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1 PARSONS BRINCKERHOFF NORTH TERMINAL PROJECT LOUIS ARMSTRONG NEW ORLEANS INTERNATIONAL AIRPORT NEW ORLEANS, LOUISIANA TRANSMITTAL COVER Date : 06/23/2016 Transmittal #: To: Company: HGBM Person: Document Control From: Company: PB Person: Jim Stievater Submitted on Behalf of: NOAB Document Title: GMP 15 Number of Copies: One (1) Electronic Document Attached: Align with GMP Action: Delivered Via: ~ No Cost/Time Impact. Proceed with the work indicated. Advise within 24 hours if there is any Cost or Time Impact. D Cost Decrease. Proceed with the work. Submit credit proposal for Review. D Cost Increase. Proceed with the work on a T&M Basis. Cost to be submitted when work is complete. D Cost Increase. Proceed with the work. Submit a proposal for review. D Cost Increase. Do not proceed with work. Submit proposal. D VE/Conformed Documents Implementation Comments: Attachment. Volume 6 Sec Construction Manager Approv~ CC: File ~ PB-Chris Spann Document DClawson@HGBM-JV.com 1, ~ ' :e-- ~ a'~ es T. Stievater- Parsons Brinckerhoff?/ 'r:3/:)0/(, Date

2 Louis Armstrong New Orleans International Airport North Terminal Development Program Phase 1 NOAB Project# SECTION HYDRONIC PIPING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including NOAB General Provisions and Division O l Specification Sections, apply to the work specified in this Section. 1.2 SUMMARY A. Section includes pipe and fitting materials and joining methods for the following: 1. Hot-water heating piping. 2. Chilled-water piping. 3. Dual-temperature heating and cooling water piping. 4. Condenser-water piping. 5. Makeup-water piping. 6. Condensate-drain piping. 7. Blowdown-drain piping. 8. Air-vent piping. 9. Safety-valve-inlet and -outlet piping. B. Related Sections include the following: 1. Division 23 Section "Hydronic Pumps" for pumps, motors, and accessories for hydronic prpmg. 2. Division 23 Section "HV AC Piping Insulation". 3. Division 23 Sections "Ball Valves For HV AC Piping", "Butterfly Valves For HV AC Piping", "Gate Valves For HV AC Piping", "Globe Valves For HVAC Piping", "Plug Valves For HV AC Piping", and "Check Valves For HV AC Piping". 4. Division 23 Section "HV AC Water treatment". 5. Division 23 Section "Vibration Controls for HV AC". C. Definitions 1. PTFE: Polytetrafluoroethylene. 2. RTRF: Reinforced thermosetting resin (fiberglass) fittings. 3. RTRP: Reinforced thermosetting resin (fiberglass) pipe. 4. DWV: Drain-Waste-Vent piping system. 1.3 SUBMITT ALS A. Action Submittals 1. Product Data: Submit manufacturer's standard technical product data indicating conformance to the stipulated reference specifications, construction materials, dimensions, Construction Documents Hydronic Piping Issued for Construction - 02/08/16 (Conformed 04/05/16) Page 1 of 18

3 NOAB Project# Louis Armstrong New Orleans International Airport N01th Terminal Development Program Phase 1 construction details, and test and operating pressures. Submit manufacturer's product data on the following: a. Pipe materials. b. Unions and flanges, including gaskets, nuts, and bolts. c. Welding fittings. d. Sleeves and packings. e. Plastic pipe and fittings with solvent cement. f. RTRP and RTRF with adhesive. g. Pressure-seal fittings. h. Air control devices. 1. Chemical treatment. B. Delegated-Design Submittal: 1. Design calculations and detailed fabrication and assembly of pipe anchors and alignment guides, hangers and supports for multiple pipes, expansion joints and loops, and attachments of the same to the building structure. 2. Locations of pipe anchors and alignment guides and expansion joints and loops. 3. Locations of and details for penetrations, including sleeves and sleeve seals for exterior walls, floors, basement, and foundation walls. 4. Locations of and details for penetration and firestopping for fire- and smoke-rated wall and floor and ceiling assemblies. C. Shop Drawings: Provide piping layout drawings, drawn to a scale of not less than 1/4 inch to l ft. showing the proposed layout of piping system including valves, fittings, equipment, pumps, hangers, grading, high points, low points, drain points, guides, anchors, ball joints, and expansion devices. Piping below 3 inches show single line, all 3 inches and above show double line. Coordination Drawings: Show double line at 3/8 inch to 1 ft. Calculations required for stressed piping at anchors. Provide shop drawings for the following locations: 1. Refrigeration rooms. 2. Cooling towers. 3. Boiler rooms. 4. Air handling equipment rooms. 5. Pipe shafts. 6. Cooling coils. 7. Heating coils. 8. Boilers. 9. Refrigeration machines. 10. Heat exchangers. 11. All floor plans and roof plans. D. 3-D Shop Drawings: Page2ofl8 Hydronic Piping Construction Documents Issued for Construction - 02/08/ 16 (Conformed 04/05/16)

