New Construction. Corner Store # W N San Antonio, TX Mechanical, Electrical and Plumbing Specifications BID ISSUE 02/27/17

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1 CST BRANDS, INC. New Construction Corner Store # W N San Antonio, TX Mechanical, Electrical and Plumbing Specifications BID ISSUE 02/27/17 02/27/17 02/27/17 Mechanical Electrical

2 INDEX OF MEP SPECIFICATIONS Energy Squared Texas, TBPE Firm No. F CST Brands, Inc. Corner Store # W N San Antonio, TX /27/17 BID ISSUE MECHANICAL & PLUMBING General Requirements for Mechanical Work Mechanical Insulation Plumbing Piping Systems and Plumbing Specialties Plumbing Fixtures Packaged Air-Conditioning Units Fabric Ductwork Centrifugal Fans Ductwork Electric Temperature Control Systems Air Inlets and Outlets Testing, Adjusting, and Balancing 6 ELECTRICAL General Requirements for Electrical Work Raceways Wire and Cables Electrical Boxes and Fittings Wiring Devices Cabinets and Enclosures Supporting Devices Electrical Identification Service Entrance (600 Volts or Less) Disconnect Switches Secondary Grounding Panelboards Overcurrent Protective Devices Contactors Lighting Fixtures Site Lighting 6

3 SECTION GENERAL REQUIREMENTS FOR MECHANICAL WORK PART 1 - GENERAL 1.1 SCOPE A. Each subcontractor proposing to do work covered under this section of these specifications shall perform his entire operations in strict accordance with all requirements of this section of these specifications. B. The "General Provisions and Requirements" Division 1 of these specifications, which is bound herewith are hereby made a part of this Section of these specifications to the same extent as if written herein in full and each subcontractor proposing to do work covered under the Mechanical Section of these specifications shall perform his entire operations in strict accordance with all the requirements thereof, insofar as they pertain and are applicable. C. This Division of these specifications includes the furnishing of all labor, materials, tools, equipment, drayage, riggings, fees, permits, etc. (unless specifically indicated to be furnished by others) necessary and/or reasonably required for the complete installation of all air conditioning and plumbing work shown by the Drawings and/or herein specified. The entire work shall be delivered complete in perfect working order and to the entire satisfaction of the CST Project Manager. D. The Scope of Work shall include all items necessary for installation such as all required hangers, supports, sleeves and other items and appurtenances as may be required for complete, operating systems. 1.2 FEES AND PERMITS A. Each subcontractor shall secure and obtain all permits and licenses required for his work and shall pay all fees in connection with same. 1.3 CODES AND INSPECTIONS A. All work shall be done in strict accordance with all applicable city, county, state and national codes, specifications, and ordinances and in accordance with all utility company regulations. B. All materials and workmanship shall also comply with the requirements of: 1) The National Board of Fire Underwriters (NBFU) 2) The National Electrical Code (NEC) 3) The American Gas Association (NGA) 4) Underwriters Laboratories (UL) 5) American Society of Heating Refrigeration and Air Conditioning Engineers (ASHRAE) and all other recognized industry standards wherein they are listed and are applicable. 1.4 DISCREPANCIES A. The Drawings and these specifications are intended to comply with all the aforementioned rules and regulations; however, some discrepancies may occur. Where such discrepancies occur, the subcontractor, upon discovering said discrepancy, immediately notify the General Contractor of same and wait for an interpretation. Should the subcontractor fabricate and/or install materials or GENERAL REQUIREMENTS FOR MECHANICAL WORK

4 workmanship in such a manner that does not comply with the applicable codes, rules, and regulations, he shall bear all cost arising in correcting these deficiencies to comply with said codes. 1.5 LOCAL CUSTOMS A. Comply with all local customs as to which particular trade shall install any part or parts of any work or equipment specified herein. 1.6 EXAMINATION OF SITE A. Visit the site of the proposed work and carefully examine the existing conditions and limitations thereof, and shall include in his bid all costs of any kind whatsoever which are incurred through limitations of the existing conditions. This responsibility shall include his responsibility to provide in his bid labor and materials for all temporary demolition and restoration(such as relocation of piping, ducts, or equipment while other work is installed, then restoration after the work is complete). This also includes his responsibility to provide temporary service to occupied portions of the project that require plumbing or HVAC service while construction interrupts the normal supply of these services. 1.7 UTILITIES A. The location and size of sewer lines, the locations and size of water lines, the location of natural gas lines are all shown in accordance with data gathered at the site. B. This data has been shown accurately on the Drawings as the scale will permit. Each subcontractor shall include adequate funds in his bid price to cover the installation and connections of all utilities with a reasonable amount of variation in the actual location of utilities to the scaled locations shown on the Drawings. C. The subcontractor shall be responsible for arranging for and coordinating with the local utility companies all utility connections and metering, both temporary and permanent covered under this Division of these specifications. 1.8 EXECUTION OF WORK Each subcontractor shall plan, schedule and execute his work so as not to interfere with the work of other subcontractors in the building, or on the premises. 1.9 SUPERVISION VS. OBSERVATION A. Each subcontractor shall keep a competent superintendent or foreman on the job at all times who shall be in full responsible for the supervision of his work B. The CST Project Manager may observe the work from time to time for the express purpose of verifying compliance by the subcontractor with the contract documents. Such action on the part of the CST Project Manager shall not be construed as construction supervision nor shall such action indicate approval of the manner or location in which the work is being performed as being a safe place or practice RECORD DRAWINGS A. Each subcontractor shall maintain a set of hand marked, current "as-built blueline contract drawing prints on the job. Upon completion of the work, furnish the CST Project Manager one set of blueline prints legibly marked in red ink or red pencil (construction set not acceptable use, a new set of prints obtained from the General Contractor) to indicate all changes, additions, deletions, etc., from the contract Drawings. If changes cannot be legibly shown on the prints, prepare all necessary supplementary Drawings showing the exact "as-built" conditions and shall transmit this data to the CST Project Manager by letter, certifying the marked prints and/or supplemental Drawings represent all the work performed in completing the contract. GENERAL REQUIREMENTS FOR MECHANICAL WORK

