Attachment 1 - Specifications.pdf

SPECIFICATIONS

Table of Contents

1.0 GENERAL

1.01 DESCRIPTION OF WORK

1.02 CONSTRUCTION

1.03 CONTRACTOR USE OF PREMISES

1.04 COORDINATION AND ON SITE SUPERVISION

1.05 CUTTING AND PATCHING

1.06 CONFERENCES

1.07 SUBMITTAL PROCEDURES & WORK TIMELINES

1.08 CRITICAL SUBMITTALS:

1.09 CONTRACTOR WARRANTY

1.10 QUALITY ASSURANCE - CONTROL OF INSTALLATION

1.11 TEMPORARY FACILITIES

1.12 HAZARDOUS MATERIALS

1.13 BARRIERS

1.14 PROTECTION OF EXISTING EQUIPMENT AND EXISTING BUILDING

1.15 SECURITY

1.16 WORK HOURS

1.17 STARTING AND STOPPING SYSTEMS OR EQUIPMENT

1.18 FINAL CLEANING

1.19 PROJECT RECORD DOCUMENTS

1.20 CODES, PERMITS AND STANDARDS

2.0 PRODUCTS

2.01 GOVERNMENT FURNISHED EQUIPMENT

2.02 CONTRACTOR FURNISHED EQUIPMENT AND MATERIALS

2.03 SPECIAL TOOL RESTRICTIONS

3.0 EXECUTION

3.01 INSPECTION OF SITE BY CONTRACTOR

3.02 AIR CONDITIONING EQUIPMENT INSTALLATION

3.03 PIPING INSTALLATION

3.04 PIPE JOINT CONSTRUCTION

3.05 ELECTRICAL WORK

3.06 BUILDING AUTOMATION SYSTEM

3.07 CONTRACTOR RESPOSIBILITIES DURING CONSTRUCTION

3.08 OUTAGES

4.0 PHOTOS

4.01 EXISTING UNIT PHOTOS

1.0 GENERAL

1.01 DESCRIPTION OF WORK

A. Scope: The current CRAC unit has reached its life expectancy and is failing. Four ceiling cassettes and an outdoor compressor will replace the existing Liebert Challenger 3000 to meet the current cooling requirements.

B. Work includes but is not limited to the following:

Install temporary barrier for COVID mitigation, see note 1.01 D below.

Revise existing ceiling grid as necessary to accommodate the new ceiling mounted

AC cassettes Install new government furnished ceiling cassettes and grilles in electronics equipment room.

Field locate, excavate, fill, and pour new concrete pad for outdoor unit. Provide cold weather concrete protection during concrete curing.

Install new government furnished outdoor condensing unit, complete with wind baffles and other accessories, on new concrete pad.

Furnish and install new refrigerant piping between new outdoor units and ceiling cassettes, including refrigerant tube, manifolds, and fittings. Protect exterior refrigerant lines with carrier pipe or steel channel.

Install and test new condensate drainage system for the new AC units.

Furnish and install all components necessary for new electrical circuits, including wiring, conduit, disconnects, circuit breakers, and junction boxes. Install per FAA standard for interior electrical work and NEC.

Furnish and install new controls for AC system. Ensure new equipment can interface with existing building automation system.

Commission the new AC systems before removing the existing unit.

Remove existing refrigerant in accordance with EPA recovery requirements.

Demolish and dispose of equipment, piping, power and controls associated with existing Liebert Challenger 3000 AC unit.

Demolish old concrete pad. Fill with space with new rock to match existing.

Seal all new and existing penetrations into the building envelope.

C. The construction site is located at the Juneau Automated Flight Service Station (AFSS), Juneau, AK

D. Special COVID-19 Requirements: Due to COVID-19, the contractor will provide a temporary barrier similar to a zip wall system at the location in the main building hallway designated by the COR. The barrier will be provided with an access opening for FAA employees to access the equipment room. The location for the barrier is shown in the drawings. FAA will provide signs for the contractor to install to limit access beyond the barrier to FAA employees only. The barrier will be set up in the back of the facility for working personnel. Contractor is responsible for maintaining this barrier throughout the life of the project. This will ensure separation between contractor and critical air traffic facility personnel to reduce the risk of any human transmission.

1.02 CONSTRUCTION PHASING

A. The Contractor must coordinate work with the FAA Contracting Officer's Representative (COR) to prevent conflicts with in the operational facility. After notice to proceed is issued by the CO, coordinate with COR for onsite arrival and expected schedule including work hours and expected completion timeframe. Work must be completed within 30 days of onsite notice to proceed.

