DRAFT_SOW Repair Dorm HVAC 248.pdf

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Statement of Work (SOW)

Project Title: Repair Dormitory HVAC Bldg 248 Project Number: GHLN23-6406

F.E. Warren AFB, Wyoming

9 April 2025

1. GENERAL REQUIREMENTS:

1.1. Conduct all work in accordance with the specifications, all applicable codes, and any construction drawings and details. The Contractor shall pay special attention to the FE Warren AFB Installation Facilities Standards (IFS) and any manufacture’s written recommendations.

1.2. The Contractor is responsible to verify site conditions, measurements, quantities, and materials needed to complete this project prior to submitting a proposal, ordering materials, and starting work activities. All materials including those concealed or covered shall be new and of the most suitable and highest grade and type for the intended use unless otherwise indicated.

1.3. Install all materials in strict accordance with the manufacturer's printed instructions and details:

rigid, secure, plumb, level, aligned, square and straight with suitable fastening devices.

1.4. The Contractor shall follow all Green Procurement mandates and submittal requirements. The government requires the use of recycled and recovered materials, bio-based products, energy, and water saving products, and environmentally preferable products. Energy Star, FEMP-designated, or EPA Water Sense labeled equipment, appliances, and fixtures are mandated in all cases unless specifically directed otherwise.

1.5. See AF Form 66 for required submittals. This may not be a totally inclusive list. When doubt exists on a product, submit it. Other submittals required per specifications may apply.

1.6. Any change in conditions or modification with this project, must be presented to the Contracting Office and approved by the Project Manager prior to changes. After the changes have been agreed upon, the contractors shall complete a FIELD CHANGE REPORT, processed through the contracting office. It will reflect whether additional costs will be incurred by the Government. It will also have all agreeing party’s signatures.

1.7. The Contractor is responsible for following Local, State, and Federal safety requirements. In addition to following any license and permit regulations, and fees that apply to this project.

1.8. The term “provide” means provide (or furnish) and install.

1.9. The term "replace" means remove existing material or items and furnish and install a similar new material as required to match existing adjacent material or items.

1.10. Dispose of all waste generated by this project according to all applicable regulations.

1.11. Contractor is required to obtain a “hot work” permit for any welding, cutting, grinding, brazing, torch or open flame, or any other spark generating equipment utilized, from the Base Fire Department

DRAFT DRAFT DRAFT

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(90 CES/CEF) prior to commencing any such work. Contractor is responsible for extending/updating “hot work” permit until such work is completed.

1.12. If any excavation or ground penetration is necessary, request and obtain 100% approval on a Dig Permit (AF Form 103) prior to any digging, trenching, or below grade construction work. The Contractor must maintain utility marking throughout the project. Contractor is responsible for extending/updating dig permit until digging, trenching, or below grade construction work is completed.

1.13. The Contractor is required to coordinate material storage, laydown, and staging areas with the 90 CES project manager.

2. PROJECT SCOPE:

2.1 The contractor shall provide all labor; materials, equipment, transportation, and supervision necessary to repair/replace the HVAC for dorm building 248. The work includes but is not limited to the following items of work: Replace all fan coil units (FCU), unit heaters (UH), and cabinet unit heaters (CUH), and associated piping, valves, actuators, controls, accessories, filters, insulation, etc., as required for the connection and proper operation of the new units to provide a complete and usable HVAC system. Replacement of piping and insulation is limited to the terminal connection of the units.

Install shutoff isolation valves to the hot and chilled water supply and return branch piping to each FCU on the first and second floor. All shutoff valves shall be installed before replacing any FCU’s to minimize the number of times the building/system is drained. Shutoff valves to FCU’s in dorm rooms shall preferably be in the hallway with the drop ceiling tiles, before the pipe penetrates the into the dorm room, or other easily accessible agreed upon location. Shutoff isolation valves to be used with the replacement of the FCU’s later.

All FCU’s and CUH’s shall be Trane or approved equivalent. Replace all thermostats for all FCU’s. All equipment shall meet BACnet direct digital control specifications and tie into the energy monitoring and control system (EMCS) on base. In addition, the contractor shall replace all pneumatic controls, including but not limited to the air dampers and chilled water control valves, for the 3-air handling units (AHU) in the attic to digital controls that tie into the EMCS. Additionally, install 3-way control valves on the heating water coils for the AHU’s to match the chilled water control valves; controls should be digital and tie into the EMCS as well.

Ensure HVAC service to the parts of the building not being replaced that day be kept active and running as much as possible during replacement of units. Minimize down time as much as possible. Units once removed shall be replaced the same day to prevent heating/cooling issues. Flexibility will be allowed to shut down an individual unit for multiple days, up to 5 working days, with prior coordination with project manager and favorable weather conditions for adequate temperatures to the room. Coordinate with 90 CES project manager and Dorm manager prior to the start of project, taking any areas offline.