4 Louis Armstrong New Orleans International Airport North Tenninal Development Program Phase l NOAB Project# l. The contractor shall submit at the same time with floor plan sheet metal and piping shop drawings submittals, 3-D models for all Terminal, Concourse and Utility Plant Mechanical Chiller and Boiler rooms. Contractor shall include all equipment, ductwork and piping connections in 3-D views. Due to the complexity of the project and mechanical rooms, 2D submittals and sections in plan only are not sufficient for submittal approval. MER 3-D model shall be submitted using Revit, AutoCAD 3D, Navisworks, dynamic 3-D PDF or any other BIM software. E. Schedules: 1. Submit schedule of pipe type and rating for each system. F. Informational Submittals 1. Coordination Drawings: Piping layout, drawn to scale, on which the following items are shown and coordinated with each other, using input from installers of the items involved: a. Suspended ceiling components. b. Other building services. c. Structural members. 2. Qualification Data: For Installer. 3. Welding certificates. 4. Field quality-control reports. 5. Water Analysis: Submit a copy of the water analysis to illustrate water quality available at Project site. 1.4 QUALITY ASSURANCE A. Codes and Standards: Provide piping conforming to the requirements of the following: 1. American Society of Mechanical Engineers (ASME): a. B 16. l: Cast iron pipe flanges and flanged fittings Class 25, 125, 250, and 800. b. B16.4: Cast iron threaded fittings Classes 125 and 250. c. B16.3: Malleable iron threaded fittings. d. B 16.5: Pipe flanges and flanged fittings. e. Bl6.9: Factory-made wrought steel buttwelding fittings. f. B 16. l: Forged steel fittings, socket-welding and threaded. g. B 16.18: Cast copper alloy solder joint pressure fittings. h. Bl6.22: Wrought copper and copper alloy solder joint pressure fittings. 1. B16.39: MalleableironthreadedpipeunionsClasses 150. J. B3 l: Code for pressure piping. k. B3 l. l: Power piping. 2. Installation of piping shall conform to the requirements of ASME B3 l.1 "Power Piping." 3. American Society for Testing and Materials (ASTM): Construction Documents Hydronic Piping Page 3 of 18 Issued for Construction - 02/08/ 16 (Conformed 04/05/16)

5 NOAB Project# Louis Annstrong New Orleans International Airport North Tenninal Development Program Phase 1 a. A 53: Standard specification for pipe, steel, black and hot-dipped, zinc-coated welded seamless. b. A 106: Standard specification for seamless carbon steel pipe for high-temperature service. c. A 126: Standard specification for gray iron castings for flanges, and pipe fittings. d. A 193/ A 193M: Standard specification for alloy-steel and stainless steel bolting materials for high-temperature service. e. A 194/A 194M: Standard specification for carbon and alloy steel nuts for bolts for high-pressure and high-temperature service. f. A 216/ A 216M: Standard specification for steel castings, carbon, suitable for fusion welding for high-temperature service. g. A 276: Standard specification for stainless and heat-resisting steel bars and shapes. h. A 307: Standard specification for carbon steel bolts and studs, 60,000 psi tensile strength. 1. B 88: Standard specification for seamless copper water tube. B. Codes and Standards: Provide hydronic specialties conforming to the requirements of the following: 1. Published specifications' standards, tests or recommended methods of trade, industry or governmental organizations apply to work in this section. 2. Comply with all applicable national, state, and local codes and refer to Section "General Provisions" for mechanical for additional Reference Standards. 3. In addition, comply with all standards or associations as specified herein including, but not limited to, the following, as applicable: a. American Society for Mechanical Engineers (ASME). b. American Society for Testing and Materials (ASTM). c. American National Standards Institute (ANSI). C. Installer Qualifications: 1. Installers of Pressure-Sealed Joints: Installers shall be certified by pressure-seal joint manufacturer as having been trained and qualified to join piping with pressure-seal pipe couplings and fittings. 2. Fiberglass Pipe and Fitting Installers: Installers of RTRF and RTRP shall be certified by manufacturer of pipes and fittings as having been trained and qualified to join fiberglass piping with manufacturer-recommended adhesive. D. Steel Support Welding: Qualify procedures and personnel according to AWS Dl.1/Dl.lM, "Structural Welding Code - Steel." E. Pipe Welding: Qualify procedures and operators according to ASME Boiler and Pressure Vessel Code: Section IX. 1. Comply with ASME B31.9, "Building Services Piping," for materials, products, and installation Page 4 of 18 Hydronic Piping Construction Documents Issued for Construction - 02/08/ 16 (Conformed 04/05/16)

