Statement of Work (SOW) Replacement of Existing HVAC System at

Deep Fork National Wildlife Refuge’s Headquarters

October 7, 2026

General: This is a non-personnel services contract to remove and replace the existing HVAC system for the Headquarters at Deep Fork National Wildlife Refuge, Oklahoma (DFNWR).

Description of Services/Introduction: The Contractor shall provide all personnel, equipment, supplies, facilities, transportation, tools, materials, supervision, and other items necessary to remove and replace the existing HVAC system with a new and updated system having proper installation and a manufacturer’s warranty at DFNWR Headquarters.

Place of Performance: The work to be performed under this contract will be performed at:

Deep Fork National Wildlife Refuge 21844 South 250 Road Okmulgee, OK 74447

Background:

Deep Fork National Wildlife Refuge Headquarters facility was built in 2011, it is approx. 3,000 Sq Ft with 7 office spaces, conference room and visitor contact station. The existing 2 Carrier heat pump systems Model # FE4ANB006 is at or near its life expectancy. The system was neglected for multiple years with little to no maintenance. Currently the HVAC system is unbalanced and has condensation at some of the vents. See below for current equipment specifications:

Current Equipment: Carrier Model # FE4ANB006 Unit 1 Serial # 4910A81854 Unit 2 Serial # 4710A84941 Volts 208/230 Motor HP ¾ Motor FLA 6.8 Phase/Hertz 1/60 Test Static 0.50 IN. W.C.

Refrigerant 410A DESIGN PSIG450 Date of Manufacture Nov 2010

Prod # 25HNA960A0033030 Model # 25HNA960A330 Unit 1 Serial # 1010E12771 Unit 2 Serial # 4410E07047

This contract supports removal and replacement of the existing HVAC systems with a new and updated system having proper installation and a manufacturer’s warranty.

Objectives:

• Remove existing equipment and replace with 2 Ruud heat pump systems (RH2VY6024STACNJ) and

2 Endeavor® Line Classic Plus® Series 5 Ton - 16 SEER2 - Heat Pump -R-454B (RD16AY60AJVCA) or equivalent.

• Add for return air and splitting returns to air handlers

• Install new Smart Thermostat and EcoNet

• Balance HVAC System

• Update and modify return ductwork to prevent a common return, proper airflow and system performance.

• Seal all ductwork in the attic and mechanical room to reduce air leakage and improve efficiency.

• Install new refrigerant (freon) line sets for the new equipment installation.

General Scope:

• Remove and provide replacement of the existing HVAC system servicing DFNWR’s Headquarters.

• Clean up and dispose of all removal, demolition, and installation waste from DFNWR property in legally approved recycling sites or disposal sites that complies with DEQ statues for HVAC disposal.

• Provide complete one-way transportation of the new equipment and personnel to the project site.

• Complete all work in accordance with industry standards and those specified by the manufacturer of the new equipment.

• Perform operational check-out of new HVAC system and submit a copy of the written test results to the site POC before requesting final inspection.

• Provide food and transportation for its employees. Drinking water and sanitary services will be made available at the project site.

• There are known electric, telephone, and water utilities existing in or near the construction area. If applicable, these will be marked via coordination with the Oklahoma 811 system prior to any digging or grubbing.

• Offerors are encouraged to visit the project site prior to submitting proposals to ascertain site conditions affecting the work and the HVAC items that will be replaced or disconnected and reconnected (contact POC for available times; see below).

Specific Tasks:

The Contractor will remove and provide replacement of the existing HVAC system servicing DFNWR’s Headquarters facility. Two Ruud heat pump systems (RH2VY6024STACNJ) and two Endeavor® Line Classic Plus® Series 5 Ton - 16 SEER2 - Heat Pump -R-454B (RD16AY60AJVCA) or equivalent. Update and modify return ductwork to prevent a common return, proper airflow and system performance. Seal all ductwork in the attic and mechanical closet to reduce air leakage and improve efficiency. Install new refrigerant (freon) line sets for the new equipment installation. Install two new smart thermostats and Econets.

Inspect, adjust, and test the HVAC air distribution system to ensure proper airflow and temperature consistency throughout the building. Service includes checking all supply and return ductwork, dampers, registers, grilles, and airflow performance to identify uneven temperatures, excessive static pressure, noise issues, or airflow restrictions.

Contractor will measure airflow at each supply register and return grille, evaluate system static pressure, and inspect duct sizing, duct connections, insulation, and air leakage. Adjustments will be made to balancing dampers and airflow settings to improve comfort and efficiency in all conditioned spaces.

Contactor will modify the existing return system by splitting returns to the handlers. Existing system only has one return for both units.

Work includes all necessary materials, labor, connections, and start-up of the new system.

Replace HVAC system:

• Lockout and tag out electrical services to all HVAC system equipment.

• Evacuate, disconnect, remove, and legally dispose of all existing HVAC components not to be reused, off DFNWR property and at a legally approved recycling site or disposal site that complies with DEQ state statues for HVAC disposal.

• In accordance with the federal RCRA reporting requirements, submit a written record to the site POC detailing the types of materials and quantities of each type that are recycled.

• Install and connect new replacement HVAC equipment in same locations as existing equipment. New equipment shall meet greater requirements of the existing equipment. Installation shall incorporate all manufacture installation instructions and standards of the HVAC industry. The equipment list includes:

o Contractor will install Two Ruud heat pump systems (RH2VY6024STACNJ) and two Endeavor® Line Classic Plus® Series 5 Ton - 16 SEER2 - Heat Pump -R-454B (RD16AY60AJVCA) or equivalent.

o Connect all electrical for new equipment and install/replace surge protector.

o Suction and liquid cooler lines will be soldered, and leak checked.

o Pull a vacuum and charge unit to factory recommended specs.

o Properly insulate, seal and cover all existing attic duct connections/vents and check for air leaks.

