MEP Specification Index

Transcription

1 MEP Specification Index Division 15 Pages SECTION BASIC MECHANICAL REQUIREMENTS 15010/1 5 SECTION BASIC MECHANICAL MATERIALS AND METHODS 15050/1 9 SECTION HANGERS AND SUPPORTS 15060/1 4 SECTION MECHANICAL INSULATION 15080/1 2 SECTION VALVES 15110/1 4 SECTION DOMESTIC WATER PIPING 15140/1 6 SECTION SANITARY WASTE AND VENT PIPING 15150/1 5 SECTION REFRIGERANT PIPING 15183/1 4 SECTION FUEL GAS PIPING 15194/1 5 SECTION PLUMBING FIXTURES 15410/1 9 SECTION PLUMBING SPECIALTIES 15430/1 7 SECTION PACKAGED ROOFTOP MAKE-UP AIR UNITS 15780/1 12 SECTION ROOFTOP UNITS 15781/1 10 SECTION VRV INDOOR UNITS 15782/1 10 SECTION VRV OUTDOOR UNITS 15783/1 10 SECTION METAL DUCTS 15815/1 6 SECTION DUCT ACCESSORIES 15820/1 8 SECTION POWER VENTILATORS 15838/1 6 SECTION AIR OUTLETS AND INLETS 15855/1 5 SECTION TESTING, ADJUSTING, AND BALANCING 15990/1 3 Division 16 Pages SECTION BASIC ELECTRICAL REQUIREMENTS 16010/1 5 SECTION BASIC ELECTRICAL MATERIALS AND METHODS 16050/1 10 SECTION RACEWAYS AND BOXES 16130/1 6 SECTION WIRING DEVICES 16140/1 4 SECTION ENCLOSED SWITCHES AND CIRCUIT BREAKERS 16410/1 4 SECTION PANELBOARDS 16442/1 5 SECTION LIGHTING FIXTURES 16510/1 10 SECTION LIGHTING CONTROL DEVICES 16520/1 4 SECTION MULTIPLEX FIRE ALARM SYSTEM 16721/1 13 SECTION SCHOOL INTERCOM SYSTEMS 16765/1 4

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3 SECTION BASIC MECHANICAL REQUIREMENTS PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this and the other sections of Division 15. B. Related Sections: The following Division 15 sections contain requirements that relate to this section: 1. Basic Mechanical Materials and Methods, for materials and methods common to the remainder of Division 15, plus general related specifications including: a. Access to mechanical installations. b. Excavation for mechanical installations within the building boundaries, and from building to utilities connections. 1.2 SUMMARY A. This Section includes general administrative and procedural requirements for mechanical installations. The following administrative and procedural requirements are included in this Section to expand the requirements specified in Division 1: 1. Submittals. 2. Record documents. 3. Maintenance manuals. 4. Rough-ins. 5. Mechanical installations. 6. Cutting and patching. 7. Temporary heating, ventilating and air conditioning. 8. Substitutions. 1.3 QUALITY ASSURANCE A. Comply with IBC International Building Code for plumbing and mechanical materials, components, and installations. B. Comply with IPC International Plumbing Code for plumbing materials, components, and installations. C. Comply with IMC International Mechanical Code mechanical materials, components, and installations. D. NFPA Compliance: Components and installation shall comply with the following where applicable: 1. NFPA 90A - Installation of Air Conditioning and Ventilating Systems. 2. NFPA Life Safety Code. BASIC MECHANICAL REQUIREMENTS

4 1.4 SUBMITTALS A. General: Follow the procedures specified in Division 1 Section Submittals. B. Increase the number of mechanical related shop drawings, product data, and samples submitted, to allow for required distribution plus one copy of each submittal required, which will be retained by the Mechanical Consulting Engineer. C. Additional copies may be required by individual sections of these Specifications. 1.5 RECORD DOCUMENTS A. Prepare record documents in accordance with the requirements in Division 1 Section Project Closeout. In addition to the requirements specified in Division 1, indicate the following installed conditions: 1. Ductwork mains and branches, size and location, for both exterior and interior; locations of dampers and other control devices; filters, boxes, and terminal units requiring periodic maintenance or repair. 2. Mains and branches of piping systems, with valves and control devices located and numbered, concealed unions located, and with items requiring maintenance located (i.e., traps, strainers, expansion compensators, tanks, etc.). Valve location diagrams, complete with valve tag chart. Refer to Division 15 Section Mechanical Identification. Indicate actual inverts and horizontal locations of underground piping. 3. Equipment locations (exposed and concealed), dimensioned from prominent building lines. 4. Approved substitutions, Contract Modifications, and actual equipment and materials installed. 1.6 OPERATION AND MAINTENANCE MANUALS A. Prepare three (3) bound Operation and Maintenance Manuals in accordance with Division 1 Section Project Closeout. In addition to the requirements specified in Division 1, include the following information for equipment items: 1. Description of function, normal operating characteristics and limitations, performance curves, engineering data and tests, complete nomenclature and commercial numbers of replacement parts and complete parts listing with part name and number. 2. Manufacturer's printed operating procedures to include start-up, break-in, and routine and normal operating instructions; regulation, control, stopping, shutdown, and emergency instructions; and summer and winter operating instructions. 3. Maintenance procedures for routine preventative maintenance and troubleshooting; disassembly, repair, and reassembly; aligning and adjusting instructions. 4. Servicing instructions and lubrication charts and schedules. 5. Reviewed shop drawings and submittals. 6. Record of spare parts provided to Owner with a signature of receipt by Owner's representative. 1.7 DELIVERY, STORAGE, AND HANDLING A. Deliver products to the project properly identified with names, model numbers, types, grades, compliance labels, and other information needed for identification. B. Deliver products in factory-fabricated type containers or wrappings which properly protect BASIC MECHANICAL REQUIREMENTS

