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X h indicator light to signify activity of the alarm. Activation of any alarm will light ;ts [:ED and c;ct;,;or;e the audio alarm.
w C- - 4. Each signal module shall contain an independent °power on° light consisting of green'LED's and "d 'te'st button for a full circuit °test° of - -
w �� MEDICAL GAS SPECIFICATION
Z h PART 1 - GENERAL audio and visual signals.
UJ 1.01 W R�C IN'Ll,J DED 5. Each module shall have a locking type quick-connect o electrical terminal for servic-iris , �wi i':�aut , .411-J Ling down the system.
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Z h � . r lJrnish and test the following systems. 6. The audio signal may be cancelled only by the alarm silence button of fault correcfiori. Canceling the visual signal will require a correction
Z w 1. Oxygen (02). of the source of the alarm.
B. Outlets, valve boxes, valves, alarm systems, pressure and vacuum switches, and miscellaneous accessories for complete systems. 7. The master alarm panel and its appropriate gauges and switches per NFPA 99, shall b,e- ,provided to signal the following conditions:
C. Emergency oxygen supply connection. a. 02 Line Pressure High
o D. Pressure testing, cross connection testing and final testing, including purging, outlet flow and analyzing. b. 02 Line Pressure Low
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(I- o E. Electrical wiring for ceiling columns/hose drops, alarms, and other electrical accessories associated with the system c. 02 (Bulk Liquid) Level Low
J d. 02 Reserve Supply In Use
n __J w a_ 1.02 SUBMITTALS e. 02 Reserve Pressure Low b Z
zQ o A. Manufacturer's product data for all components indicating size, dimensions and configuration: f. N20 Line Pressure High a M ^+
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g. N20 Line Pressure Low � W a �
z w 1. Operating instructions h. N20 Reserve In Use
i. N20 Reserve Pressure Low L
L o a- o 2. Maintenance, service and repair data j. Air Line Pressure High E, W ,�
3. Manufacturers installation instructions. K. Air Line Pressure Low ,� 4 ,1
B. Brozer performance qualification test records for each brazer used on the installation. Brozers shall be qualified per PIPE, MGMC or I. Air DewPoint Level High Z
m. Air Compre sor Local Alarm.
F.
AMGI with 37 minimum hours training. n. Medical air alter system blocked. ' N P"
o. Vac Line Vacuum Low v ON
C. Manufacturer or cleaning service company certification to "medical oxygen service cleanliness° preparation for pipe and fittings. p. Vac Filter Change Required
q. Vacuum Pump Local Alarm z 3
D. Project record drawings and lists recording actual locations of piping, volving and outlets. N2 r. Line Pressure High
S. N Line ressure Low z ® A
E. Independent "System Verification" testing report and certification including (1) a one-page management certification summary, (2) fully t. N2 Reserve Supply In Use
documented test data and analysis and (3) a test instrument quality assurance and calibration summary. 'System Verification" report must u. N2 Reserve Pressure Low
Y Y Y• Y v. CO2 Line Pressure High U W
document that each opponent in each individual system is compote and is functioning in accordance with NFPA 99. w. CO2 Line Pressure Low
F. Submit proof of supplying pre-cleaned copper piping. Submit bills from supplies. x. CO2 Reserve in Use
y. 0O2 Reserve Pressure Low
1.03 CODE COMPLIANCE/QUALITY ASSURANCE 8. In addition, a blank module for adding up to six additional signals for future use shall be provided. if the addition of future signals require
A. Install in compliance NFPA 99, Chapter 4 as required and enforced by authority having jurisdiction. penetration of the wall. If future signals may be added without penetrating the walk, no spare signals are required.
9. One master alarm panel shall be installed in a location under 24- hour surveillance (PBX, Security Office, Emergency Room, etc.) as indicated on
B. Comply with local, state and federal codes applicable in this jurisdiction. plans. A duplicate alarm panel shall be installed in the hospital engineering office. A PC system is not a second master alarm panel.
