Collin_Co._Courthouse_Chilled_Water_Replacement_-_Specifications.pdf

COLLIN COUNTY

Courthouse Chilled Water Replacement

March 2024

MD Engineering, LLP Texas

Registered Engineering Firm F-7489

MDE PROJECT NO. 221531 MARCH 2024

TABLE OF CONTENTS

23 00 00 - 1

DIVISION 23 – MECHANICAL

23 00 10 MECHANICAL SUBMITTAL PROCESS

23 05 00 COMMON WORK RESULTS FOR HVAC

23 05 53 IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

23 21 13 HYDRONIC PIPING

23 07 00 HVAC INSULATION

DRAWINGS

M0.0 LEGEND AND GENERAL NOTES – MECHANICAL

MD1.0 DEMO SITE PLAN – MECHANICAL

M0.1 TEMP CHILLED WATER CONNECTORS – MECHANICAL

M1.0 SITE PLAN – MECHANICAL

M1.1 OVERALL PLAN – MECHANICAL

M2.1 ENLARGED PLAN – MECHANICAL

M3.1 PHOTOS – MECHANICAL

M4.1 PHOTOS – MECHANICAL

MDE PROJECT NO. 221531 MARCH 2024

23 00 00 - 2

THIS PAGE INTENTIONALLY LEFT BLANK

MDE PROJECT NO. 221531

SUBMITTAL PROCESS

23 00 10 - 1

SECTION 23 00 10 – MECHANICAL SUBMITTAL PROCESS

PART 1 - GENERAL

1.1 SUBMITTALS

A. Comply with all submittal provisions of Division 1.

B. Submit electronic copies of the submittal to the prime consultant (i.e. architect) in order to process and track the submittals properly in accordance with Division 1 and 23 submittal requirements. Architects and consultants are to submit all submittals and RFI’s to the mechanical engineer electronically. Send to “mdengca@md-eng.com”. Submittals shall be labeled by their project specification section or CSI specification section if not listed in project specifications.

C. Contractor is responsible to separate submittals per specification section. Unseparated submittals are subject to rejection without review.

D. Allow a minimum of ten (10) working days for the review of submittals and each re-submittal.

E. Submittals that have been reviewed and marked as REJECTED (REJ) or REVISE & RESUBMIT (RES) should be resubmitted within 10 days to be reviewed again by engineer.

F. Compliance with the Contract documents shall be the sole responsibility of the Contractor.

Items on equipment that are were not accepted by the Architect in writing as an approved equal shall be replaced or revised to comply with the contract documents at the Contractor's expense.

G. Resubmission of rejected submittals shall be limited to one (1) in number. Costs for processing subsequent resubmittals in excess of the first resubmittal, resulting from the Contractor's disregard of Architect/Engineer's primary submittal rejection comments, shall be borne by the Contractor. Costs shall be based on Architect/Engineer's hourly rates as published in their current professional fee schedules and shall also include reimbursable costs for delivery, mailing, and photocopies at direct cost, plus ten percent (10%).

1.2 REQUIRED SPECIFICATIONS (PROJECT SPECIFIC)

A. The chart below are the submittals required for the project.

See required specifications on next page

MARCH 2024

SUBMITTAL PROCESS

23 00 10 - 2

Required

X Submittal Name

Spec

Reference

X Common Work Results for HVAC

-O&M manual, Shop Drawings 23 05 00

X Identification for HVAC Piping & Equipment

-Valve tags, Pipe markers, Equipment plates, 23 05 53

X HVAC Insulation

-Piping Insulation, Duct insulation, Adhesives -Sealants, Covers, Aluminum UV covers.

23 07 00

X Hydronic Piping

-Copper/Steel/Plastic pipe & fittings

-Joining materials; Valves & Specialties

23 21 13

END OF SECTION

COMMON WORK RESULTS FOR HVAC

23 05 00 - 1

SECTION 23 05 00 – COMMON WORK RESULTS FOR HVAC

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. The Drawings and General Provisions of the Contract, including General and

Supplementary Conditions and Division 01 Specification Sections, apply to the Work in this Section.

1.2 DESCRIPTION

A. The General Requirements for Mechanical Work are intended to be complementary to the

General Requirements of the Construction Contract.

B. Work Included: Provide complete mechanical systems where shown on the drawings, as specified herein, and as needed for a complete and proper installation including, but not necessarily limited to the following summary of work:

1. Furnish and install a complete chilled water piping system as shown on drawings and described herein.

1.3 GENERAL REQUIREMENTS

A. Unless otherwise specified, materials are to be new and of current U.S. manufacture, free from defects and of the best quality of their respective kinds.

B. Equipment and/or materials damaged in shipment or handling, or otherwise damaged before installation, shall be replaced with new equipment and/or materials. Damaged equipment and/or materials shall not be repaired at the jobsite.

C. Furnishing of the proper equipment and/or materials and to see that it is installed as recommended by the manufacturer is entirely the responsibility of the Contractor. If required for proper installation, the Contractor shall obtain advice and supervisory assistance from a representative of the specific manufacturer of the equipment being installed.

D. Materials and adhesives to conform to Federal Standard Flame-Spread Properties, Inc., with composite fire and smoke hazard ratings, maximum 25 for flame spread and 50 for smoke developed. Adhesives to be waterproof.

