Core Lab Consolidation Memorial Hermann Southwest SECTION MEDICAL PIPING AND PIPE LINE COMPONENTS

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1 PART 1 - GENERAL 1.1 WORK INCLUDED SECTION A. Furnish and test the following systems: 1. Oxygen (O2). 2. Vacuum (V). 3. Nitrous oxide (N2O). 4. Medical/clinical compressed air. (A) 5. Nitrogen (N2). 6. Carbon Dioxide (CO2) 7. Waste gas anesthesia gas disposal (W.A.G.D.) B. Outlets, valve boxes, valves, alarm systems, pressure and vacuum switches, and miscellaneous accessories for complete systems. C. Reserve oxygen manifold system. D. Emergency oxygen supply connection. E. Nitrous oxide manifold system. F. Nitrogen manifold system G. Pressure testing, cross connection testing and final testing, including purging, outlet flow and analyzing. H. Electrical wiring for ceiling columns/hose drops, alarms, and other electrical accessories associated with the system shall be furnished and installed under Division 16. I. Line voltage wiring by Division 16 J. Low voltage wiring by Division 15. Provide conductors and raceways as specified in Division RELATED WORK A. Section 15010: General Provisions B. Section 15050: Basic Materials and Methods C. Section 15485: Certification Procedure for Medical Gas Pipelines. D. Division 16: Electrical. 1.3 ITEMS TO BE FURNISHED FOR INSTALLATION BY OWNER/CONTRACTOR A. Cylinders for oxygen, nitrous oxide, and nitrogen, carbon dioxide shall be provided by gas supplier under a separate contract with the Owner

2 B. Bulk oxygen storage and control equipment (liquid and cylinder) shall be provided by oxygen supplier under a separate contract with the Owner, coordinate with Architect. C. Oxygen supplier shall make all final tie-ins after the contractor provides all piping to the oxygen pad. Only final connection to equipment can be brazed without the use of a nitrogen purge, unless purge port is provided at equipment. 1.4 SUBMITTALS A. Manufacturer's product data for all components indicating size, dimensions and configuration: 1. Operating instructions 2. Maintenance, service and repair data 3. Manufacturer's installation instructions. B. Brazer performance qualification test records for each brazer used on the installation. Brazers shall be qualified per PIPE, MGMC or AMGI with 37 minimum hours training. C. Manufacturer certification to indicate "medical oxygen service cleanliness" preparation for pipe and fittings. D. Project record drawings and lists recording actual locations of piping, valving and outlets. E. Independent "System Verification" testing report and certification including (1) a one-page management certification summary, (2) fully documented test data and analysis and (3) a test instrument quality assurance and calibration summary. "System Verification" report must document that each component in each individual system is complete and is functioning in accordance with NFPA 99. F. Submit proof of supplying pre-cleaned copper piping. Submit bills from suppliers. 1.5 CODE COMPLIANCE/QUALITY ASSURANCE A. Install in compliance with NFPA 99 and as required and enforced by authority having jurisdiction. B. Install bulk oxygen system in compliance with NFPA 50. C. Comply with local, state and federal codes applicable in this jurisdiction. D. Employ only qualified journeymen for this work. Employ a competent qualified mechanic/piping foreman, who has satisfactorily completed at least five other similar installations, for this work. Qualification of brazers shall meet the installation requirements per NFPA 99. E. All individuals engaged in installing gas piping systems shall have a medical gas endorsement issued by the Texas State Board of Plumbing Examiners. 1.6 COORDINATION A. Coordinate with other trades to assure timely installations and to avoid conflicts and interference

3 B. Work closely with the metal stud partition installer and/or mason to assure that anchors, sleeves and similar items are provided in sufficient time to avoid delays; chases and openings are properly sized and prepared. C. Coordinate layout of medical gas systems in all spaces and identify all piping accurately and as specified in Section MEDICAL GAS ALARM SYSTEM A. All local, master, and area alarm panels shall have a separate visual indicator for each condition monitored. Each alarm panel shall have a cancelable audible indicator that produces a minimum of 80 dba measured at 3 feet from panel. B. All local, master and area alarm panels shall indicate visually and audible if the wiring to the sensor or switch is disconnected or the monitored condition occurs. C. The local, master and area alarm panels shall be powered from the life safety branch of the emergency system. D. All pressure switches and/or sensors shall have a demand check fitting for testing, servicing or replacement. E. Wiring from switches, to be in parallel and direct to each master alarms. Refer to electrical master alarm panel wiring diagram. F. Wiring for master alarms shall be protected by conduit or raceway as per NFPA 70. PART 2 - PRODUCTS 2.1 ACCEPTABLE MANUFACTURERS A. Piping System Components: 1. Beacon Medaes 2. Allied Health Products, Chemetron Division. 3. Manufacturer's model numbers are used to establish product quality and scope, not to limit competition. 2.2 QUALIFICATION OF MANUFACTURER A. Pipeline System Components: 1. One manufacturer shall supply the medical gas piping system components to include outlets, valves and gauges, valve boxes, alarm boxes, nitrous oxide manifold system, nitrogen manifold system, reserve oxygen manifold system, and nitrogen control cabinet. 2. Component manufacturer shall have a pipeline system engineer or product specialist available to periodically check with the Contractor during installation of pipeline system equipment and provide a service organization to certify the system in accordance with Chapter 4 of NFPA Provide ongoing service support to the Owner's Representative after acceptance of system

