J-2 SOW B533 Hotwater Heaters.pdf

B533 HOT WATER HEATERS 010150 – 1

BLACKWELL JOB CORPS CCC GENERAL REQUIREMENTS

B533 HOT WATER HEATERS

BLACKWELL JOB CORPS CIVILIAN CONSERVATION CENTER

SECTION 010150

GENERAL REQUIREMENTS

PART 1 – SUMMARY OF WORK

1.1 DESCRIPTION

A. Work for this project requires the contractor to be responsible for supplying all labor, materials, equipment, utilities, miscellaneous items, freight and delivery and all necessary valid licenses for the work summarized as follows:

1. Replace two gas fired hot water heaters. Building #533. Deficiency #133234

1.2 LOCATION

A. This project is located at the Blackwell Job Corps Civilian Conservation Center located

5.1 of miles from Laona, WI in Forest County. The address is 4155 County Road H, 54541. Driving instructions can be obtained from the Center by calling 715-674-2311.

1.3 PROJECT SCHEDULING

A. Work hours for this project are between 8:00 AM-4:30 PM Monday through Friday. The contractor needs to provide 24 hours notice prior to the work in each building.

1.4 POINT OF CONTACT

Center Point of Contact: Greg Ciske, AWPO, 715-674-7662. Greg.a.ciske@usda.gov

1.5 USE OF PREMISES

A. Confine constructions operations to immediate area of work. Do not disturb portions of

Project site beyond areas in which the Work is indicated.

B. Government will occupy site and buildings during entire construction period. Cooperate with Government during construction operations to minimize conflicts and facilitate

Government usage. Perform the work so as not to interfere with Government's day-to-day operations.

C. Keep driveways, parking areas, loading areas and entrances to buildings clear and available to Government, Government's employees, and emergency vehicles at all times.

Do not use these areas for parking or storage of materials. Do not close or obstruct walkways, corridors, or other occupied or used facilities without written permission from

Government and authorities having jurisdiction.

1.6 WORK RESTRICTIONS

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A. Smoking is not permitted within the buildings or within 25 feet (8 m) of entrances, operable windows, or outdoor air intakes.

1.7 PERMITS

A. Not Applicable

1.8 SCHEDULE OF ITEMS

A. Schedule of Items: The project Schedule of Items includes several sections to organize the work into Base Items and Optional Items.

1. Provide pricing for all items listed in the Schedule of Items.

2. Contract award will be made for all Base Items.

B. Base Items (BI):

1. Base Item No. 1- Replace two gas fired hot water heaters. Building #533. Item Deficiency #133234

a. Measurement: This item is measured as a Lump Sum quantity.

b. Payment: The contract lump sum price as shown in the Schedule of Items includes all materials, equipment, labor and incidentals to:

1) Remove the two existing Bradford White 100 gallon water heaters.

2) Install two commercial grade, condensing with condensate neutralizer kit terminated over floor drain, 100 gallon each, 199.9 input capacity, 239 GPH recovery at 100 degree rise. Ensure water heaters meet or exceeded the latest Energy Star and ASHRAE 90.1.

3) Install water heaters on new 4” concrete house keeping pad.

4) Install approximately 6 gallon expansion tank.

5) Reuse as much of the existing electrical and piping available.

6) All gas connections need to meet current code.

7) Perform water/gas leak testing on both heaters.

8) Replace any disturbed pipe insulation to ensure complete coverage.

9) Startup and test operations, provide O&M manual.

10) Provide 1 year warranty on equipment and workmanship.

PART 2 – SUBMITTAL PROCEDURES

2.1 DEFINITIONS

A. Action Submittals: Written and graphic information that requires Government approval.

B. Informational Submittals: Written information that does not require Government approval. Submittals may be rejected for not complying with requirements.

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2.2 PROCEDURES

A. Contractor Responsibilities

1. Review each submittal and check for compliance with the Contract Documents.

2. Highlight, encircle, or otherwise identify deviations from the Contract Documents on submittals.

3. Include the following information on label or cover sheet for processing and recording action taken:

a. Project name.

b. Date.

c. Name and address of Contractor.

d. Name of manufacturer.

e. Unique identifier, including revision number.

f. Number and title of appropriate Specification Section.

g. Drawing number and detail references, as appropriate.

h. Date of Contractor’s approval.

i. Statement certifying that submittal has been reviewed, checked, and approved by the Contractor for compliance with the Contract Documents.

4. The Government will not review submittals that do not bear Contractor's approval and will return them without action.

5. Unless additional copies are required for final submittal, and unless the Contracting

Officer (CO) observes noncompliance with provisions of the Contract Documents, initial submittal may serve as final submittal.

6. Only final submittals with mark indicating action taken by Government are to be used for construction.

7. Submittals not required by the Contract Documents will not be reviewed and may be discarded.

B. Processing Time: Time for review shall commence on CO's receipt of submittal.

1. Initial Review: Government will review initial submittal within 10 working days.

Additional time may be needed if processing must be delayed to permit coordination with subsequent submittals. CO will advise Contractor when a submittal being processed must be delayed for coordination.

2. Resubmittals: If resubmittal is necessary, it will be processed in same timeframe as initial submittal.

2.3 ACTION SUBMITTALS

A. Prepare and submit Action Submittals required in the Technical Specifications in this contract, if applicable, and as indicated at the end of this subsection.

1. Submit two copies of each submittal, unless otherwise indicated. CO will return one copy. Mark up and retain one returned copy as a Project Record Document.

Electronic submission of PDFs is an acceptable alternative to paper submission.

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B. Collect information into a single submittal for each element of construction and type of product or equipment.

