligned.

b. The contractor shall replace the substructure and floor tiles in computer room 164, hallway 167, and room 180A as shown on the Appendix A concept plans.

6.2.4.6. The contractor shall ensure all locations where existing equipment prevents floor pedestals from being attached to the floor (ie, pipe routed in the location where a pedestal is required) shall use a bridge to ensure all corners of the floor panel is supported by a pedestal.

6.2.4.7. Cutting of Floor System Components

a. The contractor shall perform all cutting of floor system components outside of the raised access floor environment to avoid dust and debris near the IT equipment.

1. When a floor panel cannot be removed and the equipment cannot be disconnected (ie, conduit, pipe, IT rack penetrations that are not edge cuts), then the contractor shall perform the floor panel cut in place with the simultaneous use of a HEPA vacuum in accordance with paragraph 6.1.2.10 and protect existing penetrations (cable, pipe, conduit).

b. The contractor shall perform center cuts in floor panels in accordance with the manufacturer’s recommendations when possible. Edge cuts are only permitted when penetrations cannot be disconnected (ie, conduit, pipe, active IT racks). If IT racks are not active and can be disconnected, DISA will disconnect and reconnect the IT rack cables, and the contractor shall use a center cut tile.

6.2.4.8. The contractor shall perform the raised access floor system removal and replacement in incremental sections in accordance with the Raised Access Floor Replacement Plan (paragraph 6.2.1) to minimize disruption of temperature-controlled climate, potential existing floor shift, and DISA personnel access in the data center or through corridors.

6.2.4.9. The contractor shall ensure the finished raised access floor is level and meets tolerance requirements (Appendix D paragraph 2.2.1.1.a-2.2.1.1.d). The contractor shall use a laser leveling device to ensure the floor is level and floor tiles are aligned.

6.2.4.10. The contractor shall seal all gaps and cutouts in the floor, preferably with brushed grommets.

6.2.4.10.1. The contractor shall use flush mounted brushed grommets (ref paragraph 6.2.3.1) for all IT rack and other floor penetrations. The following table estimates the required number of grommets for proposal purposes:

Spares

*IT racks either empty or fully disconnected do not require tile cuts or grommets. For purposes of this PWS, assume all IT racks are connected and operational.

6.2.4.10.2. Where grommets cannot be used, the contractor shall install air dams (ref paragraph 6.2.3.2) for small tile cuts, such as around conduits.

6.2.4.11. The contractor shall remove and properly dispose of all existing raised access floor system components off site in an environmentally safe manner to include floor panels, stringers, pedestals and bracing, all existing attachment items, such as screws, bolts and clips, wall base, grommets, and other floor air dams/sealant which were removed and not reused.

6.2.5. Subtask 5 – Procure and Install Wall Base

6.2.5.1. The contractor shall remove and replace the wall base along the perimeter walls and columns to match existing.

6.2.5.2. Wall base shall be thermoplastic rubber (TPR). Adhesive shall be an acrylic adhesive, pre-applied by the manufacturer. Color shall be selected by DISA from the manufacturer’s standard color selections.

6.2.5.3. The contractor shall use care during the removal of the existing wall base to minimize damage to the walls and columns.

6.2.5.4. The contractor shall install wall base in lengths no less than 3 feet unless the straight surface length is shorter than 3 ft.

6.2.6. Subtask 6 – Lifting Devices

6.2.6.1. The contractor shall provide a minimum of one of each of the following at project turn-over: suction cup lifter with extended handle, j-hook claw lifter with extended handle.

Deliverables:

*Standard Distribution: 1 copy of the transmittal letter without the deliverable to the Contracting Officer; 1 copy of the transmittal letter with the deliverable to the Primary COR.

6.3. Task 3 – Replace Signal Reference Grid (SRG) for Grounding in Computer Room 164

6.3.1. Subtask 1 – General Requirements

6.3.1.1. The contractor shall upgrade the SRG under the raised access floor by replacing the existing legacy grounding grid with the installation of new grounding cable to the new access flooring system in accordance with the Signal Reference Grid for Grounding specification (Appendix I).

