A04__Replacement_of_(2)_Two_HVAC_Systems_at_TUIN_Maintenance_Building_2026_SOW.pdf

NATIONAL PARK SERVICE

Region IR2

Tuskegee Institute / Tuskegee Airmen National Historic Site

PROJECT NAME:

Cyclic Replacement of (2) Two HVAC Systems at TUIN Maintenance Building

PMIS NO.:

317716

PEPC No.:

100720

Tuskegee Institute/Tuskegee Airmen National Historic Site

Tuskegee, AL 36088

Statement of Work

Cyclic Replacement of (2) Two HVAC Systems at TUIN Maintenance Building

TABLE OF CONTENTS

1. SCOPE INTRODUCTION

2. PROJECT REQUIREMENTS

3. PROPOSED MECHANICAL EQUIPMENT

4. SPECIFICATIONS

5. BIDDERS TO VISIT SITE

6. RESPONSIBILITY FOR EMPLOYEES

7. DELIVERABLE

8. CONTRACT PERFORMANCE PERIOD

9. WORKING HOUR RESTRICTIONS

10. PAYMENT

11. Support Pictures or Documentation

1. Scope Introduction:

Tuskegee Institute National Historic Site is located at 1600 Boy Scout Circle, Tuskegee, Al. 36088 and is managed by the National Park Service and is the only national park located on a fully functioning college campus, Tuskegee University. The park is responsible for both the George

Washington Carver Museum and "The Oaks," home of Booker T. Washington.

The Tuskegee Institute National Historic Site in Tuskegee, Alabama, commemorates the contributions of African American men George Washington Carver and Booker T Washington to many inventions and discoveries to help the Medical and Technological advances we have today, the GWC Museum and BTW “The OAKS” Home is now operated by the National Park Service to interpret their history and achievements.

The TUIN park’s mission is to protect, preserve, and interpret the natural, cultural, and historical resources in its care for the benefit and inspiration for present and future generations.

2. PROJECT REQUIREMENTS:

Technical Proposal with project schedule to describe the plan to complete the project.

Contractors are encouraged to provide detailed and specific information on their technical proposal for the project. This document shall address the contractor’s plan to complete each and all the six (6) bulleted tasks identified below. This document allows the review of the contractor’s plan to ensure the contractor possesses a thorough understanding of what is required to complete the work. The Technical Proposal shall address what person/group/subcontractor is doing, what, and in what order with expected time durations. At a minimum, proposed persons/contractors shall be listed as will perform the following tasks:

o Listing of all personnel, experience, and subcontractors o Proposed construction schedule and timing of activities.

o Construction Safety o Field measurement / verification process(es) o Proposed HVAC equipment to be provided o HVAC demolition, new installation, and testing

A Technical Proposal is required as part of the proposal package and shall also be the basis for a Technical Approach. The Technical Approach shall be submitted and approved by the CO and COR prior to starting any work.

a. After the project award, the contractor shall complete a site visit where physical measurements of the HVAC equipment, all related components and associated utilities shall be completed for field verification. A report shall include a detail of all information and measurements taken and with, if applicable, notations where field data differs from SOW. This is required as a post award submittal report. The existing HVAC equipment to be replaced is noted below in this Statement of Work. No work shall be completed prior to the summary report submittal is approved.

b. All permitting requirements and associated costs are the responsibility of the contractor. All requirements to follow and complete the permit through construction and permit closeout is the responsibility of the contractor.

Prepare and submit submittals required by this SOW and individual specification sections.

All submittal approvals are required before commencement of work.

Approved Equals:

For each item proposed as an "approved equal," submit supporting data, including:

a. Drawings and samples as appropriate.

b. Comparison of the characteristics of the proposed item with that specified.

c. Changes are required in other elements of the work because of the substitution.

d. Name, address, and telephone number of vendors.

e. Manufacturer’s literature regarding installation, operation, and maintenance, including schematics for electrical and hydraulic systems, lubrication requirements, and parts lists. Describe availability of maintenance service and state source of replacement materials.

