A04 SOW_ Replace Boilers in Historic Structures.pdf

National Park Service U.S. Department of the Interior

Northeast Region

Replace Boilers in Historic Structures

PMIS # 255489

PROJECT MANUAL

Minute Man National Historical Park

Major John Buttrick House:

231 Liberty Street, Concord, MA 01742

Elisha Jones House:

242 Monument Street, Concord, MA 01742

May, 2020

Minute Man National Historical Park Replace Boilers in Historic Structures

FRONT COVER:

Mailing Address:

Minute Man National Historical Park 174 Liberty Street

Concord, Massachusetts 01742 please visit:

www.NPS.gov/MIMA

May 2020 PROJECT MANUAL COVER 000101-2 http://www.nps.gov/SAMA

Minute Man National Historical Park Replace Boilers in Historic Structures

Replace Boilers in Historic Structures

PMIS # 255489

TABLE OF CONTENTS

SECTION 011100 SUMMARY OF WORK

SECTION 013000 ADMINISTRATIVE REQUIREMENTS

SECTION 230500 COMMON WORK RESULTS FOR HVAC

SECTION 235223 CAST-IRON BOILERS

SECTION 260010 GENERAL ELECTRICAL PROVISIONS

Attachments: Photos of Existing Boilers - Boiler Specifications Sheets

May 2020 TABLE OF CONTENTS Page 1 of 1

May 2020 SUMMARY OF WORK 011100 - Page 2 of 5

SECTION 011100

SUMMARY OF WORK

PART 1 GENERAL

1 .1 DESCRIPTION

A. Work of this Contract consists of the replacement of 3 (three) boilers.

Replacement of boilers will include all related equipment, appurtenances, controls, and devices.

B. The new system shall consist of 3 (three) individual boilers. Boilers would be installed in place of existing units. The boilers are located in two separate locations. (Two) will be installed in the Major John Buttrick House (231 Liberty Street, Concord, MA 01742). (One) will be installed in the Elisha Jones House (242 Monument Street, Concord, MA 01742). The Major John Buttrick boilers are oil boilers, while the Elisha Jones unit is a gas boiler.

C. Contractor is required to provide all labor, supervision, supplies, equipment, tools, materials, all supplemental or miscellaneous items, appurtenances and devices incidental to or necessary for the Project.

D. Work shall be carried out as specified herein and as required by field conditions and applicable regulatory requirements. In general, the Work consists of, but may not be limited to, the following:

Steam Oil Boiler Replacement (Boiler #1: Major John Buttrick House residence)

• Removal and proper disposal of existing boiler.

• Installation of new steam boiler (see attached specification sheet).

• Installation of new pressure control, probe 1.w.c.o., and automatic water feeder.

• Installation of new smoke pipe and draft regulator.

• Installation of all necessary controls and wiring.

• Installation of all necessary boiler and domestic piping.

• Connect new boiler to existing supply and return piping.

• Installation of an equalizing line and a Hartford loop.

• Installation of an oil burner (see attached specification sheet).

May 2020 SUMMARY OF WORK 011100 - Page 3 of 5

Steam Oil Boiler Replacement (Boiler #2: Major John Buttrick House Museum)

• Installation of new steam boiler (see attached specification sheet).

• Installation of new pressure control, probe 1.w.c.o., and automatic water feeder.

• Installation of new smoke pipe and draft regulator.

• Installation of all necessary controls and wiring.

• Installation of all necessary boiler and domestic piping.

• Connect new boiler to existing supply and return piping.

• Installation of an equalizing line and a Hartford loop.

• Installation of an oil burner (see attached specification sheet).

Gas Boiler Replacement (Boiler #3: Elisha Jones House)

• Installation of new modulating gas boiler (AFUE 95%) (see attached specification sheet).

• Installation of new pressure reducing valve and backflow preventer.

• Installation of new (1) low loss circulator with shut offs and flanges.

• Installation of new expansion tank, sperovent low loss header.

• Installation of new P.V.C. supply, exhaust and termination.

• Installation of all necessary controls and wiring.

• Installation of all necessary boiler and domestic piping.

• Installation of a condensate pump and neutralizer

May 2020 SUMMARY OF WORK 011100 - Page 4 of 5

. Provide a complete cleaning, flushing, and testing of hot water heating system.

E. All prospective Offerors, and their Subs, as appropriate are strongly encouraged to visit and examine the existing conditions of the Project and familiarize themselves with existing control system prior to submission of bid in order to better understand the Work, and aid in forming any questions prior to the submission of bid.

