SET 01 Openings: 104, EA HINGES 652 HAG 1 EA OFFICE LOCK ND50PD x RHO 626 SCH 1 EA WALL STOP WS IVE

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1 ADDENDUM ADDENDUM No. 1 July 09, 2010 MILLERSVILLE COMMUNITY CENTER, Millersville, TN Community Center, Playground and Amphitheater The following changes, additions, and/or clarifications to the Construction Documents shall be incorporated in said documents, and become part the Contract. ADDITIONS AND CHANGES TO THE PLANS Sheet C201 Section A-A: the dimension of the bridge span is approximate and may vary depending upon the bank condition at the time of placement. The contractor is to field measure the span. No allowance will be granted after award of the contract for additional bridge length required to span the watercourse. The bridge is to measure 10-0 wide clear with 54 high rails. Sheet S Design Loads, Earthquake Design Data: revise as shown. 2. Wood Framing, Item 9, revise as shown. Sheet S101 Foundation and Slab Plan: add detail and detail marker at exterior stage stair. Sheet S102 Framing Plan: add detail and detail marker at north gable framing. Sheet A101 Revise as shown. Sheet A Add rooftop unit curb detail. 2. Add attic ventilation calculations. Sheet A Detail 7/302: revise as shown. Sheet A303 Add details 1-5. Sheet A401 Revision of the hardware schedule as follows: SET 01 Openings: 104, EA HINGES 652 HAG 1 EA OFFICE LOCK ND50PD x RHO 626 SCH 1 EA WALL STOP WS IVE SET 02 Openings: 118, 119 EA HINGES 652 HAG 1 EA PUSH PLATE 70C 630 ROC 1 EA PULL PLATE 102 x 70C 630 ROC 1 EA CLOSER 410 x ST LCN 1 of Plymouth Road Livonia, MI p. (734) f. (734)

2 ADDENDUM 1 EA OVERHEAD STOP GLY 1 EA KICKPLATE 10 x 1 LDW 630 ROC SET 03 Openings: 112, 114, 115, 117, 124.2, 126 EA HINGES 652 HAG 1 EA STOREROOM LOCK ND80PD x RHO 626 SCH 1 EA CLOSER LCN 1 EA WALL STOP WS IVE 1 EA KICKPLATE 10 x 1 LDW 630 ROC 1 SET SEALS 5050 BLK NGP SET 04 Opening: 111 EA HINGES 652 HAG 1 EA PASSAGE SET ND10S x RHO 626 SCH 1 EA OVERHEAD STOP GLY SET 05 Opening: 116 EA HINGES 652 HAG 1 EA STOREROOM LOCK ND80PD x RHO 626 SCH 1 EA CLOSER 4110 CUSH 689 LCN 1 SET SEALS 5050 BLK NGP SET 06 Opening: 129 EA HINGES 652 HAG 1 EA OFFICE LOCK ND50PD x RHO 626 SCH 1 EA CLOSER LCN 1 EA WALL STOP WS IVE 1 EA KICKPLATE 10 x 1 LDW 630 ROC 2 SET SEALS 5050 BLK NGP 1 EA AUTO DR BOTTOM 423N AL NGP 1 EA THRESHOLD 425 AL NGP SET 07 Opening: EA HINGES 652 HAG 1 EA OFFICE LOCK ND50PD x RHO 626 SCH 1 EA CLOSER LCN 1 EA WALL STOP WS IVE 1 SET SEALS 5050 BLK NGP SET 08 Opening: EA HINGES 652 HAG 1 EA OFFICE LOCK ND50PD x RHO 626 SCH 1 EA CLOSER 4110 CUSH 689 LCN 1 SET SEALS 5050 BLK NGP SET 09 Opening: 107 EA HINGES 652 HAG 1 EA RIM EXIT DEVICE CD99L 626 VON 2 EA CYLINDER AS REQUIRED 626 SCH 1 EA CLOSER 4110 H CUSH 689 LCN 2 of Plymouth Road Livonia, MI p. (734) f. (734)