5 product from damage. C. Store products indoors in clean, dry space in original containers. Protect products from weather, construction traffic and debris. When necessary to store outdoors, take similar precautions and store above grade and enclose with waterproof covering. D. Handle products carefully to prevent physical damage. Do not install damaged products; replace damaged products with new. PART 2 - PRODUCTS 2.1 GENERAL A. All equipment and material provided shall be lead paint free and asbestos free. PART 3 - EXECUTION 3.1 ROUGH-IN A. Verify final locations for rough-ins with field measurements and with the requirements of the actual equipment to be connected. B. Refer to equipment specifications in Divisions 2 through 16 for rough-in requirements. 3.2 MECHANICAL INSTALLATIONS A. General: Sequence, coordinate, and integrate the various elements of mechanical systems, materials, and equipment. Comply with the following requirements: 1. Coordinate mechanical systems, equipment, and materials installation with other building components. 2. Verify all dimensions by field measurements. 3. Arrange for chases, slots, and openings in other building components during progress of construction, to allow for mechanical installations. 4. Coordinate the installation of required supporting devices and sleeves to be set in poured-in-place concrete and other structural components, as they are constructed. 5. Sequence, coordinate, and integrate installations of mechanical materials and equipment for efficient flow of the Work. Give particular attention to large equipment requiring positioning prior to closing in the building. 6. Where mounting heights are not detailed or dimensioned, install systems, materials, and equipment to provide the maximum headroom possible. 7. Coordinate connection of mechanical systems with exterior underground and overhead utilities and services. Comply with requirements of governing regulations, franchised service companies, and controlling agencies. Provide required connection for each service. 8. Install systems, materials, and equipment to conform with reviewed submittal data, including coordination drawings, to greatest extent possible. Conform to arrangements indicated by the Contract Documents, recognizing that portions of the Work are shown only in diagrammatic form. Where coordination requirements conflict with individual system requirements, refer conflict to the Architect. 9. Install systems, materials, and equipment level and plumb, parallel and perpendicular to other building systems and components, where installed exposed in finished spaces. BASIC MECHANICAL REQUIREMENTS

6 10. Install mechanical equipment to facilitate servicing, maintenance, and repair or replacement of equipment components. As much as practical, connect equipment for ease of disconnecting, with minimum of interference with other installations. Extend grease fittings to an accessible location. 11. Install access panels or doors where units are concealed behind finished surfaces. 12. Install systems, materials, and equipment giving right-of-way priority to systems required to be installed at a specified slope. 3.3 EQUIPMENT ELECTRICAL CONNECTIONS A. Electrical: Conform to applicable requirements in Division 16 Sections. B. Grounding: Ground equipment. Tighten electrical connectors and terminals, including grounding connections, according to manufacturer s published torque tightening valves. Where manufacturer s torque valves are not indicated, use those specified in UL 486A and UL 486B. C. Provide all accessories required for complete installation of equipment provided in Division 15 Sections. Mount accessories in appropriate locations to insure access and proper operation. Accessories include equipment control panels, solenoid valves, aqua-stats, flow switches and similar devices. D. Arrange for the project electrical contractor to install all control wiring in conduit associated with any accessories provided in Division 15 Sections. Mechanical contractor is responsible for the cost of the electrical installation and for providing all equipment control wiring diagrams to the electrical contractor to insure proper connections. Control diagrams shall clearly identify factory-installed wiring and field-installed wiring. In the absence of a temperature control contractor, the mechanical contractor shall include any wiring associated with temperature control devices with the wiring to be installed by the electrical contractor. 3.4 CUTTING AND PATCHING A. General: Perform cutting and patching in accordance with Division 1 Section Cutting and Patching. In addition to the requirements specified in Division 1, the following requirements apply: 1. Perform cutting, fitting, and patching of mechanical equipment and materials required to: a. Uncover Work to provide for installation of ill-timed Work. b. Remove and replace defective Work. c. Remove and replace Work not conforming to requirements of the Contract Documents. d. Remove samples of installed Work as specified for testing. e. Install equipment and materials in existing structures. f. Upon written instructions from the Architect, uncover and restore Work to provide for Architect/Engineer observation of concealed Work. 2. Cut, remove and legally dispose of selected mechanical equipment, components, and materials as indicated, including but not limited to removal of mechanical piping, heating units, plumbing fixtures and trim, and other mechanical items made obsolete by the new Work. 3. Protect the structure, furnishings, finishes, and adjacent materials not indicated or scheduled to be removed. 4. Provide and maintain temporary partitions or dust barriers adequate to prevent the spread of dust and dirt to adjacent areas. 5. Protection of Installed Work: During cutting and patching operations, protect adjacent installations. BASIC MECHANICAL REQUIREMENTS

