I'm working with the OpenStudio Plugin to generate an IDF in order to use it as input in an EnergyPlus simulation. I'm working with a 1-story building, with 5 rooms, a VRF System and 3 VRF Terminals.
After exporting the IDF, when I run the simulation I obtain these three warnings:
VRFCOOLCAPFT output is equal to 1.136 at rated conditions (instead of 1.0):
** Warning ** GetVRFInput: AirConditioner:VariableRefrigerantFlow="VRF SYSTEM" curve values * ~~~ ** ... Cooling Capacity Ratio Modifier Function of Low Temperature Curve Name = VRF SYSTEM VRFCOOLCAPFT 1 output is not equal to 1.0 (+ or - 10%) at rated conditions. ** ~~~ ** ... Curve output at rated conditions = 1.136COOLINGEIRLOWPLR minimum value of X = 0.500 is out of range.
It must be <= Minimum Heat Pump Part-Load Ratio = 0.250.
** Warning ** GetVRFInput: AirConditioner:VariableRefrigerantFlow="VRF SYSTEM", invalid ** ~~~ ** ...Cooling Energy Input Ratio Modifier Function of Low Part-Load Ratio Curve Name = VRF SYSTEM COOLINGEIRLOWPLR 1 has out of range value. ** ~~~ ** ...Curve minimum value of X = 0.500 must be <= Minimum Heat Pump Part-Load Ratio = 0.250.HEATINGEIRLOWPLR minimum value of X = 0.500 is out of range.
It must be <= Minimum Heat Pump Part-Load Ratio = 0.250.
** Warning ** GetVRFInput: AirConditioner:VariableRefrigerantFlow="VRF SYSTEM", invalid ** ~~~ ** ...Heating Energy Input Ratio Modifier Function of Low Part-Load Ratio Curve Name = VRF SYSTEM HEATINGEIRLOWPLR 1 has out of range value. ** ~~~ ** ...Curve minimum value of X = 0.500 must be <= Minimum Heat Pump Part-Load Ratio = 0.250.
So, finally, after the error below (caused by the three warnings above):
** Fatal ** GetVRFInput: Errors found in getting AirConditioner:VariableRefrigerantFlow system input.
** Preceding condition(s) causes termination.
EnergyPlus terminates.
Is there anyone who could help me?
PS: If useful, I could attach here the IDF.
