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[EnergyPlus_Support] max itetation problem

I try to simulate a building with VAV single duct reheat system, and 
I use ¡°5ZoneAuto.idf¡± as example. I gave the exactly same system 
to my building and run it at Minneapolis, except that there is no 
plenum zone in my building.

However, I always get  ¡°** Warning ** SimHVAC: Maximum iterations 
exceeded for all HVAC loops, MINNEAPOLIS SUMMER¡±. 

I am sure there is no problem on control setpoints, schedules, 
active or passive braches because I just copied from the 5AutoZone.  
Since I used autosizing, there is no possibility that sum of 
terminal airflows is not equal to supply fan air flow.  I double 
checked all the air loop and water loop connections. It should be Ok 
if I understand correctly.

I don¡¯t know where else it might be wrong.  I attach the idf 
file "MySingleDuctReheatwithEconomizer2 "and appreciate if someone 
could help me have a look the file. Thank you so much.


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