[EnergyPlus_Support] Re: Auto-Sizing for WLHP

[Karen Walkerman <kwalkerman@xxxxxxxxx>]

Can someone please help shed some light on this form me?

Thanks,

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Karen

On Mon, May 10, 2010 at 10:21 PM, Karen Walkerman <kwalkerman@xxxxxxxxx> wrote:

Hi,

I'm going through the example files provided, and noticed that at least for "5ZoneWaterLoopHeatPump.idf" equipment sizes are specified in the file.  I tried making an equivalent file from scratch, with only two-zones and allowing auto-sizing.  The simulation crashes, giving me the error below, among others.  If I set the equipment sizing to match the example file, the program runs, although with some significant warnings (my two zones are much smaller than the example file's zones).

What are the guidelines for auto-sizing of equipment?

** Severe ** GetInterpolatedSatProp: Saturation temperature for interpolation is out of range of data supplied: **
** ~~~ ** Called from:CalcWatertoAirHPHeating:LoadSideTemp During Warmup, Environment=CHICAGO_IL_USA ANNUAL HEATING 99% DESIGN CONDITIONS DB, at Simulation time=01/21 00:00 - 00:15
** ~~~ ** Refrigerant temperature = -316.27
** ~~~ ** Returned saturated property value = 29600.000

Thanks,

--

Karen

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