| (I) Thermal duct insulation. Air ducts and casings
with outside surface temperature below ambient dew point or temperature
above 80 degrees Fahrenheit shall be provided with thermal insulation.
(II) Insulation in air plenums and ducts. Linings in
air ducts and equipment shall meet the Erosion Test Method described
in Underwriters Laboratories, Inc., Standard Number 181 (relating
to Factory-Made Duct Materials and Air Duct Connectors). This document
may be obtained from the Underwriters Laboratories, Inc., 333 Pfingsten
Road, Northbrook, IL 60062-2096.
(III) Insulation flame spread and smoke developed ratings.
Interior and exterior insulation, including finishes and adhesives
on the exterior surfaces of ducts and equipment, shall have a flame
spread rating of 25 or less and a smoke developed rating of 50 or
less as required by NFPA 90A, Chapters 2 and 3.
(IV) Linings and acoustical traps. Duct lining and
acoustical traps exposed to air movement shall not be used in ducts
serving critical care areas. This requirement shall not apply to mixing
boxes and acoustical traps that have approved nonabrasive coverings
over such linings.
(V) Frangible insulation. Insulation of soft and spray-on
types shall not be used where it is subject to air currents or mechanical
erosion or where loose particles may create a maintenance problem.
(VI) Existing duct linings. Internal linings shall
not be used in ducts, terminal boxes, or other air system components
supplying operating rooms, delivery rooms, birthing rooms, labor
rooms, recovery rooms, nurseries, trauma rooms, isolation rooms,
and intensive care units unless terminal filters of at least 90% efficiency
are installed downstream of linings.
(iv) Fire damper requirements. Fire dampers shall be
located and installed in all ducts at the point of penetration of
a two-hour or higher fire rated wall or floor in accordance with the
requirements of NFPA 101, §18-5.2.
(v) Smoke damper requirements. Smoke dampers shall
be located and installed in accordance with the requirements of NFPA
101, §18-3.7.3, and NFPA 90A, Chapter 3.
(I) Fail-safe installation. Smoke dampers shall close
on activation of the fire alarm system by smoke detectors installed
and located as required by National Fire Protection Association 72,
National Fire Alarm Code, 1999 edition (NFPA 72), Chapter 5; NFPA
90A, Chapter 4; and NFPA 101, §18-3.7; the fire sprinkler system;
and upon loss of power. Smoke dampers shall not close by fan shut-down
alone.
(II) Interconnection of air handling fans and smoke
dampers. Air handling fans and smoke damper controls may be interconnected
so that closing of smoke dampers will not damage the ducts.
(III) Frangible devices. Use of frangible devices for
shutting smoke dampers is not permitted.
(vi) Acceptable damper assemblies. Only fire damper
and smoke damper assemblies integral with sleeves and listed for the
intended purpose shall be acceptable.
(vii) Duct access doors. Unobstructed access to duct
openings in accordance with NFPA 90A, §2-3.4, shall be provided
in ducts within reach and sight of every fire damper, smoke damper
and smoke detector. Each opening shall be protected by an internally
insulated door which shall be labeled externally to indicate the fire
protection device located within.
(viii) Restarting controls. Controls for restarting
fans may be installed for convenient fire department use to assist
in evacuation of smoke after a fire is controlled, provided that provisions
are made to avoid possible damage to the system because of closed
dampers. To accomplish this, smoke dampers shall be equipped with
remote control devices.
(ix) Make-up air. If air supply requirements in Table
3 of §134.131(c) of this title do not provide sufficient air
for use by exhaust hoods and safety cabinets, filtered make-up air
shall be ducted to maintain the required air flow direction in that
room. Make-up systems for hoods shall be arranged to minimize short
circuiting of air and to avoid reduction in air velocity at the point
of contaminant capture.
(4) General piping systems and plumbing fixture requirements.
