Denzel Washington on screen and stage. Denzel Washington is an American actor who made his feature film debut in Carbon Copy (1981).[1] In 1982, Washington made his first appearance in the medical drama St. Elsewhere as Dr. Philip Chandler.
Report Abuse. Sprinklers do not detect smoke. Some operate by a fuse that melts, from the heat of a fire, to release water, others operate by a sudden drop in water or air pressure in the pipe which is controlled by a alarm system, when activated.
I've spoken with the Fire Sprinkler Maintenance company and they tell me the noise is a compressor that turns on and shuts off regularly to maintain the water pressure on the system. They tell me that the compressor could be relocated and instead of being suspended on water pipes, it could be installed on the cement floor with rubber feet to minimize vibration and then reconnected.