2.20.2
Life Support System, Medical Gas and Vacuum Alarm Panels
Recessed wall panel stations, located at Operating Rooms, Delivery Rooms,
Intensive Care Units, Coronary Care units, and nurse/central stations shall
be provided for all life support medical gas services in each area as
indicated. Each panel shall contain signal lights, buzzer, silencing
pushbutton, and pressure indicating gauges. Signal lights shall be red and
shall be wired indicating the following:
Oxygen Line Pressure
High/Low
Nitrous Oxide Line Pressure
High/Low
Nitrogen Line Pressure
High/Low
Medical Air Line Pressure
Low
Medical Vacuum Line
Low Vacuum
Anesthesia and Oral Evacuation
Low Vacuum
One green light per panel shall be provided to indicate that all medical
gas systems are normal. Medical vacuum alarm shall be actuated when the
vacuum drops to 34 kPa 10 inches of mercury vacuum line. Anesthesia and
oral evacuation vacuum alarms shall be actuated when the line pressure
drops below 27 kPa 8 inches of mercury vacuum. Medical gas high/low
pressure alarms shall be actuated when the line pressure reaches
approximately 20 percent above or below normal operating pressure. Alarms
shall be activated by the pressure in the line being monitored. A buzzer
shall sound upon actuation of any alarm signal. The buzzer shall be
provided with a reset relay that shall shut off only the buzzer and not
affect the signal light, until the condition is corrected. The buzzer
shall sound again upon actuation of any additional alarm. The buzzer shall
be capable of being silenced only at the station. Alarm panels shall be
provided in each nursing unit on a wing/ward basis as indicated, but these
panels shall not include nitrous oxide, nitrogen, nor anesthesia and oral
evacuation vacuum alarms, unless specifically indicated.
2.21
SURGICAL DISPENSERS FOR MEDICAL GAS AND VACUUM SYSTEMS
2.21.1
Station Outlets
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NOTE: The type of connectors at station outlets
will be as specified by the using service. This is
required to ensure that the connectors provided are
compatible with those on Government-furnished mobile
apparatus.
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Station outlets for concealed piping shall be made of brass and shall have
an adjustable valve mechanism to compensate for variation in plaster
thickness. Each unit shall be securely mounted and self-sealing, and shall
conform to NFPA 99 for medical gas and vacuum outlets. Outlets as an
assembly shall conform to the requirements of the Underwriters Laboratories
Inc., and the Contractor shall submit proof of such conformance. The label
or listing of the specified agency will be acceptable evidence. In lieu of
the label or listing, the Contractor may submit a written certificate from
any approved nationally recognized testing organization adequately equipped
SECTION 15405A
Page 63
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