F. Contractor and all Subcontractors shall verify all new and existing dimensions prior to the commencement of Work and/or ordering of products and materials that may affect the Work of this Contract. Any and all discrepancies shall be forwarded to the Contracting Officer in writing for clarification prior to the commencement of Work. Any work performed prior to said clarification, particularly and including that which may require correction shall be corrected by the Contractor with no additional costs to the Contract and Government and no time extension shall be made to the Contract Schedule.

G. Lack of knowledge of the existing conditions will not be allowed as a basis for extra compensation.

H. The Contractor shall note the historical significance of the site upon which the work will be performed. Because of the historic nature of this site, certain aspects of the work of this Contract will not be carried out with methods and/or materials commonplace in the modern construction industry. It shall be incumbent upon the Contractor to furnish mechanics who can execute first-class workmanship, and who will take any necessary precautions to protect the elements of this historic site not scheduled to receive work.

1 .2 DEMOLITION

A. Before beginning any demolition or deconstruction work, survey and examine the Site to determine the extent of the work. Take necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain the property of the Government.

B. Disposal of removed equipment and materials shall be the Contractor's responsibility.

C. Abandoning of any old piping, wiring or miscellaneous devices not being used for modified new

System is not permitted. Where removals leave holes and damaged surfaces exposed in the existing work, patch and repair these holes and damaged surfaces to match adjacent finished surfaces, using on-site materials when available. Where new Work is to be applied to existing surfaces, perform removals and patching in a manner to produce surfaces suitable for receiving new work. Finished surfaces of patched area shall be flush with the adjacent existing surface and shall match the existing adjacent surface as closely as possible as to texture and finish as determined by Government.

1 .3 ACCIDENT PREVENTION

A. All Work on the Site shall be in compliance with the applicable OSHA regulations.

B. The Contractor shall submit Site safety plans and must attain the approval from the Contracting

Officer before a Notice to Proceed may be issued. A format for a Safety Plan is available upon request.

May 2020 SUMMARY OF WORK 011100 - Page 3 of 5

C. The Contractor shall establish and maintain an Accident Prevention Program.

1. Ensure that employees are physically qualified to perform their assigned duties in a safe manner.

2. Do not allow employees to work whose ability or alertness is impaired due to conditions that may expose them or others to injury.

3 The Program shall include:

a. Name of person in charge of the program.

b. First aid procedures.

c. Outline hazards associated with work.

d. Clean-up.

e. Training initial and continuing.

D. Accident Reporting

1. Reportable Accidents is defined as death, occupational disease, traumatic injury to employees or public, property damage by accident in excess of $100.

2. For Reportable Accidents, call 911 and then immediately notify the Contracting Officer.

3. All other Accidents the Contractor shall notify the Contracting Officer as soon as possible.

4. The Contractor shall assist the Contracting Officer and other officials as required in the investigation of accidents.

1 .4 WORK COMPLETION

A. Complete all Work within 30 calendar days after receipt of notice to proceed. The time stated for completion shall include final clean-up of the premises.

1 .5 LOCATION

A. Major John Buttrick House (231 Liberty Street, Concord, MA 01742)

B. Elisha Jones House (242 Monument Street, Concord, MA 01742)

1 .6 CONTRACTOR'S USE OF PREMISES

A. Building will be occupied during construction.

B. Coordinate construction efforts with the COR such that there is minimal impact to the work of the National Park Service personnel and the resident.

C. The Contractor shall take all necessary measures to protect public and employees from hazards associated with the work of this contract.

D. Contractor shall at all times conduct his operations to ensure the least inconvenience to the resident.

May 2020 SUMMARY OF WORK 011100 - Page 4 of 5

E. Storage of materials: Confine storage of materials to an area as defined by the COR.

F. Preservation of Natural Features: Confine all operations to work limits of the project. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

I. Existing Utilities:

1. Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government.

J. Hauling Restrictions: Comply with all legal load restrictions in the hauling of materials. Load restrictions on park roads are identical to the state load restrictions with such additional regulations as may be imposed by the Park Superintendent. Information regarding rules and regulations for vehicular traffic on park roads may be obtained from the Office of the Park Superintendent. A special permit will not relieve Contractor of liability for damage, which may result from moving of equipment.

