As a Design Engineer, Hospital Facilities Engineer or Hospital Administrator you should be concerned about the installation location of the transducers for area alarm panels. Why? The long range cost and safety risk aspects of testing will be increased drastically if they are installed above the ceiling.
NFPA 99 outlines three manifold design alternatives for Category I and II facilities. Two of the the manifold alternatives incorporated liquid vessels. The intent of this article is to point out the pros and cons of liquid vessels to help with your manifold decision making and trouble-shooting.