7 6. Patch finished surfaces and building components using new materials specified for the original installation and experienced Installers. Installers' qualifications refer to the materials and methods required for the surface and building components being patched. 3.5 TEMPORARY HEATING, VENTILATING AND AIR CONDITIONING A. General: The new heating, ventilating and air conditioning systems SHALL NOT be utilized during construction or prior to Substantial Completion. All system components (i.e. equipment, ductwork) shall be protected from dust and dirt prior to Substantial Completion. Prior to start-up of system, all system components (i.e. equipment, ductwork) shall be thoroughly cleaned and vacuumed inside and outside. All equipment air filters shall be replaced with materials other than those supplied to the Owner as Extra Materials. B. Special and unusual circumstances may allow requests by the Contractor to utilize the permanent HVAC system for heating, ventilating, and air conditioning prior to Substantial Completion. If such a request is granted, it is understood that this in no way affects the guarantees, which become effective at the time of Substantial Completion. It is understood that if the new HVAC system is utilized prior to Substantial Completion, all system components (i.e. equipment, ductwork) shall be thoroughly cleaned and vacuumed inside and outside, and all filters will be replaced. Replacement filters are not to be taken from any extra materials required by other sections of these specifications. 3.6 SUBSTITUTIONS A. General: All changes and additional work required by this Contractor or any other Contractor because of a substitution of an equivalent piece of equipment by this Contractor shall be the responsibility of this Contractor. Substitutions will only be considered when the quality of the product is maintained and it is advantageous to the Owner to consider. B. Requests for approval to bid equipment by a manufacturer not listed in these specifications must be received by A/E, in written form, a minimum of ten (10) calendar days prior to bid date. 3.7 UTILITY SERVICE CONNECTIONS A. Coordinate all utility service connections with local utility and comply with all requirements of that utility. 3.8 CLEANING A. All equipment and installed materials shall be cleaned inside and outside. All construction dust and loose materials shall be removed. Any printed information attached to the equipment shall be removed and included in the Operation and Maintenance Manuals. Equipment nameplates shall NOT be removed. Any scratched paint surfaces shall be repaired with manufacturer's touch-up paint. END OF SECTION BASIC MECHANICAL REQUIREMENTS

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9 SECTION BASIC MECHANICAL MATERIALS AND METHODS PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. B. Requirements specified in Division 15 Section Basic Mechanical Requirements apply to this Section. 1.2 SUMMARY A. This Section includes the following basic mechanical materials and methods to complement other Division 15 Sections and for application with mechanical installations. 1. Piping materials and installation instructions common to most piping systems. 2. Concrete equipment bases. 3. Escutcheons. 4. Flexible connectors. 5. Mechanical sleeve seals. 6. Equipment nameplate data requirements. 7. Mechanical identification. 8. Nonshrink grout for equipment installations. 9. Field-fabricated metal and wood equipment supports. 10. Installation requirements common to equipment specification sections. 11. Mechanical demolition. 12. Cutting and patching. 13. Touchup painting and finishing. 14. Excavation for underground utilities and services, including underground pipes and equipment. 15. Joint sealers for sealing around mechanical materials and equipment; and for sealing penetrations in fire and smoke barriers, floors, and foundation walls. 16. Access panels and doors in walls, ceilings, and floors for access to mechanical materials and equipment. B. Pipe and pipe fitting materials are specified in Division 15 piping system Sections. 1.3 SUBMITTALS A. General: Submit the following according to the Conditions of the Contract and Division 15 Section Basic Mechanical Requirements. B. Shop Drawings: Detail fabrication and installation for metal and wood supports and anchorage for mechanical materials and equipment. C. Schedules indicating proposed methods and sequence of operations for selective demolition prior to commencement of work. Include coordination for shut-off of services, and details for dust and noise control. BASIC MECHANICAL MATERIALS AND METHODS

10 1.4 QUALITY ASSURANCE A. Comply with ASME A13.1 for lettering size, length of color field, colors, and viewing angles of identification devices. B. Equipment Selection: Equipment of higher electrical characteristics, physical dimensions, capacities, and ratings may be furnished provided such proposed equipment is approved in writing and connecting mechanical and electrical services, circuit breakers, conduit, motors, bases, and equipment spaces are increased. If minimum energy ratings or efficiencies of equipment are specified, equipment must meet design and commissioning requirements. C. Fire-Resistance Ratings: Where a fire-resistance classification is indicated, provide access door assembly with panel door, frame, hinge, and latch frame manufacturer listed in the UL "Building Materials Directory" for rating shown. 1.5 DELIVERY, STORAGE, AND HANDLING A. Deliver pipes and tubes with factory-applied end caps. Maintain end caps through shipping, storage, and handling to prevent pipe end damage and prevent entrance of dirt, debris, and moisture. B. Protect stored pipes and tubes from moisture and dirt. Elevate above grade. Do not exceed structural capacity of floor, if stored inside. C. Protect flanges, fittings, and piping specialties from moisture and dirt. D. Store plastic pipes protected from direct sunlight. Support to prevent sagging and bending. 1.6 SEQUENCING AND SCHEDULING A. Coordinate mechanical equipment installation with other building components. B. Arrange for pipe spaces, chases, slots, and openings in building structure during progress of construction to allow for mechanical installations. C. Coordinate installation of required supporting devices and set sleeves in poured-in-place concrete and other structural components, as they are constructed. D. Coordinate connection of mechanical systems with exterior underground and overhead utilities and services. Comply with requirements of governing regulations, franchised service companies, and controlling agencies. E. Coordinate requirements for access panels and doors if mechanical items requiring access are concealed behind finished surfaces. F. Coordinate installation of identifying devices after completing covering and painting, if devices are applied to surfaces. Install identifying devices before installing acoustical ceilings and similar concealment. 1.7 PROJECT CONDITIONS A. Conditions Affecting Selective Demolition: The following project conditions apply: BASIC MECHANICAL MATERIALS AND METHODS