1.03 CONTRACTOR USE OF PREMISES

A. Existing Facility Operations: The AFSS is a 24 hour, 7 days per week operating facility.

Coordinate all construction activities with the COR so as not to interfere with functions of the AFSS. Plan and coordinate so normal facility operations may continue with minimum disruption or interference.

B. Maintain the jobsite and work area in a neat and orderly condition. Remove rubbish, waste, tools, equipment and materials not required for work in progress on a daily basis.

C. Access to Existing Building: Access for personnel will be through the back entrance of the facility as shown in the drawings. Work in areas other than the designated work site is not allowed.

D. Do not obstruct or close roadways and driveways unnecessarily. Coordinate, notify and make arrangements with the COR seven working days prior to date if obstruction or closure is required.

E. Confine operations, activities, storage of materials and employee parking within designated areas. These areas include where the UPS is currently staged as well as storing items in the engine generator room.

F. Water: Use existing building water system for construction purposes at no cost to the contractor. Obtain existing hose bib location from the COR.

G. Temporary Parking and Access:

1. Use the parking areas designated for the contractor and the contractor's personnel vehicles. Contractor is reminded that onsite parking is limited and additional parking will not be available.

2. Maintain existing traffic areas free of materials, construction equipment and products.

3. Notify the COR seven working days in advance of expected closures of traffic areas and expected duration. Minimize the length of closure.

4. Maintain roads, walks, and parking area in sound, clean condition. Repair or replace any portions damaged during progress of construction work.

1.04 COORDINATION AND ON SITE SUPERVISION

A. The contractor must coordinate scheduling, submittals, and work to assure efficient and orderly sequence of installation of interdependent construction elements. The contractor must have a designated (submitted and approved in writing to the Contracting Officer) representative (supervisor) on site during all phases of construction activity. This person must be responsible for insuring that the provisions of the contract are followed by all contractor and subcontractor personnel.

1.05 CUTTING AND PATCHING

A. Employ a skilled and experienced installer to perform cutting and patching new work;

restore work with new products except as noted.

B. Submit written request in advance of cutting or altering existing structural or building enclosure elements.

C. Fit work tightly to adjacent structure. Maintain integrity of wall, ceiling, or floor construction; completely seal voids.

D. Refinish surfaces to match adjacent finishes.

1.06 CONFERENCES

A. Preconstruction Conference: there will be a preconstruction conference held a minimum of seven (7) days prior to start of construction to discuss phasing and facility/contractor concerns before construction begins onsite. Representatives of the contractor and their subcontractors are expected to attend the preconstruction conference.

1.07 SUBMITTAL PROCEDURES & WORK TIMELINES

A. The contractor will submit the required submittals for approval within 30 days of contract award. Physical work onsite to be completed within 30 calendar days after issuance of Notice-to-Proceed. Closeout documents to be submitted within 30 days after completion of physical work. For all submittals other than O&M Manuals, electronic submissions are acceptable.

1.08 CRITICAL SUBMITTALS:

A. The contractor will submit the following documents to the FAA COR prior to the start of work:

1. Product data, shop drawings, materials and other relevant data for contractor provided.

2. Construction schedule

3. Company Safety Plan, which addresses COVID precautions.

4. Work plan to ensure proper cooling is maintained during construction as needed.

This can be accomplished with use of the existing Rooftop Air Handing Unit (AHU).

5. Comprehensive O&M Manuals for all system equipment including Government Furnished Equipment (GFE)

B. Construction Schedule: The schedule for this construction project must be coordinated with the COR. The schedule will highlight project activities and all phasing requirements in a Gantt or bar style chart. The contractor will highlight all anticipated outage dates in the schedule.

C. Company Safety Plan: The contractor will submit a company safety plan, which outlines the company’s internal safety policies and procedures. Safety plan will be address typical work activities associated with mechanical system cleaning, repairs, and modifications.

Work with COR to establish local emergency services contacts and review facility emergency procedures. Safety plan will address COVID-19 jobsite exposure prevention and include social distancing, mask wearing, cleaning/sanitizing frequently touched surfaces on the jobsite including door pulls, handles, push bars and surfaces).

D. Work Plan: JNU AFSS is a critical air traffic control facility containing National Airspace System (NAS) equipment which is sensitive to high ambient temperatures. The contractor must submit a work plan to demonstrate how cooling will be maintained in the facility for the duration of the project. Outages to the cooling system must be planned in advance with the COR, and kept in short duration (less than three hours).