E. The Contractor shall promptly notify the Architect in writing of any conflict between the requirements of the Contract Documents and the manufacturer's directions and shall obtain the Engineer instructions before proceeding with the work. Should the Contractor perform any such work that does not comply with the manufacturer's directions or such instructions from the Engineer, he shall bear all costs arising in connection with the deficiencies.

F. Belts, pulleys, chains, gears, couplings, projecting screws, keys or other rotating parts which are located so that a person can come in close proximity thereto shall be fully enclosed properly provided with a guard.

1.4 QUALITY ASSURANCE AND APPLICABLE STANDARDS

A. Use adequate numbers of skilled workers that are thoroughly trained and experienced in the necessary crafts and are completely familiar with the specified requirements and the methods needed for proper performance of the work of this Section.

B. Provide all equipment, materials, labor, supervision, and services necessary for or incidental to the installation of a complete and operating Chilled Water system as indicated on the drawings and as specified.

C. The Contractor shall be responsible for fitting his material and apparatus into the building and shall carefully lay out his work at the site to conform to the structural conditions, to avoid all obstructions, to conform to the details of the installation and thereby to provide an integrated satisfactory operating installation.

23 05 00 - 2

D. Without additional cost to the Owner, provide such other labor and materials as are required to complete the work of this Section in accordance with the requirements of governmental agencies having jurisdiction, regardless of whether such materials and associated labor are called for elsewhere in these Contract Documents.

E. Codes: Perform all work in accordance with the latest edition of the following codes:

1. State and city building, fire, plumbing and mechanical codes.

2. International Fire Code

3. International Mechanical Code

4. International Plumbing Code

5. International Electrical Code

6. Energy Conservation Code

7. National Fire Protection Association (NFPA)

8. American with Disabilities Act (ADA)

9. ICC/ANSI A117.1 Accessible and Useable Buildings and Facilities.

10. All authorities having jurisdiction.

11. Architectural code review drawing.

F. The Contractor shall comply in every respect with all requirements of National Fire Protection Association, local Fire Department regulations and utility company requirements. In no case does this relieve the Contractor of the responsibility of complying with these Specifications and Drawings where specified conditions are of higher quality than the requirements of the above-specified authorities. Where requirements of the Specifications and Drawings are more lenient than the requirements of the above authorities having jurisdiction, the Contractor shall make installations in compliance with the requirements of the above authorities with no extra compensation.

G. Where conflicts occur between drawings, specifications or code requirements, the most stringent requirement shall take precedence.

H. Standards: The specifications and standards of the following organizations are by reference made a part of these specifications. All work, unless otherwise indicated, shall comply with the requirements and recommendations wherever applicable:

1. American National Standards Institute (ANSI).

2. American Society for Testing and Materials (ASTM).

3. American Society of Mechanical Engineers (ASME).

4. American Society of Refrigeration, Heating and Air Conditioning Engineers

(ASHRAE).

5. Electrical Testing Laboratories (ETL).

6. National Bureau of Standards (NBS).

7. National Electrical Manufacturer's Association (NEMA).

8. National Fire Protection Association (NFPA).

9. Underwriters Laboratories, Inc. (UL).

I. Welding Qualifications: Qualify procedures and personnel according to the following:

1. AWS D1.1/D1.1M, "Structural Welding Code - Steel."

2. ASME Boiler and Pressure Vessel Code: Section IX.

1.5 REQUIREMENTS OF REGULATORY AGENCIES

A. The requirements and recommendations of the latest edition of the Occupational Safety and Health Administration (OSHA) Act are by reference made a part of these specifications. All work shall comply with the requirements and recommendations wherever applicable.

1.6 SUBMITTALS

A. Comply with all submittal provisions of Division 1.

23 05 00 - 3

B. Submit electronic copies of the submittal to the prime consultant (i.e. architect) in order to process and track the submittals properly in accordance with Division 1 and 23 submittal requirements. Architects and consultants are to submit all submittals and RFI’s to the mechanical engineer electronically. Send to “mdengca@md-eng.com”. Submittals shall be labeled by their project specification section or CSI specification section if not listed in project specifications

C. Product Data: Submit the following:

1. Materials list of items proposed to be provided under Division 23.

2. Manufacturer's specifications and other data needed to prove compliance with the specified requirements. The term "Compliance" is understood to mean that the Contractor certifies that the submitted equipment will meet or exceed the contract document requirements. Items that do not clearly meet this definition should be identified and explained as required in the following paragraph.

3. Identify the difference between the specified item or function and the proposed.

Explain with enough detail so that the Engineer/Owner can easily determine that the item complies with the functional intent. List any disadvantages or advantages of the proposed item versus the specified item. Submit technical data sheets and/or pictures and diagrams to support and clarify. Organize in a clear and concise format. All substitutions shall be approved in writing by Architect. The Architect’s decision shall be final.

4. Allow a minimum of ten (10) working days for the review of submittals and each re-submittal.

5. Submittals that have been reviewed and marked as REJECTED (REJ) or MAKE CORRECTIONS NOTED (MCN) should be resubmitted within 10 days to be reviewed again by engineer.

6. Compliance with the Contract documents shall be the sole responsibility of the Contractor. Items on equipment that are were not accepted by the Architect in writing as an approved equal shall be replaced or revised to comply with the contract documents at the Contractor's expense.

7. Manufacturer's recommended installation procedures which, when reviewed by the Architect, shall become the basis for accepting or rejecting actual installation procedures used on the work.

