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2006 IMC Prohibited Tees - 2009?

Joined
Feb 26, 2010
Messages
8
Location
Fairbanks, Alaska
We're working on adopting the 2009 Codes in our jurisdiction. I note the Tee Application prohibition of the 2006 IMC 1206.1.1, "Fluid in the supply side of a hydronic system shall not enter a tee fitting through the branch opening.", is deleted in the 2009 IMC. I can't find mention of the reasoning behind this revision in the 2009 Significant Changes to the IPC, IMC, IFGC. Can anyone point me to where I can find the basis for the revision?
 
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