6.3.1.2. The contractor shall prepare and submit an Installation Plan and Testing Plan for the electrical grounding system for a complete SRG complying with the requirements of IEEE Section 1100 Multi-point grounding, Signal Reference Grid for Grounding (Appendix I), the MIL Standard 188-124B (Appendix J), and the concept drawings (Appendix A). The proposed installation plan shall include connecting all existing IT racks to the new SRG system, grid layout diagram, and product data sheets for all components used. Testing shall include the following:

a. Continuity between the master ground bar and at least 10% of the connection points.

b. Then, continuity between test point to point across the entire SRG including the perimeter conductor where each SRG is connected, testing a minimum of 10% of the connection points and including perimeter test point to opposite perimeter test point.

6.3.1.3. Contractor shall install a new SRG independent of the building ground systems for the electrical equipment. SRG shall connect back to the SRG ground bus with bonding of the SRG directly to building steel.

6.3.1.4. Contractor shall remove the old legacy grid ground system and properly dispose of the existing grounding materials after completion of the new SRG in the computer room. If other electrical systems or equipment have been tied to the legacy grounding system, the systems or equipment shall be provided with proper grounding, as part of this contract, these shall not be tied to the new SRG.

6.3.2. Subtask 2 – Testing

6.3.2.1. SRG Test Notification. The contractor shall notify DISA at least 15 working days prior to performing the SRG test. DISA approval of test date is required and may cancel testing at any time between notification and testing.

6.3.2.2. SRG Test Report. Contractor shall prepare and delivery a final SRG Grounding Test Report following their Testing Plan to ensure continuity of the SRG per Appendix I - SRG for Grounding, that will result in a testing report for grounding connectivity to ensure it is less than 1.0 ohms.

Deliverables:

*Standard Distribution: 1 copy of the transmittal letter without the deliverable to the Contracting Officer; 1 copy of the transmittal letter with the deliverable to the Primary COR.

6.4. Task 4 – Replace Computer Room Air Handler (CRAH) Units in Computer Room 164

6.4.1. Subtask 1 – General Requirements

6.4.1.1. The contractor shall submit shop drawings detailing installation plan, maintenance instructions, and installation instructions for all equipment, components, and materials required to install the CRAHs detailed in paragraph 6.4 for Government review and approval prior to procurement.

6.4.2. Subtask 2 – Install Procure and Replace CRAHs in Room 164

6.4.2.1. The contractor shall remove existing CRAH_1-A-01 and CRAH_1-B-02 including stands and procure and install replacement CRAHs

a. Replacement shall be phased to ensure at least 1 CRAH unit is operating at all time in room 164.

b. The contractor shall ensure the computer room does not to exceed 75°F and 60% humidity during CRAH replacement.

6.4.2.2. The contractor shall procure CRAHs which meet the salient features detailed in Appendix E, Computer Room Air Handling Units.

a. New CRAHs shall be labeled as CRAH_1-A-01, CRAH_1-B-02.

6.4.2.3. The contractor shall install the CRAHs in accordance with manufacturer’s recommendations, as shown on the concept drawings (Appendix A), and as detailed below:

a. All wetted materials shall be rated for the CHW water chemistry: between 120 ppm CS-4619.

b. Dielectric unions shall be used when connecting dissimilar metals.

6.4.2.4. The contractor shall replace insulation removed from chilled water lines to support the installation of the new CRAHs. The contractor shall replace and install closed cell elastomeric insulation in accordance with ASHRAE standard and Appendix B, DISA Labeling Standard.

6.4.2.5. The contractor shall replace each CRAH condensate line. Replacement condensate line shall meet the following:

a. Routed to the nearest floor drain

b. Continuously sloped down

c. Upsized 1/2" larger than condensate connection at CRAH

d. Constructed of stainless steel

6.4.2.6. The contractor shall notify the Government at least 15 calendar days prior to date connections to existing systems are planned. (Chilled water and electrical).