K. Hours of Operation:

1. Contractor's hours of operation at the Site shall be normal working hours of the Park staff

7:00 a.m. to 3:30 p.m., Monday thru Friday, unless otherwise allowed by Contracting Officer.

2. All Work outside the above time period shall only occur with the approval of Contracting

Officer. No Work will occur at the site on days of the week that coincide with National Holidays or when the Park is closed to the public due to weather emergencies.

PART 2 PRODUCTS NOT USED.

PART 3 EXECUTION NOT USED.

END OF SECTION

May 2020 ADMINISTRATIVE REQUIREMENTS 013000 - Page 1 of 3

SECTION 013000

ADMINISTRATIVE REQUIREMENTS

A. The work of this section consists of submittal requirements before and during construction.

1 .2 SUBMITTAL AND APPROVAL PROCEDURES

A. As specified in the individual sections, forward submittals to Contracting Officer at least 10 days before need for approval. Submit electronic copies of each shop drawing, manufacturer's catalog sheets (cut sheets), and all other submittals requested. Submittals shall be accompanied by a Transmittal Sheet, form CM-16, included in Document 000600 - Project Forms.

1. Shop Drawings: Include the following information with each copy of shop drawings:

a. Date.

b. Date of revisions (when applicable).

c. Details of fabrication, assembly and erection including connections and engagement to contiguous work.

d. Materials used.

e. All required dimensions.

f. The term "by others" shall not be used. All work to be performed by others shall be identified by Contractor or subcontractor name, discipline, or trade.

2. Manufacturers' Catalog Sheets: Submit only pertinent pages; mark each copy of standard printed data to identify specific products proposed for use.

3. Manufacturer's Installation Instructions: When contract documents require compliance with manufacturer's printed instructions, provide one complete set of instructions for Contracting Officer and keep another complete set of instructions at the project site until substantial completion.

B. Contracting Officer reserves the right to require submittals in addition to those called for in individual sections.

C. Coordinate all submittals and review them for legibility, accuracy, completeness, and compliance with contract requirements. Forward submittals that are related to or affect one another as a package to facilitate coordinated review. Each transmittal shall contain only data specific to that individual submittal.

D. Submittal Identification:

May 2020 ADMINISTRATIVE REQUIREMENTS 013000 - Page 2 of 3

1. Identification shall include the park name-package number, project title, contract number, and transmittal number.

2. All sets of shop drawings, manufacturer's catalog sheets, samples, and other documents submitted to the Contracting Officer must have the identification information shown on the submittal.

3. Identification information shall be applied to the bottom right margin on each page.

Identification information on samples shall be applied to the most readily visible area on the sample or on tags attached to sample.

E. Submittal Numbering:

1. Number each submittal consecutively.

2. For re-submittals use the original submittal number, plus a letter suffix beginning with A.

3. Additional re-submittals of the same item shall contain the original number with the next consecutive letter.

F. Contracting Officer's Review:

1. Submittals will be returned disapproved without technical review if identification information is missing, not filled in, or if placed on the back of the submittal; an incorrect number or format of submittals is provided; the transmittal form is incorrectly filled out;

submittals are not coordinated; or submittals do not show evidence of Contractor's approval.

2. Any work done or orders for materials or services placed before approval shall be at the

Contractor's own risk and cost.

3. After reviewing submittals, the Contracting Officer will return applicable (marked up) submittal sheets to the Contractor. Shop drawing review notations will be returned on the reproducible original shop drawing. All other submitted items will be retained. The Contractor is responsible for producing additional copies for his/her own use.

4. The returned submittal will be marked in one of three ways as defined below:

a. APPROVED: Acceptable with no corrections.

b. APPROVED WITH NOTATIONS: Minor corrections or clarifications required.

All comments are clear and no further review is required. The Contractor shall address all review comments when proceeding with the work.

c. DISAPPROVED - RESUBMIT: Rejected as not in accordance with the contract or as requiring major corrections or clarifications. The Contracting Officer will identify the reasons for disapproval. The Contractor shall revise and resubmit with changes clearly identified.

May 2020 CAST-IRON BOILERS 235223 - 3

PART 3 EXECUTION NOT USED.

SECTION 230500

COMMON WORK RESULTS FOR HVAC

A. This section contains items of common or administrative nature that pertain to all mechanical work.

1 .2 QUALITY ASSURANCE

A. All pressure vessels, including safety devices and appurtenances, shall comply with standards of and bear stamp of ASME.

