Is this wet system installed in a stand alone building or a box within a building? We have installed many systems in both situations in which each have their own obstacles. In many instances the circulation of the air will resolve these issues. There are certain occasions where the HVAC may need to be adjusted depending on the type of units, they are using to maintain the temperatures. Other considerations maybe how the building is constructed along with the roofing material.
Paul D. Kimble VP Operations A.S. Barlin Associates, Inc. [email protected] (973) 696-6601 Office (973) 632-8341 Cell From: John Denhardt <[email protected]> Sent: Tuesday, August 8, 2023 8:04 PM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]> Subject: [Sprinklerforum] Re: [EXTERNAL] Water filled Sprinkler Pipe Condensate issue I have personally installed many wet systems in cooler boxes. As Craig stated, once the water in the pipe reaches the temperature of the box, I have never seen an issue like this. I would suggest getting the HVAC contractor and their engineer involved. Something sounds off in their system. John John August Denhardt, P.E. Vice-President Engineering and Technical Services American Fire Sprinkler Association 301-343-1457 On Aug 8, 2023, at 17:15, Kyle.Montgomery <[email protected]<mailto:[email protected]>> wrote: Is the whole sprinkler system in the cool area? Or is there a ceiling with drops down to sprinklers into the cooler and the branch lines above in the warm area? If that is the case, then it makes sense that the drops would be colder than the surrounding air and would have condensation issues. I’ve seen this happen, but it’s so dry here (Phoenix) that it isn’t as much of an issue. -Kyle M From: [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> Sent: Tuesday, August 8, 2023 12:51 PM To: [email protected]<mailto:[email protected]> Subject: [EXTERNAL] [Sprinklerforum] Water filled Sprinkler Pipe Condensate issue A recently installed wet pipe sprinkler system protecting 25’ high rack storage of Class 3 Commodity. The warehouse is kept cool between 40° & 45° F. (aging Cheese). The Sprinkler system is a Grid Pipe with branch line piping installed about 12”+ down below the roof deck. The pipes sweat profusely to the point that the company renting the space is concerned about the cheese getting wet. The Project Manager keeps calling me for advise to resolve the situation and I have no ideas except to suggest he bring in a Mechanical Engineer with experience in Coolers. The area in question measures 300’ long x 167’ wide. Like most areas it has been a hot summer by Vermont standards. Has any one had issues like this ? Regards, G. Tim Stone G. Tim Stone Consulting, LLC NICET Level III Engineering Technician Fire Protection Sprinkler Design and Consulting Services 117 Old Stage Rd. - Essex Jct., VT. 05452 CELL: (802) 373-0638 [email protected]<mailto:[email protected]> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org To unsubscribe send an email to [email protected]<mailto:[email protected]>
_________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org To unsubscribe send an email to [email protected]
