EvaporativeCooler:Indirect:ResearchSpecial:

Numeric input fields "Drift Fraction" and "Blow Down Ratio" are always set to zero even if user specifies a non zero value. Since there is no argument "lNumericFieldBlanks" passed to "GetObjectItem" routine Numeric input fields are always assumed blank.

See GetObjectItem routine setup below: "lNumericFieldBlanks" argument is not passed, so numeric input fields are always assumed blank.
GetObjectItem( cCurrentModuleObject, IndEvapCoolNum, cAlphaArgs, NumAlphas, rNumericArgs, NumNums, IOStat, _, lAlphaFieldBlanks, cAlphaFieldNames, cNumericFieldNames );

It is expected to cause diffs in the water consumption values.

Use example file "StripMallZoneEvapCooler.idf" for testing.