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EnergyPlus VRF Piping Correction Factor Curve & Coefficient for Heating

For the EnergyPlus object AirConditioner:VariableRefrigerantFlow I can't find an example in the InputOutputReference or in the example files where the Piping Correction Factor for Length in Heating Mode Curve Name or the Piping Correction Factor for Height in Heating Mode Coefficient {1/m} inputs are used. Because these are blank changing the Equivalent Piping Length used for Piping Correction Factor in Cooling Mode {m}and Vertical Height used for Piping Correction Factor {m} only effects the cooling energy use of the system and has no effect on the heating use of the system. Does anyone know if these were intentionally left blank in the documentation and example files? Does anyone have a example curve and coefficient for the heating piping correction factor curve and coefficient?