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REGULATORY REQUIREMENTS
A. NFPA 101: Life Safety Code (2009).
B. NFPA 99: Standard for Health Care Facilities (2005).
C. Florida Building Code - 2010.
D. Guidelines for Design and Construction of Hospital and
Health Care Facilities - (2010).
MEDICAL GAS PIPING SYSTEM
FURNISH, INSTALL, AND TEST COMPLETE PIPING SYSTEM FOR 02, AIR & VAC.
SYSTEM SHALL BE PRESSURE TESTED WITH OIL FREE NITROGEN (NF) AND ANALYZED IN
ACCORDANCE WITH NFPA 99. PROVIDE BRAZER PERFORMANCE QUALIFICATION TEST RECORDS
TO ENGINEER FOR EACH GRAZER USED ON INSTALLATION PRIOR TO INSTALLATION. BRAZERS
SHALL BE QUALIFIED USTC WITH 32 MINIMUM HOURS TRAINING.
MEDICAL GAS PIPING: SEAMLESS TYPE "L" ASTM B819 HARD DRAWN COPPER WITH
WROUGHT COPPER FITTINGS FOR BRAZED CONNECTIONS IN ACCORDANCE WITH NFPA 99.
TYPE 'K' (ASTM B819) COPPER TUBING FOR SYSTEMS OVER 185 PSI & 3" AND LARGER.
ALL PIPING PRECLEANED FOR OXYGEN SERVICE ( PRECLEANED FOR OXYGEN SERVICE IS NOT
REQUIRED FOR VACUUM PIPING). PIPING SHALL BE PRECLEANED AND PLUGGED BY SUPPLIER
BEFORE SHIPMENT TO JOB SITE. PIPING ON SITE CLEANING SHALL NOT BE PERMITTED.
SILVER BRAZING MATERIAL: STAY - SILV -15, SILVALOY -15, AIRCOSIL #15, OR PHOS- SILVER -15.
SILVER BRAZING ALLOY COMPOSITION: 15% SILVER, 80% COPPER AND 5% PHOSPHORUS,
NO CADMIUM.
FLUX: DO NOT USE FOR COPPER -TO- COPPER JOINTS. USE FLUX FOR JOINING COPPER TO
BRASS OR BRONZE. EXERCISE CARE IN APPLYING THE FLUX TO AVOID LEAVING ANY EXCESS
FLUX INSIDE THE COMPLETED JOINTS.
UTILIZE UNISTRUT SUPPORTS WITH PHD MANUFACTURING MODEL #2501 - 2514 UNISTRUT
CUSHIONED CLAMPS OR PHD MODEL #153 PVC COATED TEAR DROP HANGERS. TAPE IS NOT
ACCEPTABLE.
EXPANSION ANCHORS: HILTI KWIK -BOLT, ZINC PLATED, METAL EXPANSION ANCHOR TO BE
USED ON EXISTING CONSTRUCTION. ANCHOR TO MEET U.L., ICBO -4627 AND FM LISTINGS.
CONTRACTOR SHALL PROVIDE MEDICAL GAS CERTIFICATION REPORT TO OWNER & ENGINEER
PRIOR TO FINAL AHCA INSPECTION. CONTRACTOR SHALL CERTIFY EXISTING SYSTEM
PRIOR TO CUTTING INTO EXISTING SYSTEM AND SHALL SUBMIT MEDICAL GAS
CERTIFICATION TO ENGINEER FOR REVIEW PRIOR TO ANY NEW INSTALLATION.
CONTRACTOR SHALL ALSO PROVIDE COPY OF TESTS FOR ALL STEPS AS OUTLINED IN
NFPA 99 IN ADDITION TO MEDICAL GAS CERTIFICATION.