1 .3 COORDINATION

A. Interruption of Services: Coordinate shutdown of building mechanical and/or electrical systems with Contracting Officer.

B. Schedule of Work: Coordinate work with other trades. In scheduling, anticipate such items as installing equipment through available openings in structure.

C. Make minor changes in piping, and equipment locations to suit actual conditions.

1 .4 PROTECTION

A. Completely cover motors and other machinery to protect from dirt and water. Cap all openings in pipe and ductwork to protect against entry of foreign matter.

PART 3 EXECUTION

3 .1 CUTTING AND PATCHING

A. Perform or pay for all cutting, fitting, repairing, patching and finishing of work of other sections where it is necessary to disturb such work to permit installation of mechanical work.

May 2020 CAST-IRON BOILERS 235223 - 4

B. Before cutting of structural elements, obtain approval of Contracting Officer.

1. Use only approved methods.

2. Cut all holes neatly and as small as possible to admit work.

3. Do not weaken walls or floors; locate holes in concrete to miss structural sections.

C. Locate openings and sleeves to permit neat installation of piping, ductwork and equipment.

D. Do not remove or damage fireproofing materials.

1. Install hangers, inserts, supports and anchors prior to installation of fireproofing.

2. Repair or replace fireproofing removed or damaged, at no extra cost.

3 .2 PENETRATIONS

A. Where mechanical items penetrate fire and/or smoke rated walls, ceilings and floors, seal annular spaces with approved fire rated material to maintain fire and smoke ratings.

3 .3 INSTALLATION OF EQUIPMENT

A. Install all equipment in accordance with manufacturer's recommendations.

B. Provide all necessary anchoring devices and supports.

C. Install equipment to permit easy access for normal maintenance.

1. Maintain easy access to filters, motors, drives, etc.

2. Relocate items which interfere with access.

3. Connect equipment for ease of disconnecting.Provide isolation valves on both sides of equipment wherever new or existing equipment is installedto facilitate servicing, maintenance, and repair or replacement of equipment components.

D. Remove, relocate and re-install all existing mechanical equipment to be re-used.

E. Provide rough-in and final connections to all equipment requiring mechanical services.

F. Install all fittings, valves and other items furnished as integral part of equipment, but shipped loose.

3 .4 WORK IN EXISTING BUILDING

A. Where relocation of existing equipment and piping systems is necessary in areas providing uninterruptible services, schedule work for minimal down time during unoccupied periods.

B. Assign an adequate crew to accomplish the job in the least possible time.

C. Fabricate and install interconnecting portions of these systems prior to shut-down for final

May 2020 CAST-IRON BOILERS 235223 - 5 connections.

D. Locate existing piping and make connections as required.

1. Do not cut into existing services without first verifying with Government that service has been correctly identified.

2. Perform work that interrupts any service (this includes cutting into existing lines for new connection) at time to cause the least interference to the normal operation of the building.

3. Inform Contracting Officer’s Representative in advance (minimum 7 days) of any shut-off that will occur and give estimate of duration.

4. Begin work only after Contracting Officers Representative is fully informed and has agreed to schedule of shut-offs.

3 .5 FIELD QUALITY CONTROL

A. Perform indicated tests to demonstrate workmanship, operation and performance.

1. Conduct tests in presence of Contracting Officers Representative and, if required, inspectors of agencies having jurisdiction.

2. Arrange date of tests in advance with Contracting Officers Representative, manufacturer and installer. Give all inspectors minimum of 48-hour notice.

3. Furnish or arrange for use of electrical energy, water or gas required for tests.

4. Furnish all lubricating materials required for test.

B. Repair or replace equipment and systems found inoperative or defective and re-test.

C. Test equipment and systems as indicated for each item, unless otherwise recommended by manufacturer.

D. Do not install distribution systems above electrical panels or any other electrical equipment.

E. Install all equipment with adequate service and maintenance clearances.

3 .6 ADJUST AND CLEAN

A. Inspect all equipment and put in good working order.

B. Clean all exposed and concealed Items.

3 .7 PUTTING SYSTEMS IN OPERATION -START-UP

A. Prior to final acceptance, at time agreed to by Contracting Officer’s Representative, put all systems into satisfactory operation.

1. At first heating or cooling season following final acceptance, start up systems not started due to lack of seasonal design load.