A request for approval constitutes a representation that Contractor:

a. Has investigated the proposed item and determined that it is equal or superior in all respects to that specified.

b. Will provide the same warranties for the proposed item as for the item specified.

c. It has been determined that the proposed item is compatible with interfacing items.

d. Will coordinate installation of an approved item and make changes required in other elements of the work because of the substitution.

e. Waives claims for additional expenses that may be incurred because of the substitution.

c. A Contractor Safety Plan is required for this project. Refer to the Safety and Environmental Compliance Section of this document.

d. Contractors shall have limited use of the site for construction operations. Do not disturb portions of the project site beyond areas in which the work is indicated.

Confine parking and storage of materials to locations identified by NPS.

e. Complete removal of existing HVAC air handler and condensing unit.

Construction and demolition debris shall be disposed of in accordance with an approved Waste Management and Disposal Plan. Provide quantities of all construction and demolition debris to COR for NPS reporting. For help establishing the NPS requirements, you can visit Denver Service Center Workflows website, 4.0 Construction Documents (DBB) - (U.S.

National Park Service) (nps.gov) and download the Division 1 specification – 017419 Construction Waste Management and Disposal.

f. Furnish and install a (2) 5 Ton 18 SEER new heat pump split system, electric heater kit and controls per requirements listed below. Provide new duct connections, from air handlers to existing ductwork. Rework as necessary.

g. Provide a new pad for the outdoor condensing unit (2).

h. Provide for and install new refrigerant line sets. Verify with COR for exact routing.

i. Replace the primary drain line with the air handler with P-trap and inline drain safety switch.

j. Existing power connections to be reworked as necessary for new installation. Provide new electrical whips at outdoor condenser.

k. New touch screen thermostats (3) with 3 Zones throughout the building

l. Provide a test and balance after equipment is installed

m. Provide for one (1) year compressor warranty with five (5) year warranty on parts, commercial industry standard.

n. Site cleanup.

3. PROPOSED MECHANICAL EQUIPMENT

Equipment is specified as a 2-for-2 swap of existing HVAC equipment and is intended as the Standard of Quality required for this project. NPS reserves the right to be the final authority on the acceptance or rejection of any or all bids, for proposed alternate equipment or materials that has met ALL specified requirement criteria. Failure to submit substitution package, or any portion thereof requested, will result in immediate disqualification and consideration for that contractor’s request for manufacturer substitution.

BRAND – AMERICAN STANDARD OR LIKE KIND

https://www.nps.gov/dscw/dbbcondocs.htm https://www.nps.gov/dscw/dbbcondocs.htm

SYSTEM TYPE – HEAT PUMP SPLIT SYSTEM

IEER rating – 18 SEER Ton- (2) 5ton

4. SPECIFICATIONS

COMMON WORK RESULTS FOR HVAC

PART 1 - GENERAL

1.1 DESCRIPTION

A. The requirements of this Section apply to all sections of Division 23, HEATING, VENTILATING, AND AIR CONDITIONING (HVAC).

B. Definitions:

1. Exposed: Piping, ductwork, and equipment exposed to view.

2. Exterior: Piping, ductwork, and equipment exposed to weather be it temperature, humidity, precipitation, wind, or solar radiation.

C. Abbreviations/Acronyms:

1. ac: Alternating Current

2. AC: Air Conditioning

3. ACU: Air Conditioning Unit

4. ACR: Air Conditioning and Refrigeration

5. AI: Analog Input

6. AISI: American Iron and Steel Institute

7. AO: Analog Output

8. ASJ: All Service Jacket

9. AWG: American Wire Gauge

10. bhp: Brake Horsepower

11. Btu: British Thermal Unit

12. Btu/h: British Thermal Unit Per Hour

13. CFM: Cubic Foot Per Minute

14. COR: Contracting Officer’s Representative

15. CPD: Condensate Pump Discharge

16. CPM: Cycles Per Minute

17. CPVC: Chlorinated Polyvinyl Chloride

18. CRS: Corrosion Resistant Steel

19. dB: Decibels

20. dB(A): Decibels (A weighed)