5 1.11 DRAWINGS AND SPECIFICATIONS A. The specifications and the Drawings accompanying same are intended to cover systems which will fit into several available spaces and which will insure complete and satisfactory systems. Therefore, carefully examine the plans and be responsible for the proper fitting of this material and apparatus into the building. Carefully lay out the work at the site to conform to the structural conditions and to conform to the details of the installation supplied by the manufacturer of the equipment to be installed. The Mechanical plans do not give the exact details as to the elevations of the pipe lines and they do not show the exact locations of these piping systems to scale. Before installation of these systems, refer to the building construction as it is then in progress and determine the exact locations of these piping systems in conjunction with advice from the General Contractor and/or his Superintendent. B. All devices necessary for the installation and support of pipes, and equipment (such as sleeves, inserts, etc.) shall located and installed as the construction progresses in order to allow completing of each phase of the work in the proper sequence. C. The Drawings showing the extent and arrangement of the work of a particular trade must be used together with the Drawings showing the extent and arrangements of the work of the other trades and each subcontractor shall lay out his work with due consideration for the other. D. If any major departure from these Drawings is deemed necessary by the subcontractor, detailed Drawings and descriptions of the departure and a statement of the reasons therefor shall be submitted to the CST Project Manager as soon as practicable. No major departures from the arrangements shown on the Drawings shall be made without prior written approval of the CST Project Manager. E. In general, piping and ductwork in finished areas of the building shall be run concealed in chases, furrings, suspended ceilings, etc., unless noted and directed otherwise. Should any conditions arise which would cause any piping or ductwork to be exposed in finished areas, it shall be immediately called to the CST Project Manager's attention and correction of the discrepancy shall be made in accordance with the CST Project Manager's decision. In unfinished spaces such as equipment rooms, all pipe and ductwork shall be run as high as possible and to a continuous grade square to the building and securely supported SHOP DRAWINGS AND SAMPLES A. This subcontractor shall refer to the AlA General Conditions, paragraph 4.13 "Shop Drawings and Samples" for requirements concerning these documents. B. Each subcontractor shall submit shop Drawings and/or diagrams for job coordination in all cases where deviations from the contract Drawings are contemplated because of job conditions, interference s, or substitutions of equipment, or when requested by the CST Project Manager for purposes of clarification of the Contractor's intent. He shall also submit detailed items of equipment. Shop Drawings and details under this section shall include, but is not necessarily limited to, the following where applicable to the particular section of these specifications: 1) NC Units 2) Fans 3) Ductwork 4) Plumbing Fixtures C. These Drawings and diagrams shall show all pipe and ductwork connections as well as the manufacturer's name and catalog number on each piece of equipment used, and shall be drawn accurately to scale, not less that 1/4" 1 '-0". GENERAL REQUIREMENTS FOR MECHANICAL WORK

6 D. Submittal of shop Drawings and complete engineering submittal data shall be made in sufficient copies to provide one to be retained by the CST Project Manager; additional copies as required by the General Contractor within thirty days (30) days after signing a contract. The General Contractor shall correlate the submittal data. E. As a part of these documents, specific manufacturers and model numbers have been used to set the standards of quality and to provide the contractor and CST Project Manager with a guide to the size and power consumption of equipment that will fit into the design. If the contractor or his suppliers wish to submit other equipment, materials, or methods than those specified, it shall be necessary for the contractor to submit this change in writing ten days before the bid date. If this is not done, the CST Project Manager will not accept the substitution, unless other circumstances, determined by the CST Project Manager mandate the change TRANSPORTATION, SCAFFOLDING AND HOISTING A Each subcontractor shall provide the necessary transportation to facilitate the delivery of all materials, equipment, tools and labor to the job to perform the work in accordance with the intent of these documents. B. Each subcontractor shall provide his own scaffolding, ladders, and facilities for making his installation for facilitating the necessary adjustments and balancing and cleaning of fixtures and devices. C. Each subcontractor shall provide his own hoisting facilities to set his material and equipment in place on the building as indicated on the Drawings STORAGE OF MATERIALS A. Provide space for storage of materials, equipment or tools at ground level. Any storage contemplated within the building will be allowed only upon specific approval of the CST Project Manager DELIVERY AND PROTECTION A. All large pieces of apparatus, which are to be installed in the building and which are too large to permit access through doorways, stairways, or shafts, shall be brought to the job and placed in the spaces before the enclosing structure is completed. All apparatus shall be cribbed up from the floor and covered with tarpaulins or other protective covering where necessary or directed. Damage resulting from failure to comply with this requirement will be considered justification for rejection of the damaged apparatus and its complete replacement PROTECTION OF STRUCTURE AND MATERIALS A. Each subcontractor, in performing his work, shall take particular care not to damage the structure. All finished floors and step treads shall be covered to prevent any damage by workmen or their tools and equipment during the construction of the building. In addition, each subcontractor shall protect all materials on the job site whether a part of his contract or the property of another PROTECTING WORK A. Each subcontractor shall provide warning lamps on all obstructions at night and shall guard openings in the proper manner CUTTING AND PATCHING A. Each subcontractor shall notify the General Contractor and other subcontractors in ample time of the locations and sizes of all chases; sleeves and any other openings required for passage or concealment of pipes or for installation of equipment in the building. Any cutting necessary GENERAL REQUIREMENTS FOR MECHANICAL WORK

