Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
What is your HeatExchanger:FluidToFluid Control Type? Make sure you use something like HeatingSetpointModulated (any of the heating ones).
Check the resulting IDF too, the HX currently ends up on a PlantEquimentOperation:Uncontrolled, while ideally it would end up first in line on the PlantEquipmentOperation:HeatingLoad (FYI, this is going to be the case now that my PR #2851 got merged in), but this isn't necessarily mandatory.
Start with he control type, if it still doesn't work, I'd try to change the PlantEquipmentOperation manually, using the ruby bindings (create a PlantEquimentOperation:HeatingLoad, put the HX then the water heater, and set that to the plant Loop).
| | 2 | No.2 Revision |
What is your HeatExchanger:FluidToFluid Control Type? Make sure you use something like HeatingSetpointModulated (any of the heating ones).
Check the resulting IDF too, the HX currently ends up by default on a PlantEquimentOperation:Uncontrolled, while ideally it would end up first in line on the PlantEquipmentOperation:HeatingLoad (FYI, this is going to be the case now that my PR #2851 got merged in), but this isn't necessarily mandatory.
Start with he control type, if it still doesn't work, I'd try to change the PlantEquipmentOperation manually, using the ruby bindings (create a PlantEquimentOperation:HeatingLoad, put the HX then the water heater, and set that to the plant Loop).
| | 3 | No.3 Revision |
What is your HeatExchanger:FluidToFluid Control Type? Make sure you use something like HeatingSetpointModulated (any of the heating ones).
Check the resulting IDF too, the HX currently ends up by default on a PlantEquimentOperation:Uncontrolled, while ideally it would end up first in line on the PlantEquipmentOperation:HeatingLoad (FYI, this is going to be the case now that my PR #2851 got merged in), but this isn't necessarily mandatory.
Start with he control type, if it still doesn't work, I'd try to change the PlantEquipmentOperation manually, using the ruby bindings (create bindings: create a PlantEquimentOperation:HeatingLoad, put the HX then the water heater, and set that to the plant Loop).Loop. Set the PlantLoop's Load Distribution scheme to SequentialLoad (make sure you do end up with a PlantEquipmentList that has the HX first, then the WaterHeater:Mixed)