6 Louis Armstrong New Orleans International Airport N01th Terminal Development Program Phase 1 NOAB Project# Certify that each welder has passed A WS qualification tests for welding processes involved and that certification is current. PART 2 - PRODUCTS 2.1 PERFORMANCE REQUIREMENTS A. Hydronic piping components and installation shall be capable of withstanding the following minimwn working pressw e and temperature unless otherwise indicated: 1. Hot-Water Heating Piping: 150 psig at 200 deg F. 2. Chilled-Water Piping: 150 psig at 200 deg F. 3. Dual-Temperature Heating and Cooling Water Piping: 150 psig at 200 deg F. 4. Condenser-Water Piping: 150 psig at 150 deg F. 5. Makeup-Water Piping: 80 psig at 150 deg F. 6. Condensate-Drain Piping: 150 deg F. 7. Blowdown-Drain Piping: 200 deg F. 8. Air-Vent Piping: 200 deg F. 9. Safety-Valve-Inlet and -Outlet Piping: Equal to the pressure of the piping system to which it is attached. 2.2 NOT USEDLIMITED AREA OF USE FOR GROOVED PIPE FITTINGS A. Grooved fittings shall not be used in_ eritieal areas. l. Critieal areas are defined as follows: a. CUP (Central Utility Plant) b. Buried piping between CUP and Terminal. e. SSCP Cheekpoint d. IT Rooms e. Communieation Rooms f. Radio & Aateflfla Comm Rooms g. Electrical Rooms and closets h. Above ceilings in pliblic areas. 1. Above electrical equipmeh:t.. Ticketing Areas k. CBP (Custom and Border Patrol Areas) 1. Baggage Claim A.reas m. Hold Rooms n. CBIS o. Server Rooms Construction Docwnents Hydronic Piping Issued for Construction ~ 02/08/16 (Conformed 04/05/16) Page 5 of 18

7 NOAB Project# 89I Louis Armstrong New Orleans International Airport North Terminal Development Program Phase I p. BMS/FMS Coetrol Rooms B. Grooved fittings may be 1:1sed ir nob critical areas. 1. Non Critical areas are defined as follows: a. Non p1:1blie areas s1:1ch as baek of ho1:1se areas, Airline OP8, Unimproved Areas. b. MER (Mechanical equipment rooms), e1rnept CUP C. No grooved fittmgs shall be 1:1sed in the CUP area. 2.3 COPPER TUBE AND FITTINGS A. Drawn-Temper Copper Tubing: ASTM B 88, Type L grooved piping. B. Annealed-Temper Copper Tubing: ASTM B 88, Type K. C. DWV Copper Tubing: ASTM B 306, Type DWV. D. Grooved, Mechanical-Joint, Wrought-Copper Fittings: ASME B Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. Anvil International, Inc. b. S.P. Fittings; a division of Star Pipe Products. c. Victaulic Company of America. 2. Grooved-End Copper Fittings: ASTM B 75, copper tube or ASTM B 584, bronze casting. 3. Grooved-End-Tube Couplings: Rigid pattern unless otherwise indicated; gasketed fitting. Ductile-iron housing with keys matching pipe and fitting grooves, prelubricated EPDM gasket rated for minimum 230 deg F for use with housing, and steel bolts and nuts. E. Wrought-Copper Unions: ASME B STEEL PIPE AND FITTINGS A. Steel Pipe: ASTM A 53/A 53M, black steel with plain ends; welded and seamless, Grade B, and wall thickness as indicated in "Piping Applications" Aiticle. B. Cast-Iron Threaded Fittings: ASME B 16.4; Classes 125 and 250 as indicated in "Piping Applications" Aiticle. C. Malleable-Iron Threaded Fittings: ASME Bl6.3, Classes 150 as indicated in "Piping Applications" Aiticle. D. Malleable-Iron Unions: ASME B16.39; Classes 150 as indicated in "Piping Applications" Aiticle. E. Cast-Iron Pipe Flanges and Flanged Fittings: ASME B 16.1, Classes 25, 125, and 250; raised ground face, and bolt holes spot faced as indicated in "Piping Applications" Aiticle. F. Wrought-Steel Fittings: ASTM A 234/A 234M, wall thickness to match adjoining pipe. G. Wrought Cast- and Forged-Steel Flanges and Flanged Fittings: ASME Bl6.5, including bolts, nuts, and gaskets of the following material group, end connections, and facings: 1. Material Group: End Connections: Butt welding Page 6 of 18 Hydronic Piping Construction Documents Issued for Construction - 02/08/16 (Conformed 04/05/16)

8 Louis Armstrong New Orleans International Airport North Terminal Development Program Phase 1 NOAB Project# Facings: Raised face. H. Grooved Mechanical-Joint Fittings and Couplings: 1. Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. Anvil International, Inc. b. Central Sprinkler Company; a division of Tyco Fire & Building Products. c. National Fittings, Inc. d. S.P. Fittings; a division of Star Pipe Products. e. Victaulic Company of America. 2. Joint Fittings: ASTM A 536, Grade ductile iron; ASTM A 47/A 47M, Grade malleable iron; ASTM A 53/A 53M, Type F, E, or S, Grade B fabricated steel; or ASTM A 106/ A 106M, Grade B steel fittings with grooves or shoulders constructed to accept grooved-end couplings; with nuts, bolts, locking pin, locking toggle, or lugs to secure grooved pipe and fittings. 3. Couplings: Ductile- or malleable-iron housing and EPDM or nitrile gasket of central cavity pressure-responsive design; with nuts, bolts, locking pin, locking toggle, or lugs to secure grooved pipe and fittings. I. Steel Pressure-Seal Fittings: l. Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. Victaulic Company of America. b. Viega LLC. 2. Housing: Steel Rings and Pipe Stop: EPDM. 4. Tools: Manufacturer's special tool. 5. Minimum 300-psig working-pressure rating at 230 deg F. J. Steel Pipe Nipples: ASTM A 733, made of same materials and wa11 thicknesses as pipe in which they are installed. 2.5 JOINING MATERIALS A. Pipe-Flange Gasket Materials: Suitable for chemical and thermal conditions of piping system contents. 1. ASME B , nonmetallic, flat, asbestos free, 1/8-inch maximum thickness unless otherwise indicated. a. Full-Face Type: For flat-face, Class 125, cast-iron and cast-bronze flanges. b. Narrow-Face Type: For raised-face, Class 250, cast-iron and steel flanges. B. Flange Bolts and Nuts: ASME B18.2.l, carbon steel, unless otherwise indicated. C. Solder Filler Metals: ASTM B 32, lead-free alloys. Include water-flushable flux according to ASTMB 813. Construction Documents Hydronic Piping Page7ofl8 Issued for Construction - 02/08/16 (Conformed 04/05/16)