May 2020 CAST-IRON BOILERS 235223 - 6

B. Operate all systems in good working order for period of 5 working days.

SECTION 235223

CAST-IRON BOILERS

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes 3 (three) packaged, factory-fabricated and -assembled, boilers, trim, and accessories. Steam Oil Boiler Replacement (Boiler # 1: Major John Buttrick House Residence), Steam Oil Boiler Replacement (Boiler # 2: Major John Buttrick House Museum), Gas Boiler Replacement (Boiler # 3: Elisha Jones House)

1.2 SUBMITTALS

A. As specified in Section 013000.

B. Submit manufacturer's data including physical dimensions, rated capacities, weights and accesso-ries for boilers.

C. Submit wiring diagrams detailing wiring for power and control systems differentiating between factory and field installed wiring.

D. Submit operation and maintenance data including accessories and as-built wiring diagrams for review and approval.

1.3 QUALITY ASSURANCE

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

B. ASME Compliance: Fabricate and label boilers to comply with ASME Boiler and Pressure

Vessel Code.

C. ASHRAE/IESNA 90.1 Compliance: Boilers shall have minimum efficiency according to "Gas and Oil Fired Boilers - Minimum Efficiency Requirements."

D. DOE Compliance: Minimum efficiency shall comply with 10 CFR 430, Subpart B, Appendix N, "Uniform Test Method for Measuring the Energy Consumption of Furnaces and Boilers."

May 2020 CAST-IRON BOILERS 235223 - 7

E. I=B=R Compliance: Boilers shall be tested and rated according to HI's "Rating Procedure for

Heating Boilers" and "Testing Standard for Commercial Boilers," with I=B=R emblem on a nameplate affixed to boiler.

F. UL Compliance: Test boilers for compliance with UL 795, "Commercial-Industrial Gas

Heating Equipment." Boilers shall be listed and labeled by a testing agency acceptable to authorities having jurisdiction.

1.4 WARRANTY

A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace controls and heat exchangers of boilers that fail in materials or workmanship within specified warranty period.

1. Warranty Period for Controls: 2 (Two) years from date of Substantial Completion.

2. Warranty Period for Heat Exchangers: 10 (Ten) years from date of Substantial

Completion.

PART 2 - PRODUCTS

2.1 STANDARD PRODUCTS

A. Provide materials and equipment which are the standard products of a manufacturer regularly engaged in the manufacture of the products and that essentially duplicate items that have been in satisfactory use for at least 2 years prior to bid opening. Equipment shall be supported by a service organization that is, in opinion of the Contracting Officer, reasonably convenient to the site.

2.2 CAST IRON BOILERS

A. Basis-of-Design Product: See Spec sheets attached, or a comparable product.

2.3 SOURCE QUALITY CONTROL

A. Test and inspect factory-assembled boilers, before shipping, according to ASME Boiler and Pressure Vessel Code.

B. Burner and Hydrostatic Test: Factory adjust burner to eliminate excess oxygen, carbon dioxide, oxides of nitrogen emissions, and carbon monoxide in flue gas and to achieve combustion efficiency; perform hydrostatic test.

May 2020 CAST-IRON BOILERS 235223 - 8

PART 3 - EXECUTION

3.1 BOILER INSTALLATION

A. Install boilers level and plumb, according to manufacturer’s recommendations. Boilers shall be installed in place of existing boilers.

B. Install gas-fired boilers according to NFPA 54.

C. Assemble and install boiler trim.

D. Install electrical devices furnished with boiler but not specified to be factory mounted.

E. Install control wiring to field-mounted electrical devices.

3.2 CONNECTIONS

A. Install piping adjacent to boiler to allow service and maintenance.

B. Connect gas piping to boiler gas-train inlet with union. Piping shall be at least full size of gas train connection. Provide a reducer if required.

C. Connect air intake and exhaust piping to each boiler, size as recommended by manufacturer. Pitch toward boiler minimum of 2 percent. Combustion air piping can be individually piped or manifolded

D. Connect hot-water piping to supply- and return-boiler tappings with shutoff valve and union or flange at each connection.

E. Install piping from safety relief valves to nearest floor drain.

F. Install piping from equipment drain connection to nearest floor drain. Piping shall be at least full size of connection. Provide an isolation valve if required.

G. Other Components: Install all other waterside components such as valves, mixing valves, thermometers and supply water temperatures sensors; install sensors or probes in a location that will sense supply water temperature from all modules. Follow manufacturer’s installation instructions.