11 1. Protect adjacent materials indicated to remain. Install and maintain dust and noise barriers to keep dirt, dust, and noise from being transmitted to adjacent areas. Remove protection and barriers after demolition operations are complete. 2. Locate, identify, and protect services passing through demolition area and serving other areas outside the demolition limits. Maintain services to areas outside demolition limits. When services must be interrupted, install temporary services for affected areas. B. Conditions Affecting Excavations: The following project conditions apply: 1. Maintain and protect existing building services which transit the area affected by selective demolition. 2. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout, and other hazards created by excavation operations. 3. Existing Utilities: Locate existing underground utilities in excavation areas. If utilities are indicated to remain, support and protect services during excavation operations. PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Subject to compliance with requirements, provide products by one of the following: 1. Access Doors: a. Bar-Co., Inc. b. J.L. Industries c. Karp Associates, Inc. d. Milcor Div. Inryco, Inc. e. Nystrom, Inc. 2. Elastomeric Joint Sealers: a. One-Part, Mildew-Resistant, Silicone Sealant: 1) "863 #345 White," Pecora Corp. 2) "Rhodorsil 6B White," Rhone-Poulenc, Inc. 3) "Proglaze White," Tremco Corp. 4) "OmniPlus," Sonneborn Building Products Div. 3. Fire-Resistant Joint Sealers: a. STI (Specified Technologies, Inc.) b. 3M Fire Protection Products c. IPC (International Protective Coatings Corp.) 2.2 PIPE AND PIPE FITTINGS A. Refer to individual Division 15 piping Sections for pipe and fitting materials and joining methods. B. Pipe Threads: ASME B for factory-threaded pipe and pipe fittings. 2.3 MECHANICAL SLEEVE SEALS BASIC MECHANICAL MATERIALS AND METHODS

12 A. Description: Modular design, with interlocking rubber links shaped to continuously fill annular space between pipe and sleeve. Include connecting bolts and pressure plates. 2.4 IDENTIFYING DEVICES AND LABELS A. General: Manufacturer's standard products of categories and types required for each application as referenced in other Division 15 Sections. If more than one type is specified for application, selection is Installer's option, but provide one selection for each product category. B. Equipment Nameplates: Metal nameplate with operational data engraved or stamped; permanently fastened to equipment. 1. Data: Manufacturer, product name, model number, serial number, capacity, operating and power characteristics, labels of tested compliances, and similar essential data. 2. Location: Accessible and visible location. C. Pressure-Sensitive Pipe Markers: Manufacturer's standard preprinted, permanent adhesive, color-coded, pressure-sensitive vinyl, complying with ASME A CONCRETE AND REINFORCEMENT MATERIALS A. Concrete: Portland cement, mix to a 3,000 psi, 28 day compressive strength. 1. Cement: ASTM C150, Type Fine Aggregate: ASTM C33, sand. 3. Coarse Aggregate: ASTM C33, crushed gravel. 4. Water: Potable. B. Reinforcement Fabric: ASTM A185, welded-wire fabric, plain. 2.6 ACCESS DOORS A. Steel Access Doors and Frames: Factory-fabricated and assembled units, complete with attachment devices and fasteners ready for installation. Joints and seams shall be continuously welded steel, with welds ground smooth and flush with adjacent surfaces. B. Frames: 16-gage steel, with a 1-inch-wide exposed perimeter flange for units installed in unit masonry, pre-cast, or cast-in-place concrete, ceramic tile, or wood paneling. 1. For installation in masonry, concrete, ceramic tile, or wood paneling: 1 inch-wide-exposed perimeter flange and adjustable metal masonry anchors. 2. For gypsum wallboard or plaster: perforated flanges with wallboard bead. 2.7 JOINT SEALERS A. General: Joint sealers, joint fillers, and other related materials compatible with each other and with joint substrates under conditions of service and application. B. Elastomeric Joint Sealers: Provide the following types: 1. One-part, mildew-resistant, silicone sealant complying with ASTM C 920, Type S, Grade NS, Class 25, for uses in non-traffic areas for glass, aluminum, and nonporous joint substrates; formulated with fungicide; intended for sealing interior joints with nonporous sub- BASIC MECHANICAL MATERIALS AND METHODS

13 strates; and subject to in-service exposure to conditions of high humidity and temperature extremes. C. Fire-Resistant Joint Sealers: Two-part, foamed-in-place, silicone sealant formulated for use in through-penetration fire-stopping around pipes, and duct penetrations through fire- rated walls and floors. Sealants and accessories shall have fire- resistance ratings indicated, as established by testing identical assemblies in accordance with ASTM E 814, by Underwriters' Laboratories, Inc., or other testing and inspection agency acceptable to authorities having jurisdiction. PART 3 - EXECUTION 3.1 PIPING SYSTEMS - COMMON REQUIREMENTS A. General: Install piping as described below, unless piping Sections specify otherwise. Individual Division 15 piping Sections specify unique piping installation requirements. B. General Locations and Arrangements: Drawing plans, schematics, and diagrams indicate general location and arrangement of piping systems. Install components with pressure rating equal to or greater than system operating pressure. C. Install piping free of sags and bends. D. Install exposed interior and exterior piping at right angles or parallel to building walls. Diagonal runs are prohibited, unless otherwise indicated. E. Install piping tight to slabs, beams, joists, columns, walls, and other building elements. Allow sufficient space above removable ceiling panels to allow for ceiling panel removal. F. Install piping to allow application of insulation plus 1-inch (25-mm) clearance around insulation. G. Locate groups of pipes parallel to each other, spaced to permit valve servicing. H. Install fittings for changes in direction and branch connections. I. Install couplings according to manufacturer's written instructions. J. Install pipe escutcheons for pipe penetrations of concrete and masonry walls, wall board partitions, and suspended ceilings according to the following: 1. Uninsulated Piping Floor Plates in Utility Areas: Cast-iron floor plates. 2. Insulated Piping: Cast brass or stamped steel; with concealed hinge, spring clips, and chrome-plated finish. 3. Piping in Utility Areas: Cast brass or stamped steel, with set-screw or spring clips. K. Install sleeves for pipes passing through concrete and masonry walls. L. Aboveground, Exterior-Wall, Pipe Penetrations: Seal penetrations using sleeves and mechanical sleeve seals. Size sleeve for 1-inch (25-mm) annular clear space between pipe and sleeve for installing mechanical sleeve seals. 1. Install steel pipe for sleeves smaller than 6 inches (150 mm) in diameter. M. Fire-Barrier Penetrations: Where applicable, maintain existing fire rating of walls, partitions, ceilings, and floors at pipe penetrations. Seal pipe penetrations with firestopping materials. BASIC MECHANICAL MATERIALS AND METHODS