1. Mark each copy of each submittal to show which products and options are applicable.

2. Include the following information, as applicable:

a. Manufacturer's written recommendations.

b. Manufacturer's product specifications.

c. Manufacturer's installation instructions.

d. Manufacturer's catalog cuts.

e. Wiring diagrams showing factory-installed wiring.

f. Compliance with recognized trade association standards.

g. Compliance with recognized testing agency standards.

C. Required Action Submittals

1. Product data for all devices in the system.

2. Provide the product data for welding arms.

3. Provide a sketch for mounting and connecting each arm.

2.4 INFORMATIONAL SUBMITTALS

A. Prepare and submit Informational Submittals required in the Technical Specifications in this contract, if applicable, and as indicated at the end of this subsection.

1. Submit one copy of each submittal, unless otherwise indicated. CO will not return copy. Electronic submission of PDFs is an acceptable alternative to paper submission.

2. Provide a statement that includes signature of entity responsible for preparing certification.

B. Required Informational Submittals:

1. Construction Schedule

2. Sample Manufacturer Warranty

3. Sample One Year Warranty on the entire work.

PART 3 – TEMPORARY FACILITIES AND CONTROLS

3.1 USE OF UTILITIES

A. Utilities: Use of Government existing facilities will be permitted without metering and without payment of use charges, as long as facilities are cleaned and maintained in an acceptable condition. At Substantial Completion, restore these facilities to condition existing before initial use. The following are available for use by the contractor: water, and electrical power services. The following are not available: telephone service.

3.2 SANITARY FACILITIES

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A. Sanitary facilities are available for use by the Contractor. Facilities must be cleaned and maintained daily.

3.3 STAGING AREAS

A. Coordinate on-site staging and storage requirements with the Center Point of Contact or the Contracting Officer Representative (COR).

3.4 CONSTRUCTION WASTE DISPOSAL FACILITIES

A. Provide waste-collection containers in sizes adequate to handle waste from construction operations. Containerize and clearly label hazardous, dangerous, or unsanitary waste materials separately from other waste.

3.5 SAFETY AND ENVIRONMENTAL PROTECTION

A. Environmental Protection: Contractor shall provide protection, operate temporary facilities, and conduct construction in ways and by methods that comply with environmental regulations and that minimize possible air, waterway, and subsoil contamination or pollution or other undesirable effects.

B. Barricades, Warning Signs, and Lights: Comply with the national or state Manual on

Uniform Traffic Control Devices (MUTCD) for erecting structurally adequate barricades, paint with appropriate colors, graphics, and warning signs/lights to inform personnel and public of possible hazard.

C. Fire Protection.

1. Store combustible materials in containers in fire-safe locations.

2. Maintain unobstructed access to fire extinguishers, fire hydrants, fire-protection facilities, stairways, and other access routes for firefighting. Prohibit smoking in hazardous fire-exposure areas.

3. Supervise welding operations, combustion-type temporary heating units, and similar sources of fire ignition.

PART 4 – ACCIDENT PREVENTION

4.1 DESCRIPTION

A. This section consists of establishing an effective accident prevention plan and providing a safe environment for personnel and visitors.

4.2 SUBMITTALS

A. Accident Prevention Plan: Before on-site work begins, submit a company approved accident prevention plan. This plan will be posted in the contract file. Design the plan to address Federal, State, and Local Occupational Safety and Health requirements that apply

B533 HOT WATER HEATERS 010150 – 6

to this project. No progress payments will be processed until the plan is received. As a minimum the plan shall include:

1. Name, position title and contact information of company executive responsible for approving the Accident Prevention Plan.

2. Name and contact information of supervisor responsible to carry out the plan.

3. Outline of each phase of the work, the hazards associated with each major phase, and the methods proposed to ensure property protection and safety of the public, government personnel, and the Contractor's employees. Identify the work included under each phase by reference to specification section or division numbers.

4. Contingency plans for emergency situations such as medical, fire, hazard material spills and other contract assessed hazard prevention and abatement requirement needs that apply to this project.

B. Certificates: Provide certificates from a mechanic that all mechanical equipment has been inspected and meets OSHA requirements.

C. Submit a copy of test reports, as required by OSHA, for personnel working with hazardous materials.

D. Submit a brief report of safety meetings and of inspections.

E. Upon request, submit proof of employees' qualifications to perform assigned duties in a safe manner.

4.3 QUALITY ASSURANCE

A. Clauses entitled "Accident Prevention" and "Permits and Responsibilities" of the General

Provisions: In case of conflicts between Federal, state, and local safety and health requirements, the most stringent shall apply. Equipment or tools not meeting OSHA requirements will not be allowed on the project sites. Failure to comply with the requirements of this section and related sections may result in suspension of work.

B. Qualifications of Employees: Ensure employees are physically qualified to perform assigned duties in a safe manner.

4.4 ACCIDENT REPORTING

A. Reportable Accidents: A reportable accident is defined as death, occupational disease, traumatic injury to employees or the public, property damage by accident in excess of

$100, and fires. Within 7 calendar days of a reportable accident, fill out and forward to the CO a CA-1 form, which may be obtained from CO.

B. All Other Accidents: Report all other accidents to the CO as soon as possible and assist the CO and other officials as required in the investigation of the accident.

4.5 FIRST AID FACILITIES

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A. Provide adequate facilities for the number of employees and the type of construction at the site.

4.6 PERSONNEL PROTECTIVE EQUIPMENT

A. Meet requirements of NIOSH and MSHA, where applicable, as well as ANSI.

4.7 EMERGENCY INSTRUCTIONS

A. Post telephone numbers and reporting instructions for ambulance, physician, hospital, fire department, and police in conspicuous locations at the work site.