4 2.3 PIPING MATERIALS A. Piping: Seamless Type K or L (ASTM B819) copper tubing, in accordance with NFPA 99 Chapter 4. Type K (ASTM B19) copper tubing for system over 200 PSI in accordance with NFPA 99, Chapter 4. Piping shall be pre-cleaned and plugged by supplier before shipment to jobsite. Piping on-site cleaning shall not be permitted. Pipe materials markings by manufacturer shall not be defaced. Pipe markings shall be OXY, MED, OXY/MED, OXY/ACR, or ACR/MED as required by NFPA 99C. B. Medical air system intake, medical vacuum systems, vacuum exhaust, oral evacuation system, oral evacuation exhaust, anesthesia evacuation system and anesthesia evacuation exhaust pipe shall be ASTM B 88, B 280, or B 819 Type "K", "L", or "M" hard drawn copper tube with wrought copper fittings. " Medical oxygen service cleanliness" is not required for this pipe. C. Fittings: Wrought copper, brass or bronze designed expressly for brazed connection. Fittings shall be precleaned and sealed by the manufacturer, prior to shipping to job site. On site cleaning shall not be permitted. Cast fittings shall not be used for brazed joints. Flared and compressiontype connections shall be prohibited throughout the piping system. D. Silver brazing material: Stay-Silv-15, Silvaloy-15, Aircosil No. 15, or Sil-Fos Silver brazing alloy composition: 15% silver, 80% copper, and 5% phosphorus, no cadmium. 2. Minimum of 1000 degrees F liquid melting point with ASTM rating of "BCuP5". 3. The use of flux is prohibited for the making of joints between copper to copper pipes and fittings. Appropriate flux similar to "Stay-Silv-Black Flux" or "Stay-Silv-White Flux" is required between dissimilar metals such as copper to brass or bronze material, when parts are heated over a prolonged period. Use flux sparingly. Apply only a thin coat of flux to minimize possibility of flux contaminating piping system. E. Flux: Do not use for copper-to-copper joints. Use flux for joining copper to brass or bronze. In those cases where flux is used, exercise particular care in applying the flux to avoid leaving any excess inside the completed joints. F. Isolation of copper tubing from dissimilar metal shall be accomplished through use of PHD Manufacturing, model #2506 Unistrut clamps with PVC inserts or PHD model no. 153 PVC coated tear drop hangers. 2.4 LIQUID OXYGEN STATION A. The liquid oxygen station shall be provided by the oxygen supplier under separate contract with the Owner. B. Furnish the concrete equipment pad, concrete delivery pad and fencing under other Divisions of these specifications. C. Furnish and install lighting, electrical power connections associated with the alarm systems under Division 16. D. Install main oxygen line, main line valve, stub-up at the park, as well as the emergency oxygen supply line and components per NFPA 99 as indicated on the drawings. E. Provide alarm/monitoring wiring under Division 15 in accordance with vendor requirements