21. DWV: Drainage, Waste and Vent

22. F: Fahrenheit

23. FAR: Federal Acquisition Regulations

24. MBtu/h: 1000 Btu/h

25. MBtu: 1000 Btu

26. MFG: Manufacturer

27. SPEC: Specification

1.2 RELATED WORK

A. GENERAL REQUIREMENTS.

B. CONSTRUCTION WASTE MANAGEMENT.

1.3 APPLICABLE PUBLICATIONS

A. The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by the basic designation only. Where conflicts occur these specifications and the NPS standard will govern.

B. Air-Conditioning, Heating, and Refrigeration Institute (AHRI):

430-//2020// ........................... Performance Rating of Central Station Air-Handling Unit

Supply Fans

C. Air Movement and Control Association (AMCA):

410-//1996// ........................... Recommended Safety Practices for Users and Installers of

Industrial and Commercial Fans

D. American Society of Mechanical Engineers (ASME):

B31.1-//2020// ....................... Power Piping

B31.9-//2020// ....................... Building Services Piping

BPVC Section IX-//2021// Welding, Brazing, and Fusing Qualifications

E. American Society for Testing and Materials (ASTM):

A36/A36M-//2019// ............... Standard Specification for Carbon Structural Steel

A575-/1996(2020)// ............... Standard Specification for Steel Bars, Carbon, Merchant

Quality, M-Grades

F. Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. (MSS):

SP-58-//2018// ....................... Pipe Hangers and Supports-Materials, Design, Manufacture, Selection, Application, and Installation

SP-127-//2014a//.................... Bracing for Piping Systems: Seismic–Wind–Dynamic Design, Selection, and Application

G. National Fire Protection Association (NFPA):

70-//2020// ............................. National Electrical Code (NEC)

101-//2021// ........................... Life Safety Code

1.4 SUBMITTALS

A. Submittals shall be submitted in accordance with the Statement of Work.

B. Information and material submitted under this section shall be marked “SUBMITTED

UNDER SECTION 23 05 11, COMMON WORK RESULTS FOR HVAC”, with applicable paragraph identification.

C. Contractor shall make all necessary field measurements and investigations to assure that the equipment and assemblies will meet contract requirements, and all equipment that requires regular maintenance, calibration, etc are accessable from the floor or permanent work platform. It is the Contractor’s responsibility to ensure all submittals meet the NPS specifications and requirements and it is assumed by the NPS that all submittals do meet the

NPS specifications unless the Contractor has requested a variance in writing and approved by

COR prior to the submittal. If at any time during the project, it is found that any item does not meet the NPS specifications and there was no variance approval, the Contractor shall correct at no additional cost or time to the Government even if a submittal was approved.

D. If equipment is submitted, which differs in arrangement from that shown, provide documentation proving equivalent performance, design standards and drawings that show the rearrangement of all associated systems. Additionally, any impact on ancillary equipment or services such as piping and electrical shall be the Contractor’s responsibility to design, supply, and install at no additional cost or time to the Government. NPS approval will be given only if all features of the equipment and associated systems, including accessibility, are equivalent to that required by the contract.

E. Prior to submitting shop drawings for approval, Contractor shall certify in writing that manufacturers of all major items of equipment have each reviewed contract documents and have jointly coordinated and properly integrated their equipment and controls to provide a complete and efficient installation.

F. Submittals and shop drawings for interdependent items, containing applicable descriptive information, shall be furnished together. Coordinate and properly integrate materials and equipment to provide a completely compatible and efficient installation.

G. Manufacturer's Literature and Data Including: Full item description and optional features and accessories. Include dimensions, weights, materials, applications, standard compliance, model numbers, size, and capacity. Submit under the pertinent section rather than under this section.

