Re: [EnergyPlus_Support] coiling coil

["Michael J. Witte" <mjwitte@xxxxxxxx>]

See the Input Output reference for the DX cooling coil object.  The model 
requires that the airflow across the coil remain within a valid range during 
the simulation.  Check to see that the heatpump object and the coil object are 
both set to the same fan mode (cycling or continuous).

Mike


On 10 Jun 2006 at 14:21, Huafen Hu wrote:

> Hello all,
>   
>   I just got the following warning message when I tried to simulate a 
> 800sq.ft residential house. The HVAC system is an air-to-air heat pump  and I
> modeled it in E+ using UNITARYSYSTEM:HEATPUMP:AIRTOAIR. Does  anybody know
> what's the matter with that? Right now I used a ON/OFF  pump but I did try to
> change it to constant volumn pump and the warning  keeps.
>   
>   ** Warning ** COIL:DX:COOLINGBYPASSFACTOREMPIRICAL "HEAT PUMP ACDXCOIL  1" -
> Air volume flow rate per watt of rated total cooling capacity is  out of range
> error continues...
>   
>   Thanks,
>   Huafen
>   
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========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx





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