Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
There is a new coil model, Coil:Cooling:DX, that was recently added. And more recently added to that was alternate modes of operation in the Coil:Cooling:DX:CurveFit:Performance object.
Coil:Cooling:DX:CurveFit:Performance,
A5, \field Base Operating Mode
A6, \field Alternative Operating Mode 1
A7; \field Alternative Operating Mode 2
And each of these fields point to a new set of performance curves in the Coil:Cooling:DX:CurveFit:OperatingMode object. So if you had performance curves that defined how the combination of cooling coil and reheat coil operated as a pair, one with only the cooling coil operating, and another with both coils active, you could model that equipment. I haven't tried this yet but you might look at the example files that use these new objects to get a feel for the complexity. They are UnitarySystem_DXCoilSystemAuto.idf and UnitarySystem_FurnaceWithDXSystemRHcontrol.idf, I have not reviewed these files lately. Also, this is the new cooling coil model that will eventually replace all others.
