Some calc programs out there show the -XX number, and some designers include that value on the data plate, without considering what that negative number really meant.
More than once I've been tasked to do a revision of a sprinkler system to upgrade from OH2 to an ESFR and the data on the design plate was very little help at all.
be aware!
Ken Wagoner, SET
Parsley Consulting
3002 Younger Drive
Harrisonville, Missouri 64701-3909
Phone: (760) 745-6181
Visit the website
Parsley Consulting
3002 Younger Drive
Harrisonville, Missouri 64701-3909
Phone: (760) 745-6181
Visit the website
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