Attachment_1_-_BOWA_HVAC_SOW_09-13-2022.pdf

Statement of Work (SOW)

PMIS #326654

Phase 1: Remove and Replace HVAC System Phase 2: Configure and Install Complete HVAC System

Booker T. Washington National Monument

Prepared By: Connie B. Mays Date: September 9, 2022

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Table of Contents

1.0 Project Description/Objectives

2.0 Background

3.0 Required Submittals and Approvals (After

Contract Award)

4.0 Specific Work/Tasks

5.0 Government Furnished Equipment

6.0 Special Conditions / Requirements

7.0 Performance Period/Schedule Requirements

8.0 Project Closeout

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Phase 1: Remove and Replace HVAC System Phase 2: Configure and Install Complete HVAC System

Booker T. Washington National Monument

1.0 PROJECT DESCRIPTION / OBJECTIVE:

The primary work of this project consists of HVAC related work for two buildings located at the Booker T. Washington National Monument, 12130 Booker T. Washington Hwy, Hardy, VA 24101. The work will be broken down into two (2) phases and the following is a summary of the scope for the two (2) building in the park:

1.1. Phase 1 (Headquarters): Remove, replace in-kind, and dispose of existing HVAC equipment; clean existing duct work and registers; reconnect to existing duct work, and electrical.

1.2. Phase 2 (Visitor Center): Remove and dispose of existing boiler, and associated equipment at the visitor center; Configure and Install new HVAC system, including electrical work, any duct work needed, terminal devices which includes thermostats, grills, and registers; Remove and properly dispose of a 2,000 gallon heating fuel tank per EPA’s Spill Prevention Control, and Countermeasure (SPCC) regulation (40 CFR Part 112). All duct work to be sealed per pressure classification.

2.0 BACKGROUND:

2.1. Phase 1 (Headquarters): The existing equipment was installed in 1993 and has seen subsequent repair since that time due to 20-year life expectancy. Despite repairs, the unit continues to need additional repairs and parts needing to be replaced.

2.2. Phase 2 (Visitor Center): The existing equipment was installed during the mission 66 era and was last updated in 1988. It has an oil fire boiler for heat and a chiller system for cooling. This system requires routine service and maintenance labor hours. This system also requires R22 refrigerant which is challenging to locate as it is being phased out. By installing a new more efficient system will eliminate the need for heating oil used in the current system.

2.3. History of the Mission 66 Buildings Initiative: The National Park Service’s Mission 66 Buildings was initiated in 1956; the aim of Mission 66 was to construct park facilities in preparation for the 50th anniversary of the National Park Service in 1966. As Mission 66 era facilities age they require rehabilitation or replacement. The National Park Service needs to assess the resources for potential historical significance.

The Visitor Center is a Mission 66 structure that has been determined eligible for listing on the National Register of Historical Places.

The contractor will need to submit a ductwork layout plan for the Visitor Center as soon as possible so as to not delay work at Visitor Center. The plan will be reviewed by the Contracting Officer Representative (COR).

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3.0 REQUIRED SUBMITTALS/TRANSMITTALS AND APPROVALS (AFTER CONTRACT

AWARD)

3.1. Submittal Procedures:

3.1.1. Submittals/Transmittal documentation/data shall be attached to the Transmittal Form (CM-16) National Park Service (NPS) submitted to Contracting Officer and COR. Allow 7 days for review and approval. Submittals/Transmittals include but not limited to the following:

3.1.2. Transmittal - Site Specific Health and Safety Plan (Approval required before Notice to Proceed (NTP))

3.1.3. Transmittal - Schedule/Statement of Values (SoV) (Approval required before NTP)

3.1.4. Transmittal - Work Plan (Approval required before Notice to Proceed)

3.1.5. Submittals - Materials

3.1.6. Submittals/Transmittals – Operational Manuals, warranties, etc.

3.2. Any proposed material changes by the Contractor to the specified materials shall be submitted in writing to the Contracting Officer along with detailed information about the material, the justification for the proposed change.

4.0 SPECIFIC WORK BY PHASE/TASKS:

Provide all labor, materials, tools, equipment, supervision, services, etc., necessary for and incidental for the demolition and proper removal of HVAC equipment, removal of boiler, and installation of new HVAC systems and ductwork in accordance with the specifications as stated herein, and/or required to deliver to the Owner a complete installation ready for continuous and satisfactory operation.