5 2.5 EMERGENCY OXYGEN SUPPLY CONNECTION A. Provide an emergency oxygen supply connection (low pressure) as follows: 1. Emergency Oxygen Inlet, Beacon Medaes Part # (surface mount); # (recessed). 2. Relief Valve, 75 psi, 1", Beacon Medaes Part # Check valve, 1", Beacon Medaes Part # Check valve, 1-1/2", Beacon Medaes # Check valve, 2", Beacon Medaes Part # Check valve, 3", Beacon Medaes Part # HIGH PRESSURE CYLINDER MANIFOLDS A. Provide automatic manifold control including self-shifting to secondary reserve bank on exhaustion of primary bank and automatic reset of replaced bank to secondary reserve status. B. Incorporate actuating switches in control for the purpose of actuating designated signal to master panel when service bank is exhausted. C. Incorporate in control unit a visible means of determining when either bank is exhausted and operation has automatically switched to "reserve in use". 1. Visible indication shall be by red light over exhausted bank and by gauges showing remainder pressure in each bank. 2. Continuous visible indication of electrical circuits in effective operation shall be by means of green light. 3. Mechanical means shall be provided to ensure the connection of cylinders containing the proper gas to the manifold. 4. Line pressure shall be shown by separate visible gauge. Manifolds shall be installed as shown on drawings. 5. Each manifold shall meet the requirements of Chapter 4 of NFPA 99C. D. Oxygen manifolds: 1. Beacon Medaes # XX, to accommodate XX cylinders. Divided into 2 equal banks. E. Nitrous oxide (N20) manifold: 1. Beacon Medaes # XX (with heater) to accommodate XX cylinders divided into 2 equal banks. F. Nitrogen (N2) manifold: 1. Beacon Medaes # XX to accommodate XX cylinders divided into 2 equal banks. G. Carbon dioxide (CO2) manifold: 1. Beacon Medaes # XX (with heater), to accommodate (*Alternate ((10) (12) (16) (Other)) cylinders to accommodate divided into 2 equal banks. 2.7 LOW PRESSURE LIQUIFIED CYLINDERS MANIFOLD WITH RESERVE A. The automatic manifold control shall changeover from the exhausted "primary supply" bank to the "secondary supply" bank automatically without any fluctuations in line pressure

6 B. The control unit shall incorporate special cryogenic regulators to prevent regulator freeze up under high-flow conditions. The control section shall include a main regulator, adjustable from 40 to 85 psig for oxygen, nitrous oxide and carbon dioxide, and 80 to 180 psig for nitrogen. C. The control section shall include an economizer gas circuit to utilize accumulated excess pressure from the secondary supply bank, preventing the exhausting of useful gas into the atmosphere. When the gas pressure in the secondary supply bank rises approximately 50 psig above that of the primary supply bank, gas shall flow from the secondary supply bank through the economizer circuit to the inlet of the control section regulator. D. The control section shall have a green "system normal" lamp to indicate the primary supply bank is functioning and a red "replace depleted bank" lamp to indicate that changeover to the secondary supply has occurred. E. Incorporate actuating switches in control for the purpose of actuating designated signal to master panel when service bank is exhausted. 1. Continuous visible indication of electrical circuits in effective operation shall be by means of green light. 2. Mechanical means shall be provided to ensure the connection of cylinders containing the proper gas to the manifold. 3. Line pressure shall be shown by separate visible gauge. Manifold shall be installed as shown on the Drawings. 4. Each manifold shall meet the requirements of Chapter 4 of NFPA 99C. F. Oxygen (02) Manifold: 1. Beacon Medaes # XX, to accommodate (*Alternate ((10) (12) (16) (Other: ) *) cylinders, divided into 2 equal banks. G. Nitrous Oxide (N20) Manifold: 1. Beacon Medaes # XX, to accommodate (* Alternate ((10) (12) (16) (Other: ) *) cylinders, divided into 2 equal banks. H. Nitrogen (N2) Manifold: 1. Beacon Medaes # XX, to accommodate (* Alternate ((10) (12) (16) (Other: ) *) cylinders, divided into 2 equal banks. I. Carbon Dioxide (CO2) Manifold: 1. Beacon Medaes # XX, to accommodate (* Alternate ((10) (12) (16) (Other: ) *) cylinders, divided into 2 equal banks MEDICAL GAS OUTLET STATIONS A. Quick-Connect Recessed Wall Outlets: 1. Beacon Medaes, Series #6-1210XX Contractor shall install one (1) vacuum slide per vacuum wall outlet unless noted otherwise on drawings. 3. Medical gas outlet stations shall be modular, quick-disconnect recessed type. Outlet stations shall be field-assembled with sequences and services indicated. Centerline spacing of multiple outlets shall be 4-1/2" minimum

