Low Water Cutout Control


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As a consequence of an a recent boiler incident, an article on the National Board of Boiler and Pressure Vessel Inspectors web-site, www.nationalboard.org, reminds us of a recall and repair safety notice issued by McDonnell Miller. We wish to acknowledge the National Board for making the information available and the article is reprinted as follows:

  • “Recently, a low-water condition caused considerable damage to a Scotch Marine-type boiler. This condition may be related to a failure of a McDonnell Miller low-water cutout control. The device is equipped with a manual reset and identified as a McDonnell Miller 150SM- HD. McDonnell Miller issued a recall and repair safety notice for this and several other models on Nov. 5, 1998.
  • A complete listing of the recalled items may be obtained on the McDonnell Miller Web site at www.mcdonnellmiller.com. If one of the McDonnell Miller 150S-M-HD recall items is discovered during an inspection, Steve Mueller, McDonnell Miller customer service manager, should be contacted at 773.267.1600.
  • This recall applies only to the manual reset versions. The standard versions of 150S and 157S are unaffected. All products with a date code of September 1998 or later are also unaffected.
  • In addition, a simple field repair was performed for units built between September 1997 and August 1998. Those units bear a label attesting to the repair, and are no longer subject to this recall. “

First published September 2002

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