For a 13D, I do not think so. I believe NFPA 20 does not come into play until a 
13R, or 13.

The main point of the 13D is supposed to be lower costs.

A group home sounds like at least an R system.. But you have the full story so 
will defer to your analysis.

R/
Matt





Matthew J. Willis, C.E.T.

Ferguson Fire Design, LLC

D: (602) 337-0721<(602)%20337-0721> C: (307) 236-8249<(307)%20236-8249>

[email protected]<mailto:[email protected]>



________________________________
From: Fpdcdesign <[email protected]>
Sent: Wednesday, January 15, 2025 7:45 AM
To: Sprinklerforum <[email protected]>
Subject: [Sprinklerforum] 13D generator requirements

Caution:  This email originated from outside of the organization.  DO NOT click 
links or open attachments unless you recognize and trust the sender.
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I am working on a group home, which by all of the Code analysis, requires a 
standard 13D system. They propose to install a pump and tank system. Would a 
back up power supply be required for this? I have never been asked about it but 
can’t find much that addresses it.

Todd G Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860-535-2080<tel:860-535-2080> (ofc)
860-554-7054<tel:860-554-7054>  (fax)
860-608-4559<tel:860-608-4559> (cell)
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