SOW_SOC Air Handler Replacement.pdf

STATEMENT OF WORK

Security Operations Center Air Handler Replacement

DESCRIPTION OF WORK

A. Furnish materials and labor to replace (2) Liebert (new name Vertiv) Computer Room Air Conditioning (CRAC) units’ model # DS035AGCIEI078A and (2) Liebert Dry Coolers model #TCDV165 with (2) new Liebert (new name Vertiv) Computer Room Air Conditioning (CRAC) Precision Cooling Systems and (2) Liebert MC Air-Cooled Microchannel Condensers or equivalent model.

New units must meet or exceed the minimum technical specifications of the existing equipment:

Model Total Nominal Capacity kBtuh[kW]

Net Sensible Capacity kBtuh[kW]*

Nominal Airflow [CFM]

Liebert DS -

DS035AGCIEI078A -

35kW

119.4 [35] 136.4 [40] 5200

Height (in/mm) Width (in/mm) Depth (in/mm) Weight(lbs/kg) 76 / 1930 73 / 1854 35 / 889 1920 / 871

Units must be Air-Conditioning, Heating, and Refrigeration Institute (AHRI) certified for air conditioning systems used in commercial and residential applications.

Highly efficient and scalable cooling system.

CRAC units must address the unique vulnerabilities of IT equipment that is always on and at a higher risk of overheating-related failure.

Units must provide precise and reliable control of cooling, air filtration, and humidity.

Units must have De-humidification units installed to control humidity.

Units must be supplied with component redundancy for compressors, motors, and blowers.

Units must have Water leak/flooding alarm sensors under floor.

B. Located in the Security Operations Center located at 991 Sycolin road, Leesburg, VA 20175.

C. Existing electrical and water piping that is mounted to the walls is not expected to be interrupted or altered -only disconnected from old equipment and reconnected to new equipment. Alterations to the facility are not acceptable as this is a leased facility. Footprints of CRAC units, piping, and condensers are to remain as similar as possible to equipment being replaced.

D. The Contractor must dispose of all material removed in accordance with all federal, state, and local regulations and the contract documents.

EXISTING FOOTPRINT AND LOCATIONS

A. Computer Room Air Conditioning (CRAC) unit outer server room west wall (two views, click and drag corner of image to enlarge), (floor tiles are standard 24” square for sizing purposes):

B. Computer Room Air Conditioning (CRAC) unit inner server room east wall (two views, click and drag corner of image to enlarge), (floor tiles are standard 24” square for sizing purposes):

C. Condenser units and piping north end of building (click and drag corner of image to enlarge):

CONTRACTOR USE OF PREMISES

A. Existing Facility Operations:

1. The Security Operations Center is a 24 hour, 7 day per week operating facility.

2. Coordinate all construction activity with the Contracting Officer's Representative (COR) so as not to interfere with functions of the Security Operations Center.

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

C. Use of existing facility cafeteria/breakroom and restrooms is permitted.

D. Access to Existing Building: Access for personnel will be through the existing entrances of the facility. Work in areas other than the designated work site must be coordinated with the Resident Engineer and may require a facility escort.

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

F. Confine operations, activities, storage of materials and employee parking within designated areas.

COORDINATION AND ON SITE SUPERVISION

A. The contractor must coordinate scheduling, submittals, and work of the various sections of specifications 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 contractors.

B. Verify utility requirement characteristics of operating equipment are compatible with building utilities.

C. Coordinate space requirements and installation of electrical work.

PRE-INSTALLATION CONFERENCE

There will be a preconstruction conference held to discuss installation and facility/contractor concerns before construction begins onsite.

SUBMITTAL PROCEDURES

The Contractor must submit catalog cuts of the proposed material for approval.

CONSTRUCTION PROGRESS SCHEDULE

The schedule for this construction project must be coordinated with the COR. All phasing requirements must be addressed in the schedule. The SOC Server room temperature rapidly increases without the CRAC Units in operation. Request vendor ensure that one CRAC unit is removed/installed/tested/fully operational prior to the second CRAC unit being removed/installed/tested/fully operational. With knowledge of how long it takes; EXAMPLE: perhaps one in the morning and one in the afternoon, or one on one day and one on the next day, or one on one week and one the next week.

Use of cranes should not be required. The circulating fans, condenser units, enclosure and plumbing are at ground level at the north/northwest end of our facility inside our fence.

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.

TEMPORARY FACILITIES

A. Facilities

1. Existing facilities may be used.

2. Maintain in a clean and sanitary condition; failure to do so will result in loss of privileges.

B. Electrical Power

1. 120 volt, 20 amp power will be furnished at no cost to the contractor. Coordinate location with the COR.

C. Water

1. Use existing building water system for construction purposes at no cost to the contractor.

2. Obtain existing hose bib location from the COR.

D. 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 five 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.

E. Removal of Temporary Utilities, Facilities, and Controls

1. Remove temporary above-grade or buried utilities, equipment, facilities, and materials, prior to final inspection.

2. Clean and repair damage caused by installation or use of temporary work.

3. Restore existing facilities used during construction to original condition.

PROTECTION OF EXISTING EQUIPMENT AND EXISTING BUILDING

A. Provide complete dust control to connect points of the existing building. Maintain climate control.

B. Provide dust and water protection for existing equipment for any operation. Provide dust and water removal (vacuum) at the source during operations.

SECURITY

A. Provide list of contractor's personnel who will require access to the Security Operations Center premises to COR prior to the notice-to-proceed date. Keep list current during project work.

B. Report to FAA security guard at front security gate. Submit proper identification to obtain a temporary FAA badge which will be worn on an outside garment at all times while on the Security Operations Center premises. Return badge daily to the security guard when such personnel leave the Security Operations Center premises.

C. Arrange work so contractor's personnel can be escorted inside the building by the FAA to certain areas which are considered to be classified. Restrict contractor's personnel to those areas necessary to accomplish work. Violators of any security regulations will be removed from the premises with the right to re-enter revocable.

WORK HOURS

A. The Contractor must coordinate work with the FAA COR to prevent conflicts with in the operational facility. This work should be accomplished Monday through Friday between 9a.m. and 6 p.m. If it is determined that the work needs to be done after hours, the contractor must coordinate request through the FAA COR for approval.

B. There will be no work permitted on site on any/all federally observed holidays.

STARTING SYSTEMS OR EQUIPMENT

A. Provide seven working days notification 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 responsible persons in accordance with manufacturers' instructions.

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 Security Operations Center property.

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.

C. Specifications: Legibly mark each item to record actual construction.

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

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

CODES AND PERMITS

A. Perform all work in accordance with the current editions of the Uniform Building Code (UBC) and National Electrical Code (NEC).

B. Building permit will not be required for this project; however, all environmental notifications and permits as required by law must be obtained pertaining to the asbestos abatement work included in this project.

INSPECTION OF SITE BY CONTRACTOR

The contractor may examine the premises to determine the extent of the work and the conditions under which it must be done. A pre-bid tour of the facility construction area can be scheduled if necessary.