3 ADDENDUM 1 SET SEALS 5050 BLK NGP SET 10 Opening Sets: [105.1 & 105.2], [106.1 & 106.2], [127.3 & 127.4], [127.5 & 127.6] EA HINGES 652 HAG 2 EA SVR EXIT DEVICE CD9927L-LBR 626 VON 4 EA CYLINDER AS REQUIRED 626 SCH 2 EA CLOSER 4110 H CUSH 689 LCN 1 SET SEALS 5050 BLK NGP 1 SET ASTRAGAL 137N (SET) AL NGP SET 11 Opening: EA HINGES 652 HAG 1 EA PRIVACY LOCK ND40S x RHO 626 SCH 1 EA DEADBOLT LOCK B662P 689 LCN 1 EA CLOSER LCN 1 EA WALL STOP WS IVE SET 12 Openings: 120.2, 121, 122 EA HINGES 652 HAG 1 EA ENTRANCE LOCK L9453P x RHO 626 SCH 1 EA CLOSER LCN 1 EA WALL STOP WS IVE 1 SET SEALS 160 AL NGP 1 EA SWEEP 200N AL NGP 1 EA THRESHOLD 8425 AL NGP 1 EA RAIN DRIP 16 AL NGP SET 13 Opening: 125 EA HINGES 652 HAG 1 EA RIM EXIT DEVICE CD99NL 626 VON 2 EA CYLINDER AS REQUIRED 626 SCH 1 EA CLOSER 4110 CUSH 689 LCN 1 SET SEALS 160 AL NGP 1 EA SWEEP 200N AL NGP 1 EA THRESHOLD 8425 AL NGP 1 EA RAIN DRIP 16 AL NGP SET 14 Openings: 110, 113 EA HINGES 652 HAG 1 EA ENTRANCE LOCK L9453P x RHO 626 SCH 1 EA CLOSER LCN 1 EA WALL STOP WS IVE 1 SET SEALS 5050 BLK NGP 1 EA SWEEP 200N AL NGP 1 EA THRESHOLD 425 AL NGP 3 of Plymouth Road Livonia, MI p. (734) f. (734)

4 ADDENDUM SET 15 Openings: Set: [102.1, 102.2], Single Door 123 EA HINGES 652 HAG 1 EA PUSH-PULL BAR BF ROC 1 EA ADA OPERATOR TDA200 AL TMX 2 EA ACTUATOR 1 EA CLOSER 4110 CUSH 689 LCN 1 SET SEALS 5050 BLK NGP 1 EA SWEEP 200N AL NGP 1 EA THRESHOLD 425 AL NGP SET 16 Opening Set: [127.1, 127.2] 2 EA CONTINUOUS HINGE HD CLR HAG 2 EA CRV EXIT DEVICE CD9947L 626 VON 4 EA CYLINDER AS REQUIRED 626 SCH 2 EA CLOSER 4110 EDA x 18 x LCN 2 EA OVERHEAD STOP GLY 2 EA SWEEP 200N AL NGP 1 EA THRESHOLD 8425 AL NGP SEALS BY DOOR SUPPLIER SET 17 Opening Set: [101.1, 101.2] 2 EA CONTINUOUS HINGE HD CLR HAG 2 EA CRV EXIT DEVICE CD9947L 626 VON 4 EA CYLINDER AS REQUIRED 626 SCH 1 EA ADA OPERATOR TDA200 AL TMX 1 EA ACTUATOR 2 EA CLOSER 4110 EDA x 18 x LCN 2 EA OVERHEAD STOP GLY 2 EA SWEEP 200N AL NGP 1 EA THRESHOLD 8425 AL NGP SEALS BY DOOR SUPPLIER -exit device must be manually dogged for operator to function All single doors to receive 3 hinges min., double doors 3 pair min. Sheet P001 Revise as shown. Sheet P101 Add roof top drains to drain waste vent plan as shown. Sheet M001 Revise as shown. Sheet M Add thermostat locations. 2. Revise as shown Sheet E103 The following items shall be revised as described below. 1. All ground mounted light fixture shall receive a concrete base. 2. Add four coach lights: two at each main entry, to be circuited by EC. 3. All exterior lighting is be controlled by photocell and timer. Provide Wattstopper HINCP time clock. Provide Wattstopper EM-24A2 Photocell. 4 of Plymouth Road Livonia, MI p. (734) f. (734)

