Attachment_1_-_Statement_of_Work_-_Manchester_80-ton_Chiller_(19_May_2026)_0002.pdf

Statement of Work National Oceanic and Atmospheric Administration (NOAA)

National Marine Fisheries Service (NMFS) Northwest Fisheries Science Center (NWFSC)

Manchester 80-Ton Chiller Replacement 19 May 2026

1.0 ORGANIZATION. The Northwest Fisheries Science Center (NWFSC) is a marine research organization owned and operated by the U.S. Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), National Marine Fisheries Service (NMFS). NWFSC has five

(5) major campuses located in Washington and Oregon with its regional headquarters located in Seattle, WA.

2.0 PROJECT LOCATION. The project described in this Statement of Work (SOW) is located at the Manchester Research Station located at 7305 Beach Drive, Port Orchard, WA 98366. See Figure 1 of Exhibit A.

3.0 REQUIRED SERVICES. The contractor shall provide all labor, materials, tools, equipment, supervision, and incidentals to remove the existing Century 80-ton chiller and install a new air-cooled 80-ton chiller. The new system shall maintain equivalent performance using existing infrastructure, including glycol tank, pumps, piping, concrete pad, electrical service, and seawater heat exchangers. All work shall meet applicable federal, state, and local requirements. If none exists, all work shall meet industry standards.

3.1 TASK 1. 80-TON CHILLER REPLACEMENT.

3.1.1 Existing Chiller Profile (see Figure 2 of Exhibit A).

3.1.1.1 Century 80-ton unit installed 2005, R22 refrigerant (ODS, no longer serviceable).

3.1.1.2 Electrical: 3-phase, 480VAC, 60 Hz (see Figure 4).

3.1.1.3 Concrete pad: 15’ x 30’, in good condition.

3.1.1.4 Connected to 3000-gal glycol tank (20–25% propylene glycol).

3.1.1.5 Glycol pump: 3 HP, 3-phase, 240VAC, 140 GPM.

3.1.1.6 Two seawater heat exchanger loops: 210 GPM total, temperatures 4–5°C.

3.1.1.7 Figures 3 & 4 in Exhibit A provide schematics and specifications.

3.1.2 Site Operating Environment

3.1.2.1 Ambient Conditions: The chiller shall be capable of reliable operation within the following ambient outdoor temperature range:

3.1.2.1.1 Minus 18°C to 46°C (0°F to 115°F)

3.1.2.1.2 Unit shall provide full cooling capacity at: 35°C (95°F) ambient dry-bulb temperature.

3.1.2.2 Seawater Source: The installation location is within a marine/coastal environment adjacent to Clam Bay. Equipment shall be suitable for corrosive coastal exposure.

3.1.2.2.1 Seasonal temperature: 8-15°C (46-59°F)

3.1.2.2.2 Two (2) recirculating loops (Broodstock: 160 GPM at 5°C; Hatchery: 50 GPM at 4°C)

3.1.2.2.3 Approximately 20% make-up water for both loops

3.1.2.3 Glycol Loop: 3000-gal tank, 20–25% food-grade propylene glycol, 140 GPM flow, maintained –2°C to –1°C (28–30°F). The glycol loop serves as a thermal storage system and provides hydraulic decoupling between the chiller and downstream process heat exchangers. The 3000-gallon glycol tank is a single system component that functions as both a thermal storage reservoir and a buffer tank. The terms “thermal storage” and “buffer tank” are interchangeable in this specification and refer to the same physical equipment.

3.1.3 New Chiller Requirements

3.1.3.1 Capacity & Performance: Match existing cooling of two seawater loops (210 GPM total) via existing 3000-gal glycol tank. The system shall be designed to maintain stable glycol supply conditions to support downstream seawater heat exchanger loads under all design and part-load conditions. System performance shall be evaluated at the plant level (buffer tank / distribution header), not at individual equipment internal differentials.

3.1.3.2 Nominal Capacity: 80 tons minimum

3.1.3.3 Full Cooling Capacity available at:

3.1.3.3.1 95°F ambient dry bulb

3.1.3.3.2 25% propylene glycol solution

3.1.3.3.3 28–30°F glycol temperature at the system distribution header, defined as the plant operating condition. The chiller shall modulate to maintain this condition as measured at the distribution header, utilizing the buffer tank and system hydraulics as required for system stability.

3.1.3.3.4 Entering glycol temperature shall not be specified, controlled, or enforced as a setpoint, control target, or performance criterion. No evaporator temperature differential (ΔT) shall be used, assumed, or required for system design, control, optimization, or acceptance.

3.1.3.4 Materials: Corrosion-resistant for marine/coastal environment.

3.1.3.5 Condenser Coils: Copper tubes, aluminum fins, corrosion-resistant epoxy coating.

3.1.3.6 Compressors: Hermetically sealed scroll type, with crankcase heaters and overload protection.

3.1.3.7 Frame: Heavy-gauge galvanized steel with powder-coat finish.

3.1.3.8 Standards: Constructed per UL 1995 and NEC; rated per AHRI 550/590 & 551/591;

ANSI/ASHRAE 15 compliance.

3.1.3.9 Electrical Power: 3-phase, 480VAC, 60 Hz.

3.1.3.10 Controls shall meet the following requirements:

3.1.3.10.1 BACnet-compatible interface

3.1.3.10.2 Digital display

3.1.3.10.3 Alarm diagnostics

3.1.3.10.4 Leaving fluid temperature control

3.1.3.10.5 Freeze protection

3.1.3.10.6 Low ambient temperature controls

3.1.3.10.7 Automatic lead/lag compressor staging.

3.1.3.10.8 System control shall be based exclusively on leaving glycol temperature control. Control strategies using evaporator temperature differential (ΔT) as a primary or secondary control variable are not permitted.