4.1. Submit a work plan for both the Headquarters Building (Phase I) and Visitor Center (Phase II).

4.2. Remove and properly dispose of existing boiler and its associated equipment (Phase II).

4.3. Remove and properly dispose of existing HVAC systems (Phase I & Phase II).

4.4. All materials and equipment stored onsite shall be properly and effectively protected by the Contractor during construction.

4.5. Configure and install the new equipment at the Headquarters building and the Visitor Center.

4.6. Materials and installation must meet current SMACNA (Sheet Metal and Air Conditioning Contractors National Association, Inc.) fabrication and installation instructions.

4.7. Provide two copies of the manufacturer’s warranties, one digital copy of the manuals and drawings. The contractor is to provide operation training to park maintenance upon

P a g e | 5 completion of work prior to contract completion. Schedule training with the COR at least three (3) workdays in advance.

4.8. The Contractor shall guarantee labor, materials and equipment provided under this statement of work against defects for a period of 1 year after the date of the final acceptance or at the completion date of all punchlist items, whichever occurs last, using factory authorized service representatives.

4.9. Provide an electronic set of CAD drawings and one (1) .pdf copy for the layout of the new HVAC, associated equipment, and ductwork for each building (Phase).

4.10. Closeout

Phase 1 (Headquarters Building):

The current system will be replaced with the following components.

NOTE: The new unit is to match existing Supply and Return ductwork connection dimensions.

Demolition: The current HVAC unit shall be removed in accordance with the EPA and NPS guidelines. The existing ductwork will remain; however the ductwork shall be cleaned. There shouldn’t be any changes necessary to the electrical system.

Heat Pumps shall have:

A. The refrigeration system consisting of a high efficiency compressor, pressure safety switches, filter drier, refrigerant sight glass, moisture indicator, charging connections, and R410A refrigerant.

B. Auto restart feature to automatically restart the system after a power failure.

C. Utilize a short cycle control to prevent compressor short-cycling and compressor wear.

D. Internal Thermal Overload Protection

E. Defrost on demand

F. Reversing Valve

G. Configuration settings shall be factory-set based on the factory defined component operation.

H. Run-tested at the factory prior to shipment and shipped with a charge.

I. Comply with ASHRAE (American Society of Heating, Refrigerating and Air- Conditioning Engineers) 15 standards.

J. 18 SEER and above

K. Comply with minimum COP/efficiency levels according to ASHRAE/IESNA 90.1.

L. Comply with NFPA 70.

The heat pump installation shall consist of a minimum of:

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A. Reconnection of all duct work, and duct work is to be sealed per pressure classifications

B. Reconnection of all electrical low voltage control wiring

C. High voltage electrical wiring

D. System start up and balance

E. Controls to match new heat pump conditions

F. Required Line sets

G. Condensation drain lines

H. Smoke detection on duct work

I. Thermostat – programmable electronic night setback heat pump thermostat with 7-day programming capability

The unit shall be a 15 ton or equivalent for a 5,514 sq ft building. The unit is to be assembled and placed on the existing 7 ft x 11 ft platform.

Contractor must test the system in the presence of the Government prior to final inspection. .

Schedule with the COR three (3) workdays in advance of desire test date.

Warranty: The new heat pump shall have a minimum of ten (10) year commercial warranty; the compressors shall have a minimum of five (5) year commercial warranty all other parts and labor shall have a one-year workmanship warranty.

Phase 2 (Visitor Center):

Demolition:

Fuel Oil Tank: Remove and properly dispose of the 2,000-gallon heating fuel tank in accordance with the EPA’s Spill Prevention Control, and Countermeasure (SPCC) regulation (40 CFR Part 112).

The current system shall be removed in accordance with the EPA and NPS guidelines.

The existing ductwork will remain, however the ductwork shall be cleaned.

Heat Pumps shall have:

A. The refrigeration system consisting of a high efficiency compressor, pressure safety switches, filter drier, refrigerant sight glass, moisture indicator, charging connections, and R410A refrigerant.

B. Auto restart feature to automatically restart the system after a power failure.

C. Utilize a short cycle control to prevent compressor short-cycling and compressor wear.

D. Internal Thermal Overload Protection

E. Defrost on demand

F. Reversing Valve

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G. Configuration settings shall be factory-set based on the factory defined component operation.