7 4. Outlet stations for medical gases shall have a die cast, light gray, epoxy power-coated cover plate. The cover plate assembly shall contain quick connect latch release mechanism. a. Furnish indexing pins for safety keying and gas-specific cover plate to the appropriate rough-in box, with color coded gas service identification. The safetykeying index pins shall be permanently captured between the cover plate and latch assembly. 5. The latch mechanisms shall be designed for one-handed, single thrust mounting and one-handed finger tip release of secondary equipment. a. The outlet stations shall be capable of supporting common secondary equipment; including suction regulator and half-gallon collection bottle, without the use of slide brackets. 6. The cover plate shall attach to the primary valve assembly. The primary valve body shall be threaded into the rough-in box separately from the cover plate to facilitate leak-testing around the valve. a. The primary valve body shall be made of brass and shall be adjustable to compensate for variation in plaster thickness. b. Provide an O-ring within the valve to seal mating adapter plugs. Future replacement of the O-ring shall not require disassembly of the cover plate. c. The primary valve poppet shall be self-sealing in service, requiring no dust cap or cover. 7. Each rough-in box shall contain a base and tube assembly consisting of a Type K copper pigtail, flared to accept (1/4" ID/ 3/8" O.D.) OD supply line, brass block and base housing a secondary check valve in accordance with NFPA 45F (not required in vacuum), primary valve O-ring seal, check valve deflator spring (except vacuum), pressure testing cap plug, and plaster shield. The copper inlet tube shall be capable of rotating 360 degrees to adjust for field piping conditions. 8. Medical gas outlets shall be cleaned for oxygen service in accordance with CGA Pamphlet G-4.1. a. The assembly shall be covered for shipment. The outlet assembly shall bear the label of listing under Re-examination Service of Underwriters Laboratory. 9. Quantity and gas type shall be provided as indicated. B. Quick-connect console outlets: 1. Beacon Medaes #6-1210XX-00 complete assembly with optional cover plate # X- 00 to fit console. Coordinate with Division Quick connect and pin key indexing shall match wall outlet type. C. Nitrogen Control Cabinet: 1. Beacon Medaes # (Horizontal); # (Vertical). 2. Nitrogen control panel shall be designed to deliver variable pressures to power pneumatic surgical tools. The unit shall have inlet supply gauge, 0 to 300 psig (kpa to 2067 kpa), to indicate the supply line pressure. 3. Located immediately upstream of this gauge shall be a supply line shut-off valve, rated at not less than 300 psig, (2067 kpa) pressure. A quarter turn of the valve handle shall be required to obtain a fully "open" or "closed" position. 4. An adjustable relieving type pressure regulator, with an operating range of 12 to 250 psig (15 kpa to kpa) shall provide required pressure to the nitrogen service outlet

8 5. Furnish an outlet supply gauge, 0 to 300 psig (0 kpa to 2067 kpa), to give indication of the outlet pressure being supplied to the outlets. a. The nitrogen control panel shall be pre-piped internally requiring only external supply line connections. Additional outlets in the same room may be connected to the remote outlet pigtail furnished in the control panel. b. Remote outlets shall be regulated by the adjustable pressure regulator within the panel and shall match the nitrogen control panel outlet. 6. The control panel shall have a pressure relieving DISS connector outlet. 7. Assembly shall be U.L. Listed. D. Hose Drop Assemblies: 1. Beacon Medaes: Type # X-XX. Hose drops to have # retractors. 2. Hose assemblies shall use gas specific color coded hose that meets or exceeds conductivity requirements specified in NFPA 56A, (NFPA 99, Chapter 3). a. Hose assembly shall consist of a D.I.S.S. female fitting for attaching to the ceiling outlet, a hose retractor and Puritan Bennett quick-connect coupler (Dyna-Con for Nitrogen) with inherent primary and secondary check valves, for attaching to hoses connected to patient care equipment. 3. Hose assemblies are to be supplied for a finished ceiling height as indicated on drawings. 4. Coordinate length of hose with owner. Hoses shall have a minimum burst pressure of 1000 psi. E. Modular Rigid Surgery Column 1. Beacon Medaes #6-CCF-XX with Medaes/HillRom type outlets. 2. Rigid surgery column shall be Owner furnished, Contractor installed. 3. U.L. listed, modular design allowing combinations of gas and electrical kits to be arranged on job site and allow for future kit installation in unoccupied modules. 4. Include the following outlets in column: a. Oxygen. b. Nitrous oxide. c. Vacuum. d. Air. e. Nitrogen Gas Kits. f. Evacuation. g. Carbon dioxide. Outlets shall be Quick Connect D.I.S.S. h. Hospital grade straight blade receptacles, Hubble No.8300 Explosion-proof electrical kit. Coordinate color requirements with Div.16. i. Twist-Lock power receptacles, Hubble No j. Blank plate kit. k. 37-pin monitoring kit - Cannon No. RFK 37-31SL: l. Ground receptacle kit - Hampden Type SLR-3S. m. Two 5-pin monitoring kits - Amphenol No. MS-3100A-14S-5S. n. I.V. hook kit. 5. Design column for ceiling height indicated on drawings. 6. Contractor shall coordinate with Owner's Representative the exact number and location of column accessories. F. Retractable Surgery Column 1. Beacon Medaes #6-CCM-XX. 2. Retractable surgery column shall be Owner furnished, Contractor installed

