"Defrost Energy Input Ratio Modifier Function of Temperature Curve" is missing

asked 2022-07-10 04:26:31 -0500

Keigo's avatar

updated 2022-10-31 09:15:20 -0500

I found a bug related to HVACTemplate:System:VRF. I tried with EnergyPlus v9-6-0.

I got the following severe error, and the simulation terminated when I selected ReverseCycle as Defrost Strategy:

   ** Severe  ** AirConditioner:VariableRefrigerantFlow, "VRF_2-47F_T2_FLAT_1 VRF HEAT PUMP" Defrost Energy Input Ratio Modifier Function of Temperature Curve Name not found.

It's because Defrost Energy Input Ratio Modifier Function of Temperature Curve Name in AirConditioner:VariableRefrigerantFlow was left blank in the auto-created expidf file.

I looked for the curve in ExampleFiles which incluede HVACTemplate:System:VRF or AirConditioner:VariableRefrigerantFlow as a reference, but I couldn't find it because as far as I looked, all of their Defrost Strategy were Resistive, not ReverseCycle.

My question is: Are there any Defrost Energy Input Ratio Modifier Function of Temperature Curves which can be referenced?

edit retag flag offensive close merge delete

Comments

Seems related to this issue: https://github.com/NREL/EnergyPlus/is...

shorowit's avatar shorowit  ( 2022-07-11 12:02:41 -0500 )edit

Oh, exactly. Was it left unresolved for a long time? It's ok, but I'd like to know the default curve if any.

Keigo's avatar Keigo  ( 2022-07-11 20:07:22 -0500 )edit