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How to fix these error: "Gross Rated Total Cooling Capacity [W] will be limited by the maximum rated volume flow per rated total capacity ratio"

asked 2017-04-18 07:32:12 -0500

melanie gravatar image

updated 2017-04-18 07:33:54 -0500

In all the Cooling Coils of the Variable Refrigerant Flow System is happening the same error:

* Warning * SizeDXCoil Coil:Cooling:DX:VariableRefrigerantFlow TU7 VRF DX COOLING COIL * ~~~ * ...Gross Rated Total Cooling Capacity [W] will be limited by the maximum rated volume flow per rated total capacity ratio. * ~~~ * ...DX coil volume flow rate ( m3/s ) = 2.347873 * ~~~ * ...Requested capacity ( W ) = 15364.597 * ~~~ * ...Requested flow/capacity ratio ( m3/s/W ) = 1.528E-004 * ~~~ * ...Maximum flow/capacity ratio ( m3/s/W ) = 6.041E-005 * ~~~ * ...Adjusted capacity ( W ) = 38865.635

And as you can see, automatically for to adjust the ratio, the capacity of the coils are almost triplicating.

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answered 2020-11-08 11:58:18 -0500

This is only a Warning . You can force energyplus simulation (not the sizing simulation obviously) by hardsizing the values you need.

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answered 2020-11-06 21:42:17 -0500

Arthur Portugal gravatar image

Hello, how are you?

I saw your question, I had the same problem.

Your problem is being in the field "Zone Cooling Temperatura Supply Air" on the class of external unit (condenser).

It's probable that your design ins't very well. The default of the program is deltaC = 11 C. Try to put 9 C, or less, for solve the problem.

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Asked: 2017-04-18 07:32:12 -0500

Seen: 208 times

Last updated: Nov 08 '20