LABEL PIPING WITH ADHESIVE LABELS. COLOR CODED PER NFPA 99. LABEL PIPING AT
INTERVALS OF NOT MORE THAN 20 FEET, AT LEAST ONCE IN EACH ROOM, AT EACH STORY
TRAVERSED BY THE PIPING SYSTEM, AT EACH WALL AND FLOOR SLAB PENETRATION, AT
EACH VALVE AND AT EACH CHANGE IN DIRECTION. PROVIDE ARROWS AT EACH LOCATION
WHERE LABELED INDICATING DIRECTION OF FLOW. SYSTEM SHALL BE INSTALLED PER NFPA
99. ALL PIPING SHALL BE PRECLEANED AND PLUGGED PRIOR TO SHIPMENT TO THE JOB SITE.
JOINTS TO BE MADE WITH 1000 DEGREES F MELTING POINT MINIMUM WITH 15% SILVER
BRAZING ALLOY. SYSTEM SHALL BE PURGED CONTINUOUSLY WITH DRY NITROGEN (NF) WHILE
BEING ASSEMBLED AND BRAZED. USE OF FLUX IS NOT ALLOWED EXCEPT ON DISSIMILAR
METALS. USE SHALL BE KEPT TO A MINIMUM. PROVIDE HANGERS ON PIPING PER NFPA 99
AND IN EACH ROOM.
CROSS CONNECTION TESTING AND CERTIFICATION OF THE NEW AND EXISTING MEDICAL
GAS SYSTEM MUST BE PERFORMED BY FACTORY TRAINED TECHNICIANS FROM THE
MEDICAL GAS PIPELINE EQUIPMENT SUPPLIER. MEDICAL GAS VALVE BOXES,
VALVES, ALARMS AND OUTLETS SHALL BE BY ONE MANUFACTURER.
MEDICAL GAS OUTLETS SHALL BE BEACON MEDAES GEMINI MODEL DISS STYLE. CONTRACTOR
SHALL VERIFY THAT OUTLETS MATCH EXISTING HOSPITAL STANDARD.
MEDICAL GAS AREA ALARM PANEL SHALL BE BEACON MEDEAS TOTALALERT2
EIGHT MODULE ALARM PANEL WITH GAS SPECIFIC MODULES AS REQUIRED BY
MED GAS SCHEDULE. PROVIDE OPTIONAL NETWORK COMMUNICATIONS BOARD CAPABLE
OF INTERFACING WITH FACILITY'S ETHERNET AND CAT -5 ETHERNET CABLE.
MEDICAL GAS ZONE VALVE BOXES SHALL BE BEACON MEDEAS. VALVE BOXES SHALL INCLUDE
1r/2" PRESSURE GAUGES READING 0 -100 PSIG FOR 02 & 0 -30" HG
FOR VACUUM. GAUGES SHALL BE LOCATED DOWNSTREAM OF VALVES.
PROVIDE PERMENANTLY ENGRAVED LABEI R ON ALL MEDICAL GAS ZONE VALVES AND ALARM
PANELS TO INDICATE AREA SERVED PER NFPA -99. COORDINATE WITH HOSPITAL STANDARDS.
PLUMBING CONTRACTOR SHALL PROVIDE AND COORDINATE ALL LOW VOLTAGE WIRING WITH
DIVISION 16 AND PROVIDE ALL REQUIRED CONDUITS. CONTRACTOR SHALL HOLD A LOW
VOLTAGE WIRING LICENSE.
PIPELINE PRODUCTS (INCLUDING ALARM PANEL, ZONE VALVE BOX AND OUTLETS) SHALL BE BY
BEACON MEDAES, AMICO OR OHIO MEDICAL. ALL PIPELINE PRODUCTS SHALL BE BY THE SAME
MANUFACTURER.
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 or 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
debarring 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.
Unlstrut 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
or electrical 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 nitrogen (NF).
K. The qualified brazer /certifier 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. All piping shall be delivered plugged or capped by manufacturer and
kept sealed until prepared for Installation
per NFPA 99 Chapter 5.1.10.1.2. Tape will not be acceptable.
M. Joints shall be brazed within eight (8) hours after surfaces are cleaned
for brazing, per NFPA 5.1.10.5.3.13.
N. After the joint has cooled the purge discharge opening shall be sealed to
prevent contamination of the inside of
the piping and maintain the nitrogen atmosphere within the piping system
per NFPA 99 chapter 5.1.10 section 5.1.10.5.3.13.