9 NOAB Project# Louis Armstrong New Orleans International Airport North Terminal Development Program Phase l D. Brazing Filler Metals: A WS A5.8/A5.8M, BCuP Series, copper-phosphorus alloys for joining copper with copper; or BAg-1, silver alloy for joining copper with bronze or steel. E. Welding Filler Metals: Comply with AWS D10.12M/D10.12 for welding materials appropriate for wall thickness and chemical analysis of steel pipe being welded. F. Gasket Material: Thickness, mate1ial, and type suitable for fluid to be handled and working temperatures and pressures. 2.6 DIELECTRIC FITTINGS A. General Requirements: Assembly of copper alloy and ferrous materials with separating nonconductive insulating material. Include end connections compatible with pipes to be joined. B. Dielectric Unions: 1. Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. Capitol Manufactllling Company. b. Central Plastics Company. c. Hart Industries International, Inc. d. Watts Regulator Co.; a division of Watts Water Technologies, Inc. e. Zurn Industries, LLC. 2. Description: a. Standard: ASSE b. Pressure Rating: 150 psig to 250 psig minimum working pressure. c. End Connections: Solder-joint copper alloy and threaded ferrous. C. Dielectric Flanges: 1. Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. Capitol Manufacturing Company. b. Central Plastics Company. c. Watts Regulator Co.; a division of Watts Water Technologies, Inc. d. Zurn Industries, LLC. 2. Desc.ription: a. Standard: ASSE b. Factory-fabricated, bolted, companion-flange assembly. c. Pressure Rating: 150 psig to 300 psig minimum working pressure. d. End Connections: Solder-joint copper alloy and threaded ferrous; threaded solder-joint copper alloy and threaded ferrous. D. Dielectric-Flange Insulating Kits: Page8ofl8 Hydronic Piping Construction Documents Issued for Construction - 02/08/16 (Conformed 04/05/16)

10 Louis Armstrong New Orleans International Airport North Tenninal Development Program Phase 1 NOAB Project # l. Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. Advance Products & Systems, Inc. b. Calpico, Inc. c. Central Plastics Company. d. Pipeline Seal and Insulator, Inc. 2. Description: a. Nonconducting materials for field assembly of companion flanges. b. Pressure Rating: 150 psig to 300 psig minimum working pressure. c. Gasket: Neoprene or phenolic. d. Bolt Sleeves: Phenolic or polyethylene. e. Washers: Phenolic with steel backing washers. E. Dielectric Nipples: l. Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. Elster Perfection Corporation. b. Grinnell Mechanical Products. c. Mateo - Norca. d. Precision Plumbing Products, Inc. e. Victaulic Company. 2. Description: a. Standard: IAPMO PS 66. b. Electroplated steel nipple, complying with ASTM F c. Pressure Rating: 300 psig at 225 deg F. d. End Connections: Male threaded or grooved. e. Lining: Inert and noncorrosive, propylene. 2.7 MECHANICAL SLEEVE SEALS A. Description: Modular sealing element unit, designed for field assembly, to fill annular space between pipe and sleeve. 1. Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. Advance Products & Systems, Inc. b. Calpico, Inc. c. Metraflex Co. d. Pipeline Seal and Insulator, Inc. Construction Documents Hydronic Piping Issued for Construction - 02/08/16 (Conformed 04/05/16) Page 9 of 18

