STATEMENT OF WORK for HVAC.docx

STATEMENT OF WORK (SOW)

Installation of Three (3) Computer Room Air Conditioning (CRAC) Units with Roof-Mounted Dry Coolers and Pump Packages

1.0 PURPOSE

The purpose of this Statement of Work (SOW) is to obtain contractor services for the furnishing, delivery, installation, testing, commissioning, and startup of three (3) Computer Room Air Conditioning (CRAC) units, associated roof-mounted dry coolers, pump packages (pump paks), piping, electrical services, controls integration, and all ancillary components required to provide a complete and fully operational cooling solution for the MSPB Server Room located at:

US Merit Systems Protection Board 1615 M Street NW, Suite 500 Washington, DC 20036 The work shall be performed in accordance with applicable Federal, State, and local codes, industry standards, manufacturer requirements, building regulations, and Government specifications.

2.0 BACKGROUND

The Government operates a mission-critical computer room/data center that requires reliable environmental control to support information technology equipment. Existing cooling capacity must be upgraded and/or replaced to maintain required temperature and humidity conditions, improve system reliability, and provide redundancy for continuous operations.

The contractor shall provide a turnkey installation of three (3) new CRAC units utilizing roof-mounted dry coolers and pump packages to support the cooling requirements of the facility. These units shall meet or exceed the capabilities of the current CRAC units: Liebert CRAC Model #BU071WGAA00879(1), and Model #BU071WSAD008205(2), Dry cooler models #DS0109A and #DD0197A, and Liebert Pump pak models D2A and S1-5A.

3.0 SCOPE OF WORK

The Contractor shall provide all labor, supervision, materials, equipment, tools, transportation, permits, testing, commissioning, and documentation necessary to complete the project.

The work shall include, but is not limited to:

3.1 Equipment Procurement

Furnish and install:

· Three (3) Computer Room Air Conditioning (CRAC) Units.

· Two (2) roof-mounted dry coolers.

· Two (2) associated pump packages (pump paks).

· Glycol piping system.

· Refrigerant piping, if required by the selected equipment.

· Isolation valves, balancing valves, strainers, and accessories.

· Structural roof supports as required.

· Electrical disconnects.

· Power wiring.

· Control wiring.

· Condensate drain piping.

· Expansion tanks.

· Air separators.

· Chemical treatment and glycol solution.

· Monitoring and alarm interfaces.

The contractor shall verify all equipment compatibility and sizing before procurement.

3.2 Removal and Demolition

Where applicable, the Contractor shall:

· Remove existing equipment identified for replacement.

· Properly dispose of removed equipment and materials.

· Recover refrigerants in accordance with EPA regulations.

· Repair any affected surfaces resulting from demolition activities.

3.3 Mechanical Installation

The Contractor shall:

· Install three (3) CRAC units in designated locations.

· Install roof-mounted dry coolers in accordance with manufacturer specifications.

· Install pump packages and associated accessories.

· Install all supply and return piping.

· Provide insulated piping where required.

· Install vibration isolation components.

· Install condensate drainage systems.

· Provide all required supports and hangers.

All installations shall comply with:

· ASHRAE standards.

· International Mechanical Code (IMC).

· Local building requirements.

· Manufacturer installation requirements.

3.4 Roof Work

The Contractor shall:

· Coordinate all roof penetrations.

· Provide flashing and waterproofing.

· Install equipment supports and curb systems.

· Maintain roof warranty requirements.

· Restore all affected roofing surfaces.

Any roof work shall be coordinated with the Building’s facility manager prior to execution.

3.5 Electrical Installation

The Contractor shall:

· Verify existing electrical capacity.

· Provide electrical connections to CRAC units.

· Provide electrical connections to dry coolers.

· Provide electrical connections to pump packages.

· Install breakers, disconnects, conduits, and wiring as required.

· Label all electrical equipment.

· Perform electrical testing prior to energization.

All electrical work shall comply with:

· National Electrical Code (NEC).

· NFPA requirements.