7 because of neglect of this provision shall be done by or at the direction and expense of the subcontractor responsible after obtaining approval of CST Project Manager. Provide sleeves as required for all pipes passing through floors, walls and roof and see that they are placed and maintained in their proper positions until the work is completed. All existing plumbing and mechanical work that is required to be temporarily removed and replaced will be done at no extra cost to CST Brands, inc SLEEVES A. Where pipes pass through walls, floors or other masonry surfaces, PVC pipe sleeves shall be used. The inside diameter of these sleeves shall be at least one haif-inch greater that the outside of the pipe to be inserted. After the pipes are installed, the subcontractor shall fill the annular space between the pipe and its sleeve with a mastic or with shredded lead using packing as required BUCK AND GROUNDS A. Furnish and install wood bucks and grounds for all plumbing fixtures, access panels, and/or any other devices recessed into the walls, floors or ceilings WATERPROOFING A. In any case where a subcontractor finds it necessary to cut holes through the waterproofing of exterior walls or floors to support or install the work, he shall waterproof the hole with the same waterproofing before cementing in the device to be installed PLATES A. Furnish and install spring and snap chromium plated plates, both sides, at all pipes, exposed, passing through walls, floors, ceilings or partitions, except at plumbing fixtures where plates will be set screw type, same finish. Plates shall be sized to fit snugly against the outside of the insulation s on lines which are insulated. The plates shall be similar and equal to Crane Company No.10. B. Furnish and install 1/8" chromium plated brass cover plates, screwed into the plug of all cleanouts and set flush with finished floors and walls HANGERS AND SUPPORTS A All pipes throughout the building, both horizontal and vertical shall be adequately supported from the construction. Support vertical pipes with riser clamps to fit the lines and elsewhere as shown and/or where required for proper support, furnish and install anchor base fittings or other approved supports. Piping systems shall be completely self-supporting, without stress to any piece of equipment. 1) Space hangers so as to properly support the piping. Hangers for copper or steel lines shall be spaced according to the following schedule: Pipe Size Hanger Spacing Rod Size 0-11/2" 318" 2-3" 1 0'-0" 1/2" 4-6" 1 2'-0" 1/2" 2) Space trapeze hangers for multiple lines in accordance with the schedule for the smallest pipe supported or additional supports provided for small lines. Hangers shall be more closely spaced if conditions require. Provide braces as required to insure rigid secure support, taking care not to interfere with necessary expansion of lines. GENERAL REQUIREMENTS FOR MECHANICAL WORK

8 3) Hangers for uninsulated copper lines shall be Fee and Mason Fig. 364 copper plated clevis type having vertical adjustment with locknuts. 4) Hangers for all insulated copper lines shall be Fee and Mason Fig. 239 clevis type having vertical adjustments with locknuts. 5) Trapeze hangers shall be Fee and Mason Fig. 827 and/or 828 as required EXCAVATING AND BACKFILLING A. Each subcontractor shall do all excavating required under this Division of these specifications and after the work is in place shall backfill all trenches. B. Excavate trenches to required depths, with sides kept as nearly vertical as possible, properly formed and braced. The trenches shall-be minimum width for pipe installation bottoms graded and tamped where necessary; rock excavated to a depth of 6" below required depth and trench backfill lied with sand, to proper elevation. Piping systems shall be tested, inspected and approved prior to backfilling the trench. C. Trenches under concrete floors, drives and/or walks shall be backfilled with sand; other trenches shall be backfilled with sand to a depth of 6" above the top of the pipe and subsequent layers of backfill may be excavated earth, loam, sand, or gravel, all free of large clods and with rocks no larger than 1-1/2" in diameter. All backfill materials shall be installed in layers 12" deep, adequately tamped and wetted down before the second layer is placed. Contractor shall patch floor after piping is installed. D. Remove all excess excavated material from the job site SOIL CONDITIONS A. This specification and the drawing in no way imply as to the exact conditions of the soil or paving to be encountered. When excavating may be required in execution of the work, each Contractor agrees that he has informed himself regarding conditions affecting the work and materials required, without recourse to any extra compensation for soil conditions that may occur COVER FOR UNDERGROUND PIPING A. All piping of any nature shall be installed with a minimum cover of eighteen (18") inches unless specifically indicated otherwise. Should any condition arise which would not allow this minimum cover, do not install such piping until written approval is obtained from the CST Project Manager EQUIPMENT CONNECTIONS A. It is the intent of these specifications and accompanying Drawings that all systems and equipment being furnished under the plumbing sections of these specifications shall be provided with all necessary utility connections completed to allow safe and proper operation of said systems. All exposed piping work shall be chromium plated. If sufficient information is not indicated by the Drawings or these specifications, the subcontractor whose work is involved shall apply in writing to the CST Project Manager for instructions regarding the manner in which the work is to be done and he shall complete said work in accordance with these instructions. The contractor shall be responsible for making all necessary adaptations and modifications to configuration and size to rough in all equipment installed in this contract that will allow a safe, legal, and reliable installation ACCESS A. As a part of this project, it shall be required that the contractor examine the finishes of each room and provide access to all dampers, valves, or other mechanical or plumbing devices that may require GENERAL REQUIREMENTS FOR MECHANICAL WORK