11 NOAB Project# Louis Annstrong New Orleans International Airport North Terminal Development Program Phase SLEEVES 2. Sealing Elements: EPDM interlocking links shaped to fit surface of pipe. Include type and number required for pipe material and size of pipe. 3. Pressure Plates: Stainless steel. Include two for each sealing element. 4. Cormecting Bolts and Nuts: Stainless steel of length required to secure pressure plates to sealing elements. Include one for each sealing element. A. Galvanized-Steel Sheet: inch mmtmum thickness; round tube closed with welded longitudinal joint. B. Steel Pipe: ASTM A 53, Type E, Grade B, Schedule 40, galvanized, plain ends. C. Cast Iron: Cast or fabricated "wall pipe" equivalent to ductile-iron pressure pipe, with plain ends and integral waterstop, unless otherwise indicated. D. Stack Sleeve Fittings: Manufactured, cast-iron sleeve with integral clamping flange. Include clamping ring and bolts and nuts for membrane flashing. l. Under deck Clamp: Clamping ring with set screws. E. Molded PE: Reusable, PE, tapered-cup shaped and smooth-outer surface with nailing flange for attaching to wooden forms. 2.9 ESCUTCHEONS A. Description: Manufactured wall and ceiling escutcheons and floor plates, with an ID to closely fit around pipe, tube, and insulation of insulated piping and an OD that completely covers opening. B. One-Piece, Deep-Pattern Type: Deep-drawn, box-shaped brass with polished chrome-plated finish. C. One-Piece, Cast-Brass Type: With set screw. 1. Finish: Polished chrome-plated. D. Split-Casting, Cast-Brass Type: With concealed hinge and set screw. 1. Finish: Polished chrome-plated. E. One-Piece, Stamped-Steel Type: With set screw or spring clips and chrome-plated finish. F. Split-Plate, Stamped-Steel Type: With concealed hinge, set screw or spring clips, and chromeplated finish. G. One-Piece, Floor-Plate Type: Cast-iron floor plate. H. Split-Casting, Floor-Plate Type: Cast brass with concealed hinge and set screw BYPASS CHEMICAL FEEDER A. Description: Welded steel construction; 125-psig working pressure; 5-gal. capacity; with fill funnel and inlet, outlet, and drain valves. 1. Chemicals: Specially formulated, based on analysis of makeup water, to prevent accumulation of scale and corrosion in piping and connected equipment Page 10 of 18 Hydronic Piping Construction Documents Issued for Construction - 02/08/ 16 (Conformed 04/05/16)

12 Louis Armstrong New Orleans International Airport North Tenninal Development Program Phase l NOAB Project# PART 3 - EXECUTION 3.1 PIPING APPLICATIONS A. Hot-water heating piping, aboveground, NPS 2 and smaller, shall be any of the following: 1. Type L, drawn-temper copper tubing, wrought-copper fittings, and soldered joints. 2. Standard weight or Schedule 40, Grade B, socket weld end steel pipe; or Standard weight or Schedule 80 threaded steel pipe; Class 150, malleable-iron fittings; cast-iron flanges and flange fittings; and threaded joints. 3. Standard weight or Schedule 40 steel pipe; grooved, mechanical joint coupling and fittings; and grooved, mechanical joints. B. Hot-water heating piping, aboveground, NPS 2-1/2 and larger, shall be the following: 1. Standard weight or Schedule 40 steel pipe, wrought-steel fittings and wrought-cast or forged-steel flanges and flange fittings, and welded and flanged joints. 2. Standard weight or Schedule 40 steel pipe; grooved, mechanical joint coupling and fittings; and grooved, mechanical joints. C. Hot-water heating piping installed belowground and within slabs shau be the following: 1. See Specification Section "Underground Hydronic Energy Distribution." D. Chilled-water piping, aboveground, NPS 2 and smaller, shall be any of the following: l. Type L, drawn-temper copper tubing, wrought-copper fittings, and soldered joints. 2. Standard weight or Schedule 40 or Schedule 80 steel pipe; Class 150, malleable-iron fittings; cast-iron flanges and flange fittings; and threaded joints. E. Chilled-water piping, aboveground, NPS 2-1/2 and larger, shall be any of the following: 1. Standard weight or Schedule 40 steel pipe, wrought-steel fittings and wrought-cast or forged-steel flanges and flange fittings, and welded and flanged joints. 2. Standard weight or Schedule 40 steel pipe; grooved, mechanical joint coupling and fittings; and grooved, mechanical joints. F. Chilled-water piping installed belowground and within slabs shall be the following: 1. See Specification Section "Underground Hydronic Energy Disttibution." G. Dual-temperature heating and cooling water piping, aboveground, NPS 2 and smaller, shall be the following: l. Type L, drawn-temper copper tubing, wrought-copper fittings, and brazed joints. 2. Standard weight or Schedule 40 socket weld end steel pipe; or, Standard weight or Schedule 80 threaded Steel pipe; Class 150, malleable-iron fittings; cast-iron flanges and flange fittings; and threaded joints. 3. Standard weight or Schedule 40 steel pipe; grooved, mechanical joint coupling and fittings; and grooved, mechanical joints. H. Dual-temperature heating and cooling water piping installed downstream of the radiant floor system piping header and within slabs shall be the following: I. See Specification Section "Radiant Cooling and Heating Hydronic Piping". Construction Documents Hydronic Piping Issued for Construction - 02/08/ 16 (Conformed 04/05/16) Page 11 of 18