8. Sign the submittal as an indication of compliance with the contract documents.

Any deviations from the contract documents shall be indicated on the submittal prior to signing. Any deviations not indicated shall be cause for rejection and removal of the non-complying equipment at the Contractor’s expense.

D. Submittals required of materials and equipment under this section include the following:

1. Piping and Accessories Materials:

a. Clearly marked up manufacturer's data showing compliance with the specifications for: (Include model numbers and highlight products)

1) Piping material proposed for each system.

2) Valves, cocks, and specialties.

3) Flexible connectors for piping.

4) Flanges.

b. l/8" scale (minimum) piping shop drawings showing coordinated piping routing and arrangements with all equipment, accessories and system expansion and contraction compensation methods.

2. Mechanical Identification Materials:

a. Clearly marked-up product literature or samples showing compliance with specified materials for: (Include model numbers and highlight products)

1) Valve tagging.

2) Pipe marking.

23 05 00 - 4

3. Insulation:

a. Manufacturer's certified data on thermal performance.

b. Details, when required, of methods to be used in providing for unusual piping expansion and contraction.

c. Manufacturer's data on any alternate insulation material of reduced thickness, including pre-insulated pipe.

d. Manufacturer's data on all jacketing materials, sealants and fasteners.

4. Record Documents: Reference the requirements detailed in this section.

5. Operation and Maintenance Data: Reference the requirements detailed in this section.

E. Resubmission of rejected submittals shall be limited to one (1) in number. Costs for processing subsequent resubmittals in excess of the first resubmittal, resulting from the Contractor's disregard of Architect/Engineer's primary submittal rejection comments, shall be borne by the Contractor. Costs shall be based on Architect/Engineer's hourly rates as published in their current professional fee schedules and shall also include reimbursable costs for delivery, mailing, and photocopies at direct cost plus ten percent (10%).

1.7 SUBSTITUTIONS

A. Comply with all provisions of Division 1.

B. The use of manufacturers' names and catalog numbers followed by the phrase "or equal" is generally used to establish a standard of quality and utility for the specified items and to provide a dimensional reference for construction documents that are drawn to scale.

C. Submittals for "equal" items shall, where applicable, include the following data that are not necessarily required for specified items:

1. Performance characteristics.

2. Materials.

3. Finish.

4. Certification of conformance with specified codes and standards.

5. Manufacturer's specifications and other data needed to prove compliance with the specified requirements. The term "Compliance" is understood to mean that the Contractor certifies that the submitted equipment will meet or exceed the contract document requirements. Items that do not clearly meet this definition should be identified and explained as required in Paragraph 6 below.

6. Identify the difference between the specified item or function and the proposed.

Explain with enough detail so that the Architect/ Engineer/Owner can easily determine that the item complies with the functional intent. List any disadvantages or advantages of the proposed item versus the specified item. Submit technical data sheets and/or pictures and diagrams to support and clarify. Include shop drawings for all piping and pumpsper Paragraph 1.5 Submittals. Organize in a clear and concise format

D. Submittals of "equal" components or systems may be rejected if:

1. The material or equipment would necessitate the alteration of any portion of the mechanical, electrical, architectural or structural design.

2. Dimensions vary from the specified material or equipment in such a manner that accessibility or clearances are impaired or the work of other trades is adversely affected.

E. Proposed substitutions for materials or equipment must be submitted ten (10) days prior to final bid date for consideration as approved equals. Otherwise, such substitutions will not be permitted. Proposals for substitutions shall be made only by the prime bidders.

Manufacturers, distributors, and sub-contractors shall not make proposals to the Architect for substitutions.

F. All equipment installed on this project shall have local representation, local factory authorized service, and a local stock of repair parts

23 05 00 - 5

G. No substitution shall be made unless authorized in writing by the Architect. Should a substitution be accepted, and should the substitute material prove defective or otherwise unsatisfactory for the service intended, and within the guarantee period, the Contractor shall replace this material or equipment with material or equipment specified, at his own expense, and to the satisfaction of the Architect.

H. Contractors submitting bids on substitute materials and equipment must also provide a written performance guarantee certifying that the substitute materials and equipment will produce the specified effects and meet the approval of the Architect.

1.8 ORDINANCES, PERMITS, METERS, UTILITIES AND ROYALTIES

A. Procure all permits and licenses necessary for completion of this project and pay all lawful fees required and necessary pursuant in obtaining said permits and licenses. All required certificates of approvals and inspections by local governing and regulating authorities shall be obtained and paid for by the Contractor.

B. Pay any royalty payments required or fees for the use of patented equipment or systems.

Defend all law suits or claims for infringement of any patent rights and shall hold the Owner and/or Architect/Engineer harmless from loss as a result of said suits or claims.

1.9 COMPATIBILITY OF EQUIPMENT

A. Assume full responsibility for satisfactory operation of all component parts of the mechanical systems to assure compatibility of all equipment and performance of the integrated systems in accordance with the requirements of the specifications. Should the Contractor consider any part of the specifications or drawings as rendering his acceptance of such responsibility impossible, prohibitive, or restrictive, he shall notify the Engineer before submitting his bid, and the bid shall be accompanied by a written statement of any objections or exceptions to the specifications and drawings.

B. All equipment shall be installed in a manner to permit access to all surfaces. All valves, motors, drives, filters, and other accessory items shall be installed in a position to allow removal for service without disassembly of another part.