3.1.3.10.9 Control logic that attempts to maintain fixed evaporator ΔT by modulating evaporator flow is explicitly prohibited. Evaporator flow shall be maintained within manufacturer-approved limits independent of ΔT considerations.

3.1.3.10.10 System shall be capable of stable operation under hydraulically decoupled conditions using buffer tank energy storage. Chiller and process loads shall not be hydraulically or thermodynamically coupled in a manner that forces fixed ΔT operation.

3.1.3.11 Refrigerant: Low-GWP, EPA-approved (e.g., R32 or equivalent).

3.1.4 Work Plan. The contractor shall submit a detailed work plan for NWFSC review and approval prior to beginning fieldwork, including:

3.1.4.1 Project schedule, milestones, and coordination plan.

3.1.4.2 Removal and disposal of existing chiller

3.1.4.3 Recovery and disposal of existing refrigerant in accordance with EPA regulations

3.1.4.4 Demolition and disposal of associated materials

3.1.4.5 Rigging and crane services

3.1.4.6 Delivery and installation of new chiller

3.1.4.7 Reconnection to existing piping systems

3.1.4.8 Electrical reconnection

3.1.4.9 Control integration

3.1.4.10 Glycol draining and refill as required

3.1.4.11 Pressure testing

3.1.4.12 Startup and commissioning

3.1.4.13 Operator training

3.1.4.14 Final cleanup

3.1.4.15 Verification of system performance as specified in 3.1.3.

3.1.5 Construction & Installation

3.1.5.1 Provide all labor, materials, tools, supervision, and equipment required to furnish and install the approved chiller system in accordance with manufacturer requirements and this specification.

3.1.5.2 Protect existing site infrastructure during installation, including piping, electrical systems, and equipment.

3.1.5.3 Maintain work area in a safe and clean condition. Remove debris regularly and upon completion of work.

3.1.5.4 Seal and weatherproof all penetrations created or modified during installation.

3.1.6 Testing & Commissioning

3.1.6.1 The chiller manufacturer shall provide qualified personnel to perform startup and commissioning of the complete system.

3.1.6.2 The system shall be tested and commissioned to demonstrate compliance with all performance requirements in Section 3.1.3 under actual operating conditions.

3.1.6.3 A commissioning report shall be submitted documenting that the system meets the specified performance requirements.

3.1.7 Training

3.1.7.1 Provide NWFSC personnel training on system operation and preventive maintenance within 5 working days after commissioning.

3.1.7.2 Submit training records to NWFSC.

3.1.8 Warranty

3.1.8.1 Provide one-year labor and craftsmanship warranty.

3.1.8.2 Register manufacturer warranties for equipment and provide documentation to NWFSC.

3.1.9 As-Built Drawings

3.1.9.1 Submit 2 hard copies, 1 PDF, and 1 CAD file of all electrical, mechanical, and controls drawings.

3.1.10 Operation & Maintenance Manual

3.1.10.1 Submit 2 hard copies and 1 PDF of complete O&M manual.

4.0 DELIVERABLES.

Task Deliverable Due Date Notes Safety Plan OSHA-compliant plan 30 CD after NTP Prior to fieldwork Project Schedule Detailed schedule 7 days prior to start Updated weekly Product Substitution Requests Submittals for approval 7 days review Prior to procurement Work Plan Detailed installation plan 30 CD after NTP Must be approved before fieldwork Removal of Existing Chiller Completion Per approved plan Includes refrigerant disposal New Chiller Installation Completion Per approved plan Must meet specifications Testing & Commissioning Certified report Before turnover Must confirm performance Training Training records Within 5 days post-commissioning Operations & maintenance

As-Built Drawings 2 hard, 1 PDF, 1 CAD Prior to acceptance All system components O&M Manual 2 hard, 1 PDF Prior to acceptance Full operations & maintenance

5.0 GENERAL REQUIREMENTS

5.1.1 Safety & Coordination

5.1.1.1 Contractor shall maintain a safe work environment per OSHA and NWFSC requirements.

5.1.1.2 Coordinate schedule and weekly progress updates with NWFSC POC.

5.1.2 Site Protection

5.1.2.1 Minimize disruption to facility operations and research activities.

5.1.2.2 Maintain site cleanliness and secure openings daily.

5.1.3 Debris Management

5.1.3.1 Remove all debris daily; legally dispose at contractor expense.

5.1.4 Work Hours

5.1.4.1 Standard: 8:00 a.m. – 4:30 p.m., Mon–Fri.

5.1.4.2 Work outside standard hours requires 24-hour notice to COR.

6.0 NOAA NWFSC POINT OF CONTACTS

6.1 Contracting Officer Representative (COR):

Thanh Minh Trinh, P.E.

NOAA/National Marine Fisheries Service/NWFSC 2725 Montlake Blvd E., Seattle, WA 98112 Office: 206-860-6798. Cell: 206-310-5468 Email: thanh.m.trinh@noaa.gov

6.2 Task Monitor (TM) at Manchester Research Station:

Shawn Katz Office: 360-871-8306. Cell: 206-798-0919.

Email: shawn.katz@noaa.gov

7.0 PERIOD OF PERFORMANCE

Task Task Description Estimated Completion Date 1 Manchester 80-T Chiller Replacement 270 days after NTP (Notice to Proceed)

END OF SOW

EXHIBIT A

Figure 2 - Existing Century 80-Ton Chiller

Figure 1 - Manchester General Site Layout

EXHIBIT A

Figure 43 - Manchester 80-Ton Chiller System

Figure 4 – Existing 80-T Chiller and Electrical Power System

Figure 3 - Manchester 80-Ton Chiller System