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Statement of Work Emergency Replacement of Two Variable Speed Drives (VSD) of a 380-ton York YMC2 Centrifugal Chiller Hollings Marine Laboratory

331 Fort Johnson Rd Charleston, SC 29412

1.0 Background

The National Ocean Services, National Centers for Coastal Ocean Science (NCCOS) Hollings Marine Laboratory has an emergency requirement to procure the replacement of two variable speed drives (VSD) for two (2) 380-ton York YMC2 Centrifugal Chillers due a recent failure of both drives on May 13, 2025 which are no longer supported by the manufacturer. These chillers provide continuous climate control and building mechanical infrastructure to support its research, staff, and laboratory environments.

These systems are essential to controlling the speed, managing energy efficiency, and ensuring sustained chiller operation and controlled indoor climate to support NOAA’s mission critical work. Efforts to repair the failed VSDs have proven ineffective due to the unavailability of compatible parts and service support. Manufacturer guidance recommends replacing the obsolete VSDs with an updated version to restore proper functionality and ensure long-term operational supportability. Installing new VSDs is the only way to restore indoor climate control and reduce extreme high temperatures within the building which are currently impacting personnel and scientific research and systems within the building which can cause millions of dollars in damage to the Government.

2.0 Objective

The objective of this contract is to procure emergency replacement of two (2) variable speed drives (VSDs) for two (2) 380-ton York YMC2 Centrifugal Chillers to supply Hollings Marine Laboratory laboratories with chilled cool air and climate control to restore critical HVAC functionality to the facility.

This replacement will also prevent recurring maintenance costs and will ensure integration with NOAA facility infrastructure and compliance with federal energy management and sustainability requirements. A recent failure of these VFDs have resulted in extreme temperatures within the building and total loss of infrastructure control for the facility which has resulted in a substantial safety hazard, damage to scientific systems and research, and closing of the facility. Therefore, the Government requires this work to be completed within 90 days or less from the date of award.

3.0 Scope of Work

The contractor shall perform the following minimum requirements to ensure a successful replacement of two variable speed drives:

1. Remove and decommission the existing, failed Variable Speed Drives on both Chiller One and Chiller Two;

2. Procure and install an updated manufacturer-recommended VSD compatible with each York YMC2 centrifugal chiller, One and Two, and NOAA’s building automation system;

3. Integrate and configure the new VSDs for seamless communication and control within the existing building management systems;

4. Ensure successful integration with two York YMC2 chillers and facility control systems

5. Perform startup, commissioning, and testing to confirm proper function for both Chiller One and Chiller Two;

6. Provide system documentation, preventive maintenance guidelines, and on-site operator training.

7. The contractor shall ensure that the replacement of variable speed drives meets the manufacturers specifications, all Federal and State current code and regulations

8. Shall ensure all operational and safety tests are run on the system and the Government Technical Point of Contact is present during the tests. All removed materials must be properly disposed of per State and Federal Regulations and codes.

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4.0 Qualifications

The selected contractor must demonstrate competency and experience in repair and maintaining equivalent size chillers and HVAC systems. The contractor must have at the time of proposal all applicable licenses as required under the laws of South Carolina, the federal government, and local ordinances for the performance of work under this agreement.

5.0 Guarantee of work: Contractor shall guarantee all work and agree to remedy, at its own expense, any defects caused by poor workmanship or materials.

6.0 Work Schedules/Shifts: The Contractor shall accomplish all work for the HML Laboratory between the hours of 0600 and 1800 Monday through Friday, excluding Federal Holidays. This allows the flexibility for the Contractor to schedule eight hours of work during a time when HML staff will be at the facility. If weekend work is required a meeting with the Government Technical POC and the client will be held to address the best way to proceed in this matter and the Contractor will be notified of the outcome.

7.0 Security/Safety/Environmental Considerations

Contractor shall ensure that their employees are aware of the roles and responsibilities identified by the environmental management system and how these requirements affect their work performed under this contract. All safety requirements and electrical tag out procedures will be coordinated with the onsite Government Technical POC.

8.0 Period of Performance: All work associated with replacement of two variable speed drives (VSD) shall be accomplished within NLT 90 days from date of award.

9.0 Deliverables:

Item Description Qty. Due Date Deliver To 1 Replacement of two variable speed drives for two York YMC2 centrifugal chillers.

1 Job Within 90 days of award

Rich Sparkman, HML 331 Fort Johnson Rd Charleston, SC 29412 808-295-3822

10. Special Requirements

1. The Contractor shall dispose of removed equipment and shall comply with all applicable federal and local environmental regulations;

2. The Contractor shall demonstrate an in-depth knowledge and experience with York chiller systems, and shall provide documentation showing OEM certification or equivalent qualifications;

3. All equipment shall be new and fully supported by the original equipment manufacturer (OEM) with a minimum one-year warranty.

11. Government Technical Point of Contact:

Richard Sparkman Richard.sparkman@noaa.gov Ph: 808-295-3822

Draf t mailto:Richard.sparkman@noaa.gov