2.2 Environmental Requirements:

The use of any hazardous materials shall be submitted through a ‘Hazardous Materials Authorization Request’ form and approved by 90 CES/CEIE prior to use.

Follow Local, State, and Federal laws for the removal of any hazardous materials. In accordance with EPA, refer to Environmental Protection specification 01 57 19.05 32 for any hazardous materials reclamation or disposal.

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Asbestos and Lead Paint: Refer to included hazardous material survey reports for detailed findings and analysis on record for building 248. Should any of the work require disturbance of any other building material not identified in the reports all applicable RPA, OSHA, State and Federal laws and regulations will be followed to analyze the material and remediate the issue.

If potentially hazardous materials such as asbestos are encountered, provide sampling and laboratory test results to Project Manager for approval. Samples should be taken by a properly trained and accredited asbestos professional (inspector). An advance 10-day Notification to WY DEQ/AQD will be required prior to any abatement work being accomplished. Any asbestos waste generated must be disposed of properly and be manifested through 90 CES/CEI at building 321.

Mold Remediation: Some surfaces may contain mold. When surfaces containing mold are present the effective way to clean mold is to use detergent solutions which physically remove mold. Use a commercially available detergent marketed for mold cleanup that include an EPA-approved antifungal agent.

2.3 Historical Cultural Resources Requirements:

Building 248 is listed on the National Register of Historic Places and is a National Historic Landmark.

Design and specifications for the work to be done on this building must meet the requirements of the Secretary of the Interior’s Standards for Historic Preservation and must be approved by the Wyoming State Historic Preservation Office (WY SHPO) and the federal Advisory Council on Historic Preservation (ACHP). All work to the exterior of the building and alternation to any historic elements of the building must be coordinated and approved through 90 CES and F.E. Warren’s Cultural Resources Manager before installation. Design documents shall be provided to the Cultural Resources Manager, to send to WY SHPO, to ensure that all stipulations are adhered to.

2.4 Safety Requirements:

The safety requirements will be the same throughout. Follow the Accident Prevention Plan (APP) and Activity Hazard Analysis (AHA) the Contractor has created for the entirety of the project. All regulations pertaining to safety as noted in OSHA Standards, applicable AFOSH Standards, and base regulations shall be strictly adhered to by the contractor. Care shall be exercised in connection with the operation of vehicles and other equipment on the site. Ensure appropriate fall protection for all workers.

3. WORK SCHEDULE & PERFORMANCE PERIOD:

Site work hours shall be from 7:30 AM to 4:30 PM. Workdays are Monday through Friday except federal holidays. Coordinate with the Project Manager and the Contracting Officer (90 CONS) on specific building hours, or if additional/off hours are required. Work start date shall be coordinated with user and 90 CONS. The performance of period (PoP) for this project will be 335 days.

In the case of the winter season, the Contractor will notify the Government their intent to stop operations due to weather. 90 CES will validate that the weather no longer allows work to be performed within the specifications. The project will be placed into suspension and the remaining number of PoP days will be documented. When the suspension is lifted, a new completion date will be established based on the remaining PoP days.

4. WORK AREA ACCESS:

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Building is currently occupied; plan on access to 1-2 apartments at a time. All public spaces including hallways/laundry area and basement to be always accessible. Close coordination with project manager, and dorm facility managers will be required, and necessary, to avoid any project delays.

5. PROTECTION OF GOVERNMENT PROPERTY & SITE MAINTENANCE:

The Contractor shall protect all areas, materials, and equipment around the work site form damage or loss. Special care should be given to the couches, beds, kitchen equipment and personal effects of the dorm room occupants.

All work areas will be cleaned of debris daily. Leave facility and work areas in a clean condition ready for use. All work shall be left free of blemishes and defects. Construction marks are not acceptable on any exposed finished surface. Pre-drill holes as necessary. Protect the existing facility, sidewalks, and landscaping from damage due to equipment or personnel. The contractor shall promptly remedy all damage or loss thereto, at no cost to the Government.

Prior to taking any fan coil units or cabinet/ unit heaters offline for replacement; coordinate with 90 CES to ensure that temporary heating/cooling is in operation if needed.

6. SPECIFICATIONS OF WORK:

Principle features of work: Refer to existing drawings and schedules. The project will include, but not be limited to the following items of work. This scope is a general overview of intended work.

General Conditions

1) Provide all construction survey and layout.

2) Provide as-built drawings which reflect final configurations to 90 CES.

3) Provide O&M manuals and Startup/TAB/Commissioning Report.

