This is a sizing issue, not an operational issue. The program should have also run to completion. If the heating coil never turns on then you can disregard this warning.
You should be able to manually set the VRF heating coil capacity and flow rate to be within the flow/watt range expected. Then you won't get this error. Is the heating coil flow rate the same as the cooling coil? If so, decrease the heating coil capacity by about 5.
You could also remove the heating coil completely from the VRF terminal unit.
Any other questions after you try this should be sent to the help desk along with your input file.
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On 1/17/2013 7:45 AM, Carolina Galeazzi
wrote:
Hi Group,
I need turn a VRF heating coil OFF (Compact Schedule = 0, Schedule Type Limits= On/OFF or =zero) , but I keep receiving these errors:
** Severe ** Sizing: COIL:Heating:DX:VariableRefrigerantFlow 03TIPO:E1.3 VRF HEATING COIL: Rated air volume flow rate per watt of rated total heating capacity is out of range.** ~~~ ** Min Rated Vol Flow Per Watt=[4.027E-005], Rated Vol Flow Per Watt=[9.198E-004], Max Rated Vol Flow Per Watt=[6.041E-005]. See Input-Output Reference Manual for valid range.
Does anyone know what else should I do to correct these errors?
Thank youCarolina
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