0. Piping protection:
1. Piping shall be protected against freezing, corrosion, and physical damage.
2. Piping exposed to physical damage shall be adequately protected.
3. Medical gas piping shall be protected from contact with concrete floor slabs
and other building materials, acceptable
means shall be Polyken brand 20 mil thick adhesive wrap, extending 6"
either side of contact surfaces.
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 NITROGEN (NF).
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 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.
C. REPAIR LEAKS AND RETEST THE SECTION.
D. AFTER COMPLETING THE TESTING OF EACH INDMDUAL 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 NITROGEN (NF). 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 %n 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 ATA 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 OIL -FREE, DRY NITROGEN (NF) TO A PRESSURE OF 50 PSIG.
WITH APPROPRIATE ADAPTERS MATCHING OUTLET LABELS, CHECK EACH INDMDUAL
STATION OUTLET OF ALL SYSTEMS INSTALLED TO DETERMINE THAT TEST GAS IS BEING
DISPENSED FROM ONLY THE OUTLETS OF THIS SYSTEM.
CERTIFICATION PROCEDURE
A. Perform mechanical check of all medical gas outlets prior to the
certification inspection. Any necessary repairs or rework shall be
done prior to system certification Inspection. Check to include:
1, outlets properly supported.
2. Installation complete.
3. Appropriate adapters fit and securely lock in place.
B. Medical gas system suppliers and /or certification company and
Plumbing Contractor sign Medical Gas Pipeline Inspection Agreement
describing service to be performed by the medical gas system supplier,
services not performed by the medical gas system supplier, price
quotation, and exceptions affecting quoted price.
C. The Contractor shall provide a qualified certifier to perform pipeline
certification inspection and to provide report and certification in accordance
with previously signed agreement. which shall be a 3rd party.
1. Any discrepancies discovered during the inspection shall be noted, corrected,
and any and all portions of the system affected by corrective action shall be
retested and findings recorded after retest.
D. Provide representative who shall serve as customer contact person and who
shall witness the certification inspection and certify that all outlets have been
checked and are In accordance with Inspection procedure and findings as witnessed.
E. Hospital Maintenance Department to provide representative who shall witness
the certification and certify that all spaces and the outlets have been checked in
accordance with inspection procedure.
F. All air and o2 outlets shall be tested to deliver 3.5 SCFM at 50 psi with a
maximum pressure drop of 5 psi. These tests shall be performed with oil -free, dry
nitrogen (NF).
G. Each medical gas outlet shall be purge tested to verify that a minimum of 35 cubic
feet of oil free dry nitrogen (NF) shall be filtered through a clean white 0.45 micron
filter at a minimum flow of 3.5 SCFM. Filter shall not accrue more than 0.1 mg of matter.
This test shall be performed at twenty-five percent of the zones for each gas type.
Samples taken within each zone shall be taken at the outlet furtherest from the zone valve.
H. For clinical air and o2 systems measure and record the dewpoint, total
hydrocarbons, and halogenated hydrocarbons. The maximum allowable variation for each
parameter shall be:
1. Dewpoint:.5 degrees C @ 50 PSI
2. Total hydrocarbons: 1.0 PPM
3. Halogenated hydrocarbons: 2.0 PPM
4. Tests shall be performed on the outlet most remote from the source and compared with
source gas tests. The two test shall not exceed the measurements outlined above. These
tests shall be performed with oil -free dry nitrogen (NF).
I. 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 they control.
J. 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. 99C.
K. The certifier shall furnish copies of Medical Gas Pipeline Inspection Report and
Medical Gas Pipeline Certification. Transmit a copy of the report and certification
to each of the following parties prior to 100% AHCA Inspection.
1. Contractor
2. Owner's Construction Manager
3. Architect
4. Consulting Engineer
5. Hospital
L. The following procedure should be followed In addition to the above on extensions
to existing systems, prior to 100% AHCA Inspection.
1. Contractor shall, with adequate advance notice, request that certifier or
inspection team be on -site when old piping is cut -in for installation of new lines.
2. Contractor shall arrange to have certifier or Inspection team on -site when the
existing piping is cut into for Installation of new lines.