• Pressure tests all HVAC components and refrigerant lines per manufacturer’s recommendations and industry standards. Make detailed notes of the pressure amounts and times held for the project closeout report.

• Connect attic airducts to new air handler equipment in accordance with the manufacturer’s installation instructions. Contractors shall modify existing metal air ducts as required to connect to the new air handling equipment. Duct sealant and vibration dampening techniques shall be used per manufacturer's recommended specifications and industry standards.

• All equipment and associated airducts and refrigerant piping shall be properly supported for its full weight per manufacturer's recommended specifications and industry standards.

• Install new air filters (minimum MERV 10 rating)

• Construct new condensate drain systems, including P-traps and condensate float switches, as necessary to remove condensation from all installed equipment in accordance with manufacturer's recommended specifications and industry standards. Condensate will be discharged from building per the existing configuration. Ensure drain line properly drains air handler condensate.

Project closeout:

• Restore electrical service and perform startup testing and commissioning according to the equipment manufacturer’s instructions. This shall include evacuating and purging refrigerant lines and coils, charging the system with refrigerant, adjusting air flow rates, checking all operational equipment safety, and verifying the operations of the cooling mode, heating mode, defrost system, and wall controller functionality. Also ensure drain lines properly drain air handler condensate and that equipment shuts down properly if condensate does not drain.

• Provide a written report showing all items checked and certifying all heat pump operational modes operating in accordance with the manufacture’s specification for make and model of provided equipment.

• The Contractor will conduct a final walkthrough covering the operational and maintenance needs of all new equipment and will provide the manuals for that equipment.

General project execution:

• Project meetings:

o A pre-work meeting will be scheduled for a mutually agreeable date and time between the COR and Contractor.

o Progress meetings will be held onsite as determined by the site POC.

• Inspections:

o Inspection of items of work by the Government will not relieve the Contractor of the requirement to meet project specifications.

o For final inspection, notify the COR or site POC before the completion date so the Government can schedule the final inspection. The contractor’s superintendent shall be present during the final inspection.

• Delivery, storage, and handling:

o Delivery: protect products incorporated into the work from damage while in transit to the site o Products must be delivered in original unopened containers with manufacturer’s name, brand designation, and contents legibly indicated. The containers o Storage: no on-site storage of materials or equipment is allowed without approval of the site POC o Handling: load and unload products protecting them from damage. Any damage incurred will be at the sole responsibility and expense of the Contractor.

• Hours of Operation: The Contractor is responsible for conducting business, between the hours of 7:30AM and 4:00PM Central Time, Monday through Friday except Federal holidays or when the Government facility is closed due to local or national emergencies, administrative closings, or similar Government directed facility closings. Recognized Federal holidays are:

New Year’s Day Labor Day Martin Luther King Jr.’s Birthday Columbus Day President’s Day Veteran’s Day Memorial Day Thanksgiving Day Juneteenth Christmas Day Independence Day

• Site conditions:

o Work areas shall be roped off to alert unauthorized personnel of work in progress. Protect all existing property not indicated for removal, shall be protected. All damage by the Contractor’s activities shall be repaired by the Contractor at no additional cost to the Government.

o Potable water and electric power for construction is available. Contractor shall make any arrangements necessary for its use of water and power

• Identification of Contractor Employees: The Contractor’s employees shall wear clothing or badges that readily identify them as employees of the Contractor.

Products:

• Product basis: where specifications call out a specific product or manufacturer, it is understood.

that an equal or better product or manufacturer is acceptable, as approved in the submittals.

• All new installed equipment shall be capable of meeting or exceeding all specifications of the existing system.

• New installed equipment shall be operated by wall controllers in accordance with manufacturers’ recommendations. Existing wall controllers will be replaced if they do not meet manufacturers’ requirements.

Submittals:

• Product Data, Shop Drawings and all submittals must be emailed to COR and Cc the CO. All submittals must be approved before ordering equipment and materials.

Warranty:

• Contractor shall provide a comprehensive three-year warranty covering all labor, parts, accessories, materials and other work performed under the contract. The warranty period shall begin on the date of startup testing and commissioning. The contractor must acknowledge each notification and complete all required repairs within 24 hours to ensure timely resolution and prevent further disruption.

• Contractor shall provide a minimum of 5-year parts warranty on all HVAC equipment.

Contracting Officer Representative (COR):

The (COR) will be identified in this SOW and by separate letter. The COR monitors all technical aspects of the contract and assists in contract administration. The COR is authorized to perform the following functions:

• Assure that the Contractor performs the technical requirements of the contract.

• Perform inspections necessary in connection with contract performance.

• Maintain written and oral communications with the Contractor concerning technical aspects of the contract.

• Issue written interpretations of technical requirements, including Government drawings, designs, specifications.

• Monitor Contractor's performance and notifies both the Contracting Officer and Contractor of any deficiencies.

• Coordinate availability of government furnished property and provide site entry of contractor personnel.

A letter of designation issued to the COR, a copy of which is sent to the Contractor, states the responsibilities and limitations of the COR, especially regarding changes in cost or price, and estimates or changes in delivery dates. The COR is not authorized to change any of the terms and conditions of the resulting order.

END.