1.10 CONSTRUCTION REQUIREMENTS

A. The drawings show the arrangements of work. Should project conditions necessitate rearrangement, or if the materials or equipment can be installed to a better advantage in a different manner, the Contractor shall, before proceeding with the work, prepare and submit five copies of Drawings of the proposed arrangement for the Architect’s review. Allow a minimum of ten (10) working days for review.

B. Should the Contractor propose to install equipment requiring space conditions other than those shown, or rearrange the equipment, he shall assume responsibility for the rearrangement of the space and shall have the Architect review the change before proceeding with the work. The request for such changes shall be accompanied by shop drawings of the space in question. Identify monetary credits proposed or other benefits of the change. Allow a minimum of ten (10) working days for review.

C. The Contractor shall be responsible for the proper location and size of all slots, holes or openings in the building structure pertaining to his work and for the correct location of pipe sleeves.

1.11 CONNECTIONS FOR OTHERS

A. The Mechanical Contractor shall rough in for and make all connections to all equipment, machinery, etc., provided by others in accordance with detailed roughing-in Drawings provided by the equipment suppliers, by actual measurements of the equipment connections, or as detailed

B. Contractor shall make all final connections and shall provide all required pipe, fittings, valves, traps, etc.

C. Provide all air gap fittings required, using materials hereinbefore specified. In each service line connected to an item of equipment or piece of machinery, provide a shutoff valve. On each drain not provided with a trap, provide a suitable trap.

23 05 00 - 6

D. All pipe fittings, valves, traps, etc., exposed in finished areas and connected to chrome plated lines provided by others shall be chrome plated to match.

1.12 PROJECT RECORD DOCUMENTS

A. Provide the record documents associated with the work of Division 23 in strict accordance with the provisions of these specifications.

B. Throughout progress of the Division 23 Work, maintain an accurate record of changes in the Contract Documents that apply to work of Division 23. Changes shall include all addendums issued during bidding. Maintain an accurate record of the location of mechanical service lines and outlets and all outside utilities.

C. Delegate the responsibility for maintenance of Record Documents to one person on the Contractor's staff as approved by the Architect.

D. Accuracy of Records

1. Thoroughly coordinate changes within the Record Documents, making adequate and proper entries on each page of Specifications and each sheet of drawings and other documents where such entry is required to show the change properly. Match the symbology and format of the base documents.

2. Accuracy of records shall be such that a future verification of items shown in the Contract Documents may rely reasonably on information obtained from the approved Project Record Documents.

E. Maintain the job set of Record Documents completely protected from deterioration and from loss and damage until completion of the work and transfer of all recorded data to the final Project Record Documents.

F. Making Entries on Drawings

1. Using an erasable colored pencil (not ink or indelible pencil), clearly describe the change by graphic line and note as required.

2. Date all entries.

3. Call attention to the entry by a "cloud" drawn around the area or areas affected.

4. In the event of overlapping changes, use different colors for the overlapping changes.

5. Make entries within 24 hours after receipt of information that the change has occurred.

6. Maintain the base drawing format and use the same symbology.

7. Convert field mark-ups to finished CADD record drawings when required in this section.

G. Conversion of Schematic Layouts

1. In some cases on the drawings, arrangements of piping and similar items are shown schematically and are not intended to portray precise physical layout.

Determine final physical arrangement subject to the Architect's approval. However, design of future modifications of the facility may require accurate information as to the final physical layout of items which are shown only schematically on the drawings.

2. Show on the job set of record drawings, by dimension accurate to within one inch, the centerline of each run of items such as all sleeves and piping, etc., below grade, in walls, or in the concrete slab. A surface mounted device indicates the exact location:

a. Clearly identify the item by accurate note such as "Sanitary Sewer" and the like.

b. Show, by symbol or note, the vertical location of the item "under slab," "in ceiling plenum," "exposed," and the like.

c. Make all identification sufficiently descriptive that it may be related reliably to the specifications.

23 05 00 - 7

H. Final Project Record Documents

1. The purpose of the final Project Record Documents is to provide factual information regarding all aspects of the Work, both concealed and visible, to enable future modification of the Work to proceed without lengthy and expensive site measurement, investigation, and examination.

2. Provide CAD electronic files in .dwg format using AutoCAD software. Engineer will also provide a list of drawing layers and names that shall be maintained.

3. Provide completed record drawings on USB drive and one full size hard copy of each drawing.

4. Refer to Division 1 for additional requirements.

I. Provide front and back covers for each manual, using durable material approved by the

Architect, and clearly identified on or through the cover with at least the following information:

OPERATING AND MAINTENANCE INSTRUCTIONS

OPERATING AND MAINTENANCE MANUAL (Required Layout)

J. Contents: Include at least the following:

1. Neatly typewritten index near the front of the manual, giving immediate information as to location within the manual of all emergency information regarding the installation.

• Title Page o Job Name o Site Address o Include Contact information of prime contractor.

• Table of contents

• Warranty Information.

o Include all contractor warranties

▪ Signed and dated documents

• Permits-Inspections

• Subcontractor list o Include all subcontractors.

▪ Company name, Contact info.

▪ Trade Responsibility.

• Vendor list o Include name and addresses of vendors

▪ Warranty information

▪ Replaceable parts

• Approved submittals o Include all approved product submittals

• Reports/Certificates/Redlines o Engineers Observation Reports o Contractor Start-up Report o As-builts for piping

• O&M Manuals

• Equipment Information.

o Include Model, Serial and location.