C. Employ only qualified journeymen for this work. Employ a competent qualified mechanic/piping foreman, who has satisfactorily completed at PART 3 - EXECUTION
least five other similar installations, for this work. Qualification of brozers shall meet the installation requirements per NFPA 99. 3.01 IDENTIFICATION
A. Label piping every 10 ft. and at least once in every room in accordance with NFPA 99.
1.04 MEDICAL GAS ALARM SYSTEM B. Prior to cutting into existing system. Certifier shall perform a PPM and white cloth test to certify that existing system is clean and
A. Master alarm panels shall have a separate visual indicator for each condition monitored. Each alarm panel shall have a cancelable audible free of contamination.
indicator that produces a minimum of 80 dBA measured at 3 feet from panel. 3.02 INSTALLATION
A. Joints in the piping, except those at equipment requiring screwed connections, shall be made with silver brazing alloy or similar high melting
B. Master alarm panels shall indicate visually and audible if the wiring to the sensor or switch is disconnected or the monitored condition point (at least 1000 degrees F) brazing metal.
occurs. B. Contractor shall provide a report from a qualified brazer certified and trained in accordance with ASME Section 9 or AWS B2.2 and to ••••����•
C. The master alarm panels shall be y branch of the emergency system. p moral,,
powered from the life safet assure that the pipeline certification report and installation complies with all Chapters of NFPA 99 Latest Edition
D. All pressure switches and/or sensors shall have a demand check fitting for testing, servicing or replacement. C. During the brazing of pipe connections, the interior of the pipe shall be purged continuously with 5 SCFH of oil free nitrogen 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
PART 2 - PRODUCTS nitrogen at night. The outside of the tube and fittings shall be cleaned by washing with hot water of ter assembly. r';r. •''rfi'
2.01 ACCEPTABLE MANUFACTURERS
D. Threaded joints in piping systems shall be made up with polytetrofluorethylene (such as teflon) tape or other thread sealants suitable for °>' ••...•• ,.
A. Piping System Components: oxygen service. Apply sealants to the male threads only.
l. Medaes E. Support piping with pipe straps or hangers at appropriate intervals and do not support from other piping.
2. Allied Health Products, Chemetron Division. 1. Isolate copper piping from dissimilar metals. Do not use duct tape as an isolation material.
3. Squire Cogswell/Amico. F. After installation of the piping, but before installation of the outlet valves, blow lines clear by means of oil-free, dry air or nitrogen.
4. Puritan Bennett. G. The qualified brazer/certifier shall inspect the piping system for:
5. Manufacturer's model numbers are used to establish product 1. Flux or flux residue
p quality and scope, not to limit competition.
2. Excessive oxidation of all joints.
2.02 QUALIFICATION OF MANUFACTURER 3. Presence of unmelted filler metal -� W
A. Pipeline System Components: visible all around the joint at interface between the socket and the tube
Failure of the filler metal to be clearly .
1. One manufacturer shall supply the medical gas piping system components to include outlets, valves and gauges, valve boxes, alarm boxes, 4. F--
nitrous oxide manifold system, nitrogen manifold system, reserve ox 5. Cracks in the tube or component. -
y g y 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 6. Cracks in the braze filler metal.
installation of pipeline system equipment and provide a service organization to certify the system in accordance with Chapter 4 of NFPA 99. 7. Failure of the joint to hold the test pressure per NFPA 99C standing pressure test. O LrL
3. Provide ongoing service support to the Owner after acceptance of system. H. Piping protection: _
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2.03 PIPING MATERIALS 1. Piping shall be protected against freezing, corrosion, and physical damage. Buried piping outside of buildings shall be installed below the level of _ U)
A. Piping: Seamless Type K or L (ASTM 13819) co g frost penetration. 2 y
p g: y copper tubing, in accordance with NFPA 99 Chapter 4. Type K (ASTM 1319) copper tubing for p
system over 200 PSI in accordance with NFPA 99, Chapter 4. Piping shall be precleaned and plugged by supplier before shipment to jobsite. Piping 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
on-site cleaning shall not be permuted. or casings shall be used in road way, drive way, parking lots or other areas subject to surface loading.
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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
B. Medical air system intake, medical vacuum systems, vacuum exhaust, oral evacuation system, oral evacuation exhaust, anesthesia evacuation 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 = Q
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 pipe has a firm, substantially continuous bearing on the bottom of the trench. Underground piping shall be installed in a continuous split enclosure �- U
copper fittings. ° Medical oxygen service cleanliness" is not required for this pipe. (such as foomgloss) to protect the pipe from damage while bockfilling. Bockfill shall be clean and compacted so as to protect and uniformly
C. Fittings: Wrought copper, brass or bronze designed expressly for brazed connection. Fittings shall be preclean and sealed on job site, support the piping. O W
on site cleaning shall not be permitted. Cast fittin s shall not be used for brazed joints. Flared and compression- 4. A continuous tape or marker, placed immediate) above the enclosure, shall clearly identify the pipeline b specific name. In addition, a U)
g j p type connections shall be Y Y Y Y
prohibited throughout he piping 'system. continuous tape or warning means shall be provided above the pipeline at approximately one-half the depth of bury.