14 N. Piping Joint Construction: Join pipe and fittings as follows and as specifically required in individual piping specification Sections: 1. Ream ends of pipes and tubes and remove burrs. Bevel plain ends of steel pipe. 2. Remove scale, slag, dirt, and debris from inside and outside of pipe and fittings before assembly. 3. Threaded Joints: Thread pipe with tapered pipe threads according to ASME B Cut threads full and clean using sharp dies. Ream threaded pipe ends to remove burrs and restore full ID. Join pipe fittings and valves as follows: a. Note internal length of threads in fittings or valve ends, and proximity of internal seat or wall, to determine how far pipe should be threaded into joint. b. Apply appropriate tape or thread compound to external pipe threads, unless dry seal threading is specified. c. Align threads at point of assembly. d. Tighten joint with wrench. Apply wrench to valve end into which pipe is being threaded. e. Damaged Threads: Do not use pipe or pipe fittings with threads that are corroded or damaged. Do not use pipe sections that have cracked or open welds. O. Piping Connections: Make connections according to the following, unless otherwise indicated: 1. Install unions, in piping 2-inch NPS (DN50) and smaller, adjacent to each valve and at final connection to each piece of equipment with 2-inch NPS (DN50) or smaller threaded pipe connection. 3.2 EQUIPMENT INSTALLATION - COMMON REQUIREMENTS A. Install equipment to provide maximum possible headroom, if mounting heights are not indicated. B. Install equipment according to approved submittal data. Portions of the Work are shown only in diagrammatic form. Refer conflicts to Engineer. C. Install equipment level and plumb, parallel and perpendicular to other building systems and components in exposed interior spaces, unless otherwise indicated. D. Install equipment giving right of way to piping installed at required slope. E. Install flexible connectors on equipment side of shutoff valves, horizontally and parallel to equipment shafts if possible. 3.3 LABELING AND IDENTIFYING A. Piping Systems: Install pipe markers on each system. Include arrows showing normal direction of flow. 1. Plastic markers, with application systems. Install on insulation segment if required for hot, uninsulated piping. B. Equipment: Install engraved plastic-laminate sign or equipment marker on or near each major item of mechanical equipment. 1. Lettering Size: Minimum 1/4-inch- (6.4-mm-) high lettering for name of unit if viewing distance is less than 24 inches (610 mm), ½-inch- (12.7-mm-) high lettering for distances up to 72 inches (1800 mm), and proportionately larger lettering for greater distances. Provide secondary lettering two-thirds to three-fourths of size of principal lettering. BASIC MECHANICAL MATERIALS AND METHODS

15 2. Text of Signs: Provide name of identified unit. Include text to distinguish between multiple units, inform user of operational requirements, indicate safety and emergency precautions, and warn of hazards and improper operations. C. Adjusting: Relocate identifying devices as necessary for unobstructed view in finished construction. 3.4 PAINTING AND FINISHING A. Apply paint to exposed piping according to the following, unless otherwise indicated: 1. Interior, Ferrous Supports: Use semigloss, acrylic-enamel finish. Include finish coat over enamel undercoat and primer. 2. Exterior, Ferrous Piping: Use semigloss, acrylic-enamel finish. Include two finish coats over rust-inhibitive metal primer. 3. Exterior, Ferrous Supports: Use semigloss, acrylic-enamel finish. Include two finish coats over rust-inhibitive metal primer. B. Damage and Touchup: Repair marred and damaged factory-painted finishes with materials and procedures to match original factory finish. 3.5 CONCRETE BASES A. Construct concrete equipment bases of minimum 3-½ inches thickness and dimensions indicated, or not less than 4 inches larger than supported unit in both directions. Follow supported equipment manufacturer s setting templates for anchor bolt and tie locations. Use 4000-psi, 28- day compressive strength concrete and reinforcement. Form concrete bases with framing lumber with form release compounds. Chamfer top edge and corners of base. B. Provide concrete equipment base for all floor or ground mounted equipment. 3.6 ERECTION OF METAL SUPPORTS AND ANCHORAGE A. Cut, fit, and place miscellaneous metal supports accurately in location, alignment, and elevation to support and anchor mechanical materials and equipment. 3.7 DEMOLITION A. Disconnect, demolish, and remove Work specified in Division 15 Sections. B. If existing pipe, ductwork, insulation, or equipment noted to remain is damaged or disturbed, remove damaged portions and install new products of equal capacity and quality. C. Accessible Work: Remove indicated exposed pipe and ductwork in its entirety. D. Work Abandoned in Place: Cut and remove underground pipe a minimum of 2 inches (50 mm) beyond face of adjacent construction. Cap and patch surface to match existing finish. E. Removal: Remove indicated equipment from Project site. F. Temporary Disconnection: Remove, store, clean, reinstall, reconnect, and make operational equipment indicated for relocation. BASIC MECHANICAL MATERIALS AND METHODS