9 adjustment in the normal maintenance of the building. In the case of permanent walls or ceilings, the contractor shall provide access doors that have bolted or keyed latches, and are primed and painted to match surrounding finishes PAINTING A. All of the mechanical and plumbing equipment that does not come with a factory finished of paint, galvanizing, or chrome shall be primed and painted with a minimum of two primer coats of an approved oxide primer, and painted with a minimum of two coats of approved finish paint This includes all ferrous and aluminum piping, hangers, duct, equipment, and accessories OPERATING INSTRUCTIONS A. The plumbing subcontractor shall turn over to the CST Project Manager, with his request for final payment, a brochure containing two complete sets of the following information and data: 1) All approved engineering submittal data. 2) Approved Drawings including wiring diagrams, control diagrams, etc. on all equipment. 3) Approved shop Drawings of all systems, including field prepared Drawings for piping, layout, and installations. 4) Framed operating instructions (basic steps). 5) All warranties and guarantees and manufacturer's directions shipped with the equipment and/or materials covered by the Contractor. 6) Repair parts list on all major items of equipment. 7) Any and all other data and/or Drawings required during construction CLEANING A. Each subcontractor shall at all times keep the premises free from accumulations of waste materials or rubbish caused by him, his employees or work. This debris shall be completely removed from the building and from the jobsite. B. At completion of the job, remove all tools, scaffolding and surplus materials and leave the areas "broom clean" GUARANTEE A. The subcontractor shall guarantee all work covered by the respective section of the specifications under which his contract was performed to be free from faulty, defective, or improper materials or workmanship for a period of one (1) year after the final acceptance of the work. Should any such failure occur during said guarantee period, he shall, at his own expense, amend and make good all such defects, settlements, and/or faults. END OF SECTION GENERAL REQUIREMENTS FOR MECHANICAL WORK

10 SECTION MECHANICAL INSULATION PART I - GENERAL 1.1 SUMMARY A. Scope: Extent of mechanical insulation required by this Section is indicated on the Drawings, by the requirements of this Section, and Section 15010, "General Requirements for Mechanical Work." B. Types: Types of mechanical insulation specified in this Section include the following: 1. Fiberglass pipe insulation. 2. Cellular glass pipe insulation. 3. Flexible unicellular pipe insulation. 4. Fiberglass duct insulation. 5. Fiberglass equipment insulation. 6. Cellular glass equipment insulation. 7. Insulation jackets. 8. Insulation accessories. C. Related Sections: Refer to other sections of Division 15 for the following: 1. Supports and Anchors 2. Mechanical Identification 3. Plumbing Piping Systems and Plumbing Specialties 4. Plumbing Equipment 5. Refrigerant Piping and Specialties 6. Sheet Metal Ductwork 7. Fibrous Glass Ductwork D. Other Divisions: Refer to other divisions of the specification for the following: 1. Painting: Division 9. E. Definitions: Unless otherwise specified, interpret these words as follows: 1. Finished Spaces: All areas except furred spaces, pipe and duct shafts, unheated spaces immediately below roof, spaces above ceilings, unexcavated spaces, crawl spaces and tunnels. 2. Concealed Insulation: Insulation not visible in a finished space or in pipe shafts, furred spaces, above ceilings. 3. Exposed Insulation: Insulation visible in a finished or unfinished space. 1.2 QUALITY ASSURANCE A. Codes and Standards: Provide insulation conforming to the following standards: 1. American Society for Testing and Materials (ASTM): Manufacture and test insulation in accordance with the ASTM standards, including: a. B 209 Specification for Aluminum and Aluminum-Alloy Sheet and Plate. b. C 165 Recommended Practice for Measuring Compressive Properties of Thermal Insulation. MECHANICAL INSULATION

11 c. C 167 Test Methods for Thickness and Density of Blanket or Batt Thermal Insulation s. d. C 177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot- Plate Apparatus. e. C 195 Specification for Mineral Fiber Thermal Insulating Cement f. C 302 Test Method for Density of Preformed Pipe Covering type Thermal Insulation. g. C 305 Test for Thermal Conductivity of Pipe Insulation. h. C 449 Specification for Mineral Fiber Hydraulic-Setting Thermal Insulating and Finishing Cement. i. C 547 Specification for Mineral Fiber Preformed Pipe Insulation. j. C 552 Specification for Cellular Glass Block and Pipe Thermal Insulation. k. C 553 Specification for Mineral Fiber Blanket and Felt Insulation (Industrial Type). l. C 592 Mineral Fiber Blanket Insulation and Blanket-Type Pipe Insulation (Metal-Mesh Covered). m. C 921 Practice for Determining Properties of Jacketing Materials for Thermal Insulation n. E 84 Test Method for Surface Burning Characteristics of Building Materials. 2. American Society of Heating, Refrigerating, and air-conditioning Engineers (ASHRAE): Provide and install pipe and duct insulation in accordance with the following ASHRAE standard: a. 90 Energy Conservation in New Building Design. 3. National Fire Protection Association (NFPA): Manufacture insulation in accordance with the following NFPA standards: a. 255 Test Methods, Surface Burning Characteristics of Building Materials. B. The following materials are exceptions to the flame / smoke rating requirements specified above: 1. Nylon anchors for securing insulation to ducts or equipment. 2. Cork or treated wood inserts used between shields and piping at hangers on low-temperature piping. 3. Factory premolded one piece PVC fitting and valve covers. 4. Flexible unicellular insulation with smoke developed rating not exceeding 150. C. Do not provide materials with flameproofing treatments subject to deterioration due to the effects of moisture or high humidity. D. Flame / Smoke Rating: Provide composite mechanical insulation (insulation, jackets, coverings, sealers, mastics and adhesives) with flame-spread index of 25 or less, and smoke-developed index of 50 or less, as tested by ASTM E 84 (NFPA 255) method. In addition, the products, when tested, shall not drip flame particles, and flame shall not be progressive. Provide Underwriters Laboratories Inc., label or listing, or satisfactory certified test report from an approved testing laboratory to prove that fire hazard ratings for materials proposed for use do not exceed those specified. E. Corrosiveness: Provide insulation such that when tested in accordance with the following test, the steel plate in contact with the insulation shows no greater corrosion than sterile cotton in contact with a steel plate for comparison. MECHANICAL INSULATION

