Re: [EnergyPlus_Support] Simple HVAC model with Fan:OnOFF

[Don Shirey <shirey@xxxxxxxxxxxx>]

Look at example file FurnaceWithDXSystem.idf and see if this meets your 
needs.

With a direct expansion cooling coil, supply air conditions will vary 
slightly based on the entering air conditions.

daveurja wrote:
> I generathe idf file using EnergyPlus Example File Generator. Apparantly it is setup such that supply fan is modeled as a constant volume fan. In residential buildings the fan turns on/off as per demand. So I changed the fan type from Fan:ConstantVolume to Fan:OnOff. But I got fatal effor due to a Severe  error ** Invalid Air Loop Component Type = "FAN:ONOFF". What might be the reason?
> Is there an example idf file with simple HVAC system(one fan, one cooling coil, one heating coil and one zone) where fan turns on/off as per demand and supply air temperature is fixed for heating and cooling mode?
>
> Thank you for your help.
>
> Dave
>   


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