[EnergyPlus_Support] Re: Controller error messages

["sm278424" <shaunmartin@xxxxxxx>]

Thank you, Linda.
Another question:  in a previous post you mentioned an in-house 
version of E+ that shows the node-branch-loop connections. I spent so 
much time trying to get these straight in this model.  Will a utility 
program like HVACDiagram be coming out soon?

Shaun


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Linda Lawrie <linda@l...> 
wrote:
> At 01:48 PM 7/14/2004, sm278424 wrote:
> 
> >I'm having difficulty finding a solution to the following messages:
> >
> >
> >
> >    ** Warning ** The design coil load is zero for
> >COIL:Water:SimpleHeating AHU HEATING COIL 1
> >    **   ~~~   ** The autosize value for max water flow rate is 
zero
> >    **   ~~~   ** To change this, input a value for UA, change the
> >heating design day, or lower
> >    **   ~~~   **   the system heating design supply air 
temperature
> >
> >    ** 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.
> 
> Not so sure about above error messages but this one
> 
> >    ** Warning ** Did not find "Mixed Air Node 1" in list of 
Sections
> 
> is due to the two lines in your included input that end in ";"
> 
> >SET POINT MANAGER:MIXED AIR,
> >     Mixed Air Temp Manager 1,
> >     TEMP,
> >     CC Air Outlet Node 1,    ! reference node
> >     Mixed Air Node 1,        !- Fan_Inlet_Node
> >     CC Air Outlet Node 1;     !- Fan_Outlet_Node
> >     Mixed Air Node 1;        !- Name of the set point Node or 
Node List
> >
> 
> Change to:
> SET POINT MANAGER:MIXED AIR,
>      Mixed Air Temp Manager 1,
>      TEMP,
>      CC Air Outlet Node 1,    ! reference node
>      Mixed Air Node 1,        !- Fan_Inlet_Node
>      CC Air Outlet Node 1,     !- Fan_Outlet_Node
>      Mixed Air Node 1;        !- Name of the set point Node or Node 
List
> 
> and see if that helps.
> 
> 
> Linda
> 
> EnergyPlus WebSite: http://www.energyplus.gov
> Owner: EnergyPlus_Support list
> Member: EnergyPlus Development Team
> 
> 
> 
> [Non-text portions of this message have been removed]



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