SOW - Chiller Replacement Narragansett_6_29_2020_Final (6).docx

Statement Of Work Replace AC Chiller at the Northeast Fisheries Science Center Narragansett RI Laboratory 28 Tarzwell Drive, Narragansett RI

May 26, 2020

PART 1 GENERAL

1.01 DESCRIPTION

The Northeast Fisheries Science Center (NEFSC) laboratory is located at 28 Tarzwell Drive Narragansett RI 02882. All inquiries are to the attention of Ron Guilmette (Facility Operations), is the Owner’s Representative and may be contacted regarding questions, 401-782-3291 Office Phone or EMAIL Ron.Guilmette@noaa.gov.

A. Work includes but not limited to removing and replacing an existing chiller at the above location.

B. Installation onsite shall not start prior to October 2020.

C. Installation shall have a maximum number of working days to complete the physical demolition, installation, start-up and testing. DO NOT START DEMOLITION UNTIL ALL MATERIALS AND EQUIPMENT HAS BEEN DELIEVERED TO THE FACILITY.

Narragansett onsite working days: fourteen(14)

D. The Contractor and/or subcontractor shall be normally engaged in the repair, construction, installation and demolition of industrial HVAC&R systems and shall have a minimum of seven (7) years verifiable experience related to this type of work. Contractor shall supply all labor, engineering, testing, programing, permitting, equipment, tools and materials required as described in the contract documents, drawings, required by law and regulation and as necessary to complete the project.

Narragansett RI Site Location:

Narragansett RI Project Location:

1.02 EXTENT OF WORK

A. Provide all engineering, labor, materials, tools, equipment, permits, monitoring, testing, demolition, disposal, and supervision necessary to complete the work described or shown in the drawings, specifications, and accordance with the manufacturer’s most current specifications and details to ensure the requirements in the contract documents are met supporting the best practices as recommended by the manufacture, Government Agencies, Professional Associations, Councils, Institutes, Manufacture, Codes and Standards. This includes but not limited to all those listed in Appendix 2:

B. The contractor shall be fully knowledgeable of all requirements of the contract documents and shall make themselves aware of all job site conditions that will affect their work.

C. Demolition

1. Remove existing 65-ton chiller.

2. Remove and dispose of ancillary equipment and infrastructure support such as but not limited to: Conduit, wiring, conduit, plumbing, valves,springs, isolators, insulation, hoses, drip pans, breakers, and supports.

3. Remove and dispose of materials and coolant per latest rules, regulation and law. Including strict accordance to EPA, Local DEP, DOT and other regulatory agencies for R-22, radiator fluid, oil, and other coolant and materials.

4. Remove 4 inch -3 way pneumatic valve, 4 inch -Y strainer, 15 LF of 4 inch steel and 62 LF of 4 inch copper piping, pump insulators, motor stand, expansion tank, insulation and associated piping. Remove pneumatic diverter valve for cooling loop.

D. Improvements:

1. Install 50 ton Dunham-Bush, Water cooled, packaged chiller with scroll compressor or approved equal. 208 volt, three phase.

2. Supply and install required wiring, conduit, plumbing, dry wells,temperature probes, gauges,vibration isolators, expansion tanks,supports, framing, insulation, all wiring to electrical panel, properly sized breakers, hoses, tubing, safety switches and safety devices, fans, emergency shut offs, alarms, switches, controls, all wiring for safety control circuits, temperature probes, electronic control valves and main power source as recommended by the manufacture, labeling, drip pans, coolant, adjustments to the existing pad or floor, testing, warranty, start–up procedures, maintenance manuals, training, programming, engineering, all manufacturers recommendations, other ancillary equipment and supplies not specifically listed necessary for a complete installation and start-up.

3. Startups must be completed by the manufacture authorize representative.

4. Install one (1) electric actuator controlled 4- inch, three-way valve and temperature probe, in place of an existing four-inch three-way pneumatic valve and probe. This valve is used to regulate cooling tower water temperatures to stabilize Chiller head pressures and shall be incorporated into new chiller controller. Dry well is required for temperature probe.