9 3. Manually operated type and consist of a rigid upper section and a telescoping lower section, capable of an 18" movement. Both sections shall be of No. 4 satin-finish stainless steel. Provide a removable access panel on both the upper and lower sections. 4. Include the following factory installed services: a. Oxygen. b. Nitrous oxide. c. Vacuum. d. Air. e. Carbon dioxide. f. Evacuation. g. Nitrogen gas kits. h. Outlets shall be Quick-Connect D.I.S.S. i. Hospital grade straight blade receptacles, Hubble No.8300 Coordinate color requirements with Div.16. j. Twist-Lock power receptacles, Hubble No k. Blank plate kit. l. 37-pin monitoring kit - Cannon No. RFK 37-31SL: m. Ground receptacle kit - Hampden Type SLR-3S. n. Two 5-pin monitoring kits - Amphenol No. MS-3100A-14S-5S. o. I.V. hook kit. 5. Design for ceiling height indicated on drawings. 6. Monitor receptacles: Field wired by monitor supplier. G. Provide Hansen Air Quick Disconnect in lieu of D.I.S.S. connection on all nitrogen outlets over 200 PSI. H. Grounding: Contractor shall coordinate grounding of all outlets with Division 16. I. Where renovation projects occur and prior to receipt of medical gas outlets, contractor shall confirm compatibility of specified outlets with existing project equipment requirements. Notify Architect/Engineer if incompatibility is discovered. 2.9 MEDICAL GAS VALVING A. Main, source, base of riser and service shutoff valves (Valves Not in Boxes) 1. Valves and tubing shall be specially prepared for oxygen service and shall conform in all particulars to NFPA Valves shall be quarter-turn ball-type, with extensions for brazing, Teflon seats and adjustable stem packing gland with Teflon stem seal, through 2". 2-1/2" to 3" valves shall have Teflon seats and double Teflon stem seal. 4-inch valves shall have Buna-N ball seats. Valves shall be three piece type with full ports. 3. Ball valves shall be rated at 400 psig, actuate from full "ON" to full "OFF" by 90 degrees turn of vinyl gripped valve handle. Factory installed copper tubing shall be extended sufficiently to help prevent valve seat damage during soldering. Threaded joints are not acceptable for medical gas valves. 4. Valves manufacturer: a. Beacon Medaes # X-XX (1/2" - 2"); # X-XX (2-1/2" - 4"). 5. Service shutoff valves shall have lockable handles (locks provided by owner) and tagged to prevent accidental opening and closing. 6. Main valve shall be located to permit access by authorized personnel only. The main valve shall be located outside the source room. When the source valve is accessible from within the building a main valve shall not be required