H. Run-tested at the factory prior to shipment and shipped with a charge.

I. Comply with ASHRAE 15.

J. 18 SEER and above

The heat pump installation shall consist of a minimum of:

A. * Will consist of configuration to determine location of new duct work.

*NOTE: The new HVAC system design is to match existing duct, pipe, and register locations wherever possible. The new system design is to reuse existing chases to run duct and pipe between floors. Construction of new chases will not be permitted. Rooms not currently served by ductwork may be served by ductless split units where possible.

Since the building is a historic site, alterations to the interior fabric must be kept to a minimum and must not alter character-defining features. Any new interior and exterior equipment should be located in such a way as to minimize visual intrusion and should be located in existing mechanical areas wherever possible.

B. Main trunk lines shall be galvanized steel metal with flex runout to grills.

C. Remove and replace existing duct work, minus auditorium

D. New electrical hook up

E. Supply and return registers

F. Smoke detection on duct work

G. Thermostat – Programmable electronic night set back heat pump thermostat with 7-day programming capability

Unit must be equivalent for a 4,580 sq ft building, wired, charged with R-410A HFC refrigerant and run tested at the factory.

Contractor must test the system in the presence of the Government prior to final inspection.

Schedule with the COR three (3) workdays in advance of desire test date.

Warranty: The new heat pump shall have a minimum of ten (10) year commercial warranty; the compressors shall have a minimum of five (5) year commercial warranty all other parts and labor shall have a one-year workmanship warranty.

5.0 GOVERNMENT FURNISHED EQUIPMENT:

5.1. The Government will supply mobile (Portable) Heating/Cooling Units for the Government staff and visitors as needed during demolition and installation of the units.

6.0 SPECIAL CONDITIONS / REQUIREMENTS:

6.1. Government personnel will be occupying buildings while work takes place during the entire contract period. Coordinate with the COR and the CO when work may affect the onsite employees in the applicable facility during work operations in an effort to minimize conflicts. Performance of the work by the contractor should not interfere with the

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Government’s day-to-day operations. Maintain existing exits, unless otherwise indicated. Work areas shall be clean at the end of the workday.

6.1.1. Do not close or obstruct walkways, corridors, roads, and other adjacent facilities. Closures of roads or other access means will only be permitted when required upon written approval from the CO. Proper directional signage and barriers are to be provided by the Contractor.

6.1.2. Keep entrances serving premises clear and available to the Park employees, volunteers, and emergency vehicles at all times. Do not use these areas for storage of materials. Contractor must coordinate with the COR for an approved lay down area.

6.1.3. Contractor shall ensure there is proper dust barriers in place to mitigate any interior dust and to ensure clean air be available to occupants at all times.

6.1.4. Repair areas damaged/degraded by the work.

6.2. Superintendence. Contractor shall always have a designated Superintendent onsite during work performance by their own employees and its subcontractors. The Superintendent/Project Manager duties shall include the overall management of the project, coordination of the subcontractor’s work, and liaison with the CO and COR. No work shall be performed without the presence of the Superintendent on the job site.

6.3. The sites for contract performance do have special access requirements, and require coordination with the COR. Contractor shall coordinate in advance with the COR in areas where there are IT equipment and employee resources used in performance of their work. Do not disturb areas beyond where the work is to be performed.

6.4. Contractor Refuse Disposal.

6.4.1. Unless otherwise specified by the CO or COR, all removed material is to be disposed of outside the park at an approved landfill, recycled, or disposed of at other locations in accordance with federal, state, and local regulations.

6.4.2. Refuse generated by Contractor in the performance of this contract; the Contractor will be responsible for providing its own dumpster. The dumpster size and staging location shall be approved and coordinated with the Contracting Officer’s Representative (COR). Contractor must not leave refuse on the ground or around the dumpster should it reach or be at full capacity. The contractor or subcontractors may not use the Government’s dumpsters. Upon completion of work at each building the worksite will be cleaned and free of debris.

6.5. Comply with all applicable National Park Service regulations and directives pertaining to security, safety, occupational health, fire, traffic, and personnel clearances while on the premises of the park. If in doubt contact the COR.