E. Operations and Maintenance (O&M) Manuals: The contractor will submit O&M Manuals at project close out. The O&M manuals will be neat, labeled, and organized into binders. In addition to electronic copies, the contractor will provide 3 hard copies to the FAA. The O&M Manuals will be organized as follows:

1. Coversheet and table of contents

2. Sequence of operations for new system

3. Spare Parts List

4. Any prepared shop drawings by contractor

5. Commissioning/Start-up reports

6. Contractor’s warranty

7. For each piece of system equipment, including GFE

a. Product Data Sheet with accessories/options annotated

b. Manufacturer’s published O&M Data

c. Manufacturer’s warranty

1.09 CONTRACTOR WARRANTY

A. The contractor will provide a minimum of a two-year warranty on construction materials and equipment. The warranty will include a service maintenance agreement to address system performance issues, including system operation with the building automation system (BAS). The warranty period will start at FAA acceptance at the Contractors Acceptance Inspection.

1.10 QUALITY ASSURANCE ‐ CONTROL OF INSTALLATION

A. Monitor quality control over suppliers, manufacturers, products, services, site condition, and workmanship, to produce work of specified quality.

B. Comply fully with manufacturers' instructions.

C. Comply with specified standards as a minimum quality for the work except when more stringent tolerances, codes, or specified requirements indicate higher standards or more precise workmanship.

1.11 TEMPORARY FACILITIES

A. Toilet Facilities: The contractor will provide port-a-potty and hand washing facilities for contractor and contractor personnel. The AFSS bathroom facilities will not be used to limit time in the facility and exposure to critical facility personnel.

1.12 HAZARDOUS MATERIALS

A. The glycol loop water for the Liebert Challenger and the outdoor dry fluid cooler is considered HAZMAT and needs to be properly disposed of.

1.13 BARRIERS

A. A barrier will be provided inside the facility to designate the working area. This will be utilized to the maximum extent possible to ensure working facility personnel are not exposed to human transmission. See placement in drawings.

1.14 PROTECTION OF EXISTING EQUIPMENT AND EXISTING BUILDING

A. Contractor will protect building finishes from damage by using appropriate measures to protect interior and exterior finishes. The contractor will work with COR, review facility condition prior to start of work to identify areas which have preexisting stains or damage.

Contractor will be responsible for repair of finishes as a result of inadequate protection.

Refer to Execution paragraph 3.06 below.

B. The contractor will be responsible for protection and safekeeping of products and materials during the contract. A secure location for tools and materials will be coordinated with COR upon arrival on site. Lockable tool or job box is recommended. The contractor will maintain the job site in a neat and orderly condition.

C. Refrigerant recovered from the existing Liebert Challenger must be disposed of properly.

The FAA will need a “chain of custody” letter in regards to the R-22 refrigerant recovered as the agency is the legal owner of the refrigerant.

1.15 SECURITY

A. Provide a list of contractor personnel who will require access to the AFSS premises to COR prior to the notice-to-proceed date. Keep list current during project work.

B. A checkpoint at the back of the facility will be set up for workers to use with direct access to the work area. This checkpoint must include a morning temperature check, COVID-19 symptoms check and a daily sign in stating all workers are safe to complete the daily work.

C. Violators of any security regulations will be removed from the premises with the right to re-enter revocable.

1.16 WORK HOURS

A. The Contractor must coordinate work with the FAA COR to prevent conflicts with in the operational facility. The work may be done during normal business hours. Typical work hours will be Monday through Friday from 8:00 AM to 5:00 PM.

1.17 STARTING AND STOPPING SYSTEMS OR EQUIPMENT

A. Provide notification to the COR prior to start-up of each item.

B. Ensure that each piece of equipment or system is ready for operation.

C. Execute start-up under supervision of a responsible person which is a Mitsubishi certified technician.

D. Equipment Shut Downs: The FAA Facility technicians will turn off, lock out, and tag out systems. Contractor will request system shut downs from the RE three working days in advance to facilitate coordination with FAA technicians. Shut downs will be dependent on availability of the technicians. Contractor will also lockout equipment in accordance with LOTO requirements below.

1.18 FINAL CLEANING

A. Execute final cleaning prior to final inspection.

B. Clean interior and exterior surfaces exposed to view. Vacuum carpeted and soft surfaces.

C. Clean debris from site.

D. Remove waste and surplus materials, rubbish, and construction facilities from the AFSS property.

1.19 PROJECT RECORD DOCUMENTS

A. Maintain on site, one set of contract documents to be utilized for record documents

B. Record revisions to the work. Record information concurrent with construction progress, mark up redlines as work progresses, on a weekly basis. Updated AutoCAD drawings are not required. Redlines may be clearly hand marked or marked up utilizing .pdf writer.