5 ADDENDUM ADDITIONS AND CHANGES TO THE SPECIFICATIONS 1. Knox Box: Provide model #M-2010 Fire Department Box with Knox key switch. Install per manufacturer s written instructions. Final location is to be determined by the local fire enforcement agency. 2. SECTION HOLLOW METAL DOORS AND FRAMES Replace pages 3 and 4 per the attached. 3. SECTION DOOR HARDWARE: Replace pages 3-6 per the attached. 4. SECTION UNIT PRICES Provide a unit price for the removal of soils that are found to be located beneath the building pad that are determined by the testing engineer to be unacceptable and replace with suitable fill found on-site. Poor soils to be undercut may be disposed of on-site. Such spoils will be located per the architect and shall be properly graded and seeded. 5. SECTION TOILET, BATH AND LAUNDRY ACCESSORIES Part 3.1, C. add the following: Provide one paper towel dispenser and one waste receptacle in each of the following rooms: 128, 118, 119, 120, 121, 122. Provide one sanitary napkin disposal in each stall of rooms 119, 120, 121 and 122. Part 2.1, D, item 2, add the following: surface mounted is acceptable. Part 2.1, G, item 2, add the following: fixed tilt is acceptable. 6. Add SECTION FIRE EXTINGUISHERS in its entirety. Wayde C. Hoppe, RA, NCARB, LEED AP Senior Architect OHM Architects. Engineers. Planners Plymouth Road Livonia, MI p f d m Advancing Communities WCH: add form 5 of Plymouth Road Livonia, MI p. (734) f. (734)

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12 SECTION FIRE EXTINGUISHERS PART 1 - GENERAL 1.1 SUMMARY A. Section includes portable, hand-carried fire extinguishers and mounting brackets for fire extinguishers. 1.2 ACTION SUBMITTALS A. Product Data: For each type of product indicated. 1.3 INFORMATIONAL SUBMITTALS A. Warranty: Sample of special warranty. 1.4 CLOSEOUT SUBMITTALS A. Operation and maintenance data. 1.5 QUALITY ASSURANCE A. NFPA Compliance: Fabricate and label fire extinguishers to comply with NFPA 10, "Portable Fire Extinguishers." B. Fire Extinguishers: Listed and labeled for type, rating, and classification by an independent testing agency acceptable to authorities having jurisdiction. C. Coordinate type and capacity of fire extinguishers with fire protection cabinets to ensure fit and function. 1.6 WARRANTY A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace fire extinguishers that fail in materials or workmanship within specified warranty period. 1. Failures include, but are not limited to, the following: a. Failure of hydrostatic test according to NFPA 10. b. Faulty operation of valves or release levers. 2. Warranty Period: Six years from date of Substantial Completion. City of Millersville FIRE EXTINGUISHERS Playground, Community Center, Amphitheatre OHM Project No /22/2010

13 PART 2 - PRODUCTS 2.1 PORTABLE, HAND-CARRIED FIRE EXTINGUISHERS A. Fire Extinguishers: Type, size, and capacity for each fire protection cabinet and mounting bracket indicated. 1. Basis-of-Design Product: Subject to compliance with requirements, provide or comparable product by one of the following: a. J. L. Industries, Inc.; a division of Activar Construction Products Group. b. Larsen's Manufacturing Company. 2. Instruction Labels: Include pictorial marking system complying with NFPA 10, Appendix B and bar coding for documenting fire extinguisher location, inspections, maintenance, and recharging. B. Multipurpose Dry-Chemical Type: UL-rated 2A10BC nominal capacity, with monoammonium phosphate-based dry chemical in manufacturer's standard enameled container. 2.2 MOUNTING BRACKETS A. Mounting Brackets: Manufacturer's standard steel, designed to secure fire extinguisher to wall or structure, of sizes required for types and capacities of fire extinguishers indicated, with plated or black baked-enamel finish. 1. Basis-of-Design Product: Subject to compliance with requirements, provide product by one of the following: a. J. L. Industries, Inc.; a division of Activar Construction Products Group. b. Larsen's Manufacturing Company. B. Identification: Lettering complying with authorities having jurisdiction for letter style, size, spacing, and location. Locate as indicated by Architect. 1. Identify bracket-mounted fire extinguishers with the words "FIRE EXTINGUISHER" in red letter decals applied to mounting surface. a. Orientation: Vertical. PART 3 - EXECUTION 3.1 INSTALLATION A. Examine fire extinguishers for proper charging and tagging. 1. Remove and replace damaged, defective, or undercharged fire extinguishers. B. Install fire extinguishers and mounting brackets in locations indicated and in compliance with requirements of authorities having jurisdiction. 1. Mounting Brackets: 54 inches above finished floor to top of fire extinguisher. C. Mounting Brackets: Fasten mounting brackets to surfaces, square and plumb, at locations indicated. END OF SECTION City of Millersville FIRE EXTINGUISHERS Playground, Community Center, Amphitheatre OHM Project No /22/2010

