Rev. 13 November 1, 2016
Page | 55d. All medical air compressors shall be of the liquid-cooled rotary screw type with internal sound dampening on
its enclosure.
e. Do not locate any medical air compressors immediately above, below or near any noise sensitive areas.
f. Install all medical air compressors and their controls on emergency power which is fed via automatic transfer
switches. The compressors shall be fed from separate electrical load centers.
g. Install dual source cooling to each water-cooled air compressor. The primary source shall be the building-
wide chilled water system and the back-up source shall be the domestic cold water system.
h. Install cross-tie piping to other existing medical air compressors to create additional redundancy.
i. Install the outside air intakes for medical air compressors from either the roof or other location approved by
NFPA 99.
j. Install dessicant dryers for all medical air compressors, unless authorized otherwise by the Owner.
k. Interconnect the signal from the pressure sensor on the common medical air discharge main into 1) a master
alarm system that is anticipated to be installed in one of the maintenance shop areas of General Hospital in
2005, and 2) the main Telecom alarm center.22 62 00 Vacuum Systems for Laborator y a nd Healthcare Facilities^- Medical Vacuum Pumps
a. Install duplex medical vacuum pumps for each new addition or where medical vacuum capacity
expansion is required.
b. Medical vacuum pumps shall be manufactured by Quincy, Ingersoll-Rand or Sullair.
c. Air-cooled vacuum pumps are acceptable only at sizes below 20 hp. Water-cooled vacuum pumps are
acceptable at all sizes. All water-cooled vacuum pumps shall be installed with a primary and a back-up
source of cooling water.
d. Install all medical vacuum pumps on emergency power which is fed via automatic transfer switches.
e. Install cross-tie piping to other existing medical vacuum pumps to create additional redundancy.
f. Interconnect the signal from the pressure sensor on the common medical vacuum intake main into 1) a master
alarm system that is anticipated to be installed in one of the maintenance shop areas of General Hospital in
2005, and 2) the main Telecom alarm center.
22 63 00 Gas Systems for Laboratory and Healthcare Facilities- Back-up Cylinder Rooms For Oxygen and Medical Air
a. Back-up cylinder systems shall be manual systems by Western.
b. Rooms shall be designed per NFPA 99 including appropriate wall construction and ventilation.
c. Medical gas cylinders shall be properly secured per NFPA 99.
d. Design of room shall be coordinated with Owner, Respiratory Therapy, and relevant
User group.
e. Shut-off valves on the incoming building supplies shall be no higher than 5’-6” above floor.
f. Medical gas cylinders for back-up cylinder rooms will be Owner furnished.
g. The following is a schematic and photographs of the recommended layout of valving and piping for back-up
cylinder rooms for Oxygen and Medical Air.