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Minimum Heat Pump PLR in HVACTemplate:System:VRF is not changed

A bug report.

No matter what value we enter in Minimum Heat Pump Part-Load Ratio in HVACTemplate:System:VRF, the generated expidf file always has Minimum Heat Pump Part-Load Ratio of 0.25 in AirConditioner:VariableRefrigerantFlow.

Keigo's avatar
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Keigo
asked 2022-10-15 06:19:48 -0500
Aaron Boranian's avatar
14.1k
Aaron Boranian
updated 2022-10-16 09:32:28 -0500
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1 Answer

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I am a bit surprised but yes the min PLR for the VRF HP is hard wired at 0.25. That should be fixed.

 CALL CreateNewObj('AirConditioner:VariableRefrigerantFlow')
 CALL AddToObjStr('Minimum Heat Pump Part-Load Ratio','0.25')
rraustad's avatar
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rraustad
answered 2022-10-15 10:16:04 -0500
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rraustad's avatar rraustad (2022-10-15 10:19:27 -0500) edit

Work around: place idf file in same folder as ExpandObjects.exe as in.idf. Double click ExpandObjects.exe. Rename expanded.idf to new file name. Edit new file and change VRF heat pump minimum part load ratio to desired value.

rraustad's avatar rraustad (2022-10-15 13:28:03 -0500) edit

Fixed for v23.1 in PR 9708.

MJWitte's avatar MJWitte (2022-11-14 08:35:22 -0500) edit
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