Has anyone setup a pump on a preaction system to prestart at device signal to 
get it prestarted before valve trip?  I have several large preaction systems 
and am having issues with water delivery times.  I need to shave off a few 
seconds and noticed that the program gives an option to have the pump prestart. 
 We are required on this project to provide the water delivery calculations, so 
I cannot use 7.2.3.4 to avoid the water delivery time requirement.

My specific question is, does anyone know of any concerns the contractor should 
have for doing this?  Are there any operations/maintenance concerns?  Are false 
trips a problem?

Micah Davis, SET
NICET #124745
Water Based Systems Layout, Level IV

Dynamic Fire Designs



Mail: [email protected]
Mobile: 931-242-1299
www.dynamicfiredesigns.com<http://dynamicfiredesigns.com>

Dynamic Fire Designs * 247 Winthrop Dr. * Spring Hill * FL * 34609

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