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[EnergyPlus_Support] Re: OpenStudio HVAC Problems



1. I'm not familiar with cassette type rooftop units, but if we have the right component types needed for this system, you would create a thermostat with heating and cooling setpoint schedules and associate it with the zone(s) using this system.

2. Make sure that you have added design days to your model vs. just an epw file. Also if you use an air loop with a single zone setpoint manager, make sure you define a control zone.

David

--
David Goldwasser, LEED AP
david.goldwasser@xxxxxxxx


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Jaime Zuluaga Machado <jaimezuluagam@...> wrote:
>
> Hi everyone, 
> 
> I want to simulate a HVAC unit, specified is a
> Packages Rooftop Air Conditioner (Cassettes
> type),I get two
> questions:
> 
> 1. Is possible
> to simulate this unit with schedule and setpoints and see how much energy it consume?
> 2. The following
> error appeared: 
> ** Severe ** IP: IDF line~5603
> Object=CONTROLLER:MECHANICALVENTILATION, name=CONTROLLER MECHANICAL VENTILATION
> 1, Required Field=[Zone 1 Name] was blank.
>    ************* IDF
> Context for following error/warning message:
>    ************* Note
> -- lines truncated at 300 characters, if necessary...
>    *************   5629 SetpointManager:MixedAir,
>    *************
> indicated Name=Setpoint Manager Mixed Air 3
>    ************* Only
> last 4 lines before error line shown.....
>   *************   5630   Setpoint Manager Mixed Air 3,           !- Name
>    *************   5631   Temperature,                           !- Control Variable
>    *************   5632   Node 3,                                 !- Reference Setpoint Node Name
>    *************   5633   ,                                       !- Fan Inlet Node Name 
> 
> Does anyone know what would happened? i did it in OpenStudio, any idea what to do in OpenStudio model? help please.
> 
> 
>  
>  
> 
> 
>  
> Jaime Zuluaga M
>



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