5. Install one electric actuator diverter valve for cooling changeover supply loop and install summer winter control.

6. Install two (2) lockable 208 volt, 3 phase electrical disconnects in NEMA approved enclosures with proper amperage ratings, seal tite,wiring and connectors for use with existing in line circulator pumps.

7. Three (3) steel braided pump vibration pump insulators and pump support pad.

8. Install lock-in, lock-out control fuction and hand/on/off auto switch for existing cooling tower pump as well as Chiller relay control.

9. Install cooling tower fan temperature controlor as well as hand on/off operation auto switch for existing cooling tower fan.

10. Install approximately 30 LF of 4- inch schedule 80 PVC, including all flanges, fittings, connections, elbows supports, valves, hangers, and associated piping.

15. Install insulation on chilled water piping and circulator pump piping.

1.03 SUBMITTALS

A. The contractor shall submit the following:

1. Product data (10 days after NTP)

2. Schedule (10 days after NTP)

3. Safety Plan. (10 days after NTP)

4. Safety Data Sheets (SDS) (10 days after NTP)

1.04 PRODUCT DELIVERY, STORAGE AND HANDLING

A. Deliver materials to the job site in the manufacturer’s original, unopened containers or wrappings with the manufacturer’s name, brand name and installation instructions intact and legible. Deliver in sufficient quantity to permit work to continue without interruption.

B. Comply with the manufacturer’s written instructions for proper material storage.

C. Any materials that are found to be damaged shall be removed and replaced at the contractor’s expense.

1.05 WORK SEQUENCE

A. Care shall be exercised to provide protection of surrounding structures, parking lot, and hallways and buildings structure.

1.06 USE OF THE PREMISES

A. Before beginning work, the contractor shall secure approval from the building owner’s representative for the following:

B. The NEFSC is a smoke free campus. The Contractor and its employees shall adhere to all applicable rules and regulations regarding maintenance of a smoke free environment on the job site.

C. Use of Government Facilities

1. Water and electricity for construction purposes are available at the work site.

2. Toilet facilities shall be provided by the Contractor. Location of temporary facilities shall be coordinated with the COR.

3. Contractor shall provide storage for tools and materials. The Government is not responsible for providing storage or security of materials, tools, or equipment.

4. Contractor has the option at his/her own cost to provide a temporary job office. Location to be determined and approved by the COR.

D. The premises will be occupied during the performance of the work. Contractor to coordinate work with the COR to accommodate the work schedule, continuing access and completion date.

E. Working hours shall be 7:30 AM – 4:00 PM M-F. Contractor shall observe all federal holidays.

F. All persons employed within the boundaries of the property or restricted-access areas therein, and all persons permitted to enter such property and areas shall comply with the security regulations for the NEFSC Laboratory.

G. The Government reserves the right to close down the job site and order Contractor personnel off the premises in the event of a national emergency or a government shutdown. The Contractor may only return to the site with verbal approval from the Contracting Officer or COR.

H. The Government reserves the right to exclude or remove from the site or building any employee of the Contractor or a subcontractor whom the Government deems incompetent, careless, insubordinate or otherwise objectionable, or whose continued employment on the work is deemed by the Government to be contrary to the public interest.

I. Personnel may be subject to inspection of their personal effects when entering and leaving the facility. In addition, unscheduled inspections of personnel may be made when entering or while on site.

1.07 EXISTING CONDITIONS

A. If discrepancies are discovered between the existing conditions and those noted on the drawings, immediately notify the COR.

1. Upon receipt of Bidding Documents, verify documents are complete. Notify COR if documents are incomplete. Immediately notify COR upon finding discrepancies or omissions in Bidding Documents.

1.08 PRE-BID SITE VISIT

A. Prior to bid submittal, the contractor shall schedule a job site inspection to observe actual conditions and verify all dimensions. For access to the site prior to the closing Bid Date, the contractor must contact the owner’s representative, Ron Guilmette at 401-782-3291 to coordinate an appropriate time. Coordinate site visits at least 48 (two working days) hours in advance of intended site visit. Not visiting the site does not relieve the Contractor from unknown conditions, physical restraints, equipment and other obstacles to be temporarily relocated, and access consideration.