3.3 CONTROLS

A. Furnish and install all necessary controls for complete and operational heating system.

B. Wire boiler burner so it cannot fire unless heating water-circulating pump is running.

C. Wire boiler burner through flow switch in heating water loop to prevent boiler operation until positive flow is proven.

D. Low water cutoff switch shall shut down boiler operation when water level drops below limit.

E. Automatic high limit shall shut down boiler operation when water temperature exceeds 200 degrees F (adjustable). Manual reset high limit shall shut down boiler operation when water temperature exceeds 205 degrees F (adjustable).

F. Install emergency shutdown switch near boiler room exit door. Wire switch through the burner controls.

G. Boiler shall be started and stopped automatically through the boiler control panel.

3.4 FIELD QUALITY CONTROL

A. Perform tests and inspections and prepare test reports.

1. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect components, assemblies, and equipment installations, including connections, and to assist in testing.

B. Tests and Inspections:

1. Perform installation and startup checks according to manufacturer's written instructions.

2. Leak Test: Hydrostatic test. Repair leaks and retest until no leaks exist.

3. Operational Test: Start units to confirm proper motor rotation and unit operation. Adjust air-fuel ratio and combustion.

4. Test and adjust controls and safeties. Replace damaged and malfunctioning controls and equipment.

a. Check and adjust initial operating set points and high- and low-limit safety set points of fuel supply, water level, and water temperature.

C. Remove and replace malfunctioning units and retest as specified above.

3.5 DEMONSTRATION

A. Provide 1 hour of instruction to Government personnel. Include operation of boiler including accessories and controls, procedures for startup and shutdown, troubleshooting, servicing, and preventive maintenance.

END OF SECTION 235223

SECTION 260010

GENERAL ELECTRICAL PROVISIONS

A. This section includes basic requirements of a common or administrative nature that pertain to all electrical work.

1 .2 WORK INCLUDED

A. Furnish, install, test, and place in satisfactory and successful operation all equipment, materials, devices, necessary appurtenances, wiring and connections to provide a complete and operable mechanical system.

1 .3 QUALITY ASSURANCE

A. Worker's Qualifications: All electrical work shall be performed by licensed electricians or under the direct supervision of a licensed electrician.

B. Codes and Regulations:

1. All work shall meet requirements of governing codes and regulations, NFPA 70 (NEC), and NESC.

2. The electrical installation shall meet the requirements of NECA Standard of Installation, except where otherwise specified.

C. UL Listing:

1. All electrical materials and equipment shall meet requirements of the applicable standards of UL if UL standards exist for such materials and equipment.

2. The UL authorized listing mark is acceptable as evidence that the materials meet this requirement.

3. In lieu of UL authorized listing mark, the Contractor may submit independent proof satisfactory to the Contracting Officer that the materials meet the standards.

4. Materials and equipment shall be installed only for their intended operational purpose.

D. Standard Products: Provide only new electrical equipment of current standard design.

E. Finished Surfaces:

1. Finished surfaces of existing facilities that are marred, scratched, or damaged shall be refinished to match original condition.

2. Building surfaces that have been altered for the proper installation of electrical equipment shall be restored by skilled personnel of the trades involved at no additional expense to the Government.

F. Polychlorinated Biphenyl (PCB): Equipment containing PCB is not acceptable.

PART 3 EXECUTION

3 .1 INSPECTION

A. Demonstrate that electrical work operates satisfactorily and in accordance with the requirements of the specifications.

3 .2 TESTING

A. General:

1. Make all tests in the presence of the Contracting Officer.

2. Furnish all instruments and provide qualified personnel to perform all required tests.

3. Perform all tests at no additional expense to the Government.

4. Operate all electrical equipment within the ranges specified by manufacturer.

5. Correct defects revealed by the tests.

B. Balance Test: Test for proper load balance on the system, and make adjustments as required.

C. Conductors: Prior to energization of circuitry, test installed wires and cables to ensure that insulation resistance levels are adequate, test wires and cables for electrical continuity and for short-circuits.

D. Wiring devices: Ensure proper polarity of connections. Prior to system energization, test wiring devices in accordance with manufacturer's recommendations.

E. Grounding:

1. Upon completion of installation of electrical grounding and bonding systems, test ground resistance with ground resistance tester.

2. Where test shows resistance-to-ground is over 25 ohms, reduce resistance to 25 ohms or less by driving additional ground rods; then retest to demonstrate compliance.