1. Equipment and materials identification.

2. Fire-stopping materials.

H. Rigging Plan: Provide documentation of the capacity and weight of the rigging and equipment intended to be used. The plan shall include the path of travel of the load, the staging area and intended access, and qualifications of the operator and signal person.

I. HVAC Maintenance Data and Operating Instructions:

1. Maintenance and operating manuals in accordance with GENERAL REQUIREMENTS.

2. Complete operating and maintenance manuals including wiring diagrams, technical data sheets, information for ordering replacement parts, and troubleshooting guide:

a. Include a complete list indicating all components of the systems.

b. Include complete diagrams of the internal wiring for each item of equipment.

c. Diagrams shall have their terminals identified to facilitate installation, operation, and maintenance.

3. Provide a list of recommended replacement parts for keeping stock supply, including sources of supply for equipment.

1.5 QUALITY ASSURANCE

A. Mechanical, electrical and associated systems shall be safe, reliable, efficient, durable, easily and safely operable and maintainable, easily and safely accessible, and in compliance with applicable codes as specified. The systems shall be comprised of high quality institutional-class and industrial-class products of manufacturers that are experienced specialists in the required product lines. All construction firms and personnel shall be experienced and qualified specialists in industrial and institutional HVAC.

B. Products Criteria:

1. Standard Products: Material and equipment shall be the standard products of a manufacturer regularly engaged in the manufacture of the products for at least 3 years (or longer as specified elsewhere). The design, model and size of each item shall have been in satisfactory and efficient operation on at least three installations for approximately three years. However, digital electronics devices, software and systems such as controls, instruments, computer workstations, shall be the current generation of technology and basic design that has a proven satisfactory service record of at least three years. See other specification sections for any exceptions and/or additional requirements.

2. Refer to all other specifications for quality assurance requirements for systems and equipment specified therein.

3. All items furnished shall be free from defects that would adversely affect the performance, maintainability and appearance of individual components and overall assembly.

4. The products and execution of work specified in Division 23 sections shall conform to the reference codes and standards as required by the specifications. Local codes and amendments shall be enforced, along with requirements of local utility companies. The most stringent requirements of these specifications, local codes, or utility company requirements shall always apply. Any conflicts shall be brought to the attention of the

COR.

5. Multiple Units: When two or more units of materials or equipment of the same type or class are required, these units shall be of the same manufacturer and model number, or if different models are required, they shall be of the same manufacturer and identical to the greatest extent possible (i.e., same model series).

6. Assembled Units: Performance and warranty of all components that make up an assembled unit shall be the responsibility of the manufacturer of the completed assembly.

7. Nameplates: Nameplate bearing manufacturer's name or identifiable trademark shall be securely affixed in a conspicuous place on equipment, or name or trademark cast integrally with equipment, stamped or otherwise permanently marked on each item of equipment.

8. Use of asbestos products or equipment or materials containing asbestos is prohibited.

C. HVAC Equipment Service Providers: Service providers shall be authorized and trained by the manufacturers of the equipment supplied. These providers shall be capable of responding onsite and provide acceptable service to restore equipment operations within 24 hours of receipt of notification by phone, e-mail or fax in event of an emergency, such as the shutdown of equipment.

D. Manufacturer's Recommendations: Where installation procedures or any part thereof are required to be in accordance with the recommendations of the manufacturer of the material being installed, printed copies of these recommendations shall be furnished to the COR with submittals. Installation of the item will not be allowed to proceed until the recommendations are received. Failure to furnish these recommendations can be cause for rejection of the material and removal by the Contractor and no additional cost or time to the Government.

E. Execution (Installation, Construction) Quality:

1. Apply and install all items in accordance with manufacturer's written instructions. Refer conflicts between the manufacturer's instructions and the contract documents to the COR for resolution. Provide written hard copies and computer files on CD or DVD of manufacturer’s installation instructions to the COR with submittals prior to commencing installation of any item. Installation of the item will not be allowed to proceed until the recommendations are received and approved by the NPS. Failure to furnish these recommendations is a cause for rejection of the material.

