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Re: [EnergyPlus_Support] 5zoneVAVsystem



The nodes noted in the error messages are being used for control without having 
a valid setpoint placed on them by a SET POINT MANAGER.  This could mean a 
missing set point manager, an incorrect node name in the set point manager, or 
an incorrect node name in the component that is trying to obtain a set point.  
Search the idf for each node name, see how it is being used, and then you 
should be able to determine what the problem is.

Mike


On 2 Jun 2005, at 16:34, Ali_Ajmi wrote:

> Dear All,
> I have imitated the 5ZoneVAVauto example in my equipment side, however, I got
> some errors and warnings that i can not sort out. Any advice will be greatly
> appreciated.
> 
> Program Version,EnergyPlus 1.2.1.022, 02/06/2005 16:16,IDD_Version 1.2.1.022
>    ** Severe  ** Missing reference temperature setpoint for Mixed Air Set Point
>    Manager MIXED AIR AND COIL EXIT TEMP MANAGER 1 **   ~~~   ** Node Referenced
>    =VAV SYS 1 OUTLET NODE **   ~~~   **   use a Set Point Manager to establish a
>    setpoint at this node. ** Severe  ** Missing temperature setpoint for DX unit
>    DX COOLING COIL SYSTEM 1 **   ~~~   **   use a Set Point Manager to establish
>    a setpoint at the unit control node. ** Severe  ** Missing temperature
>    setpoint for heating coil MAIN HEATING COIL 1 **   ~~~   **   use a Set Point
>    Manager to establish a setpoint at the coil temperature setpoint node. **
>    Severe  ** Missing temperature setpoint for economizer controller OA
>    CONTROLLER 1 ** Severe  ** Node Referenced (in Controller)=MIXED AIR NODE 1
>    **   ~~~   **   use a Set Point Manager to establish a setpoint at the mixed
>    air node. **  Fatal  ** Previous severe set point errors cause program
>    termination ************* Fatal error -- final processing.  More error
>    messages may appear. ************* Testing Individual Branch Integrity
>    ************* All Branches passed integrity testing ************* Testing
>    Individual Supply Air Path Integrity ************* All Supply Air Paths
>    passed integrity testing ************* Testing Individual Return Air Path
>    Integrity ************* All Return Air Paths passed integrity testing **
>    Warning ** Node Connection errors shown during "fatal error" processing may
>    be false because not all inputs may have been retrieved. ** Warning **
>    Potential Node Connection Error for object COIL:ELECTRIC:HEATING, name=ZONE
>    INTERIOR ZONE COIL **   ~~~   **   Node Types are still UNDEFINED -- See
>    Branch/Node Details file for further information **   ~~~   **   Inlet Node :
>    ZONE INTERIOR ZONE COIL AIR IN NODE **   ~~~   **   Outlet Node: ZONE
>    INTERIOR IN NODE ** Warning ** Node Connection Error for object
>    COIL:ELECTRIC:HEATING, name=ZONE INTERIOR ZONE COIL **   ~~~   **   Air Nodes
>    not on any Branch or Parent Object **   ~~~   **   Inlet Node : ZONE INTERIOR
>    ZONE COIL AIR IN NODE **   ~~~   **   Outlet Node: ZONE INTERIORNIN NODE
>    ************* There were 2 node connection errors noted. *************
> 
> Regards
> Ali
> 
> 
> 
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> 
> 
> The primary EnergyPlus web site is found at:
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> 
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> 
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> 
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========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx




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