Alarm Systems, Area : (Hcf-PipSys) A warning system within an area of use that provides continuous visible and audible surveillance of Level 1 and Level 2 medical gas and vacuum systems
NFPA 99 Standard for Health Care Facilities, 2002 ed. https://law.resource.org/pub/us/cfr/ibr/004/nfpa.9 9.2005.pdf, (Std: Hlth Care Fcilty - Amer) {242 NFC}