16 3.8 CUTTING AND PATCHING A. Cut, channel, chase, and drill floors, walls, partitions, ceilings, and other surfaces necessary for mechanical installations. Perform cutting by skilled mechanics of trades involved. B. Repair cut surfaces to match adjacent surfaces. 3.9 EXCAVATION A. Trenching: Excavate trenches for electrical installations as follows: 1. Excavate trenches to the uniform width, sufficiently wide to provide ample working room and a minimum of 6 to 9 inches clearance on both sides of raceways and equipment. 2. Excavate trenches to depth indicated or required. 3. Limit the length of open trench to that in which installations can be made and the trench backfilled within the same day. 4. Where rock is encountered, carry excavation below required elevation and backfill with a layer of crushed stone or gravel prior to installation of raceways and equipment. Provide a minimum of 6 inches of stone or gravel cushion between rock bearing surface and electrical installations. B. Subsidence: Where subsidence occurs at trench locations during the period 12 months after Substantial Completion, remove surface treatment (i.e., pavement, lawn, or other finish), add backfill material, compact to specified conditions, and replace surface treatment. Restore appearance, quality, and condition of surface or finish to match adjacent areas PREPARATION AND APPLICATION OF JOINT SEALERS A. Surface Cleaning for Joint Sealers: Clean surfaces of joints immediately before applying joint sealers to comply with recommendations of joint sealer manufacturer. B. Apply joint sealer primer to substrates as recommended by joint sealer manufacturer. Protect adjacent areas from spillage and migration of primers, using masking tape. Remove tape immediately after tooling without disturbing joint seal. C. General: Comply with joint sealer manufacturers' printed application instructions applicable to products and applications indicated, except where more stringent requirements apply. 1. Comply with recommendations of ASTM C 962 for use of elastomeric joint sealants. D. Tooling: Immediately after sealant application and prior to time shinning or curing begins, tool sealants to form smooth, uniform beads; to eliminate air pockets; and to ensure contact and adhesion of sealant with sides of joint. Remove excess sealants from surfaces adjacent to joint. Do not use tooling agents that discolor sealants or adjacent surfaces or are not approved by sealant manufacturer. E. Installation of Fire-Stopping Sealant: Install sealant, including forming, packing, and other accessory materials, to fill openings around mechanical services penetrating floors and walls, to provide fire-stops with fire-resistance ratings indicated for floor or wall assembly in which penetration occurs. Comply with installation requirements established by testing and inspecting agency INSTALLATION OF ACCESS DOORS BASIC MECHANICAL MATERIALS AND METHODS

17 A. Set frames accurately in position and securely attached to supports, with face panels plumb and level in relation to adjacent finish surfaces. B. Adjust hardware and panels after installation for proper operation. C. Install access doors where required for access to any equipment which becomes concealed by other construction. Provide access door of adequate size to maintain and replace concealed equipment. END OF SECTION BASIC MECHANICAL MATERIALS AND METHODS

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19 SECTION HANGERS AND SUPPORTS PART 1- GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. B. Related Sections: The following Division 15 Sections contain requirements that relate to this Section. 1. Basic Mechanical Requirements. 2. Basic Mechanical Materials and Methods. 1.2 SUMMARY A. This Section includes hangers and supports for mechanical system piping and equipment. 1.3 DEFINITIONS A. MSS: Manufacturers Standardization Society for the Valve and Fittings Industry. B. Terminology: As defined in MSS SP-90, "Guidelines on Terminology for Pipe Hangers and Supports." 1.4 PERFORMANCE REQUIREMENTS A. Design channel support systems for piping to support multiple pipes capable of supporting combined weight of supported systems, system contents, and test water. 1.5 SUBMITTALS A. General: Submit the following in accordance with Conditions of Contract and Division 15 Section Basic Mechanical Requirements. B. Product Data: For each type of pipe hanger, channel support system component, and thermalhanger shield insert indicated. PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Subject to compliance with requirements, provide products by one of the following: 1. Pipe Hangers: a. B-Line Systems, Inc. b. Grinnell Corp. 2. Channel Support Systems: a. B-Line Systems, Inc. HANGERS AND SUPPORTS

20 b. Grinnell Corp.; Power-Strut Unit. c. Thomas & Betts Corp. d. Unistrut Corp. 3. Powder-Actuated Fastener Systems: a. Gunnebo Fastening Corp. b. Hilti, Inc. c. ITW Ramset/Red Head. d. Masterset Fastening Systems, Inc. e. Rawl. 4. Roof Pipe Stands: a. Miro Industries, Inc. 2.2 MANUFACTURED UNITS A. Pipe Hangers, Supports, and Components: MSS SP-58, factory-fabricated components. Refer to "Hanger and Support Applications" Article in Part 3 for where to use specific hanger and support types. 1. Galvanized, Metallic Coatings: For piping and equipment that will not have field-applied finish. B. Channel Support Systems: MFMA-2, factory-fabricated components for field assembly. 1. Coatings: Manufacturer's standard finish, unless bare metal surfaces are indicated. 2. Nonmetallic Coatings: On attachments for electrolytic protection where attachments are in direct contact with copper tubing. C. Roof Pipe Stands: Nylon roller situated in a polycarbonate resin seat. 2.3 MISCELLANEOUS MATERIALS A. Powder-Actuated Drive-Pin Fasteners: Powder-actuated-type, drive-pin attachments with pullout and shear capacities appropriate for supported loads and building materials where used. B. Mechanical-Anchor Fasteners: Insert-type attachments with pull-out and shear capacities appropriate for supported loads and building materials where used. C. Structural Steel: ASTM A 36/A 36M, steel plates, shapes, and bars, black and galvanized. D. Grout: ASTM C 1107, Grade B, factory-mixed and -packaged, nonshrink and nonmetallic, dry, hydraulic-cement grout. 1. Characteristics: Post hardening and volume adjusting; recommended for both interior and exterior applications. 2. Properties: Nonstaining, noncorrosive, and nongaseous. 3. Design Mix: 5000-psi (34.5-MPa), 28-day compressive strength. PART 3- EXECUTION 3.1 HANGER AND SUPPORT APPLICATIONS A. Comply with MSS SP-69 for pipe hanger selections and applications that are not specified in HANGERS AND SUPPORTS