• Signed Approval o Page for approval signature of the engineer and approval date.

23 05 00 - 8

2. Complete instructions regarding operation and maintenance of all equipment provided including lubrication, disassembly, and reassembly.

3. Complete nomenclature of all parts of all equipment.

4. Complete nomenclature and part number of all replaceable parts, name and address of nearest vendor, and all other data pertinent to procurement procedures.

5. Copy of all guarantees and warranties issued.

6. Manufacturer's bulletins, drawings, and descriptive data, clearly indicating the precise items included in this installation and deleting, or otherwise clearly indicating, all manufacturers' data with which this installation is not concerned.

7. Such other data as required in other sections of these specifications.

1.13 WARRANTY

A. Contractor shall warranty all piping materials and workmanship for a period of one year after date of substantial completion and replace or repair any faulty equipment or installation at no cost to the Owner for such service during this period, all in accordance with requirements of Division 1.

B. This warranty shall not void specific warranties issued by manufacturers for greater periods of time. Nor shall it void any rights guaranteed to the Owner by law.

C. Warranties shall be in writing in a form satisfactory to the Owner, and shall be delivered to the Owner before final payment is made.

D. Upon completion of the work of Division 23, thoroughly clean all exposed portions of the mechanical installation, removing all traces of soil, labels, grease, oil and other foreign material and using only the type cleaner recommended by the manufacturer of the item being cleaned.

PART 2 - PRODUCTS – NOT USED

PART 3 - EXECUTION

3.1 TESTING AND INSPECTION

A. Provide personnel and equipment, make required tests, and secure required approvals from the Architect and governmental agencies having jurisdiction.

B. Make written notice to the Architect adequately in advance of each of the following stages of construction:

1. When all rough-in is complete, but not covered.

2. As specified in all Division 23 sections.

3. At the completion of the work of Division 23.

C. When material or workmanship is found to not comply with the specified requirements, remove the noncomplying items from the job site and replace them with items complying with the specified requirements at no additional cost to the Owner. This shall be performed within 3 days after receipt of written notice of noncompliance.

3.2 INSTALLATION METHODS

A. Cut pipe accurately to measurements established at the building and install into position without springing or forcing. All open ends of pipes shall be capped or otherwise closed until the systems are closed with final connections.

B. No pipe joints nearer than 12" to a wall, ceiling or floor penetration will be permitted, unless joint is of the welded type.

C. Piping systems shall be made up straight and true and run at proper grades to permit proper flow of the contained material. Piping shall be graded for proper drainage.

23 05 00 - 9

D. Piping shall follow as closely as possible the routes shown on plans, which take into consideration conditions to be met at the site and in the building. Should any unforeseen conditions arise, lines shall be changed or rerouted as required after approval from the Engineer and Owner.

E. All piping shall be installed with due regard to expansion and contraction and so as to prevent excessive strain and stress in the piping and in connections to equipment.

F. All piping shall be clean when it is installed; rust and/or dirt shall be removed.

G. Screw joints shall be made with taper threads, properly cut. Threads shall be cut using graphite and oil applied to the pipe only. When threads are cut on pipes, the ends shall be carefully reamed to remove any burrs. Pipe shall be up-ended and hammered to remove all shavings and foreign material, before installing.

H. For additional installation requirements, refer to individual sections in Division 23.

3.3 CUTTING AND PATCHING

A. Perform cutting and patching associated with the work in strict accordance with the provisions of these Specifications and the following:

1. Coordinate work to minimize cutting and patching work. Cut and patch walls, floors, etc., resulting from work in existing construction or by failure to provide proper openings or recesses in new construction. If cutting and patching is required, it shall be performed by trades specializing in that type work.

2. Perform Architect-approved cutting and demolition by methods which will prevent damage to other portions of the work and provide proper surfaces to receive installation of new work and/or repair.

a. Openings cut through concrete and masonry shall be made with masonry saws and/or core drills and at such locations acceptable to the Architect. Impact-type equipment will not be used except where specifically acceptable to the Architect.

b. Openings in precast concrete slabs or walls for pipes, etc., shall be core drilled to exact size. Oversize the hole to allow for link seals, and to deter pipe corrosion condensation from forming.

c. Where openings are cut through masonry walls, provide and install lintels or other structural supports to protect the remaining masonry. Adequate supports shall be provided during the cutting operation to prevent any damage to the masonry occasioned by the operation. All structural members, supports, etc., shall be of the proper size and shape, and shall be installed in a manner acceptable to the Architect.

d. Openings cut through plaster or drywall shall be cut prior to plaster finish coat or texture coat on drywall. Cutting of the finish coat of plaster or texture coat of drywall will not be permitted unless written approval of the Architect is obtained.

e. Openings shall be restored and/or repaired as required to replace the cut surface to an "as-new" and/or "as original" condition. Refer to the appropriate section of the specifications for the material involved.

3. Perform fitting and adjusting of products to provide finished installation complying with the specified tolerances and finishes.

4. Provide all core drilling of holes. Where sleeves and/or blockouts are required, they shall be cut or provided at locations required. On completion of this work or as work progresses, make all repairs and do all patching required as a result of work under this Contract. All patching shall be performed in a manner that will restore the surrounding work to its original condition to the satisfaction of the Architect.