13 NOAB Project# Louis Armstrong New Orleans International Airport North Terminal Development Program Phase I I. Condenser-water piping, aboveground, NPS 2 and smaller, shall be any of the following: l. Type L, drawn-temper copper tubing, wrought-copper fittings, and soldered joints. 2. Standard weight or Schedule 40 socket weld end steel pipe or Schedule 80 threaded steel pipe; Class 150, malleable-iron fittings; cast-iron flanges and flange fittings; and threaded joints. 3. Standard weight or Schedule 40 steel pipe; grooved, mechanical joint coupling and fittings; and grooved, mechanical joints. J. Condenser-water piping, aboveground, NPS 2-1/2 and larger, shall be the following: I. Standard weight or Schedule 80 or Schedule 40 steel pipe, wrought-steel fittings and wrought-cast or forged-steel flanges and flange fittings, and welded and flanged joints. 2. Standard weight or Schedule 40 steel pipe; grooved, mechanical joint coupling and fittings; and grooved, mechanical joints. K. Condenser-water piping installed belowground shall be the following: l. Standard weight or Schedule 80 or Schedule 40 steel pipe, wrought-steel fittings and wrought-cast or forged-steel flanges and flange fittings, and welded and flanged joints. 2. See Specification Section " Underground Hydronic Energy Distribution." L. Makeup-water piping installed aboveground shall be the following: l. Type L, drawn-temper copper tubing, wrought-copper fittings, and soldered joints. M. Condensate-Drain Piping: Type DWV or Type L drawn-temper copper tubing, wrought-copper fittings, and soldered joints. N. Blowdown-Drain Piping: Same materials and joining methods as for piping specified for the service in which blowdown drain is installed. 0. Air-Vent Piping: 1. Inlet: Sarne as service where installed with metal-to-plastic transition fittings for plastic piping systems according to piping manufacturer's written instructions. 2. Outlet: Type K, annealed-temper copper tubing with soldered or flared joints. P. Safety-Valve-Inlet and -Outlet Piping for Hot-Water Piping: Sarne materials and joining methods as for piping specified for the service in which safety valve is installed with metal-toplastic transition fittings for plastic piping systems according to piping manufacturer's written instructions. 3.2 PIPING INSTALLATIONS A. Drawing plans, schematics, and diagrams indicate general location and arrangement of piping systems. Install piping as indicated unless deviations to layout are approved on Coordination Drawings. B. Install piping in concealed locations unless otherwise indicated and except in equipment rooms and service areas. C. Install piping indicated to be exposed and piping in equipment rooms and service areas at right angles or parallel to building walls. Diagonal runs are prohibited unless specifically indicated otherwise. D. Install piping above accessible ceilings to allow sufficient space for ceiling panel removal Page 12 of 18 Hydronic Piping Construction Documents Issued for Construction - 02/08/ 16 (Conformed 04/05/16)

14 Louis Armstrong New Orleans International Airport North Terminal Development Program Phase 1 NOAB Project# E. Install piping to pennit valve servicing. F. InstalJ piping at indicated slopes. G. InstalJ piping free of sags and bends. H. Install fittings for changes in direction and branch connections. I. Install piping to allow application of insulation. J. Select system components with pressure rating equal to or greater than system operating pressure. K. Install groups of pipes parallel to each other, spaced to permit applying insulation and servicing of valves. L. Install drains, consisting of a tee fitting, ball valve, and short threaded nipple with cap, at low points in piping system mains and elsewhere as required for system drainage. Ball valve and threaded nipple with cap: Up to 6 inches pipe use NPS 3/4 M. Install piping at a uniform grade of 0.2 percent upward in direction of flow. N. Reduce pipe sizes using eccentric reducer fitting installed with level side up. 0. Install branch connections to mains using tee fittings in main pipe, with the branch connected to the bottom of the main pipe. For up-feed risers, connect the branch to the top of the main pipe. P. Install valves according to Section "Globe Valves for HV AC Piping," Section "Ball Valves for HVAC Piping," Section "Butterfly Valves for HVAC Piping," Section "Check Valves for HVAC Piping," Section "Gate Valves for HV AC Piping," and Section "Plug Valves for HV AC Piping." Q. Install unions in piping, NPS 2 and smaller, adjacent to valves, at final connections of equipment, and elsewhere as indicated. R. Install flanges in piping, NPS 2-1/2 and larger, at final connections of equipment and elsewhere as indicated. S. Install shutoff valve immediately upstream of each dielectric fitting. T. Comply with requirements in Section "Expansion Fittings and Loops for HV AC Piping" for installation of expansion loops, expansion joints, anchors, and pipe aligrirnent guides. U. Comply with requirements in Section "Identification for HVAC Piping and Equipment" for identifying piping. V. InstalJ sleeves for piping penetrations of walls, ceilings, and floors. Comply with requirements for sleeves specified in this section. W. Install sleeve seals for piping penetrations of concrete walls and slabs. Comply with requirements for sleeve seals specified in this section. X. Install escutcheons for piping penetrations of walls, ceilings, and floors. Comply with requirements for escutcheons specified in this section. Y. Install strainers on inlet side of each control valve, pressure-reducing valve, solenoid valve, pump, and elsewhere as indicated. Z. Install no piping in elevator machine rooms, electric rooms and closets, and telephone rooms and closets. Construction Documents Hydronic Piping Page 13 of 18 Issued for Construction - 02/08/16 (Conformed 04/05/16)