14 SECTION FACILITY NATURAL-GAS PIPING PART 1 - GENERAL 1.1 SUMMARY A. Section Includes: 1. Pipes, tubes, and fittings. 2. Piping specialties. 3. Piping and tubing joining materials. 4. Valves. 5. Pressure regulators. 1.2 PERFORMANCE REQUIREMENTS A. Minimum Operating-Pressure Ratings: 1. Piping and Valves: 100 psig minimum unless otherwise indicated. B. Natural-Gas System Pressure within Buildings: 0.5 psig or less. 1.3 ACTION SUBMITTALS A. Product Data: For each type of product indicated. B. Shop Drawings: For facility natural-gas piping layout. Include plans, piping layout and elevations, sections, and details for fabrication of pipe anchors, hangers, supports for multiple pipes, alignment guides, expansion joints and loops, and attachments of the same to building structure. Detail location of anchors, alignment guides, and expansion joints and loops. 1.4 INFORMATIONAL SUBMITTALS A. Welding certificates. B. Field quality-control reports. 1.5 CLOSEOUT SUBMITTALS A. Operation and maintenance data. 1.6 QUALITY ASSURANCE A. Steel Support Welding Qualifications: Qualify procedures and personnel according to AWS D1.1/D1.1M, "Structural Welding Code - Steel." City of Millersville FACILITY NATURAL-GAS PIPING Playground, Community Center, Amphitheatre OHM Project No /22/2010

15 B. Pipe Welding Qualifications: Qualify procedures and operators according to ASME Boiler and Pressure Vessel Code. C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application. PART 2 - PRODUCTS 2.1 PIPES, TUBES, AND FITTINGS A. Steel Pipe: ASTM A 53/A 53M, black steel, Schedule 40, Type E or S, Grade B. 1. Malleable-Iron Threaded Fittings: ASME B16.3, Class 150, standard pattern. 2. Wrought-Steel Welding Fittings: ASTM A 234/A 234M for butt welding and socket welding. 3. Unions: ASME B16.39, Class 150, malleable iron with brass-to-iron seat, ground joint, and threaded ends. 4. Protective Coating for Underground Piping: Factory-applied, three-layer coating of epoxy, adhesive, and PE. a. Joint Cover Kits: Epoxy paint, adhesive, and heat-shrink PE sleeves. B. Annealed-Temper Copper Tube: Comply with ASTM B 88, Type L. 1. Copper Fittings: ASME B16.22, wrought copper, and streamlined pattern. 2. Flare Fittings: Comply with ASME B16.26 and SAE J513. a. Copper fittings with long nuts. b. Metal-to-metal compression seal without gasket. c. Dryseal threads complying with ASME B Protective Coating for Underground Tubing: Factory-applied, extruded PE a minimum of inch thick. 2.2 PIPING SPECIALTIES A. Appliance Flexible Connectors: 1. Indoor, Fixed-Appliance Flexible Connectors: Comply with ANSI Z Indoor, Movable-Appliance Flexible Connectors: Comply with ANSI Z Outdoor, Appliance Flexible Connectors: Comply with ANSI Z Corrugated stainless-steel tubing with polymer coating. 5. Operating-Pressure Rating: 0.5 psig. 6. End Fittings: Zinc-coated steel. 7. Threaded Ends: Comply with ASME B Maximum Length: 72 inches. B. Quick-Disconnect Devices: Comply with ANSI Z Copper-alloy convenience outlet and matching plug connector. 2. Nitrile seals. City of Millersville FACILITY NATURAL-GAS PIPING Playground, Community Center, Amphitheatre OHM Project No /22/2010

