Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
You don't have any heating equipment defined in your model. The ZoneHVAC:WindowAirConditioner object only provides cooling. Either add an additional ZoneHVAC object that provides heating (like ZoneHVAC:UnitHeater) or switch to an object that provides both heating and cooling (like ZoneHVAC:PackagedTerminalAirConditioner).
