Re: [EnergyPlus_Support] Rated air volume flow rate per watt of rated totalcooling capacity out of range

Dear Richard,

It´s Daikin Manufacturer indoor unit model FXFQ125MVE (ceiling mounted cassete type - multi-flow)

Specifications:

Cooling capacity: 14000 W

Air flow rate: 30 m3/min;

I am trying to simulate the thermal zone with four indoor units (56000 W) and maximum air flow rate (120 m3/min).

The manual is Engineering Data, Nr ED 39-428B.

The manual on the web site link is different from what I am using.

http://www.daikinac.com/commercial/docsEngineering.asp?sec=docs&page=58

I will send you the page with the data above.

Thank you,

Adriano Carotenuto.

----- Original Message -----

From: Richard Raustad

To: EnergyPlus_Support@xxxxxxxxxxxxxxx

Sent: Wednesday, December 03, 2008 3:45 PM

Subject: Re: [EnergyPlus_Support] Rated air volume flow rate per watt of rated totalcooling capacity out of range

Would you also please provide the manufacturer name and web site link so
the E+ team can look at this data? Thank you.

Edwin Lee wrote:
>
>
> Does the simulation continue to run fine? Even though this is a
> severe error, I don't think it will cause the simulation to cease, it
> is just letting you know that this was encountered during the sizing
> runs as it moves ahead with the simulation.
>
> Edwin
>
> On Wed, Dec 3, 2008 at 11:33 AM, Adriano Carotenuto
> <adriano.carotenuto@terra.com.br
> <mailto:adriano.carotenuto@terra.com.br>> wrote:
>
> Dear All,
>
> I am trying to simulate a thermal zone with Compact HVAC: Zone:
> PTHP by entering the data from the manufacturer catalogue: 56000 W
> rated total cooling capacity (gross) and 2,0 m3/s rated air
> volume flow rate.
> But, when I run the simulation, comes up a severe error as listed
> below and the program stops running.
>
> Severe ** Sizing: COIL:DX:COOLINGBYPASSFACTOREMPIRICAL
> "2O_PAV._ZONA1 PTHP COOLING COIL": Rated air volume flow rate per
> watt of rated total cooling capacity is out of range. See
> Input-Output Reference Manual for valid range.
>
> According to manual, the range is between 0,00004027 and 0,0006041
> m3/s/W.
>
> The value of the manufacturer catalogue is 0,00003571 m3/s/W,
> below the Energyplus range.
>
> Is there some way to "bypass" this error or to modify these limits
> in the program?
>
> Please, I would appreciate if someone could help me in this question.
>
> Thank you.
>
> Adriano
>
>
>

--
Richard A. Raustad
Senior Research Engineer
Florida Solar Energy Center
University of Central Florida
1679 Clearlake Road
Cocoa, FL 32922-5703
Phone: (321) 638-1454
Fax: (321) 638-1439 or 1010
Visit our web site at: http://www.fsec.ucf.edu

UCF - From Promise to Prominence: Celebrating 40 Years

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