12 1. Test Specimen: Two specimens shall be used, each measuring 1 inch by 4 inches by approximately 1/2 inch thick. 2. Apparatus: Provide a humidity test chamber in which two polished- steel test plates 1 inch wide, 4 inches long and inch thick shall be placed. Plates shall be clear finish, coldrolled strip steel, American quality, quarter hard, temper No.3, weighing 0.85 lb/sq. ft. 3. Procedure: The steel test plates shall be rinsed with cp benzol until their surfaces are free from oil and grease and allowed to dry. One piece of cold-rolled steel shall be placed between the two insulation specimens and secured with tape or twine. The test specimen and uncovered plate shall be suspended vertically in an atmosphere having a relative humidity of 95 percent plus or minus 3 percent, and a temperature of 120 degrees plus or minus 3 degrees F., for 96 hours, and then be examined for corrosion. 1.3 SUBMITTALS A. Product Data: Submit manufacturer's technical product data and installation instructions for each type of mechanical insulation. Submit schedule showing manufacturer's product number, K-value, thickness, and furnished accessories for each mechanical system requiring insulation. Also furnish necessary test data certified by an independent testing laboratory. B. Maintenance Data: Submit maintenance data and replacement material lists for each type of mechanical insulation. Include this data and product data in maintenance manual. C. Samples: Submit manufacturer's sample of each piping insulation type required, and of each duct and equipment insulation type required. Affix label to sample completely describing product. 1.4 DELIVERY, STORAGE, AND HANDLING A. Delivery: Deliver insulation, coverings, cements, adhesives, and coating to the site in containers with manufacturer's stamp or label affixed showing fire hazard indexes of products. B. Storage and Handling: Protect insulation against dirt, water, chemical, and mechanical damage. Do not install damaged or wet insulation; remove from project site. PART 2- PRODUCTS 2.1 INSULATION GENERAL REQUIREMENTS A. General: Provide insulation conforming with the referenced publications and the specified temperature ranges and densities in pounds per cubic foot (pcf). B. Insulation Exterior: Provide insulation exterior that is cleanable, grease resistant, non-flaking, and non-peeling. C. Physical Changes: Provide insulation that shows no physical changes that adversely affect its qualities under normal use at the intended use temperature. 2.2 FIBERGLASS PIPE INSULATION A. General: Provide fiberglass pipe insulation conforming to ASTM C 547 Class 1(450 degrees F. maximum) preformed and plain. B. Fittings, Flanges, and Valves: Provide insulation for fittings, flanges, and valves premolded, precut, or job fabricated of the same thickness and conductivity as used on adjacent piping. MECHANICAL INSULATION

13 2.3 CELLULAR GLASS PIPE INSULATION A. General: Provide cellular glass pipe insulation conforming to ASTM C 552, Type II (pipe and tubing), Class 2 (jacketed), 9.5 pcf (average) maximum. Provide cellular glass pipe insulation for temperatures of minus 450 degrees F. to 800 degrees F. B. Fittings, Flanges, and Valves: Provide insulation for fittings, flanges, and valves premolded, precut, or job fabricated of the same thickness and conductivity as used on adjacent piping. 2.4 FLEXIBLE UNICELLULAR PIPE INSULATION A. General: Provide flexible unicellular pipe insulation conforming to ASTM C 534, Type 1 (tubular). Provide flexible unicellular pipe insulation for temperatures of minus 40 degrees F. to 210 degrees F. Do not provide flexible unicellular pipe insulation for low temperature water piping 2-inch and larger. B. Fittings, Flanges, and Valves: Provide insulation for fittings, flanges, and valves premolded, precut, or job fabricated of the same thickness and conductivity as used on adjacent piping. 2.5 FIBERGLASS DUCT INSULATION A. General: Provide fiberglass duct insulation for exposed and concealed spaces as follows: 1. For exposed insulation, provide rigid fiberglass duct insulation conforming to ASTM C 612 block and board, Class 1 (temperature to 400 degrees F., non-load bearing, 10 pcf average maximum). Rigid fiberglass duct shall have a minimum R-value of For concealed insulation, provide rigid fiberglass insulation as specified above or provide flexible fiberglass duct insulation with minimum 1-1/2 pounds per cubic foot density and with factory applied vaporproof jacket ASTM C 921, Type I. Flexible duct shall have an installed R-value of FIBERGLASS EQUIPMENT INSULATION A. General: Provide fiberglass equipment insulation for exposed and concealed spaces as follows: 1. For exposed insulation, provide rigid fiberglass equipment insulation conforming to ASTM C 612, block and board, Class 1 (temperature to 400 degrees F., non-load bearing, 10 pcf average, maximum). 2. For concealed insulation, provide rigid fiberglass insulation as specified above or provide flexible fiberglass equipment insulation conforming to ASTM C 553, Type I (Resilient, Flexible), Class BS (up to 400 degrees F., 2.0 pcf nominal). 2.7 CELLULAR GLASS EQUIPMENT INSULATION A. General: Provide cellular glass equipment insulation conforming to ASTM C 552, Type I (flat block), 9.5 pcf average maximum. Provide cellular glass duct insulation for temperature to 800 degrees F. 2.8 FLEXIBLE UNICELLULAR EQUIPMENT INSULATION A. General: Provide flexible unicellular equipment insulation conforming to ASTM C 534, Class S (sheet). Provide flexible unicellular equipment insulation for temperatures of minus 40 degrees F. to 180 degrees F. 2.9 INSULATION JACKETS A. General: Provide insulation jackets in accordance with ASTM C 921. Test insulation jacket as a composite with the insulation. MECHANICAL INSULATION