21 piping system Specification Sections. B. Horizontal-Piping Hangers and Supports: Unless otherwise indicated and except as specified in piping system Specification Sections, install the following types: 1. Adjustable Steel Clevis Hangers (MSS Type 1): For suspension of noninsulated or insulated stationary pipes, NPS 1/2 to NPS 30 (DN15 to DN750). C. Vertical-Piping Clamps: Unless otherwise indicated and except as specified in piping system Specification Sections, install the following types: 1. Extension Pipe or Riser Clamps (MSS Type 8): For support of pipe risers, NPS 3/4 to NPS 20 (DN20 to DN500). D. Roof Pipe Stands: Unless otherwise indicated install the following type on built-up and single-ply roofing membranes. 1. Roller-Bearing Pipe Support: For support of pipes, NPS 3/4 to NPS 4 (DN 20 to DN 100) from nylon roller if longitudinal movement caused by expansion and contraction might occur, as well as some lateral. 3.2 HANGER AND SUPPORT INSTALLATION A. Pipe Hanger and Support Installation: Comply with MSS SP-69 and MSS SP-89. Install hangers, supports, clamps, and attachments as required to properly support piping from building structure. B. Channel Support System Installation: Arrange for grouping of parallel runs of piping and support together on field-assembled channel systems. 1. Field assemble and install according to manufacturer's written instructions. C. Roof Pipe Stand Installation: Install pipe stand as recommended by manufacturer to properly support piping on building structure and secure piping to pipe stand. Make certain each pipe stand is properly elevated to even load weight at all pipe stands. D. Install powder-actuated drive-pin fasteners in concrete after concrete is placed and completely cured. Use operators that are licensed by powder-actuated tool manufacturer. Install fasteners according to powder-actuated tool manufacturer's operating manual. E. Install hangers and supports complete with necessary inserts, bolts, rods, nuts, washers, and other accessories. E. Load Distribution: Install hangers and supports so that piping live and dead loads and stresses from movement will not be transmitted to connected equipment. 3.3 EQUIPMENT SUPPORTS A. Fabricate structural-steel stands to suspend equipment from structure above or to support equipment above grade. 3.4 METAL FABRICATION A. Cut, drill, and fit miscellaneous metal fabrications for heavy-duty steel trapezes and equipment supports. HANGERS AND SUPPORTS

22 B. Fit exposed connections together to form hairline joints. Field-weld connections that cannot be shop-welded because of shipping size limitations. 3.5 PAINTING A. Touching Up: Clean field welds and abraded areas of shop paint. Paint exposed areas immediately after erecting hangers and supports. Use same materials as used for shop painting. B. Comply with SSPC-PA 1 requirements for touching up field-painted surfaces. 1. Apply paint by brush or spray to provide a minimum dry film thickness of 2.0 mils (0.05 mm). C. Galvanized Surfaces: Clean welds, bolted connections, and abraded areas and apply galvanizing-repair paint to comply with ASTM A 780. END OF SECTION HANGERS AND SUPPORTS

23 SECTION MECHANICAL INSULATION PART 1 - GENERAL 1.1 SUMMARY A. This Section includes basic requirements for the installation of mechanical insulation. B. Refer to Section for ductwork insulation requirements. 1.2 SUBMITTALS A. Product Data for Mechanical Insulation: Schedule of insulation applications and thickness for each application and/or pipe size. PART 2 - PRODUCTS 2.1 GENERAL A. Insulation, Jackets, Adhesive, and Coatings Shall Comply with the following: 1. Treatment of jackets or facing for flame and smoke safety must be permanent. Watersoluble treatments not permitted. 2. Insulation, including finishes and adhesives on the exterior surfaces of ducts, pipes, and equipment, shall have a flame spread rating of 25 or less and a smoke development rating of 50 or less. 3. All elastomeric foam insulation install outdoors shall receive (2) coats of a white latex paint as recommended by the manufacturer to prevent sun damage. 2.2 MANUFACTURERS A. Provide mechanical insulation from one of the following manufacturers: 1. Armstrong 2. Johns-Manville 3. Knauf. 4. Owens-Corning 5. Approved Equal. 2.3 PIPE INSULATION A. Preformed rigid sectional pipe covering, 3-1/2-lb/ft3 nominal density. Maximum thermal conductivity (k), on a flat surface, shall be 0.24 Btu/sq. ft. F/in. at 75 F mean temperature. White Kraft outer surface bonded to aluminum foil and reinforced with fiberglass yarn (ASJ). B. Flexible, closed cell, elastomeric foam insulation, shall have a maximum thermal conductivity of 0.27 BTUH/In./h-ft2-deg.F at a mean temperature of 75 deg.f as tested in accordance with ASTM C 177 or ASTM C 518. Insulation shall have a flame spread index of less than 25 and a smoke developed index of less than 50 as tested in accordance with ASTM E84. Exterior insulation 2.4 MATERIALS AND SCHEDULES A. See Appendixes at the end of this section. MECHANICAL INSULATION