4.8 PROTECTIVE EQUIPMENT

A. Inspect personal protective equipment daily and maintain in a serviceable condition.

Clean, sanitize, and repair, as appropriate, personal items before issuing them to another individual.

B. Inspect and maintain other protective equipment and devices before use and on a periodic basis to ensure safe operation.

4.9 SAFETY MEETINGS

A. As a minimum, conduct weekly 15-minute "toolbox" safety meetings. These meetings shall be conducted by a foreman and attended by all construction personnel at the worksite.

4.10 HARD HATS AND PROTECTIVE EQUIPMENT AREAS

A. The CO will designate a hard hat area. Post the hard hat area in a manner satisfactory to the CO.

B. It is the Contractor's responsibility to require all those working on or visiting the site to wear hard hats and other necessary protective equipment at all times. As a minimum, provide two hard hats for use by visitors. Change liners before reissuing hats.

4.11 TRAINING

A. First Aid: Provide adequate training to ensure prompt and efficient first aid.

B. Hazardous Material: Train and instruct each employee exposed to hazardous material in safe and approved methods of handling and storage. Hazardous materials are defined as explosive, flammable, poisonous, corrosive, oxidizing, irritating, or otherwise harmful substances that could cause death or injury.

PART 5 – EXECUTION REQUIREMENTS

5.1 EXAMINATION

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A. Before beginning work, examine areas and document existing conditions. Proceed with installation only after unsatisfactory conditions have been corrected. Proceeding with the

Work indicates acceptance of surfaces and conditions.

B. Field verify all new and existing dimensions affecting the work of this contract before ordering products.

C. Immediately on discovery of the need for clarification of the Contract Documents, submit a request for information to CO. Include a detailed description of problem encountered, together with recommendations for changing the Contract Documents.

5.2 INSTALLATION

A. Locate the Work and components of the Work accurately, in correct alignment and elevation to fit with existing construction.

B. Make vertical work plumb and make horizontal work level.

C. Install per manufacturer's written instructions and recommendations.

5.3 PROGRESS CLEANING

A. Clean Project site and work areas daily, including common areas. Dispose of materials lawfully.

1. Comply with NFPA 241 requirements for removal of combustible waste materials and debris.

2. Do not hold materials more than 7 days during normal weather or 3 days if the temperature is expected to rise above 80 deg F (27 deg C).

B. Burying or burning waste materials on-site will not be permitted. Washing waste materials down sewers or into waterways will not be permitted.

5.4 PROTECTION OF INSTALLED CONSTRUCTION

A. Provide protection and maintain conditions that ensure installed Work does not get damaged or deteriorated prior to Substantial Completion.

5.5 CORRECTION OF THE WORK

A. Repair or remove and replace defective construction. Restore damaged substrates and finishes.

1. Repairing includes replacing defective parts, refinishing damaged surfaces, touching up with matching materials, and properly adjusting operating equipment.

PART 6 – OPERATION AND MAINTENANCE MANUALS

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6.1 OPERATION AND MAINTENANCE MANUALS

A. Assemble a complete set of operation and maintenance data indicating the operation and maintenance of each system, subsystem, and piece of equipment not part of a system.

Include operation and maintenance data required in individual Specification Sections and as follows:

1. Operation Data: Include emergency instructions and procedures, system and equipment descriptions, operating procedures, and sequence of operations.

2. Maintenance Data: Include manufacturer's information, list of spare parts, maintenance procedures, maintenance and service schedules for preventive and routine maintenance, and copies of warranties and bonds.

PART 7 – CLOSEOUT PROCEDURES

7.1 SUBSTANTIAL COMPLETION

A. Definition of Substantial Completion: The Date certified by the CO when construction is sufficiently complete, in accordance with the Contract Documents, so the Government can occupy or utilize the Work or designated portion thereof for the use for which it is intended, as expressed in the Contract Documents.

B. Preliminary Procedures: Before requesting inspection for determining date of Substantial

Completion, complete the following. List items below that are incomplete in request.

1. Prepare a list of items to be completed and corrected (punch list), the value of items on the list, and reasons why the Work is not complete.

2. Advise the CO) of pending insurance changeover requirements.

3. Submit specific warranties, workmanship bonds, final certifications, and similar documents.

4. Obtain and submit releases permitting Government unrestricted use of the Work and access to services and utilities.

5. Deliver tools, spare parts, extra materials, and similar items to location designated by Government. Label with manufacturer's name and model number where applicable.

6. Complete startup testing of systems.

7. Submit changeover information related to Government occupancy, use, operation, and maintenance.

8. Complete final cleaning requirements, including touchup painting.

9. Touch up and otherwise repair and restore marred exposed finishes to eliminate visual defects.

C. Inspection: Submit a written request for inspection for Substantial Completion. On receipt of request, CO will either proceed with inspection or notify Contractor of unfulfilled requirements. CO will prepare the Certificate of Substantial Completion after inspection or will notify Contractor of items, either on Contractor's list or additional

B533 HOT WATER HEATERS 010150 – 10

items identified by CO, that must be completed or corrected before certificate will be issued.

1. Reinspection: Request reinspection when the Work identified in previous inspections as incomplete is completed or corrected.

2. Results of completed inspection will form the basis of requirements for Final

Completion.

7.2 FINAL COMPLETION

A. Preliminary Procedures: Before requesting final inspection for determining date of Final

Completion, complete the following:

1. Submit certified copy of CO’s Substantial Completion inspection list of items to be completed or corrected (punch list), endorsed and dated by CO. The certified copy of the list shall state that each item has been completed or otherwise resolved for acceptance.

2. Submit evidence of final, continuing insurance coverage complying with insurance requirements.

3. Instruct Government personnel in operation, adjustment, and maintenance of products, equipment, and systems.

B. Inspection: Submit a written request for final inspection for acceptance. On receipt of request, CO will either proceed with inspection or notify Contractor of unfulfilled requirements. CO will prepare a final Certificate for Payment after inspection or will notify Contractor of construction that must be completed or corrected before certificate will be issued.

1. Reinspection: Request reinspection when the Work identified in previous inspections as incomplete is completed or corrected.

7.3 LIST OF INCOMPLETE ITEMS (PUNCH LIST)

A. Preparation: Submit two copies of list. Include name and identification of each space and area affected by construction operations for incomplete items and items needing correction including, if necessary, areas disturbed by Contractor that are outside the limits of construction.

7.4 PROJECT RECORD DOCUMENTS

A. General: Do not use Project Record Documents for construction purposes. Protect

Project Record Documents from deterioration and loss. Provide access to Project Record

Documents for CO's reference during normal working hours.

B. Record Drawings: Maintain and submit one set of blue- or black-line white prints of

Contract Drawings and Shop Drawings.

1. Mark Record Prints to show the actual installation where installation varies from that shown originally. Require individual or entity who obtained record data, B533 HOT WATER HEATERS 010150 – 11 whether individual or entity is Installer, subcontractor, or similar entity, to prepare the marked-up Record Prints.

a. Give particular attention to information on concealed elements that cannot be readily identified and recorded later.

b. Record data as soon as possible after obtaining it. Record and check the markup before enclosing concealed installations.

2. Mark record sets with erasable, red-colored pencil. Use other colors to distinguish between changes for different categories of the Work at the same location.

3. Note Construction Change Directive numbers, Change Order numbers, alternate numbers, and similar identification where applicable.

4. Identify and date each Record Drawing; include the designation "PROJECT

RECORD DRAWING" in a prominent location. Organize into manageable sets;

bind each set with durable paper cover sheets. Include identification on cover sheets.

7.5 FINAL CLEANING

A. General: Provide final cleaning. Conduct cleaning and waste-removal operations to comply with local laws and ordinances and Federal and local environmental and antipollution regulations.

B. Cleaning Agents: Use cleaning materials and agents recommended by manufacturer or fabricator of the surface to be cleaned. Do not use cleaning agents that are potentially hazardous to health or property or that might damage finished surfaces.

C. Complete the following cleaning operations before requesting inspection for certification of Substantial Completion for entire Project or for a portion of Project:

1. Clean Project site, yard, and grounds, in areas disturbed by construction activities, including landscape development areas, of rubbish, waste material, litter, and other foreign substances.

2. Remove tools, construction equipment, machinery, and surplus material from

Project site.

3. Touch up and otherwise repair and restore marred, exposed finishes and surfaces.

Replace finishes and surfaces that cannot be satisfactorily repaired or restored or that already show evidence of repair or restoration.

D. Remove waste materials from Project site and dispose of lawfully.

END OF SECTION 010150

B533 HOT WATER HEATERS 223400 – 1

SECTION 223400 - FUEL-FIRED, DOMESTIC-WATER HEATERS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Commercial, power-burner, gas-fired, storage, domestic-water heaters.

2. Commercial, direct-vent, gas-fired, storage, domestic-water heater.

3. Domestic-water heater accessories.

1.2 ACTION SUBMITTALS

A. Product Data: For each type of product.

1.3 INFORMATIONAL SUBMITTALS

A. Product Certificates: For each type of commercial, gas-fired, domestic-water heater.

B. Sample warranty.

1.4 CLOSEOUT SUBMITTALS

A. Operation and maintenance data.

1.5 COORDINATION

A. Coordinate sizes and locations of concrete bases with actual equipment provided.

1.6 WARRANTY

A. Special Warranty: Manufacturer agrees to repair or replace components of fuel-fired, domestic-water heaters that fail in materials or workmanship within specified warranty period.

1. Warranty Periods: From date of Substantial Completion.

a. Commercial, Gas-Fired, Storage, Domestic-Water Heaters:

1) Storage Tank: Five years.

2) Controls and Other Components: Two year(s).

b. Expansion Tanks: Five years.

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PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by an NRTL, and marked for intended location and use.

B. ASHRAE/IES Compliance: Fabricate and label fuel-fired, domestic-water heaters to comply with ASHRAE/IES 90.1.

C. ASME Compliance:

1. Where ASME-code construction is indicated, fabricate and label commercial, domestic-water heater storage tanks to comply with ASME Boiler and Pressure Vessel Code:

Section VIII, Division 1.

2. Where ASME-code construction is indicated, fabricate and label commercial, finned-tube, domestic-water heaters to comply with ASME Boiler and Pressure Vessel Code:

Section IV.

D. NSF Compliance: Fabricate and label equipment components that will be in contact with potable water to comply with NSF 61 and NSF 372.

2.2 COMMERCIAL, GAS-FIRED, STORAGE, DOMESTIC-WATER HEATERS

A. Commercial, Power-Burner, Gas-Fired, Storage, Domestic-Water Heaters:

1. Standard: ANSI Z21.10.3/CSA 4.3.

2. Storage-Tank Construction: ASME-code steel with 150-psig working-pressure rating.

a. Tappings: Factory fabricated of materials compatible with tank. Attach tappings to tank before testing.

1) NPS 2 and Smaller: Threaded ends in accordance with ASME B1.20.1.

2) NPS 2-1/2 and Larger: Flanged ends in accordance with ASME B16.5 for steel and stainless steel flanges and in accordance with ASME B16.24 for copper and copper-alloy flanges.

3. Factory-Installed, Storage-Tank Appurtenances:

a. Anode Rod: Replaceable magnesium.

b. Dip Tube: Required unless cold-water inlet is near bottom of tank.

c. Drain Valve: Corrosion-resistant metal with hose-end connection.

d. Insulation: Comply with ASHRAE/IES 90.1. Surround entire storage tank except connections and controls.

e. Jacket: Steel with enameled finish.

f. Burner: UL 795 for power-burner, gas-fired, domestic-water heaters.

g. Automatic Ignition: ANSI Z21.20/CSA C22.2 No. 60730-2-5, electric, automatic, gas-ignition system.

h. Temperature Control: Adjustable thermostat.

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i. Safety Controls: Automatic, high-temperature-limit and low-water cutoff devices or systems.

j. Combination Temperature-and-Pressure Relief Valves: ANSI Z21.22/CSA 4.4.

Include one or more relief valves with total relieving capacity at least as great as heat input, and include pressure setting less than working-pressure rating of domestic-water heater. Select one relief valve with sensing element that extends into storage tank.

B. Commercial, Power-Vent, Gas-Fired, Storage, Domestic-Water Heaters:

1. Standard: ANSI Z21.10.3/CSA 4.3.

2. Storage-Tank Construction: ASME-code steel with 150-psig working-pressure rating.

a. Tappings: Factory fabricated of materials compatible with tank. Attach tappings to tank before testing.

1) NPS 2 and Smaller: Threaded ends in accordance with ASME B1.20.1.

2) NPS 2-1/2 and Larger: Flanged ends in accordance with ASME B16.5 for steel and stainless steel flanges and in accordance with ASME B16.24 for copper and copper-alloy flanges.

3. Factory-Installed, Storage-Tank Appurtenances:

a. Anode Rod: Replaceable magnesium.

b. Dip Tube: Required unless cold-water inlet is near bottom of tank.

c. Drain Valve: Corrosion-resistant metal with hose-end connection.

d. Insulation: Comply with ASHRAE/IES 90.1. Surround entire storage tank except connections and controls.

e. Jacket: Steel with enameled finish.

f. Burner: For use with power-vent, gas-fired, domestic-water heaters.

g. Automatic Ignition: ANSI Z21.20/CSA C22.2 No. 60730-2-5, electric, automatic, gas-ignition system.

h. Temperature Control: Adjustable thermostat.

i. Safety Controls: Automatic, high-temperature-limit and low-water cutoff devices or systems.

j. Combination Temperature-and-Pressure Relief Valves: ANSI Z21.22/CSA 4.4.

Include one or more relief valves with total relieving capacity at least as great as heat input, and include pressure setting less than working-pressure rating of domestic-water heater. Select one relief valve with sensing element that extends into storage tank.

C. Commercial, Direct-Vent, Gas-Fired, Storage, Domestic-Water Heaters:

1. Standard: ANSI Z21.10.1/CSA 4.1.

2. Storage-Tank Construction: Steel.

a. Tappings: ASME B1.20.1 pipe thread.

b. Pressure Rating: 150 psig .

c. Interior Finish: Comply with NSF 61 and NSF 372 barrier materials for potable-water tank linings, including extending lining material into tappings.

3. Factory-Installed Storage-Tank Appurtenances:

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a. Anode Rod: Replaceable magnesium.

b. Dip Tube: Required unless cold-water inlet is near bottom of tank.

c. Drain Valve: Corrosion-resistant metal with hose-end connection.

d. Insulation: Comply with ASHRAE/IES 90.1.

e. Jacket: Steel with enameled finish.

f. Heat-Trap Fittings: Inlet type in cold-water inlet and outlet type in hot-water outlet.

g. Burner: For use with direct-vent, gas-fired, domestic-water heaters.

h. Ignition: Standing pilot or ANSI Z21.20/CSA C22.2 No. 60730-2-5, electric, automatic, gas-ignition system.

i. Temperature Control: Adjustable thermostat.

j. Combination Temperature-and-Pressure Relief Valve: ANSI Z21.22/CSA 4.4.

Include relieving capacity at least as great as heat input, and include pressure setting less than working-pressure rating of domestic-water heater. Select relief valve with sensing element that extends into storage tank.

4. Direct-Vent System: Through-wall coaxial- or double-channel vent assembly with domestic-water heater manufacturers' outside intake/exhaust screen.

D. Commercial, Gas-Fired, High-Efficiency, Storage, Domestic-Water Heaters:

1. Standard: ANSI Z21.10.3/CSA 4.3.

2. Storage-Tank Construction: ASME-code steel with 150-psig minimum working-pressure rating.

a. Tappings: Factory fabricated of materials compatible with tank. Attach tappings to tank before testing.

1) NPS 2 and Smaller: Threaded ends in accordance with ASME B1.20.1.

2) NPS 2-1/2 and Larger: Flanged ends in accordance with ASME B16.5 for steel and stainless steel flanges and in accordance with ASME B16.24 for copper and copper-alloy flanges.

3. Factory-Installed, Storage-Tank Appurtenances:

a. Anode Rod: Replaceable magnesium.

b. Dip Tube: Required unless cold-water inlet is near bottom of tank.

c. Drain Valve: Corrosion-resistant metal with hose-end connection.

d. Insulation: Comply with ASHRAE/IES 90.1. Surround entire storage tank except connections and controls.

e. Jacket: Steel with enameled finish.

f. Burner or Heat Exchanger: Comply with UL 795 or approved testing agency requirements for gas-fired, high-efficiency, domestic-water heaters.

g. Temperature Control: Adjustable thermostat.

h. Safety Controls: Automatic, high-temperature-limit and low-water cutoff devices or systems.

i. Combination Temperature-and-Pressure Relief Valves: ANSI Z21.22/CSA 4.4.

Include one or more relief valves with total relieving capacity at least as great as heat input, and include pressure setting less than working-pressure rating of domestic-water heater. Select one relief valve with sensing element that extends into storage tank.

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4. Draft Hood: Draft diverter, complying with ANSI Z21.12.

E. Capacity and Characteristics:

1. Capacity: 100 gallon.

2. Recovery: 239 GPH at 100 deg F temperature rise.

3. Temperature Setting: 125 deg F.

PART 3 - EXECUTION

3.1 DOMESTIC-WATER HEATER INSTALLATION

A. Commercial, Domestic-Water Heater Mounting: Install commercial domestic-water heaters on concrete base. Comply with requirements for concrete base specified in Section 033000 "Cast-in-Place Concrete."

1. Exception: Omit concrete bases for commercial domestic-water heaters if installation on stand, bracket, suspended platform, or directly on floor is indicated.

2. Maintain manufacturer's recommended clearances.

3. Arrange units so controls and devices that require servicing are accessible.

4. For supported equipment, install epoxy-coated anchor bolts that extend through concrete base and anchor into structural concrete floor.

5. Place and secure anchorage devices. Use setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.

6. Install anchor bolts to elevations required for proper attachment to supported equipment.

7. Anchor domestic-water heaters to substrate.

B. Install domestic-water heaters level and plumb, in accordance with layout drawings, original design, and referenced standards. Maintain manufacturer's recommended clearances. Arrange units so controls and devices needing service are accessible.

1. Install shutoff valves on domestic-water-supply piping to domestic-water heaters and on domestic-hot-water outlet piping.

C. Install gas-fired, domestic-water heaters in accordance with NFPA 54.

1. Install gas shutoff valves on gas supply piping to gas-fired, domestic-water heaters without shutoff valves.

2. Install gas pressure regulators on gas supplies to gas-fired, domestic-water heaters without gas pressure regulators if gas pressure regulators are required to reduce gas pressure at burner.

3. Install automatic gas valves on gas supplies to gas-fired, domestic-water heaters if required for operation of safety control.

4. Comply with requirements for gas shutoff valves, gas pressure regulators, and automatic gas valves.

D. Install combination temperature-and-pressure relief valves in top portion of storage tanks. Use relief valves with sensing elements that extend into tanks. Extend domestic-water-heater relief-

B533 HOT WATER HEATERS 223400 – 6

valve outlet, with drain piping same as domestic-water piping in continuous downward pitch, and discharge by positive air gap onto closest floor drain.

E. Install combination temperature and pressure relief valves in water piping for domestic-water heaters without storage. Extend domestic-water-heater relief-valve outlet, with drain piping same as domestic-water piping in continuous downward pitch, and discharge by positive air gap onto closest floor drain.

F. Install water-heater drain piping as indirect waste to spill by positive air gap into open drains or over floor drains. Install hose-end drain valves at low points in water piping for domestic-water heaters that do not have tank drains.

G. Install thermometer on outlet piping of domestic-water heaters.

H. Assemble and install inlet and outlet piping manifold kits for multiple domestic-water heaters.

Fabricate, modify, or arrange manifolds for balanced water flow through each domestic-water heater. Include shutoff valve and thermometer in each domestic-water heater inlet and outlet, and throttling valve in each domestic-water heater outlet.

I. Install piping-type heat traps on inlet and outlet piping of domestic-water heater storage tanks without integral or fitting-type heat traps.

J. Fill domestic-water heaters with water.

K. Charge domestic-water expansion tanks with air to required system pressure.

L. Install dielectric fittings in all locations where piping of dissimilar metals is to be joined. The wetted surface of the dielectric fitting contacted by potable water shall contain less than 0.25 percent of lead by weight.

M. Identify system components.

3.2 PIPING CONNECTIONS

A. Comply with requirements for domestic-water piping.

B. Comply with requirements for fuel-oil piping.

C. Comply with requirements for gas piping.

D. Drawings indicate general arrangement of piping, fittings, and specialties.

E. Where installing piping adjacent to fuel-fired, domestic-water heaters, allow space for service and maintenance of water heaters. Arrange piping for easy removal of domestic-water heaters.

3.3 FIELD QUALITY CONTROL

A. Tests and Inspections:

B533 HOT WATER HEATERS 223400 – 7

1. Leak Test: After installation, charge system and test for leaks. Repair leaks and retest until no leaks exist.

2. Operational Test: After electrical circuitry has been energized, start units to confirm proper operation.

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

B. Domestic-water heaters will be considered defective if they do not pass tests and inspections.

3.4 DEMONSTRATION

A. Train Owner's maintenance personnel to adjust, operate, and maintain -water heaters. Training shall be a minimum of one hour.

END OF SECTION 223400

B533 HOT WATER HEATERS 230000 - 1

BLACKWELL JOB CORPS CCCMECHANICAL MATERIALS AND METHODS

SECTION 230000

MECHANICAL MATERIALS AND METHODS

PART 1 - GENERAL

1.1 SUMMARY

A. This section includes mechanical requirements and materials for a complete mechanical system including the following:

1. Mechanical equipment removal.

2. Gas piping.

3. Metal ductwork and associate equipment and accessories.

4. Flexible welding hose and conical exhaust hood.

1.2 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and

Supplementary Conditions and Division 1 Specifications.

1.3 COORDINATION

A. Coordinate shutdown of heating, cooling and ventilation systems with Contracting Of-ficer.

1.4 QUALITY ASSURANCE

A. Fire-Test-Response Characteristics: Provide interior duct insulation and fabric duct with flame-spread and smoke-developed indices of 25 and 50, respectively, according to ASTM E 84 by a testing agency acceptable to authorities having jurisdiction.

1.5 SUBMITTALS

A. Product Submittals: As specified in Division 1 Section, “Submittal Procedures.”

Submit manufacturer's product literature including rated capacities, operating characteristics, furnished specialties, and accessories for each of the following:

1. Gas piping and valves.

2. Flexible welding hose and conical exhaust hood.

PART 2 - PRODUCTS

2.1 GAS PIPING AND MATERIALS

A. Steel Pipe: ASTM A53, Type E or S, Schedule 40, black.

B533 HOT WATER HEATERS 230000 - 2

1. Malleable-Iron Threaded Fittings, ASME B16.3, Class 150, standard pattern with threaded ends according to ASME B1.20.1.

2. Unions: B16.39, Class 150, malleable iron with brass-to-iron seat.

3. Dielectric Unions: Combination fitting of copper alloy and ferrous materials with insulating materials suitable for natural gas, 150 psig maximum operating pressure.

4. Joint Compound and Tape: Suitable for propane.

B. Valves: Designed and approved for propane.

1. Line Shut-off Valves: UL listed and AGA approved, iron body, lubricated plug valve conforming to ASTM A126. Rated for 200 WOG service pressure and -

20 to 200 degree F.

2. Appliance/Equipment Shut-off Valves: UL listed and AGA approved, bronze body, full port ball type with quarter lever handle operation. Rated for 175

WOG service pressure and -20 to 200 degree F.

C. Flexible Connectors:

1. Outdoor, Appliance Flexible Connectors: Comply with ANSI Z21.75.

2. Corrugated stainless-steel tubing with polymer coating.

3. Operating-Pressure Rating: 0.5 psig.

4. End Fittings: Zinc-coated steel.

5. Threaded Ends: Comply with ASME B1.20.1.

6. Maximum Length: 72 inches.

2.2 METAL DUCTWORK

A. Comply with SMACNA's "HVAC Duct Construction Standards-Metal and Flexible" for acceptable materials, material thicknesses, and duct construction methods. Sheet metal materials shall be free of pitting, seam marks, roller marks, stains, discolorations, and other imperfections.

B. Galvanized Sheet Steel: Lock-forming quality; complying with ASTM A 653/A

653M and having G90 coating designation.

C. Fabricate turning vanes to comply with SMACNA’s “HVAC Duct Construction

Standards – Metal and Flexible,” for vanes and vane runners. Vane runners shall automatically align vanes.

D. Round Ductwork: Longitudinal or spiral seam.

E. Joint Sealer: UL listed, Class 1, flame spread 0, fuel contributed 0, smoke developed

0. Water based, nontoxic, noncombustible, and nonflammable.

F. Wall Supports, Exterior: Galvanized or stainless steel strut type support system.

B533 HOT WATER HEATERS 230000 - 3

G. Hangers: Galvanized sheet steel or threaded steel rod. Comply with SMACNA's

"HVAC Duct Construction Standards--Metal and Flexible" for steel sheet width and thickness and for steel rod diameters.

H. Duct Attachments: Sheet metal screws, blind rivets, or self-tapping metal screws;

compatible with duct materials.

I. Instrument Test Holes: Cast iron or cast aluminum to suit duct material, including screw cap and gasket. Size to allow insertion of pilot tube and other testing instruments and of length to suit duct insulation thickness.

2.3 FLEXIBLE CONNECTORS

A. Glass fabric, double coated with neoprene, flame-retardant or noncombustible fabrics, coatings, and adhesives complying with UL 181, Class 1.

1. Minimum Weight: 26 oz./sq. yd.

2. Tensile Strength: 480 lbf/inch in the warp and 360 lbf/inch in the filling.

3. Service Temperature: Minus 40 to plus 200 deg F.

2.4 FLEXIBLE WELDING HOSE AND CONICAL EXHAUST HOOD

A. Welding Hose: Flexible hose developed for welding applications, flame retardant, oil resistant polyester fabric. Car-mon PT Hose or equal.

B. Exhaust Hood: Welding fume receptor formed from high impact rated, non-conduc-tive ABS thermoset polymer compound with integral swivel collar, omni-directional mount circular magnetic base, handle, and collector screen of corrosion resistant metal. Car-mon Model M with Hand damper, Fume dog extraction arm or equal.

C. Each unit should be able to be closed when not in use to maximize the systems ability.

PART 3 - EXECUTION

3.1 MECHANICAL REMOVAL

A. Refer to Division 2 Section "Selective Demolition" for general demolition require-ments and procedures.

B. Disconnect, demolish, and remove HVAC systems, equipment, and components indi-cated to be removed.

1. Ducts to Be Removed: Remove portion of ducts indicated to be removed and cap remaining duct with same or compatible duct material.

2. Ducts to Be Abandoned in Place: Cap ducts with same or compatible duct mate-rial.

B533 HOT WATER HEATERS 230000 - 4

3. Equipment to Be Removed: Disconnect and cap connections. Remove equip-ment.

4. Equipment to Be Removed and Reinstalled: Disconnect and cap connections.

Remove, clean, and store equipment; when appropriate, reinstall, reconnect, and make equipment operational.

5. Equipment to Be Removed and Salvaged: Disconnect and cap connections. Re-move equipment and deliver to Government.

C. If during construction duct, insulation, or equipment to remain is damaged in appear-ance or is unserviceable, remove damaged or unserviceable portions and replace with new products of equal capacity and quality.

D. Disconnect and cap ducts in walls, floors, and ceilings scheduled for removal.

E. Remove, relocate, and extend existing installations to accommodate new construction.

F. Remove exposed abandoned ducts, including abandoned ducts above accessible ceiling finishes, in attic, and in crawl space. For inaccessible ducts, cut pipe flush with walls and floors, cap duct, and patch surfaces.

G. Repair adjacent construction and finishes damaged during demolition and extension work.

H. Extend existing installations using materials and methods as specified.

I. Removed ducts, equipment, etc. become the property of the Contractor unless otherwise noted.

3.2 HVAC SYSTEMS - COMMON REQUIREMENTS

A. Install equipment in accordance with manufacturer’s installation instructions.

B. Install ducts and equipment to allow maximum possible headroom.

C. Install equipment level and plumb, parallel and perpendicular to other building systems and components in exposed interior spaces, unless otherwise indicated.

D. Drawings are diagrammatic and show general design, arrangement, and extent of sys-tems. Do not scale drawings for roughing-in measurement. Field verify locations, and make changes to configurations to suit actual conditions.

3.3 GAS PIPING INSTALLATION

A. General: Comply with NFPA 54, NFPA 58 and the International Fuel Gas Code for installation and purging of gas piping.

B. Below Grade Installation: Coordinate trenching and backfilling with Utility Company and Government.

B533 HOT WATER HEATERS 230000 - 5

C. Exterior, above grade installation:

1. Piping: Schedule 40, steel pipe with malleable-iron fittings and threaded joints.

2. Install fuel gas piping at uniform grade of 0.1 percent slope upward toward ris-ers.

3. Use eccentric reducer fittings to make reductions in pipe sizes. Install fittings with level side down.

4. Exterior-Wall Pipe Penetrations: Install pipe penetrations to allow for 1-inch annular clear space between pipe and wall. Seal penetration weather tight.

5. Install piping at right angles or parallel to building walls. Diagonal runs are pro-hibited unless specifically indicated otherwise.

6. Connect branch piping from top or side of horizontal piping.

7. Install unions in pipes NPS 2 and smaller, adjacent to each valve, at final con-nection to each piece of equipment.

D. Equipment Connection:

1. Install piping adjacent to appliances to allow service and maintenance of appli-ances.

2. Connect piping to appliances, full size of equipment gas inlet. Install manual gas shutoff valve, union, and corrugated stainless-steel tubing. Install valve within 72 inches of each gas-fired appliance and equipment. Install union be-tween valve and appliances or equipment.

3. Sediment Traps: Install tee fitting with capped nipple in bottom to form drip, as close as practical to inlet of each appliance.

4. Install manual gas shutoff valve for each gas appliance ahead of corrugated stainless-steel tubing.

3.4 DUCT INSTALLATION

A. Fabricate and install ducts, elbows, transitions, offsets, branch connections, and other construction according to SMACNA's "HVAC Duct Construction Standards-Metal and Flexible" and complying with requirements for metal thickness, reinforcing types and intervals, tie-rod applications, and joint types and intervals.

B. Install ducts with fewest possible joints.

C. Install fabricated fittings for changes in directions, size, and shape and for connections.

D. Install ducts vertically and horizontally and parallel and perpendicular to building lines; avoid diagonal runs.

E. Install ducts close to walls, overhead construction, columns, and other structural and permanent enclosure elements of building.

F. Install ducts with a clearance of 1 inch, plus allowance for insulation thickness.

B533 HOT WATER HEATERS 230000 - 6

G. Where ducts pass through exterior walls and are exposed to view, cover the opening between the wall and duct or duct insulation with sheet metal flanges of same metal thickness as the duct. Overlap openings on four sides by at least 1-1/2 inches.

H. Protect duct interiors from moisture, construction debris and dust, and other foreign materials. Comply with SMACNA's "Duct Cleanliness for New Construction Guide-lines."

I. Hangers and Supports:

1. Building Attachments: Structural-steel fasteners appropriate for construction materials to which hangers are being attached.

2. Hangers Exposed to View: Threaded rod and angle or channel supports.

3. Support vertical ducts with steel angles or channel secured to the sides of the duct with welds, bolts, sheet metal screws, or blind rivets; support at each floor and at a maximum intervals of 16 feet.

4. Support horizontal ducts within 24 inches of each elbow and within 48 inches of each branch intersection.

J. Duct Sealing:

1. Seal duct seams and joints according to SMACNA's "HVAC Duct Construction

Standards-Metal and Flexible" for duct pressure class indicated. Apply sealant to male end connectors before insertion, and afterward to cover entire joint and sheet metal screws.

2. Seal ducts before external insulation is applied.

3. Static-Pressure Classes: Unless otherwise indicated, construct ducts according to the following:

a. Supply Ducts: Less than 2-inch wg Pressure Class, SMACNA seal class

C, seal transverse joints only.

b. Return and Exhaust Ducts (Negative Pressure): 1/2-inch wg.

c. Welding Exhaust Ducts (Negative Pressure): 4-inch wg.

3.5 FIELD QUALITY CONTROL

A. Notify Contracting Officer at least 48 hours before inspection or testing. Perform test in the presence of the Contracting Officer.

B. Inspect, test, and purge piping according to NFPA 54, NFPA 58, and International

Fuel Gas Code.

1. Test for leaks and defects in piping. If testing is performed in segments, submit separate report for each test, complete with diagram of portion of piping tested.

2. Leave uncovered and unconcealed new, altered, extended, or replaced piping until it has been tested. Expose work that was covered or concealed before it was tested.

B533 HOT WATER HEATERS 230000 - 7

3. Prepare report for each test, signed by Installer, General Contractor, and

Contracting Officer.

4. Gas Pipe Test Procedure:

a. Test with inert gas or air at a pressure of 50 psi for a period of not less than 1 hour without showing any drop in pressure. Check connections with a leak test solution listed for this purpose.

b. Repair leaks and defects with new materials and retest piping, or portion thereof, until satisfactory results are obtained.

c. After testing, purge piping.

END OF SECTION 230000