how to fix static hourly airflow rate in zonal variable data?
 
  
 
  
 
 
 
 
 
 
    
        
        asked Mar 31  
 
 alireza's avatar  
 
 
 
 
    
        
        updated Mar 31  
 
 Aaron Boranian's avatar  
 
 
 
 
 
Hi there,
 
I have a question regarding the Zone Node Airflow Rate.
 
I'm using an AirTerminal:SingleDuct:VAV:Reheat system, but when I analyze the variable outputs, the node airflow rate appears nearly constant. I expected to see hourly variations, especially since the airflow is set to autosize, meaning it should adjust hourly based on the zone demand.
 
Could you please provide some insight or suggestions on why the airflow rate might not be varying hourly, and how I could resolve this?
 
Thank you very much!
 
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1
If the airflow is constant out of this object then I would check the following: how is the upstream air handler operating? what is the minimum airflow settings? is the zone calling for heating or cooling?
Greg Estep's avatar
                        Greg Estep
                     (
    
        Mar 31
    )
Thank you Greg to take time to answer my question. really appreciate it
the handler for outdoor air showing variable performance for hour-by-hour situation
the minimum is set to 30% of max air
and the system is sizing for both cooling and heating for annual calculation
alireza's avatar
                        alireza
                     (
    
        Mar 31
    )
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