24 PART 3 - EXECUTION 3.1 GENERAL REQUIREMENTS A. Provide thermal insulation of piping, and equipment (as applicable) unless otherwise indicated. B. On clean, dry surfaces and after piping and equipment (as applicable) have been tested. C. All piping shall be individually insulated. D. Do not cover pipe joints with insulation until required tests are completed PIPE INSULATION A. Insulate piping systems including fittings, valves, flanges, unions, strainers, and other attachments installed in piping system, whether exposed or concealed. B. Hanger Shields: 1. Pre-Insulated Type: Butt insulation to hanger shields and apply a wet coat of vapor barrier cement to the joints and seal with 3 in. wide vapor barrier tape. C. Joints in section pipe covering made as follows: 1. Standard: Longitudinal laps and butt joint sealing strips with factory supplied pressure sensitive adhesive lap seal. 2. Vapor barrier: For cold services, Longitudinal laps and 4 in. vapor barrier strip at butt joints shall be sealed with white BF Seal ends of pipe insulation at valves, flanges, and fittings with white BF D. Fittings, Valves and Flanges: 1. Pre-molded fitting insulation of the same material and thickness as the adjacent pipe insulation mil thick white PVC jacketing, with continuous solvent weld of all seams. Tape all fittings. 3. Equal to Zeston 2000, or Proto System. 3.3 CLEANING A. After completing equipment installation, inspect unit components. Remove paint splatters and other spots, dirt, and debris. Repair damaged finish to match original finish. APPENDIX A PIPE INSULATION SCHEDULE Service Insulation Material Pipe Sizes Thickness Domestic Cold Water Fiberglass All 1/2 Domestic Hot Water Fiberglass All 1/2 and Hot Water Circ. Refrigerant Piping and Elastomeric All 3/4 Condensate Piping (all) Foam END OF SECTION MECHANICAL INSULATION

25 SECTION VALVES PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. B. Related Sections: The following Division 15 Sections contain requirements that relate to this Section. 1. Basic Mechanical Requirements. 2. Basic Mechanical Materials and Methods. 1.2 SUMMARY A. This Section includes the following general-duty valves: 1. Copper-alloy ball valves. 2. Bronze check valves. 1.3 SUBMITTALS A. General: Submit the following in accordance with Conditions of Contract and Division 15 Section Basic Mechanical Requirements. B. Product Data: For each type of valve indicated. Include body, seating, and trim materials; valve design; pressure and temperature classifications; end connections; arrangement; dimensions; and required clearances. Include list indicating valve and its application. Include rated capacities; shipping, installed, and operating weights; furnished specialties; and accessories. 1.4 QUALITY ASSURANCE A. ASME Compliance: ASME B31.9 for building services piping valves. 1. Exceptions: Domestic hot- and cold-water piping valves unless referenced. B. NSF Compliance: NSF 61 for valve materials for potable-water service. PART 2 - PRODUCTS 2.1 MANUFACTURERS VALVES

26 A. Subject to compliance with requirements, provide products by the manufacturers specified. 2.2 VALVES, GENERAL A. Refer to Part 3 "Valve Applications" Article for applications of valves. B. Bronze Valves: NPS 2 (DN 50) and smaller with threaded ends, unless otherwise indicated. C. Valve Pressure and Temperature Ratings: Not less than indicated and as required for system pressures and temperatures. D. Valve Sizes: Same as upstream pipe, unless otherwise indicated. E. Valve Actuators: 1. Lever Handle: For quarter-turn valves NPS 6 (DN 150) and smaller, except plug valves. F. Extended Valve Stems: On insulated valves. 2.3 COPPER-ALLOY BALL VALVES A. Available Manufacturers: B. Manufacturers: 1. Two-Piece, Copper-Alloy Ball Valves: a. Conbraco Industries, Inc.; Apollo Div. b. Crane Co.; Crane Valve Group; Crane Valves. c. Crane Co.; Crane Valve Group; Jenkins Valves. d. Crane Co.; Crane Valve Group; Stockham Div. e. Flow-Tek, Inc. f. Grinnell Corporation. g. Milwaukee Valve Company. h. Nexus Valve Specialties. i. NIBCO INC. j. Watts Industries, Inc.; Water Products Div. C. Copper-Alloy Ball Valves, General: MSS SP-110. D. Two-Piece, Copper-Alloy Ball Valves: Bronze body with full-port, chrome-plated bronze ball; PTFE or TFE seats; and 600-psig (minimum CWP rating and blowoutproof stem. 2.4 BRONZE CHECK VALVES A. Manufacturers: VALVES

27 1. Bronze, Horizontal Lift Check Valves with Metal Disc: a. Cincinnati Valve Co. b. Crane Co.; Crane Valve Group; Crane Valves. c. Crane Co.; Crane Valve Group; Stockham Div. d. Red-White Valve Corp. e. Walworth Co. B. Bronze Check Valves, General: MSS SP-80. C. Type 1, Class 125, Bronze, Horizontal Lift Check Valves: Bronze body with bronze disc and seat. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine piping system for compliance with requirements for installation tolerances and other conditions affecting performance. 1. Proceed with installation only after unsatisfactory conditions have been corrected. B. Examine valve interior for cleanliness, freedom from foreign matter, and corrosion. Remove special packing materials, such as blocks, used to prevent disc movement during shipping and handling. C. Operate valves in positions from fully open to fully closed. Examine guides and seats made accessible by such operations. D. Examine threads on valve and mating pipe for form and cleanliness. E. Examine mating flange faces for conditions that might cause leakage. Check bolting for proper size, length, and material. Verify that gasket is of proper size, that its material composition is suitable for service, and that it is free from defects and damage. F. Do not attempt to repair defective valves; replace with new valves. 3.2 VALVE APPLICATIONS A. Refer to piping Sections for specific valve applications. If valve applications are not indicated, use the following: 1. Shutoff Service: Ball valves. B. Domestic Water Piping: Use the following types of valves: 1. Ball Valves, NPS 4 (DN 50) and Smaller: Two-piece, 400-psig CWP rating, copper alloy. VALVES