14 B. Type I or II: Provide jacket Types I or II complying with ASTM C Use Type I, vapor barrier type on cold piping, cold ductwork and cold equipment. 2. Cover jackets on exposed insulation with an additional glass cloth jacket and paint as specified. C. Beach Puncture: Provide jacket Type I and II beach puncture per Federal Specification (FS) HH- B-100, "Barrier Material Vapor (For Pipe, Duct and Equipment Thermal, Insulation)." D. Type Ill: Provide protective jacket made of sheet aluminum in accordance with ASTM B 209, 3003 alloy, H-14 temper, inch thick. Provide a moisture barrier lining except where applied directly over a Type I vapor barrier jacket. Provide screw-lock stainless steel bands INSULATION ACCESSORIES A. General: Provide insulation accessories compatible with materials to which applied and suitable for the service. Provide insulation accessories that do not corrode, soften or otherwise attack the insulation or jacket in either the wet or dry state. B. Adhesives, Coatings, Sealing Compounds, and Protective Finishes: Provide adhesives, coatings, sealing compounds, and protective finishes in the following categories: 1. Category 1 Lagging adhesive and Coating for Glass Cloth Jackets and other facings 2. Category 2 Lap Adhesive for Vapor Barrier Jackets. 3. Category 3 Insulation Cement per ASTM C 195 (100 to 1600 Degrees F., Mineral Fiber, Thermal Conductivity 0.85 maximum at 200 degrees F. mean when tested per ASTM C Category 4 Contact Type Adhesive for Installing Flexible Unicellular Insulation. 5. Category 5 Bedding Compound and Joint Sealers 6. Category 6 Coating Compound - Vapor Barrier Treatment (For Indoor Use Only). C. Staples: Provide outward clinching type staples, 314-inch nominal width, of monel metal. D. Bands: Provide bands of galvanized steel, aluminum, brass, or nickel copper alloy of 3/4-inch nominal width. Provide band thickness exclusive of coating not less than 0,005-inch for steel and nickel copper alloy, inch for aluminum, and 0.01-inch for brass. E. Wire: Provide wire of 1 4-guage nickel copper alloy or copper clad steel, or 1 8-gauge, soft annealed galvanized steel. F. Wire Netting: Provide wire netting for exposed surface of insulation to be cement finished. Provide wire netting that is 22-gauge 1-inch galvanized mesh, with continuous 26-gauge galvanized steel corner beads having 2-1/2-inch wings. G. Corner Angles: Provide comer angles on insulation of exposed ducts and exposed equipment formed of 28 gauge, 1-inch by 1-inch aluminum adhered to 2-inch by 2-inch heavy 'craft paper to protect external comers under field applied jackets or facings. PART 3 - EXECUTION 3.1 GENERAL INSULATION INSTALLATION A. General: Install insulation material with smooth and even surfaces. Unless otherwise specified, install insulation materials, accessories and finishes in accordance with the manufacturer's published recommendations. MECHANICAL INSULATION

15 B. Surface Condition: Do not apply insulation materials until all surfaces to be covered are clean and dry; all foreign materials, such as rust, scale, and dirt have been removed; and, where specified, surfaces have been painted. Insulation shall be clean and dry when installed and during the application of any finish. Do not install the insulation on pipe fittings, valves and pipe joints before the piping is pressure tested and approved. C. Moisture and Vapor Seal: Provide a complete moisture and vapor seal wherever insulation terminates against metal hangers, anchors and other projections through insulation on cold surfaces for which a vapor seal is specified. D. Jackets: Provide jackets as follows: 1. Install jackets drawn tight with all joints having laps or butt strips of material identical with jacket, secured with adhesive or vapor barrier compound. Provide jackets on piping with not less than 1-1/2- inch laps at longitudinal joints and not less than 3-inch wide butt strips at end joints. Provide jackets on blanket, board and block insulation with 2-inch wide laps or 3-inch wide butt strips. Seal all openings, punctures and breaks in vapor barrier jackets with vapor barrier compound, Category On all exposed insulation, provide a glass cloth jacket directly over the Type I or II jacket, painted as specified. E. Valves, Fittings and Flanges: Insulate as specified for the service involved and cover all surfaces of the insulation with open weave glass cloth, glass tape or glass fabric of 40 by 40 or 20 by 20 mesh embedded between two 1,16-inch thick coats of vapor barrier compound Category 6. Install the fabric drawn smooth and tight with a 2-inch overlap at all joints. F. Wall and Floor Openings: Install insulation and coating of jackets continuous through wall and floor openings, except at fire dampers and smoke dampers. G. Insulation Thickness: Provide insulation of thickness corresponding to the following tables: TABLE 1 PIPE INSULATION THICKNESS (INCHES NOMINAL) Cellular Glass (CG), Flexible Unicellular (FU), and Fiber Glass (FG). TEMPERATURES -(degrees F.) PIPE DIAMETERS (Inches) Minus 30 to Zero FG CG Zero to 34 FG CG to 59 GF 1 1 CG FU to 200 FG CG FU 1 1 (210 Max.) MECHANICAL INSULATION