5. Assume responsibility for the proper size of all sleeves and/or blockouts in the building structure pertaining to the work and for providing the correct location of pipe sleeves and/or blockouts.

6. No cutting, boring or excavating which will weaken the structure will be permitted.

23 05 00 - 10

3.4 EXISTING UTILITIES AND TEMPORARY SERVICES FOR CONSTRUCTION

A. Verify the location and capacity of existing utility services pertaining to work of Division 23.

Relocate existing utilities unearthed by excavation as directed by the utility service companies affected.

1. Temporary Services for Construction

2. Provide temporary services in strict accordance with the provisions of these specifications.

B. Regardless of whether or not the equipment has or has not been operated, the Contractor shall properly clean the equipment, install clean filter media, properly adjust, and complete all deficiency list items before final acceptance by the Owner. The date of acceptance and performance certification will be the same date.

3.5 EXISTING DOCK LEVELER REUSE

A. The contractor shall properly remove the existing Dock Leveler to install later after piping is installed and concrete work at the dock begins. The Leveler shall be installed in the previous location. The contractor shall install leveler per manufacturers installation requirements.

3.6 DEMOLITION

A. The Contractor shall remove all piping, materials and items so indicated on the Drawings or required by the installation of new chilled water system piping.

B. Chilled water lines points at which reuse is to be continued or service is to remain inciated on drawings. Such services shall be sealed, capped, or otherwise tied-off or disconnected in a safe manner acceptable to the Owner. All disconnections or connections into the existing chilled water piping shall be done in such a manner as to result in minimum interruption of services to adjacent occupied areas.

3.7 TEMPORARY CHILLER

A. Chilled water service to the Courthouse must remain in operation by the usage of a temporary 500 ton air cooled chiller package with generator operational throughout the construction period. Chilled water service shall not be interrupted without prior specific approval of the Owner as hereinbefore specified.

3.8 EXCAVATION AND BACKFILLING

A. Perform all excavation and backfilling necessary for the installation of the work. This shall include shoring and pumping in ditches to keep them in dry condition until the work has been installed. All shoring required to protect the excavation and safeguard employees shall be properly performed.

B. Perform excavation and backfilling in strict accordance with the provisions of these specifications including trench safety requirements.

C. All excavations shall be made to the proper depth, with allowances made for floor slabs, forms, beams, etc. Ground under piping shall be well compacted before piping is installed.

D. Backfilling shall be made with selected soil, free from rocks and debris and shall be pneumatically tamped with 6 inch layers to secure a field density ratio of 95 percent as defined by ASTM Designation D698-57T (Proctor Soil Compaction Test).

E. Excavated materials not suitable and not used in the backfill shall be removed from the site.

F. Field check and verify the locations of all underground utilities. Avoid disturbing these as far as possible. In the event existing utilities are damaged, they shall be repaired at no cost to Owner.

G. In a lime stabilized area, the lime stabilization shall be fully restored after the excavation is complete.

H. Replace concrete, curbs, paving and other surface improvements cut during excavation to their original condition.

23 05 00 - 11

3.9 JOBSITE CONDITIONS

A. Examine the areas and conditions under which work of this Section will be performed.

Include required work to correct conditions detrimental to the timely and proper completion of all Division 23 Work. Do not proceed until unsatisfactory conditions are corrected.

B. The Contractor shall at all times take such precautions as may be necessary to properly protect all materials and equipment from damage from the time of delivery until the completion of the work. This shall include the erection of all required temporary shelters and supports to adequately protect any items stored in the open on the site from the weather, the ground and surrounding work; the cribbing of any items above the floor of the construction; and the covering of items in the incomplete building with tarpaulins or other protective covering; the installation of electric heaters in electrical switchgear and similar equipment to prevent moisture damage. Failure on the part of the Contractor to comply with the above will be sufficient cause for the rejection of the items in question.

C. Take particular care not to damage the building structure in performing work. All finished floors, step treads, and finished surfaces shall be covered to prevent any damage by workmen or their tools and equipment during the construction of the building.

D. Equipment and materials shall be protected from rust both before and after installation.

Any equipment or materials found in a rusty condition at the time of final inspection must be cleaned of rust and repainted as specified elsewhere in these Specifications.

3.10 STORAGE AND PROTECTION

A. Contractor shall provide the required protection of equipment and materials from the time of delivery until the completion of the Work. Protect from damage, rust, rain, humidity and dust.

B. Do not receive equipment or materials on the jobsite until adequate space has been provided for storage.

C. Provide adequate supports for protection from the ground and erect required shelters for items stored in the open.

D. Items stored within the building are to be adequately protected and covered with tarpaulins or other protective covering.

E. Protect the building at all times during construction from damage by workmen, their tools and/or equipment. Protect floors, steps, wall, ceilings, doors, windows and other finish surfaces.

F. Equipment and materials found in a rusty condition at completion of the work will be thoroughly cleaned of rust and refinished as required to its original condition.

3.11 PREPARATION AND COORDINATION

A. Perform coordination work in strict accordance with provisions of these specifications and the following:

1. Coordinate as necessary with other trades to assure proper and adequate interface with all work.

2. Although such work is not specifically indicated, furnish and install all supplementary or miscellaneous items, appurtenances and devices incidental to or necessary for a sound, secure and complete installation of the HVAC system.

