A04-SOW_Replace_Beale_Boilers_4_7_26.docx

UNITED STATES DEPARTMENT OF THE INTERIOR

NATIONAL PARK SERVICE

Adams National Historical Park

STATEMENT OF WORK

Beale House Boiler Replacement Location: Beale House, 181 Adams Street, Quincy, MA 02169 Prepared By: Kevin W. Kelly, Facility Manager Date: April 7, 2026

1. Purpose This Statement of Work (SOW) defines the requirements for removal and replacement of the existing hot water boilers at the Beale House, Adams National Historical Park (ADAM). Work includes all labor, materials, equipment, transportation, and supervision necessary for a complete and functional installation.

2. Project Overview The contractor shall remove the existing gas‑fired boiler systems and install new, high‑efficiency, code‑compliant units. Work shall be performed in a manner that protects historic fabric and ensures compatibility with existing mechanical, electrical, and control systems.

3. Background The existing boilers have exceeded their service life and no longer provide reliable or efficient operation. Replacement is required to maintain safe heating performance and environmental stability within the historic structure.

4. Scope of Work

4.1 Removal and Disposal

The contractor shall:

· Disconnect, drain, and remove existing boilers, venting, and related components.

· Remove miscellaneous and obsolete associated items.

· Protect all historic materials, utilities, and adjacent finishes.

· Dispose of all removed materials in accordance with applicable regulations.

4.2 Installation of New Boiler System

The contractor shall:

· Furnish and install three high‑efficiency natural gas hot water boilers meeting or exceeding original performance specifications.

· Reconnect natural gas supply, hot water piping, electrical circuits, venting, and system controls.

· Install required accessories including insulation, isolation valves, bypass piping, condensate pumps, and exhaust vents.

· Provide all supports, pads, and hardware necessary for complete installation.

4.3 Controls, Testing, and Commissioning

The contractor shall:

· Integrate boilers with existing control systems or provide compatible replacements.

· Perform testing, adjusting, and balancing (TAB).

· Demonstrate proper operation including safety shutoffs, efficiency checks, and full commissioning.

· Submit a final commissioning report.

4.4 Final Cleanup

The contractor shall:

· Remove all construction debris, waste materials, and packaging.

· Leave mechanical areas in broom‑clean condition.

· Restore any disturbed areas to clean and orderly appearance.

· Provide cleanup acceptable to NPS prior to final acceptance.

5. Deliverables The contractor shall provide:

· Documentation of equipment removal and disposal.

· Product data and installation submittals for all new equipment.

· Commissioning and TAB report.

· Updated mechanical system diagrams.

· Complete O&M manuals for installed systems.

6. Site Conditions and Restrictions Work is within an occupied historic structure. The contractor shall:

· Protect all historic features at all times.

· Follow NPS protocols for safety, security, and historic preservation.

· Maintain a clean and controlled work environment.

7. Work Hours Standard NPS work hours:

Monday–Friday, 7:00 a.m. to 3:00 p.m.

Alternate hours require prior approval.

8. Safety and Compliance The contractor shall comply with:

· OSHA regulations

· NFPA codes

· Local mechanical, plumbing, and electrical codes

· All federal, state, and local requirements applicable to this work

9. Period of Performance All work shall be completed within the project schedule defined by NPS at contract award.

10. Contractor Qualifications Contractor shall demonstrate experience completing boiler replacement projects of comparable scope, including work performed in historic or occupied facilities.

11. Acceptance Criteria NPS will accept the work when:

· All installation meets specifications and applicable codes.

· Boilers successfully pass commissioning, TAB, and safety testing.

· Final cleanup is completed to NPS satisfaction.

· All deliverables are submitted and approved.

· A minimum one‑year warranty covering all labor, materials, and installed equipment is provided by the contractor.

12. Existing Equipment Summary Existing Boilers:

· Three Weil‑McLain Natural Gas Boilers

· Model: GV‑6 Series 3

· Installed: 1998 Existing Specifications:

· Input: 175,000 BTU/hr

· DOE Heating Capacity: 153 MBH

· Gas Pressure: Max 13.0 in. w.c.; Min 4.0 in. w.c.

· Electrical: <12 amps, 120 VAC, 60 Hz Replacement Includes:

· High‑efficiency boilers with automated controls

· Replacement of auto‑feed water valve

· New manual bypass piping and isolation valves

· Replacement of exhaust venting and condensate pumps image1.jpeg image2.jpeg image3.jpeg