C. Record documents and shop drawings: Legibly mark each item to record actual construction.

D. Submit documents to the COR for approval prior to final inspection.

1.20 CODES, PERMITS AND STANDARDS

A. Perform all work in accordance with the current editions of the International Mechanical Code (IMC), International Plumbing Code and the National Electrical Code (NEC).

B. In addition to the NEC, perform all electrical work in accordance with the FAA-C-1217H;

Construction Specification ELECTRICAL WORK, PREMISIS WIRING and FAA-STD-019f, Chg 3; Standard LIGHTNING AND SURGE PROTECTION, GROUNDING, BONDING AND

SHIELDING REQUIREMENTS FOR FACILITIES AND ELECTRONIC EQUIPMENT.

2.0 PRODUCTS

2.01 GOVERNMENT FURNISHED EQUIPMENT

A. Longer lead items were purchased to expedite the replacement of the existing CRAC unit.

The purchased equipment is currently stored on site at the facility. It is the responsibility of the contractor to inspect the equipment and immediately notify the FAA of any deficiencies, changes, or deviations from this document. The following equipment is provided as GFE:

4 EA - Ceiling Recessed IDU Cassette, 24”x 24” (Make: Mitsubishi, Model: PLFY-

NFMU/SLZ-KF Series) 4 EA – Grille for Recessed IDU Cassettes (Make: Mitsubishi, Model: MHC SLP-18FAU) 1 EA – Outdoor AC Unit (Make: Mitsubishi City-Multi Model: ODU S Series

208/230V)

2.02 CONTRACTOR FURNISHED EQUIPMENT AND MATERIALS

A. The contractor is responsible for providing all equipment and materials required for a complete and functional system. The following components have been identified by the Government as necessary components or accessories for the GFE described above. This list is not an exhaustive bill of materials, and does not include everything required for a complete system, such as refrigerant piping, insulation, electrical components, etc.

2 EA- Wind Baffle, Large (Make: Mitsubishi, Model: MIA WB-PA3 (or approved equivalent)) 4 EA – Simple MA Remote Controller (Make: Mitsubishi, Model: MCA PAC-

YT53CRAU-J (or approved equivalent)) 4 EA – BACnet & Modbus Controller (Make: Mitsubishi, Model: MCA PAC-

UKPRC001-CN-1 (or approved equivalent)) 1 EA – Base Pan Heater (Make: Mitsubishi , Model: MIA PAC-SJ20BH-E (or approved equivalent))

B. Copper Tube and Fittings Copper Tube: ASTM B 280, Type ACR.

Wrought-Copper Fittings: ASME B16.22.

Wrought-Copper Unions: ASME B16.22.

Solder Filler Metals: ASTM B 32. Use 95-5 tin antimony or alloy HB solder to join copper socket fittings on copper pipe.

Brazing Filler Metals: AWS A5.8/A5.8M.

Flexible Connectors:

o Body: Tin-bronze bellows with woven, flexible, tinned-bronze-wire-reinforced protective jacket.

o End Connections: Socket ends.

o Offset Performance: Capable of minimum 3/4-inch misalignment in minimum 7-inch- long assembly.

o Working Pressure Rating: Factory test at minimum 500 psig.

o Maximum Operating Temperature: 250 deg F.

Copper Pressure-Seal Fitting for Refrigerant Piping:

o Standard: UL 207; certified by UL for field installation. Certification as a UL-recognized component alone is unacceptable.

o Housing: Copper.

o O-Rings: HNBR or compatible with specific refrigerant.

o Tools: Manufacturer's approved special tools.

o Minimum Rated Pressure: 700 psig.

Flared Fittings: SAE 45°

C. Piping Insulation and Jacket Flexible Elastomeric: Closed-cell, sponge- or expanded-rubber materials. Comply with ASTM C534/C534M, Type I for tubular materials, Type II for sheet materials.

Specialized PVC or metallic clad piping insulation cover for all exterior piping work.

ASJ Tape: White vapor-retarder tape matching factory-applied jacket with acrylic adhesive, complying with ASTM C 1136.

D. Sleeves Steel Pipe: ASTM A 53, Type E, Grade B, Schedule 40, galvanized, plain ends.

E. Sleeve Seals

Description: Modular sealing element unit, designed for field assembly, to fill annular space between pipe and sleeve.