3. Coordinate accepted equipment changes from those scheduled or specified with other trades affected. Additional compensation to other trades for equipment changes is the responsibility of the Contractor making the change.

23 05 00 - 12

B. The Mechanical, Electrical, Plumbing, and associated Drawings are necessarily diagrammatic by their nature, and are not intended to show every connection in detail or every pipe or conduit in its exact location. These details are subject to the requirements of standards referenced elsewhere in these specifications, and structural and architectural conditions. The Contractor shall carefully investigate structural and finish conditions and shall coordinate the separate trades in order to avoid interference between the various phases of work. Work shall be organized and laid out so that it will be concealed in furred chases and suspended ceilings, etc., in finished portions of the building, unless specifically noted to be exposed. All exposed work shall be installed parallel or perpendicular to the lines of the building unless otherwise noted.

C. When the mechanical, plumbing and electrical Drawings do not give exact details as to the elevation of pipe, conduit and ducts, the Contractor shall physically arrange the systems to fit in the space available at the elevations intended with proper grades for the functioning of the system involved. Piping, exposed conduit and the duct systems are generally intended to be installed true and square to the building construction, and located as high as possible against the structure in a neat and workmanlike manner. The Drawings do not show all required offsets, control lines, pilot lines and other location details. Work shall be concealed in all finished areas.

D. Verify all dimensions and distances. No additional compensation will be allowed because of differences between work shown on the Drawings and actual dimensions and distances at the jobsite.

IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

23 05 53 - 1

SECTION 23 05 53 – IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. The Drawings and General Provisions of the Contract, including General and

Supplementary Conditions and Division 01 Specification Sections, apply to the Work in this Section.

1.2 SCOPE

A. Provide all equipment, materials, labor, supervision, and services necessary for or incidental to the installation of all necessary identification items as indicated on the drawings and as specified.

Work included: Pipe marking with flow direction

B. Submittals: Provide submittals as required in Section 23 00 10. “Submittal Process”.

1.3 QUALITY ASSURANCE

A. Use adequate numbers of skilled workmen who are thoroughly trained and experienced in the necessary crafts and who are completely familiar with the specified requirements and the methods needed for proper performance of the work of this Section.

B. Without additional cost to the Owner, provide such other labor and materials as are required to complete the work of this Section in accordance with the requirements of governmental agencies having jurisdiction, regardless of whether such materials and associated labor are called for elsewhere in these Contract Documents.

C. When requested, provide the Architect with manufacturer's certificate that materials meet or exceed minimum requirements as specified. Marking system shall conform to ASME 13.1, latest edition and OSHA 29 CFR 1910.261 requirements.

PART 2 - PRODUCTS

2.1 PIPE MARKERS

A. Provide pipe markers for pipes that provide 360 degree visibility with ANSI approved color coded background, color of legend in relation to background color, legend letter size, and length of color field. Additionally, direction of flow arrows shall be printed on the same markers, and words shall be repeated and reversed for use with flow in either direction.

1. Each marker shall be formed with a clear acrylic covering suitable for use outdoors.

2. For diameters 3/4" to 6", marker shall be formed in order to snap on and completely surround the pipe. For diameters 6" and larger, provide radius formed markers of same material.

2.2 MANUFACTURERS

A. Provide marking system as manufactured by W. H. Brady Company, Seton, Craftmark, or approved equal.

PART 3 - EXECUTION

3.1 GENERAL

A. Place all markers in such locations that they are easily read by a person without assuming awkward or hazardous positions.

IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

23 05 53 - 2

3.2 PIPE MARKERS

A. Markers shall snap around the pipe, completely surrounding the pipe. Markers shall not require taping or the use of any adhesive material or fasteners to permanently secure them to the pipe. For diameters 6" and larger, secure with stainless steel spring fasteners.

HVAC INSULATION

23 07 00 - 1

SECTION 23 07 00 – HVAC INSULATION

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. The Drawings and General Provisions of the Contract, including General and

Supplementary Conditions and Division 01 Specification Sections, apply to the Work in this Section.

1.2 SUMMARY

A. Provide all equipment, materials, labor, supervision, and services necessary for or incidental to the insulation of the mechanical systems as indicated on the drawings and as specified herein.

B. Factory insulated equipment is excluded from this section of the specifications except that the insulating material characteristics shall equal or exceed those of specified materials for similar service.

C. Work Included:

1. Piping:

a. Chilled water piping – above ground D. Submittals: Provide submittals as required in Section 23 00 10, “Submittal Process”.

1.3 QUALITY ASSURANCE

A. Use adequate numbers of skilled workmen who are thoroughly trained and experienced in the necessary crafts and who are completely familiar with the specified requirements and the methods needed for proper performance of the work of this Section.

B. Without additional cost to the Owner, provide such other labor and materials as are required to complete the work of this Section in accordance with the requirements of governmental agencies having jurisdiction, regardless of whether such materials and associated labor are called for elsewhere in these Contract Documents.

C. When requested, provide the Architect with manufacturer's certificate that materials meet or exceed minimum requirements as specified.

D. Pipe joints or cuts, shall be sealed with manufacturers glue. Any type of duct tape, foil tape, electrical tape or any other product that what the manufacturer supplies will be rejected and all insulation will be removed and replaced at the contractors cost.

E. Splits or exposed piping will not be acceptable. All incorrectly installed insulation will be repaired at contractors cost.