D. Silver brazing material: Stay-Silv-15, Silvaloy-15, Aircosil No. 15, or Phos-Silver-15. 5. Where underground piping is installed through a wall sleeve, the ends of the sleeve shall be sealed to prevent the entrance of ground water. y
6. Piping exposed to physical damage shall be adequately]. Silver brazing alloy composition: 15 % silver, 80 % copper, and 5 % phosphorus, no cadmium. P 9 9 q y protected.
2. Minimum of 1000 degrees F liquid melting point with ASTM rating of "BCuP5 I. Contractor shall instruct Owner to obtain certificate from oxygen supplier that the supplier's piping has been installed per brazing and
3. The use of flux is prohibited for the making of joints between copper to copper pipes and fittings. Appropriate flux similar to 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
"Stay-Sily-Black Flux' or 'Stay-Sily-White Flux' is required between dissimilar metals such as copper to brass or bronze material, when parts are - ,
system.
heated over a prolonged period. Use flux sparingly. Apply only a thin coat of flux to minimize possibility of flux continuous piping system. Q
3.03 INSTALLATION OF EMERGENCY OXYGEN SUPPLY CONNECTION °
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, A. Install emergency oxygen supply connection (low pressure t z x
exercise 9 Y Y9 PP Y p type) in location and per detail as set forth on plumbing drawings. Test
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 either through use of co connection in conjunction with other tests and inspections set forth in this section. Z -
pp g p g copper tear drop hangers or plastic
isolators. 3.04 INSTALLER PERFORMANCE TESTING Q
2.04 EMERGENCY OXYGEN SUPPLY CONNECTION A. After installation of the piping and valves, but before installation of the service outlets, alarm actuating switches and gauges, and before V
A. Provide a emergency oxygen supply connection (low pressure) as follows: piping and valves are concealed in walls or ceiling the line shall be blown clear by means of oil-free, dry air or nitrogen. U_ w :.:.
1. Emergency Oxygen Inlet, Medaes Part 221 -6782-800 I..I... z
2. Relief Valve, 75 psi, 1', Medaes Part 207-8209-300
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 Z
3. Check valve, 1', Medaes Part 11207-8001-300 one-half (1 -112) 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 O
gas pipelines be interconnected for testing such as a piping manifold. Maiotain test pressure for at least 24 hours. Then each joint shall be 'a
2.05 MEDICAL GAS VALVING (�
A. Main, source, base of riser and service shutoff valves (Valves Not in Boxes) examined for leakage by means of soapy water or other effective meons- of leak detection safe for use with oxygen. _
1. Valves and tubing shall be specially prepared for oxygen service and shall conform in all particulars to NFPA 99. C. Repair leaks and retest the section. Z
2. Valves shall be quarter-turn ball-type, with extensions for brazing, teflon seats and adjustable stem packing gland with teflon stem seal, 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 w
through 2°. 2-1 /2" to 3" valves shall have teflon seats and double teflon stem seal. 4-inch valves shall have Buno-N ball seats. Valves shall be 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 w (�
three piece type with full ports. line shut-off valve shall be closed during the test. Z ao'
E. After completion of the above test procedure the finishing assemblies of alarms, and all components (e.g. pressure switches, gauges, relief
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 sufficient) to help v valves, etc.) shall be installed and all medical as piping systems shall be subjected to a 24 hour standing pressure test at 20% above the normal
PP g y p aloe seat damage during soldering. Threaded Joints are not acceptable for medical 9 P P 9 Y J 9 P Q
gas valves. operating line pressure. The main line shut-off valve shall be closed during this test. z_
4. Valves manufacturer: 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 Q V
a. Medaes 6800-1000-XXX series. cc
5. Service shutoff valves shall have handle secured and tagged to prevent accidental closing. until purge produces no discoloration of the white cloth. G Z
H. To determine that no cross connection to other pipeline systems exists, reduce all systems to atmospheric pressure. Disconnect all w
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 sources to test gas from all of the systems with the exception of the one system to be checked. Pressure this system with oil-free, dry air or z
source valve �s accessible from within the building a main valve shall not be required. W
B. Area/Zone Valves (Valves in Boxes) nitrogen to a pressure of 50 psig. With appropriate adapters matching outlet labels, check each individual station outlet of all systems installed �r cc
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 to determine that test gas is being dispensed from only the outlets of this system. W
made of an anodized aluminum and attached to the box by concealed screws. The finished assembly shall be substantially dust-tight. The frame A. Perform mechanical check of all medical gas outlets prior to the certification inspection. Any necessary repairs or rework shall be done prior
assembly shall be capable of adjusting for variances in wall thickness up to one inch. The frame assembly shall contain an easily removable to system certification inspection. Check to include: O w
smoked cover window with pull ring. The window shall conceal exposed piping and valves within the box and shall be labeled 'Caution - Medical Gas 1. Installation complete.