1.09 FACILITIES AND CONTROLS

A. The contractor shall remove and dispose of all debris and trash from the job site in a timely and legally acceptable manner so as to not detract from the aesthetics or the functions of the building.

B. Contractor shall comply with all applicable Federal, State, and local laws and regulations concerning environmental pollution prevention control and waste disposal.

C. Contractor shall immediately inform the COR of any environmentally hazardous situations that may arise as well as contact required regulatory agencies.

1.10 JOB SITE PROTECTION

A. The contractor shall adequately protect the site from damage while performing the required work. Provide canvas, boards, barriers, signs, cones, floats, tenting, air monitoring, negative air, and other devices as necessary for protection of equipment, facilities and personnel. Remove protection materials, devices at the completion of the project. The contractor shall repair or be responsible for costs to repair all property damaged during the performance of work.

B. Protect against fire and flame spread. Maintain proper and adequate fire extinguishers within fifty (50) feet of any open flames and welding. If any heated or flamed application is utilized a 15 lb or larger fire extinguisher shall be within 25’ reach or closer at all times. Contractor to supply two 15 lb or larger fire extinguisher to the job site.

C. Comply with all requirements mandated by OSHA, EPA, RI and CT DEP and othe regulatory agencies during the course of the project.

D. Best Management Practices (BMP) shall be followed and exercised to provide protection during the course of the project.

E. The contractor shall take precautions to prevent the spread of debris.

1.11 SAFETY

A. The contractor shall be responsible for all means and methods as they relate to safety and shall comply with all applicable OSHA, NEC, NFPA, and EPA, local, state and federal requirements. Safety shall be the responsibility of the general contractor. All related personnel shall be instructed daily to be mindful of the full time requirement to maintain a safe environment for the facility’s occupants including staff, visitors, customers and the occurrence of the public on or near the site.

B. The Contractor shall comply with the requirements of 29 CFR, Part 1910: Occupational Safety and Health Administration (OSHA) General Industry and Health Standards and Health Standards and 29 CFR, part 1926 Construction Standards. The Contractor shall promptly correct any non-complying work or conditions. Contractor shall be responsible to ensure their work does not affect the safety of the public or employees of the Government. Neither the Government nor its representatives shall bear any responsibility for safety precautions at the project work site. If, however, in the opinion of the COR a life-threatening condition exists, the COR will orally (to be confirmed in writing) require the Contractor to immediately suspend work in the affected area until the condition is corrected. Whenever Contractor’s operations may create a hazardous condition, it shall at its sole expense, furnish, install and maintain such guards, fences, barricades, railing, light, signs, or other devices necessary to prevent accident, injury or damage to people or equipment.

C. Five days prior to start of work contractor shall submit a safety plan. To include but not limited, open flames, welding, debris, cleanup, work place safety methods, and emergency procedures. The Safety Plan must be available on site at all times and must be reviewed with all subcontractors working under this contract for the duration of the contract project.

D. It is the contractor’s responsibility to ensure all employees, sub-contractors, venders, and other company representative adhere to all safety rules, regulations, policies and practices.

E. The contractor shall keep the project site in a neat and orderly condition at all times.

1.12 WORKMANSHIP

A. All work shall be of highest quality and in strict accordance with the manufacturer’s published specifications and to the building owner’s satisfaction, most recent codes and standards.

1.13 QUALITY ASSURANCE

A. Unless otherwise noted in the contract documents, contractor shall comply with the manufacturer’s current specifications and details.

B. Provide adequate number of experienced workmen regularly engaged in this type of work who are skilled in the application techniques of the materials specified. Provide at least one thoroughly trained and experienced superintendent on the job at all times when work is in progress.

C. There shall be no deviations made from this specification or the approved shop drawings without the prior written approval of the COR. Any deviation from the manufacturer’s installation procedures must be supported by a written certification on the manufacturer’s letterhead and presented for the specifier’s consideration.

D. All substitutions requests for products, equipment, materials and methods described within the contract documents shall be submitted to the COR. Substitutions request are not permitted prior to the Notice to Proceed. Substitute products will be considered when the request is submitted in writing to the COR. The COR will have seven (7) working days to approve / disapprove substitution request. Substitution request shall not result in schedule extensions.