10 7. Provide ball valves with gauge ports and plugs. B. Area/Zone Valves (Valves in Boxes) 1. Zone valve boxes shall be constructed of extruded aluminum or 18 gauge sheet steel with air dried lacquer finish. The cover frame shall be made of an anodized aluminum and attached to the box by concealed screws. The finished assembly shall be substantially dust-tight. The frame assembly shall be capable of adjusting for variances in wall thickness up to one inch. The frame assembly shall contain an easily removable smoked cover window with pull ring. The window shall conceal exposed piping and valves within the box and shall be labeled "Caution - Medical Gas Control Valves - Close Only in Emergency". Tinted transparent window shall be provided to display the gas service, the area controlled by the valve, and pressure gauges on units so equipped. 2. Frames for valve boxes shall have uniform width for balanced appearance. Manufacturer shall provide color-coded self adhesive gas service labels for compliance with NFPA 99 labeling requirements. Apply labels to each valve within the assembly for proper gas service identification according to the manufacturer's instructions. 3. Placement of the valve within the zone valve box shall be such that the removable window cannot be replaced when any valve is closed. Factory installed Type K copper pipe extensions shall extend three (3) inches outside the valve box. Design of the valve box shall be such that valves may be removed prior to brazing, without disassembly of the box, to permit field rearrangement of valves if necessary. Valves shall be ball type, cleaned for oxygen service, supplied with capped ends, and shall operate full open to closed position with 90 degree handle rotation. Wall depth to ream in the same (3-7/8") with all valves boxes. 4. Valve boxes shall include 1-1/2" pressure gauges reading psig for oxygen, nitrous oxide and air; psi for nitrogen, and 0-30" Hg for vacuum or evacuation vacuum. The gauge port shall be equipped with removable plug for pressure testing prior to final assembly of gauge. 5. Gauge model zone valve box assemblies shall read pressure downstream of the valve per NPFA Valve boxes: a. Beacon Medaes #6-150XXX-00 with # X-00 gauges. 7. Provide individual medical gas valve identification as follows: 8. Installer shall provide identification for valves in box to identify room name and room numbers per Owner's Representative graphic and or signage package MEDICAL GAS ALARM SYSTEMS (M.A.P.) A. Master Alarm Panel (Multi-Signal) 1. The master alarm panels shall be designed to meet the requirements of NFPA and CGA. Alarms shall be U.L. Listed as an assembly and shall include factory wiring, transformers, and circuitry requiring only 115 or 230 volt primary power. Internal voltage shall be stepped down to either 24 or 12 volt closed, control circuit power. Wiring to external switches shall also be at the stepped down voltage. 2. The master alarm panel shall be wired to remote switches for its signal source. External switches shall be normally closed type, or any combination of NO or NC contacts. Builtin switches for selecting external contact type shall be factory set for closed circuitry wiring. The alarm shall be modular in design, capable of accepting input signals for wiring to remote switches monitoring the integrity of supply systems, or any other critical systems that can be monitored with a switch

11 3. Each signal shall be labeled for its function using labels provided with the unit. Adjacent to each signal held will be a highly brilliant, red, indicator light to signify activity of the alarm. Activation of any switch will light lamp or LED and actuate the audio alarm. 4. Each signal module shall contain an independent "power on" light consisting of green lamp or LED's and a test button for a full circuit "test" of audio and visual signals. 5. Each module shall have a locking type quick-connect electrical terminal for servicing without shutting down the system. 6. The audio signal may be canceled only by the "alarm silence" button or fault correction. Visual indicator shall not be canceled. 7. The master alarm panel and its appropriate gauges and switches per NFPA 99, shall be provided to signal the following conditions: a. O2 Line Pressure High b. O2 Line Pressure Low c. O2 (Bulk Liquid) Level Low d. O2 Reserve Supply In Use e. O2 Reserve Pressure Low f. N2O Line Pressure High g. N2O Line Pressure Low h. N2O Reserve In Use i. N20 (Bulk Liquid) Level Low j. N20 Reserve Pressure Low k. Air Line Pressure High l. Air Line Pressure Low m. Air Dew point Level High n. Air Compressor Local Alarm. o. Vac Line Vacuum Low p. Vacuum Pump Local Alarm q. N2 Line Pressure High r. N2 Line Pressure Low s. N2 Reserve Supply In Use t. N2 Reserve Pressure Low u. Air compressor receiver/separator level Hi. v. CO2 Line Pressure High w. CO2 Line Pressure Low x. CO2 Reserve in Use y. CO2 Reserve Pressure Low z. O2 Secondary in Use aa. N2 Secondary in Use ab. Air Carbon Monoxide high ac. Air Compressor reserve in use ad. Air Compressor thermal shutdown 8. M.A.P shall have enough points of connection to properly monitor all systems plus XXX extra points for future. 9. Install one master alarm panel in a location under 24 hour surveillance (PBX, Security Office, Emergency Room, etc.) as shown. A duplicate alarm panel shall be installed in the hospital engineering office. A PC System is not a second alarm panel. 10. Furnish and install the alarm system and associated signal wiring with Division Termination of signal wire at alarm location by manufacturer. 12. Beacon Medaes Series