16 Cellular Glass (CG), and Fiber Glass (FG). TEMPERATURES THICKNESS (degrees F.) (inches) FG CG* Minus 30 to to 100 NONE NONE 100 to to NA: Not applicable. * 450 degrees F. max. 3.2 INSULATION FOR PLUMBING PIPING AND EQUIPMENT A. General: Unless otherwise specified, insulate plumbing piping and equipment. B. Locations Insulated: Install insulation in the following locations and as indicated: 1. Cold water piping susceptible to freezing. 2. Hot water piping. 3. Drainage piping in ceiling spaces and in roof spaces, and where exposed in finished spaces. 4. Water storage tanks, water heaters. 5. Piping used only for wastes from drinking fountains, water coolers, room unit coolers, room air conditioning units, and piping handling condensate only from cooling and dehumidification equipment. C. Locations Not Insulated: Do not install insulation in the following locations: 1. Brass or copper piping or tubing specified to be chrome plated. 2. Self-contained water heaters with storage tanks, where the insulation for this equipment is installed at the factory. 3. Unions, flanges and valve bonnets. D. Insulation Thickness: Insulate plumbing piping with insulation thickness specified in Table 1. Insulate plumbing equipment with insulation thickness specified in Table 2. Provide preformed insulation for plumbing piping, except flexible unicellular insulation, with factory applied Type I jackets. E. Fittings and Valves: Insulate fittings and valves with insulation thickness specified in Table 1. Install insulation flush with adjacent pipe insulation. F. Gaps and Termination s: Except for flexible unicellular insulation, neatly terminate all insulation at each end of unions and at other points where required and seal with coating compound 6. Fill gaps occurring at hangers with insulating cement and finish flush with the adjoining pipe insulation as specified for fittings. G. Flexible Unicellular Insulation Application: Install flexible unicellular insulation as follows: 1. Slip flexible unicellular pipe insulation on the seal pipe prior to connection wherever possible, and the butt joints with adhesive, Category 4, as specified under "Insulation Accessories" article, of this Section. 2. Where the slip-on technique is not possible, slit the insulation and apply to the pipe, seal the seams and butt joints with adhesive, Category 4, as specified under "Insulation Accessories" article, of this Section. MECHANICAL INSULATION

17 3. Where pipe hangers are used outside of the insulation, protect the insulation from compression as specified under "Insulation for Low Temperature Piping" article, of this Section. 4. Insulate all fittings and valves (except unions, flanges and valve bonnets) in piping insulated with flexible unicellular insulation with similar pipe or sheet insulation of the same thickness. 5. Seal all joints at fittings and valves with adhesive, Category 4, as specified under "Insulation Accessories" article, of this Section. 6. Insulate screwed fittings with sleeved fitting covers fabricated from miter-cut pieces of pipe insulation according to the manufacturer's sleeving size recommendations and overlap and seal to the adjacent pipe insulation. 7. Insulate all valves and welded fittings with fitting covers fabricated from similar pipe insulation or sheet insulation. 3.3 INSULATION FOR LOW-TEMPERATURE PIPING A. General: Unless otherwise specified, insulate low-temperature piping. B. Locations Insulated: Install insulation in the following locations and as indicated: 1. Refrigerant suction piping. 2. Liquid line for air cooled condensers and evaporative condensers for systems operating with an outside air temperature lower than 40 degrees F. C. Insulation Thickness: Insulate low temperature piping with insulation thickness specified in Table 1. D. Refrigerant Hot Gas and Liquid Lines and Condenser Water Piping: Insulate refrigerant hot gas and liquid lines and condenser water piping, where exposed in air conditioned or refrigerated spaces, as specified for hot water piping under "Insulation for Heating Piping and Equipment" article, of this Section. Insulate other condensing water piping, operating at less than 50 degrees F. any time of the year. E. Preformed Insulation: Provide preformed insulation for low-temperature piping, except flexible unicellular insulation, with factory applied jackets, Type I. F. Fittings, Flanges, and Valves: Insulate all fittings, flanges, and valves (except valve stems, hand wheels and operators) with insulation of the same thickness as adjacent pipe insulation. G. Pipe Support: Support insulated low temperature piping by hangers and metal protection shields, conforming with MSS SP 58, Type 40 installed outside of the insulation. Provide one of the following on all piping 2-inch and larger, where pipe insulation is of less than 9 lbs. density, except for cellular glass: 1. An insulation insert with a density of 9 lbs. or more, 12-inches long, and covering at least 90 degrees of the pipe surface transmitting the pipe weight 2. Protection saddles, prefabricated to include the insert material, and vapor barrier jacket H. Anchor Insulation: Where anchors are secured to piping to be insulated, insulate the anchor the same as piping for a distance at least four times the insulation thickness, to prevent condensation. Except for unicellular insulation, vapor seal all insulation as previously specified for fitting insulation. I. Flexible Unicellular Insulation: Install flexible unicellular insulation as follows: 1. Slip flexible unicellular pipe insulation on the pipe prior to connection wherever possible, and seal the butt joints with adhesive, Category 4, as specified under "Insulation Accessories" article, of this Section. MECHANICAL INSULATION