15 NOAB Project# Louis Armstrong New Orleans International Aiiport Nmth Te1minal Development Program Phase DIELECTRIC FITTING INSTALLATION A. Install dielectric fittings in piping at connections of dissimilar metal piping and tubing. B. Dielechic Fittings for NPS 2 and Smaller: Use dielectric nipples or unions. C. Dielectric Fittings for NPS 2-1/2 to NPS 4: Use dielectric flanges or flange kits. D. Dielectric Fittings for NPS 5 and Larger: Use dielectric flange kits. 3.4 HANGERS AND SUPPORTS A. Comply with requirements in Section "Hangers and Supports for HV AC Piping and Equipment" for hanger, support, and anchor devices. Comply with the following requirements for maximum spacing of supports. B. Comply with requirements in Section "Vibration Controls forhvac". C. Install the following pipe attachments: 1. Adjustable steel clevis hangers for individual horizontal piping less than 20 feet long. 2. For hot water systems, adjustable roller hangers and spring hangers for individual horizontal piping 20 feet or longer. 3. For hot water systems, pipe Roller: MSS SP-58, Type 44 for multiple horizontal piping 20 feet or longer, supported on a trapeze. For hydronic systems where pipe rollers are not used. Hanging method must allow for pipe expansion and account for force and stress imposed on the system. 4. Spring hangers to support vertical runs. 5. Provide copper-clad hangers and supports for hangers and supports in direct contact with copper pipe. 6. On plastic pipe, install pads or cushions on bearing surfaces to prevent hanger from scratching pipe. 7. Supports of wire, rope, wood, chain, strap, perforated bar or any other makeshift device will not be permitted. 8. Minimum spacing and minimum rod diameter shall comply with latest edition of MSS SP- 58. D. Install hangers for steel piping with the following maximum spacing and minimum rod sizes: l. NPS 3/4: Maximum span, 7 feet. 2. NPS 1: Maximum span, 7 feet. 3. NPS 1-1/4: Maximum span, 7 feet; minimum rod size, 3/8 inch. 4. NPS l-1/2: Maximum span, 9 feet. 5. NPS 2: Maximum span, 10 feet. 6. NPS 2-1/2: Maximum span, 11 feet. 7. NPS 3: Maximum span, 12 feet. 8. NPS 4: Maximum span, 12 feet; minimum rod size, 5/8 inch. 9. NPS 6: Maximum span, 12 feet; minimum rod size, 3/4 inch Page 14 of 18 Hydron:ic Piping Construction Documents Issued for Construction - 02/08/16 (Conformed 04/05/16)

16 Louis Annstrong New Orleans International Airpmi North Terminal Development Program Phase 1 NOAB Project # NPS 8: Maximum span, 12 feet; minimwn rod size, 3/4 inch. 1 l. NPS 10: Maximum span, 12 feet; minimum rod size, 7/8 inch. 12. NPS 12: Maximum span, 12 feet; minimum rod size, 7/8 inch. 13. NPS 14: Maximum span, 12 feet; minimum rod size, l inch. 14. NPS 16: Maximum span, 12 feet; minimum rod size, 1 inch. 15. NPS 18: Maximum span, 12feet;minimumrod size, 1-l/4inches. 16. NPS 20: Maximwn span, 12 feet; minimum rod size, 1-1/4 inches. E. Install hangers for drawn-temper copper piping with the following maximum spacing and minimum rod sizes: 1. NPS 3/4: Maximum span, 5 feet; minimum rod size, 3/8 inch. 2. NPS I: Maximwn span, 6 feet; minimum rod size, 3/8 inch. 3. NPS l-i/4maximum span, 7 feet; minimum rod size, 3/8 inch. 4. NPS 1-1/2: Maximum span, 8 feet; minimum rod size, 3/8 inch. 5. NPS 2: Maximum span, 8 feet; minimum rod size, 3/8 inch. 6. NPS 2-1/2: Maximum span, 9 feet; minimwn rod size, Yi inch. 7. NPS 3: Maximum span, 10 feet; minimum rod size, Yz inch. 8. NPS 4: Maximum span, 12 feet; minimum rod size, Yz inch. 9. NPS 6: Maximum span, 12 feet; minimum rod size, 5/8 inch. 10. NPS 8: Maximum span, 12 feet; minimum rod size, 3/4 inch. 11. NPS I 0: Maximum span, 12 feet; minimum rod size, 3/4 inch. 12. NPS 12: Maximum span, 12 feet; minimum rod size, 3/4 inch. F. Support vertical mns at roof, at each floor. l. Base Elbow Support: Provide bearing plate on stmctural support, similar to F&S Manufacturing Corp. Fig Provide guides at every third floor but not to exceed: a. 25 ft. for piping to 2 inches. b. 36 ft. for piping 2-1 /2 inches to 12 inches. c. 50 ft. for piping 14 inches and larger. 3. Top Support: Provide special hanger or saddle in horizontal connection and make provisions for expansion. 4. Intermediate Supports: Steel pipe clamp at floor. Bolt and weld to pipe with extension ends bearing on stmctural steel or bearing plates. 5. For multiple pipes, coordinate guides bearing plates and accessory steel. 3.5 PIPE JOINT CONSTRUCTION A. Ream ends of pipes and tubes and remove burrs. Bevel plain ends of steel pipe. Constmction Documents Hydronic Piping Page 15 of 18 Issued for Constmction - 02/08/16 (Conformed 04/05/16)