All piping systems and plumbing fixtures shall be designed and installed
in accordance with the requirements of the National Standard Plumbing
Code, published by the National Association of Plumbing-Heating-Cooling
Contractors (PHCC), 2000 edition, and this paragraph. The National
Standard Plumbing Code may be obtained by writing or calling the
PHCC at the following address or telephone number: Plumbing-Heating-Cooling
Contractors, P. O. Box 6808, Falls Church, VA 22040; telephone (800)
533-7694. The facility shall comply with the requirements of this
paragraph and any specific piping systems and plumbing requirements
for the particular unit or suite of the facility in accordance with §134.123
of this title.
(A) Piping systems.
(i) Water supply systems. Water service pipe to point
of entrance to the building shall be brass pipe, copper tube (not
less than type M when buried directly), copper pipe, cast iron water
pipe, galvanized steel pipe, or approved plastic pipe. Water distribution
system piping within buildings shall be brass pipe, copper pipe,
copper tube, or galvanized steel pipe. Piping systems shall be designed
to supply water at sufficient pressure to operate all fixtures and
equipment during maximum demand.
(I) Valves. Each water service main, branch main, riser,
and branch to a group of fixtures shall be valved. Stop valves shall
be provided at each fixture.
(II) Backflow preventers. Backflow preventers (vacuum
breakers) shall be installed on hose bibbs, laboratory sinks, janitor
sinks, bedpan flushing attachments, and on all other fixtures to which
hoses or tubing can be attached.
(III) Flushing valves. Flush valves installed on plumbing
fixtures shall be of a quiet operating type, equipped with silencers.
(IV) Capacity of water heating equipment. Water heating
equipment shall have sufficient capacity to supply water for clinical,
dietary and laundry use at the temperatures and amounts specified
in Table 5 of §134.131(e) of this title.
(V) Water temperature measurements. Water temperatures
shall be measured at hot water point of use or at the inlet to processing
equipment.
(VI) Water storage tanks. Water storage tank(s) shall
be fabricated of corrosion-resistant metal or lined with noncorrosive
material.
(VII) Hot water distribution. Water distribution systems
shall be arranged to provide hot water at each hot water outlet at
all times.
(VIII) Emergency water supply. Emergency potable water
storage shall be provided. The storage capacity shall not be less
than 500 gallons or 12 gallons per patient bed, whichever is greater.
Capacity of hot water storage tanks may be included as part of the
required emergency water capacity when valves and piping systems are
arranged to make this water available at all times.
(ii) Fire sprinkler systems. Fire sprinkler systems
shall be provided in facilities as required by NFPA 101, §18-3.5.
All fire sprinkler systems shall be designed, installed, and maintained
in accordance with the requirements of NFPA13, and shall be certified
as required by §134.127(d)(3)(C) of this title (relating to Preparation,
Submittal, Review and Approval of Plans).
(iii) Nonflammable medical gas and clinical vacuum
systems. Nonflammable medical gas and clinical vacuum system installations
shall be designed, installed and certified in accordance with the
requirements of NFPA 99, §4-3 for Level I systems and the requirements
of this clause.
(I) Outlets. Nonflammable medical gas and clinical
vacuum outlets shall be provided in accordance with Table 6 of §134.131(f)
of this title.
(II) Installer qualifications. All installations of
the medical gas piping systems shall be done only by, or under the
direct supervision of a holder of a master plumber license or a journeyman
plumber license with a medical gas piping installation endorsement
issued by the Texas State Board of Plumbing Examiners.
(III) Installer tests. Prior to closing of walls,
the installer shall perform an initial pressure test, a blowdown test,
a secondary pressure test, a cross-connection test, and a purge of
the piping system as required by NFPA 99.
(IV) Qualifications for conducting verification tests
and inspections. Verification tests and inspections by a party, other
than the installer, shall be conducted by individuals who are technically
competent and experienced in the field of piped medical gas systems.
Cont'd... |