16 3. Hand operated with automatic shutoff when disconnected. 4. For indoor or outdoor applications. 5. Adjustable, retractable restraining cable. C. Y-Pattern Strainers: 1. Body: ASTM A 126, Class B, cast iron with bolted cover and bottom drain connection. 2. End Connections: Threaded ends for NPS 2 and smaller. 3. Strainer Screen: 40-mesh startup strainer, and perforated stainless-steel basket with 50 percent free area. 4. CWP Rating: 125 psig. D. Weatherproof Vent Cap: Cast- or malleable-iron increaser fitting with corrosion-resistant wire screen, with free area at least equal to cross-sectional area of connecting pipe and threadedend connection. 2.3 JOINING MATERIALS A. Joint Compound and Tape: Suitable for natural gas. B. Welding Filler Metals: Comply with AWS D10.12/D10.12M for welding materials appropriate for wall thickness and chemical analysis of steel pipe being welded. C. Brazing Filler Metals: Alloy with melting point greater than 1000 deg F complying with AWS A5.8/A5.8M. Brazing alloys containing more than 0.05 percent phosphorus are prohibited. 2.4 MANUAL GAS SHUTOFF VALVES A. See "Underground Manual Gas Shutoff Valve Schedule" and "Aboveground Manual Gas Shutoff Valve Schedule" Articles for where each valve type is applied in various services. B. General Requirements for Metallic Valves, NPS 2 and Smaller: Comply with ASME B CWP Rating: 125 psig. 2. Threaded Ends: Comply with ASME B Dryseal Threads on Flare Ends: Comply with ASME B Tamperproof Feature: Locking feature for valves indicated in "Underground Manual Gas Shutoff Valve Schedule" and "Aboveground Manual Gas Shutoff Valve Schedule" Articles. 5. Listing: Listed and labeled by an NRTL acceptable to authorities having jurisdiction for valves 1 inch and smaller. 6. Service Mark: Valves 1-1/4 inches to NPS 2 shall have initials "WOG" permanently marked on valve body. C. Two-Piece, Full-Port, Bronze Ball Valves with Bronze Trim: MSS SP Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. BrassCraft Manufacturing Company; a Masco company. b. Conbraco Industries, Inc.; Apollo Div. c. Lyall, R. W. & Company, Inc. City of Millersville FACILITY NATURAL-GAS PIPING Playground, Community Center, Amphitheatre OHM Project No /22/2010

17 d. McDonald, A. Y. Mfg. Co. e. Perfection Corporation; a subsidiary of American Meter Company. 2. Body: Bronze, complying with ASTM B Ball: Chrome-plated bronze. 4. Stem: Bronze; blowout proof. 5. Seats: Reinforced TFE; blowout proof. 6. Packing: Threaded-body packnut design with adjustable-stem packing. 7. Ends: Threaded, flared, or socket as indicated in "Underground Manual Gas Shutoff Valve Schedule" and "Aboveground Manual Gas Shutoff Valve Schedule" Articles. 8. CWP Rating: 600 psig. 9. Listing: Valves NPS 1 and smaller shall be listed and labeled by an NRTL acceptable to authorities having jurisdiction. 10. Service: Suitable for natural-gas service with "WOG" indicated on valve body. D. Bronze Plug Valves: MSS SP Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: a. Lee Brass Company. b. McDonald, A. Y. Mfg. Co. 2. Body: Bronze, complying with ASTM B Plug: Bronze. 4. Ends: Threaded, socket, as indicated in "Underground Manual Gas Shutoff Valve Schedule" and "Aboveground Manual Gas Shutoff Valve Schedule" Articles. 5. Operator: Square head or lug type with tamperproof feature where indicated. 6. Pressure Class: 125 psig. 7. Listing: Valves NPS 1 and smaller shall be listed and labeled by an NRTL acceptable to authorities having jurisdiction. 8. Service: Suitable for natural-gas service with "WOG" indicated on valve body. E. PE Ball Valves: Comply with ASME B Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: a. Kerotest Manufacturing Corp. b. Lyall, R. W. & Company, Inc. c. Perfection Corporation; a subsidiary of American Meter Company. 2. Body: PE. 3. Ball: PE. 4. Stem: Acetal. 5. Seats and Seals: Nitrile. 6. Ends: Plain or fusible to match piping. 7. CWP Rating: 80 psig. 8. Operator: Nut or flat head for key operation. 9. Include plastic valve extension. 10. Include tamperproof locking feature for valves where indicated on Drawings. F. Valve Boxes: City of Millersville FACILITY NATURAL-GAS PIPING Playground, Community Center, Amphitheatre OHM Project No /22/2010