Sealing Elements: EPDM interlocking links shaped to fit surface of pipe.

Pressure Plates: Stainless steel. Include two for each sealing element.

Connecting Bolts and Nuts: Stainless steel of length required to secure pressure plates to sealing elements. Include one for each sealing element.

F. Refrigerant ASHRAE 34, R-410A: Pentafluoroethane/Difluoromethane.

Install refrigerant isolation valves with service ports on each individual refrigerant circuit on both liquid and gas lines for future maintenance and repair work.

G. Cast-in-place Concrete Pad 3000 psi cast-in-place concrete, minimum 6” thickness, beveled edges.

#4 Rebar spaced 14” on center.

H. Electrical

Breaker, 40 Amp, two pole, equipment rated GFCI, (*match panelboard manufacturer).

Breaker, 20 Amp, two pole, equipment rated GFCI, (*match panelboard manufacturer).

AC Disconnect, 60 Amp 240-Volt 7.5 kW Non-Fuse, SquareD: QO200TRNM (or approved equivalent).

Switches, 3 pole, Mitsubishi: TAZ-MS303 (or approved equivalent).

Wire, 8 AWG, THHN/THWN.

Wire, 12 AWG, THHN/THWN.

Wire, 16/2 with shield.

Conduit, fittings, and junction boxes as required.

2.03 SPECIAL TOOL RESTRICTIONS

A. Powder-driven fasteners, tools, and devices are not allowed on facility property, with no exceptions.

3.0 EXECUTION

3.01 INSPECTION OF SITE BY CONTRACTOR

A. The contractor must have carefully examined the premises to determine the extent of the work and the conditions under which it must be done. A pre-bid conference at the facility with a tour of the construction area will be scheduled. This facility tour will be in compliance with COVID-19 social distancing regulations, clear of all symptoms as well as mask wearing.

3.02 AIR CONDITIONING EQUIPMENT INSTALLATION

1. Install all air conditioning units level and plumb, following manufacturer’s recommendations for service clearances.

2. Install ceiling cassettes using manufacturer’s standard mounting devices, securely fastened to building structure.

3. Install vibration dampening for the ceiling cassettes and the outdoor compressor.

4. Install outdoor unit on cast-in-place concrete pad.

3.03 PIPING INSTALLATION

1. Install refrigerant piping according to ASHRAE 15.

2. Install piping indicated to be exposed and piping in equipment rooms and service areas at right angles or parallel to building walls. Diagonal runs are prohibited unless specifically indicated otherwise.

3. Install piping above accessible ceilings to allow sufficient space for ceiling panel removal.

4. Install piping free of sags and bends.

5. Select system components with pressure rating equal to or greater than system operating pressure.

6. Install piping as short and direct as possible, with a minimum number of joints, elbows, and fittings.

7. Install sleeves and sleeve seals for piping penetrations of exterior walls.

3.04 PIPE JOINT CONSTRUCTION

1. Ream ends of pipes and tubes and remove burrs.

2. Remove scale, slag, dirt, and debris from inside and outside of pipe and fittings before assembly.

3. For Brazed Joints: Construct joints according to AWS's "Brazing Handbook," Chapter

"Pipe and Tube." Use Type BCuP (copper-phosphorus) alloy for joining copper socket fittings with copper pipe.

4. For Flared Fittings: Use SAE 45° fittings. Follow manufacturer’s instructions.

3.05 ELECTRICAL WORK

A. FAA will provide electrical support to included shut off, disconnection and reconnection of CRAC unit electrical connections. Lockout/Tagout procedures shall be followed, with the contractor providing their own locking device. Coordinate timing current CRAC unit shut-off 24 hours in advance with the COR.

B. Lock out/Tag Out: The Contractor shall positively verify de-energization before working on individual systems in accordance with OSHA Standard 29 CFR 1910.47, The Control of Hazardous Energy (lockout/tagout) and may place an additional lock on locked out equipment per the standard.

C. Installation:

1. Install 40 Amp two pole GFCI Breaker in Panel E/G, Room 120.

2. Install AC Disconnect adjacent to Outdoor AC Unit.

3. Install conduit and wire, terminate power circuit as per Mitsubishi Installation

Manual (See Sect. 6., M_PUMY-HP_P-NKMU_2_INSTALL_RG79F368H01_11-18)

4. Install 20 Amp two pole GFCI Breaker in Panel E/G, Room 120.

5. Install three pole switch adjacent to each Indoor Cassette Units.

6. Install conduit and wire, terminate power circuit as per Mitsubishi Installation

Manual (See Sect. 4, PLFY-P-NFMU-E_Install_BH79A348H01_12-17)

7. Install BACnet & Modbus Controllers and MA Remote Controllers, control cables, and terminate per Mitsubishi Installation Manual.