Control Valves - Close Only in Emergency'. Tinted transparent window shall be provided to display the gas service, the area controlled by the 2. Appropriate adapters fit and securely lock in place.
valve, and pressure gauges on units so equipped. B. The valves shall be tested to verify proper operation and rooms or areas of control. Each valve shall be labeled for the rooms or area
2. Frames for valve boxes shall have uniform width for balanced appearance. Manufacturer shall provide color-coded self adhesive gas service they control.
labels for compliance with NFPA 99 labeling requirements. Apply labels to each valve within the assembly for proper gas service identification C. The alarm panels wiring shall be tested to ensure that all components are functioning properly. The alarm panels shall be tested per N.F.P.A. DRAWN JM
according to the manufacturer's instructions. 99C. CHECKED DN
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. D. The certifier shall furnish copies of Medical Gas Pipeline Inspection Report and Medical Gas Pipeline Certification. Transmit a copy of the
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 DATE -
valves may be removed prior to brazing, without disassembly of the box, to permit field rearrangement of valves if necessary. Valves shall be report and certification to each of the following parties:
ball type, cleaned for oxygen service, supplied with capped ends, and shall operate full open to closed position with 90 degree handle rotation. ]. Consulting Engineer REVISED 5/16/00
4. Valve boxes shall include 1 -112" pressure gauges reading 0-100 psig for oxygen, nitrous oxide and air; 0-300 psi for nitrogen, and 0-30' Hg 2. Hospital
for vacuum or evacuation vacuum. The gauge port shall be equipped with removable plug for pressure testing prior to final assembly of gauge. E. The presence of the desired gas shall be confirmed with the combined use of an analyzer designed to measure the specific gas dispensed,
5. Gauge model zone valve box assemblies shall read pressure downstream of the valve per NPFA 99. and a pressure gauge attached to on appropriate adaptor with results tabulated below:
6. Valve boxes:
1. Oxygen. 99-100 % Oxygen, Pressure: 50 psi, +/-5 psi : °?
a. Medaes 6802-9020-XXX series with 6802-2000-XXX. 3.05 CROSS CONNECTION TESTING AND CERTIFICATION
7. Provide individual medical gas valve identification as follows: A. Cross connection testing and certification of the medical gas system must be performed by party technically competent and experienced in t
8. Valves in box to identify room name and room numbers per Owners graphic and or signage package. the field of medical gas pipeline testing.
2.06 MEDICAL GAS ALARM SYSTEMS JOB No.-
B. Medical gas system shall be tested in accordance with NFPA 99, latest edition 9933033.0 � w
A. Master Alarm Panel (Digital) C. In addition to cross connection testing, this specification shall require the technical certifier to test each individual pipeline systems ` X
1. The digital master alarm panels shall be designed to meet the requirements of NFPA and CSA standards. Alarms shall be UL listed as an component for performance to design specifications and make any necessary adjustments to ensure a complete and working system. SHEET N0. UJ
assembly and shall include all necessary factory wiring, transformers, and circuitry requiring only 115 or 230 volt primary power. Internal D. The system shall be tested for cross connection z
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 E. Obtain and present to the Owner a complete bond report of pipeline certification from the equipment manufacturer. This letter of
down voltage.
certification shall indicate:
MG-2 Z
2. The master alarm shall be wired to remote sensors for its signal source. Alarm shall be capable of accepting o switched input. 1. That the system is free of crossed connections. _+_ Z
3. Each signal shall be labeled for its function using labels provided with the unit. Adjacent to each signal held well be highly brilliant red, 2. That all system components perform to the manufacturer's design specifications.
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