18 1. Cast-iron, two-section box. 2. Top section with cover with "GAS" lettering. 3. Bottom section with base to fit over valve and barrel a minimum of 5 inches in diameter. 4. Adjustable cast-iron extensions of length required for depth of bury. 5. Include tee-handle, steel operating wrench with socket end fitting valve nut or flat head, and with stem of length required to operate valve. 2.5 PRESSURE REGULATORS A. General Requirements: 1. Single stage and suitable for natural gas. 2. Steel jacket and corrosion-resistant components. 3. Elevation compensator. 4. End Connections: Threaded for regulators NPS 2 and smaller. B. Appliance Pressure Regulators: Comply with ANSI Z Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. Canadian Meter Company Inc. b. Eaton Corporation; Controls Div. c. Harper Wyman Co. d. Maxitrol Company. e. SCP, Inc. 2. Body and Diaphragm Case: Die-cast aluminum. 3. Springs: Zinc-plated steel; interchangeable. 4. Diaphragm Plate: Zinc-plated steel. 5. Seat Disc: Nitrile rubber. 6. Seal Plug: Ultraviolet-stabilized, mineral-filled nylon. 7. Factory-Applied Finish: Minimum three-layer polyester and polyurethane paint finish. 8. Regulator may include vent limiting device, instead of vent connection, if approved by authorities having jurisdiction. 9. Maximum Inlet Pressure: 1 psig. 2.6 DIELECTRIC UNIONS A. Dielectric Unions: 1. Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. Capitol Manufacturing Company. b. Central Plastics Company. c. Hart Industries International, Inc. d. Jomar International Ltd. e. Matco-Norca, Inc. f. McDonald, A. Y. Mfg. Co. g. Watts Regulator Co.; a division of Watts Water Technologies, Inc. h. Wilkins; a Zurn company. City of Millersville FACILITY NATURAL-GAS PIPING Playground, Community Center, Amphitheatre OHM Project No /22/2010

19 2. Description: a. Standard: ASSE b. Pressure Rating: 125 psig minimum at 180 deg F. c. End Connections: Solder-joint copper alloy and threaded ferrous. 2.7 LABELING AND IDENTIFYING A. Detectable Warning Tape: Acid- and alkali-resistant, PE film warning tape manufactured for marking and identifying underground utilities, a minimum of 6 inches wide and 4 mils thick, continuously inscribed with a description of utility, with metallic core encased in a protective jacket for corrosion protection, detectable by metal detector when tape is buried up to 30 inches deep; colored yellow. PART 3 - EXECUTION 3.1 INDOOR PIPING INSTALLATION A. Comply with NFPA 54 for installation and purging of natural-gas piping. B. Drawing plans, schematics, and diagrams indicate general location and arrangement of piping systems. Indicated locations and arrangements are used to size pipe and calculate friction loss, expansion, and other design considerations. Install piping as indicated unless deviations to layout are approved on Coordination Drawings. C. Arrange for pipe spaces, chases, slots, sleeves, and openings in building structure during progress of construction, to allow for mechanical installations. D. Install piping in concealed locations unless otherwise indicated and except in equipment rooms and service areas. E. 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. F. Install piping above accessible ceilings to allow sufficient space for ceiling panel removal. G. Locate valves for easy access. H. Install natural-gas piping at uniform grade of 2 percent down toward drip and sediment traps. I. Install piping free of sags and bends. J. Install fittings for changes in direction and branch connections. K. Verify final equipment locations for roughing-in. L. Comply with requirements in Sections specifying gas-fired appliances and equipment for roughing-in requirements. City of Millersville FACILITY NATURAL-GAS PIPING Playground, Community Center, Amphitheatre OHM Project No /22/2010

