Medical-surgical vacuum sources shall consist of the following:
- Two or more vacuum pumps sufficient to serve the peak calculated demand with the largest single vacuum pump out of service.
- Automatic means to prevent backflow from any on-cycle vacuum pump through any off-cycle vacuum pumps.
- Shutoff valve or other isolation means to isolate each vacuum pump from the centrally piped system, and other vacuum pumps for maintenance or repair without loss of vacuum in the system.
- Vacuum receiver.
- Piping between the vacuum pump(s), discharge(s), receiver(s), and vacuum source shutoff valve in accordance with Section 1308.5, except brass, galvanized, or black steel pipe which is permitted to be used as recommended by the manufacturer.
- Except as defined in Section 1314.2(1) through Section 1314.2(5), materials and devices used between the medical vacuum exhaust and the medical vacuum source that are permitted to be of any design or construction appropriate for the service, as determined by the manufacturer. [NFPA 99:126.96.36.199.1.2]
Category 2 systems shall comply with Section 1314.2, except as follows:
- Medical-surgical vacuum systems shall be permitted to be simplex.
- The facility shall develop their emergency plan to deal with the loss of medical-surgical vacuum. [NFPA 99:188.8.131.52]