2. All items that require access, such as for operating, cleaning, servicing, maintenance, and calibration, shall be easily and safely accessible. Failure of the Contractor to resolve or point out any issues will result in the Contractor correcting at no additional cost or time to the Government.

3. Workmanship/craftsmanship will be of the highest quality and standards. The NPS reserves the right to reject any work based on poor quality of workmanship. This work shall be removed and done again at no additional cost or time to the Government.

F. Upon request by the Government, provide lists of previous installations for selected items of equipment. Include contact with people who will serve as references, with current telephone numbers and e-mail addresses.

G. Guaranty: Warranty of Construction, FAR Clause 52.246-21.

1.6 DELIVERY, STORAGE AND HANDLING

A. Protection of Equipment:

1. Equipment and material placed on the job site shall remain in the custody of the

Contractor until phased acceptance, whether the Government has reimbursed the

Contractor for the equipment and material. The Contractor is solely responsible for the protection of such equipment and material against any damage or theft.

2. Large equipment such as air handling units shipped on open trailer trucks shall be covered with shrink on plastics or waterproof tarpaulins that provide protection from exposure to rain, road salts and other transit hazards. Protection shall be kept in place until equipment is moved into a building or installed as designed.

3. Repair damaged equipment in first class, new operating condition and appearance; or replace same as determined and directed by the COR. Such repairs or replacement shall be at no additional cost or time to the Government.

4. Protect interiors of new equipment and piping systems against entry of foreign matter.

Clean both inside and outside before placing equipment in operation.

B. Cleanliness of Piping and Equipment Systems:

1. Exercise care in storage and handling of equipment and piping material to be incorporated in the work. Remove debris arising from cutting, threading and welding of piping.

2. Piping systems shall be flushed, blown or pigged as necessary to deliver clean systems.

3. The contractor shall be fully responsible for all costs, damage, and delays arising from failure to provide clean systems.

1.7 JOB CONDITIONS – WORK IN EXISTING BUILDING

A. Building Operation: Government employees will be continuously operating and managing all facilities.

B. Maintenance of Service: Schedule all work to permit continuous service as required by the

NPS.

C. Building Working Environment: Always maintain the architectural and structural integrity of the building and the working environment. Provide daily clean-up of construction and demolition debris.

D. Acceptance of Work for Government Operation: As new equipment/systems are made available for operation and these items are deemed beneficial to the Government, inspections will be made, and tests will be performed. Based on the inspections, a list of contract deficiencies will be issued to the Contractor. After correction of deficiencies as necessary for beneficial use, the Contracting Officer will process necessary acceptance, and the equipment will then be under the control and operation of Government personnel.

PART 2 - PRODUCTS

2.1 FACTORY ASSEMBLED PRODUCTS

A. Provide maximum standardization of components to reduce spare part requirements.

B. Performance and warranty of all components that make up an assembled unit shall be the responsibility of the manufacturer of the completed assembly.

1. All components of an assembled unit need not be products of same manufacturer.

2. Constituent parts that are alike shall be products of a single manufacturer.

3. Components shall be compatible with each other and with the total assembly for intended service.

4. The contractor shall guarantee the performance of assemblies of components and shall repair or replace elements of the assemblies as required to deliver specified performance of the complete assembly.

C. Equipment and components of equipment shall bear manufacturer's name and trademark, model number, serial number and performance data on a nameplate securely affixed in a conspicuous place, or cast integral with, stamped or otherwise permanently marked upon the components of the equipment.

D. Major items of equipment, which serve the same function, shall be the same make and model. Exceptions must be approved by the NPS but may be permitted if performance requirements cannot be met.

2.2 EQUIPMENT AND MATERIALS IDENTIFICATION

A. Use symbols, nomenclature and equipment numbers specified, shown in the contract documents, and shown in the maintenance manuals.