18 2. Where the slip-on technique is not possible, slit the insulation and apply to the pipe, seal the seams and butt joints with adhesive, Category 4, as specified under "Insulation Accessories" article, of this Section. 3. Protect flexible unicellular insulation from compression at all pipe hanger locations by the use of compression resistant inserts and protective metal shields. Provide inserts of the same thickness and outside contour as the adjoining insulation, mold or shape to fit at least 90 degrees of the pipe circumference, and seal into adjoining pipe insulation with adhesive, Category 4, as specified under "Insulation Accessories" article, of this Section. 4. Insulate all fittings, flanges and valves (except valve stems, hand wheels and operators) in piping insulated with flexible unicellular insulation with similar pipe or sheet insulation of the same thickness. 5. Seal all joints at fittings and valves with adhesive, Category 4, as specified under "Insulation Accessories" article, of this Section. 6. Insulate screwed fittings with sleeved fitting covers fabricated from miter-cut pieces of pipe insulation according to the manufacturer's sleeving size recommendations and overlap and seal to the adjacent pipe insulation. 7. Insulate all valves and welded fittings with fitting covers fabricated from similar pipe insulation or sheet insulation. 3.4 INSULATION FOR AIR HANDLING AND AIR DISTRIBUTION EQUIPMENT AND DUCTS A. General: Unless otherwise specified insulate air handling and air distribution equipment. B. Ventilation System Locations Insulated: Install insulation for ventilating systems with leaving temperature less than 90 degrees F. in the following locations and as indicated: 1. Ducts and apparatus from outdoor (outside, fresh) air intakes to supply fan inlet connection for fans located outside duct or casing. Entire casing shall be insulated where fan is located within casing. 2. Supply ducts in unheated spaces immediately bellow roof and in unexcavated spaces. 3. Heating coil enclosures. C. Air Heating System Locations Insulated: Install insulation for all heating systems with leaving air temperatures of 90 F. or more in the following locations and as indicated: 1. Ducts end apparatus from outdoor (outside, fresh) air intakes to supply terminals 2. Return air ducts in unheated spaces immediately below roof and in unexcavated spaces. 3. Heating coil enclosures and external headers. D. Exhaust System Locations Insulated: Install insulation for exhaust systems in the following locations and as indicated: 1. Range and oven hood exhaust ducts. E. Air Conditioning System Locations Insulation: Install insulation for air conditioning systems of all types, velocities and pressures, in the following locations and as indicated: 1. All ducts from outdoor (outside, fresh) air intakes to room supply terminals, including all casings, apparatus, sheet metal plenum chambers, bypasses, and mixing boxes. 2. Return ducts in finished spaces not provided with conditioned supply air. 3. Return ducts concealed in ceilings below roof, and in furred spaces adjoining any areas not provided with conditioned supply air. 4. Return ducts concealed in shafts with supply ducts and piping. 5. All factory prefabricated sound absorbers shall be insulated. MECHANICAL INSULATION

19 F. Locations Not Insulated: Do not install insulation in the following locations. 1. Fibrous glass ductwork 2. Ducts, casings and air handling units where internal insulation or sound absorbing linings are specified under other sections of the specification. 3. Fan name plates, access plates in fan housings and ducts. Frame insulation termination s with 22 gauge sheetmetal frames with hemmed edges. 4. Insulated flexible ductwork specified under other sections of the specifications. G. Oven and Range Hood: Insulate even and range hood exhaust ducts with 2-inch thick blocks or boards, either fiberglass (ASTM C 612, Class 5), calcium silicate (ASTM C 552) or nominal density fiberglass block (ASTM C 612, Class 4). Install the insulation with bands or wires spaced not over 9 inches on centers or with heavy welded pins spaced not over 12 inches apart each way. Do not use adhesives. H. Air Handling and Air Distribution Equipment and Ducts: Provide insulation for air handling and air distribution equipment and apparatus (except oven and range hood exhaust ducts) of rigid blocks or boards with a minimum dimension of 12 inches and a maximum dimension of 48 inches, except as follows: 1. Insulation for circular ducts exposed in finished spaces and less than 24 inches in diameter shall be preformed pipe insulation of materials and application as specified under "Insulation for Low Temperature Piping" article, of this Section, and 1-1/2-inch thick 2. Insulation for circular ducts exposed in finished spaces and 24 inches or over in diameter shall be rigid blocks or boards or preformed pipe insulation. The preformed or block insulation shall be sized or cut, beveled, and scored to provide a complete and tight fit to the duct surface. Thickness shall be 1-1/2 inches. 3. Insulation for concealed ducts shall be either rigid blocks or boards or preformed insulation as specified in Table 2 or fiberglass flexible insulation and 1-1/2 inches thick 4. Supply side channels and yokes of air-handling troffers which are not factory insulated shall be insulated as specified for the connecting ductwork, except that the as-installed thickness shall be not less than 1/2-inch. 5. Equipment, casings and apparatus in machine, fan, equipment rooms and penthouse equipment rooms shall be minimum 2 inches thick I. Block and Board Insulation: Install block and board insulation as follows: 1. Secure block and board insulation tightly and smoothly with not less than 50 percent coverage of bonding adhesive, Category 3, and with galvanized steel, aluminum, brass, or nickel copper alloy bands spaced not more than 12 inches apart. Protect the insulation under bands at comers with metal corner angles. On flat surfaces more than 30 inches wide, provide metal supports of same height as insulation and spaced not more than 24 inches apart. Provide the supports of either light angles or clips spot welded or otherwise securely attached to the duct or casing. Punch the supports with openings and pass the bands through these openings. After the insulation on air conditioning equipment and ducts is in place, fill all joints, seams and chipped edges with bedding compound, Category In lieu of securing the block and board insulation with adhesive and bands, secure the insulation tightly and smoothly with speed washers and welded pins. Space anchors or pins not over 18 inches apart each way, not over 3 inches from edges of insulation joints, and capable of supporting a load of 20 pounds per anchor or pin. Apply insulation with all joints in close mechanical contact and all open joints, breaks, punctures and voids in insulation on air conditioning equipment and ducts filled with vapor barrier coating compound, Category 5. Where anchors or pins are welded to ducts, use a welding procedure which will not distort the duct, will not burn through or mar the interior finish of the duct, but which will develop the full strength of the anchor. Provide anchor and pin sizes and diameters as recommended by the manufacturer for the type and thickness of the insulation specified. MECHANICAL INSULATION