12 B. Air compressor and vacuum pump local alarm. 1. A local alarm panel shall be located adjacent to, or incorporated into the control panel for the air compressor and vacuum pump, with visual and audible indicators. 2. When more than one pump package serves the facility, or are at different locations, then a local alarm panel that combines all the signals from all the machinery shall be provided, or have a local alarm panel at each machinery site. 3. The air compressor shall alarm the minimum following functions: a. Backup compressor operating b. High liquid level in receiver (for liquiding compressor only) c. High liquid level in separator (for liquid ring compressors only) d. High discharge air temperature. e. High carbon monoxide level. 4. The vacuum pump shall alarm the minimum following functions. a. Backup vacuum pump operating. 5. At least one signal from the local alarm shall connect to both master alarm panels indicating a problem with the source equipment. 6. Dew point shall be alarmed in the machine room for a local alarm and also at the master panels. Dew point monitor to be located in the air supply at the compressors immediately downstream of the system air pressure regulator. 7. Carbon monoxide monitor to be located in the air supply at the compressors immediately located downstream of the system air pressure regulator. C. Area Alarm (Line Pressure Alarm) -Digital 1. The area alarm as required by the NFPA 99, CSA standard Z and shall be U.L. Listed. The alarm shall meet the Federal Electromagnetic Compatibility Standard for Medical Devices to reduce the possibility of magnetic radiation interference with other equipment interference. Each area alarm shall include one power supply module, a sensor module for each specific gas, one digital module for each specific gas. 2. The power supply module shall be capable of eight digital modules and converting 115/120VAC to low voltage DC. This module to contain a fuse to protect the system from voltage and amperage surges and yellow POWER ON indicator. Each power module shall provide an audible signal activated by a fault signal at the Digital Module. 3. The Digital Module shall provide an audible and visual signal when an advisory or a fault signal is received. An audible alarm silencing switch shall be available, and automatically canceled when the fault is correct. Signal limits shall be factory set, with the ability to be field adjusted without the use of tools. The display shall be programmable to read psig, in. Hg or kpa. Digital modules shall provide three additional audible and visual signals with the ability to field label and function as a master alarm. 4. The Sensor Module shall contain a transducer capable of providing calibrated signals to the Digital Module. Sensor Modules shall be gas specific and capable of mounting directly in the gas pipeline system, either in the ceiling or directly above the Digital Module in standard wall construction. Pipeline connections shall be 3/8" nominal copper tubing. Connectors shall be provided for attaching field wiring. Sensors shall be capable of being removed without shutting down the medical gas system. 5. Furnish and install the alarm. Coordinate the power wiring with Division Termination of signal wire at alarm location by manufacturer. 7. Beacon Medaes Series

13 PART 3 - EXECUTION 3.1 IDENTIFICATION A. Paint piping as specified in Section B. Prior to cutting into existing system. Certifier shall perform a PPM white cloth test to certify that existing system is clean and free of contamination. 3.2 INSTALLATION A. Joints in the piping, except those at equipment requiring screwed connections, shall be made with silver brazing alloy or similar high melting point (above 1000 degrees F) brazing metal. B. Contractor shall provide a copy of the installers brazing certificate to the engineer of record prior to any installation. Certification and training shall be in accordance with ASME Section 9 or AWS B2.2 and to assure that the pipeline certification report and installation complies with all Chapters of NFPA 99 Latest Edition. C. During the brazing of pipe connections, the interior of the pipe shall be purged continuously with 5 SCFH of oil free nitrogen (NF) to prevent the formation of copper oxide inside the joint. The flow of purge gas shall be maintained until the joint is cool to the touch. Hold pipe full of nitrogen at night. The outside of the tube and fittings shall be cleaned by washing with hot water after assembly, and prior to inspection of joints and pressure testing. D. Threaded joints in piping systems shall be made up with polytetrafluorethylene (such as Teflon) tape or other thread sealants suitable for oxygen service. Apply sealants to the male threads only. E. Sand cloth/sand paper type abrasive cleaning material shall not be allowed. Joints shall be cleaned with scotch brite pads prior to brazing. F. All installation tools shall be cleaned and oil free before installation of piping. Tools shall remain clean during all medical gas system piping installation. G. All piping/valves and components shall be inspected prior to erection. If found to be contaminated they shall not be installed in the medical gas piping system. H. All pipe ends shall be cut square, and deburred with a sharp clean deburring tool. Care shall be taken to prevent chips from entering the tube or pipe. I. Support medical gas piping at distances listed per NFPA-99. Piping shall not be supported from other piping. Unistrut type trapeze hangers shall contain plastic inserts to isolate medical gas piping from dissimilar metals and straps. 1. Isolate copper piping from dissimilar metals. Do not use duct tape as an isolation material. Where medical gas piping is in contact with construction materials. Wrap the exposed medical gas piping with 20 mil thick adhesive polyken brand protective wrap. Wrap shall extend 6" either side of contact point. J. After installation of the piping, but before installation of the outlet valves, blow lines clear by means of oil-free dry air or nitrogen (NF)