20 M. Drips and Sediment Traps: Install drips at points where condensate may collect, including service-meter outlets. Locate where accessible to permit cleaning and emptying. Do not install where condensate is subject to freezing. 1. Construct drips and sediment traps using tee fitting with bottom outlet plugged or capped. Use nipple a minimum length of 3 pipe diameters, but not less than 3 inches long and same size as connected pipe. Install with space below bottom of drip to remove plug or cap. N. Extend relief vent connections for service regulators, line regulators, and overpressure protection devices to outdoors and terminate with weatherproof vent cap. O. Conceal pipe installations in walls, pipe spaces, utility spaces, above ceilings, below grade or floors, and in floor channels unless indicated to be exposed to view. P. Use eccentric reducer fittings to make reductions in pipe sizes. Install fittings with level side down. Q. Connect branch piping from top or side of horizontal piping. R. Install unions in pipes NPS 2 and smaller, adjacent to each valve, at final connection to each piece of equipment. S. Do not use natural-gas piping as grounding electrode. T. Install sleeves for piping penetrations of walls, ceilings, and floors. U. Install sleeve seals for piping penetrations of concrete walls and slabs. V. Install escutcheons for piping penetrations of walls, ceilings, and floors. 3.2 VALVE INSTALLATION A. Install manual gas shutoff valve for each gas appliance ahead of corrugated stainless-steel tubing or copper connector. B. Install regulators and overpressure protection devices with maintenance access space adequate for servicing and testing. 3.3 PIPING JOINT CONSTRUCTION A. Ream ends of pipes and tubes and remove burrs. B. Remove scale, slag, dirt, and debris from inside and outside of pipe and fittings before assembly. C. Threaded Joints: 1. Thread pipe with tapered pipe threads complying with ASME B Cut threads full and clean using sharp dies. 3. Ream threaded pipe ends to remove burrs and restore full inside diameter of pipe. City of Millersville FACILITY NATURAL-GAS PIPING Playground, Community Center, Amphitheatre OHM Project No /22/2010

21 4. Apply appropriate tape or thread compound to external pipe threads unless dryseal threading is specified. 5. 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. D. Welded Joints: 1. Construct joints according to AWS D10.12/D10.12M, using qualified processes and welding operators. 2. Bevel plain ends of steel pipe. 3. Patch factory-applied protective coating as recommended by manufacturer at field welds and where damage to coating occurs during construction. E. Brazed Joints: Construct joints according to AWS's "Brazing Handbook," "Pipe and Tube" Chapter. F. Flared Joints: Cut tubing with roll cutting tool. Flare tube end with tool to result in flare dimensions complying with SAE J513. Tighten finger tight, then use wrench. Do not overtighten. 3.4 HANGER AND SUPPORT INSTALLATION A. Comply with requirements for pipe hangers and supports specified in Division 23 Section "Hangers and Supports for HVAC Piping and Equipment." B. Install hangers for horizontal steel piping with the following maximum spacing and minimum rod sizes: 1. NPS 1 and Smaller: Maximum span, 96 inches; minimum rod size, 3/8 inch. 2. NPS 1-1/4: Maximum span, 108 inches; minimum rod size, 3/8 inch. 3. NPS 1-1/2 and NPS 2: Maximum span, 108 inches; minimum rod size, 3/8 inch. C. Install hangers for horizontal, corrugated stainless-steel tubing with the following maximum spacing and minimum rod sizes: 1. NPS 3/8: Maximum span, 48 inches; minimum rod size, 3/8 inch. 2. NPS 1/2: Maximum span, 72 inches; minimum rod size, 3/8 inch. 3. NPS 3/4 and Larger: Maximum span, 96 inches; minimum rod size, 3/8 inch. 3.5 CONNECTIONS A. Connect to utility's gas main according to utility's procedures and requirements. B. Install natural-gas piping electrically continuous, and bonded to gas appliance equipment grounding conductor of the circuit powering the appliance according to NFPA 70. C. Install piping adjacent to appliances to allow service and maintenance of appliances. City of Millersville FACILITY NATURAL-GAS PIPING Playground, Community Center, Amphitheatre OHM Project No /22/2010