8. Seal wall penetrations. See Detail 3, Sheet M0004 in Mechanical drawing set.

D. Demolition (to be coordinated with mechanical demolition):

1. Remove controls and wiring for Liebert 3000 Indoor Unit.

2. Power circuits for Liebert 3000 Indoor Unit is fed from Main Distribution Panel

(MDP), which takes substantial shutdown planning. Turn off breaker in MDP, coordinate with FAA Airway Transportation Systems Specialist to find logical junction box to cut and cap wire. Remove conduit and wire from junction box to Indoor Unit. Redline panel schedule and label junction box as Abandoned In Place.

(Note: Remaining circuit to be demolished during future RTU replacement required shutdown.)

3. Remove conduit and wire from Liebert Outdoor Dry Unit (Outdoor Cooler) to Panel P1, Room 120. Install blank cover and redline panel schedule. Seal wall penetrations.

3.06 BUILDING AUTOMATION SYSTEM

A. The new mechanical units will be integrated into the existing Schneider building automation system (BAS). Contractor shall subcontract with Alaska Integrated Services for control system integration on this project, no substitutions.

Alaska Integrated Services 383 Industrial Way # 100 Anchorage, AK 99501 (907)375-6001

B. Alaska Integrated Services will create new graphics screen for the BAS. Basic functionality shall include:

1. Room set point: One set point commands all four cassettes to same temperature.

2. Monitor Operation Status: Individual status for each cassette.

3. Fault Monitor: All available fault/error status for each cassette unit.

C. Both existing Liebert unit and new Mitsubishi to be available in BAS during transition from start-up of new Mitsubishi system until demolition of old Liebert system.

3.07 CONTRACTOR RESPOSIBILITIES DURING CONSTRUCTION

A. Electronic equipment in the facility is susceptible to damage from dust, dirt and water.

The Contractor is responsible for insuring construction activities do no damage to the facility’s sensitive equipment. The Contractor must protect interior finishes, equipment and furniture from dust, dirt, water and physical damage.

B. Carpets must be protected by suitable carpet film during interior work related to construction.

C. When working in interior spaces, carefully cover desks, counters, consoles, equipment racks and furniture with poly sheeting or canvas drop clothes.

D. Insure protective covering for electronic equipment in racks and consoles will not impede adequate flow of cooling air. Special measures will be taken to protect electronics equipment under the four AC units installed in Room 111. The measures will be will be inspected and approved by the RE prior to proceeding with further protective covering.

Measures must be approved in advance by the FAA prior to start of work.

E. Ceiling tiles will be removed carefully and dust wiped off into a suitable receptacle prior to stacking for later reinstallation.

F. The contractor must monitor the effectiveness of dust control measures and insure covered equipment does not overheat.

G. The Contractor must provide and maintain cleaning supplies and equipment, throughout the duration of the project, including for immediate cleanup of dust and spills.

H. The Contractor must haul all project waste off site for proper disposal. Disposal of all debris and waste must comply with applicable laws and regulations. The Contractor assumes all liability for proper waste disposal.

3.08 OUTAGES

A. The Contractor must request in writing and coordinate mechanical or electrical outages at least three working days in advance with the RE. Outages must be kept to a minimum.

Outages could require the Contractor to work during other than normal hours at no additional cost to the Government. Some work may be required to be performed during non-peak traffic hours to limit impacts to building temperatures or operations. This may require night work.

B. The Contractor is expected to sequence the work to limit HVAC system outages.

Contractor must maintain temperatures in the Operations (Room 104) and the electronic equipment rooms, Rooms 111 and 113, between 65˚ and 78˚ during outages. Of special concern are the revisions to the AHU and control system modifications impacting delivery of conditioned air to the facility. Temporary cooling measures will be required if any outages last more than three hours.

C. Work must be closely coordinated with the FAA. The RE is the point of contact for this coordination. Air Traffic operations will take precedent over the Subcontractor’s request for system outages.

4.0 PHOTOS

4.01 EXISTING UNIT PHOTOS

Figure 1: Indoor component of the CRAC unit

Figure 2: Outdoor dry fluid component of the CRAC unit

Figure 3: CRAC unit specifications