F. Acceptable Manufacturers:

1. Fiberglass Insulation:

a. Knauf Insulation

b. Manson Insulation

c. Owens Corning

d. Johns Manville

e. Certainteed

2. Elastomeric Foam Insulation:

a. Armacell North America

b. Aeroflex USA

c. K-Flex USA

3. Metal Jacket / Fitting Covers:

a. RPR Products, Inc.

b. Ideal Products

c. Johns Manville

d. Shur-Fit Products

4. Mastics, Coatings, Sealants, & Adhesives:

a. Childers Products / H.B. Fuller Construction Products

b. Foster Products / H.B. Fuller Construction Products

23 07 00 - 2

c. Vimasco Corporation

d. Mon-Eco Industries

1.4 GENERAL

A. All materials shall be applied by workmen skilled in this trade.

B. Mechanical fasteners shall be used whenever possible to ensure permanent construction.

C. Materials will be applied only after all surfaces have been tested and cleaned.

D. All material, jacket, coverings, sealers, mastics, and adhesives shall not exceed flame spread rating of 25 and smoke developed of 50 in accordance with ASTM Method E84, UL Standard 723 and NFPA Bulletins 90A and 90B.

E. Insulation shall be vermin resistant.

F. Fiberglass insulation shall not contain formaldehyde, asbestos, lead, mercury, mercury compounds, or poly-brominated diphenyl ether fire retardants.

G. Fiberglass insulation products shall be UL GREENGUARD Gold certified.

H. Fiberglass insulation products shall have a minimum of 50 percent recycled glass content certified and UL Validated.

I. Fiberglass insulation products shall be constructed with 100% formaldehyde-free thermosetting resin binder and bio-soluble glass.

J. Non-compressible insulation material shall be installed at hangers of cold piping to eliminate through metal conductance.

K. Insulation of cold surfaces shall be vapor sealed.

L. Minimum thickness of insulation shall be as listed or energy code as adopted by authority having jurisdiction. However, sufficient insulation shall be provided to eliminate condensation on the cold surfaces and to maintain a maximum exterior insulation surface temperature no greater than the current OSHA Standard for hot surfaces.

1.5 REFERENCES

A. North American Commercial and Industrial Insulation Standards. 9th Edition or Latest

Edition. Published by Midwest Insulation Contractors Association (MICA).

B. NAIMA CI228 Guide to Insulating Chilled Water Piping Systems with Mineral Fiber Pipe

Insulation 33°F to 60°F (0.5°C to 15.6°C) First Edition, 2015. Published by North American Insulation Manufacturers Association (NAIMA).

C. NFPA 90A Standard for the Installation of Air-Conditioning and Ventilating Systems D. NFPA 90B Standard for the Installation of Warm Air Heating and Air-Conditioning Systems E. UL 723 Standard for Test for Surface Burning Characteristics of Building Materials F. ASTM E84 Standard Test Method for Surface Burning Characteristics of Building Materials G. ASTM E96 Standard Test Methods for Water Vapor Transmission of Materials H. ASTM E119 Standard Test Method for Fire Tests of Building Construction and Materials.

I. ASTM C612 Standard Specification for Mineral Fiber Block and Board Thermal Insulation J. ASTM C 1104/C - 1104M Test Method for Determining the Water Vapor Sorption of

Unfaced Mineral Fiber Insulation

PART 2 - PRODUCTS

2.1 PIPING SYSTEMS

A. Pipe Insulation for HVAC System:

1. Above Ground-Use Fiberglass, Preformed, Pipe Insulation: Fiberglass bonded with a 100% formaldehyde-free, thermosetting resin binder. Type I, 850 deg. F or Type IV 1000 deg. F. UL/ULC Classified per UL 723. Comply with ASTM C 585, ASTM C 411, ASTM C 795, and ASTM C 547, Type I, and Type IV, equipped with factory-applied ASJ+SSL+ or ASJ-SSL vapor retarder.

a. Basis-of-Design: Knauf Earthwool® 1000º Fiberglass Pipe Insulation with

ASJ+SSL+ vapor retarder.

b. Manson Insulation Alley-K® Fiberglass Pipe Insulation with ASJ-SSL vapor retarder.

23 07 00 - 3

c. Johns Manville preformed one-piece Fiberglass Pipe Insulation with ASJ- SSL vapor retarder.

d. ASJ+ SSL+ Vapor Retarder – factory-applied and composed of an aluminum foil layer, reinforced with glass scrim, bonded to a layer of White Kraft paper, interleaving with an outer film leaving no paper exposed;

complying with ASTM C 1136 Type I, II, III, IV, VII, VIII, and X. Includes Self-Sealing Lap closure system with butt strips.

e. ASJ-SSL Vapor Retarder – factory-applied and composed of an aluminum foil layer, reinforced with glass scrim, bonded to a layer of White Kraft paper, complying with ASTM C 1136, Type I. Includes Self-Sealing Lap closure system with butt strips.

2.2 FIELD-APPLIED JACKET AND FITTINGS

A. Aluminum Jacket and Fittings:

1. Provide aluminum jacket and fittings complying with ASTM C1729, unless otherwise indicated. Where HVAC piping is exposed to weather use 0.020” minimum thickness, stucco-embossed aluminum jacket and fittings over installed insulation, positioned and installed to shed water and make a waterproof assembly. Each lap is to be sealed completely with 1/8” bead of metal jacketing sealant under each lap.