6.4.2.7. Contractor shall provide one complete spare filter bank set per CRAH to DISA prior to final acceptance testing.

6.4.2.8. The contractor shall reuse existing conduit. Cabling may be reused if rated for the new CRAHs. Replacement cabling shall be in accordance with paragraph 6.6.1, for both dual power feeds.

6.4.2.9. The contractor shall connect the CRAHs to the existing BAS in accordance with paragraph 6.5.

6.4.3. Subtask 3 – Test CRAH Installation

6.4.3.1. The contractor shall notify DISA at least 15 working days prior to performing any tests. DISA approval of test date is required and may cancel testing at any time between notification and testing.

6.4.3.2. Documentation for Tests. Submit forms for documenting the test results and a step-by-step test procedure each test for Government review and approval prior to performing the testing.

6.4.3.3. Pressure Test: The contractor shall verify no leaks in CHW lines using air prior to introducing CHW to the lines.

a. Submit test conditions and results of air pressure testing.

6.4.3.4. The contractor shall perform Integrated Systems Testing of the CRAHs:

a. The CRAH operation and controls shall be tested to validate control methodology and cooling performance.

b. Adjust setpoints during testing to maintain CRAH return and room temperatures as required. Setpoint changes will be at each CRAH unit and BAS.

c. Integrated Systems Testing shall include all manufacturer’s recommended checks. Provide 30 day notice prior to performing integrated system testing to allow the Government to witness testing.

d. Submit Integrated Systems Testing (IST) Results, include completed forms used in the test for Government review and approval. Note, the completed test results and step-by-step tests shall be submitted as part of the O&M binders (refer to paragraph 6.7.4)

Deliverables:

*Standard Distribution: 1 copy of the transmittal letter without the deliverable to the Contracting Officer; 1 copy of the transmittal letter with the deliverable to the Primary COR.

6.5. Task 5 – Controls for Replacement CRAH Units

6.5.1. Subtask 1 – Connect New CRAHs to the Existing Building Automation System (BAS)

6.5.1.1. Existing BAS related work:

a. Interface with existing BAS shall be bi-directionally integrated into the existing Delta/Iconics Genesis 64 control system and installed by SPEC LLC.

b. The prime contractor shall hire SPEC LLC as the BAS controls contractor. SPEC LLC shall be a sub-contractor to any prime contractor bidding this project.

c. SPEC LLC POC Greg Howard (317-903-0241) and Ryan Hunter (405-317-4432).

d. The communication protocol with the existing BAS is BACnet or Modbus, in accordance with Appendix F (23 09 23.13, Minimum Technical Specifications for BACnet Direct Digital Control Systems (DDC) For HVAC) and Appendix G (25 00 00, Integrated Automation).

6.5.1.2. The contractor shall install conduit for controls in accordance with paragraph 6.6.2.

6.5.1.3. The contractor shall submit controls wiring drawings and sequence of operations for Government review and approval.

a. Sequence of Operations shall include temp, humidity, dehumidification, static pressure, CRAH lead/lag, CRAH lead/lag rotation, FCU contributions to the space(fresh air), and air flow should a CRAH or building fire system detect smoke.

6.5.1.4. The contractor shall use fiber optic cable for all communication between BAS panels.

6.5.1.5. The contractor shall ensure the BAS is modified to display and control the CRAHs and all setpoints are adjustable.

Deliverables:

*Standard Distribution: 1 copy of the transmittal letter without the deliverable to the Contracting Officer; 1 copy of the transmittal letter with the deliverable to the Primary COR.

6.6. Task 6 – Electrical for Replacement CRAH Units

The contractor may reuse existing electrical cable and conduit if rated for the new CRAH units. This paragraph details requirements if the conduit or electrical cable requires upgrading by the contractor.