14 K. The qualified brazer shall inspect the piping system for: 1. Flux or flux residue 2. Excessive oxidation of all joints. 3. Presence of unmelted filler metal 4. Failure of the filler metal to be clearly visible all around the joint at interface between the socket and the tube. 5. Cracks in the tube or component. 6. Cracks in the braze filler metal. 7. Failure of the joint to hold the test pressure per NFPA 99 standing pressure test. L. Piping protection: 1. Piping shall be protected against freezing, corrosion, and physical damage. Buried piping outside of buildings shall be installed below the level of frost penetration. Piping shall be installed in a continuous PVC Sch-40 encasement when installed below grade. Continuous encasement sleeves shall terminate above slab level at both ends. Encasement shall be sealed water tight on each end. 2. Buried piping that will be subject to surface loads shall be buried at a sufficient depth to protect the piping from excessive stresses. Ducts or casings shall be used in road way, drive way, parking lots or other areas subject to surface loading. 3. The minimum backfilled cover above the top of buried piping outside of buildings shall be 36 in. (91.4 cm), except that the minimum cover shall be permitted to be reduced to 18 in. (45.7 cm) where physical damage to the piping is not likely to occur. Trenches shall be excavated so that the pipe has a firm, substantially continuous bearing on the bottom of the trench. Underground piping shall be installed in a continuous split enclosure (such as foamglass) to protect the pipe from damage while backfilling. Backfill shall be clean and compacted so as to protect and uniformly support the piping. 4. A continuous tape or marker, placed immediately above the enclosure, shall clearly identify the pipeline by specific name. In addition, a continuous tape or warning means shall be provided above the pipeline at approximately one-half the depth of bury. 5. Where underground piping is installed through a wall/floor sleeves, the ends of the sleeve shall be sealed to prevent the entrance of ground water. 6. Piping exposed to physical damage shall be adequately protected. 7. Medical gas piping shall be protected from contact with concrete floor slabs and other building materials, acceptable means shall be PVC encasement sleeves and or Polyken brand 20 mil thick adhesive wrap, extending 6" either side of contact surfaces. M. Contractor shall instruct Owner's Representative to obtain certificate from oxygen supplier that the supplier's piping has been installed per brazing and purging requirements per NFPA 99. Oxygen supplier shall clean piping and equipment per pamphlet CGAG-4.1 before connection to certified pipeline system supplied by Contractor. Contractor shall verify cleaning of oxygen supplier piping from bulk system before making final connection to house system. 3.3 INSTALLATION OF EMERGENCY OXYGEN SUPPLY CONNECTION A. Install emergency oxygen supply connection (low pressure type) in location and per detail as set forth on plumbing drawings. Test connection in conjunction with other tests and inspections set forth in this section

15 3.4 INSTALLER PERFORMANCE TESTING A. After installation of the piping and valves, but before installation of the service outlets, alarm actuating switches and gauges, and before piping and valves are concealed in walls or ceiling the line shall be blown clear by means of oil-free, dry air or nitrogen. B. Next, with station outlets with test caps in place each section of the piping system shall be subjected to a test pressure of one and one-half (1-1/2) times the maximum working pressure, but not less than 150 psig, with oil-free dry air or nitrogen. At no time shall any two medical gas pipelines be interconnected for testing such as a piping manifold. Maintain test pressure for at least 24 hours. Then each joint shall be examined for leakage by means of soapy water or other effective means of leak detection safe for use with oxygen. The main line shut-off valve shall be closed during the test. C. Repair leaks and retest the section. D. After completing the testing of each individual piping system, all of the medical gas systems shall be subjected to a pressure test at one and one-half (1-1/2) times the maximum working pressure, but not less than 150 psig. The test gas shall be oil-free, dry air or nitrogen. The main line shut-off valve shall be closed during the test. E. After completion of the above test procedure the finishing assemblies of alarms, and all components (e.g. pressure switches, gauges, relief valves, etc.) shall be installed and all medical gas piping systems shall be subjected to a 24 hour standing pressure test at 20% above the normal operating line pressure. The main line shut-off valve shall be closed during this test. F. Leaks, if any, shall be located, repaired, and the system retested. G. Purge testing of each medical gas outlet at a minimum rate of 225 LPM shall be performed with a white cloth loosely held over the adaptor until purge produces no discoloration of the white cloth. H. To determine that no cross connection to other pipeline systems exists, reduce all systems to atmospheric pressure. Disconnect all sources to test gas from all of the systems with the exception of the one system to be checked. Pressure this system with nitrogen to a pressure of 50 psig. With appropriate adapters matching outlet labels, check each individual station outlet of all systems installed to determine that test gas is being dispensed from only the outlets of this system. END OF SECTION