17 NOAB Project# Louis Armstrong New Orleans International Airport North Terminal Development Program Phase l B. Remove scale, slag, dirt, and debris from inside and outside of pipe and fittings before assembly. C. Soldered Joints: Apply ASTM B 813, water-flushable flux, unless otherwise indicated, to tube end. Construct joints according to ASTM B 828 or CDA's "Copper Tube Handbook," using lead-free solder alloy complying with ASTM B 32. D. Brazed Joints: Construct joints according to A WS's "Brazing Handbook," "Pipe and Tube" Chapter, using copper-phosphorus brazing filler metal complying with A WS A5.8/ A5.8M. E. Threaded Joints: Thread pipe with tapered pipe threads according to ASME Bl 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: 1. Apply appropriate tape or thread compound to external pipe threads unless dry seal threading is specified. 2. 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. F. Welded Joints: Construct joints according to A WS D 10.12M/Dl0.12, using qualified processes and welding operators according to "Quality Assurance" Article. G. Flanged Joints: Select appropriate gasket material, size, type, and thickness for service application. Install gasket concentrically positioned. Use suitable lubricants on bolt threads. Flanged joint types can be Weld-neck or Slip on. H. Plastic Piping Solvent-Cemented Joints: Clean and dry joining surfaces. Join pipe and fittings according to the following: 1. Comply with ASTM F 402 for safe-handling practice of cleaners, primers, and solvent cements. 2. CPVC Piping: Join according to ASTM D 2846/D 2846M Appendix. 3. PVC Pressure Piping: Join ASTM D 1785 schedule number, PVC pipe and PVC socket fittings according to ASTM D Join other-than-schedule number PVC pipe and socket fittings according to ASTM D PVC Nonpressure Piping: Join according to ASTM D I. Grooved Joints: Assemble joints with coupling and gasket, lubricant, and bolts. Cut or roll grooves in ends of pipe based on pipe and coupling manufacturer's written instructions for pipe wall thickness. Use grooved-end fittings and rigid, grooved-end-pipe couplings. 3.6 TERMINAL EQUIPMENT CONNECTIONS A. Sizes for supply and return piping connections shall be the same as or larger than equipment connections. B. Install control valves in accessible locations close to connected equipment. C. Install bypass piping with globe valve around control valve. If parallel control valves are installed, only one bypass is required. D. Install ports for pressure gages and thermometers at coil inlet and outlet connections. Comply with requirements in Section "Meters and Gages for HV AC Piping." Page 16 of 18 Hydronic Piping Construction Documents Issued for Construction - 02/08/ 16 (Conformed 04/05/16)

18 Louis Annstrong New Orleans International Airport North Terminal Development Program Phase I NOAB Project # FIELD QUALITY CONTROL A. Prepare hydronic piping according to ASME B3 l.9 and as follows: l. Leave joints, including welds, uninsulated and exposed for examination during test. 2. Provide temporary restraints for expansion joints that cannot sustain reactions due to test pressure. If temporary restraints are impractical, isolate expansion joints from testing. 3. Flush hydronic piping systems with clean water; then remove and clean or replace strainer screens. 4. Isolate equipment from piping. If a valve is used to isolate equipment, its closure shall be capable of sealing against test pressure without damage to valve. Install blinds in flanged joints to isolate equipment. 5. Install safety valve, set at a pressure no more than one-third higher than test pressure, to protect against damage by expanding liquid or other source of overpressure during test. B. Perform the following tests on hydronic piping: I. Use ambient temperature water as a testing medium unless there is risk of damage due to freezing. Another liquid that is safe for workers and compatible with piping may be used. 2. While filling system, use vents installed at high points of system to release air. Use drains installed at low points for complete draining of test liquid. 3. Isolate expansion tanks and determine that hydronic system is full of water. 4. Subject piping system to hydrostatic test pressure that is not less than 1.5 times the system's design pressure. Test pressure shall not exceed maximum pressure for any vessel, pump, valve, or other component in system under test. Verify that stress due to pressure at bottom of vertical runs does not exceed 90 percent of specified minimum yield strength or 1.7 times the "SE" value in Appendix A in ASME B31.9, "Building Services Piping." 5. After hydrostatic test pressure has been applied for at least 10 minutes, examine piping, joints, and connections for leakage. Eliminate leaks by tightening, repairing, or replacing components and repeat hydrostatic test until there are no leaks. 6. Prepare written report of testing. C. Perform the following before operating the system: 1. Open manual valves fully. 2. Inspect pumps for proper rotation. 3. Set makeup pressure-reducing valves for required system pressure. 4. Inspect air vents at high points of system and determine if all are installed and operating freely (automatic type), or bleed air completely (manual type). 5. Set temperature controls so all coils are calling for full flow. 6. Inspect and set operating temperatures of hydronic equipment, such as boilers, chillers, cooling towers, to specified values. 7. Verify lubrication of motors and bearings. Construction Documents Hydronic Piping Page 1 7 of 18 Issued for Construction - 02/08/16 (Conformed 04/05/16)

19 NOAB Project # Louis Armstrong New Orleans International Airport North Terminal Development Program Phase COMMISSIONING A. Comply with commissioning process procedures and requirements as specified in Division "HV AC System Commissioning," and Division 01 General Requirements, in addition to the commissioning requirements in each section. END OF SECTION Page 18 of 18 Hydronic Piping Construction Documents Issued for Construction - 02/08/16 (Conformed 04/05/16)