3. Main Iine shut -off valves shall be Installed in new piping as close as possible
to point to cut -in to previously installed piping.
4. After verification of proper labeling, pressure and proper gas distribution of
previously installed piping and after cut -in procedure, the aforementioned valves
shall be considered the "service shutoff' of supply for the new piping. Contractor
shall lock or remove the handles from these valves and turn over to the Owner.
5. Before connection to the existing system and before system Is put Into service,
the system shall be pressure tested, purged, outlet flow, tested, and gases analysed
per NFPA 99.
6. After re- establishing pressure In each previously installed supply line after
.cut-in", the previously installed outlets immediately upstream for each gas and for
each cut -in point shall be opened to ensure that the proper gas is being delivered.
Gas should be bled to atmosphere prior to analyzation to ensure purging from point
of cut -in to test point.
7. Contractor shall provide copy of tests of medical gas system prior to medical gas
certification process.
M. The presence of the desired gas shall be confirmed with the combined use of an
analyzer designed to measure the specific gas dispensed, and a pressure gauge attached
to an appropriate adaptor with results tabulated below:
1. Oxygen: 99 -100% Oxygen, Pressure: 50 psi, +/ -5 psi
2. Vacuum: Pressure- Negative
3. Medical air: 19.5 - 23.5% Oxygen, Pressure: 50 psi, +/ -5 psi
n. CONTRACTOR SHALL PROVIDE MEDICAL GAS CERTIFICATION OF EXISTING SYSTEM PRIOR TO BREACHING WHICH SHALL
INCLUDE FIVE (5) OUTLETS OF EACH GAS AND VACUUM. THE GAS OUTLETS SHALL BE TESTED ATTHE END OF THE SYSTEM
AND THE VACUUM OUTLETS SHALL BE TESTED UPSTREAM OF SYSTEM TIE -IN. CONTRACTOR SHALL PROVIDE COPY OF TEST
TO ARCHITECT AND ENGINEER PRIOR TO BREACHING SYSTEM.
3.02 CROSS CONNECTION TESTING AND CERTIFICATION
A. Cross connection testing and certification of the medical gas system must be
performed by party technically competent and experienced In the Reid of medical gas
pipeline testing.
B. Medical gas system shall be tested in accordance with NFPA 99, Latest Edition,
Section 5 .
C. In addition to cross connection testing, this specification shall require the
technical certifier to test each Individual pipeline systems component for performance
to design specifications and make any necessary adjustments to ensure a complete and
working system.
D. The system shall be tested for cross connection in one of the following methods:
1. Test one pipeline system at a time at 50 psi while the others are at atmospheric
pressure including the vacuum system.
2. Reduce the pressure in all medical gas systems to atmospheric pressure. Increase the
test pressure to the piping to the following pressures:
a. Oxygen: 50 psi
b. Any medical- surgical vacuum system shall be in operation at same time that medical
gases are tested.
c. Compressed air: 60
E. Obtain and present to the Owner a complete bond report of pipeline certification
from the equipment manufacturer. This letter of certification shall indicate:
1. That the system is free of crossed connections.
F. A CERTIFICATION SHALL BE DONE FOR EACH PHASE
CLOSEOUT
CONTRACTOR SHALL PROVIDE AS BUILT DRAWINGS IN AUTOCAD FORMAT AT COMPLETION
OF PROJECT.
Smith
SR Seckman
Reid, Inc.
600 West Hillsboro, Suite 300
Deerfield Beach, FL 33441
(954) 421 -1260
FAX: (954) 421 -1466
www.ssr- inc.com
Firm Certification - EB- 0000857
Michael A. Steward PE - 65701
John E. Moulder PE - 33200
SSR JOB # 1232016.0
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Smith
SR Seckman
Reid, Inc.
600 West Hillsboro, Suite 300
Deerfield Beach, FL 33441
(954) 421 -1260
FAX: (954) 421 -1466
www.ssr- inc.com
Firm Certification - EB- 0000857
Michael A. Steward PE - 65701
John E. Moulder PE - 33200
SSR JOB # 1232016.0
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