4) Contractor to provide all safety signage and materials as required.

5) Provide temporary protections for existing walls, flooring, and MEP systems as required for construction and movement of material into and out of the building.

6) Provide floor protection from work area to nearest exterior exit for debris removal.

7) Work must be accomplished in accordance with the UFGS specifications section 23 for HVAC.

8) Provide an Owner training to 90 CES HVAC personnel on system characteristics.

02 Existing Conditions

1) All demo materials are to be properly disposed of off base.

2) Protect the existing facility including brickwork, sidewalks, and landscaping from damage due to equipment.

Protect sidewalks and window from equipment damage.

3) Provide dumpster on site or remove debris daily off site. Dumpster location to be approved by facility manager and MACC project manager.

4) Replace any damaged ceiling tiles from installation of new units.

5) Repair/replace dry wall as needed for installation of new units. Paint to match current surroundings.

07 Thermal and Moisture Protection

1) Install insulation on heating piping sections to the new units. Length of insulation on piping required depends on method of installation of new units.

23 Heating, Ventilating, and Air Conditioning

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1) Assume same capacity, performance, and size as existing units as detailed in the record drawings and equipment schedule. Field verify to ensure accuracy of current equipment installed.

2) Install shutoff isolation valves for FCU.

3) Replace 55-fan coil units (FCU) (Existing FCU Model: Trane).

4) Replace 11-unit heaters (UH) (Existing UH Model: Vulcan).

5) Replace 6-cabinet unit heaters (CUH) (Existing CUH Model: AirTherm).

6) Finishes and locations of new equipment installed shall match current items they are to replace.

7) Piping package for FCU shall include at a minimum: strainer, P/T port, 3-way control valve and have union connections.

8) Check lines for leaks, repair any leaks found.

9) Vent or flush air from the piping system.

10) Refill glycol in all system reservoirs to 30% concentration.

11) Adjust and balance air flows for the FCU as detailed in the drawings for the room areas.

12) Adjust and balance water coils for the FCU for proper heating and cooling.

13) FCU inputs/controls back to the EMCS shop at a minimum should include air supply temperature, valve control to hot and cold-water coils, room/zone temperature, and status of the fan.

14) Replace pneumatic controls to digital for AHU in attics, tie into EMCS.

15) Add control valves for heating water for AHU in attics.

16) Test whole system to ensure concise and cohesive operation of the unit replaced with overall HVAC system in place.

26 Electrical

1) 115 VOLT 60 Hz single phase available existing units.

2) Provide power to units and controls as required.

ATTACHMENTS:

Attachment A – F.E Warren AFB BACnet Direct Digital Control Systems for HVAC

Attachment B – F.E. Warren Base standards Equipment /IFS (This full FE Warren IFS can be found at this website: https://www.wbdg.org/airforce/ifs/fe-warren-afb-ifs )

Attachment C – Telecommunication Installation Criteria (TIC)

Attachment D – Project Specifications

SPECS of Note:

The Following is a list of specifications and references that should be paid special attention to for this project but is not a comprehensive or limiting list. See Attachment D for the following.

01 30 00 General Requirements

01 57 19.05 32 Environmental Specifications, Jan 2023

23 00 00 Air Supply, Distribution, Ventilation, and Exhaust Systems (Attached)

23 03 00.00 20 Basic Mechanical Materials and Methods

23 05 15 Common Pipping for HVAC

23 05 93 Testing, Adjusting, and Balancing for HVAC

23 07 00 Thermal Insulation for Mechanical Systems

23 09 00 Instrumentation and Control for HVAC (FE Warren BACNET Spec) https://www.wbdg.org/airforce/ifs/fe-warren-afb-ifs

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23 09 23 Instrumentation and Control Devices for HVAC

23 09 23.02 BACnet Direct Digital Control for HVAC and Other Building Control Systems

23 23 00 Refrigerant Piping (if there is refrigerant going to the FCUs)

23 25 00 Chemical Treatment of Water for Mechanical Systems

25 05 11 Cybersecurity for Facility-Related Control Systems

25 08 10 Utility Monitoring and Control System Testing

26 00 00.00 20 Basic Electrical Materials and Methods (MACC)

26 05 00.00 40 Common Work Results for Electrical (MACC)

26 05 19.10 10 Low Voltage Insulated Wire and Cable

26 05 71.00 40 Low Voltage Overcurrent Protective Devices

26 08 00 Apparatus Inspection and Testing

26 20 00 Interior Distribution System

26 28 01.00 10 Coordinated Power System Protection

UFC 3-410-01 Heating, Ventilating, and Air Conditioning Systems

UFC 3-410-02 Direct Digital Control for HVAC and Other Building Control Systems

END OF REQUIREMENTS