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I have a small office model using ZoneHVAC:IdealLoadsAirSystem with ThermostatSetpoint:DualSetpoint. The cooling and heating setpoint schedules are defined with identical timing: Schedule:Compact, HTGSETP_SCH, Temperature, Through: 12/31, For: Weekdays, Until: 06:00, 0, Until: 22:00, 21, Until: 24:00, 0, ... Schedule:Compact, CLGSETP_SCH, Temperature, Through: 10/31, ...

Why am I receiving these errors? I used the standard weather data provided. 3.xml: Warning: No EPW design conditions found; calculating design conditions from EPW weather data. 1.xml: Warning: No EPW design conditions found; calculating design conditions from EPW weather data. 2.xml: Warning: No EPW design conditions found; calculating design conditions from EPW weather data. 4...

NLR team: It seems that the new BEOpt 3.1.1 version is a hard break from previous versions. Is there any way to port over individual measures that were set up in earlier versions, or some kind of HPXML translator? Similarly, can we export HPXML from 3.0.1 and import to 3.1.1? We still will have some users and back-references for it. Glad to see so many feature enhancements! Lo...

I want to know if it's possible to do the following: Pause an ongoing simulation Make it execute another program and give it a simulation result on that timestep Get data as input from that external program Use that data and continue the simulation. Basically, I want to run a year-long simulation stopping at the end of each day to execute external software. Giving that externa...

I am comparing the performance of two envelopes. However, when modeling natural ventilation, the windows open and close 350-400 hours per year depending on the envelope to maintain the temperature range specified. I was originally planning to compare the zone operative temperature of the two different envelope. With natural ventilation object in place within the model, the venti...