3 .3 EXISTING EQUIPMENT AND WIRING

A. Modify existing electrical installation as required by new construction. Provide necessary conduit system, wire, and connections for a complete and operable system.

B. Removing Existing Equipment: Existing equipment specified to be removed becomes property of Contractor and shall be removed from site, unless otherwise specified.

Spec Sheets

Major John Boiler #1

(Note: As an advisory, the Weil_Mclain SGO-5 Steam Boiler fulfills this requirement)

General Information

Medium Steam Heat Exchanger Material Cast Iron

Fuel Type Oil

Combustion Type Conventional

Vent Type Chimney Vent

DHW Production Available

Modulating/Staging Single Stage Mount Type Floor Maximum Altitude 2000 Feet

Performance

AFUE

83 % (Minimum) Input Rate

1.45 GPH (Minimum)

DOE Heating Capacity 174000 BTU (Minimum)

Net I=B=R Capacity 131000 BTU (Minimum)

Electrical Data Phase Frequency 60 Hz

Dimensions Product Height 34” – 36” Product Width 19” – 21” Product Depth 22”-24”

Certifications Country of Origin United States CSA Listed Yes ASME Certified Yes AHRI Certified Yes

Warranty Information

Parts Warranty 2 Years Heat Exchanger Warranty 10 Years

Major John Boiler #2

(Note: As an advisory, the Weil_Mclain SGO-8 Steam Boiler fulfills this requirement)

General Information

Medium Steam Heat Exchanger Material Cast Iron

Fuel Type Oil

Combustion Type Conventional

Vent Type Chimney Vent

DHW Production Available

Modulating/Staging Single Stage Mount Type Floor Maximum Altitude 2000 Feet

Performance

AFUE

82 % (Minimum) Input Rate

2.3 GPH (Minimum)

DOE Heating Capacity 266000 BTU (Minimum)

Net I=B=R Capacity 200000 BTU (Minimum)

Efficiency Type Thermal Efficiency

Electrical Data Phase

Frequency 60 Hz

Dimensions Product Height 34” – 36" Product Width 19” – 21” Product Depth 31” – 33”

Certifications Country of Origin United States CSA Listed Yes ASME Certified Yes AHRI Certified Yes

Warranty Information

Parts Warranty 2 Years Heat Exchanger Warranty 10 Years

Elisha Jones Boiler #1

(Note: As an advisory, the Lochinvar KHB199 modulating gas boiler (AFUE 95%) fulfills this requirement)

General Information

GALLON CAPACITY 5.0 Min HEATING SURFACE (SQ. FT.) 15.66 Minimum

WATER CONNECTIONS 1-1/4”

20°F ΔT WATER FLOW (GPM) 19

HEAD LOSS (FT. OF HD.) 1.13

35°F ΔT WATER FLOW (GPM) 11

HEAD LOSS (FT. OF HD.) .38

MAX. WORKING PRESSURE (PSI) 80

# OF RELIEF VALVES 1

RELIEF VALVE SIZE ¾”

RELIEF VALVE RATING (MBH) 535

RELIEF VALVE PRESSURE RATING (PSI) 30

GAS

INLET CONNECTION ½”

MAX. INLET PRESSURE, NAT 14.0”w.c.

MIN. INLET PRESSURE, NAT 4.0”w.c MAX. INLET PRESSURE, LP 14.0”w.c.

MIN. INLET PRESSURE, LP 8.0”w.c.

BTU/HR INPUT 199,999

BTU/HR OUTPUT (HIGH FIRE) 189,999

BTU/HR OUTPUT (LOW FIRE) 18,999

ELECTRICAL (Boiler and Pump Only)

VOLTAGE/HEATER 120

VOLTAGE/CONTROL 24

FLA 3.3

MCA 4.2

DIMENSIONS

HEIGHT 42”-44”

WIDTH 15”-17”

DEPTH 18”-20”

SERVICE CLEARANCES

FRONT 24” Minimum

REAR 0”

RIGHT SIDE 0”

LEFT SIDE 24” Minimum TOP 24” Minimum

DIRECT VENTING DIRECT VENTING

SIZE 3”

VENT CATEGORY IV

VENT MATERIAL

PVC/CPVC/PP/AL29-4C

EXISTING BOILERS

Major John Boiler #1

May 2020 Photo of Existing Boilers Page 1 of 1

Major John Boiler #2

Elisha Jones Boiler #3

A. Building will be occupied during construction.