enow.com Web Search

  1. Ads

    related to: ac making noise when off on fire

Search results

  1. Results from the WOW.Com Content Network
  2. Sound attenuator - Wikipedia

    en.wikipedia.org/wiki/Sound_attenuator

    Ideally, sound attenuators should straddle the wall of the mechanical equipment room provided there are no fire dampers. [26] If a sound attenuator is located over occupied space, the noise control engineer should confirm that duct breakout noise is not an issue prior to the attenuator. [ 23 ]

  3. Fire alarm notification appliance - Wikipedia

    en.wikipedia.org/wiki/Fire_alarm_notification...

    The majority of audible notification appliances installed prior to 1996 produced a steady sound for evacuation. In general, no common standard at that time mandated any particular tone, or pattern for audible fire alarm evacuation signals. While less common than a steady sound, differing signaling methods were used for the same purpose.

  4. Electromagnetically induced acoustic noise - Wikipedia

    en.wikipedia.org/wiki/Electromagnetically...

    The torsional deflection of a simple cylinder cannot radiate efficiently acoustic noise, but with particular boundary conditions the stator can radiate acoustic noise under torque ripple excitation. [8] Structure-borne noise can also be generated by torque ripple when rotor shaft line vibrations propagate to the frame [9] and shaft line.

  5. Is your air conditioner making you sick? Experts unpack 'air ...

    www.aol.com/lifestyle/air-conditioner-making...

    The cool air from AC units helps balance a room’s humidity to prevent mold growth from happening. Sometimes, mold can be kept dormant for years until wet, damp conditions allow it to begin to ...

  6. Electric bell - Wikipedia

    en.wikipedia.org/wiki/Electric_bell

    Fire alarm bell. Fire alarm bells are divided into two categories: vibrating, and single-stroke. On a vibrating bell, the bell will ring continuously until the power is cut off. When power is supplied to a single-stroke bell, the bell will ring once and then stop. It will not ring again until power is turned off and on again.

  7. Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

  1. Ads

    related to: ac making noise when off on fire