6.6.1. Subtask 1 – Conductors

6.6.1.1. Existing conductors may be reused if rated for new CRAHs.

6.6.1.2. Splices are not allowed.

6.6.1.3. The contractor shall provide conductor identification/coding by factory-applied, color-impregnated insulation.

a. 208/120 volt, three-phase

1. Phase A - black

2. Phase B - red

3. Phase C - blue

b. 480/277 volt, three-phase

1. Phase A - brown

2. Phase B - orange

3. Phase C - yellow

c. 120/240 volt, single phase: Black and red

d. Grounding conductors: Green.

e. Neutral conductors: White.

1. Exception, where neutrals of more than one system are installed in same raceway or box, other neutrals color coding: white with a different colored (not green) stripe for each.

6.6.1.4. The contractor shall size conductors in accordance with NFPA 70 and other applicable documents.

6.6.1.5. The contractor shall ensure voltage drop for the circuit does not exceed 3%

a. For the purpose of determining cable size requirements, the existing CRAHs are Vertiv CW076 series.

6.6.2. Subtask 2 – Conduit

6.6.2.1. Existing conduit may be reused if rated for the new CRAHs.

6.6.2.2. The contractor shall procure and install conduit in accordance with the following:

a. Conduit shall be 3/4" minimum for conductors

b. Conduit shall be 1-1/2” minimum for fiber optic

c. Conduit type:

1. Flexible connections located under the raised access floor shall be LFMC (liquid-tight flexible metal conduit).

2. EMT (electrical metallic tubing) shall be used except where subject to physical damage.

3. RGS (Rigid Galvanized Steel) shall be used where subject to physical damage, including but not limited to within 6 feet of a walking surface.

4. All conduit shall be watertight.

d. Conduit Routing

1. Rectilinear fashion, in the most direct path feasible

2. Above suspended ceilings (preferred) or below raised access flooring.

3. Around secure perimeter walls.

4. Penetrations in secure walls shall be in accordance with either ICD/ICS 705 using existing penetrations, or DISAI 240 110-33 based on existing certification. Utilize existing penetrations.

5. Conduit on secure perimeter walls shall be surface mounted.

6. Conduit route shall be submitted and approved prior to installation.

6.6.2.3. BAS: The contractor shall color code conduit in accordance with Appendix B (DISA Labeling standard), and meet the following:

a. Conduit shall use manufacturer’s standard color. Painting is not acceptable.

b. Conduit installed in concealed areas shall be color coded.

c. Fittings, pull boxes, and hangers do not require color coding.

6.6.2.4. The contractor shall procure and bond all new metal conduits entering the computer room underfloor space to the nearest signal reference grid (SRG) conductor in accordance with paragraph 6.3.

6.6.2.5. The contractor shall ensure the distance between conduit supports meets structural calculation requirements.

6.6.3. Subtask 3 – Requirements

6.6.3.1. The contractor shall establish circuit ampacity and voltage in accordance with the manufacturer’s requirements. Power panel and circuit shall be identified by DISA once the contractor defines equipment requirements. New circuit breakers shall be provided by the contractor.

6.6.3.2. The contractor shall ensure all electrical components are UL listed.

6.6.3.3. The contractor shall submit installation instructions for proposed electrical components for Government review and approval.

6.6.3.4. The contractor shall submit circuit details on panel source and circuit, load information, circuit length, conduit type/size, and conductor type/size for approval prior to procurement.

6.6.3.5. The contractor shall submit an updated panel schedule for each panel with a new circuit for approval prior to installation. The contractor shall install the updated panel schedule when each new circuit is connected. Note, this is only required if the circuit breakers are not reused.

6.6.3.6. Electrical De-energizing equipment. No equipment is to be de-energized without prior coordination and approval from the Primary COR.

6.6.3.7. The contractor shall perform all electrical work in accordance with Appendix C (Electrical Safety Program).

Deliverables: