SOW - ILM ATCT CHILLER REPLACEMENT.pdf

Drawings and Specifications for the

Replacement of One Nominal (50) Ton Air Cooled Chiller and the Addition of a Second Nominal (50) Ton Air Cooled Chiller at the FAA Air Traffic Control Tower Located at the Wilmington International Airport in Wilmington, NC

April 10, 2023

Prepared By: Ashburn, VA TSC

Table of Contents

TAB 1 Project Summary

TAB 2 Pictures Picture 1 Existing Chiller and Surroundings Picture 2 Existing Chiller Picture 3 Existing Chiller and ChW Piping Picture 4 Site View From West Side Picture 5 Existing Chilled Water Pumps

TAB 3 Drawings

TSC-23-160-001 COVER SHEET AND SITE INFO

TSC-23-160-002 PARTIAL SITE PLANS

TSC-23-160-003 ELEVATIONS

TSC-23-160-004 PIPING SCHEMATIC AND

EQUIPMENT SCHEDULE

TSC-23-160-005 MISCELLANEOUS DETAILS

TSC-23-160-006 ELECTRICAL DETAILS

TAB 4 Specifications Section 01100 General Conditions Section 02 24 19 Selective Demolition Section 03 30 33 Cast in Place Concrete Section 23 05 00 Common Work Results for HVAC Section 23 05 19 Meters and Gauges Section 23 05 23 General Duty Valves for HVAC Section 23 05 29 Hangers and Supports for HVAC Section 23 05 33 Heat Tracing For HVAC Piping Section 23 05 48 Vibration Isolation and Seismic Control Section 23 05 93 Testing, Adjusting and Balancing Section 23 07 19 HVAC Equip and Piping Insulation Section 23 21 13 Hydronic Piping Section 23 64 23 Air Cooled Screw Water Chillers Section 26 05 00 Common Work results for Electrical Section 26 05 19 Low Voltage Electrical Conductors Section 26 05 26 Grounding and Bonding for Electrical Section 26 05 33 Raceways and Boxes for Electrical Section 26 05 43 UG Duct and Raceways for Electrical Section 26 28 16 Enclosed Switches and Circuit Breakers

TAB 1

Project Summary

Air Cooled Chiller Replacement Wilmington ATCT, Wilmington, NC

A. Project Location: FAA – WILMINGTON ATCT

2220 Control Tower Drive Wilmington, NC 28405

B. Project Requirements: Provide all labor, materials, equipment and incidentals to replace an existing nominal 50 ton air cooled chiller and add a second nominal 50 ton air cooled chiller.

Work shall be as noted, but not limited to, the scope identified below.

C. Scope of Work:

1.) Participation in a risk mitigation process with site personnel.

2.) Reconfiguration of concrete sidewalk.

3.) Expansion of an existing concrete pad to facilitate an additional chiller.

4.) Reconfiguration of existing electrical circuitry.

5.) The addition new electrical circuitry.

6.) Installation of a new manual transfer switch.

7.) Installation of a new electrical disconnect switch.

8.) The relocation of an existing disconnect switch.

9.) Removal and legal disposal of an existing 50 ton air cooled chiller.

10.) The installation of two (2) new nominal 50 ton air cooled chillers.

11.) The installation of new chilled water piping and appurtenances.

12.) The replacement of two (2) existing chilled water pumps.

13.) The extension of the existing ChW piping heat trace system.

14.) The installation of an underground grounding counterpoise.

15.) Site restoration.

16.) Provision of a 10 year extended warranty – complete unit warranty, parts and labor.

TAB 2

Pictures

ILM ATCT CHILLER PROJECT EXISTING CHILLER AND SURROUNDINGS

ILM ATCT CHILLER PROJECT EXISTING CHILLER

ILM ATCT CHILLER PROJECT EXISTING CHILLER AND CHW PIPING

ILM ATCT CHILLER PROJECT VIEW FROM WEST

ILM ATCT CHILLER PROJECT EXISTING CHILLED WATER PUMPS

TAB 3

Drawings

TAB 4

Specifications

General Conditions 01100-1

SECTION 01100 – GENERAL CONDITIONS

PART 1 - SCHEDULE

1.1 PROJECT SUMMARY

A. Location:

FAA – WILMINGTON, NC

2220 Control Tower Drive Wilmington, NC 28405

B. Scope of Work:

1) Participation in a risk mitigation process with site personnel.

2) Reconfiguration of concrete sidewalk.

3) Expansion of an existing concrete pad to facilitate an additional chiller.

4) Reconfiguration of existing electrical circuitry.

5) The addition new electrical circuitry.

6) Installation of a new manual transfer switch.

7) Installation of a new electrical disconnect switch.

8) The relocation of an existing disconnect switch.

9) Removal and legal disposal of an existing 50 ton air cooled chiller.

10) The installation of two (2) new nominal 50 ton air cooled chillers.

11) The installation of new chilled water piping and appurtenances.

12) The replacement of two (2) existing chilled water pumps.

13) The extension of the existing ChW piping heat trace system.

14) The installation of an underground grounding counterpoise.

15) Site restoration.

16) Provision of a 10 year extended warranty – complete unit warranty, parts and labor.

1.2 WORK SCHEDULE

A. Work shall be completed within 120 days of Notice to Proceed. Acceptable hours of non-invasive, non-intrusive work are M-F, 7am –7pm. Cutover work and intrusive work must be completed during night hours Monday thru Sunday, 10pm-6am.

PART 2 – PROJECT COORDINATION

2.1 PROJECT COORDINATION

A. The Contractor is made aware that this facility is responsible for the control and navigation of air traffic. The unscheduled loss or shut down of air traffic control equipment or associated support equipment for any amount of time will jeopardize safety of the flying public. Contractor shall closely coordinate all work activities with the FAA site POC as to not impact the operation the Air Traffic Control Tower.

General Conditions 01100-2

B. The contractor is advised that ongoing maintenance activities will continue at this facility and that full cooperation is required with maintenance personnel in order to assure continued operation of equipment.

C. The contractor shall not operate existing electronic, electrical or mechanical equipment at this facility.

2.2 ACCESS

A. Contractor personnel will be assigned an FAA point of contact/escort and be continually escorted throughout the project.

2.3 TECHNICAL GUIDANCE/REQUESTS FOR INFORMATION

A. Contractor shall submit, in writing, any requests for technical guidance or requests for changes due to differing field conditions, improved means or methods, material substitutions, or any other reason. Requests shall be submitted to the Contracting Officer.

PART 3 - EXECUTION

3.1 FIELD MEASUREMENTS

A. Contractor is responsible for making complete field measurements. Check all dimensions at the job site for components requiring fit to existing conditions. Check shop drawings and indicate the actual dimension available at all locations.

3.2 SUBMITTALS

A. The contractor shall submit of list of proposed submittals and shop drawings for approval. This list will be known as the Submittal Register.

B. Contractor shall make a submittal and/or shop drawing for each type of material and system list on the Submittal Register. Submittal shall include four (4) copies of cut sheet(s) and/or shop drawings where required. One (1) copy will be returned to contractor with disposition and comments within 21 days of receipt. Action on the shop drawing or submittal shall be one of the following:

a. Approved

b. Approved as Noted

c. Approved as Noted, Resubmission Required

d. Disapproved

If the submittal or shop drawing is returned as Approved as Noted, Resubmission Required the contractor may or may not be able to proceed with procurement of the component as it will depend on the disposition of the required resubmission. Disapproved submittals or shop drawings will require complete rectification of the issue prior to procurement.

General Conditions 01100-3

3.3 PROJECT SAFETY AND HEALTH PROGRAM REQUIREMENTS

A. All on-site work under this Contract shall be performed in compliance with the requirements of all Federal and State Occupational Safety and Health laws and regulations as they apply to construction site activity.

1. Comply with applicable Occupational Safety and Health Standard (29 CFR 1910 and 1926) promulgated pursuant to authority of the Occupational Safety and Health Act of 1970.

2. Comply with any other applicable Federal, State, or local regulations governing workplace safety to the extent that they do not conflict with other clauses of this contract. If a conflict exists between sections of this Contract, the more stringent requirement takes precedence.

3. Take all other proper precautions to protect the safety and health of the contractor’s employees, Federal Aviation Administration employees, and the public. Provide and maintain barricades, guard rails, covered walkways, lighting devices and other protective devices necessary to warn and protect the workmen and general public from hazards at the construction site.

4. Contractor shall maintain a Project Safety and Health Plan which shall address site-specific safety and health requirements and procedures to include, but not limited to excavations, fall protection, electrical safety, scaffold safety, cranes, steel erection, welding, burning and cutting safety, concrete and masonry work.

5. In addition to compliance with applicable statutory and regulatory requirements, the Project Safety and Health Plan shall contain provisions for mandatory safety orientation for every contractor, subcontractor, and vendor employee assigned or sent to the site. Safety orientation shall cover as a minimum the rules and regulations governing on-site construction activities, special known hazards, accident prevention, emergency procedures, and personal protection equipment requirements.

6. As work progresses, the Plan shall be updated to adapt to new situations and new conditions.

Changes to the Project Safety and Health Plan shall be made only with full concurrence of the Contracting Officer.

7. If any unforeseen hazard should become evident during the performance of the work, bring such information to the attention of the Contracting Officer, verbally and in writing. Take the necessary action to re-establish and maintain safe working conditions.

8. The Project Safety and Health Plan shall include MSD sheets for materials and products to be used on the project. MSD sheets shall be maintained at the project site where all employees will have access.

B. The Project Superintendent shall act as Safety Director and be responsible for the implementation, execution and oversight of the Project Safety and Health Plan. The Superintendent shall have authority from the contractor to stop work to abate hazardous conditions or unsafe practices, and to eject any contractor, subcontractor, or vendor employee from the project site for failure to comply with safety requirements. The Project Superintendent’s authority, responsibilities, and duties in the capacity of Safety Director shall be incorporated as part of the written Project Safety and Health Plan. These responsibilities shall include, but not be limited to conducting subcontractor pre-construction safety program reviews, conducting the employee safety orientation training, conducting weekly safety meetings, conducting daily site safety inspections, auditing subcontractor safety compliance, conducting accident investigations, and preparing required periodic and special safety reports.

C. When the Contractor is notified by the Contracting Officer of non-compliance with the safety or health provisions of this contract, the contractor shall immediately, unless otherwise instructed, correct the unsafe or unhealthy condition. If the Contractor fails to comply promptly, all or part of the Work will be stopped by notice from the Contracting Officer. There will not be any allowance for time or compensation due to work stoppage for an unsafe condition.

General Conditions 01100-4

D. The contractor will maintain an accurate record of exposure data and all accidents incidental to work performed under this Contract. The contractor must report the exposure data and accidents to the Contracting Officer.

E. All subcontracts and vendor purchase orders related to this project shall contain provisions requiring compliance with the contractor’s approved Project Safety and Health Plan.

F. Prior to commencing construction, representatives of the Contractor, including the Project

Superintendent, shall hold a Safety Meeting with designated representatives of the Contracting Officer for the purpose of reviewing the approved Project Safety and Health Plan and discussing the implementation of the plan.

G. The Contractor shall take all necessary precautions to prevent injury to the public, occupants, or damage to property of others. The public and occupants include all persons not employed by the Contractor or a subcontractor.

H. Wherever practical, the work area shall be fenced, barricaded or otherwise blocked off from public or occupants to prevent unauthorized entry into the work area.

1. Provide traffic barricades and traffic control signage where construction activities occur in vehicular areas.

2. Corridors, aisles, stairways, doors and exits shall not be obstructed or used in a manner to encroach upon routes of ingress or egress utilized by the public or occupants, or to present an unsafe or unhealthy condition to the public or occupants.

3. Store, position and use equipment, tools, materials, scraps and trash in a manner that does not present a hazard to the public or occupants by accidental shifting, ignition or other hazardous activity.

4. Store and transport refuse and debris in a manner to prevent unsafe and unhealthy conditions for the public and occupants. Cover refuse containers, and remove refuse on a frequent regular basis acceptable. Use tarpaulins or other means to prevent loose transported materials from dropping from trucks.

3.4 TEMPORARY FACILITIES

A. The Contractor shall provide and maintain all required temporary facilities and equipment required to complete the project to include, but not limited to, scaffolding, lighting, staging, storage, physical protection barriers and temporary ventilation.

B. The contractor make provisions to protect the work and all areas/equipment surrounding the work area. Barriers for soldering and shall be of fire resistant construction and shall protect all adjacent areas. A dedicated Fire Watch is required during all welding operations. A fire watch is defined as a competent person whose sole responsibility is to monitor the welding operation and assure that the sparks and fumes generated by welding do not pose a risk to life or property. See section

3.5 for fire extinguisher requirements.

C. The contractor shall be permitted to use facility utility power only after close coordination with the FAA POC on location of connection points.

D. The contractor is advised that running water and sanitary facilities are available at this facility.

General Conditions 01100-5

3.5 FIRE PROTECTION

A. At the pre-construction meeting, the contractor will be shown the locations of fire extinguishers and informed about fire and emergency procedures applicable to the facility during the pre-construction meeting.

B. Contractor shall provide at least one fire extinguisher for welders and plumbers or other trades using open flames in the execution of their work. Maintain “Fire Watch” personnel, with fire extinguisher in hand, during all welding/cutting/soldering or other open flame operations.

3.6 ENVIRONMENTAL PROTECTION AND POLLUTION CONTROL

A. The contractor shall perform all work necessary to prevent environmental pollution during or as a result of construction performed under this contract.

3.7 MATERIALS AND EQUIPMENT

A. Ordering of Materials: Orders for materials and equipment shall be made promptly after approval of submittal in order to avoid any delay to project schedule.

B. Transportation and Delivery: Arrange for delivery to avoid impact to project schedule and to avoid impact to the operation of the existing facility. Deliver materials and equipment in their original, unopened containers bearing the manufacturers label.

C. Storage: Store materials and equipment to provide protection from damage from damage, dust and moisture. Store all flammable or volatile materials properly off site.

D. Arrange storage in a manner to provide easy access for inspection.

E. Manufacture and Fabrication: Design, fabricate and assemble materials and equipment using the best engineering and shop practices. Manufacture all like parts of duplicate units to standard sizes and gages, to be interchangeable. Two or more items of the same kind shall be identical.

F. Equipment and member capacities, sizes and dimensions shown or specified shall be adhered to unless variations are approved in writing.

G. Manufacturer’s Instructions: When contract documents require that the installation of the work shall comply with the manufacturer’s printed instructions, obtain and distribute copies of such instructions to those involved in the installation, including (2) copies to the Contracting Officer.

Maintain one set of instructions at the job site. Strict adherence to the manufacturer’s instructions is required. When project conditions or unique circumstances require deviation from the printed instructions, consult with the Contracting Officer for further guidance. Do not proceed until clear direction has been obtained.

General Conditions 01100-6

3.8 INITIAL MAINTENANCE

A. Maintain new systems until the project is turned over to the FAA.

3.9 CLEANUP AND RESTORATION

A. Contractor is responsible for maintaining the worksite in a clean and safe condition during the work shift as well as after work hours. The contractor shall restore the site to the original condition upon completion of the project.

END OF SECTION 01100

AIR COOLED CHILLER REPLACEMENT WILMINGTON ATCT, WILMINGTON, NC

SELECTIVE DEMOLITION 024119 - 1

SECTION 024119 - SELECTIVE DEMOLITION

1.1 SUMMARY

A. Section Includes:

1. Demolition and removal of selected portions of building or structure.

2. Demolition and removal of selected site elements.

3. Salvage of existing items to be reused or recycled.

1.2 DEFINITIONS

A. Remove: Detach items from existing construction and dispose of them off-site unless indicated to be salvaged or reinstalled.

B. Remove and Reinstall: Detach items from existing construction, in a manner to prevent damage, prepare for reuse, and reinstall where indicated.

C. Existing to Remain: Leave existing items that are not to be removed and that are not otherwise indicated to be salvaged or reinstalled.

D. Dismantle: To remove by disassembling or detaching an item from a surface, using gentle methods and equipment to prevent damage to the item and surfaces; disposing of items unless indicated to be salvaged or reinstalled.

1.3 MATERIALS OWNERSHIP

A. Unless otherwise indicated, demolition waste becomes property of Contractor.

B. Historic items, relics, antiques, and similar objects including, but not limited to, cornerstones and their contents, commemorative plaques and tablets, and other items of interest or value to Owner that may be uncovered during demolition remain the property of Owner.

1. Carefully salvage in a manner to prevent damage and promptly return to Owner.

1.4 PREINSTALLATION MEETINGS

A. Predemolition Conference: Conduct conference at site.

1. Inspect and discuss condition of construction to be selectively demolished.

2. Review structural load limitations of existing structure.

3. Review and finalize selective demolition schedule and verify availability of materials, demolition personnel, equipment, and facilities needed to make progress and avoid delays.

4. Review requirements of work performed by other trades that rely on substrates exposed by selective demolition operations.

5. Review areas where existing construction is to remain and requires protection.

SELECTIVE DEMOLITION 024119 - 2

1.5 INFORMATIONAL SUBMITTALS

A. Qualification Data: For refrigerant recovery technician.

B. Proposed Protection Measures: Submit plan including that indicates the measures proposed for protecting individuals and property for environmental protection, for dust control, for noise control and for odor control . Indicate proposed locations and construction of barriers.

C. Schedule of Selective Demolition Activities: Indicate the following:

1. Detailed sequence of selective demolition and removal work, with starting and ending dates for each activity.

2. Interruption of utility services. Indicate how long utility services will be interrupted.

3. Coordination for shutoff, capping, and continuation of utility services.

4. Use of elevator and stairs.

5. Coordination of Owner's continuing occupancy of portions of existing building and of

Owner's partial occupancy of completed Work.

D. Statement of Refrigerant Recovery: Signed by refrigerant recovery technician responsible for recovering refrigerant, stating that all refrigerant that was present was recovered and that recovery was performed according to EPA regulations. Include name and address of technician and date refrigerant was recovered.

E. Warranties: Documentation indicating that existing warranties are still in effect after completion of selective demolition.

1.6 CLOSEOUT SUBMITTALS

A. Inventory: Submit a list of items that have been removed and salvaged.

1.7 QUALITY ASSURANCE

A. Refrigerant Recovery Technician Qualifications: Certified by an EPA-approved certification program.

1.8 FIELD CONDITIONS

A. Owner will occupy portions of building immediately adjacent to selective demolition area.

Conduct selective demolition so Owner's operations will not be disrupted.

B. Hazardous Materials: It is not expected that hazardous materials will be encountered in the Work.

1. Hazardous materials will be removed by Owner before start of the Work.

2. If suspected hazardous materials are encountered, do not disturb; immediately notify

Contracting Office and FAA site POC for further guidance and direction.

SELECTIVE DEMOLITION 024119 - 3

1.9 COORDINATION

A. Arrange selective demolition schedule so as not to interfere with Air Traffic Operations.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Regulatory Requirements: Comply with governing EPA notification regulations before beginning selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

B. Standards: Comply with ANSI/ASSP A10.6 and NFPA 241.

PART 3 - EXECUTION

3.1 EXAMINATION

A. If applicable, verify that utilities have been disconnected and capped before starting selective demolition operations.

B. Verify that conditions are as expected and selective demolition is safe to proceed.

3.2 PREPARATION

A. Refrigerant: Before starting demolition, remove refrigerant from mechanical equipment according to 40 CFR 82 and regulations of authorities having jurisdiction.

3.3 UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS

A. Existing Services/Systems to Remain: Maintain services/systems indicated to remain and protect them against damage.

B. Existing Services/Systems to Be Removed, Relocated, or Abandoned: Locate, identify, disconnect, and seal or cap off utility services and mechanical/electrical systems serving areas to be selectively demolished.

1. Owner will arrange to shut off indicated services/systems when requested by Contractor.

2. If services/systems are required to be removed, relocated, or abandoned, provide temporary services/systems that bypass area of selective demolition and that maintain continuity of services/systems to other parts of building.

3. Disconnect, demolish, and remove piping and HVAC systems, equipment, and components indicated on Drawings to be removed.

SELECTIVE DEMOLITION 024119 - 4

a. Piping to Be Removed: Remove portion of piping indicated to be removed and cap or plug remaining piping with same or compatible piping material.

b. Piping to Be Abandoned in Place: Drain piping and cap or plug piping with same or compatible piping material and leave in place.

c. Equipment to Be Removed: Disconnect and cap services and remove equipment.

d. Equipment to Be Removed and Reinstalled: Disconnect and cap services and remove, clean, and store equipment; when appropriate, reinstall, reconnect, and make equipment operational.

e. Equipment to Be Removed and Salvaged: Disconnect and cap services and remove equipment and deliver to Owner.

f. Ducts to Be Removed: Remove portion of ducts indicated to be removed and plug remaining ducts with same or compatible ductwork material.

g. Ducts to Be Abandoned in Place: Cap or plug ducts with same or compatible ductwork material and leave in place.

3.4 PROTECTION

A. Temporary Protection: Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent buildings and facilities to remain.

1. Provide protection to ensure safe passage of people around selective demolition area and to and from occupied portions of building.

2. Provide temporary weather protection, during interval between selective demolition of existing construction on exterior surfaces and new construction, to prevent water leakage and damage to structure and interior areas.

3. Protect walls, ceilings, floors, windows, doors and other existing finish work that are to remain or that are exposed during selective demolition operations.

4. Cover and protect furniture, furnishings, and equipment that have not been removed.

B. Remove temporary barricades and protections where hazards no longer exist.

3.5 SELECTIVE DEMOLITION, GENERAL

A. General: Demolish and remove existing construction only to the extent required by new construction and as indicated. Use methods required to complete the Work within limitations of governing regulations and as follows:

1. Proceed with selective demolition systematically, from higher to lower level. Complete selective demolition operations above each floor or tier before disturbing supporting members on the next lower level.

2. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction.

Use hand tools or small power tools designed for sawing or grinding, not hammering and chopping. Temporarily cover openings to remain.

3. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

4. Do not use cutting torches until work area is cleared of flammable materials. At concealed spaces, such as duct and pipe interiors, verify condition and contents of hidden

SELECTIVE DEMOLITION 024119 - 5

space before starting flame-cutting operations. Maintain portable fire-suppression devices during flame-cutting operations.

5. Maintain fire watch during and for at least 2 hours after flame-cutting operations.

6. Maintain adequate ventilation when using cutting torches.

7. Remove decayed, vermin-infested, or otherwise dangerous or unsuitable materials and promptly dispose of off-site.

8. Remove structural framing members and lower to ground by method suitable to avoid free fall and to prevent ground impact or dust generation.

9. Locate selective demolition equipment and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.

B. Site Access and Temporary Controls: Conduct selective demolition and debris-removal operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

C. Removed and Reinstalled Items:

1. Clean and repair items to functional condition adequate for intended reuse.

2. Pack or crate items after cleaning and repairing. Identify contents of containers.

3. Protect items from damage during transport and storage.

4. Reinstall items in locations indicated. Comply with installation requirements for new materials and equipment. Provide connections, supports, and miscellaneous materials necessary to make item functional for use indicated.

D. Existing Items to Remain: Protect construction indicated to remain against damage and soiling during selective demolition. When permitted by Architect, items may be removed to a suitable, protected storage location during selective demolition and reinstalled in their original locations after selective demolition operations are complete.

3.6 SELECTIVE DEMOLITION PROCEDURES FOR SPECIFIC MATERIALS

A. Concrete: Demolish in small sections. Using power-driven saw, cut concrete to a depth of at least 3/4 inch at junctures with construction to remain. Dislodge concrete from reinforcement at perimeter of areas being demolished, cut reinforcement, and then remove remainder of concrete.

Neatly trim openings to dimensions indicated.

B. Concrete: Demolish in sections. Cut concrete full depth at junctures with construction to remain and at regular intervals using power-driven saw, and then remove concrete between saw cuts.

C. Masonry: Demolish in small sections. Cut masonry at junctures with construction to remain, using power-driven saw, and then remove masonry between saw cuts.

D. Concrete Slabs-on-Grade: Saw-cut perimeter of area to be demolished, and then break up and remove.

3.7 DISPOSAL OF DEMOLISHED MATERIALS

A. Remove demolition waste materials from Project site and dispose of them in an EPA-approved construction and demolition waste landfill acceptable to authorities having jurisdiction.

SELECTIVE DEMOLITION 024119 - 6

1. Do not allow demolished materials to accumulate on-site.

2. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

3. Remove debris from elevated portions of building by chute, hoist, or other device that will convey debris to grade level in a controlled descent.

B. Burning: Do not burn demolished materials.

3.8 CLEANING

A. Clean adjacent structures and improvements of dust, dirt, and debris caused by selective demolition operations. Return adjacent areas to condition existing before selective demolition operations began.

END OF SECTION 024119

CAST-IN-PLACE CONCRETE 03 30 00 - 1

SECTION 03 30 00 - CAST-IN-PLACE CONCRETE

PART 1 - GENERAL

1.1 SUMMARY

A. This Section specifies cast-in place concrete, including formwork, reinforcement, concrete materials, mixture design, placement procedures, and finishes for the following:

1. Slab on Ground.

1.2 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Design Mixtures: For each concrete mixture.

C. Steel Reinforcement Shop Drawings: Placing drawings that detail fabrication, bending, and placement.

D. Material certificates.

1.3 QUALITY ASSURANCE

A. Manufacturer Qualifications: A firm experienced in manufacturing ready-mixed concrete products and that complies with ASTM C 94 requirements for production facilities and equipment.

1. Manufacturer certified according to NRMCA's "Certification of Ready Mixed Concrete

Production Facilities."

CAST-IN-PLACE CONCRETE 03 30 00 - 2

B. ACI Publications: Comply with the following unless modified by requirements in the Contract Documents:

1. ACI 301, "Specification for Structural Concrete," Sections 1 through 5

2. ACI 117, "Specifications for Tolerances for Concrete Construction and Materials."

PART 2 - PRODUCTS

2.1 FORM-FACING MATERIALS

A. Smooth-Formed Finished Concrete: Form-facing panels that will provide continuous, true, and smooth concrete surfaces. Furnish in largest practicable sizes to minimize number of joints.

B. Rough-Formed Finished Concrete: Plywood, lumber, metal, or another approved material.

Provide lumber dressed on at least two edges and one side for tight fit.

2.2 STEEL REINFORCEMENT

A. Recycled Content of Steel Products: Postconsumer recycled content plus one-half of preconsumer recycled content not less than 25 percent.

B. Reinforcing Bars: ASTM A 615, Grade 60, deformed.

C. Deformed-Steel Welded Wire Reinforcement: ASTM A 497, flat sheet.

D. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars and welded wire reinforcement in place. Manufacture bar supports from steel wire, plastic, or precast concrete according to CRSI's "Manual of Standard Practice."

2.3 CONCRETE MATERIALS

A. Cementitious Material: Use the following cementitious materials, of the same type, brand, and source, throughout Project:

1. Portland Cement: ASTM C 150, Type II or I/II.

a. Fly Ash: ASTM C 618, Class F.

b. Ground Granulated Blast-Furnace Slag: ASTM C 989, Grade 100 or 120.

B. Normal-Weight Aggregates: ASTM C 33, graded, 3/4-inch nominal maximum coarse-aggregate size.

C. Water: ASTM C 94 and potable.

D. Air-Entraining Admixture: ASTM C 260.

CAST-IN-PLACE CONCRETE 03 30 00 - 3

E. Chemical Admixtures: Provide admixtures certified by manufacturer to be compatible with other admixtures and that will not contribute water-soluble chloride ions exceeding those permitted in hardened concrete. Do not use calcium chloride or admixtures containing calcium chloride.

1. Water-Reducing Admixture: ASTM C 494, Type A.

2. Retarding Admixture: ASTM C 494, Type B.

3. Water-Reducing and Retarding Admixture: ASTM C 494, Type D.

4. High-Range, Water-Reducing Admixture: ASTM C 494, Type F.

5. High-Range, Water-Reducing and Retarding Admixture: ASTM C 494, Type G.

6. Plasticizing and Retarding Admixture: ASTM C 1017, Type II.

2.4 CURING MATERIALS

A. Evaporation Retarder: Waterborne, monomolecular film forming, manufactured for application to fresh concrete.

B. Absorptive Cover: AASHTO M 182, Class 2, burlap cloth made from jute or kenaf, weighing approximately 9 oz./sq. yd when dry.

C. Moisture-Retaining Cover: ASTM C 171, polyethylene film or white burlap-polyethylene sheet.

D. Water: Potable.

E. Clear, Waterborne, Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B, dissipating.

2.5 RELATED MATERIALS

A. Expansion- and Isolation-Joint-Filler Strips: ASTM D 1751, asphalt-saturated cellulosic fiber or ASTM D 1752, cork or self-expanding cork.

2.6 CONCRETE MIXTURES

A. Prepare design mixtures for each type and strength of concrete, proportioned on the basis of laboratory trial mixture or field test data, or both, according to ACI 301.

B. Cementitious Materials: Use fly ash, pozzolan, ground granulated blast-furnace slag, and silica fume as needed to reduce the total amount of Portland cement, which would otherwise be used, by not less than 20 percent.

C. Proportion normal-weight concrete mixture as follows:

1. Minimum Compressive Strength: As indicated.

2. Maximum Water-Cementitious Materials Ratio: 0.45.

CAST-IN-PLACE CONCRETE 03 30 00 - 4

3. Slump Limit: 5 inches for concrete with verified slump of 2 to 4 inches before adding high-range water-reducing admixture or plasticizing admixture, plus or minus 1inch.

4. Air Content: 6 percent, plus or minus 1.5 percent at point of delivery for 3/4-inch nominal maximum aggregate size.

2.7 WATERSTOPS

A. Self-Expanding Butyl Strip Waterstops: Manufactured rectangular or trapezoidal strip, butyl rubber with sodium bentonite or other hydrophilic polymers, for adhesive bonding to concrete, 3/4 by 1 inch.

2.8 FABRICATING REINFORCEMENT

A. Fabricate steel reinforcement according to CRSI's "Manual of Standard Practice."

2.9 CONCRETE MIXING

A. Ready-Mixed Concrete: Measure, batch, mix, and deliver concrete according to ASTM C 94, and furnish batch ticket information.

1. When air temperature is between 85 and 90 deg F, reduce mixing and delivery time from 1-

1/2 hours to 75 minutes; when air temperature is above 90 deg F, reduce mixing and delivery time to 60 minutes.

3.1 FORMWORK

A. Design, erect, shore, brace, and maintain formwork according to ACI 301 to support vertical, lateral, static, and dynamic loads, and construction loads that might be applied, until structure can support such loads.

B. Construct formwork so concrete members and structures are of size, shape, alignment, elevation, and position indicated, within tolerance limits of ACI 117.

3.2 STEEL REINFORCEMENT

A. General: Comply with CRSI's "Manual of Standard Practice" for placing reinforcement.

3.3 CONCRETE PLACEMENT

A. Before placing concrete, verify that installation of formwork and reinforcement is complete and that required inspections have been performed.

CAST-IN-PLACE CONCRETE 03 30 00 - 5

B. Deposit concrete continuously in one layer or in horizontal layers of such thickness that no new concrete will be placed on concrete that has hardened enough to cause seams or planes of weakness. If a section cannot be placed continuously, provide construction joints as indicated.

Deposit concrete to avoid segregation.

1. Consolidate placed concrete with mechanical vibrating equipment according to ACI 301.

c. Cold-Weather Placement: Comply with ACI 306.1.

D. Hot-Weather Placement: Comply with ACI 301.

3.4 FINISHING FORMED SURFACES

A. Rough-Formed Finish: As-cast concrete texture imparted by form-facing material with tie holes and defects repaired and patched. Remove fins and other projections that exceed specified limits on formed-surface irregularities.

1. Apply to concrete surfaces below finished grade.

B. Smooth-Formed Finish: As-cast concrete texture imparted by form-facing material, arranged in an orderly and symmetrical manner with a minimum of seams. Repair and patch tie holes and defects. Remove fins and other projections that exceed specified limits on formed-surface irregularities.

1. Apply to concrete surfaces above finished grade.

3.5 CONCRETE PROTECTING AND CURING

A. General: Protect freshly placed concrete from premature drying and excessive cold or hot temperatures. Comply with ACI 306.1 for cold-weather protection and ACI 301 for hot- weather protection during curing.

B. Evaporation Retarder: Apply evaporation retarder to unformed concrete surfaces if hot, dry, or windy conditions cause moisture loss approaching 0.2 lb/sq. ft. x h before and during finishing operations. Apply according to manufacturer's written instructions after placing, screeding, and bull floating or darbying concrete, but before float finishing.

C. Cure concrete according to ACI 308.1, by one or a combination of the following methods:

1. Moisture Curing: Keep surfaces continuously moist for not less than seven days.

2. Moisture-Retaining-Cover Curing: Cover concrete surfaces with moisture-retaining cover for curing concrete, placed in widest practicable width, with sides and ends lapped at least 12 inches, and sealed by waterproof tape or adhesive. Cure for not less than seven days.

Immediately repair any holes or tears during curing period using cover material and waterproof tape.

3. Curing Compound: Apply uniformly in continuous operation by power spray or roller according to manufacturer's written instructions. Recoat areas subjected to heavy rainfall

CAST-IN-PLACE CONCRETE 03 30 00 - 6

within three hours after initial application. Maintain continuity of coating and repair damage during curing period.

a. After curing period has elapsed, remove curing compound without damaging concrete surfaces by method recommended by curing compound manufacturer.

4. Curing and Sealing Compound: Apply uniformly to floors and slabs indicated in a continuous operation by power spray or roller according to manufacturer's written instructions. Recoat areas subjected to heavy rainfall within three hours after initial application. Repeat process 24 hours later and apply a second coat. Maintain continuity of coating and repair damage during curing period.

3.6 CONCRETE SURFACE REPAIRS

A. Defective Concrete: Repair and patch defective areas when approved by COR. Remove and replace concrete that cannot be repaired and patched to COR's approval.

3.7 FIELD QUALITY CONTROL

A. Testing and Inspecting: If FAA deems necessary, FAA shall engage a qualified independent testing and inspecting agency to perform field tests and inspections and prepare test reports.

1. Testing Services: Tests shall be performed according to ACI 301.

END OF SECTION 03 30 00

COMMON WORK RESULTS FOR HVAC 23 05 00- 1

SECTION 23 05 00 - COMMON WORK RESULTS FOR HVAC

PART 1- GENERAL

A. This Section includes the following:

1. Piping materials and installation instructions common to most piping systems.

2. Transition fittings.

3. Dielectric fittings.

4. Mechanical sleeve seals.

5. Sleeves.

6. Escutcheons.

7. Grout.

8. Hot Tapping, Line Stopping and Bypasses.

9. Drip Pans.

10. Mechanical Demolition.

11. Equipment installation requirements common to equipment sections.

12. Painting and finishing.

13. Concrete bases.

14. Supports and anchorages.

15. For grounding of mechanical materials, see electrical sections.

16. Temporary HVAC and Local Ventilation.

1.2 DEFINITIONS

A. Finished Spaces: Spaces other than mechanical and electrical equipment rooms, furred spaces, pipe and duct chases, unheated spaces immediately below roof, spaces above ceilings, unexcavated spaces, crawlspaces, and tunnels.

B. Exposed, Interior Installations: Exposed to view indoors. Examples include finished occupied spaces, above drop ceilings, below raised access floors, attics and crawl spaces containing mechanical equipment that require access/maintenance, and mechanical equipment rooms.

C. Exposed, Exterior Installations: Exposed to view outdoors or subject to outdoor ambient temperatures and weather conditions. Examples include rooftop and cooling tower yard locations and within unheated shelters in areas exposed to building occupant contact.

D. Concealed, Interior Installations: Concealed from view and protected from physical contact by building occupants. Examples include above inaccessible hard ceilings and within inaccessible chases.

E. Concealed, Exterior Installations: Concealed from view and protected from weather conditions and physical contact by building occupants but subject to outdoor ambient temperatures.

Examples include installations within unheated shelters.

COMMON WORK RESULTS FOR HVAC 23 05 00- 2

F. The following are industry abbreviations for plastic materials:

1. ABS: Acrylonitrile-butadiene-styrene plastic.

2. CPVC: Chlorinated polyvinyl chloride plastic.

3. PE: Polyethylene plastic.

4. PVC: Polyvinyl chloride plastic.

G. The following are industry abbreviations for rubber materials:

1. EPDM: Ethylene-propylene-diene terpolymer rubber.

2. NBR: Acrylonitrile-butadiene rubber.

1.3 SUBMITTALS

A. Product Data: For the following:

1. Piping Materials.

2. Transition fittings.

3. Dielectric fittings.

4. Mechanical sleeve seals.

5. Sleeves.

6. Escutcheons.

7. Grout.

8. Hot Tapping, Line Stopping and Bypasses.

9. Drip pans.

10. Mechanical Installation - Rigging.

11. Painting and Finishing.

12. Concrete Bases.

13. Supports and Anchorages.

14. Temporary HVAC and Local Ventilation Plan and Schedule.

B. Prepare coordination drawings to a 1/4-inch scale. Detail major elements, components, and systems of mechanical equipment and materials in relationship with other systems, installations, and building components. Show space requirements for installation and access. Show where sequence and coordination of installations are important to the efficient flow of the Work. Show proposed locations of piping, ductwork, equipment, and materials. Include the following:

1. Planned piping layout, including valve and specialty locations and valve stem movement.

2. Planned duct systems layout, including elbow radii and duct accessories.

3. Clearances for installing and maintaining insulation.

4. Clearances for servicing and maintaining equipment include space for equipment disassembly required for periodic maintenance.

5. Equipment service connections and support details.

6. Exterior wall, floor, and foundation penetrations.

7. Fire-rated wall and floor penetrations.

8. Sizes and location of required concrete pads and bases.

9. Access panel and access door locations.

10. Scheduling, sequencing, movement, and positioning of large equipment into the building during construction. Including written rigging plan with schedule.

COMMON WORK RESULTS FOR HVAC 23 05 00- 3

11. Floor plans, elevations, and details to indicate penetrations in floors, walls, and ceilings and their relationship to other penetrations and installations.

12. Reflected ceiling plans to coordinate and integrate installations, air outlets and inlets, light fixtures, communication systems components, sprinklers, and other ceiling-mounted items.

13. Drawings detailing fabrication and installation for metal supports and anchorage for mechanical materials and equipment. Supports and anchorage shall include vibration isolation and seismic bracing per Division 23 Section "Vibration and Seismic Control for

HVAC."

C. Welder certificates signed by Contractor certifying that welders comply with requirements specified below.

D. Rigging certificates provided by Contractor certifying that rigging operations are certified to handle specific equipment.

E. Material Safety Data Sheets (MSDS): Submit MSDS for adhesives, paints, solvents, fireproofing, sealants and any other product which may cause acute or chronic health or safety effects to facility occupants.

F. Ventilation Plan: Submit ventilation plan which defines how temporary local ventilation will be provided. The ventilation plan must be approved by COR prior to start of work.

G. Prepare and distribute operations and maintenance data as specified in Division 1 Section, "Operation and Maintenance Manual Data."

1.4 QUALITY ASSURANCE

A. Steel Support Welding: Qualify processes and operators according to AWS Dl.1, "Structural Welding Code--Steel."

B. Steel Pipe Welding: Qualify processes and operators according to ASME Boiler and Pressure

Vessel Code: Section IX, "Welding and Brazing Qualifications."

1. Comply with provisions in ASME B31, "Building Services Piping."

2. Certify that each welder has passed AWS qualification tests for welding processes involved and that certification is current.

C. Electrical Characteristics for HVAC Equipment: Equipment of higher electrical characteristics may be furnished provided such proposed equipment is approved in writing and connecting electrical services, circuit breakers, and conduit sizes are appropriately modified. If larger equipment is approved, no additional costs shall be approved for these increases. If minimum energy ratings or efficiencies are specified, equipment shall comply with requirements.

COMMON WORK RESULTS FOR HVAC 23 05 00- 4

1.5 DELIVERY, STORAGE, AND HANDLING

A. Deliver pipes and tubes with factory-applied end caps. Maintain end caps through shipping, storage, and handling to prevent pipe end damage and to prevent entrance of dirt, debris, and moisture.

B. Protect stored pipes and tubes from moisture and dirt. Elevate above grade. When stored inside, do not exceed structural capacity of the floor.

C. Protect flanges, fittings, and piping specialties from moisture and dirt.

D. Provide covered shelters for storage of all mechanical equipment. Cover all equipment with polyethylene covering.

E. Rigging Company shall provide certificate(s) for handling equipment movement for each specific piece of equipment and rigging technique.

1.6 COORDINATION

A. Arrange for pipe spaces, chases, slots, and openings in building structure during progress of construction, to allow for HVAC installations.

B. Coordinate installation of required supporting devices and set sleeves in poured-in-place concrete and other structural components as they are constructed.

C. Coordinate requirements for access panels and doors for HVAC items requiring access that are concealed behind finished surfaces.

D. Coordinate installation, startup, testing and balancing of equipment with commissioning work.

Refer to Division 1 Section, "General Commissioning Requirements."

E. Provide written rigging plan and make available onsite.

2.1 MANUFACTURERS

A. In other Part 2 articles where subparagraph titles below introduce lists, the following requirements apply for product selection:

1. Known Acceptable Source: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the manufacturers specified.

COMMON WORK RESULTS FOR HVAC 23 05 00- 5

2.2 PIPE, TUBE, AND FITTINGS

A. Refer to individual Divisions 23 Piping Sections for pipe, tube, and fitting materials and joining methods.

B. Pipe Threads: ASME Bl.20.1 for factory-threaded pipe and pipe fittings.

2.3 JOINING MATERIALS

A. Refer to individual Divisions 23 Piping Secti ns for special joining materials not listed below.

B. Pipe-Flange Gasket Materials: Suitable for chemical and thermal conditions of piping system contents.

1. ASME B16.21, nonmetallic, flat, asbestos-free, 1/8-inch maximum thickness unless thickness or specific material is indicated.

a. Full-Face Type: For flat-face, Class 125, cast-iron and cast-bronze flanges.

2. AWWA CllO, rubber, flat face, 1/8 inch thick, unless otherwise indicated; and full-face or ring type, unless otherwise indicated.

C. Flange Bolts and Nuts: ASME Bl8.2.1, carbon steel, unless otherwise indicated.

D. Solder Filler Metals: ASTM B 32, lead-free alloys. Include water-flushable flux according to

ASTM B 813.

E. Brazing Filler Metals: AWS A5.8, BCuP Series, copper-phosphorus alloys for general-duty brazing, unless otherwise indicated; and AWS A5.8, BAgl, silver alloy for refrigerant piping, unless otherwise indicated.

F. Welding Filler Metals: Comply with AWS Dl0.12 for welding materials appropriate for wall thickness and chemical analysis of steel pipe being welded.

2.4 TRANSITION FITTINGS

A. AWWA Transition Couplings: Same size as, and with pressure rating at least equal to and with ends compatible with, piping to be joined.

1. Known Acceptable Source:

a. Cascade Waterworks Mfg. Co.

b. Dresser Industries, Inc.; DMD Div.

c. Ford Meter Box Company, Incorporated (The); Pipe Products Div.

d. JCM Industries.

e. Smith-Blair, Inc.

f. Viking Johns

COMMON WORK RESULTS FOR HVAC 23 05 00- 6

2. Underground Piping (NPS 2) and Larger: AWWA C219, metal sleeve-type coupling.

3. Aboveground Pressure Piping: Pipe fitting.

2.5 DIELECTRIC FITTINGS

A. Description: Combination fitting of copper alloy and ferrous materials with threaded, solder-joint, plain, or weld-neck end connections that match piping system materials.

B. Insulating Material: Suitable for system fluid, pressure, and temperature.

C. Dielectric Unions: Factory-fabricated, union assembly, for 250-psig minimum working pressure at 180 deg F.

a. Capitol Manufacturing Co.

b. Central Plastics Company.

c. Eclipse, Inc.

d. Epco Sales, Inc.

e. Hart Industries, International, Inc.

f. Watts Industries, Inc.; Water Products Div.

g. Zurn Industries, Inc.; Wilkins Div.

D. Dielectric Flanges: Factory-fabricated, companion-flange assembly, for 150- or 300-psig minimum working pressure as required to suit system pressures.

a. Capitol Manufacturing Co.

b. Central Plastics Company.

c. Epco Sales, Inc.

d. Watts Industries, Inc.; Water Products Div.

E. Dielectric-Flange Kits: Companion-flange assembly for field…