· Local Authority Having Jurisdiction (AHJ) requirements.

3.6 Controls and Monitoring

The Contractor shall:

· Install manufacturer-provided controls.

· Integrate equipment with the existing Building Automation System (BAS), if applicable.

· Configure alarms and operational monitoring.

· Verify communication with existing facility monitoring systems.

· Provide trend and alarm reporting functionality.

At a minimum, the system shall monitor:

· Supply air temperature.

· Return air temperature.

· Humidity.

· Unit status.

· Pump status.

· Dry cooler status.

· High-temperature alarm.

· Loss-of-flow alarm.

· Equipment failure alarm.

4.0 PERFORMANCE REQUIREMENTS

The installed system shall:

· Operate continuously under design conditions.

· Maintain server room temperature within manufacturer-recommended operating ranges.

· Provide automatic control and monitoring capabilities.

· Operate without excessive vibration or noise.

· Maintain leak-free piping systems.

· Support mission-critical environments requiring high reliability.

All equipment shall be new and unused.

5.0 SUBMITTALS

The Contractor shall submit the following for Government review and approval:

5.1 Pre-Installation Submittals

· Product data sheets.

· Equipment specifications.

· Shop drawings.

· Mechanical drawings.

· Electrical drawings.

· Control diagrams.

· Structural support calculations.

· Project schedule.

· Installation procedures.

5.2 Post-Installation Submittals

· As-built drawings.

· Test reports.

· Startup reports.

· Balancing reports.

· Commissioning reports.

· Warranty documentation.

· Operations and Maintenance (O&M) manuals.

· Training materials.

6.0 TESTING AND COMMISSIONING

The Contractor shall conduct and document:

6.1 Mechanical Testing

· Pressure testing.

· Leak testing.

· Pipe flushing.

· Glycol concentration verification.

· Pump operational testing.

6.2 Electrical Testing

· Voltage verification.

· Control circuit verification.

· Grounding verification.

· Equipment startup testing.

6.3 Functional Performance Testing

Demonstrate:

· CRAC unit operation.

· Dry cooler operation.

· Pump package operation.

· Control sequence functionality.

· Alarm functionality.

· Automatic operation under normal and failure conditions.

Testing shall be witnessed by Government representatives.

7.0 TRAINING

The Contractor shall provide on-site training for Government personnel.

Training shall include:

· System overview.

· Normal operation.

· Alarm response procedures.

· Preventive maintenance requirements.

· Emergency shutdown procedures.

· BAS interface operation.

Training shall be a minimum of 8 hours and include both classroom and hands-on instruction.

8.0 WARRANTY

The Contractor shall provide:

· Minimum one (1) year labor warranty.

· Manufacturer warranty on all equipment.

· Warranty support and repair services.

· Response within 24 hours of Government notification during the warranty period.

9.0 SAFETY REQUIREMENTS

The Contractor shall:

· Comply with OSHA regulations.

· Maintain a site-specific safety plan.

· Provide fall protection for roof work.

· Protect Government personnel and property.

· Secure work areas during installation activities.

10.0 PERIOD OF PERFORMANCE

The Contractor shall complete all work within:

___ calendar days after Notice to Proceed (NTP).

The anticipated schedule is:

11.0 ACCEPTANCE CRITERIA

The Government will accept the project upon successful completion of:

· Installation of all specified equipment.

· Completion of testing and commissioning.

· Submission of all required documentation.

· Resolution of deficiencies identified during inspection.

· Successful demonstration of fully operational system performance.

12.0 DELIVERABLES

The Contractor shall provide:

1. Approved equipment submittals.

2. Shop drawings.

3. Installation schedule.

4. Startup reports.

5. Test and balance reports.

6. Commissioning report.

7. As-built drawings.

8. O&M manuals.

9. Warranty documentation.

10. Training completion records.

End of Statement of Work.

This format is suitable for inclusion in a federal solicitation (RFQ/RFP) and can be further aligned with FAR, agency-specific contracting language, and CSI Division 23 HVAC specifications.

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