Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
If you have multiple HVAC equipment connected to a thermal zone, you can use the ZoneHVAC:EquipmentList to specify how the equipment behaves. For example, if you use the SequentialLoad distribution scheme, you can then specify Sequential Heating/Cooling Fractions as 0.64 for the first equipment (28000 / (28000 + 16000)) and 1.0 for the second equipment such that the first equipment serves 64% of the load and the second equipment serves 100% of the remaining load.
If you want to get fancier than that to turn on/off equipment for certain load conditions, note that the fractions above are schedules and can be adjusted on a timestep basis via EMS. So you can set up an EMS program where you create an EMS sensor on one of the "Zone Predicted Sensible Load to Setpoint" output variables for the ZoneControl:Thermostat object and then create an EMS actuator to adjust the schedule value.