1.14 JOB CONDITIONS, CAUTIONS AND WARNINGS

A. The Contractor shall not cause or permit any hazardous material to be brought upon, kept or used in or about the premises by its agents, employees, or subcontractors without the prior consent of the COR. Hazardous materials that are necessary to the performance of this contract shall be used, kept and stored in a manner that complies with all laws regulating any such hazardous material brought upon or used or kept at this site. Contractor shall provide Safety Data Sheets to the COR for any hazardous materials used in the performance of this contract.

B. As used herein, the term “Hazardous Material” means any hazardous or toxic substance, material, or waste, including but not limited to, those substances, materials, and wastes listed in the Department of Transportation Hazardous Material Table (49 CFR 172.101) or by the Environmental Protection Agency as hazardous substances (40 CFR Part 68.130) and amendments thereto, petroleum products, or such other substances, material, and wastes that are or become regulated under any applicable local, state, or Federal law.

1.15 WARRANTY

A. Provide manufacturer five (5) year warranty covering both labor and material with no dollar limitation.

PART 2 PRODUCTS

A. Dunham-Bush Scroll Compressor Water Cooled Package Chiller, 50-ton (Capacity) model WCS50-6QP or approved proved equal. Model includes but not limited to:

208V/3ph/60Hz Controlled orbit with floating seals and advanced scroll geometry Chilled water pump control, Crankcase heater, Motor overload (manual reset), Phase control relay, No-contact scroll design and 100% motor cooled by suction gas Capacity control, Electrical controls(automatic, calibrated, ambient compensated, magnetic trip breaker, provides direct line-break compressor branch circuit, short circuit locked rotor and overload protection), Phase control relay (Protects unit from electrical supply malfunctions: Under voltage, phase reversal, phase loss and phase imbalance).

BACnet protocol capability Refrigerant 407c Capability of 50% tandem unloading Thermostat fitted to prevent thermal overload High EER low sound power level and high reliability Scroll hermetic type operating at 3550 RPM (60HZ)

B. 4- inch, three-way valve with electric valve actuator compatable with existing Johnson Controls AHU actuators and BacNet system.

C. Diverter valve for cool water loop.

PART 3 EXECUTION

3.01 GENERAL

A. Comply with the manufacturer’s published instructions for the installation of specified products, and installation requirements per the contract documents.

B. The Contractor is responsible for his/her own security arrangements including subcontractors, material, tools, equipment, and personnel.

C. Work in Progress: The Contractor shall be responsible for the protection and safe keeping of all work in progress prior to occupancy or final acceptance by the Government.

D. All methods, materials and workmanship provided by the Contractor under this contract shall, as a minimum, be performed in accordance with professional industry standards and shall comply with applicable codes for construction. Field measurements are the responsibility of the contractor.

3.02 FINAL TESTING AND INSPECTION.

A. Inspection of work to be performed by the NEFSCS facilities maintenance supervisor and COR. Any corrective action required as a result of the inspection will be accomplished prior to final monthly billing.

B. The Contractor may be notified of deficiencies in performance in writing by the COR. Oral deficiency notifications will be confirmed in writing. Prompt corrective action shall be taken by the contractor upon notice of deficiency.

C. The contractor shall advised that the Government when all work is completed. The Government will not accept the work until it determines that all work has been satisfactorily completed within the terms of the contract

3.03 CLEAN UP

A. Perform daily clean-up to collect all wrappings, empty containers, paper, and other debris from the project site. Upon completion, all debris must be disposed of in a legally acceptable manner. The Contractor shall ensure that the project area and areas adjacent to the project area are maintained in a clean and safe condition

3.04 ATTACHMENTS

A. Reference Drawing: Dunham Bush Chiller

3.05 APPENDIX

Appendix 1

ACRONYMS

Appendix 2

PROFESSIONAL AGENCIES, ASSOCIATIONS, CODES, COUNCILS, INSTITUTES, AND STANDARDS

*** END SECTION***

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