22 D. Connect piping to appliances using manual gas shutoff valves and unions. Install valve within 72 inches of each gas-fired appliance and equipment. Install union between valve and appliances or equipment. E. Sediment Traps: Install tee fitting with capped nipple in bottom to form drip, as close as practical to inlet of each appliance. 3.6 LABELING AND IDENTIFYING A. Comply with requirements in Division 23 Section "Identification for HVAC Piping and Equipment" for piping and valve identification. B. Install detectable warning tape directly above gas piping, 12 inches below finished grade, except 6 inches below subgrade under pavements and slabs. 3.7 FIELD QUALITY CONTROL A. Test, inspect, and purge natural gas according to NFPA 54 and authorities having jurisdiction. B. Natural-gas piping will be considered defective if it does not pass tests and inspections. C. Prepare test and inspection reports. 3.8 INDOOR PIPING SCHEDULE A. Aboveground, branch piping NPS 1 and smaller shall be one of the following: 1. Corrugated stainless-steel tubing with mechanical fittings having socket or threaded ends to match adjacent piping. 2. Annealed-temper copper tube with wrought-copper fittings and brazed joints. 3. Steel pipe with malleable-iron fittings and threaded joints. B. Aboveground, distribution piping shall be one of the following: 1. Steel pipe with malleable-iron fittings and threaded joints. 2. Steel pipe with wrought-steel fittings and welded joints. C. Containment Conduit: Steel pipe with wrought-steel fittings and welded joints. Coat pipe and fittings with protective coating for steel piping. D. Containment Conduit Vent Piping: Steel pipe with malleable-iron fittings and threaded or wrought-steel fittings with welded joints. Coat underground pipe and fittings with protective coating for steel piping. 3.9 ABOVEGROUND MANUAL GAS SHUTOFF VALVE SCHEDULE A. Distribution piping valves for pipe sizes NPS 2 and smaller shall be one of the following: 1. One-piece, bronze ball valve with bronze trim. 2. Two-piece, full-port, bronze ball valves with bronze trim. City of Millersville FACILITY NATURAL-GAS PIPING Playground, Community Center, Amphitheatre OHM Project No /22/2010

23 3. Bronze plug valve. B. Valves in branch piping for single appliance shall be one of the following: 1. One-piece, bronze ball valve with bronze trim. 2. Two-piece, full-port, bronze ball valves with bronze trim. 3. Bronze plug valve. END OF SECTION City of Millersville FACILITY NATURAL-GAS PIPING Playground, Community Center, Amphitheatre OHM Project No /22/2010

24 MASONRY WALL REINFORCING SCHEDULE DESIGN LOADS : : : WALL & COLUMN FOOTING SCHEDULE C1A, C1B, C1C C2 C3 C4 C5

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31 NG N HG F G F1 F2 F3

32 INSULATION SCHEDULE ABBREVIATIONS PLUMBING LEGEND AND SYMBOLS PLUMBING FIXTURE SCHEDULE A PROPOSED EXISTING DEMOLITION B D E F H L M P R S T U V W PIPE HANGER SCHEDULE FIXTURE NOTES GENERAL PLUMBING NOTES NOTES

33 S-1 L-2 FD-1 EWC-1 EWC-1 FD-1 FD-1 FD-1 FD-1 FD-1 L-1 L-1 WC-1 WC-1 S-2 U-1 U-1 L-1 L-1 WC-1 WC-1 WC-1 WC-1 WC-1 WCO-1 WCO-1 WCO-1 WCO-1 L-2 L-2 L-2 DF-1 DN-1 RD-1 RD-1 HB-1 DF-1 HB-1 S-1 L-2 EWC-1 EWC-1 WC-1 WC-1 S-2 U-1 U-1 L-1 L-1 WC-1 WC-1 WC-1 WC-1 WC-1 L-2 L-2 L-2 WH-1

34 ABBREVIATIONS PIPING LEGEND HVAC LEGEND A K L B M C O D P E R VAV-10 F S G H T A DUCTWORK REQUIREMENTS V W DUCT SUPPORT DETAILS PRESSURE CLASS I PLAN DUCT WORK REQUIREMENT NOTES INSULATION SCHEDULE ELEVATION

35 EF-2 EF-2 EF-2 EF-1 RTU-1 RTU-2