B. Exterior (Outdoor) Equipment: Brass nameplates, with engraved black filled letters, not less than 5 mm (3/16 inch) high riveted or bolted to the equipment.

2.3 ASBESTOS

A. Materials containing asbestos are prohibited.

PART 3 - EXECUTION

3.1 GENERAL

A. If an installation is unsatisfactory to the COR, the Contractor shall correct the installation at no additional cost or time to the Government.

3.2 ARRANGEMENT AND INSTALLATION OF EQUIPMENT AND PIPING

A. Protection and Cleaning:

1. Equipment and materials should be carefully handled, properly stored, and adequately protected to prevent damage before and during installation, in accordance with the manufacturer's recommendations and as approved by the COR. Damaged or defective items in the opinion of the COR, shall be replaced.

2. Protect all finished parts of equipment from rust prior to operation by means of protective grease coating and wrapping. Tightly cover and protect fixtures and equipment against dirt, water chemical, or mechanical injury. At completion of all work thoroughly clean fixtures, exposed materials and equipment.

3.3 STARTUP, TEMPORARY OPERATION AND TESTING

A. Perform tests as recommended by product manufacturers and listed standards and under actual or simulated operating conditions and prove full compliance with design and specified requirements. Tests of the various items of equipment shall be performed simultaneously with the system of which each item is an integral part.

B. When any defects are detected, correct defects and repeat test at no additional cost or time to the Government.

3.4 OPERATING AND PERFORMANCE TESTS

A. Prior to the final inspection, perform required tests and submit the test reports and records to the COR.

B. Should evidence of malfunction in any tested system, or piece of equipment or component part thereof occur during or because of tests, make proper corrections, repairs or replacements, and repeat tests at no additional cost or time to the Government.

C. When completion of certain work or system occurs at a time when final control settings and adjustments cannot be properly made to make performance tests, then conduct such performance tests and finalize control settings for heating systems and for cooling systems respectively during first actual seasonal use of respective systems following completion of work. Rescheduling these tests shall be requested in writing to COR for approval.

No adjustments shall be made during the acceptance inspection. All adjustments shall have been made by this point. - - - E N D - - -

5. BIDDERS TO VISIT SITE: All bidders are expected to visit the site of the work and to inform themselves as to all existing conditions. Failure to do so in no way relieves the successful bidder from the necessity of furnishing all equipment and materials and performing all work required for the completion of the contract in conformity with all specifications.

No allowance will be made for the failure of the bidder correctly to estimate the difficulties attending the execution of the work.

6. RESPONSIBILITY FOR EMPLOYEES: The contractor shall be responsible for the safety of his employees and for any injury or damage done to or by them from any source or cause.

He shall save and hold the United States free from all claims for damages to all persons and (or) property arising from the execution of the work covered by these specifications.

The contractor shall make good at his own expense all damage to any property of the United States, arising from his operations under these specifications, or from the fault or neglect of any of his employees.

7. DELIVERABLE: The delivery of this project is the satisfactory completion of all required work under this contract. All equipment, tools, surplus materials, and rubbish shall be removed upon completion of work.

8. CONTRACT PERFORMANCE PERIOD: 60 calendar days from Notice to Proceed.

9. WORKING HOUR RESTRICTIONS: Contractor shall conduct his operations in conformance with rules and regulations promulgated by the Secretary of the Interior for the National Park Service, and applicable park rules and regulations prescribed by Park Superintendent. All work and deliveries shall be limited to the weekday hours from 7:00 am to 4:00 pm Monday through Friday, unless otherwise approved by the Contracting Officer or COR. No work shall occur during National Park Service holidays or weekends without prior approval.

No signs or advertisements (except those specified herein) shall be displayed on the construction site or within the park unless approved by the Contracting Officer.

10. PAYMENT: Payments will be processed upon completion of project and need to be submitted to and processed via the electronic invoicing system. Information can be found at www.ipp.gov.

11. Support Pictures or Documentation:

Maintenance Shop (Image Below) http://www.ipp.gov/