6.6. Fire Watch. A capable and qualified person shall be placed in charge of fire protection. The responsibilities shall, at a minimum, include locating and maintaining fire protective equipment.

6.6.1. Hazard Control: Take all necessary precautions to prevent fire during work.

Do not store flammable or combustible liquids in historic structures or existing

P a g e | 9 buildings. Provide adequate ventilation during use of volatile or noxious substance.

6.6.2. Locate internal combustion equipment so that exhausts discharge well away from combustible materials.

6.6.3. Welding: Welding or cutting by torch will not be permitted in or on the structure unless approved in advance by the CO.

6.7. Smoking is not permitted within any Government building or within 25 feet of entrances, operable windows, or outdoor air intakes. Smoking shall only be allowed in smoking areas as designated by the park.

6.8. Utilities.

6.8.1. The Government will provide Contractor access to water and electricity in the performance of this contract.

7.8.2. The Park authorizes Contractor to use selected restroom facilities at the park during the building’s operational hours.

6.9. Contractor will reduce environmental risks, promote pollution prevention, and meet all environmental regulatory requirements during the execution and completion of the contract.

6.10. Work Area Damage. After the work has been completed, any Contractor-caused damages to Government-owned structures, facilities, roads, walks, lawns, etc., shall be properly patched, repaired, or replaced to the complete satisfaction of the COR. Any holes, cuts, breakages, and damages made in finished surfaces of the area in which work has been accomplished, shall be properly repaired and the disfigured areas otherwise repaired and resurfaced to the complete satisfaction of the COR.

7.0 PERFORMANCE PERIOD / SCHEDULE REQUIREMENTS:

7.1. Performance Period.

All work is to be completed within one hundred calendar days (100) from the date established by the Notice to Proceed by the Contracting Officer based on an approved schedule, statement of values, site specific health and safety plan, and work plan. The contractor must submit material submittals for approval as soon as possible after award to mitigate lead times on material and equipment.

7.2. Work Hours.

Work shall be performed between the standard hours of 7:00 a.m. and 3:30 p.m. local time, Monday through Friday, excluding federal holidays, and except when otherwise indicated by the Contracting Officer. If desiring to work outside the standard hours, Contractor must submit a written request to the CO at least three (3) workdays prior to the proposed performance of work. The written request should state the proposed performance of work, day/days, time/amount of work, and reason why authorization should be granted to perform work during non-standard hours. Work outside the standard hours is prohibited unless approved by the CO. Work during non-standard work hours shall be at no additional expense to the Government.

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7.3. Federal Holidays:

New Year’s Day January 1st Martin Luther King Day 3rd Monday in January Presidents’ Day 3rd Monday in February Memorial Day Last Monday in May Independence Day July 4 Labor Day 1st Monday in September Columbus Day 2nd Monday in October Veterans’ Day November 11 Thanksgiving Day 4th Thursday in November Christmas Day December 25

8.0 PROJECT CLOSEOUT:

8.1. Shop Drawings and Material Lists

8.1.1. Complete shop drawings and material lists shall be submitted by the Contractor for the approval of the COR in accordance with the requirements of this document and the contract.

8.1.2. Complete shop drawings showing dimensions, materials, arrangements, and other pertinent data shall be included.

8.1.3. Original manufacturer’s data and specification sheets for all equipment, devices, etc. Annotate descriptive data to show specific model, type and size of each item.

8.2. Provide the Government all warranties and a complete set of manufacturers manuals as specified above in this document and the contract.

8.3. Work Area Cleanup

Prior to vacating the site, all garbage/refuse, unused materials shall be removed and disposed of in an appropriate manner offsite. Any damage to NPS property (vegetation, turf, gravel road) shall be repaired to the satisfaction of the Contracting Officers Representative and Contracting Officer.

8.4. Final Inspection and Acceptance Of Work

8.4.1. When all work has been completed, the Contractor shall contact the COR to arrange the final inspection and coordinate three (3) workdays in advance. Final inspection will be conducted on site.

8.4.2. The Contractor will be notified of any deficiencies found during the final inspection.

A punchlist will be generated and issued to the contractor. After all deficiencies noted on the punchlist have been corrected and all required closeout submittals have been forwarded to the COR and approved, the Contracting Officer will issue a letter of final acceptance and request the release of claims.